Aspect Ratio Lost of Live TV Pause

[crlorentzen]

Hello,

I have noticed an issue where, when I pause live TV (4:3) it immediately returns and shows a full frame, rather than the 4:3 source.

The recorded file has the correct source information as it plays fine in any other DirectShow program. Tried Media Player Classic, and Windows Media Player 11. All of these programs use the System Default MPEG-2 decoder MPC - MPEG-2 Video Decoder (Gabest).

GBPVR 1.2.13 w/ fixed GBPVRTSMon.ax and
http://forums.gbpvr.com/showpost.php?p=2...stcount=90

PVRX2 w/ DVD Aspect ratio fix
http://forums.gbpvr.com/showpost.php?p=2...ostcount=8

I did however notice the same issue without these fixes, and in 1.2.9

Logs attached, and I can provide the mpg file that GBPVR created.

pvrx2-native.log

Code:

Began Live TV
2008-08-06 18:29:04.363    INFO    Key pressed: Return
2008-08-06 18:29:04.582    VERBOSE    ConexantRecorder::StartRecording(1, 1, 71, 0)

Paused Live TV
2008-08-06 18:29:36.785    INFO    [1]    LiveTVVideoPlayer.initialize()
...
2008-08-06 18:29:38.144    INFO    DirectShowPlayerBase::playVideoFile(C:\Temp\Live\Dumb and Dumberer When Harry Met Lloyd_1_20080806_18002000.mpg)
...
2008-08-06 18:29:40.504    VERBOSE    unknown source aspect ratio...showing full frame

I suppose that it may need a retry at some point to see about getting the correct ratio from the file. Or maybe, when the DirectShowPlayerBase:etPlaybackRate(1.00000) is run we should probe for an updated ratio. Just some ideas, I know that it may not be as easy as it is to say.

Changing channels, or returning to live mode restores the proper ratio.

One other thing that I find interesting. @sub, the logging on pvrx2-native does not log when the video is paused...I kindof expected to see a call to setPlaybackRate with 0 or similar as the argument...just me being picky

Please let me know if you need more data or info.

[sub]

I've never seen it lose the aspect ration when you pause. Its most likely something related to the video decoder you're using. Some video decoders insist on trying to manage the aspect ration themselves. Try using a different one to see what happens.

[sub]

Ah, also make sure you explicitly specify the decoder rather than leaving it set to 'system default' or it wont attempt to manage the aspect ratio.

I'm pretty sure this is your problem.

[crlorentzen]

Hmm...I think your statement that it doesn't manage the aspect ratio when it is not set as the decoder was the best data I could get. Was a little confused, as I use the System Default in DVD settings, however, I suppose that you manage that ratio based upon the IFO, not the decoder data.

What I did was add MPC - MPEG-2 Video Decoder (Gabest) to the list via the config.xml file

Code:

<SupportedDecoders>DScaler Mpeg2 Video Decoder,Microsoft MPEG-2 Video Decoder,CyberLink Video/SP Decoder (PDVD8),CyberLink DTV Video Decoder,ATI MPEG Video Decoder,ArcSoft Video Decoder,InterVideo NonCSS Video Decoder for Hauppauge,InterVideo Video Decoder,CyberLink Video/SP Decoder (ATI),CyberLink Video/SP Decoder (PDVD7),NVIDIA Video Decoder,CyberLink Video/SP Decoder,Elecard MPEG2 Video Decoder,Elecard MPEG-2 Video Decoder,Moonlight-Elecard MPEG2 Video Decoder,MainConcept MPEG Video Decoder,MainConcept MPEG-2 Decoder,MainConcept (Hauppauge) MPEG Video Decoder,Sonic Cinemaster® DS Video Decoder,Zulu HDTV Video Decoder(BDA),Nero Video Decoder,GPL MPEG-1/2 Decoder,MPV Decoder Filter,ffdshow MPEG-4 Video Decoder,ffdshow Video Decoder,HCW MPEG-2 Video Decoder,MPEG Video Decoder,MPC - MPEG-2 Video Decoder (Gabest)</SupportedDecoders>

This allowed me to select it in the Config application, and now when I pause I do not see the problem.

The reason I resolved it this was was so that I could have the 16-235 -> 0-255 expansion that I configured in this decoder.

Anyways thanks for your assistance, as always, I think we can mark this as resolved.

Thanks for your help as always sub.

[sub]

Hmm...I think your statement that it doesn't manage the aspect ratio when it is not set as the decoder was the best data I could get.

Yeah, I was pretty sure that would be your problem

Was a little confused, as I use the System Default in DVD settings, however, I suppose that you manage that ratio based upon the IFO, not the decoder data.

Aspect ratio control with DVDs and Live TV are done very different ways.