After further testing, it seems like it's a combo of aspect and bframes.
Setting aspect to 2 and bframes to 3, REALLY makes the video jumpy
Setting aspect to 1 and bframes to 3, KIND of makes the video jumpy
Setting aspect to 2 and bframes to 2, Still jumpy but not as bad as line
above
Setting aspect to 1 and bframes to 2, very smooth
Lesson learned!
On 4/22/07, Justin Wetherell <[EMAIL PROTECTED]> wrote:
At this point, I'm not really sure why it works but here is the debug I
used to solve the problem.
WORKING DEBUG
2007/04/22 14:54 EDT [-] CODEC::aspect: 1
2007/04/22 14:54 EDT [-] CODEC::audio_bitmask: 0x69
2007/04/22 14:54 EDT [-] CODEC::bfrmes: 2
2007/04/22 14:54 EDT [-] CODEC::bitrate_mode: 0
2007/04/22 14:54 EDT [-] CODEC::bitrate: 6000000
2007/04/22 14:54 EDT [-] CODEC::bitrate_peak: 8000000
2007/04/22 14:54 EDT [-] CODEC::dnr_mode: 0
2007/04/22 14:54 EDT [-] CODEC::dnr_spatial: 0
2007/04/22 14:54 EDT [-] CODEC::dnr_temporal: 0
2007/04/22 14:54 EDT [-] CODEC::dnr_type: 0
2007/04/22 14:54 EDT [-] CODEC::framerate: 0
2007/04/22 14:54 EDT [-] CODEC::framespergop: 15
2007/04/22 14:54 EDT [-] CODEC::gop_closure: 1
2007/04/22 14:54 EDT [-] CODEC::pulldown: 0
2007/04/22 14:54 EDT [-] CODEC::stream_type: 0
NOT WORKING DEBUG
2007/04/22 14:54 EDT [-] CODEC::aspect: 2
2007/04/22 14:54 EDT [-] CODEC::audio_bitmask: 0x69
2007/04/22 14:54 EDT [-] CODEC::bfrmes: 3
2007/04/22 14:54 EDT [-] CODEC::bitrate_mode: 0
2007/04/22 14:54 EDT [-] CODEC::bitrate: 4000000
2007/04/22 14:54 EDT [-] CODEC::bitrate_peak: 4000000
2007/04/22 14:54 EDT [-] CODEC::dnr_mode: 0
2007/04/22 14:54 EDT [-] CODEC::dnr_spatial: 0
2007/04/22 14:54 EDT [-] CODEC::dnr_temporal: 0
2007/04/22 14:54 EDT [-] CODEC::dnr_type: 0
2007/04/22 14:54 EDT [-] CODEC::framerate: 0
2007/04/22 14:54 EDT [-] CODEC::framespergop: 15
2007/04/22 14:54 EDT [-] CODEC::gop_closure: 1
2007/04/22 14:54 EDT [-] CODEC::pulldown: 0
2007/04/22 14:54 EDT [-] CODEC::stream_type: 0
I basically just set the TV_IVTV options to the first set above and it
started working. I got those options by looking at the "default" options
that were set when I modprobed ivtv. I originally thought it might be the
"aspect" but I changed that to 2 and it still worked, I think it might be
the b-frames but I have to futhur test that. But all in all, it's working
again.
Here is my current TV_IVTV options for kernel 2.6.18.8 with ivtv driver
0.10.1
TV_IVTV_OPTIONS = {
'input' : 4,
'resolution' : '720x480',
'aspect' : 1,
'audio_bitmask' : 233,
'bframes' : 2,
'bitrate_mode' : 0,
'bitrate' : 6000000,
'bitrate_peak' : 8000000,
'dnr_mode' : 0,
'dnr_spatial' : 0,
'dnr_temporal' : 0,
'dnr_type' : 0,
'framerate' : 0,
'framespergop' : 15,
'gop_closure' : 1,
'pulldown' : 0,
'stream_type' : 0,
}
On 4/22/07, Duncan Webb < [EMAIL PROTECTED]> wrote:
>
> Justin Wetherell wrote:
> > Actually, that wasn't the solution. Apparently Freevo is somewhat at
> > fault although I haven't found a solution yet.
>
> Hmm, what do you mean by shaky?
> If we set the DEBUG level to 3 or more freevo will report the ivtv and
> v4l ioctls that are being sent.
>
> I've noticed that a PVR-350 recordings are not smooth but the PVR-500
> are smooth but the quality is poorer than the 350.
>
> My first guess is that your analysis is correct and it may be a setting
> that is either incorrect or causes the driver to misbehave.
>
> Duncan
>
> > When I reboot and run "cat /dev/video0 > /opt/media/tv/test.mpg" the
> > resulting file looks fine but if I record from Freevo, it comes out
> > shaky. If I then exit Freevo and try the same command from above then
> > the resulting file comes out shaky. So, it looks like Freevo is
> setting
> > some option for ivtv that makes the recording shaky.
> >
> > I've run "v4l2-ctl --all" both before and after Freevo recording and
> the
> > output is the same. So I really don't know what the next step should
> be.
> >
> > On 4/22/07, *Justin Wetherell* <[EMAIL PROTECTED]
> > <mailto:[EMAIL PROTECTED]>> wrote:
> >
> > I solved the shaky issues by going back to the old firmware
> located:
> > http://dl.ivtvdriver.org/ivtv/firmware/HcwMakoB.ROM
> > < http://dl.ivtvdriver.org/ivtv/firmware/HcwMakoB.ROM>
> >
> > HcwMakoB.ROM
> >
> > You will have to rename it to v4l-cx25840.fw if you want to
> use
> > this firmware instead.
> >
> >
> > You'll have to rename it, see above.
> >
> > On 4/22/07, *Justin Wetherell* < [EMAIL PROTECTED]
> > <mailto:[EMAIL PROTECTED]>> wrote:
> >
> > Hello Hans/All,
> >
> > I've just upgraded to Slackware 11 with a 2.6.18.8
> > <http://2.6.18.8> kernel and the new ivtv-0.10.1 driver. I am
> > having the same issues with shaky video and fine audio. Did
> you
> > ever get this figured out?
> >
> > Thanks,
> > Justin
> >
> >
> > On 3/27/07, *Hans Meine* < [EMAIL PROTECTED]
> > <mailto:[EMAIL PROTECTED]>> wrote:
> >
> > 4.) In parallel, I tried Linux-2.6.20.1 (I have the same
> > kernel running
> > successfully on several other computers) with
> > ivtv-0.10.1. Here, the
> > recordings are not fluent, but every half a second to
> > second, the video stops
> > which makes all movements appear jerky. The audio is fine
> > though. I planned
> > to post more information by analyzing the stream, but my
> > wife deleted all
> > recordings and the system is currently booted into the
> older
> > kernel.
>
>
>
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