haiku/headers/private/media/DecoderPlugin.h

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#ifndef _DECODER_PLUGIN_H
#define _DECODER_PLUGIN_H
#include <MediaTrack.h>
#include <MediaFormats.h>
#include "MediaPlugin.h"
class AddOnManager;
namespace BPrivate { namespace media {
class PluginManager;
class ChunkProvider {
public:
virtual ~ChunkProvider() {};
virtual status_t GetNextChunk(const void** chunkBuffer,
size_t* chunkSize,
media_header* mediaHeader) = 0;
};
class Decoder {
public:
Decoder();
virtual ~Decoder();
virtual void GetCodecInfo(media_codec_info* codecInfo) = 0;
// Setup get's called with the info data from Reader::GetStreamInfo
virtual status_t Setup(media_format* ioEncodedFormat,
const void* infoBuffer,
size_t infoSize) = 0;
virtual status_t NegotiateOutputFormat(
media_format* ioDecodedFormat) = 0;
virtual status_t Seek(uint32 seekTo, int64 seekFrame,
int64* frame, bigtime_t seekTime,
bigtime_t* time) = 0;
virtual status_t Decode(void* buffer, int64* frameCount,
media_header* mediaHeader,
media_decode_info* info = 0) = 0;
status_t GetNextChunk(const void** chunkBuffer,
size_t* chunkSize,
media_header* mediaHeader);
void SetChunkProvider(ChunkProvider* provider);
virtual status_t Perform(perform_code code, void* data);
private:
virtual void _ReservedDecoder1();
virtual void _ReservedDecoder2();
virtual void _ReservedDecoder3();
virtual void _ReservedDecoder4();
virtual void _ReservedDecoder5();
ChunkProvider* fChunkProvider;
// needed for plug-in reference count management
friend class PluginManager;
MediaPlugin* fMediaPlugin;
uint32 fReserved[5];
};
class DecoderPlugin : public virtual MediaPlugin {
public:
DecoderPlugin();
virtual Decoder* NewDecoder(uint index) = 0;
virtual status_t GetSupportedFormats(media_format** formats,
size_t* count) = 0;
};
} } // namespace BPrivate::media
using namespace BPrivate::media;
#endif // _DECODER_PLUGIN_H