On Apr 18, 2008, at 11:48 PM, Joseph Barrows wrote:
use ffmpeg : no (forced)hmm, maybe i should compile it myself then
probably not. ffmpeg support in Gem is not something i would consider stable. (the API is changing so fast...)
i'll leave it out - stability is even more important than reading
wide range of video formats (i can transcode video, having PD
vanish in the middle of a performance is very bad form - happened 4
times last night) my system reports the standard pix_film:: quicktime support pix_film:: libmpeg3 support pix_film:: libaviplay supportthough i think i do want ffmpeg (i think someone mentioned it would
enable support for .flv files)
What might be more useful would be a nice document about how to
transcode files using VLC, and which formats work best for Gem. Most
codecs take a lot of CPU power to decode, so for realtime video work,
it's best to use low CPU codecs, like MJPEG.
.hc
see, does it help if you create a table-of-contents first? iirc, there is a tool mpeg3toc which will create TOC from an mpeg-file which can then be fed into [pix_film] to allow frame accurate
accessing of mpeg-files (and probably the exact number of frames in the file).otoh, it seems that this has stopped working some time ago...
probably you should just check.
i seem to remember using the TOC when i first started using gem,
but yes, it did stop working and i havent checked for some time.gem still causes PD to completely die when given a video file it doesn't like.
which is not fine. i suspect that it is libmpeg1 (if it is really used; check out which APIs are really supported when creating the first [pix_film]) - this library is highly unstable; it's only in the code in case libmpeg3 is missing and you still want to decode mpeg-files.
thanks, i'll try removing mpeg (guess i'll have to compile my own,
oh well, since i'm going to do that any ideas how i would go about
making Gem use opengl 1.5 instead of 2 (which i think it does now),
i want to use it with chromium, which insists on opengl 1.5the crashing is more random than i thought (sometimes happens with
video files that worked a few minutes earlier) (some of the crashes were due to one of my subpatches, that i
removed last night, but i think that was the part causing the GUI
lockups - it was giving a lot of "stack overflow" messages)
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