2 * id RoQ (.roq) File muxer
3 * Copyright (c) 2007 Vitor Sessak
5 * This file is part of FFmpeg.
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.
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.
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
26 static int roq_write_header(struct AVFormatContext
*s
)
29 0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, /* fps: */ 0x1E, 0x00
32 AVCodecContext
*avctx
;
35 for(n
=0;n
<s
->nb_streams
;n
++) {
36 if ((avctx
=s
->streams
[n
]->codec
)->codec_type
== AVMEDIA_TYPE_VIDEO
) {
39 if (avctx
->time_base
.num
!= 1) {
40 av_log(avctx
, AV_LOG_ERROR
, "Frame rate must be integer\n");
41 return AVERROR(EINVAL
);
44 if ((fps
=avctx
->time_base
.den
) > 255) {
45 av_log(avctx
, AV_LOG_ERROR
, "Frame rate may not exceed 255fps\n");
46 return AVERROR(EINVAL
);
50 av_log(avctx
, AV_LOG_WARNING
, "For vintage compatibility fps must be 30\n");
58 avio_write(s
->pb
, header
, 8);
64 AVOutputFormat ff_roq_muxer
= {
66 .long_name
= NULL_IF_CONFIG_SMALL("raw id RoQ"),
68 .audio_codec
= AV_CODEC_ID_ROQ_DPCM
,
69 .video_codec
= AV_CODEC_ID_ROQ
,
70 .write_header
= roq_write_header
,
71 .write_packet
= ff_raw_write_packet
,