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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * MicroDVD subtitle muxer |
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| 3 | * Copyright (c) 2010 Aurelien Jacobs |
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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 |
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| 23 | #include "avformat.h" |
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| 24 | #include "internal.h" |
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| 25 | |||
| 26 | static int microdvd_write_header(struct AVFormatContext *s) |
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| 27 | { |
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| 28 | AVCodecContext *avctx = s->streams[0]->codec; |
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| 29 | AVRational tb = avctx->time_base; |
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| 30 | |||
| 31 | if (s->nb_streams != 1 || avctx->codec_id != AV_CODEC_ID_MICRODVD) { |
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| 32 | av_log(s, AV_LOG_ERROR, "Exactly one MicroDVD stream is needed.\n"); |
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| 33 | return -1; |
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| 34 | } |
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| 35 | |||
| 36 | if (avctx->extradata && avctx->extradata_size > 0) { |
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| 37 | avio_write(s->pb, "{DEFAULT}{}", 11); |
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| 38 | avio_write(s->pb, avctx->extradata, avctx->extradata_size); |
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| 39 | avio_flush(s->pb); |
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| 40 | } |
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| 41 | |||
| 42 | avpriv_set_pts_info(s->streams[0], 64, tb.num, tb.den); |
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| 43 | return 0; |
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| 44 | } |
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| 45 | |||
| 46 | static int microdvd_write_packet(AVFormatContext *avf, AVPacket *pkt) |
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| 47 | { |
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| 48 | avio_printf(avf->pb, "{%"PRId64"}", pkt->pts); |
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| 49 | if (pkt->duration < 0) |
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| 50 | avio_write(avf->pb, "{}", 2); |
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| 51 | else |
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| 52 | avio_printf(avf->pb, "{%"PRId64"}", pkt->pts + pkt->duration); |
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| 53 | avio_write(avf->pb, pkt->data, pkt->size); |
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| 54 | avio_write(avf->pb, "\n", 1); |
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| 55 | return 0; |
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| 56 | } |
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| 57 | |||
| 58 | AVOutputFormat ff_microdvd_muxer = { |
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| 59 | .name = "microdvd", |
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| 60 | .long_name = NULL_IF_CONFIG_SMALL("MicroDVD subtitle format"), |
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| 61 | .mime_type = "text/x-microdvd", |
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| 62 | .extensions = "sub", |
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| 63 | .write_header = microdvd_write_header, |
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| 64 | .write_packet = microdvd_write_packet, |
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| 65 | .flags = AVFMT_NOTIMESTAMPS, |
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| 66 | .subtitle_codec = AV_CODEC_ID_MICRODVD, |
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| 67 | }; |