[FFmpeg-user] hardcode dvdsub subtitle from separate file

Nicolas George nicolas.george at normalesup.org
Wed Jun 19 23:18:26 CEST 2013

Le primidi 1er messidor, an CCXXI, thistle at phwaap.com a écrit :
> [mpeg @ 0x80b4e4a20] sub2video: using 720x576 canvas
> [Parsed_overlay_0 @ 0x80b4e2e20] Overlay area (0,0)<->(720,576) not within
> the main area (0,0)<->(640,272) or zero-sized

The problem is obvious here: the subtitles are made for a 720×576 video (or
assumed to be) while your video is 640×272. You need to scale/crop one or
the other. Downscaling the subtitles to 640×360 and then cropping to 640×272
is probably what happened to the original video.


  Nicolas George
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