video_codec.h Source File

00001 #ifndef _VIDEO_CODEC_H_
00002 #define _VIDEO_CODEC_H_
00003 
00004 #include "al_sending.h"
00005 #include "al_receiving.h"
00006 #include "vid_sim.h"
00007 
00008 typedef struct {
00009   al_sending_entity *output;
00010   al_receiving_entity *input;
00011   int bitrate;
00012   char input_file[256];       /* video input */
00013   char output_file[256];
00014 
00015   int sequenced;
00016   int retransmit;
00017 
00018 
00019   char label[256];            /* A label (e.g."Remote (carphone)") */
00020 
00021   int first;                  /* First time through code_video */
00022     
00023   int start_time;             /* Time that we started coding the first frame*/
00024 
00025   int last_frame;             /* Last frame coded */
00026 
00027   int done;                   /* are we finished? */
00028 
00029   int simbuffer;
00030 
00031   /**************************** FROM vid_sim.h ******************************/
00032 
00033   int headerlength; /* Global variables */
00034   int pels;
00035   int cpels;
00036   int lines;
00037   int trace;
00038   int advanced;
00039   int syntax_arith_coding;
00040   int pb_frames;
00041   int mv_outside_frame;
00042   int long_vectors;
00043   float target_framerate;
00044   FILE *tf;
00045   
00046   /**************************** FROM vid_main.c *****************************/
00047 
00048   PictImage *prev_image;
00049   PictImage *curr_image;
00050   PictImage *curr_recon;
00051   PictImage *prev_recon;
00052 
00053   /* PB-frame specific */
00054   PictImage *B_recon;
00055   PictImage *B_image;
00056 
00057   Pict *pic;
00058   int first_loop_finished;
00059   unsigned char *image;
00060   float mean_frame_rate, ref_frame_rate, frame_rate, seconds;
00061   int total_frames_passed, PPFlag, targetrate;
00062   int frames,bframes,pframes,wcopies,icopies, write_repeated,pdist,bdist;
00063   int start, end, frame_no, writediff;  
00064   int first_frameskip, chosen_frameskip, orig_frameskip, frameskip;
00065   int QP,QPI;
00066   Bits *bits;
00067   Bits *total_bits;
00068   Bits *intra_bits;
00069   Results *res;
00070   Results *total_res;
00071   Results *b_res;
00072   char *seqfilename;
00073   char *streamname;
00074   char *outputfile;
00075   char *diff_filename;
00076   char *tracefile;
00077 
00078   float DelayBetweenFramesInSeconds;
00079   int CommBacklog;
00080 
00081 
00082   FILE *streamfile;
00083 
00084   /**************************** FROM vid_ratectrl.c *************************/
00085 
00086   /* rate control static variables */
00087 
00088   float B_prev;     /* number of bits spent for the previous frame */
00089   float B_target;   /* target number of bits/picture               */
00090   float global_adj; /* due to bits spent for the previous frame    */
00091   
00092   /**************************** FROM vid_putbits.c **************************/
00093 
00094   unsigned char outbfr;
00095   int outcnt;
00096   int bytecnt;
00097 
00098   /**************************** FROM vid_countbit.c *************************/
00099   
00100   int arith_used;
00101 
00102   int tmndecode;     /* 1 iff want to display using tmndec at end */
00103   int no_coding;     /* 1 if user wants to feed in H.263 file instead of coding */
00104 } video_codec;
00105 
00106 video_codec *new_video_codec(char *name);
00107 /*
00108  * makes a new video codec
00109  */
00110 
00111 #endif