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Thread: Transcoding just for the sake of burning in subtitles

  1. #1
    Join Date
    Feb 2014
    Posts
    83

    Default Transcoding just for the sake of burning in subtitles

    Transcoding is quite a daunting task to do...

    but what if I already have 100% of my videos encoded using handbrake and know without transcoding they play the video + audio 100% perfectly fine on ALL my devices..

    The only thing I really need is burning in the subtitles.

    it's basically just "maintain the video stream" and replace the pixels where applicable for the subtitles with bright white pixels.

    this should be doable at a rate easy of 100+ Mbps

    1) does ffmpeg have such an option: leave video stream 1 intact, PASSTHROUGH and just merge in the white pixels
    2) I suppose ffmpeg being extremely feature rich can do this, how/what profile we chose to make mezzmo doing this?

    Instead of re-encoding a 100% compatible H.264 into a 100% compatible H.264

  2. #2
    Join Date
    Sep 2009
    Posts
    2,677

    Default

    ffmpeg does not have the ability to merge the pixels of the subtitle without re-encoding the video frames. If the video is a DVD rip with picture based subtitles then you will need to pre-transcode the file in Mezzmo http://www.mezzmo.com/wiki/doku.php?id=pre-transcoding_files&s[]=pre&s[]=transcode to burn in the subtitles so that you don't have problems streaming when the encoding is too slow.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
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  3. #3
    Join Date
    Feb 2014
    Posts
    83

    Default

    THanks for the reply Peter.

    I discovered only now Mezzmo in a temp directory EXTRACTS all embedded .srt!!

    So, I rewrote my mkv tools I have written myself to merge back everything into the .mkv

    since upon "refresh all subs" mezzmo then exports in the temp dir..

    basically I have all subs then INSIDE and OUTSIDE the container.. while I as user only need to maintain the ones inside the container.

    So that's a good solution for me..

    Had I know mezzmo creates a temp folder and extracts all subs as "external" LOL

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