TV image is clipped

[oskotheim]

Hello. I am trying to use GB-PVR to record shows from a Sagem Digital Cable TV Tuner. I have an Acer L250 Livingcenter PC with a Hauppauge WinTV 88x chipset TV card running Vista MCE. The tuner is connected to the S-Video input on the card.

I use Vista MCE to record from analog TV channels (via the coaxial input) but since I could not find a way to select other inputs from Vista MCE, I installed GB-PVR.

I added the "External S-Video" capture source, and now I am able to view the live image from my TV tuner box via GB-PVR. However, the image seems to be clipped, for example I cannot see the subtitles in the lower end of the TV image.

I have played around with aspect ratio settings in the config.xml file, and I am able to squeeze the image. However, when I squeeze the image it is still clipped, and the lower part of the screen becomes black (instead of showing the lower part of the image containing subtitles etc.)

When I watch video on the S-Video input via the Hauppauge WinTV 2000 application, the image looks fine (no clipping occurs).

Is there anything I can do to fix this?

Thanks in advance.

Regards,
-Øystein

[Reddwarf]

I had a similar issue with the Sagem STB, in the box there is a setting for scart-output format, It's set to HD by default and I always got the wrong aspect ratio until I set output to be SD.

[oskotheim]

Hello Reddwarf. Thank you for your suggestion. I have already experimented with the different settings on my STB, e.g. enable/disable HD output and switch between 16:9 and 4:3 format. However, the clipping of the image still appears even if I choose to disable the HD output.

-Øystein

[stustunz]

what do you have the recording size set to and what country in your capture settings in config

[Reddwarf]

what do you have the recording size set to and what country in your capture settings in config

That would be my next suggestion . If the wrong country is set it may expect NTSC with a different framerate, and clipping would certinly appear it size is not set corresponding.

[oskotheim]

The country is set to Norway. Where do I set the "recording size"?
Under Quality Profile Settings->Edit Capture Settings, the video resolution is set to "NTSC 720x480 / PAL 720x576".

I experimented also with the overscan settings in config.xml file, but I was still not able to get rid of the clipping.

However, I have found a (partial) solution. Under "Misc->Live Preview mode", the "Use Live Preview mode if possible" box was checked, and the deinterlacing filter was set to "Encoder pass-through". If I change the deinterlacing filter to "None", or if I choose "ffdshow raw audio filter", the clipping disappears(!) and the image looks normal.

However, the sound has disappeared. When I choose "Encoder pass-through" I get a clipped image with sound. Any other setting (including if I uncheck the "Use Live Preview mode") gives me an image without the clipping problem, but without any sound(!)

How, how can I get my sound back?

Best regards,
-Øystein

[sub]

However, I have found a (partial) solution. Under "Misc->Live Preview mode", the "Use Live Preview mode if possible" box was checked, and the deinterlacing filter was set to "Encoder pass-through". If I change the deinterlacing filter to "None", or if I choose "ffdshow raw audio filter", the clipping disappears(!) and the image looks normal.

It sounds like its being caused by the MPEG2 decoder you're using (which is only used when the deinterlacing is set to 'encoder pass-through').