[FFmpeg-user] h264 not played by Flash 11.4 (WinXP)

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Dec 12 09:40:58 CET 2012

Pablo Rodríguez <oinos <at> web.de> writes:

> Input #0, avi, from '20121211_2152_34.avi':
>   Duration: 00:03:26.70, start: 0.000000, bitrate: 5109 kb/s
>     Stream #0:0: Video: msvideo1 (CRAM / 0x4D415243), rgb555le

> Output #0, flv, to '20121211_2152_34.flv':
>   Metadata:
>     encoder         : Lavf54.37.100
>     Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv444p

As Roger correctly guessed, FFmpeg chose yuv444p as output 
colour space (to loose as little information as possible) and 
the flash decoder is incapable of decoding this (valid) output, 
so use -pix_fmt yuv420p to force a lower-quality output colour 

Carl Eugen

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