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
write_header(AVFormatContext * s)25 static int write_header(AVFormatContext *s)
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
write_packet(AVFormatContext * s,AVPacket * pkt)33 static int write_packet(AVFormatContext *s, AVPacket *pkt)
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 return 0;
41 }
42
43 AVOutputFormat ff_mkvtimestamp_v2_muxer = {
44 .name = "mkvtimestamp_v2",
45 .long_name = NULL_IF_CONFIG_SMALL("extract pts as timecode v2 format, as defined by mkvtoolnix"),
46 .audio_codec = AV_CODEC_ID_NONE,
47 .video_codec = AV_CODEC_ID_RAWVIDEO,
48 .write_header = write_header,
49 .write_packet = write_packet,
50 };
51