[LiveTV + Vista] UnauthorizedAccessException

[hemme]

Briefly:

OS: Windows Vista Biz Edition
DVB-T Device: Hauppauge HVR-900
"extender": MVP wired

When I try to watch LiveTV:
1- tv screen stays still until the time buffer delay passes on...
2- tv screen goes black
3- gbpvr flashes to GUI mode for a very short time
4- gbpvr restarts

I tryed to extend LiveTV pre-delay time up to 15s but the behaviour is always the same.

The log file reports a .NET error due (imho) to sharing permission violation or something similar... Here follows the log stub... The error is given in Italian but the translation should be something like "Access to path <temp_file_path> is denied.'

Thanks in advance!
::::::::::::::::::::::::::::::::::::::::::::::::::::
2007-05-19 09.47.25.560 VERBOSE [8] MVP request processed
2007-05-19 09.47.25.560 VERBOSE [8] MVP data read: 1 (8)
2007-05-19 09.47.25.560 VERBOSE [8] Responding to ping
2007-05-19 09.47.25.560 VERBOSE [8] getValue cached value: /settings/DisableHauppaugeMVPScreenSaver : true
2007-05-19 09.47.25.560 VERBOSE [8] MVP request processed
2007-05-19 09.47.26.091 VERBOSE [9] Opening media file: M:\Recordings\MVP000DFE0015B61.mpg
[COLOR="Navy"]2007-05-19 09.47.26.110 ERROR [9] Media stream thread caught exception: System.UnauthorizedAccessException: Accesso al percorso 'M:\Recordings\MVP000DFE0015B61.mpg' negato.
in System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
in System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
in System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
in GBPVR.xbb1566157f5f8b1f.xf9d81bb81f7c2ff0()[/COLOR]2007-05-19 09.47.27.112 VERBOSE [9] StopLiveTV()
2007-05-19 09.47.27.572 VERBOSE [9] MVP Streaming Thread shutting down...
2007-05-19 09.47.27.573 VERBOSE [9] MVP Streaming Thread shutdown finished
2007-05-19 09.47.27.960 VERBOSE [8] MVP data read: 1 (7)
2007-05-19 09.47.27.960 VERBOSE [8] Got ACK
2007-05-19 09.47.28.635 VERBOSE [8] MVP request processed

[sub]

Is M: a local or network drive?

[hemme]

M: is a local drive.
GBPVR recording service is running as Local System Account.

[hemme]

It turns out that gbpvr is always trying to do IO operation on that "MVP000DFE0015B61.mpg" file.
It eve turns out that I CANNOT delete manually that file even if I provide Admin permission via UAC dialogs...
Maybe the file seems to be locked by some process.

Does GBPVR try always to write to the same temp file?

[hemme]

I changed the Recordings dir. Now it's "M:\GBPVR_Recordings"
One good news, and one bad one...

The good news is that there's no more UnauthorizedAccessException.
The bad news is that there's a FileNotFoundException

:'(
:confused:

2007-05-19 10.27.03.913 VERBOSE [8] MVP request processed
2007-05-19 10.27.06.954 VERBOSE [9] Opening media file: M:\GBPVR_Recordings\MVP000DFE0015B61.mpg
[COLOR="Navy"]2007-05-19 10.27.06.977 ERROR [9] Media stream thread caught exception: System.IO.FileNotFoundException: Impossibile trovare il file 'M:\GBPVR_Recordings\MVP000DFE0015B61.mpg'.
Nome file: 'M:\GBPVR_Recordings\MVP000DFE0015B61.mpg'
in System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
in System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)[/COLOR] in System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
in GBPVR.xbb1566157f5f8b1f.xf9d81bb81f7c2ff0()
2007-05-19 10.27.07.979 VERBOSE [9] StopLiveTV()

[sub]

Does GBPVR try always to write to the same temp file?

Yes, per MVP, but it also tries to delete this file before creating it.

Try restarting the recording service, then manually delete the file.

[sub]

I changed the Recordings dir. Now it's "M:\GBPVR_Recordings"
One good news, and one bad one...

The good news is that there's no more UnauthorizedAccessException.
The bad news is that there's a FileNotFoundException

:'(
:confused:

2007-05-19 10.27.03.913 VERBOSE [8] MVP request processed
2007-05-19 10.27.06.954 VERBOSE [9] Opening media file: M:\GBPVR_Recordings\MVP000DFE0015B61.mpg
2007-05-19 10.27.06.977 ERROR [9] Media stream thread caught exception: System.IO.FileNotFoundException: Impossibile trovare il file 'M:\GBPVR_Recordings\MVP000DFE0015B61.mpg'.
Nome file: 'M:\GBPVR_Recordings\MVP000DFE0015B61.mpg'
in System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
in System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) in System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
in GBPVR.xbb1566157f5f8b1f.xf9d81bb81f7c2ff0()
2007-05-19 10.27.07.979 VERBOSE [9] StopLiveTV()

You're probably still having permission problems. GB-PVR is probably unable to create the file in the first place.

[hemme]

(FYI: Since I changed the recordings dir the "cannot-delete-that-file" issue is now marginal but - pour parler - with the service stopped and the path changed I still cannot delete that file...)

[hemme]

I made another test: watching the StarCraft 2 trailer movie through the YouTube plugin ^__^

This time gbpvr could create a 40MB file into YouTube subdirectory and the flv file on the recordings folder "M:\GBPVR_Recordings"!

(...puzzling to me...)

[sub]

Youtube stuff runs as the current user (ie, gbpvr.exe process), while recordings happen as a different user (ie, GBPVRRecordingService.exe runs as localsystem).