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subtitles [2019/06/29 10:44] – [Encode DVD with Closed Captioning] beandogsubtitles [2020/10/27 00:49] (current) – [Detect CC] beandog
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   * [[ffmpeg]]   * [[ffmpeg]]
  
 +** WARNING: ** ffmpeg automatically muxes the closed captioning in **with libx264** if it exists, and will not show up in the map output, meaning it cannot be disabled. Also, ''mediainfo'' may or may not display it, while other applications (mplayer, mpv, HandBrake) will. It can be disabled in encoding with ''-a53cc 0'' for libx264. Using ''libx265'' does not encode the CC at all.
 ==== Detect VobSub ==== ==== Detect VobSub ====
  
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 For DVDs, closed captioning streams are embedded in the video stream. For DVDs, closed captioning streams are embedded in the video stream.
 +
 +By default, ffmpeg will copy the Closed Captions. Even passing ''-sn'' will not disable them. They must be selected using lavfi and modified / ignored that way.
  
 The fastest way is to see if it has closed captioning is using ffprobe and looking for ''Closed Captions'' in the output: The fastest way is to see if it has closed captioning is using ffprobe and looking for ''Closed Captions'' in the output:
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 [/STREAM] [/STREAM]
 </code> </code>
- 
  
 ==== Extract CC ==== ==== Extract CC ====
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 <code> <code>
 dvd_copy -o dvd_copy.mpg dvd_copy -o dvd_copy.mpg
-ffmpeg -f lavfi -i move=dvd_copy.mpg[out+subcc] -map 0:s subtitles.srt+ffmpeg -f lavfi -i movie=dvd_copy.mpg[out+subcc] -map 0:s subtitles.srt
 </code> </code>
  
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 <code> <code>
-ffmpeg -f lavfi -i move=dvd_copy.mpg[out+subcc] -map 0:v -map 0:s video.mkv+ffmpeg -f lavfi -i movie=dvd_copy.mpg[out+subcc] -map 0:v -map 0:s video.mkv
 </code> </code>
  

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