[xine-devel] demux_ts - rate calculation

[Julian S. <ju...@ju...>]

I am just trying to add a proper rate-calculation to the MPEG2-TS demuxer, so 
that it is able to determine the correct length of a TS-Stream.
Therefore I looked at the ts2ps sources.
Now I added some code just after the video-pid autodetection in 
demux_ts_parse_packet. The only problem is, that I don't seem to be able to 
read the whole file to get the needed data.

The first read in the while-loop I do works fine, but the second one gives me 
a size of 0 back - The file should be way longer, so this can't be the 
problem.
Any ideas?

The code looks basically like this:

-----------

    uint8_t mbuf[2096];
    uint8_t buf[188*50];
    if(!this->input->read(this->input, mbuf, 2096))
      printf("Failed to read header\n");

    for ( i = 0; i < 188 ; i++){
      if ( mbuf[i] == 0x47 ) break;
    }
    if ( i == 188){
      fprintf(stderr,"Not a TS\n");
    } else {
      printf("FOUND TS\n");
      memcpy(buf,mbuf+i,188-i);
      memcpy(buf+188-i,mbuf+1880,i);
      i = 188;
    }

    int count = 1;
    uint64_t l = 0;
    int haveread = 0;
    while(count>0) {
      uint16_t apid;

      int tmp_haveread = this->input->read(this->input, buf+i, 188*10-i);
      if(tmp_haveread>0)
        printf("read: %d\n", tmp_haveread);
      haveread += tmp_haveread;
      count = tmp_haveread+i;
      //printf("count: %d\n", count);
      if (count) l+= count;

      for(i=0; i<count; i+=188) {
       /* here comes the bitrate detection */
      }
  }