1cabdff1aSopenharmony_ci/* 2cabdff1aSopenharmony_ci * id RoQ (.roq) File muxer 3cabdff1aSopenharmony_ci * Copyright (c) 2007 Vitor Sessak 4cabdff1aSopenharmony_ci * 5cabdff1aSopenharmony_ci * This file is part of FFmpeg. 6cabdff1aSopenharmony_ci * 7cabdff1aSopenharmony_ci * FFmpeg is free software; you can redistribute it and/or 8cabdff1aSopenharmony_ci * modify it under the terms of the GNU Lesser General Public 9cabdff1aSopenharmony_ci * License as published by the Free Software Foundation; either 10cabdff1aSopenharmony_ci * version 2.1 of the License, or (at your option) any later version. 11cabdff1aSopenharmony_ci * 12cabdff1aSopenharmony_ci * FFmpeg is distributed in the hope that it will be useful, 13cabdff1aSopenharmony_ci * but WITHOUT ANY WARRANTY; without even the implied warranty of 14cabdff1aSopenharmony_ci * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15cabdff1aSopenharmony_ci * Lesser General Public License for more details. 16cabdff1aSopenharmony_ci * 17cabdff1aSopenharmony_ci * You should have received a copy of the GNU Lesser General Public 18cabdff1aSopenharmony_ci * License along with FFmpeg; if not, write to the Free Software 19cabdff1aSopenharmony_ci * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20cabdff1aSopenharmony_ci */ 21cabdff1aSopenharmony_ci 22cabdff1aSopenharmony_ci#include "avformat.h" 23cabdff1aSopenharmony_ci#include "rawenc.h" 24cabdff1aSopenharmony_ci 25cabdff1aSopenharmony_ci 26cabdff1aSopenharmony_cistatic int roq_write_header(struct AVFormatContext *s) 27cabdff1aSopenharmony_ci{ 28cabdff1aSopenharmony_ci uint8_t header[] = { 29cabdff1aSopenharmony_ci 0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, /* fps: */ 0x1E, 0x00 30cabdff1aSopenharmony_ci }; 31cabdff1aSopenharmony_ci int n; 32cabdff1aSopenharmony_ci 33cabdff1aSopenharmony_ci// set the actual fps 34cabdff1aSopenharmony_ci for(n=0;n<s->nb_streams;n++) { 35cabdff1aSopenharmony_ci if (s->streams[n]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) { 36cabdff1aSopenharmony_ci unsigned int fps; 37cabdff1aSopenharmony_ci 38cabdff1aSopenharmony_ci if (s->streams[n]->avg_frame_rate.den != 1) { 39cabdff1aSopenharmony_ci av_log(s, AV_LOG_ERROR, "Frame rate must be integer\n"); 40cabdff1aSopenharmony_ci return AVERROR(EINVAL); 41cabdff1aSopenharmony_ci } 42cabdff1aSopenharmony_ci 43cabdff1aSopenharmony_ci if ((fps=s->streams[n]->avg_frame_rate.num) > 255) { 44cabdff1aSopenharmony_ci av_log(s, AV_LOG_ERROR, "Frame rate may not exceed 255fps\n"); 45cabdff1aSopenharmony_ci return AVERROR(EINVAL); 46cabdff1aSopenharmony_ci } 47cabdff1aSopenharmony_ci 48cabdff1aSopenharmony_ci if (fps != 30) { 49cabdff1aSopenharmony_ci av_log(s, AV_LOG_WARNING, "For vintage compatibility fps must be 30\n"); 50cabdff1aSopenharmony_ci } 51cabdff1aSopenharmony_ci 52cabdff1aSopenharmony_ci header[6] = fps; 53cabdff1aSopenharmony_ci break; 54cabdff1aSopenharmony_ci } 55cabdff1aSopenharmony_ci } 56cabdff1aSopenharmony_ci 57cabdff1aSopenharmony_ci avio_write(s->pb, header, 8); 58cabdff1aSopenharmony_ci 59cabdff1aSopenharmony_ci return 0; 60cabdff1aSopenharmony_ci} 61cabdff1aSopenharmony_ci 62cabdff1aSopenharmony_ciconst AVOutputFormat ff_roq_muxer = { 63cabdff1aSopenharmony_ci .name = "roq", 64cabdff1aSopenharmony_ci .long_name = NULL_IF_CONFIG_SMALL("raw id RoQ"), 65cabdff1aSopenharmony_ci .extensions = "roq", 66cabdff1aSopenharmony_ci .audio_codec = AV_CODEC_ID_ROQ_DPCM, 67cabdff1aSopenharmony_ci .video_codec = AV_CODEC_ID_ROQ, 68cabdff1aSopenharmony_ci .write_header = roq_write_header, 69cabdff1aSopenharmony_ci .write_packet = ff_raw_write_packet, 70cabdff1aSopenharmony_ci}; 71