[vdr] Re: pvrinput - NTSC doesn't work - some progress

Jose Alberto Reguero jareguero at telefonica.net
Wed Jun 21 20:53:53 CEST 2006


El Miércoles, 21 de Junio de 2006 19:50, Simon Baxter escribió:
> Thankyou for everyone's suggestion - but I'm not trying to play NTSC
> content, I'm trying to watch/record it via the pvrinput plugin
>
> >>> I also guess you patched your VDR for NTSC, so maybe it just can't
> >>> playback your pvrinput stream if it's looking like you described, be it
> >>> live or recorded, as it seems to be PAL...
> >>
> >> Patched VDR for NTSC?  Nope - I must have missed something??
> >
> > Well, I remember there was a thread even this year in which Klaus was
> > admitting he should make this configurable after version 1.4 is polished
> > http://www.linuxtv.org/pipermail/vdr/2006-April/008726.html
> > The attached patch was sent by C.Y.M. by that time, and looking to it,
> > it seems it could make a difference, as it hard-codes the frame rate in
> > recording.h among other things. I just tried if it cleanly applies to
> > vdr-1.4.1 and it does, so give it a try.
>
> No, it's not VDR that seems to be causing the problem.  To clarify, this is
> my setup:
> -vdr 1.4.0
> -Shuttle SK43G PC with s-video output
> -Unichrome drivers for NTSC tv-out
> -USA NTSC Television
> -PVR-150 (NTSC only)
> -xine plugin
>
> VDR works fine.  I can use it to watch old (PAL) recordings made in the UK,
> watch .avi files, play mp3s, play DVDs etc
>
> > Yes, and don't forget that "Frames per GOP" setting, maybe that one is
> > important, too. In the end maybe it starts working with both of these
> > patches.
>
> I set this too, with no affect.
>
> I have made one change which seems to have changed the output slightly.  I
> applied the following changes to pvrinput:
> diff -Naur device.c device.c.SBB
> --- device.c    2006-06-21 09:46:01.000000000 -0700
> +++ device.c.SBB        2006-06-21 08:11:14.000000000 -0700
> @@ -504,7 +504,7 @@
>         readThread = new cPvrReadThread(video_fd, vbi_fd, tsBuffer,
> &mutex); SetVideoNorm(videoNormPAL);

The norm (PAL,NTSC,..) is setting in:

SetVideoNorm()

You can try changing:

SetVideoNorm(videoNormPAL);
to
SetVideoNorm(videoNormNTSC)

Jose Alberto

>         SetCodec();
> -       SetVideoSize(720, 576);
> +       SetVideoSize(720, 480);
>         SetInput(tunerInput);
>         SetPicture(PvrSetup.Brightness, PvrSetup.Contrast,
> PvrSetup.Saturation, PvrSetup.Hue);
>         SetVolume(PvrSetup.AudioVolume);
> @@ -653,7 +653,7 @@
>  {
>         SetVideoNorm(lastNorm);
>         SetCodec();
> -       SetVideoSize(720, 576);
> +       SetVideoSize(720, 480);
>         SetInput(lastInput);
>         SetPicture(PvrSetup.Brightness, PvrSetup.Contrast,
> PvrSetup.Saturation, PvrSetup.Hue);
>         SetVolume(PvrSetup.AudioVolume);
>
> Now the file that's being recorded is:
> MPEG-PS file format detected.
> VIDEO:  MPEG2  720x480  (aspect 2)  25.000 fps  6000.0 kbps (750.0 kbyte/s)
>
> The picture now looks like all the information is there, but the frame-rate
> is still wrong, and I can't see anywhere in the pvrinput sourcecode to
> change this.
>
> I tried taking the recorded 001.vdr, vdrsync.pl-ing it, and then ffmpeg
> recoding the mpegv2 file to 30fps, but this just made a mess too.
>
> As mentioned before, Freevo records and plays the channels fine - but I
> don't want to use Freevo, the OSD sucks.  I can also stream the video
> device directly to mplayer 'mplayer /dev/video', which plays fine too.
>
> any other ideas??
>
>



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