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/*
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 "base/bytes.h"
#include "core/file_location.h"
#include "media/streaming/media_streaming_utility.h"
namespace Media {
class AudioPlayerLoader {
public:
AudioPlayerLoader(
const Core::FileLocation &file,
const QByteArray &data,
bytes::vector &&buffer);
virtual ~AudioPlayerLoader();
virtual bool check(const Core::FileLocation &file, const QByteArray &data);
virtual bool open(crl::time positionMs) = 0;
virtual int64 samplesCount() = 0;
virtual int samplesFrequency() = 0;
virtual int sampleSize() = 0;
virtual int format() = 0;
enum class ReadError {
Other,
NotYet,
Wait,
EndOfFile,
};
using ReadResult = std::variant<bytes::const_span, ReadError>;
[[nodiscard]] virtual ReadResult readMore() = 0;
virtual void enqueuePackets(std::deque<FFmpeg::Packet> &&packets) {
Unexpected("enqueuePackets() call on not ChildFFMpegLoader.");
}
virtual void setForceToBuffer(bool force) {
Unexpected("setForceToBuffer() call on not ChildFFMpegLoader.");
}
virtual bool forceToBuffer() const {
return false;
}
void saveDecodedSamples(not_null<QByteArray*> samples);
void takeSavedDecodedSamples(not_null<QByteArray*> samples);
bool holdsSavedDecodedSamples() const;
protected:
Core::FileLocation _file;
bool _access = false;
QByteArray _data;
bytes::vector _bytes;
QFile _f;
int _dataPos = 0;
bool openFile();
private:
QByteArray _savedSamples;
bool _holdsSavedSamples = false;
};
} // namespace Media
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