editlist.h

Motion JPEG编解码器源代码

/*
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef EDITLIST_H
#define EDITLIST_H

#include <lav_io.h>


/* If changing MAX_EDIT_LIST_FILES, the macros below
   also have to be adapted. */

#define MAX_EDIT_LIST_FILES 256

#define N_EL_FRAME(x)  ( (x)&0xffffff )
#define N_EL_FILE(x)   ( ((x)>>24)&0xff )
#define EL_ENTRY(file,frame) ( ((file)<<24) | ((frame)&0xffffff) )

typedef struct
{
   long video_frames;
   long video_width;
   long video_height;
   long video_inter;
   long video_norm;
   double video_fps;
   int video_sar_width; /* sample aspect ratio */
   int video_sar_height;

   long max_frame_size;
   int  MJPG_chroma;
	/* TODO: Need to flag mixed chroma model files? */

   int  has_audio;
   long audio_rate;
   int  audio_chans;
   int  audio_bits;
   int  audio_bps;

	long num_video_files;
	char *(video_file_list[MAX_EDIT_LIST_FILES]);
   lav_file_t *(lav_fd[MAX_EDIT_LIST_FILES]);
   long num_frames[MAX_EDIT_LIST_FILES];
   long *frame_list;

   int  last_afile;
   long last_apos;
}
EditList;

int el_get_video_frame(uint8_t *vbuff, long nframe, EditList *el);  
int el_get_audio_data(uint8_t *abuff, long nframe, EditList *el, int mute);
void read_video_files(char **filename, int num_files, EditList *el, int preserve_pathnames);
int write_edit_list(char *name, long n1, long n2, EditList *el);
int open_video_file(char *filename, EditList *el, int preserve_pathname);
int el_video_frame_data_format(long nframe, EditList *el);

#endif /* ifndef EDITLIST_H */