58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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namespace FFMpeg {
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struct AVPacketDataWrap;
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} // namespace FFMpeg
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class AudioPlayerLoader {
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public:
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AudioPlayerLoader(const FileLocation &file, const QByteArray &data, base::byte_vector &&bytes);
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virtual ~AudioPlayerLoader();
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virtual bool check(const FileLocation &file, const QByteArray &data);
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virtual bool open(TimeMs positionMs) = 0;
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virtual int64 samplesCount() = 0;
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virtual int samplesFrequency() = 0;
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virtual int format() = 0;
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enum class ReadResult {
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Error,
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NotYet,
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Ok,
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Wait,
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EndOfFile,
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};
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virtual ReadResult readMore(QByteArray &samples, int64 &samplesCount) = 0;
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virtual void enqueuePackets(QQueue<FFMpeg::AVPacketDataWrap> &packets) {
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Unexpected("enqueuePackets() call on not ChildFFMpegLoader.");
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}
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void saveDecodedSamples(QByteArray *samples, int64 *samplesCount);
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void takeSavedDecodedSamples(QByteArray *samples, int64 *samplesCount);
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bool holdsSavedDecodedSamples() const;
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protected:
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FileLocation _file;
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bool _access = false;
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QByteArray _data;
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base::byte_vector _bytes;
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QFile _f;
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int _dataPos = 0;
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bool openFile();
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private:
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QByteArray _savedSamples;
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int64 _savedSamplesCount = 0;
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bool _holdsSavedSamples = false;
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};
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