On Sat, 17 Jan 2004, James Finnall wrote:
> option so I used -n 162000 @ 30 fps and feed the stream to
> mpeg2enc. It produced a seamless video stream, then mplex'ed the
> output. Mplayer would play it great. Mastered the DVD and again
> mplayer would play the VOB just fine. Ogle played it OK for awhile
> and then it stopped playing the audio but displayed the video. The
> messages were about needing more space not implented and to send a
Probably the SysV message queue - I've only seen that once or twice.
It sure is beginning to sound like Ogle doesn't like your system
for some reason.
Oh, are you using "-R 2" when doing the encoding? The default I
think was changed to 0 (no B frames) and I know that Ogle does not
like those streams (which use Dual Prime Motion Estimation) - neither
does Apple's MPEG-2 playing module as it turns out.
> sound drop outs. I will state though the drop outs are a little
> different. They are shorter and more regular. I can use mplayer
How regular? And how far apart, roughly, are they?
> problem. Even on the buffer overflow in mplex, it was able to
> handle the segmentation for 30 minutes of the video stream before
> it terminated when I was using 15 second clips. And mplex would go
> through to the end if I used 60 second clips. I doubled this
Ok - looks like trying to reproduce the problem is the next step.
No shortage of jpeg images - and I imagine I can create a 60 minute
.mp2 file out of a CD or whatever.
> first audio stream and about half of the second. Mplex terminated
> again, but with a different error message. It wasn't buffer
> overflow, it was "Too many frame drops - exiting". The errors
> started with "stream e0: data will arrive too late ...." So mplex
> seems to be able to work with the segmetation for awhile. Maybe I
> am bumping some limit like 99 segments or something because of the
> way I am creating the video streams.
mpeg2enc is only seeing 1 segment though if you're creating a
continuous stream of y4m data into the encoder.
Or are you trying to create 99+ chapter points when authoring the DVD?
That I think might be a problem - I'd have to check what the limits
are for number of chapters in a single track.
> But for the moment, at least knowing what will produce something
> that is least playable with mplayer, I can continue to work on my
> projects until the issues are resolved or I know more about what I
Can try to reproduce the problem - first step is to create some
720x540 jpgs (well, actually 720x480 eventually ;)) and get the
jpeg2yuv | mpeg2enc pipeline working.
Cheers,
Steven Schultz
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