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 "internal.h"
22
ff_framehash_write_header(AVFormatContext * s)23 int ff_framehash_write_header(AVFormatContext *s)
24 {
25 int i;
26
27 if (s->nb_streams && !(s->flags & AVFMT_FLAG_BITEXACT))
28 avio_printf(s->pb, "#software: %s\n", LIBAVFORMAT_IDENT);
29 for (i = 0; i < s->nb_streams; i++) {
30 AVStream *st = s->streams[i];
31 AVCodecParameters *avctx = st->codecpar;
32 char buf[256] = { 0 };
33 avio_printf(s->pb, "#tb %d: %d/%d\n", i, st->time_base.num, st->time_base.den);
34 avio_printf(s->pb, "#media_type %d: %s\n", i, av_get_media_type_string(avctx->codec_type));
35 avio_printf(s->pb, "#codec_id %d: %s\n", i, avcodec_get_name(avctx->codec_id));
36 switch (avctx->codec_type) {
37 case AVMEDIA_TYPE_AUDIO:
38 av_get_channel_layout_string(buf, sizeof(buf), avctx->channels, avctx->channel_layout);
39 avio_printf(s->pb, "#sample_rate %d: %d\n", i,avctx->sample_rate);
40 avio_printf(s->pb, "#channel_layout %d: %"PRIx64"\n", i,avctx->channel_layout);
41 avio_printf(s->pb, "#channel_layout_name %d: %s\n", i, buf);
42 break;
43 case AVMEDIA_TYPE_VIDEO:
44 avio_printf(s->pb, "#dimensions %d: %dx%d\n", i, avctx->width, avctx->height);
45 avio_printf(s->pb, "#sar %d: %d/%d\n", i, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
46 break;
47 }
48 }
49 return 0;
50 }
51