Le duodi 22 ventôse, an CCXXIII, Kingsley Turner a écrit : > My daughter made some karaoke-like videos with a bunch of colour-changing > lyric-subtitles into MKV files (with fonts embedded).
That would be ASS subtitles then. > As far as I know, both VLC and MythTV use ffmpeg for the rendering of the > video frames. For the decoding of the video frames. For the rendering of the subtitles elements, they certainly use libass, and for the overlaying of the subtitles elements and the rendering of the frames to screen, they use their own code or other libraries. I have noticed (with MPlayer) that libass can be weirdly slow, weirdly because between rendering at 1280×720 and at 1920×1080, the rendering can go from perfectly real-time to very very slow, much more than the ×2.25 factor for the number of pixels. I have not yet had the courage to investigate. Regards, -- Nicolas George
signature.asc
Description: Digital signature
_______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
