DVB Subtitle stream help please

Richard F <lists@xxxxxxxxxxxxxxxxxxxxx> · Tue, 1 Sep 2015 20:58:50 +0100



    I've been testing my H264
      conversion script, and come across a problem with the VDR 1.6
      subtitles

      
      VDR 1.6 (.vdr) recordings 

      The subtitle stream is reported by VLC as type "subtitle", 
      "codec: DVD subtitles (spu)"

    ffmpeg


            reports  "Stream #0:2[0x20]: Subtitle:
        dvd_subtitle"

       For reasons unknown, subtitles
      do not show on VLC (although you can select the subs track), Kodi,
      mplayer and ffplay

      VDR 2.20 + VOMP
      0.4.1 shows subtitles CORRECTLY, so they exist in the stream.

    
      VDR 2.20 (.ts) recordings

    ffmpeg


            reports  "Stream #0:3[0x131](eng): Subtitle: dvb_subtitle
            ([6][0][0][0] / 0x0006)"

          
        Subtitles


      show on VLC, ffplay and VDR 2.20 +
        Kodi (using VNSI)

      Subtitles do not show on
      VDR 2.20 + VOMP

            0.4.1

          
        ffmpeg reports no subtitle data when transcoding / copying the
        VDR 1.6 streams, even when forcing the codec to "dvb_subtitle"

        Obviously if possible I would like to retain the subtitle data
        when transcoding around 8 years of
          recordings.

        
      Could someone please confirm :

      
      a) Is there an issue with VOMP on VDR 2.20 re: subtitles and old
      VDR 1.6 recordings ?

      b) Is there a Linux or windows video player that shows subtitles
      in VDR 1.6  (.vdr) recordings ?

      c) Is there a magic switch in FFMPEG or other tool to recognise /
      transcode / export the "DVD subtitles" ? Or another program ?

      
      If all else fails, I assume it's possible to extract the data
      using functions in old VDR 1.6 code, but that might be a bit
      involved...

      
      Thanks !

      
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