64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop version of Telegram messaging app, see https://telegram.org
|
|
|
|
Telegram Desktop is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
It 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 General Public License for more details.
|
|
|
|
In addition, as a special exception, the copyright holders give permission
|
|
to link the code of portions of this program with the OpenSSL library.
|
|
|
|
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
|
|
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
|
|
*/
|
|
#pragma once
|
|
|
|
class AudioPlayerLoader {
|
|
public:
|
|
AudioPlayerLoader(const FileLocation &file, const QByteArray &data);
|
|
virtual ~AudioPlayerLoader();
|
|
|
|
virtual bool check(const FileLocation &file, const QByteArray &data);
|
|
|
|
virtual bool open(qint64 position = 0) = 0;
|
|
virtual int64 duration() = 0;
|
|
virtual int32 frequency() = 0;
|
|
virtual int32 format() = 0;
|
|
|
|
enum class ReadResult {
|
|
Error,
|
|
NotYet,
|
|
Ok,
|
|
Wait,
|
|
EndOfFile,
|
|
};
|
|
virtual ReadResult readMore(QByteArray &samples, int64 &samplesCount) = 0;
|
|
|
|
void saveDecodedSamples(QByteArray *samples, int64 *samplesCount);
|
|
void takeSavedDecodedSamples(QByteArray *samples, int64 *samplesCount);
|
|
bool holdsSavedDecodedSamples() const;
|
|
|
|
protected:
|
|
FileLocation file;
|
|
bool access = false;
|
|
QByteArray data;
|
|
|
|
QFile f;
|
|
int32 dataPos = 0;
|
|
|
|
bool openFile();
|
|
|
|
private:
|
|
QByteArray _savedSamples;
|
|
int64 _savedSamplesCount = 0;
|
|
bool _holdsSavedSamples = false;
|
|
|
|
};
|