path: root/libavformat/framehash.c (plain)
blob: 3ae9092c61de54f6a67085644461a4ffa8a46493

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
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	avio_flush(s->pb);
49	}
50	return 0;
51	}
52