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/***************************************************************************
* Copyright (C) 2006-2020 by Ilya Kotov *
* forkotov02@ya.ru *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef DECODER_FFMPEG_H
#define DECODER_FFMPEG_H
extern "C"{
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libavutil/mathematics.h>
#include <libavutil/dict.h>
}
#include <qmmp/decoder.h>
#define PROBE_BUFFER_SIZE 8192
#define INPUT_BUFFER_SIZE 16384
class DecoderFFmpeg : public Decoder
{
public:
explicit DecoderFFmpeg(const QString &, QIODevice *i);
virtual ~DecoderFFmpeg();
// Standard Decoder API
bool initialize() override;
qint64 totalTime() const override;
int bitrate() const override;
qint64 read(unsigned char *audio, qint64 maxSize) override;
void seek(qint64 time) override;
private:
//helper functions
void fillBuffer();
AVFormatContext *m_formatContext = nullptr;
AVCodecContext *m_codecContext = nullptr;
AVIOContext *m_stream = nullptr;
AVFrame *m_frame = nullptr;
int m_bitrate = 0, m_audioIndex = 0;
QString m_path;
qint64 m_totalTime = 0;
AVPacket *m_pkt = nullptr;
qint64 m_output_size = 0;
uchar *m_input_buf = nullptr;
int64_t m_seekTime = -1;
qint64 m_skipBytes = 0;
int m_channels = 0;
bool m_eof = false;
};
#endif // DECODER_FFMPEG_H
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