Pixelations initially loading in VMS Ver 11-322

rondi wrote on 10/22/2015, 1:20 PM

I have copied shows from my DrcTV DVR that 1280x720p .mp4. When I play them in Media Player HC x64 they play perfectly. When I put them on the timeline in VMS the preview screen is garbled with some many distorted portions I can't even make out what is there.

I have my properties set to HD 720-60p with Rendering Quality set to Best, Deinterlace set to none, and Adjust source media checked.

I have the Preview window set to Good (Full) and occupies the bottom right 1/4 of the screen.

Sometimes it loads fine either by double clicking the mp4 file, or clicking the saved .vf file. I wouldn't care too much if this happened very few times and I had to reload it. I should mention 1 more thing. It seems like after it has "warmed up" it works like it should. By warmed up I mean--if I load a file and play it part way, click New Empty Project, load a different file, play a portion of it--it's probably distorted too, and keep clearing and reloading--then everything works as it should.

My system should be ok. I'm using W7 Pro 64, i7-3770, 32gb memory. I do however have only the stock Intel HD Graphics 4000, with a SSD.

Am I missing some Codec or setting that causes this?

Ron

Comments

Steve Grisetti wrote on 10/23/2015, 7:39 AM

An upgraded graphics card would help to some degree.

But, meantime, have you set your Video Project Properties to match your video specs?

Also, do make sure you have the latest drivers for your Intel HD card and that you have the latest version of Quicktime from Apple.

Also, how much free space is on your SSD? Video editors can leave a pretty big footprint when they're running, and without ample room, you could see some buggy issues.

rondi wrote on 10/23/2015, 7:59 PM

Thanks for the reply Steve. I updated all my Intel drivers, and my PC is updated even to the extent the M$ promts to try W10 is back! now help from the updates.

I think this is deeper than hardware. I say this because--using MPEG StreamClip I took the .mp4 file I have been using and made .avi and .mov files. The size is ridiculous--original mp4=1.96gb, mov=7.27gb, avi=30.3gb. Everything is smooth, the image in the frames is displayed and no pixelations in the amount of time I played with it. So clearly, at least to me it has to do with the compression, not file size.

Once the data get pixelated--they stay that way even when I render them.

Having the mp4 on the timeline, when I take the cursor and pick points along the timeline, the preview starts getting pixelated, and it continues. When I go back to the start--that same preview screen is still there.

With the mp4--when I magnify or expand the timeline so I can see the individual frames are--there is no image there, (but if I put the cursor on the blank frame, the preview screen has an iamge) but with the mov & avi files there is the image of that frame--so taking out advertisements and other junk is easy to do. But it's just a guess with the mp4.

Am I missing the correct codec, or ??

There doesn't seem to be anything looking at MediaInfo.

Maybe tomorrow I'll download the trial of VMS 13--hopefully the trial is fully functional. The alternative is to create an mov file for all the mp4 files I have before editing.

Ron

Steve Grisetti wrote on 10/24/2015, 8:38 AM

But, meantime, have you set your Video Project Properties to match your video specs?

Please open one of those DVR files in G Spot or Media Info and note the resolution, frame rate and, above all, the audio and video codecs. DVR video could have some proprietary codec thing going on -- but we won't know until we know what the files are actually composed of. Remember, DVR files aren't designed to be edited. They're designed to look good and take up as little space as possible on the DVR's hard drive.

rondi wrote on 10/24/2015, 11:45 AM

Thanks again for the help Steve.
I forgot to mention--the Proj Properties are the same as the input files.

On my website http://rondi.netau.net/VMShelp/ I posted some screenshots of MediInfo of the original mp4, and one from after it was run thru MPEG Screen Clip (SC) to a .mp4. There is some difference, and if maybe those differences make the difference. After the SC I can edit the files just fine. I have not tried to make a DVD with them yet.

Notice the preview screen pixelation, If I were to save the file, those pixelations would be what I get. So the file in memory is getting screwed up and the preview window displays what is there. Maybe the timestamp is screwed up within the file.

I thought a pix would be worth a thousand words :),

Maybe running all my mp4 files thru SC and saving those files is a solution. The file size after SC is over 2 times as big--but at least I can edit it.
Ron