www.pudn.com > MyPlayerbylqh.rar > DecapsAVI.h

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#ifndef DECAPS_AVI_H 
#define DECAPS_AVI_H 
 
 
 
#include "MediaClasses.h" 
#include "mmreg.h" 
#include  
 
#define AVI_MAX_LEN 2000000000 
#define HEADERBYTES 2048 
#define PAD_EVEN(x) ( ((x)+1) & ~1 ) 
#define AVIIF_KEYFRAME	0x00000010L 
 
 
 
typedef struct 
{ 
  long pos; 
  long len; 
  long flags; 
 
} video_index_entry; 
 
typedef struct 
{ 
   long pos; 
   long len; 
   long tot; 
 
} audio_index_entry; 
 
 
 
class MediaDecapsAVI : public MediaItemDecaps { 
 
public: 
 
	BITMAPINFOHEADER   bitmapinfoheader; 
	MPEGLAYER3WAVEFORMAT waveformatex; 
    long               width;              
    long               height;             
    double             fps;                
    char               compressor[8];      
    long               video_strn;         
    long               video_frames;       
    char               video_tag[4];       
    long               video_pos;          
    long               a_fmt;              
    long               a_chans;            
    long               a_rate;             
    long               a_bits;             
    long               audio_strn;         
    long               audio_bytes;        
    long               audio_chunks;       
    char               audio_tag[4];       
    long               audio_posc;         
    long               audio_posb;         
    long               pos;                
    long               n_idx;              
    long               max_idx;            
    char               (*idx)[16];  
    video_index_entry *video_index; 
    audio_index_entry *audio_index; 
    long               last_pos;           
    long               last_len;           
    int                must_use_index;     
    long               movi_start; 
 
	HANDLE             hIOMutex; 
	MediaItemInput    *input; 
 
	int  IsAVI(); 
	int  FillHeader(int getIndex); 
	int  ReFillIndex(); 
	int  AddIndexEntry(char *tag,  
		 	           long flags,  
	 		           long pos,  
	 		           long len); 
	BOOL isKeyframe(long frame); 
	int  SampleSize(); 
 
public: 
 
	MediaDecapsAVI(); 
	~MediaDecapsAVI(); 
 
 
	media_type_t  GetType(); 
	char         *GetName(); 
	 
	MP_RESULT     Connect(MediaItem *item); 
	MP_RESULT     ReleaseConnections(); 
 
	DWORD         GetCaps(); 
	MP_RESULT     Configure(HINSTANCE hInstance, HWND hwnd); 
 
 
 
	unsigned int  GetNumberOfVideoStreams(); 
	unsigned int  GetNumberOfAudioStreams(); 
 
	unsigned int  GetVideoWidth(unsigned int StreamId); 
	unsigned int  GetVideoHeight(unsigned int StreamId); 
	double        GetVideoFrameRate(unsigned int StreamId); 
	char		 *GetVideoCompression(unsigned int StreamId); 
	BITMAPINFOHEADER *GetVideoHeader(unsigned int StreamId); 
 
	unsigned long GetCurrentVideoFrame(unsigned int StreamId); 
	unsigned long GetTotalVideoFrames(unsigned int StreamId); 
	unsigned long GetTotalVideoTime(unsigned int StreamId); 
	 
	unsigned int  GetAudioBits(unsigned int StreamId); 
	unsigned int  GetAudioChannels(unsigned int StreamId); 
	unsigned int  GetAudioFrequency(unsigned int StreamId); 
	WAVEFORMATEX *GetAudioFormat(unsigned int StreamId); 
 
	unsigned int  GetNextVideoFrameSize(unsigned int StreamId); 
	unsigned int  ReadVideoFrame(unsigned int StreamId, MediaBuffer *mb); 
 
	unsigned int  ReadAudioData(unsigned int StreamId, char *buffer, unsigned int bytes); 
	MP_RESULT     UpdateForSize(); 
 
	MP_RESULT     SeekAudio(unsigned int StreamId, long bytes); 
	MP_RESULT     SeekVideo(unsigned int StreamId, long frame); 
	MP_RESULT     ReSeekAudio(unsigned int StreamId); 
 
	MP_RESULT     Seek(unsigned int videoStreamId, unsigned int audioStreamId, int percent); 
	MP_RESULT     Rewind(unsigned int videoStreamId, unsigned int audioStreamId); 
 
	MP_RESULT     SeekNextKeyFrame(unsigned int StreamId); 
	MP_RESULT     SeekPreviousKeyFrame(unsigned int StreamId); 
}; 
 
#endif