Exemplos de write_webm_seek_element em C++ (Cpp)

Exemplo n.º 1

Arquivo: webmenc.c Projeto: Brainiarc7/libvpx

void write_webm_seek_info(struct EbmlGlobal *ebml) {
  off_t pos;
  EbmlLoc start;
  EbmlLoc startInfo;
  uint64_t frame_time;
  char version_string[64];

  /* Save the current stream pointer. */
  pos = ftello(ebml->stream);

  if (ebml->seek_info_pos)
    fseeko(ebml->stream, ebml->seek_info_pos, SEEK_SET);
  else
    ebml->seek_info_pos = pos;

  Ebml_StartSubElement(ebml, &start, SeekHead);
  write_webm_seek_element(ebml, Tracks, ebml->track_pos);
  write_webm_seek_element(ebml, Cues, ebml->cue_pos);
  write_webm_seek_element(ebml, Info, ebml->segment_info_pos);
  Ebml_EndSubElement(ebml, &start);

  /* Create and write the Segment Info. */
  if (ebml->debug) {
    strcpy(version_string, "vpxenc");
  } else {
    strcpy(version_string, "vpxenc ");
    strncat(version_string,
            vpx_codec_version_str(),
            sizeof(version_string) - 1 - strlen(version_string));
  }

  frame_time = (uint64_t)1000 * ebml->framerate.den
               / ebml->framerate.num;
  ebml->segment_info_pos = ftello(ebml->stream);
  Ebml_StartSubElement(ebml, &startInfo, Info);
  Ebml_SerializeUnsigned(ebml, TimecodeScale, 1000000);
  Ebml_SerializeFloat(ebml, Segment_Duration,
                      (double)(ebml->last_pts_ms + frame_time));
  Ebml_SerializeString(ebml, 0x4D80, version_string);
  Ebml_SerializeString(ebml, 0x5741, version_string);
  Ebml_EndSubElement(ebml, &startInfo);
}

Exemplo n.º 2

Arquivo: webmEBMLwriter.cpp Projeto: FelixdelasPozas/pomodorotimelapse

//------------------------------------------------------------------
void write_webm_seek_info(EbmlGlobal *global)
{
	off_t pos;
	off_t start;
	off_t startInfo;
	uint64_t frame_time;
	char version_string[64];

	/* Save the current stream pointer. */
	pos = ftello(global->stream);

	if (global->seek_info_pos)
	{
		fseeko(global->stream, global->seek_info_pos, SEEK_SET);
	}
	else
	{
		global->seek_info_pos = pos;
	}

	Ebml_StartSubElement(global, &start, SeekHead);
	write_webm_seek_element(global, Tracks, global->track_pos);
	write_webm_seek_element(global, Cues, global->cue_pos);
	write_webm_seek_element(global, Info, global->segment_info_pos);
	Ebml_EndSubElement(global, &start);

	/* Create and write the Segment Info. */
	strcpy(version_string, "DesktopCapture v1.0 - libVPX ");
	strncat(version_string, vpx_codec_version_str(), sizeof(version_string) - 1 - strlen(version_string));

	frame_time = (uint64_t) 1000 * global->framerate.den / global->framerate.num;

	global->segment_info_pos = ftello(global->stream);
	Ebml_StartSubElement(global, &startInfo, Info);
	Ebml_SerializeUnsigned(global, TimecodeScale, 1000000);
	Ebml_SerializeFloat(global, Segment_Duration, (double) (global->last_pts_ms + frame_time));
	Ebml_SerializeString(global, MuxingApp, version_string);
	Ebml_SerializeString(global, WritingApp, version_string);
	Ebml_EndSubElement(global, &startInfo);
}