NextPVR Forums

When I try to play an mp4 file from NPVR (2.5.9 fully patched). Windows 8 Pro 64bit. I have installed Windows Movie Maker and saf unlocked. I get the System Error:

"The program can't start because MP4FileLibU.dll is missing from your computer. Try reinstalling the program to fix this problem."

The mp4 file will play fine in Windows Media Player and MPC. I tried re-installing the mp4splitter from MPC standalone filters. i created the mp4 using MCEBuddy converting a NPVR .ts recording. I don't see anything of interest in the below log:

2013-02-23 16:04:06.419 [DEBUG][1] TV Listings: Got event PLAYING_VIDEO E:\Users\Public\Videos\A Charlie Brown Thanksgiving\A Charlie Brown Thanksgiving-2009-11-26 0402.mp4
2013-02-23 16:04:06.430 [DEBUG][1] CheckCache() indicates:C:\Users\Public\NPVR\skin\Default\Videos\default.jpg is not cached.
2013-02-23 16:04:06.430 [DEBUG][1] CheckCache() indicates:C:\Users\Public\NPVR\skin\Default\Videos\default.jpg is not cached.
2013-02-23 16:04:06.430 [DEBUG][1] CheckCache() indicates:C:\Users\Public\NPVR\skin\Default\Videos\default.jpg is not cached.
2013-02-23 16:04:06.434 [DEBUG][1] OnKeyDown() done. Took 1053.31945800781 ms
2013-02-23 16:04:06.438 [DEBUG][1] GetEventCode() returned: 0x000d
2013-02-23 16:04:06.439 [DEBUG][1] GetEventCode() returned: 0x0001
2013-02-23 16:04:06.439 [DEBUG][1] About to store playback position information
2013-02-23 16:04:06.441 [DEBUG][1] GetDuration returning 0
2013-02-23 16:04:06.445 [DEBUG][1] PlaybackPositionHelper.StorePlaybackPosition(A Charlie Brown Thanksgiving-2009-11-26 0402.mp4, 0, 0)
2013-02-23 16:04:06.446 [DEBUG][1] PlaybackPositionHelper.DeletePlaybackPosition(E:\Users\Public\Videos\A Charlie Brown Thanksgiving\A Charlie Brown Thanksgiving-2009-11-26 0402.mp4)
2013-02-23 16:04:06.451 [DEBUG][7] TV Listings: RecordingSchedule: database file change detected, starting schedule update timer.
2013-02-23 16:04:06.457 [DEBUG][7] TV Listings: RecordingSchedule: database file change detected, increasing schedule update timer interval.
2013-02-23 16:04:06.462 [DEBUG][1] Stopping graph@1
2013-02-23 16:04:06.462 [DEBUG][1] Stopping graph@2
2013-02-23 16:04:06.462 [DEBUG][1] Stopping graph@3
2013-02-23 16:04:06.464 [DEBUG][1] Removing filter SAMSUNG (Intel® Display Audio)
2013-02-23 16:04:06.464 [DEBUG][1] Removing filter EVR Renderer
2013-02-23 16:04:06.479 [DEBUG][1] TV Listings: Got event PLAYBACK_STOPPED E:\Users\Public\Videos\A Charlie Brown Thanksgiving\A Charlie Brown Thanksgiving-2009-11-26 0402.mp4
2013-02-23 16:04:06.479 [DEBUG][1] TV Recordings: Panel: not in main menu, cancelling activation.
2013-02-23 16:04:06.479 [DEBUG][1] UiStatic.Dispose()
2013-02-23 16:04:06.820 [DEBUG][1] Frame Render Rate=70.3244705200195
2013-02-23 16:04:08.392 [DEBUG][1] storing Position (1):0,0
2013-02-23 16:04:08.392 [DEBUG][1] storing Size (1):789,473
2013-02-23 16:04:08.392 [DEBUG][1] TV Listings: Got event EXITING
2013-02-23 16:04:08.392 [INFO][1] TV Listings: RecordingSchedule: deactivated.
2013-02-23 16:04:08.396 [INFO][1] Exiting...
2013-02-23 16:04:08.396 [INFO][1] Done.

MP4FileLibU.dll isn't a file NextPVR depends on.

Maybe the default directshow decoders your machine depends on for mp4 files relies on this file but it's not present or something like that.

I realize that, what baffles me it that it plays fine in windows media player

For completeness I thought I would share. I found that installing the:

Haali Media Splitter
http://haali.su/mkv/

Solved this issue.