727e49c611
The idea was that the Media Extractor could wrap the original source given by BMediaTrack, but all operations on the data go through MediaExtractor anyway. We could probably move ownership of the BDataIO completely into MediaExtractor instead. Change-Id: I846b34b543fb983e60f6adf86cb17e835303267b Reviewed-on: https://review.haiku-os.org/c/1587 Reviewed-by: Stephan Aßmus <superstippi@gmx.de>
104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
/*
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* Copyright 2009-2010, Stephan Aßmus <supertippi@gmx.de>. All rights reserved.
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* Copyright 2009, Axel Dörfler, axeld@pinc-software.de.
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* Copyright 2008, Maurice Kalinowski. All rights reserved.
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* Copyright 2004-2007, Marcus Overhagen. All rights reserved.
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*
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _MEDIA_EXTRACTOR_H
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#define _MEDIA_EXTRACTOR_H
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#include "ReaderPlugin.h"
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#include "DecoderPlugin.h"
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namespace BPrivate {
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namespace media {
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class ChunkCache;
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struct chunk_buffer;
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struct stream_info {
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status_t status;
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void* cookie;
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bool hasCookie;
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const void* infoBuffer;
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size_t infoBufferSize;
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ChunkCache* chunkCache;
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chunk_buffer* lastChunk;
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media_format encodedFormat;
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};
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class MediaExtractor {
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public:
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MediaExtractor(BDataIO* source, int32 flags);
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~MediaExtractor();
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status_t InitCheck();
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void GetFileFormatInfo(
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media_file_format* fileFormat) const;
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status_t GetMetaData(BMessage* _data) const;
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int32 StreamCount();
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const char* Copyright();
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const media_format* EncodedFormat(int32 stream);
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int64 CountFrames(int32 stream) const;
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bigtime_t Duration(int32 stream) const;
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status_t Seek(int32 stream, uint32 seekTo,
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int64* _frame, bigtime_t* _time);
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status_t FindKeyFrame(int32 stream, uint32 seekTo,
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int64* _frame, bigtime_t* _time) const;
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status_t GetNextChunk(int32 stream,
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const void** _chunkBuffer,
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size_t* _chunkSize,
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media_header* mediaHeader);
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status_t CreateDecoder(int32 stream, Decoder** _decoder,
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media_codec_info* codecInfo);
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status_t GetStreamMetaData(int32 stream,
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BMessage* _data) const;
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void StopProcessing();
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private:
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void _Init(BDataIO* source, int32 flags);
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void _RecycleLastChunk(stream_info& info);
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static int32 _ExtractorEntry(void* arg);
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void _ExtractorThread();
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private:
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status_t fInitStatus;
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sem_id fExtractorWaitSem;
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thread_id fExtractorThread;
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BDataIO* fSource;
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Reader* fReader;
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stream_info* fStreamInfo;
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int32 fStreamCount;
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media_file_format fFileFormat;
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};
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} // namespace media
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} // namespace BPrivate
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using namespace BPrivate::media;
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#endif // _MEDIA_EXTRACTOR_H
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