On Mon, 2010-02-01 at 22:31 +0100, Ed Vaessen wrote:
> I use 64bit OpebSuSE 11.2 with CV 2.1.
> I use high quality JVC footage for a project that consists of tod files.
> They are HDV 1920x1080. I converted them first to mpg using the ffmpeg
> command:

> Rendering to .m2v using file format YUV4MPEG video with pipe:
> 
> ffmpeg -f yuv4mpegpipe -i - -y -r 25 -b 28000000 -f mpeg2video %
> 
> Audio to mp3 using file format mpeg audio 384kb/s layer II
> 
> Muxing them with the command:
> 
> ffmpeg -i rendered.m2v -i rendered.mp3 -vcodec copy -acodec copy output.mpg
> 

Ed,
I find mplex is a little more reliable in terms of audio/video sync'ing
mpgs out of Cinelerra.  I render out 1080P mpegs from my Canon 5D using
a pipe like this:
mpeg2enc --multi-thread 8 --verbose 0 --aspect 3 --format 3 --frame-rate
5 --video-bitrate 24000 --nonvideo-bitrate 384 --interlace-mode 0
--force-b-b-p --video-buffer 448 --video-norm n --keep-hf
--no-constraints --sequence-header-every-gop --min-gop-size 6
--max-gop-size 6 -o $NEW.m2v

Then combine with an MPEG layer II audio file with mplex like so into a
program stream:
mplex -f 3 -b 2000 $AUDIO $VIDEO -o output.ps

I then use ffmpeg to convert the program stream into other formats.  But
mplex is the key to get your vid in sync.  Hasn't failed me yet.

scott


http://crazedmuleproductions.blogspot.com


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