| Line | Branch | Exec | Source |
|---|---|---|---|
| 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 | #include "mux.h" | ||
| 26 | |||
| 27 | 1 | static int microdvd_write_header(struct AVFormatContext *s) | |
| 28 | { | ||
| 29 | 1 | AVCodecParameters *par = s->streams[0]->codecpar; | |
| 30 | 1 | AVRational framerate = s->streams[0]->avg_frame_rate; | |
| 31 | |||
| 32 |
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1 | if (s->nb_streams != 1 || par->codec_id != AV_CODEC_ID_MICRODVD) { |
| 33 | ✗ | av_log(s, AV_LOG_ERROR, "Exactly one MicroDVD stream is needed.\n"); | |
| 34 | ✗ | return -1; | |
| 35 | } | ||
| 36 | |||
| 37 |
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1 | if (par->extradata && par->extradata_size > 0) { |
| 38 | 1 | avio_write(s->pb, "{DEFAULT}{}", 11); | |
| 39 | 1 | avio_write(s->pb, par->extradata, par->extradata_size); | |
| 40 | 1 | avio_w8(s->pb, '\n'); | |
| 41 | } | ||
| 42 | |||
| 43 | 1 | avpriv_set_pts_info(s->streams[0], 64, framerate.num, framerate.den); | |
| 44 | 1 | return 0; | |
| 45 | } | ||
| 46 | |||
| 47 | 10 | static int microdvd_write_packet(AVFormatContext *avf, AVPacket *pkt) | |
| 48 | { | ||
| 49 | 10 | avio_printf(avf->pb, "{%"PRId64"}", pkt->pts); | |
| 50 |
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10 | if (pkt->duration < 0) |
| 51 | 1 | avio_write(avf->pb, "{}", 2); | |
| 52 | else | ||
| 53 | 9 | avio_printf(avf->pb, "{%"PRId64"}", pkt->pts + pkt->duration); | |
| 54 | 10 | avio_write(avf->pb, pkt->data, pkt->size); | |
| 55 | 10 | avio_w8(avf->pb, '\n'); | |
| 56 | 10 | return 0; | |
| 57 | } | ||
| 58 | |||
| 59 | const FFOutputFormat ff_microdvd_muxer = { | ||
| 60 | .p.name = "microdvd", | ||
| 61 | .p.long_name = NULL_IF_CONFIG_SMALL("MicroDVD subtitle format"), | ||
| 62 | .p.mime_type = "text/x-microdvd", | ||
| 63 | .p.extensions = "sub", | ||
| 64 | .p.flags = AVFMT_NOTIMESTAMPS, | ||
| 65 | .p.subtitle_codec = AV_CODEC_ID_MICRODVD, | ||
| 66 | .write_header = microdvd_write_header, | ||
| 67 | .write_packet = microdvd_write_packet, | ||
| 68 | }; | ||
| 69 |