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ffmpeg-4.2.2/libavformat/jacosubenc.c 1.42 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * This file is part of FFmpeg.
   *
   * FFmpeg is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * FFmpeg is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  #include "avformat.h"
  #include "rawenc.h"
  
  static int jacosub_write_header(AVFormatContext *s)
  {
      const AVCodecParameters *par = s->streams[0]->codecpar;
  
      if (par->extradata_size) {
          avio_write(s->pb, par->extradata, par->extradata_size - 1);
          avio_flush(s->pb);
      }
      return 0;
  }
  
  AVOutputFormat ff_jacosub_muxer = {
      .name           = "jacosub",
      .long_name      = NULL_IF_CONFIG_SMALL("JACOsub subtitle format"),
      .mime_type      = "text/x-jacosub",
      .extensions     = "jss,js",
      .write_header   = jacosub_write_header,
      .write_packet   = ff_raw_write_packet,
      .flags          = AVFMT_TS_NONSTRICT,
      .subtitle_codec = AV_CODEC_ID_JACOSUB,
  };