* Copyright 2009-2010, Stephan Aßmus <supertippi@gmx.de>. All rights reserved.
* Copyright 2009, Axel Dörfler, axeld@pinc-software.de.
* Copyright 2008, Maurice Kalinowski. All rights reserved.
* Copyright 2004-2007, Marcus Overhagen. All rights reserved.
*
* Distributed under the terms of the MIT License.
*/
#ifndef _MEDIA_EXTRACTOR_H
#define _MEDIA_EXTRACTOR_H
#include "ReaderPlugin.h"
#include "DecoderPlugin.h"
namespace BPrivate {
namespace media {
class ChunkCache;
struct chunk_buffer;
struct stream_info {
status_t status;
void* cookie;
bool hasCookie;
const void* infoBuffer;
size_t infoBufferSize;
ChunkCache* chunkCache;
chunk_buffer* lastChunk;
media_format encodedFormat;
};
class MediaExtractor {
public:
MediaExtractor(BDataIO* source, int32 flags);
~MediaExtractor();
status_t InitCheck();
void GetFileFormatInfo(
media_file_format* fileFormat) const;
status_t GetMetaData(BMessage* _data) const;
int32 StreamCount();
const char* Copyright();
const media_format* EncodedFormat(int32 stream);
int64 CountFrames(int32 stream) const;
bigtime_t Duration(int32 stream) const;
status_t Seek(int32 stream, uint32 seekTo,
int64* _frame, bigtime_t* _time);
status_t FindKeyFrame(int32 stream, uint32 seekTo,
int64* _frame, bigtime_t* _time) const;
status_t GetNextChunk(int32 stream,
const void** _chunkBuffer,
size_t* _chunkSize,
media_header* mediaHeader);
status_t CreateDecoder(int32 stream, Decoder** _decoder,
media_codec_info* codecInfo);
status_t GetStreamMetaData(int32 stream,
BMessage* _data) const;
void StopProcessing();
private:
void _Init(BDataIO* source, int32 flags);
void _RecycleLastChunk(stream_info& info);
static int32 _ExtractorEntry(void* arg);
void _ExtractorThread();
size_t _CalculateChunkBuffer(int32 stream);
private:
status_t fInitStatus;
sem_id fExtractorWaitSem;
thread_id fExtractorThread;
BDataIO* fSource;
Reader* fReader;
stream_info* fStreamInfo;
int32 fStreamCount;
media_file_format fFileFormat;
};
}
}
using namespace BPrivate::media;
#endif
