[FFmpeg-user] format for internet explorer post 8

Reindl Harald h.reindl at thelounge.net
Sat Mar 28 23:59:29 CET 2015

Am 28.03.2015 um 23:57 schrieb Tim Hiles:
> Are you and ffmpeg suggesting that movflags faststart not be included in
> the command, and that simply changing to -px_fmt yuv420p will play mp4
> files better?  Without the movflags faststart present I've seen certain
> browsers balk at playing mp4s without it

faststart and pixel format are different worlds

faststart means that the client can start playback before the whole 
video is downloaded, not more and not less, in case of web-players it is 
highly recommended

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