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Diffstat (limited to 'mediaplugin/src/plugins/media/ffmpeg/ffmpeg_audio_decode.h')
-rw-r--r--mediaplugin/src/plugins/media/ffmpeg/ffmpeg_audio_decode.h257
1 files changed, 0 insertions, 257 deletions
diff --git a/mediaplugin/src/plugins/media/ffmpeg/ffmpeg_audio_decode.h b/mediaplugin/src/plugins/media/ffmpeg/ffmpeg_audio_decode.h
deleted file mode 100644
index c0d1b288..00000000
--- a/mediaplugin/src/plugins/media/ffmpeg/ffmpeg_audio_decode.h
+++ /dev/null
@@ -1,257 +0,0 @@
-/* UltraStar Deluxe - Karaoke Game
- *
- * UltraStar Deluxe is the legal property of its developers, whose names
- * are too numerous to list here. Please refer to the COPYRIGHT
- * file distributed with this source distribution.
- *
- * 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; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- * $URL$
- * $Id$
- */
-#ifndef _FFMPEG_AUDIO_DECODE_H_
-#define _FFMPEG_AUDIO_DECODE_H_
-
-#include "ffmpeg_core.h"
-#include "core/plugin_audio_decode.h"
-
-// TODO: The factor 3/2 might not be necessary as we do not need extra
-// space for synchronizing as in the tutorial.
-#define AUDIO_BUFFER_SIZE ((AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2)
-
-extern const audioDecoderInfo_t audioDecoderInfo;
-
-class FFmpegAudioDecodeStream : public PluginDecodeStream, private Thread {
-private:
- Mutex _stateLock;
-
- bool _eofState; // end-of-stream flag (locked by StateLock)
- bool _errorState; // error flag (locked by StateLock)
-
- bool _quitRequest; // (locked by StateLock)
- Condition _parserIdleCond;
-
- // parser pause/resume data
- bool _parserLocked;
- int _parserPauseRequestCount;
- Condition _parserUnlockedCond;
- Condition _parserResumeCond;
-
- bool _seekRequest; // (locked by StateLock)
- int _seekFlags; // (locked by StateLock)
- double _seekPos; // stream position to seek for (in secs) (locked by StateLock)
- bool _seekFlush; // true if the buffers should be flushed after seeking (locked by StateLock)
- Condition _seekFinishedCond;
-
- bool _loop; // (locked by StateLock)
-
- PacketQueue _packetQueue;
-
- AudioFormatInfo _formatInfo;
-
- // FFmpeg specific data
- AVFormatContext *_formatCtx;
- AVCodecContext *_codecCtx;
- AVCodec *_codec;
-
- int _audioStreamIndex;
- AVStream *_audioStream;
- double _audioStreamPos; // stream position in seconds (locked by DecoderLock)
-
- // decoder pause/resume data
- bool _decoderLocked;
- int _decoderPauseRequestCount;
- Condition _decoderUnlockedCond;
- Condition _decoderResumeCond;
-
- // state-vars for DecodeFrame (locked by DecoderLock)
- AVPacket _audioPaket;
- AVPacket _audioPaketTemp;
- int _audioPaketSilence; // number of bytes of silence to return
-
- // state-vars for AudioCallback (locked by DecoderLock)
- int _audioBufferPos;
- int _audioBufferSize;
- DECLARE_ALIGNED(16, uint8_t, _audioBuffer[AUDIO_BUFFER_SIZE]);
-
- IPath _filename;
-
-private:
- FFmpegAudioDecodeStream();
-
- void setPositionIntern(double time, bool flush, bool blocking);
-
- void setEOF(bool state) {
- Mutex::RegionLock lock(_stateLock);
- _eofState = state;
- }
-
- void setError(bool state) {
- Mutex::RegionLock lock(_stateLock);
- _errorState = state;
- }
-
- bool isSeeking() {
- Mutex::RegionLock lock(_stateLock);
- return _seekRequest;
- }
-
- bool isQuit() {
- Mutex::RegionLock lock(_stateLock);
- return _quitRequest;
- }
-
- bool parseLoop();
-
- int decodeFrame(uint8_t *buffer, int bufferSize);
- void flushCodecBuffers();
-
- bool _open(const IPath &filename);
- void close();
-
-public:
- virtual ~FFmpegAudioDecodeStream() {
- close();
- }
-
- static FFmpegAudioDecodeStream* open(const IPath &filename);
-
- virtual double getLength();
-
- virtual const AudioFormatInfo &getAudioFormatInfo() {
- return _formatInfo;
- }
-
- virtual double getPosition();
- virtual void setPosition(double time);
-
- virtual bool getLoop() {
- Mutex::RegionLock lock(_stateLock);
- return _loop;
- }
-
- virtual void setLoop(bool Enabled) {
- Mutex::RegionLock lock(_stateLock);
- _loop = Enabled;
- }
-
- virtual bool isEOF() {
- Mutex::RegionLock lock(_stateLock);
- return _eofState;
- }
-
- virtual bool isError() {
- Mutex::RegionLock lock(_stateLock);
- return _errorState;
- }
-
- virtual int readData(uint8_t *buffer, int bufferSize);
-
-public:
- int run();
-
-public:
- class ParserLock {
- private:
- FFmpegAudioDecodeStream *_stream;
- public:
- // Note: pthreads wakes threads waiting on a mutex in the order of their
- // priority and not in FIFO order. SDL does not provide any option to
- // control priorities. This might (and already did) starve threads waiting
- // on the mutex (e.g. SetPosition) making usdx look like it was froozen.
- // Instead of simply locking the critical section we set a ParserLocked flag
- // instead and give priority to the threads requesting the parser to pause.
- ParserLock(FFmpegAudioDecodeStream *stream) : _stream(stream) {
- Mutex::RegionLock lock(_stream->_stateLock);
- while (_stream->_parserPauseRequestCount > 0)
- _stream->_parserResumeCond.wait(_stream->_stateLock);
- _stream->_parserLocked = true;
- }
-
- ~ParserLock() {
- Mutex::RegionLock lock(_stream->_stateLock);
- _stream->_parserLocked = false;
- _stream->_parserUnlockedCond.broadcast();
- }
- };
-
- class ParserPauser {
- private:
- FFmpegAudioDecodeStream *_stream;
- public:
- ParserPauser(FFmpegAudioDecodeStream *stream) : _stream(stream) {
- if (Thread::getCurrentThreadID() == _stream->getThreadID())
- return;
-
- {
- Mutex::RegionLock lock(_stream->_stateLock);
- ++_stream->_parserPauseRequestCount;
- while (_stream->_parserLocked)
- _stream->_parserUnlockedCond.wait(_stream->_stateLock);
- }
- }
-
- ~ParserPauser() {
- if (Thread::getCurrentThreadID() == _stream->getThreadID())
- return;
-
- {
- Mutex::RegionLock lock(_stream->_stateLock);
- --_stream->_parserPauseRequestCount;
- _stream->_parserResumeCond.signal();
- }
- }
- };
-
- class DecoderLock {
- private:
- FFmpegAudioDecodeStream *_stream;
- public:
- // prioritize pause requests
- DecoderLock(FFmpegAudioDecodeStream *stream) : _stream(stream) {
- Mutex::RegionLock lock(_stream->_stateLock);
- while (_stream->_decoderPauseRequestCount > 0)
- _stream->_decoderResumeCond.wait(_stream->_stateLock);
- _stream->_decoderLocked = true;
- }
-
- ~DecoderLock() {
- Mutex::RegionLock lock(_stream->_stateLock);
- _stream->_decoderLocked = false;
- _stream->_decoderUnlockedCond.broadcast();
- }
- };
-
- class DecoderPauser {
- private:
- FFmpegAudioDecodeStream *_stream;
- public:
- DecoderPauser(FFmpegAudioDecodeStream *stream) : _stream(stream) {
- Mutex::RegionLock lock(_stream->_stateLock);
- ++_stream->_decoderPauseRequestCount;
- while (_stream->_decoderLocked)
- _stream->_decoderUnlockedCond.wait(_stream->_stateLock);
- }
-
- ~DecoderPauser() {
- Mutex::RegionLock lock(_stream->_stateLock);
- --_stream->_decoderPauseRequestCount;
- _stream->_decoderResumeCond.signal();
- }
- };
-};
-
-#endif /* _FFMPEG_AUDIO_DECODE_H_ */