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

Document created by Aaronwu Employee on Aug 8, 2013
Version 1Show Document
  • View in full screen mode

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

 

 

QuoteReplyEditDelete

 

 

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

Attachments

    Outcomes