w3d/tarkin_sdl_player.c

   1 #include <sys/types.h>
   2 #include <sys/stat.h>
   3 #include <fcntl.h>
   4 #include <unistd.h>
   5 #include <stdint.h>
   6 #include "mem.h"
   7 #include "tarkin.h"
   8 #include "pnm.h"
   9 #include <ogg/ogg.h>
  10
  11 #include <SDL/SDL.h>
  12
  13 #define CHUNK_SIZE 4096
  14
  15 int main (int argc, char **argv)
  16 {
  17    char *fname = "stream.ogg";
  18    uint32_t frame = 0;
  19    uint8_t *rgb;
  20    int fd;
  21    TarkinStream *tarkin_stream;
  22    int nread;
  23    int nheader = 0;
  24    ogg_sync_state oy;
  25    ogg_stream_state os;
  26    ogg_page og;
  27    ogg_packet op;
  28    TarkinInfo ti;
  29    TarkinComment tc;
  30    TarkinTime date;
  31    SDL_Surface * vid_surface = NULL;
  32
  33    char *buffer;
  34
  35    TarkinVideoLayerDesc *layer;
  36
  37    if (argc == 2) {
  38       fname = argv[1];
  39    } else if (argc != 1) {
  40       printf ("\n usage: %s <tarkin_stream>\n\n", argv[0]);
  41       exit (-1);
  42    }
  43
  44    if ((fd = open (fname, O_RDONLY)) < 0) {
  45       printf ("error opening '%s'\n", fname);
  46       exit (-1);
  47    }
  48
  49    // init SDL stuff
  50    if (SDL_Init(SDL_INIT_VIDEO)) {
  51      atexit(SDL_Quit);
  52    }
  53
  54    tarkin_stream = tarkin_stream_new (fd);
  55    ogg_sync_init(&oy);
  56    ogg_stream_init(&os,1);
  57    tarkin_info_init(&ti);
  58    tarkin_comment_init(&tc);
  59    while(1){
  60       buffer = ogg_sync_buffer(&oy, CHUNK_SIZE);
  61       if((nread = read(fd, buffer, CHUNK_SIZE))>0)
  62           ogg_sync_wrote(&oy, nread);
  63       else{
  64           ogg_sync_wrote(&oy,0);
  65       }
  66       if(ogg_sync_pageout(&oy,&og)){
  67           ogg_stream_pagein(&os,&og);
  68           while(ogg_stream_packetout(&os,&op)){
  69              if(op.e_o_s)
  70                 break;
  71              if(nheader<3){ /* 3 first packets to headerin */
  72                 tarkin_synthesis_headerin(&ti, &tc, &op);
  73                 if(nheader == 2){
  74                    tarkin_synthesis_init(tarkin_stream, &ti);
  75                 }
  76                 nheader++;
  77              } else {
  78                 tarkin_synthesis_packetin(tarkin_stream, &op);
  79                 while(tarkin_synthesis_frameout(tarkin_stream, &rgb, 0, &date)==0){
  80                   layer = &tarkin_stream->layer->desc;
  81
  82                   // if SDL_initialized != true, init sdl stuff
  83                   if (!vid_surface)
  84                   {
  85 #ifdef DEBUG
  86  printf("initializing sdl surface...");
  87 #endif
  88                      if ((vid_surface = SDL_SetVideoMode(layer->width, layer->height, 24, SDL_SWSURFACE)) == NULL) {
  89                         tarkin_synthesis_freeframe(tarkin_stream, rgb);
  90                         tarkin_stream_destroy (tarkin_stream);
  91                         close (fd);
  92                         exit(1);
  93                      }
  94                   }
  95
  96                   if (SDL_MUSTLOCK(vid_surface))
  97                      SDL_LockSurface(vid_surface);
  98
  99                   memcpy(vid_surface->pixels, rgb, layer->width * layer->height * 3);  //...
 100
 101                   if (SDL_MUSTLOCK(vid_surface))
 102                      SDL_UnlockSurface(vid_surface);
 103
 104                   SDL_UpdateRect(vid_surface, 0, 0, 0, 0);
 105 /*
 106   sk : removed this stuff
 107                   snprintf(ofname, 11, layer->format == TARKIN_GRAYSCALE ? "out%03d.pgm" : "out%03d.ppm", frame);
 108                   printf ("write '%s' %dx%d\n", ofname, layer->width, layer->height);
 109                   write_pnm (ofname, rgb, layer->width, layer->height);
 110 */
 111                   tarkin_synthesis_freeframe(tarkin_stream, rgb);
 112
 113                   frame ++;
 114                 }
 115              }
 116           }
 117       }
 118       if(nread==0)
 119           break;
 120    }
 121    tarkin_stream_destroy (tarkin_stream);
 122    close (fd);
 123
 124    return 0;
 125 }
 126