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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6147 | serge | 1 | /* |
| 2 | * id RoQ (.roq) File muxer |
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| 3 | * Copyright (c) 2007 Vitor Sessak |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #include "avformat.h" |
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| 23 | #include "rawenc.h" |
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| 24 | |||
| 25 | |||
| 26 | static int roq_write_header(struct AVFormatContext *s) |
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| 27 | { |
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| 28 | uint8_t header[] = { |
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| 29 | 0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, /* fps: */ 0x1E, 0x00 |
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| 30 | }; |
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| 31 | int n; |
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| 32 | AVCodecContext *avctx; |
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| 33 | |||
| 34 | // set the actual fps |
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| 35 | for(n=0;n |
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| 36 | if ((avctx=s->streams[n]->codec)->codec_type == AVMEDIA_TYPE_VIDEO) { |
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| 37 | unsigned int fps; |
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| 38 | |||
| 39 | if (avctx->time_base.num != 1) { |
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| 40 | av_log(avctx, AV_LOG_ERROR, "Frame rate must be integer\n"); |
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| 41 | return AVERROR(EINVAL); |
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| 42 | } |
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| 43 | |||
| 44 | if ((fps=avctx->time_base.den) > 255) { |
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| 45 | av_log(avctx, AV_LOG_ERROR, "Frame rate may not exceed 255fps\n"); |
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| 46 | return AVERROR(EINVAL); |
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| 47 | } |
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| 48 | |||
| 49 | if (fps != 30) { |
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| 50 | av_log(avctx, AV_LOG_WARNING, "For vintage compatibility fps must be 30\n"); |
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| 51 | } |
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| 52 | |||
| 53 | header[6] = fps; |
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| 54 | break; |
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| 55 | } |
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| 56 | } |
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| 57 | |||
| 58 | avio_write(s->pb, header, 8); |
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| 59 | avio_flush(s->pb); |
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| 60 | |||
| 61 | return 0; |
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| 62 | } |
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| 63 | |||
| 64 | AVOutputFormat ff_roq_muxer = { |
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| 65 | .name = "roq", |
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| 66 | .long_name = NULL_IF_CONFIG_SMALL("raw id RoQ"), |
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| 67 | .extensions = "roq", |
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| 68 | .audio_codec = AV_CODEC_ID_ROQ_DPCM, |
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| 69 | .video_codec = AV_CODEC_ID_ROQ, |
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| 70 | .write_header = roq_write_header, |
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| 71 | .write_packet = ff_raw_write_packet, |
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| 72 | }; |