Updated TDesktop sources to 2.3.2+d34eabd

2020-08-28 19:30:52 +03:00 · 2020-08-28 19:30:52 +03:00 · 37d9cf2350
commit 37d9cf2350
parent afb72c646b d34eabdc11
210 changed files with 6138 additions and 2505 deletions
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@ -61,6 +61,7 @@ jobs:
        defines:
          - ""
          - "DESKTOP_APP_DISABLE_DBUS_INTEGRATION"
+          - "TDESKTOP_DISABLE_GTK_INTEGRATION"

    env:
      GIT: "https://github.com"
@ -102,7 +103,8 @@ jobs:
          libgtk2.0-dev libice-dev libsm-dev libicu-dev libdrm-dev dh-autoreconf \
          autoconf automake build-essential libxml2-dev libass-dev libfreetype6-dev \
          libgpac-dev libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev \
-          libvorbis-dev libxcb1-dev libxcb-image0-dev libxcb-shm0-dev libxcb-screensaver0-dev \
+          libvorbis-dev libxcb1-dev libxcb-image0-dev libxcb-shm0-dev \
+          libxcb-screensaver0-dev libjpeg-dev ninja-build \
          libxcb-xfixes0-dev libxcb-keysyms1-dev libxcb-icccm4-dev libatspi2.0-dev \
          libxcb-render-util0-dev libxcb-util0-dev libxcb-xkb-dev libxrender-dev \
          libasound-dev libpulse-dev libxcb-sync0-dev libxcb-randr0-dev libegl1-mesa-dev \
@ -380,7 +382,7 @@ jobs:
          make -j$(nproc)
          sudo make DESTDIR="$LibrariesPath/openssl-cache" install_sw
          cd ..
-          rm -rf $opensslDir
+          # rm -rf $opensslDir # Keep this folder for WebRTC.
      - name: OpenSSL install.
        run: |
          cd $LibrariesPath
@ -430,8 +432,8 @@ jobs:

          git clone -b v5.12.8 --depth=1 git://code.qt.io/qt/qt5.git qt_${QT}
          cd qt_${QT}
-          perl init-repository --module-subset=qtbase,qtwayland,qtimageformats,qtsvg,qtx11extras
-          git submodule update qtbase qtwayland qtimageformats qtsvg qtx11extras
+          perl init-repository --module-subset=qtbase,qtwayland,qtimageformats,qtsvg
+          git submodule update qtbase qtwayland qtimageformats qtsvg
          cd qtbase
          find ../../patches/qtbase_${QT} -type f -print0 | sort -z | xargs -r0 git apply
          cd ..
@ -519,7 +521,40 @@ jobs:
          mkdir -p breakpad/out/Default/
          cp breakpad-cache/dump_syms breakpad/out/Default/dump_syms

-      - name: Kotatogram Desktop build.
+      - name: WebRTC cache.
+        id: cache-webrtc
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/tg_owt
+          key: ${{ runner.OS }}-webrtc-${{ env.CACHE_KEY }}
+      - name: WebRTC.
+        if: steps.cache-webrtc.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/desktop-app/tg_owt.git
+          mkdir -p tg_owt/out/Debug
+          cd tg_owt/out/Debug
+          cmake -G Ninja \
+          -DCMAKE_BUILD_TYPE=Debug \
+          -DTG_OWT_SPECIAL_TARGET=linux \
+          -DTG_OWT_LIBJPEG_INCLUDE_PATH=`pwd`/../../../qt_$QT/qtbase/src/3rdparty/libjpeg \
+          -DTG_OWT_OPENSSL_INCLUDE_PATH=$OPENSSL_PREFIX/include \
+          -DTG_OWT_OPUS_INCLUDE_PATH=/usr/local/include/opus \
+          -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/include \
+          ../..
+          ninja
+
+          # Cleanup.
+          cd $LibrariesPath/tg_owt
+          mv out/Debug/libtg_owt.a libtg_owt.a
+          rm -rf out
+          mkdir -p out/Debug
+          mv libtg_owt.a out/Debug/libtg_owt.a
+
+          rm -rf $LibrariesPath/openssl_${OPENSSL_VER}
+
+      - name: Telegram Desktop build.
        if: env.ONLY_CACHE == 'false'
        run: |
          cd $REPO_NAME/Telegram
@ -537,6 +572,7 @@ jobs:
          -D CMAKE_CXX_FLAGS="-s" \
          -D TDESKTOP_API_TEST=ON \
          -D DESKTOP_APP_USE_PACKAGED=OFF \
+          -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \
          $DEFINE

          cd ../out/Debug
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@ -86,6 +86,7 @@ jobs:

      - name: First set up.
        run: |
+          sudo chown -R `whoami`:admin /usr/local/share
          brew install automake fdk-aac lame libass libtool libvorbis libvpx \
          ninja opus sdl shtool texi2html theora x264 xvid yasm pkg-config

@ -160,7 +161,7 @@ jobs:
          $MIN_MAC
          make build_libs -j$(nproc)

-          SSL_DIR=$LibrariesPath/openssl_${{ env.OPENSSL_VER }}
+          SSL_DIR=$LibrariesPath/openssl_$OPENSSL_VER
          mkdir -p $SSL_DIR/include
          copyLib() {
            cp $1.a $SSL_DIR/$1.a
@ -425,8 +426,8 @@ jobs:
        run: |
          cd $LibrariesPath

-          git clone git://code.qt.io/qt/qt5.git qt$QT
-          cd qt$QT
+          git clone git://code.qt.io/qt/qt5.git qt_$QT
+          cd qt_$QT
          perl init-repository --module-subset=qtbase,qtimageformats
          git checkout v5.12.8
          git submodule update qtbase
@ -455,6 +456,36 @@ jobs:
          make clean
          cp -r $QT_PREFIX $LibrariesPath/qt-cache

+      - name: WebRTC cache.
+        id: cache-webrtc
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/tg_owt
+          key: ${{ runner.OS }}-webrtc-${{ env.CACHE_KEY }}
+      - name: WebRTC.
+        if: steps.cache-webrtc.outputs.cache-hit != 'true'
+        run: |
+          cd $LibrariesPath
+
+          git clone $GIT/desktop-app/tg_owt.git
+          mkdir -p tg_owt/out/Debug
+          cd tg_owt/out/Debug
+          cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug \
+          -DTG_OWT_SPECIAL_TARGET=mac \
+          -DTG_OWT_LIBJPEG_INCLUDE_PATH=`pwd`/../../../qt_$QT/qtbase/src/3rdparty/libjpeg \
+          -DTG_OWT_OPENSSL_INCLUDE_PATH=`pwd`/../../../openssl_$OPENSSL_VER/include \
+          -DTG_OWT_OPUS_INCLUDE_PATH=$PREFIX/include/opus \
+          -DTG_OWT_FFMPEG_INCLUDE_PATH=/usr/local/include \
+          ../..
+          ninja
+
+          # Cleanup.
+          cd $LibrariesPath/tg_owt
+          mv out/Debug/libtg_owt.a libtg_owt.a
+          rm -rf out
+          mkdir -p out/Debug
+          mv libtg_owt.a out/Debug/libtg_owt.a
+
      - name: Kotatogram Desktop build.
        if: env.ONLY_CACHE == 'false'
        run: |
@ -469,7 +500,11 @@ jobs:
            echo ::set-env name=ARTIFACT_NAME::Kotatogram
          fi

-          ./configure.sh -D TDESKTOP_API_TEST=ON -D DESKTOP_APP_USE_PACKAGED=OFF $DEFINE
+          ./configure.sh \
+          -D TDESKTOP_API_TEST=ON \
+          -D DESKTOP_APP_USE_PACKAGED=OFF \
+          -D DESKTOP_APP_DISABLE_CRASH_REPORTS=OFF \
+          $DEFINE

          cd ../out

--- a/.github/workflows/snap.yml
+++ b/.github/workflows/snap.yml
@ -13,6 +13,7 @@ on:
      - '!.github/workflows/snap.yml'
      - 'Telegram/build/**'
      - 'Telegram/Patches/**'
+      - '!Telegram/Patches/ffmpeg.diff'
      - 'Telegram/Resources/uwp/**'
      - 'Telegram/Resources/winrc/**'
      - 'Telegram/SourceFiles/platform/win/**'
@ -32,6 +33,7 @@ on:
      - '!.github/workflows/snap.yml'
      - 'Telegram/build/**'
      - 'Telegram/Patches/**'
+      - '!Telegram/Patches/ffmpeg.diff'
      - 'Telegram/Resources/uwp/**'
      - 'Telegram/Resources/winrc/**'
      - 'Telegram/SourceFiles/platform/win/**'
@ -62,18 +64,19 @@ jobs:

      - name: First set up.
        run: |
-          # Workaround for permanent problems with third-party repository keys
-          sudo rm -rf /etc/apt/sources.list.d/*
-
-          sudo apt-get update
          sudo snap install --classic snapcraft

          # Workaround for snapcraft
          # See https://forum.snapcraft.io/t/13258
          sudo chown root:root /

+          sudo usermod -aG lxd $USER
+
+          sudo snap run lxd init --auto
+          sudo snap run lxd waitready
+
      - name: Kotatogram Desktop snap build.
-        run: sudo snap run snapcraft --destructive-mode
+        run: sg lxd -c 'snap run snapcraft --use-lxd'

      - name: Move artifact.
        if: env.UPLOAD_ARTIFACT == 'true'
--- a/.github/workflows/win.yml
+++ b/.github/workflows/win.yml
@ -67,6 +67,7 @@ jobs:
      VC: "call vcvars32.bat && cd Libraries"
      GIT: "https://github.com"
      QT: "5_12_8"
+      QT_VER: "5.12.8"
      OPENSSL_VER: "1_1_1"
      UPLOAD_ARTIFACT: "true"
      ONLY_CACHE: "false"
@ -128,6 +129,20 @@ jobs:
          cd Patches
          eval $checkoutCommit

+      - name: Find any version of Python 2.
+        shell: cmd
+        run: |
+          echo Find any version of Python 2.
+          for /D %%a in (C:\hostedtoolcache\windows\Python\2.*) do (
+            SET PY2=%%a\x64
+          )
+          if [%PY2%] == [] (
+            echo Python 2 is not found.
+            exit 1
+          )
+          echo Found %PY2%.
+          echo ::set-env name=PY2::%PY2%
+
      - name: LZMA.
        shell: cmd
        run: |
@ -221,16 +236,6 @@ jobs:
        run: |
          cd %LibrariesPath%

-          echo Find any version of Python 2.
-          for /D %%a in (C:\hostedtoolcache\windows\Python\2.*) do (
-            SET PY2=%%a\x64
-          )
-          IF [%PY2%] == [] (
-            echo Python 2 is not found.
-            exit 1
-          )
-          echo Found %PY2%.
-
          git clone %GIT%/telegramdesktop/gyp.git
          cd gyp
          SET PATH=%PY2%;%cd%;%PATH%
@ -300,7 +305,7 @@ jobs:
        id: cache-qt
        uses: actions/cache@v2
        with:
-          path: ${{ env.LibrariesPath }}/Qt-5.12.8
+          path: ${{ env.LibrariesPath }}/Qt-${{ env.QT_VER }}
          key: ${{ runner.OS }}-qt-${{ env.CACHE_KEY }}-${{ hashFiles('**/qtbase_5_12_8/*') }}
      - name: Configure Qt 5.12.8.
        if: steps.cache-qt.outputs.cache-hit != 'true'
@ -311,18 +316,18 @@ jobs:
          git clone git://code.qt.io/qt/qt5.git qt_%QT%
          cd qt_%QT%
          perl init-repository --module-subset=qtbase,qtimageformats
-          git checkout v5.12.8
+          git checkout v%QT_VER%
          git submodule update qtbase
          git submodule update qtimageformats
          cd qtbase
          for /r %%i in (..\..\patches\qtbase_%QT%\*) do git apply %%i
          cd ..

-          SET SSL=%LibrariesPath%\openssl_1_1_1
+          SET SSL=%LibrariesPath%\openssl_%OPENSSL_VER%
          SET LIBS=libcrypto.lib Ws2_32.lib Gdi32.lib Advapi32.lib Crypt32.lib User32.lib

          configure ^
-          -prefix "%LibrariesPath%\Qt-5.12.8" ^
+          -prefix "%LibrariesPath%\Qt-%QT_VER%" ^
          -debug ^
          -force-debug-info ^
          -opensource ^
@ -350,6 +355,57 @@ jobs:
          cd ..
          rmdir /S /Q qt_%QT%

+      - name: WebRTC cache.
+        id: cache-webrtc
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.LibrariesPath }}/tg_owt
+          key: ${{ runner.OS }}-webrtc-${{ env.CACHE_KEY }}
+      - name: WebRTC.
+        if: steps.cache-webrtc.outputs.cache-hit != 'true'
+        shell: cmd
+        run: |
+          %VC%
+
+          :: Qt libjpeg.
+          mkdir qt_%QT%
+          cd qt_%QT%
+          git clone -b %QT_VER% https://github.com/qt/qtbase
+
+          move qtbase\src\3rdparty\libjpeg ..
+          cd ..
+          dir
+          rmdir /S /Q qt_%QT%
+          mkdir qt_%QT%\qtbase\src\3rdparty\
+          move libjpeg qt_%QT%\qtbase\src\3rdparty\
+
+          :: WebRTC.
+          cd %LibrariesPath%
+
+          git clone %GIT%/desktop-app/tg_owt.git
+          mkdir tg_owt\out\Debug
+          cd tg_owt\out\Debug
+          cmake -G Ninja ^
+          -DCMAKE_BUILD_TYPE=Debug ^
+          -DTG_OWT_SPECIAL_TARGET=win ^
+          -DTG_OWT_LIBJPEG_INCLUDE_PATH=%cd%/../../../qt_%QT%/qtbase/src/3rdparty/libjpeg ^
+          -DTG_OWT_OPENSSL_INCLUDE_PATH=%cd%/../../../openssl_%OPENSSL_VER%/include ^
+          -DTG_OWT_OPUS_INCLUDE_PATH=%cd%/../../../opus/include ^
+          -DTG_OWT_FFMPEG_INCLUDE_PATH=%cd%/../../../ffmpeg ^
+          ../..
+
+          ninja
+
+          :: Cleanup.
+          cd %LibrariesPath%\tg_owt
+          move out\Debug\tg_owt.lib tg_owt.lib
+          rmdir /S /Q out
+          mkdir out\Debug
+          move tg_owt.lib out\Debug\tg_owt.lib
+
+          cd %LibrariesPath%
+          rmdir /S /Q qt_%QT%
+
      - name: Read defines.
        shell: bash
        run: |
--- a/.gitmodules
+++ b/.gitmodules
@ -94,3 +94,9 @@
 [submodule "Telegram/ThirdParty/fcitx5-qt"]
 	path = Telegram/ThirdParty/fcitx5-qt
 	url = https://github.com/fcitx/fcitx5-qt.git
+[submodule "Telegram/lib_webrtc"]
+	path = Telegram/lib_webrtc
+	url = https://github.com/desktop-app/lib_webrtc.git
+[submodule "Telegram/ThirdParty/tgcalls"]
+	path = Telegram/ThirdParty/tgcalls
+	url = https://github.com/TelegramMessenger/tgcalls.git
--- a/Telegram/CMakeLists.txt
+++ b/Telegram/CMakeLists.txt
@ -18,6 +18,7 @@ endif()
 add_subdirectory(lib_storage)
 add_subdirectory(lib_lottie)
 add_subdirectory(lib_qr)
+add_subdirectory(lib_webrtc)
 add_subdirectory(codegen)

 include(CheckCXXSourceCompiles)
@ -34,6 +35,7 @@ include(cmake/lib_ffmpeg.cmake)
 include(cmake/lib_mtproto.cmake)
 include(cmake/lib_scheme.cmake)
 include(cmake/lib_tgvoip.cmake)
+include(cmake/lib_tgcalls.cmake)

 set(style_files
    boxes/boxes.style
@ -67,6 +69,35 @@ generate_numbers(Telegram ${res_loc}/numbers.txt)

 set_target_properties(Telegram PROPERTIES AUTOMOC ON AUTORCC ON)

+target_link_libraries(Telegram
+PRIVATE
+    tdesktop::lib_tgcalls_legacy
+    tdesktop::lib_tgcalls
+    tdesktop::lib_tgvoip
+    tdesktop::lib_mtproto
+    tdesktop::lib_scheme
+    tdesktop::lib_export
+    desktop-app::lib_webrtc
+    desktop-app::lib_base
+    desktop-app::lib_crl
+    desktop-app::lib_ui
+    desktop-app::lib_tl
+    desktop-app::lib_storage
+    desktop-app::lib_lottie
+    desktop-app::lib_qr
+    desktop-app::lib_ffmpeg
+    desktop-app::external_lz4
+    desktop-app::external_rlottie
+    desktop-app::external_zlib
+    desktop-app::external_minizip
+    desktop-app::external_qt
+    desktop-app::external_qr_code_generator
+    desktop-app::external_crash_reports
+    desktop-app::external_auto_updates
+    desktop-app::external_openssl
+    desktop-app::external_openal
+)
+
 if (LINUX)
    target_link_libraries(Telegram
    PRIVATE
@ -93,39 +124,8 @@ if (LINUX)
            desktop-app::external_hime_qt
        )
    endif()
-endif()

-if (add_hunspell_library)
-    target_link_libraries(Telegram PRIVATE desktop-app::external_hunspell)
-endif()
-
-target_link_libraries(Telegram
-PRIVATE
-    tdesktop::lib_mtproto
-    tdesktop::lib_scheme
-    tdesktop::lib_export
-    tdesktop::lib_tgvoip
-    desktop-app::lib_base
-    desktop-app::lib_crl
-    desktop-app::lib_ui
-    desktop-app::lib_tl
-    desktop-app::lib_storage
-    desktop-app::lib_lottie
-    desktop-app::lib_qr
-    desktop-app::lib_ffmpeg
-    desktop-app::external_lz4
-    desktop-app::external_rlottie
-    desktop-app::external_zlib
-    desktop-app::external_minizip
-    desktop-app::external_qt
-    desktop-app::external_qr_code_generator
-    desktop-app::external_crash_reports
-    desktop-app::external_auto_updates
-    desktop-app::external_openssl
-    desktop-app::external_openal
-)
-
-if (LINUX AND DESKTOP_APP_USE_PACKAGED AND Qt5WaylandClient_VERSION VERSION_LESS 5.13.0)
+    if (DESKTOP_APP_USE_PACKAGED AND Qt5WaylandClient_VERSION VERSION_LESS 5.13.0)
        find_package(PkgConfig REQUIRED)
        pkg_check_modules(WAYLAND_CLIENT REQUIRED wayland-client)

@ -133,9 +133,8 @@ if (LINUX AND DESKTOP_APP_USE_PACKAGED AND Qt5WaylandClient_VERSION VERSION_LESS
        PRIVATE
            ${WAYLAND_CLIENT_INCLUDE_DIRS}
        )
-endif()
+    endif()

-if (LINUX)
    if (DESKTOP_APP_USE_PACKAGED)
        find_package(PkgConfig REQUIRED)
        pkg_check_modules(XCB_SCREENSAVER REQUIRED IMPORTED_TARGET xcb-screensaver)
@ -150,34 +149,39 @@ if (LINUX)
        target_link_static_libraries(Telegram PRIVATE xcb-screensaver)
        target_link_libraries(Telegram PRIVATE xcb)
    endif()
-endif()

-if (LINUX AND NOT TDESKTOP_DISABLE_GTK_INTEGRATION)
    find_package(PkgConfig REQUIRED)
-    target_compile_options(Telegram PRIVATE -Wno-register)
-
-    if (DESKTOP_APP_USE_PACKAGED AND NOT DESKTOP_APP_USE_PACKAGED_LAZY)
-        pkg_check_modules(X11 REQUIRED IMPORTED_TARGET x11)
-        pkg_check_modules(GOBJECT2 REQUIRED IMPORTED_TARGET gobject-2.0)
    pkg_check_modules(GLIB2 REQUIRED IMPORTED_TARGET glib-2.0)
-        pkg_check_modules(GTK3 REQUIRED IMPORTED_TARGET gtk+-3.0)
+    pkg_check_modules(GOBJECT REQUIRED IMPORTED_TARGET gobject-2.0)
+    pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)

    target_link_libraries(Telegram
    PRIVATE
-            PkgConfig::X11
-            PkgConfig::GOBJECT2
        PkgConfig::GLIB2
+        PkgConfig::GOBJECT
+        PkgConfig::GIO
+    )
+
+    target_compile_definitions(Telegram PRIVATE G_LOG_DOMAIN="Telegram")
+    target_compile_options(Telegram PRIVATE -Wno-register)
+
+    if (NOT TDESKTOP_DISABLE_GTK_INTEGRATION)
+        find_package(PkgConfig REQUIRED)
+
+        if (DESKTOP_APP_USE_PACKAGED AND NOT DESKTOP_APP_USE_PACKAGED_LAZY)
+            pkg_check_modules(GTK3 REQUIRED IMPORTED_TARGET gtk+-3.0)
+            pkg_check_modules(X11 REQUIRED IMPORTED_TARGET x11)
+
+            target_link_libraries(Telegram
+            PRIVATE
                PkgConfig::GTK3
+                PkgConfig::X11
            )
        else()
            pkg_search_module(GTK REQUIRED gtk+-2.0 gtk+-3.0)
-        target_link_libraries(Telegram
-        PRIVATE
-            X11
-            gobject-2.0
-            glib-2.0
-        )
            target_include_directories(Telegram PRIVATE ${GTK_INCLUDE_DIRS})
+            target_link_libraries(Telegram PRIVATE X11)
+        endif()
    endif()
 endif()

@ -213,6 +217,8 @@ PRIVATE
    api/api_single_message_search.h
    api/api_text_entities.cpp
    api/api_text_entities.h
+    api/api_toggling_media.cpp
+    api/api_toggling_media.h
    api/api_updates.cpp
    api/api_updates.h
    boxes/filters/edit_filter_box.cpp
@ -313,17 +319,20 @@ PRIVATE
    calls/calls_box_controller.h
    calls/calls_call.cpp
    calls/calls_call.h
-    calls/calls_controller.cpp
-    calls/calls_controller.h
-    calls/calls_controller_tgvoip.h
    calls/calls_emoji_fingerprint.cpp
    calls/calls_emoji_fingerprint.h
    calls/calls_instance.cpp
    calls/calls_instance.h
    calls/calls_panel.cpp
    calls/calls_panel.h
+    calls/calls_signal_bars.cpp
+    calls/calls_signal_bars.h
    calls/calls_top_bar.cpp
    calls/calls_top_bar.h
+    calls/calls_userpic.cpp
+    calls/calls_userpic.h
+    calls/calls_video_bubble.cpp
+    calls/calls_video_bubble.h
    chat_helpers/bot_keyboard.cpp
    chat_helpers/bot_keyboard.h
    chat_helpers/emoji_keywords.cpp
@ -340,6 +349,8 @@ PRIVATE
    chat_helpers/gifs_list_widget.h
    chat_helpers/message_field.cpp
    chat_helpers/message_field.h
+    chat_helpers/send_context_menu.cpp
+    chat_helpers/send_context_menu.h
    chat_helpers/spellchecker_common.cpp
    chat_helpers/spellchecker_common.h
    chat_helpers/stickers_emoji_image_loader.cpp
--- a/Telegram/Patches/build_ffmpeg_win.sh
+++ b/Telegram/Patches/build_ffmpeg_win.sh
@ -13,6 +13,8 @@ pacman --noconfirm -S pkg-config
 PKG_CONFIG_PATH="/mingw64/lib/pkgconfig:$PKG_CONFIG_PATH"

 ./configure --toolchain=msvc \
+--extra-cflags="-DCONFIG_SAFE_BITSTREAM_READER=1" \
+--extra-cxxflags="-DCONFIG_SAFE_BITSTREAM_READER=1" \
 --extra-ldflags="-libpath:$FullExecPath/../opus/win32/VS2015/Win32/Release" \
 --disable-programs \
 --disable-doc \
--- a/Telegram/Patches/ffmpeg.diff
+++ b/Telegram/Patches/ffmpeg.diff
@ -0,0 +1,225 @@
+diff --git a/libavcodec/aarch64/Makefile b/libavcodec/aarch64/Makefile
+index 00f93bf59f..52da7036f3 100644
+--- a/libavcodec/aarch64/Makefile
+++ b/libavcodec/aarch64/Makefile
+@@ -6,6 +6,7 @@ OBJS-$(CONFIG_H264DSP)                  += aarch64/h264dsp_init_aarch64.o
+ OBJS-$(CONFIG_H264PRED)                 += aarch64/h264pred_init.o
+ OBJS-$(CONFIG_H264QPEL)                 += aarch64/h264qpel_init_aarch64.o
+ OBJS-$(CONFIG_HPELDSP)                  += aarch64/hpeldsp_init_aarch64.o
+OBJS-$(CONFIG_IDCTDSP)                  += aarch64/idctdsp_init_aarch64.o
+ OBJS-$(CONFIG_MPEGAUDIODSP)             += aarch64/mpegaudiodsp_init.o
+ OBJS-$(CONFIG_NEON_CLOBBER_TEST)        += aarch64/neontest.o
+ OBJS-$(CONFIG_VIDEODSP)                 += aarch64/videodsp_init.o
+@@ -21,6 +22,7 @@ OBJS-$(CONFIG_VC1DSP)                   += aarch64/vc1dsp_init_aarch64.o
+ OBJS-$(CONFIG_VORBIS_DECODER)           += aarch64/vorbisdsp_init.o
+ OBJS-$(CONFIG_VP9_DECODER)              += aarch64/vp9dsp_init_10bpp_aarch64.o \
+                                            aarch64/vp9dsp_init_12bpp_aarch64.o \
+                                           aarch64/vp9mc_aarch64.o             \
+                                            aarch64/vp9dsp_init_aarch64.o
+ 
+ # ARMv8 optimizations
+@@ -41,8 +43,7 @@ NEON-OBJS-$(CONFIG_H264PRED)            += aarch64/h264pred_neon.o
+ NEON-OBJS-$(CONFIG_H264QPEL)            += aarch64/h264qpel_neon.o             \
+                                            aarch64/hpeldsp_neon.o
+ NEON-OBJS-$(CONFIG_HPELDSP)             += aarch64/hpeldsp_neon.o
+-NEON-OBJS-$(CONFIG_IDCTDSP)             += aarch64/idctdsp_init_aarch64.o      \
+-                                           aarch64/simple_idct_neon.o
+NEON-OBJS-$(CONFIG_IDCTDSP)             += aarch64/simple_idct_neon.o
+ NEON-OBJS-$(CONFIG_MDCT)                += aarch64/mdct_neon.o
+ NEON-OBJS-$(CONFIG_MPEGAUDIODSP)        += aarch64/mpegaudiodsp_neon.o
+ NEON-OBJS-$(CONFIG_VP8DSP)              += aarch64/vp8dsp_neon.o
+diff --git a/libavcodec/aarch64/idctdsp_init_aarch64.c b/libavcodec/aarch64/idctdsp_init_aarch64.c
+index 0406e60830..742a3372e3 100644
+--- a/libavcodec/aarch64/idctdsp_init_aarch64.c
+++ b/libavcodec/aarch64/idctdsp_init_aarch64.c
+@@ -21,6 +21,8 @@
+  */
+ 
+ #include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/arm/cpu.h"
+ #include "libavcodec/avcodec.h"
+ #include "libavcodec/idctdsp.h"
+ #include "idct.h"
+@@ -28,7 +30,9 @@
+ av_cold void ff_idctdsp_init_aarch64(IDCTDSPContext *c, AVCodecContext *avctx,
+                                      unsigned high_bit_depth)
+ {
+-    if (!avctx->lowres && !high_bit_depth) {
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags) && !avctx->lowres && !high_bit_depth) {
+         if (avctx->idct_algo == FF_IDCT_AUTO ||
+             avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
+             avctx->idct_algo == FF_IDCT_SIMPLENEON) {
+diff --git a/libavcodec/aarch64/vp9mc_16bpp_neon.S b/libavcodec/aarch64/vp9mc_16bpp_neon.S
+index cac6428709..53b372c262 100644
+--- a/libavcodec/aarch64/vp9mc_16bpp_neon.S
+++ b/libavcodec/aarch64/vp9mc_16bpp_neon.S
+@@ -25,31 +25,6 @@
+ //                            const uint8_t *ref, ptrdiff_t ref_stride,
+ //                            int h, int mx, int my);
+ 
+-function ff_vp9_copy128_aarch64, export=1
+-1:
+-        ldp             x5,  x6,  [x2]
+-        ldp             x7,  x8,  [x2, #16]
+-        stp             x5,  x6,  [x0]
+-        ldp             x9,  x10, [x2, #32]
+-        stp             x7,  x8,  [x0, #16]
+-        subs            w4,  w4,  #1
+-        ldp             x11, x12, [x2, #48]
+-        stp             x9,  x10, [x0, #32]
+-        stp             x11, x12, [x0, #48]
+-        ldp             x5,  x6,  [x2, #64]
+-        ldp             x7,  x8,  [x2, #80]
+-        stp             x5,  x6,  [x0, #64]
+-        ldp             x9,  x10, [x2, #96]
+-        stp             x7,  x8,  [x0, #80]
+-        ldp             x11, x12, [x2, #112]
+-        stp             x9,  x10, [x0, #96]
+-        stp             x11, x12, [x0, #112]
+-        add             x2,  x2,  x3
+-        add             x0,  x0,  x1
+-        b.ne            1b
+-        ret
+-endfunc
+-
+ function ff_vp9_avg64_16_neon, export=1
+         mov             x5,  x0
+         sub             x1,  x1,  #64
+diff --git a/libavcodec/aarch64/vp9mc_aarch64.S b/libavcodec/aarch64/vp9mc_aarch64.S
+new file mode 100644
+index 0000000000..f17a8cf04a
+--- /dev/null
+++ b/libavcodec/aarch64/vp9mc_aarch64.S
+@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2016 Google Inc.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+// All public functions in this file have the following signature:
+// typedef void (*vp9_mc_func)(uint8_t *dst, ptrdiff_t dst_stride,
+//                            const uint8_t *ref, ptrdiff_t ref_stride,
+//                            int h, int mx, int my);
+
+function ff_vp9_copy128_aarch64, export=1
+1:
+        ldp             x5,  x6,  [x2]
+        ldp             x7,  x8,  [x2, #16]
+        stp             x5,  x6,  [x0]
+        ldp             x9,  x10, [x2, #32]
+        stp             x7,  x8,  [x0, #16]
+        subs            w4,  w4,  #1
+        ldp             x11, x12, [x2, #48]
+        stp             x9,  x10, [x0, #32]
+        stp             x11, x12, [x0, #48]
+        ldp             x5,  x6,  [x2, #64]
+        ldp             x7,  x8,  [x2, #80]
+        stp             x5,  x6,  [x0, #64]
+        ldp             x9,  x10, [x2, #96]
+        stp             x7,  x8,  [x0, #80]
+        ldp             x11, x12, [x2, #112]
+        stp             x9,  x10, [x0, #96]
+        stp             x11, x12, [x0, #112]
+        add             x2,  x2,  x3
+        add             x0,  x0,  x1
+        b.ne            1b
+        ret
+endfunc
+
+function ff_vp9_copy64_aarch64, export=1
+1:
+        ldp             x5,  x6,  [x2]
+        ldp             x7,  x8,  [x2, #16]
+        stp             x5,  x6,  [x0]
+        ldp             x9,  x10, [x2, #32]
+        stp             x7,  x8,  [x0, #16]
+        subs            w4,  w4,  #1
+        ldp             x11, x12, [x2, #48]
+        stp             x9,  x10, [x0, #32]
+        stp             x11, x12, [x0, #48]
+        add             x2,  x2,  x3
+        add             x0,  x0,  x1
+        b.ne            1b
+        ret
+endfunc
+
+function ff_vp9_copy32_aarch64, export=1
+1:
+        ldp             x5,  x6,  [x2]
+        ldp             x7,  x8,  [x2, #16]
+        stp             x5,  x6,  [x0]
+        subs            w4,  w4,  #1
+        stp             x7,  x8,  [x0, #16]
+        add             x2,  x2,  x3
+        add             x0,  x0,  x1
+        b.ne            1b
+        ret
+endfunc
+diff --git a/libavcodec/aarch64/vp9mc_neon.S b/libavcodec/aarch64/vp9mc_neon.S
+index f67624ca04..abf2bae9db 100644
+--- a/libavcodec/aarch64/vp9mc_neon.S
+++ b/libavcodec/aarch64/vp9mc_neon.S
+@@ -25,23 +25,6 @@
+ //                            const uint8_t *ref, ptrdiff_t ref_stride,
+ //                            int h, int mx, int my);
+ 
+-function ff_vp9_copy64_aarch64, export=1
+-1:
+-        ldp             x5,  x6,  [x2]
+-        ldp             x7,  x8,  [x2, #16]
+-        stp             x5,  x6,  [x0]
+-        ldp             x9,  x10, [x2, #32]
+-        stp             x7,  x8,  [x0, #16]
+-        subs            w4,  w4,  #1
+-        ldp             x11, x12, [x2, #48]
+-        stp             x9,  x10, [x0, #32]
+-        stp             x11, x12, [x0, #48]
+-        add             x2,  x2,  x3
+-        add             x0,  x0,  x1
+-        b.ne            1b
+-        ret
+-endfunc
+-
+ function ff_vp9_avg64_neon, export=1
+         mov             x5,  x0
+ 1:
+@@ -64,19 +47,6 @@ function ff_vp9_avg64_neon, export=1
+         ret
+ endfunc
+ 
+-function ff_vp9_copy32_aarch64, export=1
+-1:
+-        ldp             x5,  x6,  [x2]
+-        ldp             x7,  x8,  [x2, #16]
+-        stp             x5,  x6,  [x0]
+-        subs            w4,  w4,  #1
+-        stp             x7,  x8,  [x0, #16]
+-        add             x2,  x2,  x3
+-        add             x0,  x0,  x1
+-        b.ne            1b
+-        ret
+-endfunc
+-
+ function ff_vp9_avg32_neon, export=1
+ 1:
+         ld1             {v2.16b, v3.16b},  [x2], x3
--- a/Telegram/Resources/icons/call_answer.png
+++ b/Telegram/Resources/icons/call_answer.png
--- a/Telegram/Resources/icons/call_answer@2x.png
+++ b/Telegram/Resources/icons/call_answer@2x.png
--- a/Telegram/Resources/icons/call_answer@3x.png
+++ b/Telegram/Resources/icons/call_answer@3x.png
--- a/Telegram/Resources/icons/call_camera_active.png
+++ b/Telegram/Resources/icons/call_camera_active.png
--- a/Telegram/Resources/icons/call_camera_active@2x.png
+++ b/Telegram/Resources/icons/call_camera_active@2x.png
--- a/Telegram/Resources/icons/call_camera_active@3x.png
+++ b/Telegram/Resources/icons/call_camera_active@3x.png
--- a/Telegram/Resources/icons/call_camera_muted.png
+++ b/Telegram/Resources/icons/call_camera_muted.png
--- a/Telegram/Resources/icons/call_camera_muted@2x.png
+++ b/Telegram/Resources/icons/call_camera_muted@2x.png
--- a/Telegram/Resources/icons/call_camera_muted@3x.png
+++ b/Telegram/Resources/icons/call_camera_muted@3x.png
--- a/Telegram/Resources/icons/call_cancel.png
+++ b/Telegram/Resources/icons/call_cancel.png
--- a/Telegram/Resources/icons/call_cancel@2x.png
+++ b/Telegram/Resources/icons/call_cancel@2x.png
--- a/Telegram/Resources/icons/call_cancel@3x.png
+++ b/Telegram/Resources/icons/call_cancel@3x.png
--- a/Telegram/Resources/icons/call_discard.png
+++ b/Telegram/Resources/icons/call_discard.png
--- a/Telegram/Resources/icons/call_discard@2x.png
+++ b/Telegram/Resources/icons/call_discard@2x.png
--- a/Telegram/Resources/icons/call_discard@3x.png
+++ b/Telegram/Resources/icons/call_discard@3x.png
--- a/Telegram/Resources/icons/call_record_active.png
+++ b/Telegram/Resources/icons/call_record_active.png
--- a/Telegram/Resources/icons/call_record_active@2x.png
+++ b/Telegram/Resources/icons/call_record_active@2x.png
--- a/Telegram/Resources/icons/call_record_active@3x.png
+++ b/Telegram/Resources/icons/call_record_active@3x.png
--- a/Telegram/Resources/icons/call_record_muted.png
+++ b/Telegram/Resources/icons/call_record_muted.png
--- a/Telegram/Resources/icons/call_record_muted@2x.png
+++ b/Telegram/Resources/icons/call_record_muted@2x.png
--- a/Telegram/Resources/icons/call_record_muted@3x.png
+++ b/Telegram/Resources/icons/call_record_muted@3x.png
--- a/Telegram/Resources/icons/calls_close_main.png
+++ b/Telegram/Resources/icons/calls_close_main.png
--- a/Telegram/Resources/icons/calls_close_main@2x.png
+++ b/Telegram/Resources/icons/calls_close_main@2x.png
--- a/Telegram/Resources/icons/calls_close_main@3x.png
+++ b/Telegram/Resources/icons/calls_close_main@3x.png
--- a/Telegram/Resources/icons/calls_close_shadow.png
+++ b/Telegram/Resources/icons/calls_close_shadow.png
--- a/Telegram/Resources/icons/calls_close_shadow@2x.png
+++ b/Telegram/Resources/icons/calls_close_shadow@2x.png
--- a/Telegram/Resources/icons/calls_close_shadow@3x.png
+++ b/Telegram/Resources/icons/calls_close_shadow@3x.png
--- a/Telegram/Resources/icons/calls_maximize_main.png
+++ b/Telegram/Resources/icons/calls_maximize_main.png
--- a/Telegram/Resources/icons/calls_maximize_main@2x.png
+++ b/Telegram/Resources/icons/calls_maximize_main@2x.png
--- a/Telegram/Resources/icons/calls_maximize_main@3x.png
+++ b/Telegram/Resources/icons/calls_maximize_main@3x.png
--- a/Telegram/Resources/icons/calls_maximize_shadow.png
+++ b/Telegram/Resources/icons/calls_maximize_shadow.png
--- a/Telegram/Resources/icons/calls_maximize_shadow@2x.png
+++ b/Telegram/Resources/icons/calls_maximize_shadow@2x.png
--- a/Telegram/Resources/icons/calls_maximize_shadow@3x.png
+++ b/Telegram/Resources/icons/calls_maximize_shadow@3x.png
--- a/Telegram/Resources/icons/calls_minimize_main.png
+++ b/Telegram/Resources/icons/calls_minimize_main.png
--- a/Telegram/Resources/icons/calls_minimize_main@2x.png
+++ b/Telegram/Resources/icons/calls_minimize_main@2x.png
--- a/Telegram/Resources/icons/calls_minimize_main@3x.png
+++ b/Telegram/Resources/icons/calls_minimize_main@3x.png
--- a/Telegram/Resources/icons/calls_minimize_shadow.png
+++ b/Telegram/Resources/icons/calls_minimize_shadow.png
--- a/Telegram/Resources/icons/calls_minimize_shadow@2x.png
+++ b/Telegram/Resources/icons/calls_minimize_shadow@2x.png
--- a/Telegram/Resources/icons/calls_minimize_shadow@3x.png
+++ b/Telegram/Resources/icons/calls_minimize_shadow@3x.png
--- a/Telegram/Resources/icons/calls_mute_tooltip.png
+++ b/Telegram/Resources/icons/calls_mute_tooltip.png
--- a/Telegram/Resources/icons/calls_mute_tooltip@2x.png
+++ b/Telegram/Resources/icons/calls_mute_tooltip@2x.png
--- a/Telegram/Resources/icons/calls_mute_tooltip@3x.png
+++ b/Telegram/Resources/icons/calls_mute_tooltip@3x.png
--- a/Telegram/Resources/icons/calls_mute_userpic.png
+++ b/Telegram/Resources/icons/calls_mute_userpic.png
--- a/Telegram/Resources/icons/calls_mute_userpic@2x.png
+++ b/Telegram/Resources/icons/calls_mute_userpic@2x.png
--- a/Telegram/Resources/icons/calls_mute_userpic@3x.png
+++ b/Telegram/Resources/icons/calls_mute_userpic@3x.png
--- a/Telegram/Resources/icons/calls_restore_main.png
+++ b/Telegram/Resources/icons/calls_restore_main.png
--- a/Telegram/Resources/icons/calls_restore_main@2x.png
+++ b/Telegram/Resources/icons/calls_restore_main@2x.png
--- a/Telegram/Resources/icons/calls_restore_main@3x.png
+++ b/Telegram/Resources/icons/calls_restore_main@3x.png
--- a/Telegram/Resources/icons/calls_restore_shadow.png
+++ b/Telegram/Resources/icons/calls_restore_shadow.png
--- a/Telegram/Resources/icons/calls_restore_shadow@2x.png
+++ b/Telegram/Resources/icons/calls_restore_shadow@2x.png
--- a/Telegram/Resources/icons/calls_restore_shadow@3x.png
+++ b/Telegram/Resources/icons/calls_restore_shadow@3x.png
--- a/Telegram/Resources/icons/calls_shadow_controls.png
+++ b/Telegram/Resources/icons/calls_shadow_controls.png
--- a/Telegram/Resources/icons/calls_shadow_controls@2x.png
+++ b/Telegram/Resources/icons/calls_shadow_controls@2x.png
--- a/Telegram/Resources/icons/calls_shadow_controls@3x.png
+++ b/Telegram/Resources/icons/calls_shadow_controls@3x.png
--- a/Telegram/Resources/langs/lang.strings
+++ b/Telegram/Resources/langs/lang.strings
@ -370,6 +370,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_settings_adaptive_wide" = "Adaptive layout for wide screens";

 "lng_settings_section_call_settings" = "Calls Settings";
+"lng_settings_call_camera" = "Camera";
 "lng_settings_call_section_output" = "Speakers and headphones";
 "lng_settings_call_section_input" = "Microphone";
 "lng_settings_call_input_device" = "Input device";
@ -380,7 +381,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_settings_call_stop_mic_test" = "Stop test";
 "lng_settings_call_section_other" = "Other settings";
 "lng_settings_call_open_system_prefs" = "Open system sound preferences";
-"lng_settings_call_device_default" = "Default";
+"lng_settings_call_device_default" = "Same as the System";
 "lng_settings_call_audio_ducking" = "Mute other sounds during calls";

 "lng_settings_language" = "Language";
@ -1219,6 +1220,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_recent_stickers" = "Frequently used";
 "lng_faved_stickers_add" = "Add to Favorites";
 "lng_faved_stickers_remove" = "Remove from Favorites";
+"lng_recent_stickers_remove" = "Remove from Recent";
 "lng_group_stickers" = "Group stickers";
 "lng_group_stickers_description" = "You can choose a sticker set which will be available for every member while in the group chat.";
 "lng_group_stickers_add" = "Choose sticker set";
@ -1468,6 +1470,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_context_copy_text" = "Copy Text";
 "lng_context_open_gif" = "Open GIF";
 "lng_context_save_gif" = "Save GIF";
+"lng_context_delete_gif" = "Delete GIF";
 "lng_context_attached_stickers" = "Attached Stickers";
 "lng_context_to_msg" = "Go To Message";
 "lng_context_reply_msg" = "Reply";
@ -1723,6 +1726,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL

 "lng_call_error_not_available" = "Sorry, {user} doesn't accept calls.";
 "lng_call_error_outdated" = "{user}'s app does not support calls. They need to update their app before you can call them.";
+"lng_call_error_no_camera" = "No camera could be found. Please make sure that your camera is connected to the computer.";
+"lng_call_error_camera_not_started" = "You can switch to video call once you're connected.";
+"lng_call_error_camera_outdated" = "{user}'s app does not support video calls. They need to update their app.";
 "lng_call_error_audio_io" = "There seems to be a problem with audio playback on your computer. Please make sure that your computer's speakers and microphone are working and try again.";

 "lng_call_bar_hangup" = "End call";
@ -1735,16 +1741,33 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_call_box_status_group" = "({amount}) {status}";

 "lng_call_outgoing" = "Outgoing call";
+"lng_call_video_outgoing" = "Outgoing video call";
 "lng_call_incoming" = "Incoming call";
+"lng_call_video_incoming" = "Incoming video call";
 "lng_call_missed" = "Missed call";
+"lng_call_video_missed" = "Missed video call";
 "lng_call_cancelled" = "Cancelled call";
+"lng_call_video_cancelled" = "Cancelled video call";
 "lng_call_declined" = "Declined call";
+"lng_call_video_declined" = "Declined video call";
 "lng_call_duration_info" = "{time}, {duration}";
 "lng_call_type_and_duration" = "{type} ({duration})";

 "lng_call_rate_label" = "Please rate the quality of your call";
 "lng_call_rate_comment" = "Comment (optional)";

+"lng_call_start_video" = "Start Video";
+"lng_call_stop_video" = "Stop Video";
+"lng_call_end_call" = "End Call";
+"lng_call_mute_audio" = "Mute";
+"lng_call_unmute_audio" = "Unmute";
+"lng_call_accept" = "Accept";
+"lng_call_decline" = "Decline";
+"lng_call_redial" = "Redial";
+"lng_call_cancel" = "Cancel";
+
+"lng_call_microphone_off" = "{user}'s microphone is off";
+
 "lng_no_mic_permission" = "Telegram needs access to your microphone so that you can make calls and record voice messages.";

 "lng_player_message_today" = "Today at {time}";
--- a/Telegram/Resources/numbers.txt
+++ b/Telegram/Resources/numbers.txt
@ -206,7 +206,7 @@
 53;CU;Cuba;53 XXXX XXXX;10;
 52;MX;Mexico;
 51;PE;Peru;51 XXX XXX XXX;11;
-49;DE;Germany;49 XXX XXXXXXXX;13;
+49;DE;Germany;
 48;PL;Poland;48 XXX XXX XXX;11;
 47;NO;Norway;47 XXXX XXXX;10;
 46;SE;Sweden;46 XX XXX XXXX;11;
--- a/Telegram/Resources/tl/api.tl
+++ b/Telegram/Resources/tl/api.tl
@ -109,7 +109,7 @@ storage.fileMp4#b3cea0e4 = storage.FileType;
 storage.fileWebp#1081464c = storage.FileType;

 userEmpty#200250ba id:int = User;
-user#938458c1 flags:# self:flags.10?true contact:flags.11?true mutual_contact:flags.12?true deleted:flags.13?true bot:flags.14?true bot_chat_history:flags.15?true bot_nochats:flags.16?true verified:flags.17?true restricted:flags.18?true min:flags.20?true bot_inline_geo:flags.21?true support:flags.23?true scam:flags.24?true id:int access_hash:flags.0?long first_name:flags.1?string last_name:flags.2?string username:flags.3?string phone:flags.4?string photo:flags.5?UserProfilePhoto status:flags.6?UserStatus bot_info_version:flags.14?int restriction_reason:flags.18?Vector<RestrictionReason> bot_inline_placeholder:flags.19?string lang_code:flags.22?string = User;
+user#938458c1 flags:# self:flags.10?true contact:flags.11?true mutual_contact:flags.12?true deleted:flags.13?true bot:flags.14?true bot_chat_history:flags.15?true bot_nochats:flags.16?true verified:flags.17?true restricted:flags.18?true min:flags.20?true bot_inline_geo:flags.21?true support:flags.23?true scam:flags.24?true apply_min_photo:flags.25?true id:int access_hash:flags.0?long first_name:flags.1?string last_name:flags.2?string username:flags.3?string phone:flags.4?string photo:flags.5?UserProfilePhoto status:flags.6?UserStatus bot_info_version:flags.14?int restriction_reason:flags.18?Vector<RestrictionReason> bot_inline_placeholder:flags.19?string lang_code:flags.22?string = User;

 userProfilePhotoEmpty#4f11bae1 = UserProfilePhoto;
 userProfilePhoto#69d3ab26 flags:# has_video:flags.0?true photo_id:long photo_small:FileLocation photo_big:FileLocation dc_id:int = UserProfilePhoto;
@ -128,7 +128,7 @@ channel#d31a961e flags:# creator:flags.0?true left:flags.2?true broadcast:flags.
 channelForbidden#289da732 flags:# broadcast:flags.5?true megagroup:flags.8?true id:int access_hash:long title:string until_date:flags.16?int = Chat;

 chatFull#1b7c9db3 flags:# can_set_username:flags.7?true has_scheduled:flags.8?true id:int about:string participants:ChatParticipants chat_photo:flags.2?Photo notify_settings:PeerNotifySettings exported_invite:ExportedChatInvite bot_info:flags.3?Vector<BotInfo> pinned_msg_id:flags.6?int folder_id:flags.11?int = ChatFull;
-channelFull#f0e6672a flags:# can_view_participants:flags.3?true can_set_username:flags.6?true can_set_stickers:flags.7?true hidden_prehistory:flags.10?true can_view_stats:flags.12?true can_set_location:flags.16?true has_scheduled:flags.19?true id:int about:string participants_count:flags.0?int admins_count:flags.1?int kicked_count:flags.2?int banned_count:flags.2?int online_count:flags.13?int read_inbox_max_id:int read_outbox_max_id:int unread_count:int chat_photo:Photo notify_settings:PeerNotifySettings exported_invite:ExportedChatInvite bot_info:Vector<BotInfo> migrated_from_chat_id:flags.4?int migrated_from_max_id:flags.4?int pinned_msg_id:flags.5?int stickerset:flags.8?StickerSet available_min_id:flags.9?int folder_id:flags.11?int linked_chat_id:flags.14?int location:flags.15?ChannelLocation slowmode_seconds:flags.17?int slowmode_next_send_date:flags.18?int stats_dc:flags.12?int pts:int = ChatFull;
+channelFull#f0e6672a flags:# can_view_participants:flags.3?true can_set_username:flags.6?true can_set_stickers:flags.7?true hidden_prehistory:flags.10?true can_set_location:flags.16?true has_scheduled:flags.19?true can_view_stats:flags.20?true id:int about:string participants_count:flags.0?int admins_count:flags.1?int kicked_count:flags.2?int banned_count:flags.2?int online_count:flags.13?int read_inbox_max_id:int read_outbox_max_id:int unread_count:int chat_photo:Photo notify_settings:PeerNotifySettings exported_invite:ExportedChatInvite bot_info:Vector<BotInfo> migrated_from_chat_id:flags.4?int migrated_from_max_id:flags.4?int pinned_msg_id:flags.5?int stickerset:flags.8?StickerSet available_min_id:flags.9?int folder_id:flags.11?int linked_chat_id:flags.14?int location:flags.15?ChannelLocation slowmode_seconds:flags.17?int slowmode_next_send_date:flags.18?int stats_dc:flags.12?int pts:int = ChatFull;

 chatParticipant#c8d7493e user_id:int inviter_id:int date:int = ChatParticipant;
 chatParticipantCreator#da13538a user_id:int = ChatParticipant;
@ -225,7 +225,7 @@ inputReportReasonOther#e1746d0a text:string = ReportReason;
 inputReportReasonCopyright#9b89f93a = ReportReason;
 inputReportReasonGeoIrrelevant#dbd4feed = ReportReason;

-userFull#edf17c12 flags:# blocked:flags.0?true phone_calls_available:flags.4?true phone_calls_private:flags.5?true can_pin_message:flags.7?true has_scheduled:flags.12?true user:User about:flags.1?string settings:PeerSettings profile_photo:flags.2?Photo notify_settings:PeerNotifySettings bot_info:flags.3?BotInfo pinned_msg_id:flags.6?int common_chats_count:int folder_id:flags.11?int = UserFull;
+userFull#edf17c12 flags:# blocked:flags.0?true phone_calls_available:flags.4?true phone_calls_private:flags.5?true can_pin_message:flags.7?true has_scheduled:flags.12?true video_calls_available:flags.13?true user:User about:flags.1?string settings:PeerSettings profile_photo:flags.2?Photo notify_settings:PeerNotifySettings bot_info:flags.3?BotInfo pinned_msg_id:flags.6?int common_chats_count:int folder_id:flags.11?int = UserFull;

 contact#f911c994 user_id:int mutual:Bool = Contact;

@ -818,13 +818,14 @@ inputStickerSetItem#ffa0a496 flags:# document:InputDocument emoji:string mask_co
 inputPhoneCall#1e36fded id:long access_hash:long = InputPhoneCall;

 phoneCallEmpty#5366c915 id:long = PhoneCall;
-phoneCallWaiting#1b8f4ad1 flags:# video:flags.5?true id:long access_hash:long date:int admin_id:int participant_id:int protocol:PhoneCallProtocol receive_date:flags.0?int = PhoneCall;
-phoneCallRequested#87eabb53 flags:# video:flags.5?true id:long access_hash:long date:int admin_id:int participant_id:int g_a_hash:bytes protocol:PhoneCallProtocol = PhoneCall;
-phoneCallAccepted#997c454a flags:# video:flags.5?true id:long access_hash:long date:int admin_id:int participant_id:int g_b:bytes protocol:PhoneCallProtocol = PhoneCall;
-phoneCall#8742ae7f flags:# p2p_allowed:flags.5?true id:long access_hash:long date:int admin_id:int participant_id:int g_a_or_b:bytes key_fingerprint:long protocol:PhoneCallProtocol connections:Vector<PhoneConnection> start_date:int = PhoneCall;
-phoneCallDiscarded#50ca4de1 flags:# need_rating:flags.2?true need_debug:flags.3?true video:flags.5?true id:long reason:flags.0?PhoneCallDiscardReason duration:flags.1?int = PhoneCall;
+phoneCallWaiting#1b8f4ad1 flags:# video:flags.6?true id:long access_hash:long date:int admin_id:int participant_id:int protocol:PhoneCallProtocol receive_date:flags.0?int = PhoneCall;
+phoneCallRequested#87eabb53 flags:# video:flags.6?true id:long access_hash:long date:int admin_id:int participant_id:int g_a_hash:bytes protocol:PhoneCallProtocol = PhoneCall;
+phoneCallAccepted#997c454a flags:# video:flags.6?true id:long access_hash:long date:int admin_id:int participant_id:int g_b:bytes protocol:PhoneCallProtocol = PhoneCall;
+phoneCall#8742ae7f flags:# p2p_allowed:flags.5?true video:flags.6?true id:long access_hash:long date:int admin_id:int participant_id:int g_a_or_b:bytes key_fingerprint:long protocol:PhoneCallProtocol connections:Vector<PhoneConnection> start_date:int = PhoneCall;
+phoneCallDiscarded#50ca4de1 flags:# need_rating:flags.2?true need_debug:flags.3?true video:flags.6?true id:long reason:flags.0?PhoneCallDiscardReason duration:flags.1?int = PhoneCall;

 phoneConnection#9d4c17c0 id:long ip:string ipv6:string port:int peer_tag:bytes = PhoneConnection;
+phoneConnectionWebrtc#635fe375 flags:# turn:flags.0?true stun:flags.1?true id:long ip:string ipv6:string port:int username:string password:string = PhoneConnection;

 phoneCallProtocol#fc878fc8 flags:# udp_p2p:flags.0?true udp_reflector:flags.1?true min_layer:int max_layer:int library_versions:Vector<string> = PhoneCallProtocol;

@ -1398,7 +1399,7 @@ updates.getState#edd4882a = updates.State;
 updates.getDifference#25939651 flags:# pts:int pts_total_limit:flags.0?int date:int qts:int = updates.Difference;
 updates.getChannelDifference#3173d78 flags:# force:flags.0?true channel:InputChannel filter:ChannelMessagesFilter pts:int limit:int = updates.ChannelDifference;

-photos.updateProfilePhoto#f0bb5152 id:InputPhoto = UserProfilePhoto;
+photos.updateProfilePhoto#72d4742c id:InputPhoto = photos.Photo;
 photos.uploadProfilePhoto#89f30f69 flags:# file:flags.0?InputFile video:flags.1?InputFile video_start_ts:flags.2?double = photos.Photo;
 photos.deletePhotos#87cf7f2f id:Vector<InputPhoto> = Vector<long>;
 photos.getUserPhotos#91cd32a8 user_id:InputUser offset:int max_id:long limit:int = photos.Photos;
@ -1511,4 +1512,4 @@ stats.getBroadcastStats#ab42441a flags:# dark:flags.0?true channel:InputChannel
 stats.loadAsyncGraph#621d5fa0 flags:# token:string x:flags.0?long = StatsGraph;
 stats.getMegagroupStats#dcdf8607 flags:# dark:flags.0?true channel:InputChannel = stats.MegagroupStats;

-// LAYER 116
+// LAYER 117
--- a/Telegram/Resources/uwp/AppX/AppxManifest.xml
+++ b/Telegram/Resources/uwp/AppX/AppxManifest.xml
@ -9,7 +9,7 @@
  <Identity Name="TelegramMessengerLLP.TelegramDesktop"
    ProcessorArchitecture="ARCHITECTURE"
    Publisher="CN=536BC709-8EE1-4478-AF22-F0F0F26FF64A"
-    Version="2.2.0.0" />
+    Version="2.3.2.0" />
  <Properties>
    <DisplayName>Telegram Desktop</DisplayName>
    <PublisherDisplayName>Telegram FZ-LLC</PublisherDisplayName>
--- a/Telegram/Resources/winrc/Telegram.rc
+++ b/Telegram/Resources/winrc/Telegram.rc
@ -44,8 +44,8 @@ IDI_ICON1               ICON                    "..\\art\\icon256.ico"
 //

 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,2,0,0
- PRODUCTVERSION 2,2,0,0
+ FILEVERSION 2,3,2,0
+ PRODUCTVERSION 2,3,2,0
 FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
 FILEFLAGS 0x1L
@ -62,10 +62,10 @@ BEGIN
        BEGIN
            VALUE "CompanyName", "Telegram FZ-LLC"
            VALUE "FileDescription", "Telegram Desktop"
-            VALUE "FileVersion", "2.2.0.0"
+            VALUE "FileVersion", "2.3.2.0"
            VALUE "LegalCopyright", "Copyright (C) 2014-2020"
            VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "2.2.0.0"
+            VALUE "ProductVersion", "2.3.2.0"
        END
    END
    BLOCK "VarFileInfo"
--- a/Telegram/Resources/winrc/Updater.rc
+++ b/Telegram/Resources/winrc/Updater.rc
@ -35,8 +35,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //

 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,2,0,0
- PRODUCTVERSION 2,2,0,0
+ FILEVERSION 2,3,2,0
+ PRODUCTVERSION 2,3,2,0
 FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
 FILEFLAGS 0x1L
@ -53,10 +53,10 @@ BEGIN
        BEGIN
            VALUE "CompanyName", "Telegram FZ-LLC"
            VALUE "FileDescription", "Telegram Desktop Updater"
-            VALUE "FileVersion", "2.2.0.0"
+            VALUE "FileVersion", "2.3.2.0"
            VALUE "LegalCopyright", "Copyright (C) 2014-2020"
            VALUE "ProductName", "Telegram Desktop"
-            VALUE "ProductVersion", "2.2.0.0"
+            VALUE "ProductVersion", "2.3.2.0"
        END
    END
    BLOCK "VarFileInfo"
--- a/Telegram/SourceFiles/api/api_toggling_media.cpp
+++ b/Telegram/SourceFiles/api/api_toggling_media.cpp
@ -0,0 +1,117 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "api/api_toggling_media.h"
+
+#include "apiwrap.h"
+#include "data/data_document.h"
+#include "data/data_file_origin.h"
+#include "data/data_session.h"
+#include "data/stickers/data_stickers.h"
+#include "main/main_session.h"
+
+namespace Api {
+namespace {
+
+template <typename ToggleRequest, typename DoneCallback>
+void ToggleExistingMedia(
+		not_null<DocumentData*> document,
+		Data::FileOrigin origin,
+		ToggleRequest toggleRequest,
+		DoneCallback &&done) {
+	const auto api = &document->owner().session().api();
+
+	auto performRequest = [=](const auto &repeatRequest) -> void {
+		const auto usedFileReference = document->fileReference();
+		api->request(std::move(
+			toggleRequest
+		)).done([=](const MTPBool &result) {
+			if (mtpIsTrue(result)) {
+				done();
+			}
+		}).fail([=](const RPCError &error) {
+			if (error.code() == 400
+				&& error.type().startsWith(u"FILE_REFERENCE_"_q)) {
+				auto refreshed = [=](const Data::UpdatedFileReferences &d) {
+					if (document->fileReference() != usedFileReference) {
+						repeatRequest(repeatRequest);
+					}
+				};
+				api->refreshFileReference(origin, std::move(refreshed));
+			}
+		}).send();
+	};
+	performRequest(performRequest);
+}
+
+} // namespace
+
+void ToggleFavedSticker(
+		not_null<DocumentData*> document,
+		Data::FileOrigin origin) {
+	ToggleFavedSticker(
+		document,
+		std::move(origin),
+		!document->owner().stickers().isFaved(document));
+}
+
+void ToggleFavedSticker(
+		not_null<DocumentData*> document,
+		Data::FileOrigin origin,
+		bool faved) {
+	if (faved && !document->sticker()) {
+		return;
+	}
+	ToggleExistingMedia(
+		document,
+		std::move(origin),
+		MTPmessages_FaveSticker(document->mtpInput(), MTP_bool(!faved)),
+		[=] { document->owner().stickers().setFaved(document, faved); });
+}
+
+void ToggleRecentSticker(
+		not_null<DocumentData*> document,
+		Data::FileOrigin origin,
+		bool saved) {
+	if (!document->sticker()) {
+		return;
+	}
+	auto done = [=] {
+		if (!saved) {
+			document->owner().stickers().removeFromRecentSet(document);
+		}
+	};
+	ToggleExistingMedia(
+		document,
+		std::move(origin),
+		MTPmessages_SaveRecentSticker(
+			MTP_flags(MTPmessages_SaveRecentSticker::Flag(0)),
+			document->mtpInput(),
+			MTP_bool(!saved)),
+		std::move(done));
+}
+
+void ToggleSavedGif(
+		not_null<DocumentData*> document,
+		Data::FileOrigin origin,
+		bool saved) {
+	if (saved && !document->isGifv()) {
+		return;
+	}
+	auto done = [=] {
+		if (saved) {
+			document->owner().stickers().addSavedGif(document);
+		}
+	};
+	ToggleExistingMedia(
+		document,
+		std::move(origin),
+		MTPmessages_SaveGif(document->mtpInput(), MTP_bool(!saved)),
+		std::move(done));
+}
+
+} // namespace Api
--- a/Telegram/SourceFiles/api/api_toggling_media.h
+++ b/Telegram/SourceFiles/api/api_toggling_media.h
@ -0,0 +1,31 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+namespace Api {
+
+void ToggleFavedSticker(
+	not_null<DocumentData*> document,
+	Data::FileOrigin origin);
+
+void ToggleFavedSticker(
+	not_null<DocumentData*> document,
+	Data::FileOrigin origin,
+	bool faved);
+
+void ToggleRecentSticker(
+	not_null<DocumentData*> document,
+	Data::FileOrigin origin,
+	bool saved);
+
+void ToggleSavedGif(
+	not_null<DocumentData*> document,
+	Data::FileOrigin origin,
+	bool saved);
+
+} // namespace Api
--- a/Telegram/SourceFiles/api/api_updates.cpp
+++ b/Telegram/SourceFiles/api/api_updates.cpp
@ -1726,8 +1726,9 @@ void Updates::feedUpdate(const MTPUpdate &update) {
 		auto &d = update.c_updateEncryptedMessagesRead();
 	} break;

-	case mtpc_updatePhoneCall: {
-		Core::App().calls().handleUpdate(&session(), update.c_updatePhoneCall());
+	case mtpc_updatePhoneCall:
+	case mtpc_updatePhoneCallSignalingData: {
+		Core::App().calls().handleUpdate(&session(), update);
 	} break;

 	case mtpc_updateUserBlocked: {
--- a/Telegram/SourceFiles/apiwrap.cpp
+++ b/Telegram/SourceFiles/apiwrap.cpp
@ -2936,72 +2936,6 @@ std::vector<not_null<DocumentData*>> *ApiWrap::stickersByEmoji(
 	return nullptr;
 }

-void ApiWrap::toggleFavedSticker(
-		not_null<DocumentData*> document,
-		Data::FileOrigin origin,
-		bool faved) {
-	if (faved && !document->sticker()) {
-		return;
-	}
-
-	auto performRequest = [=](const auto &repeatRequest) -> void {
-		const auto usedFileReference = document->fileReference();
-		request(MTPmessages_FaveSticker(
-			document->mtpInput(),
-			MTP_bool(!faved)
-		)).done([=](const MTPBool &result) {
-			if (mtpIsTrue(result)) {
-				_session->data().stickers().setFaved(document, faved);
-			}
-		}).fail([=](const RPCError &error) {
-			if (error.code() == 400
-				&& error.type().startsWith(qstr("FILE_REFERENCE_"))) {
-				auto refreshed = [=](const UpdatedFileReferences &data) {
-					if (document->fileReference() != usedFileReference) {
-						repeatRequest(repeatRequest);
-					}
-				};
-				refreshFileReference(origin, std::move(refreshed));
-			}
-		}).send();
-	};
-	performRequest(performRequest);
-}
-
-void ApiWrap::toggleSavedGif(
-		not_null<DocumentData*> document,
-		Data::FileOrigin origin,
-		bool saved) {
-	if (saved && !document->isGifv()) {
-		return;
-	}
-
-	auto performRequest = [=](const auto &repeatRequest) -> void {
-		const auto usedFileReference = document->fileReference();
-		request(MTPmessages_SaveGif(
-			document->mtpInput(),
-			MTP_bool(!saved)
-		)).done([=](const MTPBool &result) {
-			if (mtpIsTrue(result)) {
-				if (saved) {
-					_session->data().stickers().addSavedGif(document);
-				}
-			}
-		}).fail([=](const RPCError &error) {
-			if (error.code() == 400
-				&& error.type().startsWith(qstr("FILE_REFERENCE_"))) {
-				auto refreshed = [=](const UpdatedFileReferences &data) {
-					if (document->fileReference() != usedFileReference) {
-						repeatRequest(repeatRequest);
-					}
-				};
-				refreshFileReference(origin, std::move(refreshed));
-			}
-		}).send();
-	};
-	performRequest(performRequest);
-}
-
 void ApiWrap::requestStickers(TimeId now) {
 	if (!_session->data().stickers().updateNeeded(now)
 		|| _stickersUpdateRequest) {
@ -4918,8 +4852,8 @@ void ApiWrap::clearPeerPhoto(not_null<PhotoData*> photo) {
 	if (self->userpicPhotoId() == photo->id) {
 		request(MTPphotos_UpdateProfilePhoto(
 			MTP_inputPhotoEmpty()
-		)).done([=](const MTPUserProfilePhoto &result) {
-			self->setPhoto(result);
+		)).done([=](const MTPphotos_Photo &result) {
+			self->setPhoto(MTP_userProfilePhotoEmpty());
 		}).send();
 	} else if (photo->peer && photo->peer->userpicPhotoId() == photo->id) {
 		const auto applier = [=](const MTPUpdates &result) {
--- a/Telegram/SourceFiles/apiwrap.h
+++ b/Telegram/SourceFiles/apiwrap.h
@ -275,14 +275,6 @@ public:
 		const MTPInputStickerSet &set);
 	std::vector<not_null<DocumentData*>> *stickersByEmoji(
 		not_null<EmojiPtr> emoji);
-	void toggleFavedSticker(
-		not_null<DocumentData*> document,
-		Data::FileOrigin origin,
-		bool faved);
-	void toggleSavedGif(
-		not_null<DocumentData*> document,
-		Data::FileOrigin origin,
-		bool saved);

 	void joinChannel(not_null<ChannelData*> channel);
 	void leaveChannel(not_null<ChannelData*> channel);
--- a/Telegram/SourceFiles/boxes/create_poll_box.cpp
+++ b/Telegram/SourceFiles/boxes/create_poll_box.cpp
@ -24,6 +24,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/core_settings.h"
 #include "chat_helpers/emoji_suggestions_widget.h"
 #include "chat_helpers/message_field.h"
+#include "chat_helpers/send_context_menu.h"
 #include "history/view/history_view_schedule_box.h"
 #include "settings/settings_common.h"
 #include "base/unique_qptr.h"
@ -1058,19 +1059,19 @@ object_ptr<Ui::RpWidget> CreatePollBox::setupContent() {
 			*error &= ~Error::Solution;
 		}
 	};
-	const auto showError = [=](const QString &text) {
-		Ui::Toast::Show(text);
+	const auto showError = [](tr::phrase<> text) {
+		Ui::Toast::Show(text(tr::now));
 	};
 	const auto send = [=](Api::SendOptions sendOptions) {
 		collectError();
 		if (*error & Error::Question) {
-			showError(tr::lng_polls_choose_question(tr::now));
+			showError(tr::lng_polls_choose_question);
 			question->setFocus();
 		} else if (*error & Error::Options) {
-			showError(tr::lng_polls_choose_answers(tr::now));
+			showError(tr::lng_polls_choose_answers);
 			options->focusFirst();
 		} else if (*error & Error::Correct) {
-			showError(tr::lng_polls_choose_correct(tr::now));
+			showError(tr::lng_polls_choose_correct);
 		} else if (*error & Error::Solution) {
 			solution->showError();
 		} else if (!*error) {
@ -1078,15 +1079,13 @@ object_ptr<Ui::RpWidget> CreatePollBox::setupContent() {
 		}
 	};
 	const auto sendSilent = [=] {
-		auto options = Api::SendOptions();
-		options.silent = true;
-		send(options);
+		send({ .silent = true });
 	};
 	const auto sendScheduled = [=] {
 		Ui::show(
 			HistoryView::PrepareScheduleBox(
 				this,
-				SendMenuType::Scheduled,
+				SendMenu::Type::Scheduled,
 				send),
 			Ui::LayerOption::KeepOther);
 	};
@ -1101,15 +1100,22 @@ object_ptr<Ui::RpWidget> CreatePollBox::setupContent() {
 		FocusAtEnd(question);
 	}, lifetime());

+	const auto isNormal = (_sendType == Api::SendType::Normal);
+	const auto isScheduled = (_sendType == Api::SendType::Scheduled);
+
 	const auto submit = addButton(
-		tr::lng_polls_create_button(),
-		[=] { send({}); });
-	if (_sendType == Api::SendType::Normal) {
+		isNormal
+			? tr::lng_polls_create_button()
+			: tr::lng_schedule_button(),
+		[=] { isNormal ? send({}) : sendScheduled(); });
+	if (isNormal || isScheduled) {
 		const auto sendMenuType = [=] {
 			collectError();
-			return *error ? SendMenuType::Disabled : SendMenuType::Scheduled;
+			return (*error || isScheduled)
+				? SendMenu::Type::Disabled
+				: SendMenu::Type::Scheduled;
 		};
-		SetupSendMenuAndShortcuts(
+		SendMenu::SetupMenuAndShortcuts(
 			submit.data(),
 			sendMenuType,
 			sendSilent,
--- a/Telegram/SourceFiles/boxes/edit_caption_box.cpp
+++ b/Telegram/SourceFiles/boxes/edit_caption_box.cpp
@ -91,25 +91,6 @@ auto ListFromMimeData(not_null<const QMimeData*> data) {
 	return result;
 }

-auto CheckMimeData(not_null<const QMimeData*> data, bool isAlbum) {
-	if (data->urls().size() > 1) {
-		return false;
-	} else if (data->hasImage()) {
-		return true;
-	}
-
-	if (isAlbum && data->hasUrls()) {
-		const auto url = data->urls().front();
-		if (url.isLocalFile()) {
-			using namespace Core;
-			const auto info = QFileInfo(Platform::File::UrlToLocal(url));
-			return IsMimeAcceptedForAlbum(MimeTypeForFile(info).name());
-		}
-	}
-
-	return true;
-}
-
 } // namespace

 EditCaptionBox::EditCaptionBox(
@ -663,7 +644,7 @@ void EditCaptionBox::prepare() {
 		if (action == Ui::InputField::MimeAction::Check) {
 			if (!data->hasText() && !_isAllowedEditMedia) {
 				return false;
-			} else if (CheckMimeData(data, _isAlbum)) {
+			} else if (Storage::ValidateDragData(data, _isAlbum)) {
 				return true;
 			}
 			return data->hasText();
@ -766,7 +747,9 @@ void EditCaptionBox::setupEmojiPanel() {

 void EditCaptionBox::setupDragArea() {
 	auto enterFilter = [=](not_null<const QMimeData*> data) {
-		return !_isAllowedEditMedia ? false : CheckMimeData(data, _isAlbum);
+		return !_isAllowedEditMedia
+			? false
+			: Storage::ValidateDragData(data, _isAlbum);
 	};
 	// Avoid both drag areas appearing at one time.
 	auto computeState = [=](const QMimeData *data) {
--- a/Telegram/SourceFiles/boxes/send_files_box.cpp
+++ b/Telegram/SourceFiles/boxes/send_files_box.cpp
@ -15,6 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_session.h"
 #include "mtproto/mtproto_config.h"
 #include "chat_helpers/message_field.h"
+#include "chat_helpers/send_context_menu.h"
 #include "chat_helpers/emoji_suggestions_widget.h"
 #include "chat_helpers/tabbed_panel.h"
 #include "chat_helpers/tabbed_selector.h"
@ -1666,7 +1667,7 @@ SendFilesBox::SendFilesBox(
 	CompressConfirm compressed,
 	SendLimit limit,
 	Api::SendType sendType,
-	SendMenuType sendMenuType)
+	SendMenu::Type sendMenuType)
 : _controller(controller)
 , _sendType(sendType)
 , _list(std::move(list))
@ -1836,7 +1837,7 @@ void SendFilesBox::setupShadows(
 void SendFilesBox::prepare() {
 	_send = addButton(tr::lng_send_button(), [=] { send({}); });
 	if (_sendType == Api::SendType::Normal) {
-		SetupSendMenuAndShortcuts(
+		SendMenu::SetupMenuAndShortcuts(
 			_send,
 			[=] { return _sendMenuType; },
 			[=] { sendSilent(); },
@ -1865,12 +1866,13 @@ void SendFilesBox::prepare() {
 void SendFilesBox::setupDragArea() {
 	// Avoid both drag areas appearing at one time.
 	auto computeState = [=](const QMimeData *data) {
+		using DragState = Storage::MimeDataState;
 		const auto state = Storage::ComputeMimeDataState(data);
-		return (state == Storage::MimeDataState::PhotoFiles)
-			? Storage::MimeDataState::Image
-			: (state == Storage::MimeDataState::Files)
-			// Temporary enable drag'n'drop only for images. TODO.
-			? Storage::MimeDataState::None
+		return (state == DragState::PhotoFiles)
+			? DragState::Image
+			: (state == DragState::Files
+				&& !Storage::ValidateDragData(data, true))
+			? DragState::None
 			: state;
 	};
 	const auto areas = DragArea::SetupDragAreaToContainer(
@ -2416,7 +2418,7 @@ void SendFilesBox::sendSilent() {

 void SendFilesBox::sendScheduled() {
 	const auto type = (_sendType == Api::SendType::ScheduledToUser)
-		? SendMenuType::ScheduledToUser
+		? SendMenu::Type::ScheduledToUser
 		: _sendMenuType;
 	const auto callback = [=](Api::SendOptions options) { send(options); };
 	Ui::show(
--- a/Telegram/SourceFiles/boxes/send_files_box.h
+++ b/Telegram/SourceFiles/boxes/send_files_box.h
@ -40,7 +40,9 @@ namespace Window {
 class SessionController;
 } // namespace Window

-enum class SendMenuType;
+namespace SendMenu {
+enum class Type;
+} // namespace SendMenu

 enum class SendFilesWay {
 	Album,
@ -62,7 +64,7 @@ public:
 		CompressConfirm compressed,
 		SendLimit limit,
 		Api::SendType sendType,
-		SendMenuType sendMenuType);
+		SendMenu::Type sendMenuType);

 	void setConfirmedCallback(
 		Fn<void(
@ -142,7 +144,7 @@ private:
 	CompressConfirm _compressConfirmInitial = CompressConfirm::None;
 	CompressConfirm _compressConfirm = CompressConfirm::None;
 	SendLimit _sendLimit = SendLimit::Many;
-	SendMenuType _sendMenuType = SendMenuType();
+	SendMenu::Type _sendMenuType = SendMenu::Type();

 	Fn<void(
 		Storage::PreparedList &&list,
--- a/Telegram/SourceFiles/boxes/share_box.cpp
+++ b/Telegram/SourceFiles/boxes/share_box.cpp
@ -23,6 +23,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/wrap/slide_wrap.h"
 #include "ui/text_options.h"
 #include "chat_helpers/message_field.h"
+#include "chat_helpers/send_context_menu.h"
 #include "history/history.h"
 #include "history/history_message.h"
 #include "history/view/history_view_schedule_box.h"
@ -426,13 +427,13 @@ void ShareBox::keyPressEvent(QKeyEvent *e) {
 	}
 }

-SendMenuType ShareBox::sendMenuType() const {
+SendMenu::Type ShareBox::sendMenuType() const {
 	const auto selected = _inner->selected();
 	return ranges::all_of(selected, HistoryView::CanScheduleUntilOnline)
-		? SendMenuType::ScheduledToUser
+		? SendMenu::Type::ScheduledToUser
 		: (selected.size() == 1 && selected.front()->isSelf())
-		? SendMenuType::Reminder
-		: SendMenuType::Scheduled;
+		? SendMenu::Type::Reminder
+		: SendMenu::Type::Scheduled;
 }

 void ShareBox::createButtons() {
@ -446,7 +447,7 @@ void ShareBox::createButtons() {
 		const auto send = addButton(tr::lng_share_confirm(), [=] {
 			submit({});
 		});
-		SetupSendMenuAndShortcuts(
+		SendMenu::SetupMenuAndShortcuts(
 			send,
 			[=] { return sendMenuType(); },
 			[=] { submitSilent(); },
--- a/Telegram/SourceFiles/boxes/share_box.h
+++ b/Telegram/SourceFiles/boxes/share_box.h
@ -14,7 +14,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/effects/round_checkbox.h"
 #include "mtproto/sender.h"

-enum class SendMenuType;
+namespace SendMenu {
+enum class Type;
+} // namespace SendMenu

 namespace Window {
 class SessionNavigation;
@ -85,7 +87,7 @@ private:
 	void goToChat(not_null<PeerData*> peer);
 	bool searchByUsername(bool useCache = false);

-	SendMenuType sendMenuType() const;
+	SendMenu::Type sendMenuType() const;

 	void scrollTo(Ui::ScrollToRequest request);
 	void needSearchByUsername();
--- a/Telegram/SourceFiles/calls/calls.style
+++ b/Telegram/SourceFiles/calls/calls.style
@ -14,12 +14,12 @@ CallSignalBars {
 	width: pixels;
 	radius: pixels;
 	skip: pixels;
+	min: pixels;
+	max: pixels;
 	color: color;
 	inactiveOpacity: double;
 }

-callWidth: 300px;
-callHeight: 470px;
 callRadius: 6px;
 callShadow: Shadow {
 	left: icon {{ "call_shadow_left", windowShadowFg }};
@ -34,16 +34,83 @@ callShadow: Shadow {
 	fallback: windowShadowFgFallback;
 }

-callButton: IconButton {
-	width: 72px;
-	height: 72px;
+callWidthMin: 300px;
+callHeightMin: 440px;
+callWidth: 720px;
+callHeight: 540px;

-	iconPosition: point(-1px, -1px);
+callBottomControlsHeight: 87px;
+
+CallBodyLayout {
+	height: pixels;
+	photoTop: pixels;
+	photoSize: pixels;
+	nameTop: pixels;
+	statusTop: pixels;
+	muteStroke: pixels;
+	muteSize: pixels;
+	mutePosition: point;
+}
+
+callBodyLayout: CallBodyLayout {
+	height: 284px;
+	photoTop: 21px;
+	photoSize: 160px;
+	nameTop: 221px;
+	statusTop: 254px;
+	muteStroke: 3px;
+	muteSize: 36px;
+	mutePosition: point(142px, 135px);
+}
+callBodyWithPreview: CallBodyLayout {
+	height: 185px;
+	photoTop: 21px;
+	photoSize: 100px;
+	nameTop: 132px;
+	statusTop: 163px;
+	muteStroke: 3px;
+	muteSize: 0px;
+	mutePosition: point(90px, 84px);
+}
+callMutedPeerIcon: icon {{ "calls_mute_userpic", callIconFg }};
+
+callOutgoingPreviewMin: size(360px, 120px);
+callOutgoingPreview: size(540px, 180px); // default, for height == callHeight.
+callOutgoingPreviewMax: size(1620px, 540px);
+callOutgoingDefaultSize: size(160px, 110px);
+
+callInnerPadding: 12px;
+
+callFingerprintPadding: margins(10px, 4px, 8px, 5px);
+callFingerprintSkip: 4px;
+callFingerprintSignalBarsSkip: 2px;
+callSignalBarsPadding: margins(8px, 9px, 11px, 5px);
+
+callFingerprintTop: 8px;
+callFingerprintBottom: -16px;
+
+callTooltipMutedIcon: icon{{ "calls_mute_tooltip", videoPlayIconFg }};
+callTooltipMutedIconPosition: point(10px, 5px);
+callTooltipPadding: margins(41px, 7px, 15px, 8px);
+
+callButton: IconButton {
+	width: 68px;
+	height: 79px;
+
+	iconPosition: point(-1px, 16px);

 	rippleAreaPosition: point(12px, 12px);
-	rippleAreaSize: 48px;
+	rippleAreaSize: 44px;
 	ripple: defaultRippleAnimation;
 }
+callButtonLabel: FlatLabel(defaultFlatLabel) {
+	textFg: callNameFg;
+	style: TextStyle(defaultTextStyle) {
+		font: font(11px);
+		linkFont: font(11px);
+		linkFontOver: font(11px underline);
+	}
+}

 callAnswer: CallButton {
 	button: IconButton(callButton) {
@ -56,6 +123,7 @@ callAnswer: CallButton {
 	angle: 135.;
 	outerRadius: 12px;
 	outerBg: callAnswerBgOuter;
+	label: callButtonLabel;
 }
 callHangup: CallButton {
 	button: IconButton(callButton) {
@ -66,30 +134,57 @@ callHangup: CallButton {
 	}
 	bg: callHangupBg;
 	outerBg: callHangupBg;
+	label: callButtonLabel;
 }
 callCancel: CallButton {
 	button: IconButton(callButton) {
-		icon: icon {{ "box_button_close", callCancelFg }};
+		icon: icon {{ "call_cancel", callIconFgActive }};
 		ripple: RippleAnimation(defaultRippleAnimation) {
-			color: callCancelRipple;
+			color: callIconActiveRipple;
 		}
 	}
-	bg: callCancelBg;
-	outerBg: callCancelBg;
+	bg: callIconBgActive;
+	outerBg: callIconBgActive;
+	label: callButtonLabel;
 }
-callMuteToggle: IconButton(callButton) {
+callMicrophoneMute: CallButton {
+	button: IconButton(callButton) {
 		icon: icon {{ "call_record_active", callIconFg }};
 		ripple: RippleAnimation(defaultRippleAnimation) {
 			color: callMuteRipple;
 		}
+	}
+	bg: callIconBg;
+	outerBg: callMuteRipple;
+	label: callButtonLabel;
 }
-callUnmuteIcon: icon {{ "call_record_muted", callIconFg }};
+callMicrophoneUnmute: CallButton(callMicrophoneMute) {
+	button: IconButton(callButton) {
+		icon: icon {{ "call_record_muted", callIconFgActive }};
+		ripple: RippleAnimation(defaultRippleAnimation) {
+			color: callIconActiveRipple;
+		}
+	}
+	bg: callIconBgActive;
+}
+callCameraMute: CallButton(callMicrophoneMute) {
+	button: IconButton(callButton) {
+		icon: icon {{ "call_camera_active", callIconFg }};
+		ripple: RippleAnimation(defaultRippleAnimation) {
+			color: callMuteRipple;
+		}
+	}
+}
+callCameraUnmute: CallButton(callMicrophoneUnmute) {
+	button: IconButton(callButton) {
+		icon: icon {{ "call_camera_muted", callIconFgActive }};
+		ripple: RippleAnimation(defaultRippleAnimation) {
+			color: callIconActiveRipple;
+		}
+	}
+}
+callBottomShadowSize: 124px;

-callControlsTop: 80px;
-callControlsSkip: 0px;
-callMuteRight: 8px;
-
-callNameTop: 15px;
 callName: FlatLabel(defaultFlatLabel) {
 	minWidth: 260px;
 	maxHeight: 30px;
@ -101,7 +196,6 @@ callName: FlatLabel(defaultFlatLabel) {
 		linkFontOver: font(21px semibold underline);
 	}
 }
-callStatusTop: 46px;
 callStatus: FlatLabel(defaultFlatLabel) {
 	minWidth: 260px;
 	maxHeight: 20px;
@ -113,10 +207,16 @@ callStatus: FlatLabel(defaultFlatLabel) {
 		linkFontOver: font(14px underline);
 	}
 }
-
-callFingerprintPadding: margins(9px, 4px, 9px, 5px);
-callFingerprintSkip: 3px;
-callFingerprintBottom: 8px;
+callRemoteAudioMute: FlatLabel(callStatus) {
+	minWidth: 0px;
+	textFg: videoPlayIconFg;
+	style: TextStyle(defaultTextStyle) {
+		font: font(12px);
+		linkFont: font(12px);
+		linkFontOver: font(12px underline);
+	}
+}
+callRemoteAudioMuteSkip: 12px;

 callBarHeight: 38px;
 callBarMuteToggle: IconButton {
@ -124,7 +224,7 @@ callBarMuteToggle: IconButton {
 	height: 38px;

 	icon: icon {{ "call_record_active", callBarFg }};
-	iconPosition: point(9px, 8px);
+	iconPosition: point(3px, 2px);

 	ripple: RippleAnimation(defaultRippleAnimation) {
 		color: callBarMuteRipple;
@ -137,7 +237,7 @@ callBarRightSkip: 12px;
 callBarSkip: 10px;
 callBarHangup: IconButton(callBarMuteToggle) {
 	icon: icon {{ "call_discard", callBarFg }};
-	iconPosition: point(9px, 11px);
+	iconPosition: point(3px, 1px);
 }
 callBarLabel: LabelSimple(defaultLabelSimple) {
 	font: semiboldFont;
@ -162,8 +262,8 @@ callReDial: IconButton {
 	width: 40px;
 	height: 56px;

-	icon: mainMenuCalls;
-	iconOver: mainMenuCallsOver;
+	icon: icon {{ "call_answer", menuIconFg }};
+	iconOver: icon {{ "call_answer", menuIconFgOver }};
 	iconPosition: point(-1px, -1px);

 	ripple: defaultRippleAnimation;
@ -171,6 +271,11 @@ callReDial: IconButton {
 	rippleAreaSize: 40px;
 }

+callCameraReDial: IconButton(callReDial) {
+	icon: icon {{ "call_camera_active", menuIconFg }};
+	iconOver: icon {{ "call_camera_active", menuIconFgOver }};
+}
+
 callRatingPadding: margins(24px, 12px, 24px, 0px);
 callRatingStar: IconButton {
 	width: 36px;
@ -200,14 +305,97 @@ callDebugLabel: FlatLabel(defaultFlatLabel) {
 callPanelDuration: 150;

 callPanelSignalBars: CallSignalBars {
-	width: 3px;
+	width: 2px;
 	radius: 1px;
-	skip: 1px;
+	skip: 2px;
+	min: 4px;
+	max: 10px;
 	color: callNameFg;
 	inactiveOpacity: 0.5;
 }
 callBarSignalBars: CallSignalBars(callPanelSignalBars) {
+	width: 3px;
+	skip: 1px;
+	min: 3px;
+	max: 12px;
 	color: callBarFg;
 }
-callSignalMargin: 8px;
-callSignalPadding: 4px;
+
+callTitleButton: IconButton {
+	width: 34px;
+	height: 30px;
+	iconPosition: point(0px, 0px);
+}
+callTitleMinimizeIcon: icon {
+	{ "calls_minimize_shadow", windowShadowFg },
+	{ "calls_minimize_main", callNameFg },
+};
+callTitleMinimizeIconOver: icon {
+	{ size(34px, 30px), callBgButton },
+	{ size(34px, 30px), callMuteRipple },
+	{ "calls_minimize_shadow", windowShadowFg },
+	{ "calls_minimize_main", callNameFg },
+};
+callTitleMaximizeIcon: icon {
+	{ "calls_maximize_shadow", windowShadowFg },
+	{ "calls_maximize_main", callNameFg },
+};
+callTitleMaximizeIconOver: icon {
+	{ size(34px, 30px), callBgButton },
+	{ size(34px, 30px), callMuteRipple },
+	{ "calls_maximize_shadow", windowShadowFg },
+	{ "calls_maximize_main", callNameFg },
+};
+callTitleRestoreIcon: icon {
+	{ "calls_restore_shadow", windowShadowFg },
+	{ "calls_restore_main", callNameFg },
+};
+callTitleRestoreIconOver: icon {
+	{ size(34px, 30px), callBgButton },
+	{ size(34px, 30px), callMuteRipple },
+	{ "calls_restore_shadow", windowShadowFg },
+	{ "calls_restore_main", callNameFg },
+};
+callTitleCloseIcon: icon {
+	{ "calls_close_shadow", windowShadowFg },
+	{ "calls_close_main", callNameFg },
+};
+callTitleCloseIconOver: icon {
+	{ size(34px, 30px), titleButtonCloseBgOver },
+	{ "calls_close_shadow", windowShadowFg },
+	{ "calls_close_main", titleButtonCloseFgOver },
+};
+callTitle: WindowTitle(defaultWindowTitle) {
+	height: 0px;
+	bg: callBgOpaque;
+	bgActive: callBgOpaque;
+	fg: transparent;
+	fgActive: transparent;
+	minimize: IconButton(callTitleButton) {
+		icon: callTitleMinimizeIcon;
+		iconOver: callTitleMinimizeIconOver;
+	}
+	minimizeIconActive: callTitleMinimizeIcon;
+	minimizeIconActiveOver: callTitleMinimizeIconOver;
+	maximize: IconButton(callTitleButton) {
+		icon: callTitleMaximizeIcon;
+		iconOver: callTitleMaximizeIconOver;
+	}
+	maximizeIconActive: callTitleMaximizeIcon;
+	maximizeIconActiveOver: callTitleMaximizeIconOver;
+	restoreIcon: callTitleRestoreIcon;
+	restoreIconOver: callTitleRestoreIconOver;
+	restoreIconActive: callTitleRestoreIcon;
+	restoreIconActiveOver: callTitleRestoreIconOver;
+	close: IconButton(callTitleButton) {
+		icon: callTitleCloseIcon;
+		iconOver: callTitleCloseIconOver;
+	}
+	closeIconActive: callTitleCloseIcon;
+	closeIconActiveOver: callTitleCloseIconOver;
+}
+callTitleShadow: icon {{ "calls_shadow_controls", windowShadowFg }};
+
+callErrorToast: Toast(defaultToast) {
+	minWidth: 240px;
+}
--- a/Telegram/SourceFiles/calls/calls_box_controller.cpp
+++ b/Telegram/SourceFiles/calls/calls_box_controller.cpp
@ -43,6 +43,11 @@ public:
 		Missed,
 	};

+	enum class CallType {
+		Voice,
+		Video,
+	};
+
 	bool canAddItem(not_null<const HistoryItem*> item) const {
 		return (ComputeType(item) == _type)
 			&& (ItemDateTime(item).date() == _date);
@ -91,7 +96,7 @@ public:
 		return 0;
 	}
 	QSize actionSize() const override {
-		return peer()->isUser() ? QSize(st::callReDial.width, st::callReDial.height) : QSize();
+		return peer()->isUser() ? QSize(_st->width, _st->height) : QSize();
 	}
 	QMargins actionMargins() const override {
 		return QMargins(
@ -111,10 +116,12 @@ public:
 private:
 	void refreshStatus() override;
 	static Type ComputeType(not_null<const HistoryItem*> item);
+	static CallType ComputeCallType(not_null<const HistoryItem*> item);

 	std::vector<not_null<HistoryItem*>> _items;
 	QDate _date;
 	Type _type;
+	not_null<const style::IconButton*> _st;

 	std::unique_ptr<Ui::RippleAnimation> _actionRipple;

@ -124,7 +131,10 @@ BoxController::Row::Row(not_null<HistoryItem*> item)
 : PeerListRow(item->history()->peer, item->id)
 , _items(1, item)
 , _date(ItemDateTime(item).date())
-, _type(ComputeType(item)) {
+, _type(ComputeType(item))
+, _st(ComputeCallType(item) == CallType::Voice
+		? &st::callReDial
+		: &st::callCameraReDial) {
 	refreshStatus();
 }

@ -154,12 +164,18 @@ void BoxController::Row::paintAction(
 		bool actionSelected) {
 	auto size = actionSize();
 	if (_actionRipple) {
-		_actionRipple->paint(p, x + st::callReDial.rippleAreaPosition.x(), y + st::callReDial.rippleAreaPosition.y(), outerWidth);
+		_actionRipple->paint(
+			p,
+			x + _st->rippleAreaPosition.x(),
+			y + _st->rippleAreaPosition.y(),
+			outerWidth);
 		if (_actionRipple->empty()) {
 			_actionRipple.reset();
 		}
 	}
-	st::callReDial.icon.paintInCenter(p, style::rtlrect(x, y, size.width(), size.height(), outerWidth));
+	_st->icon.paintInCenter(
+		p,
+		style::rtlrect(x, y, size.width(), size.height(), outerWidth));
 }

 void BoxController::Row::refreshStatus() {
@ -202,12 +218,28 @@ BoxController::Row::Type BoxController::Row::ComputeType(
 	return Type::In;
 }

+BoxController::Row::CallType BoxController::Row::ComputeCallType(
+		not_null<const HistoryItem*> item) {
+	if (auto media = item->media()) {
+		if (const auto call = media->call()) {
+			if (call->video) {
+				return CallType::Video;
+			}
+		}
+	}
+	return CallType::Voice;
+}
+
 void BoxController::Row::addActionRipple(QPoint point, Fn<void()> updateCallback) {
 	if (!_actionRipple) {
-		auto mask = Ui::RippleAnimation::ellipseMask(QSize(st::callReDial.rippleAreaSize, st::callReDial.rippleAreaSize));
-		_actionRipple = std::make_unique<Ui::RippleAnimation>(st::callReDial.ripple, std::move(mask), std::move(updateCallback));
+		auto mask = Ui::RippleAnimation::ellipseMask(
+			QSize(_st->rippleAreaSize, _st->rippleAreaSize));
+		_actionRipple = std::make_unique<Ui::RippleAnimation>(
+			_st->ripple,
+			std::move(mask),
+			std::move(updateCallback));
 	}
-	_actionRipple->add(point - st::callReDial.rippleAreaPosition);
+	_actionRipple->add(point - _st->rippleAreaPosition);
 }

 void BoxController::Row::stopLastActionRipple() {
@ -321,10 +353,10 @@ void BoxController::rowActionClicked(not_null<PeerListRow*> row) {
 	if (cConfirmBeforeCall()) {
 		Ui::show(Box<ConfirmBox>(tr::ktg_call_sure(tr::now), tr::ktg_call_button(tr::now), [=] {
 			Ui::hideLayer();
-			Core::App().calls().startOutgoingCall(user);
+			Core::App().calls().startOutgoingCall(user, false);
 		}));
 	} else {
-		Core::App().calls().startOutgoingCall(user);
+		Core::App().calls().startOutgoingCall(user, false);
 	}
 }

--- a/Telegram/SourceFiles/calls/calls_call.cpp
+++ b/Telegram/SourceFiles/calls/calls_call.cpp
@ -8,6 +8,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "calls/calls_call.h"

 #include "main/main_session.h"
+#include "main/main_account.h"
+#include "main/main_app_config.h"
 #include "apiwrap.h"
 #include "lang/lang_keys.h"
 #include "boxes/confirm_box.h"
@ -21,50 +23,97 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "media/audio/media_audio_track.h"
 #include "base/platform/base_platform_info.h"
 #include "calls/calls_panel.h"
-#include "calls/calls_controller.h"
+#include "webrtc/webrtc_video_track.h"
+#include "webrtc/webrtc_media_devices.h"
 #include "data/data_user.h"
 #include "data/data_session.h"
 #include "facades.h"

+#include <tgcalls/Instance.h>
+#include <tgcalls/VideoCaptureInterface.h>
+
+namespace tgcalls {
+class InstanceImpl;
+class InstanceImplLegacy;
+class InstanceImplReference;
+void SetLegacyGlobalServerConfig(const std::string &serverConfig);
+} // namespace tgcalls
+
 namespace Calls {
 namespace {

 constexpr auto kMinLayer = 65;
 constexpr auto kHangupTimeoutMs = 5000;
 constexpr auto kSha256Size = 32;
+const auto kDefaultVersion = "2.4.4"_q;
+
+#ifndef DESKTOP_APP_DISABLE_WEBRTC_INTEGRATION
+const auto RegisterTag = tgcalls::Register<tgcalls::InstanceImpl>();
+//const auto RegisterTagReference = tgcalls::Register<tgcalls::InstanceImplReference>();
+#endif // DESKTOP_APP_DISABLE_WEBRTC_INTEGRATION
+const auto RegisterTagLegacy = tgcalls::Register<tgcalls::InstanceImplLegacy>();

 void AppendEndpoint(
-		std::vector<TgVoipEndpoint> &list,
+		std::vector<tgcalls::Endpoint> &list,
 		const MTPPhoneConnection &connection) {
 	connection.match([&](const MTPDphoneConnection &data) {
 		if (data.vpeer_tag().v.length() != 16) {
 			return;
 		}
-#ifdef Q_OS_WIN
-		auto endpoint = TgVoipEndpoint();
-		endpoint.endpointId = (int64_t)data.vid().v;
-
-		endpoint.host = TgVoipEdpointHost();
-		endpoint.host.ipv4 = data.vip().v.toStdString();
-		endpoint.host.ipv6 = data.vipv6().v.toStdString();
-		
-		endpoint.port = (uint16_t)data.vport().v;
-		endpoint.type = TgVoipEndpointType::UdpRelay;
-#else
-		auto endpoint = TgVoipEndpoint{
+		tgcalls::Endpoint endpoint = {
 			.endpointId = (int64_t)data.vid().v,
-			.host = TgVoipEdpointHost{
+			.host = tgcalls::EndpointHost{
 				.ipv4 = data.vip().v.toStdString(),
 				.ipv6 = data.vipv6().v.toStdString() },
 			.port = (uint16_t)data.vport().v,
-			.type = TgVoipEndpointType::UdpRelay
+			.type = tgcalls::EndpointType::UdpRelay,
 		};
-#endif
 		const auto tag = data.vpeer_tag().v;
 		if (tag.size() >= 16) {
 			memcpy(endpoint.peerTag, tag.data(), 16);
 		}
 		list.push_back(std::move(endpoint));
+	}, [&](const MTPDphoneConnectionWebrtc &data) {
+	});
+}
+
+void AppendServer(
+		std::vector<tgcalls::RtcServer> &list,
+		const MTPPhoneConnection &connection) {
+	connection.match([&](const MTPDphoneConnection &data) {
+	}, [&](const MTPDphoneConnectionWebrtc &data) {
+		const auto host = qs(data.vip());
+		const auto hostv6 = qs(data.vipv6());
+		const auto port = uint16_t(data.vport().v);
+		if (data.is_stun()) {
+			const auto pushStun = [&](const QString &host) {
+				if (host.isEmpty()) {
+					return;
+				}
+				list.push_back(tgcalls::RtcServer{
+					.host = host.toStdString(),
+					.port = port,
+					.isTurn = false
+				});
+			};
+			pushStun(host);
+			pushStun(hostv6);
+		}
+		const auto username = qs(data.vusername());
+		const auto password = qs(data.vpassword());
+		if (data.is_turn() && !username.isEmpty() && !password.isEmpty()) {
+			const auto pushTurn = [&](const QString &host) {
+				list.push_back(tgcalls::RtcServer{
+					.host = host.toStdString(),
+					.port = port,
+					.login = username.toStdString(),
+					.password = password.toStdString(),
+					.isTurn = true,
+				});
+			};
+			pushTurn(host);
+			pushTurn(hostv6);
+		}
 	});
 }

@ -83,10 +132,6 @@ uint64 ComputeFingerprint(bytes::const_span authKey) {
 		| (gsl::to_integer<uint64>(hash[12]));
 }

-[[nodiscard]] std::vector<std::string> CollectVersions() {
-	return { TgVoip::getVersion() };
-}
-
 [[nodiscard]] QVector<MTPstring> WrapVersions(
 		const std::vector<std::string> &data) {
 	auto result = QVector<MTPstring>();
@ -98,28 +143,35 @@ uint64 ComputeFingerprint(bytes::const_span authKey) {
 }

 [[nodiscard]] QVector<MTPstring> CollectVersionsForApi() {
-	return WrapVersions(CollectVersions());
+	return WrapVersions(tgcalls::Meta::Versions() | ranges::action::reverse);
+}
+
+[[nodiscard]] Webrtc::VideoState StartVideoState(bool enabled) {
+	using State = Webrtc::VideoState;
+	return enabled ? State::Active : State::Inactive;
 }

 } // namespace

-Call::Delegate::~Delegate() = default;
-
 Call::Call(
 	not_null<Delegate*> delegate,
 	not_null<UserData*> user,
-	Type type)
+	Type type,
+	bool video)
 : _delegate(delegate)
 , _user(user)
 , _api(&_user->session().mtp())
-, _type(type) {
-	_discardByTimeoutTimer.setCallback([this] { hangup(); });
+, _type(type)
+, _videoIncoming(std::make_unique<Webrtc::VideoTrack>(StartVideoState(video)))
+, _videoOutgoing(std::make_unique<Webrtc::VideoTrack>(StartVideoState(video))) {
+	_discardByTimeoutTimer.setCallback([=] { hangup(); });

 	if (_type == Type::Outgoing) {
 		setState(State::Requesting);
 	} else {
 		startWaitingTrack();
 	}
+	setupOutgoingVideo();
 }

 void Call::generateModExpFirst(bytes::const_span randomSeed) {
@ -173,8 +225,11 @@ void Call::startOutgoing() {
 	Expects(_state.current() == State::Requesting);
 	Expects(_gaHash.size() == kSha256Size);

+	const auto flags = _videoCapture
+		? MTPphone_RequestCall::Flag::f_video
+		: MTPphone_RequestCall::Flag(0);
 	_api.request(MTPphone_RequestCall(
-		MTP_flags(0),
+		MTP_flags(flags),
 		_user->inputUser,
 		MTP_int(rand_value<int32>()),
 		MTP_bytes(_gaHash),
@ -182,7 +237,7 @@ void Call::startOutgoing() {
 			MTP_flags(MTPDphoneCallProtocol::Flag::f_udp_p2p
 				| MTPDphoneCallProtocol::Flag::f_udp_reflector),
 			MTP_int(kMinLayer),
-			MTP_int(TgVoip::getConnectionMaxLayer()),
+			MTP_int(tgcalls::Meta::MaxLayer()),
 			MTP_vector(CollectVersionsForApi()))
 	)).done([=](const MTPphone_PhoneCall &result) {
 		Expects(result.type() == mtpc_phone_phoneCall);
@ -234,7 +289,7 @@ void Call::startIncoming() {
 }

 void Call::answer() {
-	_delegate->requestMicrophonePermissionOrFail(crl::guard(this, [=] {
+	_delegate->requestPermissionsOrFail(crl::guard(this, [=] {
 		actuallyAnswer();
 	}));
 }
@ -263,10 +318,11 @@ void Call::actuallyAnswer() {
 			MTP_flags(MTPDphoneCallProtocol::Flag::f_udp_p2p
 				| MTPDphoneCallProtocol::Flag::f_udp_reflector),
 			MTP_int(kMinLayer),
-			MTP_int(TgVoip::getConnectionMaxLayer()),
+			MTP_int(tgcalls::Meta::MaxLayer()),
 			MTP_vector(CollectVersionsForApi()))
 	)).done([=](const MTPphone_PhoneCall &result) {
 		Expects(result.type() == mtpc_phone_phoneCall);
+
 		auto &call = result.c_phone_phoneCall();
 		_user->session().data().processUsers(call.vusers());
 		if (call.vphone_call().type() != mtpc_phoneCallWaiting) {
@ -282,12 +338,61 @@ void Call::actuallyAnswer() {
 	}).send();
 }

-void Call::setMute(bool mute) {
-	_mute = mute;
-	if (_controller) {
-		_controller->setMuteMicrophone(_mute);
+void Call::setMuted(bool mute) {
+	_muted = mute;
+	if (_instance) {
+		_instance->setMuteMicrophone(mute);
 	}
-	_muteChanged.notify(_mute);
+}
+
+void Call::setupOutgoingVideo() {
+	static const auto hasDevices = [] {
+		return !Webrtc::GetVideoInputList().empty();
+	};
+	const auto started = _videoOutgoing->state();
+	if (!hasDevices()) {
+		_videoOutgoing->setState(Webrtc::VideoState::Inactive);
+	}
+	_videoOutgoing->stateValue(
+	) | rpl::start_with_next([=](Webrtc::VideoState state) {
+		if (state != Webrtc::VideoState::Inactive && !hasDevices()) {
+			_errors.fire({ ErrorType::NoCamera });
+			_videoOutgoing->setState(Webrtc::VideoState::Inactive);
+		} else if (_state.current() != State::Established
+			&& state != started
+			&& !_videoCapture) {
+			_errors.fire({ ErrorType::NotStartedCall });
+			_videoOutgoing->setState(started);
+		} else if (state != Webrtc::VideoState::Inactive
+			&& _instance
+			&& !_instance->supportsVideo()) {
+			_errors.fire({ ErrorType::NotVideoCall });
+			_videoOutgoing->setState(Webrtc::VideoState::Inactive);
+		} else if (state != Webrtc::VideoState::Inactive) {
+			// Paused not supported right now.
+#ifndef DESKTOP_APP_DISABLE_WEBRTC_INTEGRATION
+			Assert(state == Webrtc::VideoState::Active);
+			if (!_videoCapture) {
+				_videoCapture = _delegate->getVideoCapture();
+				_videoCapture->setOutput(_videoOutgoing->sink());
+			}
+			if (_instance) {
+				_instance->setVideoCapture(_videoCapture);
+			}
+			_videoCapture->setState(tgcalls::VideoState::Active);
+#endif // DESKTOP_APP_DISABLE_WEBRTC_INTEGRATION
+		} else if (_videoCapture) {
+			_videoCapture->setState(tgcalls::VideoState::Inactive);
+		}
+	}, _lifetime);
+}
+
+not_null<Webrtc::VideoTrack*> Call::videoIncoming() const {
+	return _videoIncoming.get();
+}
+
+not_null<Webrtc::VideoTrack*> Call::videoOutgoing() const {
+	return _videoOutgoing.get();
 }

 crl::time Call::getDurationMs() const {
@ -311,7 +416,7 @@ void Call::redial() {
 	if (_state.current() != State::Busy) {
 		return;
 	}
-	Assert(_controller == nullptr);
+	Assert(_instance == nullptr);
 	_type = Type::Outgoing;
 	setState(State::Requesting);
 	_answerAfterDhConfigReceived = false;
@ -320,7 +425,9 @@ void Call::redial() {
 }

 QString Call::getDebugLog() const {
-	return QString::fromStdString(_controller->getDebugInfo());
+	return _instance
+		? QString::fromStdString(_instance->getDebugInfo())
+		: QString();
 }

 void Call::startWaitingTrack() {
@ -334,6 +441,21 @@ void Call::startWaitingTrack() {
 	_waitingTrack->playInLoop();
 }

+void Call::sendSignalingData(const QByteArray &data) {
+	_api.request(MTPphone_SendSignalingData(
+		MTP_inputPhoneCall(
+			MTP_long(_id),
+			MTP_long(_accessHash)),
+		MTP_bytes(data)
+	)).done([=](const MTPBool &result) {
+		if (!mtpIsTrue(result)) {
+			finish(FinishType::Failed);
+		}
+	}).fail([=](const RPCError &error) {
+		handleRequestError(error);
+	}).send();
+}
+
 float64 Call::getWaitingSoundPeakValue() const {
 	if (_waitingTrack) {
 		auto when = crl::now() + kSoundSampleMs / 4;
@ -372,6 +494,7 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
 			finish(FinishType::Failed);
 			return true;
 		}
+
 		_id = data.vid().v;
 		_accessHash = data.vaccess_hash().v;
 		auto gaHashBytes = bytes::make_span(data.vg_a_hash().v);
@ -416,7 +539,7 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
 		}
 		if (_type == Type::Incoming
 			&& _state.current() == State::ExchangingKeys
-			&& !_controller) {
+			&& !_instance) {
 			startConfirmedCall(data);
 		}
 	} return true;
@ -427,8 +550,8 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
 			return false;
 		}
 		if (data.is_need_debug()) {
-			auto debugLog = _controller
-				? _controller->getDebugInfo()
+			auto debugLog = _instance
+				? _instance->getDebugInfo()
 				: std::string();
 			if (!debugLog.empty()) {
 				user()->session().api().request(MTPphone_SaveCallDebug(
@ -474,11 +597,49 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
 	Unexpected("phoneCall type inside an existing call handleUpdate()");
 }

+void Call::updateRemoteMediaState(
+		tgcalls::AudioState audio,
+		tgcalls::VideoState video) {
+	_remoteAudioState = [&] {
+		using From = tgcalls::AudioState;
+		using To = RemoteAudioState;
+		switch (audio) {
+		case From::Active: return To::Active;
+		case From::Muted: return To::Muted;
+		}
+		Unexpected("Audio state in remoteMediaStateUpdated.");
+	}();
+	_videoIncoming->setState([&] {
+		using From = tgcalls::VideoState;
+		using To = Webrtc::VideoState;
+		switch (video) {
+		case From::Inactive: return To::Inactive;
+		case From::Paused: return To::Paused;
+		case From::Active: return To::Active;
+		}
+		Unexpected("Video state in remoteMediaStateUpdated.");
+	}());
+}
+
+bool Call::handleSignalingData(
+		const MTPDupdatePhoneCallSignalingData &data) {
+	if (data.vphone_call_id().v != _id || !_instance) {
+		return false;
+	}
+	auto prepared = ranges::view::all(
+		data.vdata().v
+	) | ranges::view::transform([](char byte) {
+		return static_cast<uint8_t>(byte);
+	}) | ranges::to_vector;
+	_instance->receiveSignalingData(std::move(prepared));
+	return true;
+}
+
 void Call::confirmAcceptedCall(const MTPDphoneCallAccepted &call) {
 	Expects(_type == Type::Outgoing);

 	if (_state.current() == State::ExchangingKeys
-		|| _controller) {
+		|| _instance) {
 		LOG(("Call Warning: Unexpected confirmAcceptedCall."));
 		return;
 	}
@ -506,9 +667,9 @@ void Call::confirmAcceptedCall(const MTPDphoneCallAccepted &call) {
 			MTP_flags(MTPDphoneCallProtocol::Flag::f_udp_p2p
 				| MTPDphoneCallProtocol::Flag::f_udp_reflector),
 			MTP_int(kMinLayer),
-			MTP_int(TgVoip::getConnectionMaxLayer()),
+			MTP_int(tgcalls::Meta::MaxLayer()),
 			MTP_vector(CollectVersionsForApi()))
-	)).done([this](const MTPphone_PhoneCall &result) {
+	)).done([=](const MTPphone_PhoneCall &result) {
 		Expects(result.type() == mtpc_phone_phoneCall);

 		auto &call = result.c_phone_phoneCall();
@ -520,7 +681,7 @@ void Call::confirmAcceptedCall(const MTPDphoneCallAccepted &call) {
 		}

 		createAndStartController(call.vphone_call().c_phoneCall());
-	}).fail([this](const RPCError &error) {
+	}).fail([=](const RPCError &error) {
 		handleRequestError(error);
 	}).send();
 }
@ -551,119 +712,150 @@ void Call::startConfirmedCall(const MTPDphoneCall &call) {

 void Call::createAndStartController(const MTPDphoneCall &call) {
 	_discardByTimeoutTimer.cancel();
-	if (!checkCallFields(call)) {
+	if (!checkCallFields(call) || _authKey.size() != 256) {
 		return;
 	}

 	const auto &protocol = call.vprotocol().c_phoneCallProtocol();
 	const auto &serverConfig = _user->session().serverConfig();

-	TgVoipConfig config;
-	config.dataSaving = TgVoipDataSaving::Never;
-	config.enableAEC = !Platform::IsMac10_7OrGreater();
-	config.enableNS = true;
-	config.enableAGC = true;
-	config.enableVolumeControl = true;
-	config.initializationTimeout = serverConfig.callConnectTimeoutMs / 1000.;
-	config.receiveTimeout = serverConfig.callPacketTimeoutMs / 1000.;
-	config.enableP2P = call.is_p2p_allowed();
-	config.maxApiLayer = protocol.vmax_layer().v;
+	auto encryptionKeyValue = std::make_shared<std::array<uint8_t, 256>>();
+	memcpy(encryptionKeyValue->data(), _authKey.data(), 256);
+
+	const auto &settings = Core::App().settings();
+
+	const auto weak = base::make_weak(this);
+	tgcalls::Descriptor descriptor = {
+		.config = tgcalls::Config{
+			.initializationTimeout = serverConfig.callConnectTimeoutMs / 1000.,
+			.receiveTimeout = serverConfig.callPacketTimeoutMs / 1000.,
+			.dataSaving = tgcalls::DataSaving::Never,
+			.enableP2P = call.is_p2p_allowed(),
+			.enableAEC = !Platform::IsMac10_7OrGreater(),
+			.enableNS = true,
+			.enableAGC = true,
+			.enableVolumeControl = true,
+			.maxApiLayer = protocol.vmax_layer().v,
+		},
+		.encryptionKey = tgcalls::EncryptionKey(
+			std::move(encryptionKeyValue),
+			(_type == Type::Outgoing)),
+		.mediaDevicesConfig = tgcalls::MediaDevicesConfig{
+			.audioInputId = settings.callInputDeviceId().toStdString(),
+			.audioOutputId = settings.callOutputDeviceId().toStdString(),
+			.inputVolume = 1.f,//settings.callInputVolume() / 100.f,
+			.outputVolume = 1.f,//settings.callOutputVolume() / 100.f,
+		},
+		.videoCapture = _videoCapture,
+		.stateUpdated = [=](tgcalls::State state) {
+			crl::on_main(weak, [=] {
+				handleControllerStateChange(state);
+			});
+		},
+		.signalBarsUpdated = [=](int count) {
+			crl::on_main(weak, [=] {
+				handleControllerBarCountChange(count);
+			});
+		},
+		.remoteMediaStateUpdated = [=](tgcalls::AudioState audio, tgcalls::VideoState video) {
+			crl::on_main(weak, [=] {
+				updateRemoteMediaState(audio, video);
+			});
+		},
+		.signalingDataEmitted = [=](const std::vector<uint8_t> &data) {
+			const auto bytes = QByteArray(
+				reinterpret_cast<const char*>(data.data()),
+				data.size());
+			crl::on_main(weak, [=] {
+				sendSignalingData(bytes);
+			});
+		},
+	};
 	if (Logs::DebugEnabled()) {
 		auto callLogFolder = cWorkingDir() + qsl("DebugLogs");
 		auto callLogPath = callLogFolder + qsl("/last_call_log.txt");
 		auto callLogNative = QDir::toNativeSeparators(callLogPath);
 #ifdef Q_OS_WIN
-		config.logPath = callLogNative.toStdWString();
+		descriptor.config.logPath = callLogNative.toStdWString();
 #else // Q_OS_WIN
 		const auto callLogUtf = QFile::encodeName(callLogNative);
-		config.logPath.resize(callLogUtf.size());
-		ranges::copy(callLogUtf, config.logPath.begin());
+		descriptor.config.logPath.resize(callLogUtf.size());
+		ranges::copy(callLogUtf, descriptor.config.logPath.begin());
 #endif // Q_OS_WIN
 		QFile(callLogPath).remove();
 		QDir().mkpath(callLogFolder);
 	}

-	auto endpoints = std::vector<TgVoipEndpoint>();
 	for (const auto &connection : call.vconnections().v) {
-		AppendEndpoint(endpoints, connection);
+		AppendEndpoint(descriptor.endpoints, connection);
+	}
+	for (const auto &connection : call.vconnections().v) {
+		AppendServer(descriptor.rtcServers, connection);
 	}

-	auto proxy = TgVoipProxy();
 	if (Global::UseProxyForCalls()
 		&& (Global::ProxySettings() == MTP::ProxyData::Settings::Enabled)) {
 		const auto &selected = Global::SelectedProxy();
-		if (selected.supportsCalls()) {
+		if (selected.supportsCalls() && !selected.host.isEmpty()) {
 			Assert(selected.type == MTP::ProxyData::Type::Socks5);
-			proxy.host = selected.host.toStdString();
-			proxy.port = selected.port;
-			proxy.login = selected.user.toStdString();
-			proxy.password = selected.password.toStdString();
+			descriptor.proxy = std::make_unique<tgcalls::Proxy>();
+			descriptor.proxy->host = selected.host.toStdString();
+			descriptor.proxy->port = selected.port;
+			descriptor.proxy->login = selected.user.toStdString();
+			descriptor.proxy->password = selected.password.toStdString();
 		}
 	}

-	auto encryptionKey = TgVoipEncryptionKey();
-	encryptionKey.isOutgoing = (_type == Type::Outgoing);
-	encryptionKey.value = ranges::view::all(
-		_authKey
-	) | ranges::view::transform([](bytes::type byte) {
-		return static_cast<uint8_t>(byte);
-	}) | ranges::to_vector;
+	const auto version = call.vprotocol().match([&](
+			const MTPDphoneCallProtocol &data) {
+		return data.vlibrary_versions().v;
+	}).value(0, MTP_bytes(kDefaultVersion)).v;

-	_controller = MakeController(
-		"2.4.4",
-		config,
-		TgVoipPersistentState(),
-		endpoints,
-		proxy.host.empty() ? nullptr : &proxy,
-		TgVoipNetworkType::Unknown,
-		encryptionKey);
-
-	const auto raw = _controller.get();
-	raw->setOnStateUpdated([=](TgVoipState state) {
-		handleControllerStateChange(raw, state);
-	});
-	raw->setOnSignalBarsUpdated([=](int count) {
-		handleControllerBarCountChange(count);
-	});
-	if (_mute) {
-		raw->setMuteMicrophone(_mute);
+	LOG(("Call Info: Creating instance with version '%1', allowP2P: %2"
+		).arg(QString::fromUtf8(version)
+		).arg(Logs::b(descriptor.config.enableP2P)));
+	_instance = tgcalls::Meta::Create(
+		version.toStdString(),
+		std::move(descriptor));
+	if (!_instance) {
+		LOG(("Call Error: Wrong library version: %1."
+			).arg(QString::fromUtf8(version)));
+		finish(FinishType::Failed);
+		return;
 	}
-	const auto &settings = Core::App().settings();
-	raw->setAudioOutputDevice(
-		settings.callOutputDeviceID().toStdString());
-	raw->setAudioInputDevice(
-		settings.callInputDeviceID().toStdString());
-	raw->setOutputVolume(settings.callOutputVolume() / 100.0f);
-	raw->setInputVolume(settings.callInputVolume() / 100.0f);
+
+	const auto raw = _instance.get();
+	if (_muted.current()) {
+		raw->setMuteMicrophone(_muted.current());
+	}
+
+	raw->setIncomingVideoOutput(_videoIncoming->sink());
 	raw->setAudioOutputDuckingEnabled(settings.callAudioDuckingEnabled());
 }

-void Call::handleControllerStateChange(
-		not_null<Controller*> controller,
-		TgVoipState state) {
-	// NB! Can be called from an arbitrary thread!
-	// This can be called from ~VoIPController()!
-
+void Call::handleControllerStateChange(tgcalls::State state) {
 	switch (state) {
-	case TgVoipState::WaitInit: {
+	case tgcalls::State::WaitInit: {
 		DEBUG_LOG(("Call Info: State changed to WaitingInit."));
-		setStateQueued(State::WaitingInit);
+		setState(State::WaitingInit);
 	} break;

-	case TgVoipState::WaitInitAck: {
+	case tgcalls::State::WaitInitAck: {
 		DEBUG_LOG(("Call Info: State changed to WaitingInitAck."));
-		setStateQueued(State::WaitingInitAck);
+		setState(State::WaitingInitAck);
 	} break;

-	case TgVoipState::Established: {
+	case tgcalls::State::Established: {
 		DEBUG_LOG(("Call Info: State changed to Established."));
-		setStateQueued(State::Established);
+		setState(State::Established);
 	} break;

-	case TgVoipState::Failed: {
-		auto error = QString::fromStdString(controller->getLastError());
+	case tgcalls::State::Failed: {
+		auto error = _instance
+			? QString::fromStdString(_instance->getLastError())
+			: QString();
 		LOG(("Call Info: State changed to Failed, error: %1.").arg(error));
-		setFailedQueued(error);
+		handleControllerError(error);
 	} break;

 	default: LOG(("Call Error: Unexpected state in handleStateChange: %1"
@ -672,19 +864,11 @@ void Call::handleControllerStateChange(
 }

 void Call::handleControllerBarCountChange(int count) {
-	// NB! Can be called from an arbitrary thread!
-	// This can be called from ~VoIPController()!
-
-	crl::on_main(this, [=] {
 	setSignalBarCount(count);
-	});
 }

 void Call::setSignalBarCount(int count) {
-	if (_signalBarCount != count) {
 	_signalBarCount = count;
-		_signalBarCountChanged.notify(count);
-	}
 }

 template <typename T>
@ -777,29 +961,36 @@ void Call::setState(State state) {
 	}
 }

-void Call::setCurrentAudioDevice(bool input, std::string deviceID) {
-	if (_controller) {
+void Call::setCurrentAudioDevice(bool input, const QString &deviceId) {
+	if (_instance) {
+		const auto id = deviceId.toStdString();
 		if (input) {
-			_controller->setAudioInputDevice(deviceID);
+			_instance->setAudioInputDevice(id);
 		} else {
-			_controller->setAudioOutputDevice(deviceID);
+			_instance->setAudioOutputDevice(id);
 		}
 	}
 }

+void Call::setCurrentVideoDevice(const QString &deviceId) {
+	if (_videoCapture) {
+		_videoCapture->switchToDevice(deviceId.toStdString());
+	}
+}
+
 void Call::setAudioVolume(bool input, float level) {
-	if (_controller) {
+	if (_instance) {
 		if (input) {
-			_controller->setInputVolume(level);
+			_instance->setInputVolume(level);
 		} else {
-			_controller->setOutputVolume(level);
+			_instance->setOutputVolume(level);
 		}
 	}
 }

 void Call::setAudioDuckingEnabled(bool enabled) {
-	if (_controller) {
-		_controller->setAudioOutputDuckingEnabled(enabled);
+	if (_instance) {
+		_instance->setAudioOutputDuckingEnabled(enabled);
 	}
 }

@ -830,10 +1021,14 @@ void Call::finish(FinishType type, const MTPPhoneCallDiscardReason &reason) {

 	setState(hangupState);
 	auto duration = getDurationMs() / 1000;
-	auto connectionId = _controller ? _controller->getPreferredRelayId() : 0;
+	auto connectionId = _instance ? _instance->getPreferredRelayId() : 0;
 	_finishByTimeoutTimer.call(kHangupTimeoutMs, [this, finalState] { setState(finalState); });
+	const auto flags = ((_videoIncoming->state() != Webrtc::VideoState::Inactive)
+		|| (_videoOutgoing->state() != Webrtc::VideoState::Inactive))
+		? MTPphone_DiscardCall::Flag::f_video
+		: MTPphone_DiscardCall::Flag(0);
 	_api.request(MTPphone_DiscardCall(
-		MTP_flags(0),
+		MTP_flags(flags),
 		MTP_inputPhoneCall(
 			MTP_long(_id),
 			MTP_long(_accessHash)),
@ -886,9 +1081,11 @@ void Call::handleControllerError(const QString &error) {
 }

 void Call::destroyController() {
-	if (_controller) {
+	if (_instance) {
+		const auto state = _instance->stop();
+
 		DEBUG_LOG(("Call Info: Destroying call controller.."));
-		_controller.reset();
+		_instance.reset();
 		DEBUG_LOG(("Call Info: Call controller destroyed."));
 	}
 	setSignalBarCount(kSignalBarFinished);
@ -899,7 +1096,7 @@ Call::~Call() {
 }

 void UpdateConfig(const std::string &data) {
-	TgVoip::setGlobalServerConfig(data);
+	tgcalls::SetLegacyGlobalServerConfig(data);
 }

 } // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_call.h
+++ b/Telegram/SourceFiles/calls/calls_call.h
@ -19,18 +19,40 @@ class Track;
 } // namespace Audio
 } // namespace Media

-enum class TgVoipState;
+namespace tgcalls {
+class Instance;
+class VideoCaptureInterface;
+enum class State;
+enum class VideoState;
+enum class AudioState;
+} // namespace tgcalls
+
+namespace Webrtc {
+enum class VideoState;
+class VideoTrack;
+} // namespace Webrtc

 namespace Calls {

-class Controller;
-
 struct DhConfig {
 	int32 version = 0;
 	int32 g = 0;
 	bytes::vector p;
 };

+enum class ErrorType {
+	NoCamera,
+	NoMicrophone,
+	NotStartedCall,
+	NotVideoCall,
+	Unknown,
+};
+
+struct Error {
+	ErrorType type = ErrorType::Unknown;
+	QString details;
+};
+
 class Call : public base::has_weak_ptr {
 public:
 	class Delegate {
@ -46,9 +68,11 @@ public:
 			Ended,
 		};
 		virtual void playSound(Sound sound) = 0;
-		virtual void requestMicrophonePermissionOrFail(Fn<void()> result) = 0;
+		virtual void requestPermissionsOrFail(Fn<void()> onSuccess) = 0;
+		virtual auto getVideoCapture()
+			-> std::shared_ptr<tgcalls::VideoCaptureInterface> = 0;

-		virtual ~Delegate();
+		virtual ~Delegate() = default;

 	};

@ -58,7 +82,7 @@ public:
 		Incoming,
 		Outgoing,
 	};
-	Call(not_null<Delegate*> delegate, not_null<UserData*> user, Type type);
+	Call(not_null<Delegate*> delegate, not_null<UserData*> user, Type type, bool video);

 	[[nodiscard]] Type type() const {
 		return _type;
@ -70,6 +94,7 @@ public:

 	void start(bytes::const_span random);
 	bool handleUpdate(const MTPPhoneCall &call);
+	bool handleSignalingData(const MTPDupdatePhoneCallSignalingData &data);

 	enum State {
 		Starting,
@ -88,28 +113,55 @@ public:
 		Ringing,
 		Busy,
 	};
-	State state() const {
+	[[nodiscard]] State state() const {
 		return _state.current();
 	}
-	rpl::producer<State> stateValue() const {
+	[[nodiscard]] rpl::producer<State> stateValue() const {
 		return _state.value();
 	}

+	[[nodiscard]] rpl::producer<Error> errors() const {
+		return _errors.events();
+	}
+
+	enum class RemoteAudioState {
+		Muted,
+		Active,
+	};
+	[[nodiscard]] RemoteAudioState remoteAudioState() const {
+		return _remoteAudioState.current();
+	}
+	[[nodiscard]] auto remoteAudioStateValue() const
+	-> rpl::producer<RemoteAudioState> {
+		return _remoteAudioState.value();
+	}
+
+	[[nodiscard]] Webrtc::VideoState remoteVideoState() const {
+		return _remoteVideoState.current();
+	}
+	[[nodiscard]] auto remoteVideoStateValue() const
+	-> rpl::producer<Webrtc::VideoState> {
+		return _remoteVideoState.value();
+	}
+
 	static constexpr auto kSignalBarStarting = -1;
 	static constexpr auto kSignalBarFinished = -2;
 	static constexpr auto kSignalBarCount = 4;
-	base::Observable<int> &signalBarCountChanged() {
-		return _signalBarCountChanged;
+	[[nodiscard]] rpl::producer<int> signalBarCountValue() const {
+		return _signalBarCount.value();
 	}

-	void setMute(bool mute);
-	bool isMute() const {
-		return _mute;
+	void setMuted(bool mute);
+	[[nodiscard]] bool muted() const {
+		return _muted.current();
 	}
-	base::Observable<bool> &muteChanged() {
-		return _muteChanged;
+	[[nodiscard]] rpl::producer<bool> mutedValue() const {
+		return _muted.value();
 	}

+	[[nodiscard]] not_null<Webrtc::VideoTrack*> videoIncoming() const;
+	[[nodiscard]] not_null<Webrtc::VideoTrack*> videoOutgoing() const;
+
 	crl::time getDurationMs() const;
 	float64 getWaitingSoundPeakValue() const;

@ -122,7 +174,8 @@ public:

 	QString getDebugLog() const;

-	void setCurrentAudioDevice(bool input, std::string deviceID);
+	void setCurrentAudioDevice(bool input, const QString &deviceId);
+	void setCurrentVideoDevice(const QString &deviceId);
 	void setAudioVolume(bool input, float level);
 	void setAudioDuckingEnabled(bool enabled);

@ -140,15 +193,17 @@ private:
 	};
 	void handleRequestError(const RPCError &error);
 	void handleControllerError(const QString &error);
-	void finish(FinishType type, const MTPPhoneCallDiscardReason &reason = MTP_phoneCallDiscardReasonDisconnect());
+	void finish(
+		FinishType type,
+		const MTPPhoneCallDiscardReason &reason
+			= MTP_phoneCallDiscardReasonDisconnect());
 	void startOutgoing();
 	void startIncoming();
 	void startWaitingTrack();
+	void sendSignalingData(const QByteArray &data);

 	void generateModExpFirst(bytes::const_span randomSeed);
-	void handleControllerStateChange(
-		not_null<Controller*> controller,
-		TgVoipState state);
+	void handleControllerStateChange(tgcalls::State state);
 	void handleControllerBarCountChange(int count);
 	void createAndStartController(const MTPDphoneCall &call);

@ -166,21 +221,27 @@ private:
 	void setSignalBarCount(int count);
 	void destroyController();

-	not_null<Delegate*> _delegate;
-	not_null<UserData*> _user;
+	void setupOutgoingVideo();
+	void updateRemoteMediaState(
+		tgcalls::AudioState audio,
+		tgcalls::VideoState video);
+
+	const not_null<Delegate*> _delegate;
+	const not_null<UserData*> _user;
 	MTP::Sender _api;
 	Type _type = Type::Outgoing;
 	rpl::variable<State> _state = State::Starting;
+	rpl::variable<RemoteAudioState> _remoteAudioState = RemoteAudioState::Active;
+	rpl::variable<Webrtc::VideoState> _remoteVideoState;
+	rpl::event_stream<Error> _errors;
 	FinishType _finishAfterRequestingCall = FinishType::None;
 	bool _answerAfterDhConfigReceived = false;
-	int _signalBarCount = kSignalBarStarting;
-	base::Observable<int> _signalBarCountChanged;
+	rpl::variable<int> _signalBarCount = kSignalBarStarting;
 	crl::time _startTime = 0;
 	base::DelayedCallTimer _finishByTimeoutTimer;
 	base::Timer _discardByTimeoutTimer;

-	bool _mute = false;
-	base::Observable<bool> _muteChanged;
+	rpl::variable<bool> _muted = false;

 	DhConfig _dhConfig;
 	bytes::vector _ga;
@ -194,7 +255,10 @@ private:
 	uint64 _accessHash = 0;
 	uint64 _keyFingerprint = 0;

-	std::unique_ptr<Controller> _controller;
+	std::unique_ptr<tgcalls::Instance> _instance;
+	std::shared_ptr<tgcalls::VideoCaptureInterface> _videoCapture;
+	const std::unique_ptr<Webrtc::VideoTrack> _videoIncoming;
+	const std::unique_ptr<Webrtc::VideoTrack> _videoOutgoing;

 	std::unique_ptr<Media::Audio::Track> _waitingTrack;

--- a/Telegram/SourceFiles/calls/calls_controller.cpp
+++ b/Telegram/SourceFiles/calls/calls_controller.cpp
@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "calls/calls_controller.h"

 #include "calls/calls_controller_tgvoip.h"
+#include "calls/calls_controller_webrtc.h"

 namespace Calls {

@ -18,7 +19,20 @@ namespace Calls {
 		const std::vector<TgVoipEndpoint> &endpoints,
 		const TgVoipProxy *proxy,
 		TgVoipNetworkType initialNetworkType,
-		const TgVoipEncryptionKey &encryptionKey) {
+		const TgVoipEncryptionKey &encryptionKey,
+		Fn<void(QByteArray)> sendSignalingData,
+		Fn<void(QImage)> displayNextFrame) {
+	if (version == WebrtcController::Version()) {
+		return std::make_unique<WebrtcController>(
+			config,
+			persistentState,
+			endpoints,
+			proxy,
+			initialNetworkType,
+			encryptionKey,
+			std::move(sendSignalingData),
+			std::move(displayNextFrame));
+	}
 	return std::make_unique<TgVoipController>(
 		config,
 		persistentState,
@ -28,4 +42,12 @@ namespace Calls {
 		encryptionKey);
 }

+std::vector<std::string> CollectControllerVersions() {
+	return { WebrtcController::Version(), TgVoipController::Version() };
+}
+
+int ControllerMaxLayer() {
+	return TgVoip::getConnectionMaxLayer();
+}
+
 } // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_controller.h
+++ b/Telegram/SourceFiles/calls/calls_controller.h
@ -26,6 +26,7 @@ public:
 	virtual void setInputVolume(float level) = 0;
 	virtual void setOutputVolume(float level) = 0;
 	virtual void setAudioOutputDuckingEnabled(bool enabled) = 0;
+	virtual bool receiveSignalingData(const QByteArray &data) = 0;

 	virtual std::string getLastError() = 0;
 	virtual std::string getDebugInfo() = 0;
@ -48,6 +49,11 @@ public:
 	const std::vector<TgVoipEndpoint> &endpoints,
 	const TgVoipProxy *proxy,
 	TgVoipNetworkType initialNetworkType,
-	const TgVoipEncryptionKey &encryptionKey);
+	const TgVoipEncryptionKey &encryptionKey,
+	Fn<void(QByteArray)> sendSignalingData,
+	Fn<void(QImage)> displayNextFrame);
+
+[[nodiscard]] std::vector<std::string> CollectControllerVersions();
+[[nodiscard]] int ControllerMaxLayer();

 } // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_controller_tgvoip.h
+++ b/Telegram/SourceFiles/calls/calls_controller_tgvoip.h
@ -33,7 +33,7 @@ public:
 		return TgVoip::getVersion();
 	}

-	[[nodiscard]] std::string version() override {
+	std::string version() override {
 		return Version();
 	}
 	void setNetworkType(TgVoipNetworkType networkType) override {
@ -63,6 +63,9 @@ public:
 	void setAudioOutputDuckingEnabled(bool enabled) override {
 		_impl->setAudioOutputDuckingEnabled(enabled);
 	}
+	bool receiveSignalingData(const QByteArray &data) override {
+		return false;
+	}
 	std::string getLastError() override {
 		return _impl->getLastError();
 	}
@ -81,8 +84,7 @@ public:
 	void setOnStateUpdated(Fn<void(TgVoipState)> onStateUpdated) override {
 		_impl->setOnStateUpdated(std::move(onStateUpdated));
 	}
-	void setOnSignalBarsUpdated(
-			Fn<void(int)> onSignalBarsUpdated) override {
+	void setOnSignalBarsUpdated(Fn<void(int)> onSignalBarsUpdated) override {
 		_impl->setOnSignalBarsUpdated(std::move(onSignalBarsUpdated));
 	}
 	TgVoipFinalState stop() override {
--- a/Telegram/SourceFiles/calls/calls_controller_webrtc.cpp
+++ b/Telegram/SourceFiles/calls/calls_controller_webrtc.cpp
@ -0,0 +1,175 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "calls/calls_controller_webrtc.h"
+
+#include "webrtc/webrtc_call_context.h"
+
+namespace Calls {
+namespace {
+
+using namespace Webrtc;
+
+[[nodiscard]] CallConnectionDescription ConvertEndpoint(const TgVoipEndpoint &data) {
+	return CallConnectionDescription{
+		.ip = QString::fromStdString(data.host.ipv4),
+		.ipv6 = QString::fromStdString(data.host.ipv6),
+		.peerTag = QByteArray(
+			reinterpret_cast<const char*>(data.peerTag),
+			base::array_size(data.peerTag)),
+		.connectionId = data.endpointId,
+		.port = data.port,
+	};
+}
+
+[[nodiscard]] CallContext::Config MakeContextConfig(
+		const TgVoipConfig &config,
+		const TgVoipPersistentState &persistentState,
+		const std::vector<TgVoipEndpoint> &endpoints,
+		const TgVoipProxy *proxy,
+		TgVoipNetworkType initialNetworkType,
+		const TgVoipEncryptionKey &encryptionKey,
+		Fn<void(QByteArray)> sendSignalingData,
+		Fn<void(QImage)> displayNextFrame) {
+	Expects(!endpoints.empty());
+
+	auto result = CallContext::Config{
+		.proxy = (proxy
+			? ProxyServer{
+				.host = QString::fromStdString(proxy->host),
+				.username = QString::fromStdString(proxy->login),
+				.password = QString::fromStdString(proxy->password),
+				.port = proxy->port }
+			: ProxyServer()),
+		.dataSaving = (config.dataSaving != TgVoipDataSaving::Never),
+		.key = QByteArray(
+			reinterpret_cast<const char*>(encryptionKey.value.data()),
+			encryptionKey.value.size()),
+		.outgoing = encryptionKey.isOutgoing,
+		.primary = ConvertEndpoint(endpoints.front()),
+		.alternatives = endpoints | ranges::view::drop(
+			1
+		) | ranges::view::transform(ConvertEndpoint) | ranges::to_vector,
+		.maxLayer = config.maxApiLayer,
+		.allowP2P = config.enableP2P,
+		.sendSignalingData = std::move(sendSignalingData),
+		.displayNextFrame = std::move(displayNextFrame),
+	};
+	return result;
+}
+
+} // namespace
+
+WebrtcController::WebrtcController(
+	const TgVoipConfig &config,
+	const TgVoipPersistentState &persistentState,
+	const std::vector<TgVoipEndpoint> &endpoints,
+	const TgVoipProxy *proxy,
+	TgVoipNetworkType initialNetworkType,
+	const TgVoipEncryptionKey &encryptionKey,
+	Fn<void(QByteArray)> sendSignalingData,
+	Fn<void(QImage)> displayNextFrame)
+: _impl(std::make_unique<CallContext>(MakeContextConfig(
+		config,
+		persistentState,
+		endpoints,
+		proxy,
+		initialNetworkType,
+		encryptionKey,
+		std::move(sendSignalingData),
+		std::move(displayNextFrame)))) {
+}
+
+WebrtcController::~WebrtcController() = default;
+
+std::string WebrtcController::Version() {
+	return CallContext::Version().toStdString();
+}
+
+std::string WebrtcController::version() {
+	return Version();
+}
+
+void WebrtcController::setNetworkType(TgVoipNetworkType networkType) {
+}
+
+void WebrtcController::setMuteMicrophone(bool muteMicrophone) {
+	_impl->setIsMuted(muteMicrophone);
+}
+
+void WebrtcController::setAudioOutputGainControlEnabled(bool enabled) {
+}
+
+void WebrtcController::setEchoCancellationStrength(int strength) {
+}
+
+void WebrtcController::setAudioInputDevice(std::string id) {
+}
+
+void WebrtcController::setAudioOutputDevice(std::string id) {
+}
+
+void WebrtcController::setInputVolume(float level) {
+}
+
+void WebrtcController::setOutputVolume(float level) {
+}
+
+void WebrtcController::setAudioOutputDuckingEnabled(bool enabled) {
+}
+
+bool WebrtcController::receiveSignalingData(const QByteArray &data) {
+	return _impl->receiveSignalingData(data);
+}
+
+std::string WebrtcController::getLastError() {
+	return {};
+}
+
+std::string WebrtcController::getDebugInfo() {
+	return _impl->getDebugInfo().toStdString();
+}
+
+int64_t WebrtcController::getPreferredRelayId() {
+	return 0;
+}
+
+TgVoipTrafficStats WebrtcController::getTrafficStats() {
+	return {};
+}
+
+TgVoipPersistentState WebrtcController::getPersistentState() {
+	return TgVoipPersistentState{};
+}
+
+void WebrtcController::setOnStateUpdated(
+		Fn<void(TgVoipState)> onStateUpdated) {
+	_stateUpdatedLifetime.destroy();
+	_impl->state().changes(
+	) | rpl::start_with_next([=](CallState state) {
+		onStateUpdated([&] {
+			switch (state) {
+			case CallState::Initializing: return TgVoipState::WaitInit;
+			case CallState::Reconnecting: return TgVoipState::Reconnecting;
+			case CallState::Connected: return TgVoipState::Established;
+			case CallState::Failed: return TgVoipState::Failed;
+			}
+			Unexpected("State value in Webrtc::CallContext::state.");
+		}());
+	}, _stateUpdatedLifetime);
+}
+
+void WebrtcController::setOnSignalBarsUpdated(
+	Fn<void(int)> onSignalBarsUpdated) {
+}
+
+TgVoipFinalState WebrtcController::stop() {
+	_impl->stop();
+	return TgVoipFinalState();
+}
+
+} // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_controller_webrtc.h
+++ b/Telegram/SourceFiles/calls/calls_controller_webrtc.h
@ -0,0 +1,60 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "calls/calls_controller.h"
+
+namespace Webrtc {
+class CallContext;
+} // namespace Webrtc
+
+namespace Calls {
+
+class WebrtcController final : public Controller {
+public:
+	WebrtcController(
+		const TgVoipConfig &config,
+		const TgVoipPersistentState &persistentState,
+		const std::vector<TgVoipEndpoint> &endpoints,
+		const TgVoipProxy *proxy,
+		TgVoipNetworkType initialNetworkType,
+		const TgVoipEncryptionKey &encryptionKey,
+		Fn<void(QByteArray)> sendSignalingData,
+		Fn<void(QImage)> displayNextFrame);
+	~WebrtcController();
+
+	[[nodiscard]] static std::string Version();
+
+	std::string version() override;
+	void setNetworkType(TgVoipNetworkType networkType) override;
+	void setMuteMicrophone(bool muteMicrophone) override;
+	void setAudioOutputGainControlEnabled(bool enabled) override;
+	void setEchoCancellationStrength(int strength) override;
+	void setAudioInputDevice(std::string id) override;
+	void setAudioOutputDevice(std::string id) override;
+	void setInputVolume(float level) override;
+	void setOutputVolume(float level) override;
+	void setAudioOutputDuckingEnabled(bool enabled) override;
+	bool receiveSignalingData(const QByteArray &data) override;
+	std::string getLastError() override;
+	std::string getDebugInfo() override;
+	int64_t getPreferredRelayId() override;
+	TgVoipTrafficStats getTrafficStats() override;
+	TgVoipPersistentState getPersistentState() override;
+	void setOnStateUpdated(Fn<void(TgVoipState)> onStateUpdated) override;
+	void setOnSignalBarsUpdated(Fn<void(int)> onSignalBarsUpdated) override;
+	TgVoipFinalState stop() override;
+
+private:
+	const std::unique_ptr<Webrtc::CallContext> _impl;
+
+	rpl::lifetime _stateUpdatedLifetime;
+
+};
+
+} // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_emoji_fingerprint.cpp
+++ b/Telegram/SourceFiles/calls/calls_emoji_fingerprint.cpp
@ -8,11 +8,19 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "calls/calls_emoji_fingerprint.h"

 #include "calls/calls_call.h"
+#include "calls/calls_signal_bars.h"
+#include "lang/lang_keys.h"
+#include "data/data_user.h"
+#include "ui/widgets/tooltip.h"
 #include "ui/emoji_config.h"
+#include "ui/rp_widget.h"
+#include "styles/style_calls.h"

 namespace Calls {
 namespace {

+constexpr auto kTooltipShowTimeoutMs = 1000;
+
 const ushort Data[] = {
 0xd83d, 0xde09, 0xd83d, 0xde0d, 0xd83d, 0xde1b, 0xd83d, 0xde2d, 0xd83d, 0xde31, 0xd83d, 0xde21,
 0xd83d, 0xde0e, 0xd83d, 0xde34, 0xd83d, 0xde35, 0xd83d, 0xde08, 0xd83d, 0xde2c, 0xd83d, 0xde07,
@ -143,7 +151,147 @@ std::vector<EmojiPtr> ComputeEmojiFingerprint(not_null<Call*> call) {
 		}
 	}
 	return result;
+}

+object_ptr<Ui::RpWidget> CreateFingerprintAndSignalBars(
+		not_null<QWidget*> parent,
+		not_null<Call*> call) {
+	class EmojiTooltipShower final : public Ui::AbstractTooltipShower {
+	public:
+		EmojiTooltipShower(not_null<QWidget*> window, const QString &text)
+		: _window(window)
+		, _text(text) {
+		}
+
+		QString tooltipText() const override {
+			return _text;
+		}
+		QPoint tooltipPos() const override {
+			return QCursor::pos();
+		}
+		bool tooltipWindowActive() const override {
+			return _window->isActiveWindow();
+		}
+
+	private:
+		const not_null<QWidget*> _window;
+		const QString _text;
+
+	};
+
+	auto result = object_ptr<Ui::RpWidget>(parent);
+	const auto raw = result.data();
+
+	// Emoji tooltip.
+	const auto shower = raw->lifetime().make_state<EmojiTooltipShower>(
+		parent->window(),
+		tr::lng_call_fingerprint_tooltip(
+			tr::now,
+			lt_user,
+			call->user()->name));
+	raw->setMouseTracking(true);
+	raw->events(
+	) | rpl::start_with_next([=](not_null<QEvent*> e) {
+		if (e->type() == QEvent::MouseMove) {
+			Ui::Tooltip::Show(kTooltipShowTimeoutMs, shower);
+		} else if (e->type() == QEvent::Leave) {
+			Ui::Tooltip::Hide();
+		}
+	}, raw->lifetime());
+
+	// Signal bars.
+	const auto bars = Ui::CreateChild<SignalBars>(
+		raw,
+		call,
+		st::callPanelSignalBars);
+	bars->setAttribute(Qt::WA_TransparentForMouseEvents);
+
+	// Geometry.
+	const auto print = ComputeEmojiFingerprint(call);
+	auto realSize = Ui::Emoji::GetSizeNormal();
+	auto size = realSize / cIntRetinaFactor();
+	auto count = print.size();
+	const auto printSize = QSize(
+		count * size + (count - 1) * st::callFingerprintSkip,
+		size);
+	const auto fullPrintSize = QRect(
+		QPoint(),
+		printSize
+	).marginsAdded(st::callFingerprintPadding).size();
+	const auto fullBarsSize = bars->rect().marginsAdded(
+		st::callSignalBarsPadding
+	).size();
+	const auto fullSize = QSize(
+		(fullPrintSize.width()
+			+ st::callFingerprintSignalBarsSkip
+			+ fullBarsSize.width()),
+		fullPrintSize.height());
+	raw->resize(fullSize);
+	bars->moveToRight(
+		st::callSignalBarsPadding.right(),
+		st::callSignalBarsPadding.top());
+
+	// Paint.
+	const auto background = raw->lifetime().make_state<QImage>(
+		fullSize * cIntRetinaFactor(),
+		QImage::Format_ARGB32_Premultiplied);
+	background->setDevicePixelRatio(cRetinaFactor());
+	rpl::merge(
+		rpl::single(rpl::empty_value()),
+		Ui::Emoji::Updated(),
+		style::PaletteChanged()
+	) | rpl::start_with_next([=] {
+		background->fill(Qt::transparent);
+
+		// Prepare.
+		auto p = QPainter(background);
+		const auto height = fullSize.height();
+		const auto fullPrintRect = QRect(QPoint(), fullPrintSize);
+		const auto fullBarsRect = QRect(
+			fullSize.width() - fullBarsSize.width(),
+			0,
+			fullBarsSize.width(),
+			height);
+		const auto bigRadius = height / 2;
+		const auto smallRadius = st::buttonRadius;
+		const auto hq = PainterHighQualityEnabler(p);
+		p.setPen(Qt::NoPen);
+		p.setBrush(st::callBgButton);
+
+		// Fingerprint part.
+		p.setClipRect(0, 0, fullPrintSize.width() / 2, height);
+		p.drawRoundedRect(fullPrintRect, bigRadius, bigRadius);
+		p.setClipRect(fullPrintSize.width() / 2, 0, fullSize.width(), height);
+		p.drawRoundedRect(fullPrintRect, smallRadius, smallRadius);
+
+		// Signal bars part.
+		const auto middle = fullBarsRect.center().x();
+		p.setClipRect(0, 0, middle, height);
+		p.drawRoundedRect(fullBarsRect, smallRadius, smallRadius);
+		p.setClipRect(middle, 0, fullBarsRect.width(), height);
+		p.drawRoundedRect(fullBarsRect, bigRadius, bigRadius);
+
+		// Emoji.
+		const auto realSize = Ui::Emoji::GetSizeNormal();
+		const auto size = realSize / cIntRetinaFactor();
+		auto left = st::callFingerprintPadding.left();
+		const auto top = st::callFingerprintPadding.top();
+		p.setClipping(false);
+		for (const auto emoji : print) {
+			Ui::Emoji::Draw(p, emoji, realSize, left, top);
+			left += st::callFingerprintSkip + size;
+		}
+
+		raw->update();
+	}, raw->lifetime());
+
+	raw->paintRequest(
+	) | rpl::start_with_next([=](QRect clip) {
+		QPainter(raw).drawImage(raw->rect(), *background);
+	}, raw->lifetime());
+
+	raw->show();
+	return result;
 }

 } // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_emoji_fingerprint.h
+++ b/Telegram/SourceFiles/calls/calls_emoji_fingerprint.h
@ -7,10 +7,21 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once

+#include "base/object_ptr.h"
+
+namespace Ui {
+class RpWidget;
+} // namespace Ui
+
 namespace Calls {

 class Call;

-std::vector<EmojiPtr> ComputeEmojiFingerprint(not_null<Call*> call);
+[[nodiscard]] std::vector<EmojiPtr> ComputeEmojiFingerprint(
+	not_null<Call*> call);
+
+[[nodiscard]] object_ptr<Ui::RpWidget> CreateFingerprintAndSignalBars(
+	not_null<QWidget*> parent,
+	not_null<Call*> call);

 } // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_instance.cpp
+++ b/Telegram/SourceFiles/calls/calls_instance.cpp
@ -24,6 +24,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mainwidget.h"
 #include "mtproto/mtproto_config.h"
 #include "boxes/rate_call_box.h"
+#include "tgcalls/VideoCaptureInterface.h"
 #include "app.h"

 namespace Calls {
@ -35,15 +36,9 @@ constexpr auto kServerConfigUpdateTimeoutMs = 24 * 3600 * crl::time(1000);

 Instance::Instance() = default;

-Instance::~Instance() {
-	for (const auto panel : _pendingPanels) {
-		if (panel) {
-			delete panel;
-		}
-	}
-}
+Instance::~Instance() = default;

-void Instance::startOutgoingCall(not_null<UserData*> user) {
+void Instance::startOutgoingCall(not_null<UserData*> user, bool video) {
 	if (alreadyInCall()) { // Already in a call.
 		_currentCallPanel->showAndActivate();
 		return;
@ -55,17 +50,21 @@ void Instance::startOutgoingCall(not_null<UserData*> user) {
 			tr::lng_call_error_not_available(tr::now, lt_user, user->name)));
 		return;
 	}
-	requestMicrophonePermissionOrFail(crl::guard(this, [=] {
-		createCall(user, Call::Type::Outgoing);
+	requestPermissionsOrFail(crl::guard(this, [=] {
+		createCall(user, Call::Type::Outgoing, video);
 	}));
 }

 void Instance::callFinished(not_null<Call*> call) {
+	crl::on_main(call, [=] {
 		destroyCall(call);
+	});
 }

 void Instance::callFailed(not_null<Call*> call) {
+	crl::on_main(call, [=] {
 		destroyCall(call);
+	});
 }

 void Instance::callRedial(not_null<Call*> call) {
@ -107,7 +106,9 @@ void Instance::playSound(Sound sound) {

 void Instance::destroyCall(not_null<Call*> call) {
 	if (_currentCall.get() == call) {
-		destroyCurrentPanel();
+		_currentCallPanel->closeBeforeDestroy();
+		_currentCallPanel = nullptr;
+
 		auto taken = base::take(_currentCall);
 		_currentCallChanges.fire(nullptr);
 		taken.reset();
@ -119,19 +120,8 @@ void Instance::destroyCall(not_null<Call*> call) {
 	}
 }

-void Instance::destroyCurrentPanel() {
-	_pendingPanels.erase(
-		std::remove_if(
-			_pendingPanels.begin(),
-			_pendingPanels.end(),
-			[](auto &&panel) { return !panel; }),
-		_pendingPanels.end());
-	_pendingPanels.emplace_back(_currentCallPanel.release());
-	_pendingPanels.back()->hideAndDestroy(); // Always queues the destruction.
-}
-
-void Instance::createCall(not_null<UserData*> user, Call::Type type) {
-	auto call = std::make_unique<Call>(getCallDelegate(), user, type);
+void Instance::createCall(not_null<UserData*> user, Call::Type type, bool video) {
+	auto call = std::make_unique<Call>(getCallDelegate(), user, type, video);
 	const auto raw = call.get();

 	user->session().account().sessionChanges(
@ -237,8 +227,14 @@ void Instance::refreshServerConfig(not_null<Main::Session*> session) {

 void Instance::handleUpdate(
 		not_null<Main::Session*> session,
-		const MTPDupdatePhoneCall& update) {
-	handleCallUpdate(session, update.vphone_call());
+		const MTPUpdate &update) {
+	update.match([&](const MTPDupdatePhoneCall &data) {
+		handleCallUpdate(session, data.vphone_call());
+	}, [&](const MTPDupdatePhoneCallSignalingData &data) {
+		handleSignalingData(data);
+	}, [](const auto &) {
+		Unexpected("Update type in Calls::Instance::handleUpdate.");
+	});
 }

 void Instance::showInfoPanel(not_null<Call*> call) {
@ -272,8 +268,11 @@ void Instance::handleCallUpdate(
 		}
 		const auto &config = session->serverConfig();
 		if (alreadyInCall() || !user || user->isSelf()) {
+			const auto flags = phoneCall.is_video()
+				? MTPphone_DiscardCall::Flag::f_video
+				: MTPphone_DiscardCall::Flag(0);
 			session->api().request(MTPphone_DiscardCall(
-				MTP_flags(0),
+				MTP_flags(flags),
 				MTP_inputPhoneCall(phoneCall.vid(), phoneCall.vaccess_hash()),
 				MTP_int(0),
 				MTP_phoneCallDiscardReasonBusy(),
@ -283,7 +282,7 @@ void Instance::handleCallUpdate(
 			< base::unixtime::now()) {
 			LOG(("Ignoring too old call."));
 		} else {
-			createCall(user, Call::Type::Incoming);
+			createCall(user, Call::Type::Incoming, phoneCall.is_video());
 			_currentCall->handleUpdate(call);
 		}
 	} else if (!_currentCall || !_currentCall->handleUpdate(call)) {
@ -291,6 +290,14 @@ void Instance::handleCallUpdate(
 	}
 }

+void Instance::handleSignalingData(
+		const MTPDupdatePhoneCallSignalingData &data) {
+	if (!_currentCall || !_currentCall->handleSignalingData(data)) {
+		DEBUG_LOG(("API Warning: unexpected call signaling data %1"
+			).arg(data.vphone_call_id().v));
+	}
+}
+
 bool Instance::alreadyInCall() {
 	return (_currentCall && _currentCall->state() != Call::State::Busy);
 }
@ -303,13 +310,23 @@ rpl::producer<Call*> Instance::currentCallValue() const {
 	return _currentCallChanges.events_starting_with(currentCall());
 }

-void Instance::requestMicrophonePermissionOrFail(Fn<void()> onSuccess) {
-	Platform::PermissionStatus status=Platform::GetPermissionStatus(Platform::PermissionType::Microphone);
-	if (status==Platform::PermissionStatus::Granted) {
+void Instance::requestPermissionsOrFail(Fn<void()> onSuccess) {
+	using Type = Platform::PermissionType;
+	requestPermissionOrFail(Type::Microphone, [=] {
+		requestPermissionOrFail(Type::Camera, [=] {
+			crl::on_main(onSuccess);
+		});
+	});
+}
+
+void Instance::requestPermissionOrFail(Platform::PermissionType type, Fn<void()> onSuccess) {
+	using Status = Platform::PermissionStatus;
+	const auto status = Platform::GetPermissionStatus(type);
+	if (status == Status::Granted) {
 		onSuccess();
-	} else if(status==Platform::PermissionStatus::CanRequest) {
-		Platform::RequestPermission(Platform::PermissionType::Microphone, crl::guard(this, [=](Platform::PermissionStatus status) {
-			if (status==Platform::PermissionStatus::Granted) {
+	} else if (status == Status::CanRequest) {
+		Platform::RequestPermission(type, crl::guard(this, [=](Status status) {
+			if (status == Status::Granted) {
 				crl::on_main(onSuccess);
 			} else {
 				if (_currentCall) {
@ -321,11 +338,22 @@ void Instance::requestMicrophonePermissionOrFail(Fn<void()> onSuccess) {
 		if (alreadyInCall()) {
 			_currentCall->hangup();
 		}
-		Ui::show(Box<ConfirmBox>(tr::ktg_no_mic_permission(tr::now), tr::lng_menu_settings(tr::now), crl::guard(this, [] {
-			Platform::OpenSystemSettingsForPermission(Platform::PermissionType::Microphone);
+		Ui::show(Box<ConfirmBox>(tr::ktg_no_mic_permission(tr::now), tr::lng_menu_settings(tr::now), crl::guard(this, [=] {
+			Platform::OpenSystemSettingsForPermission(type);
 			Ui::hideLayer();
 		})));
 	}
 }

+std::shared_ptr<tgcalls::VideoCaptureInterface> Instance::getVideoCapture() {
+	if (auto result = _videoCapture.lock()) {
+		return result;
+	}
+	auto result = std::shared_ptr<tgcalls::VideoCaptureInterface>(
+		tgcalls::VideoCaptureInterface::Create(
+			Core::App().settings().callVideoInputDeviceId().toStdString()));
+	_videoCapture = result;
+	return result;
+}
+
 } // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_instance.h
+++ b/Telegram/SourceFiles/calls/calls_instance.h
@ -10,6 +10,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mtproto/sender.h"
 #include "calls/calls_call.h"

+namespace Platform {
+enum class PermissionType;
+} // namespace Platform
+
 namespace Media {
 namespace Audio {
 class Track;
@ -32,13 +36,14 @@ public:
 	Instance();
 	~Instance();

-	void startOutgoingCall(not_null<UserData*> user);
+	void startOutgoingCall(not_null<UserData*> user, bool video);
 	void handleUpdate(
 		not_null<Main::Session*> session,
-		const MTPDupdatePhoneCall &update);
+		const MTPUpdate &update);
 	void showInfoPanel(not_null<Call*> call);
 	[[nodiscard]] Call *currentCall() const;
 	[[nodiscard]] rpl::producer<Call*> currentCallValue() const;
+	std::shared_ptr<tgcalls::VideoCaptureInterface> getVideoCapture() override;

 	[[nodiscard]] bool isQuitPrevent();

@ -54,10 +59,12 @@ private:
 	void callRedial(not_null<Call*> call) override;
 	using Sound = Call::Delegate::Sound;
 	void playSound(Sound sound) override;
-	void createCall(not_null<UserData*> user, Call::Type type);
+	void createCall(not_null<UserData*> user, Call::Type type, bool video);
 	void destroyCall(not_null<Call*> call);
-	void destroyCurrentPanel();
-	void requestMicrophonePermissionOrFail(Fn<void()> onSuccess) override;
+	void requestPermissionsOrFail(Fn<void()> onSuccess) override;
+	void requestPermissionOrFail(Platform::PermissionType type, Fn<void()> onSuccess);
+
+	void handleSignalingData(const MTPDupdatePhoneCallSignalingData &data);

 	void refreshDhConfig();
 	void refreshServerConfig(not_null<Main::Session*> session);
@ -72,13 +79,13 @@ private:

 	crl::time _lastServerConfigUpdateTime = 0;
 	base::weak_ptr<Main::Session> _serverConfigRequestSession;
+	std::weak_ptr<tgcalls::VideoCaptureInterface> _videoCapture;

 	std::unique_ptr<Call> _currentCall;
 	rpl::event_stream<Call*> _currentCallChanges;
 	std::unique_ptr<Panel> _currentCallPanel;
 	base::Observable<Call*> _currentCallChanged;
 	base::Observable<FullMsgId> _newServiceMessage;
-	std::vector<QPointer<Panel>> _pendingPanels;

 	std::unique_ptr<Media::Audio::Track> _callConnectingTrack;
 	std::unique_ptr<Media::Audio::Track> _callEndedTrack;
--- a/Telegram/SourceFiles/calls/calls_panel.cpp
+++ b/Telegram/SourceFiles/calls/calls_panel.cpp
--- a/Telegram/SourceFiles/calls/calls_panel.h
+++ b/Telegram/SourceFiles/calls/calls_panel.h
@ -9,8 +9,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL

 #include "base/weak_ptr.h"
 #include "base/timer.h"
+#include "base/object_ptr.h"
 #include "calls/calls_call.h"
-#include "ui/widgets/tooltip.h"
 #include "ui/effects/animations.h"
 #include "ui/rp_widget.h"

@ -26,138 +26,117 @@ class IconButton;
 class FlatLabel;
 template <typename Widget>
 class FadeWrap;
+template <typename Widget>
+class PaddingWrap;
+class Window;
+namespace Platform {
+class TitleControls;
+} // namespace Platform
 } // namespace Ui

 namespace style {
 struct CallSignalBars;
+struct CallBodyLayout;
 } // namespace style

 namespace Calls {

-class SignalBars : public Ui::RpWidget, private base::Subscriber {
-public:
-	SignalBars(
-		QWidget *parent,
-		not_null<Call*> call,
-		const style::CallSignalBars &st,
-		Fn<void()> displayedChangedCallback = nullptr);
-
-	bool isDisplayed() const;
-
-protected:
-	void paintEvent(QPaintEvent *e) override;
-
-private:
-	void changed(int count);
-
-	const style::CallSignalBars &_st;
-	int _count = Call::kSignalBarStarting;
-	Fn<void()> _displayedChangedCallback;
-
-};
-
-class Panel
-	: public Ui::RpWidget
-	, private base::Subscriber
-	, private Ui::AbstractTooltipShower {
+class Userpic;
+class SignalBars;
+class VideoBubble;

+class Panel final {
 public:
 	Panel(not_null<Call*> call);
 	~Panel();

 	void showAndActivate();
 	void replaceCall(not_null<Call*> call);
-	void hideAndDestroy();
-
-protected:
-	void paintEvent(QPaintEvent *e) override;
-	void closeEvent(QCloseEvent *e) override;
-	void resizeEvent(QResizeEvent *e) override;
-	void mousePressEvent(QMouseEvent *e) override;
-	void mouseReleaseEvent(QMouseEvent *e) override;
-	void mouseMoveEvent(QMouseEvent *e) override;
-	void leaveEventHook(QEvent *e) override;
-	void leaveToChildEvent(QEvent *e, QWidget *child) override;
-	bool eventHook(QEvent *e) override;
+	void closeBeforeDestroy();

 private:
+	class Incoming;
+	class Button;
 	using State = Call::State;
 	using Type = Call::Type;
+	enum class AnswerHangupRedialState : uchar {
+		Answer,
+		Hangup,
+		Redial,
+	};

-	// AbstractTooltipShower interface
-	QString tooltipText() const override;
-	QPoint tooltipPos() const override;
-	bool tooltipWindowActive() const override;
+	[[nodiscard]] not_null<Ui::RpWidget*> widget() const;

+	void paint(QRect clip);
+
+	void initWindow();
+	void initWidget();
 	void initControls();
-	void reinitControls();
+	void reinitWithCall(Call *call);
 	void initLayout();
 	void initGeometry();
-	void hideDeactivated();
-	void createBottomImage();
-	void createDefaultCacheImage();
-	void refreshCacheImageUserPhoto();

-	void processUserPhoto();
-	void refreshUserPhoto();
-	bool isGoodUserPhoto(PhotoData *photo);
-	void createUserpicCache(Image *image);
+	void handleClose();
+
 	QRect signalBarsRect() const;
 	void paintSignalBarsBg(Painter &p);

 	void updateControlsGeometry();
 	void updateHangupGeometry();
 	void updateStatusGeometry();
+	void updateOutgoingVideoBubbleGeometry();
 	void stateChanged(State state);
 	void showControls();
 	void updateStatusText(State state);
 	void startDurationUpdateTimer(crl::time currentDuration);
-	void fillFingerprint();
-	void toggleOpacityAnimation(bool visible);
-	void finishAnimating();
-	void destroyDelayed();
+	void setIncomingSize(QSize size);
+	void refreshIncomingGeometry();
+
+	void refreshOutgoingPreviewInBody(State state);
+	void toggleFullScreen(bool fullscreen);
+	void createRemoteAudioMute();
+	void refreshAnswerHangupRedialLabel();
+
+	[[nodiscard]] QRect incomingFrameGeometry() const;
+	[[nodiscard]] QRect outgoingFrameGeometry() const;

 	Call *_call = nullptr;
 	not_null<UserData*> _user;
-	std::shared_ptr<Data::CloudImageView> _userpic;
-	std::shared_ptr<Data::PhotoMedia> _photo;

-	bool _useTransparency = true;
-	style::margins _padding;
-	int _contentTop = 0;
+	const std::unique_ptr<Ui::Window> _window;
+	std::unique_ptr<Incoming> _incoming;

-	bool _dragging = false;
-	QPoint _dragStartMousePosition;
-	QPoint _dragStartMyPosition;
+#ifdef Q_OS_WIN
+	std::unique_ptr<Ui::Platform::TitleControls> _controls;
+#endif // Q_OS_WIN

-	rpl::lifetime _stateLifetime;
+	QSize _incomingFrameSize;

-	class Button;
+	rpl::lifetime _callLifetime;
+
+	not_null<const style::CallBodyLayout*> _bodySt;
 	object_ptr<Button> _answerHangupRedial;
 	object_ptr<Ui::FadeWrap<Button>> _decline;
 	object_ptr<Ui::FadeWrap<Button>> _cancel;
 	bool _hangupShown = false;
+	bool _outgoingPreviewInBody = false;
+	std::optional<AnswerHangupRedialState> _answerHangupRedialState;
 	Ui::Animations::Simple _hangupShownProgress;
-	object_ptr<Ui::IconButton> _mute;
+	object_ptr<Button> _camera;
+	object_ptr<Button> _mute;
 	object_ptr<Ui::FlatLabel> _name;
 	object_ptr<Ui::FlatLabel> _status;
-	object_ptr<SignalBars> _signalBars;
-	std::vector<EmojiPtr> _fingerprint;
-	QRect _fingerprintArea;
+	object_ptr<Ui::RpWidget> _fingerprint = { nullptr };
+	object_ptr<Ui::PaddingWrap<Ui::FlatLabel>> _remoteAudioMute = { nullptr };
+	std::unique_ptr<Userpic> _userpic;
+	std::unique_ptr<VideoBubble> _outgoingVideoBubble;
+	QPixmap _bottomShadow;
+	int _bodyTop = 0;
+	int _buttonsTop = 0;

 	base::Timer _updateDurationTimer;
 	base::Timer _updateOuterRippleTimer;

-	bool _visible = false;
-	QPixmap _userPhoto;
-	PhotoId _userPhotoId = 0;
-	bool _userPhotoFull = false;
-
-	Ui::Animations::Simple _opacityAnimation;
-	QPixmap _animationCache;
-	QPixmap _bottomCache;
-	QPixmap _cache;
-
 };

 } // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_signal_bars.cpp
+++ b/Telegram/SourceFiles/calls/calls_signal_bars.cpp
@ -0,0 +1,64 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "calls/calls_signal_bars.h"
+
+#include "calls/calls_call.h"
+#include "styles/style_calls.h"
+
+namespace Calls {
+
+SignalBars::SignalBars(
+	QWidget *parent,
+	not_null<Call*> call,
+	const style::CallSignalBars &st)
+: RpWidget(parent)
+, _st(st)
+, _count(Call::kSignalBarStarting) {
+	resize(
+		_st.width + (_st.width + _st.skip) * (Call::kSignalBarCount - 1),
+		_st.max);
+	call->signalBarCountValue(
+	) | rpl::start_with_next([=](int count) {
+		changed(count);
+	}, lifetime());
+}
+
+void SignalBars::paintEvent(QPaintEvent *e) {
+	Painter p(this);
+
+	PainterHighQualityEnabler hq(p);
+	p.setPen(Qt::NoPen);
+	p.setBrush(_st.color);
+	for (auto i = 0; i < Call::kSignalBarCount; ++i) {
+		p.setOpacity((i < _count) ? 1. : _st.inactiveOpacity);
+		const auto barHeight = _st.min
+			+ (_st.max - _st.min) * (i / float64(Call::kSignalBarCount - 1));
+		const auto barLeft = i * (_st.width + _st.skip);
+		const auto barTop = height() - barHeight;
+		p.drawRoundedRect(
+			QRectF(
+				barLeft,
+				barTop,
+				_st.width,
+				barHeight),
+			_st.radius,
+			_st.radius);
+	}
+	p.setOpacity(1.);
+}
+
+void SignalBars::changed(int count) {
+	if (_count == Call::kSignalBarFinished) {
+		return;
+	} else if (_count != count) {
+		_count = count;
+		update();
+	}
+}
+
+} // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_signal_bars.h
+++ b/Telegram/SourceFiles/calls/calls_signal_bars.h
@ -0,0 +1,37 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "ui/rp_widget.h"
+
+namespace style {
+struct CallSignalBars;
+} // namespace style
+
+namespace Calls {
+
+class Call;
+
+class SignalBars final : public Ui::RpWidget {
+public:
+	SignalBars(
+		QWidget *parent,
+		not_null<Call*> call,
+		const style::CallSignalBars &st);
+
+private:
+	void paintEvent(QPaintEvent *e) override;
+
+	void changed(int count);
+
+	const style::CallSignalBars &_st;
+	int _count = 0;
+
+};
+
+} // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_top_bar.cpp
+++ b/Telegram/SourceFiles/calls/calls_top_bar.cpp
@ -14,7 +14,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "core/application.h"
 #include "calls/calls_call.h"
 #include "calls/calls_instance.h"
-#include "calls/calls_panel.h"
+#include "calls/calls_signal_bars.h"
 #include "data/data_user.h"
 #include "data/data_changes.h"
 #include "main/main_session.h"
@ -94,14 +94,14 @@ TopBar::TopBar(
 void TopBar::initControls() {
 	_mute->setClickedCallback([=] {
 		if (const auto call = _call.get()) {
-			call->setMute(!call->isMute());
+			call->setMuted(!call->muted());
 		}
 	});
-	setMuted(_call->isMute());
-	subscribe(_call->muteChanged(), [=](bool mute) {
-		setMuted(mute);
+	_call->mutedValue(
+	) | rpl::start_with_next([=](bool muted) {
+		setMuted(muted);
 		update();
-	});
+	}, lifetime());

 	_call->user()->session().changes().peerUpdates(
 		Data::PeerUpdate::Flag::Name
--- a/Telegram/SourceFiles/calls/calls_top_bar.h
+++ b/Telegram/SourceFiles/calls/calls_top_bar.h
@ -28,7 +28,7 @@ namespace Calls {
 class Call;
 class SignalBars;

-class TopBar : public Ui::RpWidget, private base::Subscriber {
+class TopBar : public Ui::RpWidget {
 public:
 	TopBar(QWidget *parent, const base::weak_ptr<Call> &call);

--- a/Telegram/SourceFiles/calls/calls_userpic.cpp
+++ b/Telegram/SourceFiles/calls/calls_userpic.cpp
@ -0,0 +1,217 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "calls/calls_userpic.h"
+
+#include "data/data_peer.h"
+#include "main/main_session.h"
+#include "data/data_changes.h"
+#include "data/data_peer.h"
+#include "data/data_session.h"
+#include "data/data_cloud_file.h"
+#include "data/data_photo_media.h"
+#include "data/data_file_origin.h"
+#include "ui/empty_userpic.h"
+#include "apiwrap.h" // requestFullPeer.
+#include "styles/style_calls.h"
+
+namespace Calls {
+namespace {
+
+} // namespace
+
+Userpic::Userpic(
+	not_null<QWidget*> parent,
+	not_null<PeerData*> peer,
+	rpl::producer<bool> muted)
+: _content(parent)
+, _peer(peer) {
+	setGeometry(0, 0, 0);
+	setup(std::move(muted));
+}
+
+Userpic::~Userpic() = default;
+
+void Userpic::setVisible(bool visible) {
+	_content.setVisible(visible);
+}
+
+void Userpic::setGeometry(int x, int y, int size) {
+	if (this->size() != size) {
+		_userPhoto = QPixmap();
+		_userPhotoFull = false;
+	}
+	_content.setGeometry(x, y, size, size);
+	_content.update();
+	if (_userPhoto.isNull()) {
+		refreshPhoto();
+	}
+}
+
+void Userpic::setup(rpl::producer<bool> muted) {
+	_content.show();
+	_content.setAttribute(Qt::WA_TransparentForMouseEvents);
+
+	_content.paintRequest(
+	) | rpl::start_with_next([=] {
+		paint();
+	}, lifetime());
+
+	std::move(
+		muted
+	) | rpl::start_with_next([=](bool muted) {
+		setMuted(muted);
+	}, lifetime());
+
+	_peer->session().changes().peerFlagsValue(
+		_peer,
+		Data::PeerUpdate::Flag::Photo
+	) | rpl::start_with_next([=] {
+		processPhoto();
+	}, lifetime());
+
+	_peer->session().downloaderTaskFinished(
+	) | rpl::start_with_next([=] {
+		refreshPhoto();
+	}, lifetime());
+
+	_mutedAnimation.stop();
+}
+
+void Userpic::setMuteLayout(QPoint position, int size, int stroke) {
+	_mutePosition = position;
+	_muteSize = size;
+	_muteStroke = stroke;
+	_content.update();
+}
+
+void Userpic::paint() {
+	Painter p(&_content);
+
+	p.drawPixmap(0, 0, _userPhoto);
+	if (_muted && _muteSize > 0) {
+		auto hq = PainterHighQualityEnabler(p);
+		auto pen = st::callBgOpaque->p;
+		pen.setWidth(_muteStroke);
+		p.setPen(pen);
+		p.setBrush(st::callHangupBg);
+		const auto rect = QRect(
+			_mutePosition.x() - _muteSize / 2,
+			_mutePosition.y() - _muteSize / 2,
+			_muteSize,
+			_muteSize);
+		p.drawEllipse(rect);
+		st::callMutedPeerIcon.paintInCenter(p, rect);
+	}
+}
+
+void Userpic::setMuted(bool muted) {
+	if (_muted == muted) {
+		return;
+	}
+	_muted = muted;
+	_content.update();
+	//_mutedAnimation.start(
+	//	[=] { _content.update(); },
+	//	_muted ? 0. : 1.,
+	//	_muted ? 1. : 0.,
+	//	st::fadeWrapDuration);
+}
+
+int Userpic::size() const {
+	return _content.width();
+}
+
+void Userpic::processPhoto() {
+	_userpic = _peer->createUserpicView();
+	_peer->loadUserpic();
+	const auto photo = _peer->userpicPhotoId()
+		? _peer->owner().photo(_peer->userpicPhotoId()).get()
+		: nullptr;
+	if (isGoodPhoto(photo)) {
+		_photo = photo->createMediaView();
+		_photo->wanted(Data::PhotoSize::Thumbnail, _peer->userpicPhotoOrigin());
+	} else {
+		_photo = nullptr;
+		if (_peer->userpicPhotoUnknown() || (photo && !photo->date)) {
+			_peer->session().api().requestFullPeer(_peer);
+		}
+	}
+	refreshPhoto();
+}
+
+void Userpic::refreshPhoto() {
+	if (!size()) {
+		return;
+	}
+	const auto isNewBigPhoto = [&] {
+		return _photo
+			&& (_photo->image(Data::PhotoSize::Thumbnail) != nullptr)
+			&& (_photo->owner()->id != _userPhotoId || !_userPhotoFull);
+	}();
+	if (isNewBigPhoto) {
+		_userPhotoId = _photo->owner()->id;
+		_userPhotoFull = true;
+		createCache(_photo->image(Data::PhotoSize::Thumbnail));
+	} else if (_userPhoto.isNull()) {
+		createCache(_userpic ? _userpic->image() : nullptr);
+	}
+}
+
+void Userpic::createCache(Image *image) {
+	const auto size = this->size();
+	const auto real = size * cIntRetinaFactor();
+	auto options = Images::Option::Smooth | Images::Option::Circled;
+	// _useTransparency ? (Images::Option::RoundedLarge | Images::Option::RoundedTopLeft | Images::Option::RoundedTopRight | Images::Option::Smooth) : Images::Option::None;
+	if (image) {
+		auto width = image->width();
+		auto height = image->height();
+		if (width > height) {
+			width = qMax((width * real) / height, 1);
+			height = real;
+		} else {
+			height = qMax((height * real) / width, 1);
+			width = real;
+		}
+		_userPhoto = image->pixNoCache(
+			width,
+			height,
+			options,
+			size,
+			size);
+		_userPhoto.setDevicePixelRatio(cRetinaFactor());
+	} else {
+		auto filled = QImage(QSize(real, real), QImage::Format_ARGB32_Premultiplied);
+		filled.setDevicePixelRatio(cRetinaFactor());
+		filled.fill(Qt::transparent);
+		{
+			Painter p(&filled);
+			Ui::EmptyUserpic(
+				Data::PeerUserpicColor(_peer->id),
+				_peer->name
+			).paint(p, 0, 0, size, size);
+		}
+		//Images::prepareRound(filled, ImageRoundRadius::Large, RectPart::TopLeft | RectPart::TopRight);
+		_userPhoto = Images::PixmapFast(std::move(filled));
+	}
+
+	_content.update();
+}
+
+bool Userpic::isGoodPhoto(PhotoData *photo) const {
+	if (!photo || photo->isNull()) {
+		return false;
+	}
+	const auto badAspect = [](int a, int b) {
+		return a > 10 * b;
+	};
+	const auto width = photo->width();
+	const auto height = photo->height();
+	return !badAspect(width, height) && !badAspect(height, width);
+}
+
+} // namespace Calls
--- a/Telegram/SourceFiles/calls/calls_userpic.h
+++ b/Telegram/SourceFiles/calls/calls_userpic.h
@ -0,0 +1,67 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "ui/rp_widget.h"
+#include "ui/effects/animations.h"
+
+class PeerData;
+class Image;
+
+namespace Data {
+class CloudImageView;
+class PhotoMedia;
+} // namespace Data
+
+namespace Calls {
+
+class Userpic final {
+public:
+	Userpic(
+		not_null<QWidget*> parent,
+		not_null<PeerData*> peer,
+		rpl::producer<bool> muted);
+	~Userpic();
+
+	void setVisible(bool visible);
+	void setGeometry(int x, int y, int size);
+	void setMuteLayout(QPoint position, int size, int stroke);
+
+	[[nodiscard]] rpl::lifetime &lifetime() {
+		return _content.lifetime();
+	}
+
+private:
+	void setup(rpl::producer<bool> muted);
+
+	void paint();
+	void setMuted(bool muted);
+	[[nodiscard]] int size() const;
+
+	void processPhoto();
+	void refreshPhoto();
+	[[nodiscard]] bool isGoodPhoto(PhotoData *photo) const;
+	void createCache(Image *image);
+
+	Ui::RpWidget _content;
+
+	not_null<PeerData*> _peer;
+	std::shared_ptr<Data::CloudImageView> _userpic;
+	std::shared_ptr<Data::PhotoMedia> _photo;
+	Ui::Animations::Simple _mutedAnimation;
+	QPixmap _userPhoto;
+	PhotoId _userPhotoId = 0;
+	QPoint _mutePosition;
+	int _muteSize = 0;
+	int _muteStroke = 0;
+	bool _userPhotoFull = false;
+	bool _muted = false;
+
+};
+
+} // namespace Calls
--- a/Show more
+++ b/Show more