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
27 static int roq_write_header(struct AVFormatContext *s)
30 0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, /* fps: */ 0x1E, 0x00
35 for(n=0;n<s->nb_streams;n++) {
36 if (s->streams[n]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
39 if (s->streams[n]->avg_frame_rate.den != 1) {
40 av_log(s, AV_LOG_ERROR, "Frame rate must be integer\n");
41 return AVERROR(EINVAL);
44 if ((fps=s->streams[n]->avg_frame_rate.num) > 255) {
45 av_log(s, AV_LOG_ERROR, "Frame rate may not exceed 255fps\n");
46 return AVERROR(EINVAL);
50 av_log(s, AV_LOG_WARNING, "For vintage compatibility fps must be 30\n");
58 avio_write(s->pb, header, 8);
63 const FFOutputFormat ff_roq_muxer = {
65 .p.long_name = NULL_IF_CONFIG_SMALL("raw id RoQ"),
66 .p.extensions = "roq",
67 .p.audio_codec = AV_CODEC_ID_ROQ_DPCM,
68 .p.video_codec = AV_CODEC_ID_ROQ,
69 .write_header = roq_write_header,
70 .write_packet = ff_raw_write_packet,