repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * id RoQ (.roq) File muxer | |
| 3 | * Copyright (c) 2007 Vitor Sessak | |
| 4 | * | |
| 5 | * This file is part of FFmpeg. | |
| 6 | * | |
| 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. | |
| 11 | * | |
| 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. | |
| 16 | * | |
| 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 | |
| 20 | */ | |
| 21 | ||
| 22 | #include "avformat.h" | |
| 23 | #include "rawenc.h" | |
| 24 | ||
| 25 | ||
| 26 | static int roq_write_header(struct AVFormatContext *s) | |
| 27 | { | |
| 28 | uint8_t header[] = { | |
| 29 | 0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, /* fps: */ 0x1E, 0x00 | |
| 30 | }; | |
| 31 | int n; | |
| 32 | AVCodecContext *avctx; | |
| 33 | ||
| 34 | // set the actual fps | |
| 35 | for(n=0;n<s->nb_streams;n++) { | |
| 36 | if ((avctx=s->streams[n]->codec)->codec_type == AVMEDIA_TYPE_VIDEO) { | |
| 37 | unsigned int fps; | |
| 38 | ||
| 39 | if (avctx->time_base.num != 1) { | |
| 40 | av_log(avctx, AV_LOG_ERROR, "Frame rate must be integer\n"); | |
| 41 | return AVERROR(EINVAL); | |
| 42 | } | |
| 43 | ||
| 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); | |
| 47 | } | |
| 48 | ||
| 49 | if (fps != 30) { | |
| 50 | av_log(avctx, AV_LOG_WARNING, "For vintage compatibility fps must be 30\n"); | |
| 51 | } | |
| 52 | ||
| 53 | header[6] = fps; | |
| 54 | break; | |
| 55 | } | |
| 56 | } | |
| 57 | ||
| 58 | avio_write(s->pb, header, 8); | |
| 59 | avio_flush(s->pb); | |
| 60 | ||
| 61 | return 0; | |
| 62 | } | |
| 63 | ||
| 64 | AVOutputFormat ff_roq_muxer = { | |
| 65 | .name = "roq", | |
| 66 | .long_name = NULL_IF_CONFIG_SMALL("raw id RoQ"), | |
| 67 | .extensions = "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, | |
| 72 | }; |