Date: Tue, 29 Oct 2002 19:42:20 +0100 From: Steve O'Hara-Smith <steve@sohara.org> To: Carl Makin <carl@stagecraft.cx> Cc: freebsd-multimedia@FreeBSD.ORG Subject: Re: FreeBSD 4.7R: no sound when recording with ffmpeg? Message-ID: <20021029194220.7fb532ad.steve@sohara.org> In-Reply-To: <Pine.BSF.4.21.0210292118440.11617-100000@brain.stagecraft.cx> References: <20021028202230.1283e8cd.steve@sohara.org> <Pine.BSF.4.21.0210292118440.11617-100000@brain.stagecraft.cx>
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On Tue, 29 Oct 2002 21:37:14 +1100 (EST)
Carl Makin <carl@stagecraft.cx> wrote:
CM> On Mon, 28 Oct 2002, Steve O'Hara-Smith wrote:
CM> > At what resolution ? I'm impressed if a Celeron 600 can keep
CM> > up with full resolution (720x576 for PAL).
CM>
CM> 384x288
CM>
CM> Given that I'm having problems at that I haven't tried the patch to
CM> get full frame. :)
No don't :)
CM> Ok. Tried it. It is better, but still out by a couple of seconds
CM> after 5 minutes. I'm using the following command line;
Hmm, better is useful. Still I would have thought it should have
been able to catch up on any missed frames given a 60% average.
CM> ffmpeg -vcodec mpeg1video -me zero -intra -b 7200 -s 384x288 test1.mpg
Try pushing up to -b 9600 and see if it helps.
CM> It only uses around 60% CPU with this command line, and 90% CPU if I
CM> omit the '-intra'. Both attempts had sync problems.
Were they worse on the 90% attempt ?
CM> I'm using mplayer to play the video back...
What version ? ISTR a creeping sync problem in mplayer in the
past.
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