BTW, does anybody here know how to reliably encode a movie for embedding in
PowerPoint slides?
I've used these to convert a set of png's saved by PV, it's the second
line that makes the MS compatible movie.
fmpeg -loop_output 0 -qscale 1 -r 20 -b 9600 -i tpar.%04d.png tpar_vr.mp4
ffmpeg -i tpar_vr.mp4 -qscale 1 -vcodec msmpeg4v2 -acodec mp3 -mbd rd
-flags +4mv+aic -trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2 ms2_tpar_vr.avi
Michael Wild wrote:
On 29. Apr, 2010, at 17:38 , Sven Buijssen wrote:
Michael,
The problem with ffmpeg IMHO is that it is a moving target (as is also declared
on their website). It is almost impossible for ParaView to keep up and just
arbitrarily picking any revision is no solution either, because that will cause
a lot of trouble for packagers.
It's just that PV and VTK for a month or three now supported both the old
outdated ffmpeg version from February 2007 or so (downloadable as a tarball from
the addons section of the VTK software download website) AND the latest ffmpeg.
Up to last Monday. Given the effort spent to re-add support for newer ffmpeg
versions and considering that the change in ffmpeg that breaks it this time in
PV is less complex to work around than last time (headers completely reworked),
I think we shouldn't let go that easily.
OK, I have to agree there. But unless ffmpeg changes their development model,
keeping up with them will always be a PITA... That's one of the reasons why I
created the VTKOggTheoraWriter (and, of course, the licensing/patents issues).
<shameless_plug>I suggest you give the included Ogg/Theora writer a
try.</shameless_plug>.
I'm well aware of your contribution and compile ParaView with
-DVTK_USE_OGGTHEORA_ENCODER:BOOL=ON -DVTK_USE_FFMPEG_ENCODER:BOOL=ON
ever since you announced your git fork of PV on this mailing list, so even
before ogv support has been added to the official source tree. :-) It's just
that some of my users prefer avi over ogv.
Sven
Cool. BTW, does anybody here know how to reliably encode a movie for embedding
in PowerPoint slides? I once found a way to transcode with ffmpeg, but that
didn't work the last time I tried (although all the .avi files I created with
the supposedly correct codec choice played fine in MediaPlayer...) The only
thing that worked was to open the thing in MovieMaker and export it as a
PowerPoint movie from there. It's beyond me why PowerPoint can't just embed and
play about any format+codec that MediaPlayer accepts when it is using the
MediaPlayer components in the first place!
Michael
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