4d89dfc712
regards to locking and seeking. * Furthermore, we now not only cache 4 chunks, but chunk up to a certain memory size (MediaExtractor uses 1 MB for now). * Since I still have occasional hickups, it looks like this wasn't the main cause for our audio problems. Still, this will reduce drive access considerably during play. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34243 a95241bf-73f2-0310-859d-f6bbb57e9c96
93 lines
2.0 KiB
C++
93 lines
2.0 KiB
C++
/*
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* Copyright 2004-2007, Marcus Overhagen. All rights reserved.
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* Copyright 2008, Maurice Kalinowski. All rights reserved.
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* Copyright 2009, Axel Dörfler, axeld@pinc-software.de.
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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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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, int64* _frame,
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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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private:
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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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