<div class="gmail_quote">On Tue, May 12, 2009 at 5:12 PM, Roman Haefeli <span dir="ltr"><<a href="mailto:reduzierer@yahoo.de">reduzierer@yahoo.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im"><br>
<br>
</div>i see. thanks for the explanation. one reason, why i was thinking, that<br>
gem doesn't use hw acceleration was that the cpu power used is quite<br>
similar to the ones, when the same file is played by mplayer or vlc. but<br>
according to what you say, it would probably be still impossible to play<br>
1080p with [pix_film] without hw accel.<br></blockquote><div><br></div><div>I made many GEM based art works that played 4 1080 clips and recorded a live stream to disk all in real time. I think the problem you are having is the H.264 codec, which is intended for ultra-low data bandwidth applications. Switching to Apple Intermediate or one of the professional codecs (DVCPRO_HD or ProRes) will improve performance far more than trying to offload the 100:1 compressed H.264 to the GPU.</div>
</div>