79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
#ifndef _READER_PLUGIN_H
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#define _READER_PLUGIN_H
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#include <MediaTrack.h>
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#include "MediaPlugin.h"
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namespace BPrivate { namespace media {
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class PluginManager;
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enum {
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B_MEDIA_SEEK_TO_TIME = 0x10000,
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B_MEDIA_SEEK_TO_FRAME = 0x20000
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};
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class Reader {
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public:
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Reader();
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virtual ~Reader();
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virtual const char* Copyright() = 0;
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virtual status_t Sniff(int32* streamCount) = 0;
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virtual void GetFileFormatInfo(media_file_format* mff) = 0;
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virtual status_t AllocateCookie(int32 streamNumber,
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void** cookie) = 0;
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virtual status_t FreeCookie(void* cookie) = 0;
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virtual status_t GetStreamInfo(void* cookie, int64* frameCount,
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bigtime_t *duration, media_format* format,
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const void** infoBuffer,
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size_t* infoSize) = 0;
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virtual status_t Seek(void* cookie, uint32 flags, int64* frame,
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bigtime_t* time);
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virtual status_t FindKeyFrame(void* cookie, uint32 flags,
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int64* frame, bigtime_t* time);
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virtual status_t GetNextChunk(void* cookie,
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const void** chunkBuffer, size_t* chunkSize,
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media_header* mediaHeader) = 0;
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BDataIO* Source() const;
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virtual status_t Perform(perform_code code, void* data);
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private:
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virtual void _ReservedReader1();
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virtual void _ReservedReader2();
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virtual void _ReservedReader3();
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virtual void _ReservedReader4();
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virtual void _ReservedReader5();
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public: // XXX for test programs only
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void Setup(BDataIO* source);
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BDataIO* fSource;
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// needed for plug-in reference count management
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friend class PluginManager;
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MediaPlugin* fMediaPlugin;
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uint32 fReserved[5];
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};
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class ReaderPlugin : public virtual MediaPlugin {
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public:
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virtual Reader* NewReader() = 0;
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};
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} } // namespace BPrivate::media
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using namespace BPrivate::media;
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#endif // _READER_PLUGIN_H
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