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• Merge commit ’b36bc81ccaa2fc85dc4bae7dc546c71e8833573d’

  10 février 2014, par Michael Niedermayer

  Merge commit ’b36bc81ccaa2fc85dc4bae7dc546c71e8833573d’
  * commit ’b36bc81ccaa2fc85dc4bae7dc546c71e8833573d’ :
  
    avplay : add support for seeking to chapter marks
  Conflicts :
  
  	doc/ffplay.texi
  
  	ffplay.c
  ffplay uses pageup/down for seeking by +-10min
  
  thus this use of the keys conflicts.
  
  The merge thus uses them to seek to chapters when there are some or
  
  +-10min when there are not
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] doc/ffplay.texi
  • [DH] ffplay.c

• How to get xml/json output when ffprobe could not find codec parameters for a stream

  9 juin 2015, par user2421731

  I was using ffprobe on a mkv file in order to get some info about the chapter structure so as to split the mkv using ffmpeg.

  ffprobe miku.mkv -print_format xml

  However ffprobe encountered an scodec error(does not affect chapter info) and I could not get the info by setting print format. I know there are ways like pipeline to bypass the error, but I still want to get the xml/json file so it can be parsed easily.

  I wonder if there is a way to ingore the error and output the xml/json file or is there a solution to the error. (But I prefer a solution to the former, because I don’t know what any errors I might encounter and I’d like to see it works as long as the chapter info is available)

  The error was like this.

  ffprobe version N-60899-ga8ad7e4 Copyright (c) 2007-2014 the FFmpeg developers
    built on Feb 25 2014 04:04:01 with gcc 4.8.2 (GCC)
    configuration : —enable-gpl —enable-version3 —disable-w32threads —enable-avisynth —enable-bzlib —enable-fontconfig —enable-frei0r —enable-gnutls —enable-iconv —enable-libass —enable-libbluray —enable-libcaca —enable-libfreetype —enable-libgsm —enable-libilbc —enable-libmodplug —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-librtmp —enable-libschroedinger —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvo-aacenc —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libx264 —enable-libx265 —enable-libxavs —enable-libxvid —enable-zlib
    libavutil      52. 66.100 / 52. 66.100
    libavcodec     55. 52.102 / 55. 52.102
    libavformat    55. 33.100 / 55. 33.100
    libavdevice    55. 10.100 / 55. 10.100
    libavfilter     4.  1.103 /  4.  1.103
    libswscale      2.  5.101 /  2.  5.101
    libswresample   0. 18.100 /  0. 18.100
    libpostproc    52.  3.100 / 52.  3.100
  [matroska,webm @ 0000000002945080] Could not find codec parameters for stream 3 (Subtitle : hdmv_pgs_subtitle) : unspecified size
  Consider increasing the value for the ’analyzeduration’ and ’probesize’ options
  Input #0, matroska,webm, from ’[Hatsune Miku Magical Mirai 2013][JPN][BDRIP][1080P][H264_FLAC_DTS-HDMA].mkv’ :
    Metadata :
      encoder : libebml v1.3.0 + libmatroska v1.4.1
      creation_time : 2014-02-18 22:57:12
    Duration : 01:58:00.08, start : 0.000000, bitrate : 16495 kb/s
      Chapter #0.0 : start 0.000000, end 30.030000
      Metadata :
        title : Start
      Chapter #0.1 : start 30.030000, end 149.749000
      Metadata :
        title : 00. Opening Music
  ......
  

• This code is transcode video file using ffmpeg convter. How to handle if video transcoding is fail and get information of failure reason [on hold]

  16 octobre 2016, par Yuvi

  String command ="ffmpeg command for transcode video";
  
  
  
     //System.out.println("command-->"+command);
  
      Process proc = Runtime.getRuntime().exec(command); 
  
  
  
      System.out.println("process-->"+proc);
  
  
  
      BufferedReader reader =  new BufferedReader(new InputStreamReader(proc.getErrorStream()));
  
      System.out.println("reader-->"+reader);
  
      String line = "";
  
      while((line = reader.readLine()) != null) {
  
          System.out.print(line + "\n");
  
      }
  
  
  
      System.out.println("out stream :: "+proc.getOutputStream());