[x264-devel] Mac Quicktime codec

Michel Valstar Michel.Valstar at imperial.ac.uk
Tue Jan 20 12:32:26 CET 2009


I've been using the x264 codec with great pleasure for some time now for the
european SEMAINE project. To play the x264 encoded videos I prefer to use
mplayer, which always works. However, due to limitations of OpenCv, a
computer vision library, I now have to use Quicktime for decoding. I've
found the x264 Quicktime codec 1.1 on Berlios, which seems to be an inactive
project. Installing it helps, as I know don't get a quicktime error and I
can hear the recorded sound. I do not, however, see anything: it's just
playing black frames.

I used mencoder to encode some low quality videos. This is the line I used
for encoding:

mencoder -o avtracks.avi -audiofile atracks.wav -oac copy -ovc x264 -vf
scale=640:480 -x264encopts subq=4:bframes=2:b_pyramid:weight_b vtracks.avi

Any clues, or pointers to new decoders for quicktime?



Dr. Michel Valstar, Research Associate
Department of Computing
Imperial College London
180 Queens' Gate
London SW7 2AZ, U.K.

tel.: +44 20 7594 8336
fax: +44 20 7581 8024
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