[FFmpeg-devel] [PATCH] Add support for muxing timed text in mov/mp4/3gp

David Conrad lessen42
Sun Jan 11 08:26:29 CET 2009


This adds support for muxing timed text in mov/mp4/3gp. For the iPod  
mode it works slightly different ("sbtl" rather than "text" for the  
media type) which is the only way iPods recognize it, also causing  
QuickTime to treat it very differently than standard timed text  
(mainly ignoring most style elements and requiring different  
dimensions.) I don't think it's worth making a new CODEC_ID for this  
variant though.

Also, 3GPP TS 26.245 says to use a null media handler (nmhd) but that  
doesn't work for .mov for QuickTime, thus the generic media handler  
(gmhd) for .mov.

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