[SOLVED] 720p60 video stutters when playing

[white_snake]

A while back I had stuttering problems playing 1080p video with MPC-HC and pretty much any video with srt subtitles. MPC-BE played the same video without stuttering (or most of them... I can't remember exactly). I prefer MPC-HC myself but it might be worth a shot.
For reasons I don't understand, at the time MPC-HC with LAV filters and Nvidia CUVID worked the CPU a lot harder than MPC-HC with ffdshow and DXVA. Either way the video still stuttered though.

In my case the "fix" turned out to be either disabling overclocking (this PC has an old E6750 dual core which is slightly overclocked), or manually adjusting the PCI Express speed/frequency (however it's labelled, I can't remember) in the BIOS a little. I'll probably die without ever understanding the "why", but regardless of the decoding method (CPU or GPU) the stuttering problem went away and CPU usage with Nvidia CUVID decoding dropped back down to a few percent as it was for ffdshow/DXVA decoding.

My little story above probably won't help you though.... computers seem so often to do impossible things. And considering I have a second PC with the same MB, the same 8600GT video card, the same image of Windows and installed programs, and yet it never suffered from the same problem, that seems to make it all a little more impossible. The main difference between my two PCs is the second one has a quad core CPU, but the dual core PC stuttered playing video while CPU usage was still well under 100%.

If you're using the latest version of MPC-HC, try a pre LAV Filters version to see if that makes a difference.

Unfortunately I can only change few things inside my BIOS. I tried a pre-LAV version (1.5.1.2903), but got bad results.

re the above, I first ran the clips under vlc with no issue.

Today, I tried the second clip in my not-so-latest version of MPCHC and that played fine as well. I do recall installing the haali splitter some time ago.

One thing I did notice, which really should not affect playback but you never know, is that your capture is reported to be 1280*720 whereas the encoded version is reported to be 1488*720 !!!

That weird resolution is due to the fact that I widened the player in order to show all the stats given by Ctrl+J. Besides, that sample (that I recorded with Fraps) was just supposed to show you the kind of stuttering I'm experiencing.

Well you appear to have solved your problem or atleast partially solved it to give a 'satisfied' result.

One thing tho. A name is just that. A name. You should not need a codec pack to give you that. And codec packs are known to screw systems up. The recc on here is only to install, separately and not part of a pack, those codecs, filters and players that you need and not all the additional junk in a pack.

Thinking about it, I recall K-Lite installs a stripped down/modified version of MPC-HC. Maybe that's changed now MPC-HC LAV filters internally (at one stange I'm pretty sure most of MPC-HC's internal filters were removed), but just in case..... if you're using the K-Lite version of MPC-HC it might be worth downloading the non-K-Lite version to see if things improve. If you do it might also pay to go into it's options and reset eveything in case it picks up K-Lite specific settings from the registry etc.

After trying the ffdshow filters over the LAV ones, I also wanted to try the Haali Media Splitter over the LAV Splitter, but couldn't get MPC-HC to use Haali. I first preferred Haali inside the Codec Tweak Tool, then set it to "Prefer" inside the "External filters" section of MPC-HC and then tried to tinker with the merit system, but to no avail.

After that I decided to get rid of the K-Lite Codec Pack and installed the standalone version of MPC-HC. Since I couldn't see any improvement, I then installed the Haali and ffdshow packages, but again that didn't make any difference so I guess the conflict is not among codecs and filters. Right now I'm still trying to get MPC-HC to use the Haali Media Splitter.

OT: is it just me or the forum doesn't let you multi-quote?

[white_snake]

Sorry for necroposting but after years I happily found a simple and working solution that is enabling D3D Fullscreen in MPC-HC. Options → Output → Check "D3D Fullscreen". You will lose the GUI controls when you go full screen, but you'll be able to play anything silky smooth at least to the human eye. Have a good day.