aviheadinfo.h

播放被H264_AAC所压缩的avi文件的播放器。

#ifndef _AVIFILE_INFO_H_
#define	_AVIFILE_INFO_H_

//##ModelId=4753BE28030D
typedef struct
{
   long sign;
   long pos;
   long len;
} video_index_entry, *pvideo_index_entry ;

//##ModelId=4753BE28031D
typedef struct
{
   long pos;
   long len;
   long tot;
} audio_index_entry, *paudio_index_entry;

//##ModelId=4753BE28032D
typedef struct
{
   HANDLE   fDes;            /* File descriptor of AVI file */

   long   width;             /* Width  of a video frame */
   long   height;            /* Height of a video frame */
   double fps;               /* Frames per second */
   char   compressor[8];     /* Type of compressor, 4 bytes + padding for 0 byte */
   long   video_strn;        /* Video stream number */
   long   video_bytes;		 /* Total number of bytes of vidoe data*/
   long   video_frames;      /* Number of video frames */
   char   video_tag[4];      /* Tag of video data */
   long   video_pos;         /* Number of next frame to be read
                                (if index present) */

   long   a_fmt;             /* Audio format, see #defines below */
   long   a_chans;           /* Audio channels, 0 for no audio */
   long   a_rate;            /* Rate in Hz */
   long   a_bits;            /* bits per audio sample */
   long   audio_strn;        /* Audio stream number */
   long   audio_bytes;       /* Total number of bytes of audio data */
   long   audio_chunks;      /* Chunks of audio data in the file */
   char   audio_tag[4];      /* Tag of audio data */
   long   audio_posc;        /* Audio position: chunk */
   long   audio_posb;        /* Audio position: byte within chunk */
   double acps;				 /* Audio chunks per second*/
   BYTE	  a_extradata[2];	 /* ... */
   int	  a_extradata_size;  /* ... */
	//Modified by HanYongSu [10/10/2006]
	long	audio_cbsize;
	char	audio_param[50];		 /*Parameter for decoding*/
	long    audio_avg_bytes;

   long   pos;               /* position in file */
   long   n_idx;             /* number of index entries actually filled */
   long   max_idx;           /* number of index entries actually allocated */
   BYTE (*idx)[16];			 /* index entries (AVI idx1 tag) */
   HANDLE		hvideo_index;
   HANDLE		haudio_index;
   pvideo_index_entry lpvideo_index;
   paudio_index_entry lpaudio_index;
   long   last_pos;          /* Position of last frame written */
   long   last_len;          /* Length of last frame written */
   int    must_use_index;    /* Flag if frames are duplicated */
   long   movi_start;

   //
   unsigned long		filesize;
} avi_t;

/* The error codes delivered by avi_open_input_file */

#define AVI_ERR_SIZELIM      -1     /* The write of the data would exceed
                                      the maximum size of the AVI file.
                                      This is more a warning than an error
                                      since the file may be closed safely */

#define AVI_ERR_OPEN         -2     /* Error opening the AVI file - wrong path
                                      name or file nor readable/writable */

#define AVI_ERR_READ         -3     /* Error reading from AVI File */

#define AVI_ERR_WRITE        -4     /* Error writing to AVI File,
                                      disk full ??? */

#define AVI_ERR_WRITE_INDEX  -5     /* Could not write index to AVI file
                                      during close, file may still be
                                      usable */

#define AVI_ERR_CLOSE        -6     /* Could not write header to AVI file
                                      or not truncate the file during close,
                                      file is most probably corrupted */

#define AVI_ERR_NOT_PERM     -7     /* Operation not permitted:
                                      trying to read from a file open
                                      for writing or vice versa */

#define AVI_ERR_NO_MEM       -8     /* malloc failed */

#define AVI_ERR_NO_AVI       -9     /* Not an AVI file */

#define AVI_ERR_NO_HDRL     -10     /* AVI file has no has no header list,
                                      corrupted ??? */

#define AVI_ERR_NO_MOVI     -11     /* AVI file has no has no MOVI list,
                                      corrupted ??? */

#define AVI_ERR_NO_VIDS     -12     /* AVI file contains no video data */

#define AVI_ERR_NO_IDX      -13     /* The file has been opened with
                                      getIndex==0, but an operation has been
                                      performed that needs an index */
#endif	//	_AVIFILE_INFO_H_