[solved] An anamorphic resizing mode implemented in MediaPortal/LAVFilters? (25 Viewers)

[4lbertoR]

Hello.

A first thanks for all the people who work at the realization of MediaPortal

I am planning to build an HTPC whose HDMI output will be connected to an HDMI to SCART converter towards a 16:9 CRT TV.
My problem is that i am not sure at 100% that this converter will allow me to send 16:9 resolution like 1024x576 or 1280x720 (i am not sure even if my graphic chip will send a 1024x576). If it won't do that, i should find a way to resize, during play, every video in anamorphic so that i can, then, stretch the video through the 16:9 TV's setting obtaining a full 16:9 PAL/NTSC.
Well, i had found a way with FFDShow, which offers an AVISynth interface for manipulating the output, but this seems no longer developed and currently doesn't support the H265; also, LAVFilters doesn't seems to offer this anamorphic conversion and doesn't offer an AVISynth interface.

At this point, why not to implement an anamorphic zoom mode or an AVISynth interface in MediaPortal? Or is the case to ask LAVFilters developers to implement that? Or, obviously, is there some other solution?

 

[mm1352000]

Is there no zoom mode that would work for you?
http://wiki.team-mediaportal.com/1_MEDIAPORTAL_1/14_Using_MediaPortal/1_Videos/3_Video_Zoom_Modes

You can set the default zoom mode:
http://wiki.team-mediaportal.com/1_...diaPortal_Configuration/2_Videos/4_Video_Zoom

 

[4lbertoR]

I could use the Stretch zoom mode, but it doesn't work well in all cases. I explain.
Most of 16:9 homevideo movies have black borders on the top and on the bottom (i mean this, for example); and often, the version of those movies found online have these black borders removed (infact their resolution can be about 1920x800 instead of 1920x1080, in the case of FullHD, like this). In this case, if i use the Stretch zoom mode, and then the horizontal stretching of the TV, i obtain a video not well proportioned vertically.
What i would need is adding the right black borders to the video while playing it and before doing the stretch (i have done this with the AVISynth interface of FFDShow), or simply applying the aspect ratio of anamorphic videos (if i have understood well).

I won't need this if the video converter will output a native 16:9 resolution to the TV; however, i have thought to propose this new function even for the other people who have a 16:9 CRT TV but a PC which can output only 4:3 resolutions.

 

[mm1352000]

Most of 16:9 homevideo movies have black borders on the top and on the bottom (i mean this, for example); and often, the version of those movies found online have these black borders removed (infact their resolution can be about 1920x800 instead of 1920x1080, in the case of FullHD, like this).

It sounds like you're describing a 21:9 movie with and without letterboxing.

I won't need this if the video converter will output a native 16:9 resolution to the TV; however, i have thought to propose this new function even for the other people who have a 16:9 CRT TV but a PC which can output only 4:3 resolutions.

I would have thought this would be rare.

Another possibility: have you considered using ViewModeSwitcher ("built-in plugin" supplied with MediaPortal)?

 

[4lbertoR]

It sounds like you're describing a 21:9 movie with and without letterboxing.

Yes. I wasn't sure if that movies was 21:9 or some other format

I would have thought this would be rare.

Do you mean it isn't worth the effort?

Another possibility: have you considered using ViewModeSwitcher ("built-in plugin" supplied with MediaPortal)?

Yes, i have considered it, but it allows only to trigger a specific zoom mode basing on the kind of video, it doesn't offer new zoom modes, if i have understood well.

 

[mm1352000]

Do you mean it isn't worth the effort?

No, I simply mean that I would be surprised if there are many PCs which are limited to outputting 4:3 resolutions.

Yes, i have considered it, but it allows only to trigger a specific zoom mode basing on the kind of video, it doesn't offer new zoom modes, if i have understood well.

True. At least it supplies the possibility for different zoom mode selection based on video resolution. Now you're only missing an appropriate zoom mode.

One final possibility that may (or may not ) help is the UI and/or screen calibration:
http://wiki.team-mediaportal.com/1_...ion/Settings/2_GUI_Settings/3_Screen_Settings

If that does not help either, I think best to wait and confirm that the converter/adaptor does not support 16:9 before taking further steps.

 

[4lbertoR]

No, I simply mean that I would be surprised if there are many PCs which are limited to outputting 4:3 resolutions.

Well, they do, but maybe not all do it in anamorphic.

One final possibility that may (or may not ) help is the UI and/or screen calibration:
http://wiki.team-mediaportal.com/1_...ion/Settings/2_GUI_Settings/3_Screen_Settings

If that does not help either, I think best to wait and confirm that the converter/adaptor does not support 16:9 before taking further steps.

Wow, i hadn't still used that option, and there is a proportion calibration; i am near sure that it is just what i need. I'll inform you when i will test it on my 16:9 CRT. Thank you for your time

 

[emphatic]

Shouldn't just calibrating the screen in Settings/GUI/Screen give you the correct A/R?

Emph

 

[mm1352000]

Shouldn't just calibrating the screen in Settings/GUI/Screen give you the correct A/R?

That was the last suggestion that I posted.

 

[emphatic]

That was the last suggestion that I posted.

*facepalm* I missed that when skimming the replies.

I remember back when I had a 16:9 CRT, that video playback would look fine but skins were messy at best. Just make sure to follow the on screen instructions. If you get weird results with the video, just focus on changing the part with THE SQUARE until a 16:9 video fills up your screen.

Emph