[xine-devel] ffmpeg plugin for xine available, problems with seeking and mmx

[<gu...@us...>]

Hi,

the ffmpeg xine video decoder plugin is now part of the main xine tree. It
works pretty nicely, I upgraded to the latest ffmpeg cvs sources (as of
yesterday evening) and ms mpeg 4, opendivx and motion-jpeg (hey, that's
new! :-) ) are supported.

While hacking this, I noticed two problems and I wonder if these are
xine-specific or just broken in ffmpeg at the moment:

- mmx support: if I enable mmx support in dsputil.c (#define HAVE_MMX)
  I get a very screwed-up (mostly pink #-)) picture.
  For the xine plugin I used intel2gas to convert the nasm sad_mmx.s
  for gas, maybe this went wrong somehow. Perhaps somebody can tell me
  if mmx support is supposed to work before I dig any deeper into this

- seeking: When starting to play back a ms mpeg 4 stream not from the
  beginning but from some point within the stream (so probably not an
  I-Frame) I usually get a floating point exception. Is this supposed to
  work (it does using the microsoft dll) or is there a special trick
  to tell ffmpeg to watch out for the next I-Frame or something like that?

Keep up the great work, ffmpeg is absolutely amazing!

   Guenter

--
time is a funny concept