C++ (Cpp) avc_find_startcode 예제들

예제 #1

파일: avc.c 프로젝트: wmyrda/tvheadend

static int
avc_parse_nal_units(sbuf_t *sb, const uint8_t *buf_in, int size)
{
  const uint8_t *p = buf_in;
  const uint8_t *end = p + size;
  const uint8_t *nal_start, *nal_end;

  //printf("CONVERT SIZE %d\n", size);

  size = 0;
  nal_start = avc_find_startcode(p, end);
  while (nal_start < end) {
    while(!*(nal_start++));
    nal_end = avc_find_startcode(nal_start, end);
    /*printf("%4d bytes  %5d : %d\n", nal_end - nal_start,
      nal_start - buf_in,
      nal_end   - buf_in);*/

    int l = nal_end - nal_start;

    if (l) {
      sbuf_put_be32(sb, l);
      sbuf_append(sb, nal_start, l);
      size += 4 + l;
    }
    nal_start = nal_end;
  }
  return size;
}

예제 #2

파일: privatedecoder_vda.cpp 프로젝트: stunami/mythtv

const int avc_parse_nal_units(AVIOContext *pb, const uint8_t *buf_in, int size)
{
    const uint8_t *p = buf_in;
    const uint8_t *end = p + size;
    const uint8_t *nal_start, *nal_end;

    size = 0;
    nal_start = avc_find_startcode(p, end);
    while (nal_start < end)
    {
        while (!*(nal_start++));
        nal_end = avc_find_startcode(nal_start, end);
        avio_wb32(pb, nal_end - nal_start);
        avio_write(pb, nal_start, nal_end - nal_start);
        size += 4 + nal_end - nal_start;
        nal_start = nal_end;
    }
    return size;
}

예제 #3

파일: DVDVideoCodecVDA.cpp 프로젝트: RoboSK/xbmc

const int avc_parse_nal_units(DllAvFormat *av_format_ctx,
  ByteIOContext *pb, const uint8_t *buf_in, int size)
{
  const uint8_t *p = buf_in;
  const uint8_t *end = p + size;
  const uint8_t *nal_start, *nal_end;

  size = 0;
  nal_start = avc_find_startcode(p, end);
  while (nal_start < end)
  {
    while (!*(nal_start++));
    nal_end = avc_find_startcode(nal_start, end);
    av_format_ctx->put_be32(pb, nal_end - nal_start);
    av_format_ctx->put_buffer(pb, nal_start, nal_end - nal_start);
    size += 4 + nal_end - nal_start;
    nal_start = nal_end;
  }
  return size;
}

예제 #4

파일: parser_avc.c 프로젝트: BATYD-Turksat/tvheadend

static int avc_parse_nal_units(sbuf_t *sb, const uint8_t *buf_in, int size)
{
  const uint8_t *p = buf_in;
  const uint8_t *end = p + size;
  const uint8_t *nal_start, *nal_end;

  size = 0;
  nal_start = avc_find_startcode(p, end);
  for (;;) {
    while (nal_start < end && !*(nal_start++));
    if (nal_start == end)
      break;
    
    nal_end = avc_find_startcode(nal_start, end);

    int l = nal_end - nal_start;

    sbuf_put_be32(sb, l);
    sbuf_append(sb, nal_start, l);
    size += 4 + l;
    nal_start = nal_end;
  }
  return size;
}