1 /*
2 * Common functions for the frame{crc,md5} muxers
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/channel_layout.h"
22 #include "internal.h"
23 #include "version.h"
24
ff_framehash_write_header(AVFormatContext * s)25 int ff_framehash_write_header(AVFormatContext *s)
26 {
27 int i;
28
29 if (s->nb_streams && !(s->flags & AVFMT_FLAG_BITEXACT))
30 avio_printf(s->pb, "#software: %s\n", LIBAVFORMAT_IDENT);
31 for (i = 0; i < s->nb_streams; i++) {
32 AVStream *st = s->streams[i];
33 AVCodecParameters *avctx = st->codecpar;
34 char buf[256] = { 0 };
35 avio_printf(s->pb, "#tb %d: %d/%d\n", i, st->time_base.num, st->time_base.den);
36 avio_printf(s->pb, "#media_type %d: %s\n", i, av_get_media_type_string(avctx->codec_type));
37 avio_printf(s->pb, "#codec_id %d: %s\n", i, avcodec_get_name(avctx->codec_id));
38 switch (avctx->codec_type) {
39 case AVMEDIA_TYPE_AUDIO: {
40 int ret = av_channel_layout_describe(&avctx->ch_layout, buf, sizeof(buf));
41 if (ret < 0)
42 return ret;
43 avio_printf(s->pb, "#sample_rate %d: %d\n", i,avctx->sample_rate);
44 avio_printf(s->pb, "#channel_layout_name %d: %s\n", i, buf);
45 break;
46 }
47 case AVMEDIA_TYPE_VIDEO:
48 avio_printf(s->pb, "#dimensions %d: %dx%d\n", i, avctx->width, avctx->height);
49 avio_printf(s->pb, "#sar %d: %d/%d\n", i, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
50 break;
51 }
52 }
53 return 0;
54 }
55