LCOV - code coverage report
Current view: top level - libavformat - microdvdenc.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 18 20 90.0 %
Date: 2017-12-10 21:22:29 Functions: 2 2 100.0 %

          Line data    Source code
       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           1 : static int microdvd_write_header(struct AVFormatContext *s)
      27             : {
      28           1 :     AVCodecParameters *par = s->streams[0]->codecpar;
      29           1 :     AVRational framerate = s->streams[0]->avg_frame_rate;
      30             : 
      31           1 :     if (s->nb_streams != 1 || par->codec_id != AV_CODEC_ID_MICRODVD) {
      32           0 :         av_log(s, AV_LOG_ERROR, "Exactly one MicroDVD stream is needed.\n");
      33           0 :         return -1;
      34             :     }
      35             : 
      36           1 :     if (par->extradata && par->extradata_size > 0) {
      37           1 :         avio_write(s->pb, "{DEFAULT}{}", 11);
      38           1 :         avio_write(s->pb, par->extradata, par->extradata_size);
      39           1 :         avio_flush(s->pb);
      40             :     }
      41             : 
      42           1 :     avpriv_set_pts_info(s->streams[0], 64, framerate.num, framerate.den);
      43           1 :     return 0;
      44             : }
      45             : 
      46          10 : static int microdvd_write_packet(AVFormatContext *avf, AVPacket *pkt)
      47             : {
      48          10 :     avio_printf(avf->pb, "{%"PRId64"}", pkt->pts);
      49          10 :     if (pkt->duration < 0)
      50           1 :         avio_write(avf->pb, "{}", 2);
      51             :     else
      52           9 :         avio_printf(avf->pb, "{%"PRId64"}", pkt->pts + pkt->duration);
      53          10 :     avio_write(avf->pb, pkt->data, pkt->size);
      54          10 :     avio_write(avf->pb, "\n", 1);
      55          10 :     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             : };

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