Re: NVrec problem

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Simon Turvey wrote:
> 
> Hi Justin,
> 
> Same problem I'm afraid.  It worked once - when I ran it in a terminal under
> gnome but since then it's crashed each time again.  Warp still shoots up to
> 999 after about 2 secs regardless of codec.
> 
> Regards,
>     Simon
> 
> Here's a dump from the current version:
> 
> v4lgen core init - Device /dev/video
> v4l2 core init - Size: 384x288 from /dev/video
> v4l2 core init - got 49 buffers
> v4lgen core init - got capable v4l2 device: Bttv2(0) - Video.
> oss core init - 44100 bps, 16 bits, mono, from /dev/dsp
> oss core init - 3528 bytes per frame (128,9)
> oss core init - 826 buffer frags required of 512 bytes
> file core init - file: test.mpg
> oss core thread - starting!
> nvrec core - not using any sync() method
> NVrec: initial sync - audio: 994173328328781000 video 994173328324329000
> (delta 0.004452)
> VQ:   2.870 Offset:    0.012 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   3.050 Offset:    0.007 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   3.580 Offset:    0.002 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   4.069 Offset:    0.009 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   4.929 Offset:    0.005 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   5.082 Offset:    0.000 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   5.601 Offset:    0.007 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   6.541 Offset:    0.002 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   6.614 Offset:    0.010 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   7.130 Offset:    0.005 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   8.075 Offset:    0.000 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   8.148 Offset:    0.007 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   8.673 Offset:    0.003 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   9.482 Offset:    0.010 Slipage:   -0.017 Warp: 16 Drop: 0
> VQ:   9.678 Offset:    0.005 Slipage:   -0.017 Warp: 16 Drop: 0
> oss core thread - buffer full - discarding data
> oss core thread - buffer full - discarding data
> oss core thread - buffer full - discarding data

OK.  The problem seems to be the difference in audio rate.  What sound
card/driver are you using?  Somehow it is granting you an audio rate
_very_ different from the requested one, and this is causing the synch
compensator to max out.  Maybe try recording the audio at different
rates, and see if one of them works for you (-r 48000, or -r 22050).

-justin





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