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mkvtimestamp_v2.c
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1 /*
2  * extract pts as timecode v2, as defined by mkvtoolnix
3  * Copyright (c) 2009 David Conrad
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "avformat.h"
23 #include "internal.h"
24 
26 {
27  static const char *header = "# timecode format v2\n";
28  avio_write(s->pb, header, strlen(header));
29  avpriv_set_pts_info(s->streams[0], 64, 1, 1000);
30  return 0;
31 }
32 
34 {
35  char buf[256];
36  if (pkt->stream_index)
37  av_log(s, AV_LOG_WARNING, "More than one stream unsupported\n");
38  snprintf(buf, sizeof(buf), "%" PRId64 "\n", pkt->dts);
39  avio_write(s->pb, buf, strlen(buf));
40  avio_flush(s->pb);
41  return 0;
42 }
43 
45  .name = "mkvtimestamp_v2",
46  .long_name = NULL_IF_CONFIG_SMALL("extract pts as timecode v2 format, as defined by mkvtoolnix"),
47  .audio_codec = AV_CODEC_ID_NONE,
48  .video_codec = AV_CODEC_ID_RAWVIDEO,
49  .write_header = write_header,
50  .write_packet = write_packet,
51 };