repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * MicroDVD subtitle muxer | |
| 3 | * Copyright (c) 2010 Aurelien Jacobs <aurel@gnuage.org> | |
| 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 <inttypes.h> | |
| 23 | #include "avformat.h" | |
| 24 | #include "internal.h" | |
| 25 | ||
| 26 | static int microdvd_write_header(struct AVFormatContext *s) | |
| 27 | { | |
| 28 | AVCodecContext *avctx = s->streams[0]->codec; | |
| 29 | AVRational tb = avctx->time_base; | |
| 30 | ||
| 31 | if (s->nb_streams != 1 || avctx->codec_id != AV_CODEC_ID_MICRODVD) { | |
| 32 | av_log(s, AV_LOG_ERROR, "Exactly one MicroDVD stream is needed.\n"); | |
| 33 | return -1; | |
| 34 | } | |
| 35 | ||
| 36 | if (avctx->extradata && avctx->extradata_size > 0) { | |
| 37 | avio_write(s->pb, "{DEFAULT}{}", 11); | |
| 38 | avio_write(s->pb, avctx->extradata, avctx->extradata_size); | |
| 39 | avio_flush(s->pb); | |
| 40 | } | |
| 41 | ||
| 42 | avpriv_set_pts_info(s->streams[0], 64, tb.num, tb.den); | |
| 43 | return 0; | |
| 44 | } | |
| 45 | ||
| 46 | static int microdvd_write_packet(AVFormatContext *avf, AVPacket *pkt) | |
| 47 | { | |
| 48 | avio_printf(avf->pb, "{%"PRId64"}", pkt->pts); | |
| 49 | if (pkt->duration < 0) | |
| 50 | avio_write(avf->pb, "{}", 2); | |
| 51 | else | |
| 52 | avio_printf(avf->pb, "{%"PRId64"}", pkt->pts + pkt->duration); | |
| 53 | avio_write(avf->pb, pkt->data, pkt->size); | |
| 54 | avio_write(avf->pb, "\n", 1); | |
| 55 | return 0; | |
| 56 | } | |
| 57 | ||
| 58 | AVOutputFormat ff_microdvd_muxer = { | |
| 59 | .name = "microdvd", | |
| 60 | .long_name = NULL_IF_CONFIG_SMALL("MicroDVD subtitle format"), | |
| 61 | .mime_type = "text/x-microdvd", | |
| 62 | .extensions = "sub", | |
| 63 | .write_header = microdvd_write_header, | |
| 64 | .write_packet = microdvd_write_packet, | |
| 65 | .flags = AVFMT_NOTIMESTAMPS, | |
| 66 | .subtitle_codec = AV_CODEC_ID_MICRODVD, | |
| 67 | }; |