Problem with HD channels (live and recordings)

[pvkleeff]

I have a problem with some HD Channels when watching tv or watching the recordings.
The Channels I record from are either 1280x720 (720p) or 1920x1080 (1080i) resolution.

When I use the ffdshow or MPC codecs the channels stay dark. When I use the PowerDVD codec they give me an image but the codec has trouble keeping up with 50 fps, you see the framerate drop to 35 (or somewhere in between) which gives me stutter when watching.

If I watch a recording (ts files) made from one of these channels the same thing occurs. However, when I watch the same recordings in MPC-HC, Windows Media Player, VLC or Zoom Player they play ok.

While watching the graph MP makes while playing these files I noticed that the TSFileReader incorrectly identifies the format of the file as 720x576 (see attached jpg file for an example), whereas other players correctly see the file as 1280x720. Somehow the PowerDVD codec corrects this problem to display the image (in the graph you see 720x576 in the video-in pin and 1280x720 in the video-out pin of the PowerDVD graph properties), but gives me the fps problems.

I even upgraded to the latest SVN (13-06-2008) to see if the problem still occurs but there it's even worse as MP crashes when it tries to play the file.

I've attached the logs (from 1.0RC1 and the 13-06-2008 SVN)

[Spooky]

I may have the same issue. Good finding about the TSFileReader, I'll check that on my systems too.

[Spooky]

I can confirm, that the Media Portal File Reader incorrectly displays the video as 720x576. I appended screenshots of the video properties of the reader and the video in and output of the PowerDVD codec. (also latest SVN)

[jallahman]

Good to hear that someone else have the same problem.. I have no idea how much time I have been debugging this problem. I have lost count over how many times I have reinstalled windows, powerdvd, mediaportal and display drivers to try and fix this problem.

Hope this will be fixed soon

[Spooky]

Maybe this is also related to some people having troubles with viewing HD channels in MP, where the video is zoomed in to the upper left corner, possibly viewing the 720x576 area of the HD video.

[jallahman]

Yes.. this sounds like part of the same bug..

But why do some people not have this bug then? This should affect everybody viewing HD-channels.

[Spooky]

Well it looks like it depends on how well the codec handles this misinformation (if this is the cause of problems at all).

[jallahman]

Lets hope that the devs read this thread, and agrees that this is an important bug that has to be fixed asap

[red5goahead]

I've some a similar problem with Rai Uno 16/9 via Dtt channel viewing Europen championship (Italy still alive ! ).
A little bit of stuttering with a filtegraph dxva oriented. cyberlink video/sp (pdvd8) with dxva check obviolsly.
evr under Vista Business. Gpu at 10% and cpu less than 10%. some stuttering not to much but present. same ts file on timeshft folder played with mpc-hc same filtergraph don't have the same problem.
With Rai HD Dtt sperimental channel I seen the same your issue the 720x576 info on ts reader pin out. some stuttering also in h264 but less than sd channel

[allanp81]

I think I have this problem as well when watching ITV HD. It works at normal framerate for a few seconds but then slows down seems like it's running at about 10-15fps and very jerky.