FF, REW crash on playback

[jw100]

When I press these keys on the remote a little too fast, PVRX2 hangs, reporting "AppHangB1", Has anyone else seen this or is it just my machine?

Would there be any way to prevent rapid key presses from being passed to the system?

[sub]

Reproduce the problem, then zip and attach the pvrx2.exe.log and pvrx2.exe-native.log and I'll take a look.

[jw100]

Logs attached. The second one didn't have the AppHang but it produced an AppCrash on normal exit.

[sub]

Unfortunately I cant see any sign of problems in those logs. It might be worth checking if using other decoders help.

[rookie]

When I press these keys on the remote a little too fast, PVRX2 hangs, reporting "AppHangB1", Has anyone else seen this or is it just my machine?

I've seen the lockup this using WinXP SP2 and nVIDIA PureVideo Decoder. If I held down the FF button on a hour show, the program would hang.

I could kill it, but do little else. Since switching to fddshow, I've not had a lockup.

http://forums.nextpvr.com/showthread.php?t=45851

[rookie]

I've seen the lockup this using WinXP SP2 and nVIDIA PureVideo Decoder. If I held down the FF button on a hour show, the program would hang.

I could kill it, but do little else. Since switching to fddshow, I've not had a lockup.

http://forums.nextpvr.com/showthread.php?t=45851

I've done some testing tonight. It is less likely to lockup with fddshow, but I can still lock it up with the "FF" button. I can't lock it up with the "SKIP (>|)" button. The behavior does seem to improve or get worse based on video codec. I didn't try swapping the audio codec.

[jw100]

It looks like it could well be a specific decoder, but which one? I have left the config settings at default. The log shows this:

Code:

getSetting(ListGraphFilters)
2010-03-29 22:31:25.340    VERBOSE    Graph contains the following filters:
2010-03-29 22:31:25.340    VERBOSE     - Default DirectSound Device 0008
2010-03-29 22:31:25.340    VERBOSE     - GB-PVR DVB Subtitles
2010-03-29 22:31:25.340    VERBOSE     - Default DirectSound Device 0005
2010-03-29 22:31:25.340    VERBOSE     - Default DirectSound Device
2010-03-29 22:31:25.340    VERBOSE     - Video Renderer
2010-03-29 22:31:25.340    VERBOSE     - Microsoft DTV-DVD Video Decoder
2010-03-29 22:31:25.340    VERBOSE     - ffdshow Audio Decoder 0006
2010-03-29 22:31:25.340    VERBOSE     - ffdshow Audio Decoder 0003
2010-03-29 22:31:25.340    VERBOSE     - ffdshow Audio Decoder
2010-03-29 22:31:25.340    VERBOSE     - MPEG-2 Demultiplexer
2010-03-29 22:31:25.340    VERBOSE     - SOURCE

Does that mean it's the MS one? I've tried the others now - about 6 listed in Config - and the best performer was a Cyberlink decoder that came with my DVB-T stick (KWorld). It was marginally better than another Cyberlink one I think came with a pre-installed app. It still hung, but I had to press for a lot longer before it froze.

Keyboard pressing (Ctrl-right) doesn't seem to have the same effect. The keyboard handler has a buffer, and may control the rate it passes commands to the app. Would there be any way to limit command-rate from the remote?

When I switched the renderer from VMR to EVR, I couldn't reproduce the effect (I was still on the Cyberlink decoder). However, the picture was not refreshed until I released the FF button, and no position bar(?) was shown at the top of the screen. With VMR, the bar showed the position while I was forwarding (much better), as well as frames from the current position. So, VMR gives better viewing, but risks hanging, at the expense of a bit more processing power (around 25% for CPU and GPU against 17% for EVR).

I hope other users may find this useful. If anyone else has a preferred Win7 set-up, I'd be happy to hear from them.

[imilne]

Yep, that looks to me like the MS decoder is being used for video. ffshow is only handling the audio.

I don't know whether it matters or not (anyone?) but you can remove the multiple instances of ffdshow by finding the options in its config where you can select "only use one instance" and then pick "check all filters in the graph" from the list (I'm paraphrasing; not on a machine with it just now).

[jw100]

You're right, and it seems to be set up that way by default (or at least not by me). ffdshow was downloaded in the K-Lite pack.

Just finding out which ones were installed took me a while. Win7 hides them away better than previous versions and the first relevant Google response was the "DirectShow Filter Manager" utility. This may be useful for re-registering filters - advice I've seen offered in a number of posts and which I attempted myself, only to find the "Re-register.bat" utility failed (inadequate permissions, I think).