[Motion-user] ffmpeg and mpeg4 codec

[Mailing L. S. <li...@sv...>]

Hi all,

if I choose mpeg4 ad ffmpeg_video_codec for motion films the file is not
correctly closed, I have to use ffmpeg on_movie_end to obtain a valid
mpeg4, something like this:

ffmpeg -i <filename> -an -b 1800k -vcodec mpeg4 <correctmp4>

only after the encoding via ffmpeg,  mp4info give can detect a valid mp4
format:

mp4info 20080625190633.mp4 
mp4info version 1.6
20080625190633.mp4:
Track	Type	Info
1	video	MPEG-4 Simple @ L1, 563.700 secs, 0 kbps, 720x576 @ 10.000000
fps

However the encoding is cpu intensive and I would like to avoid this
additiona step.

I noticed that motion output a valid mov (mp4info detect it without
problem) if I set mov as ffmpeg_video_codec, why isn't the same for
mpeg4? 

A valid mpeg4 is essential if I want to hint the movie and then stream
via darwin streaming server,

thanks
Nicola