On Thu, 1 Jan 2004, Brian J. Murrell wrote:
> I am using mencoder (libavcodec in reality I guess) to create an mpeg1
Hmmm, I knew ffmpeg had mpeg1 encoding capability (from libavcodec)
and it can, if you say the right magic words, produce MPEG1
ES (Elemental Stream) files.
I am fairly sure that the problem is that mencoder produces AVI files
- they're already "muxed" and definitely not MPEG1 ES files and that
is why mplex can't recognize them.
> INFO: [mplex] mplex version 2.2.2 ($Date: 2003/05/13 20:27:15 $)
> **ERROR: [mplex] File test.mpeg1 unrecogniseable!
> INFO: [mplex] File test.mp3 looks like an MPEG Audio stream.
> **ERROR: [mplex] Unrecogniseable file(s)... exiting.
Right - the file's already multiplexed, into an avi stream. The
video portion is MPEG1 but it's inside a container format and mplex
doesn't mplex avi files.
> Is there anything I can do to discover more about what mplex does not
> like about this mpeg1 file?
If you're determined to avoid mpeg2enc then you might use 'ffmpeg'
to do the encoding - it can produce ES files rather than AVI files.
Something like this (suitably modified for your situation of course)
might work better. I was testing the mpeg2 encoding capability
so for mpeg1 you'd change the 'mpeg2video' to be 'mpeg1video' and
of course set the bitrate and bufsize down to reasonable values:
ffmpeg -f yuv4mpegpipe -i susi_120.y4m -b 7000 -ilme -ildct \
-aspect 4/3 \
-top 1 -g 15 -maxrate 7500 -f mpeg1video -vcodec mpeg2video \
-bufsize 1840 -y xxx
MPEG1's most commonly used for VCD (352x240) - is that what you're
doing?
Cheers,
Steven Schultz
-------------------------------------------------------
This SF.net email is sponsored by: IBM Linux Tutorials.
Become an expert in LINUX or just sharpen your skills. Sign up for IBM's
Free Linux Tutorials. Learn everything from the bash shell to sys admin.
Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click
_______________________________________________
Mjpeg-users mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/mjpeg-users
