2008-10-31 06:56:01     decode h.264 by mplayer

2008-10-31 06:56:01     decode h.264 by mplayer

Wei Jiang (CHINA)

Message: 64517   

Dear all,

We tested mplayer to play an H.264 file on 640x480 LCD. The video is encoded in CIF  at 500kbps.

./mplayer -nosound -vo fbdev -sws 0 -vf scale=640:480 1.mkv

We found the video output is about 5fps.

And 12 fps with no resize;

I know that mpeg4 decoding is very fast. Why h.264 decoder is so slow?

Any advice would be greatly appreciated!

Wei Jiang

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2008-10-31 14:28:06     Re: decode h.264 by mplayer

Robin Getz (UNITED STATES)

Message: 64549   

Wei:

H.264 uses a slightly different video codec than mpeg4 - mpeg4 has received more optimization than H.264 right now inside ffpmeg.

-Robin