A

Anonymous

Question

Video playback looks pixelated and blocky

Forum|Forum|15 years ago
August 4, 2010
3 replies
23914 views

Hi.

I have just installed PE 8 on my PC and I have an nVidia GeForce 7950 GT graphics card installed (with the latest driver).

When I playback fully-rendered AVI video in the desktop monitor from the timeline in 'Enable GPU playback' mode the video appears rather pixelated and blocky (undesirable), although the playback motion is smooth. If I playback the same video from the timeline after I disable GPU playback the video now appears crisp, however the playback motion is choppy.

Obviously I'd rather use 'Enable GPU playback' mode to make full use of my graphics card but the quality of the video is noticeably worse than not using it. Strangely enough, if I scrub through the timeline, the video looks crisp, but when I hit the space bar to playback video automatically, the video appears pixelated again. This occurs on fully-rendered video and even without any transitions or effects being applied.

This does not happen when using Adobe Premiere Pro or Microsoft Movie Maker (which I also have installed). Playback in Adobe Premiere Pro looks far more crisper and smooth playback too.

I have also looked through the recommended video quality guideline under the Premiere Elements 8 support and help.

How can I achieve crisp video playback in PE 8?

Nigel

This topic has been closed for replies.

M

Mariposa416

Participant

The only reason I replied to this Forum was because the person was having the same issue as me, just with a different product. I only have Adobe Photoshop CS5. I gave the settings I use. I want to know how I should change my settings. I may be creating the video all wrong or using the wrong product. I had a photoshop file with layers. I wanted the rain to fall out of the sky, so i made a video with the raindropd falling at a tween of 20 and I had like 380 frames after that. I could figur out how to get another layer to move at a different pace, so I exported the video (many times until i could get it as clear as possible). Then i added the video back in, and added in another layer (the one that was floating in the sky). No matter which setting I used to export the video, it wasn't as crisp as I was looking for. I exported the video and iserted it back in for the movement across the bottom. That came out really clear (but it came from http://videoblocks.com). Do you or anyone else know which is the best settings for me to use in Photoshop CS5? Or is there another program i could use to makke clear videos?

John T Smith

Community Expert

>only have Adobe Photoshop CS5

You should ask in the Photoshop forum http://forums.adobe.com/community/photoshop

M

Mariposa416

Participant

Thanks, but right after i posted the first response, I also posted one in the photoshop forum. I figure I'll get help somewhere. lol I need the help asap. This video needs to be done before sunday (when it's due).

M

Mariposa416

Participant

I have having just about the same exact problem. I created a video using Adobe Photoshop CS5. In photoshop, the video is crisp and clear. After I export the video into an "MP4 H.26 Best quality 30 or 48 fps 1920x1080 HD" video, part of the video looks clear, but as soon as the movement occurs, the picture becomes pixelated. I've tried everything that ia can think of. I have a still picture in the back ground. There is rain coming down from the top, an object moves across the bottom, and another object "floats" in the air (little up and down movement). Before the rain comes down, eveerything is clear. Even after the rain comes down, the movement across the bottom is clear (a video loop from videoblocks.com). But after the rain starts to come down, the stil background image begins to look pixelated, and the "floating" object becomes blurry as well. At first I thought it had something to do with the way I had the rain come down...but in photoshop, the playback is very clear. Does anybody have any idea how i can save this video without it looking this way? I need an answer asap, PLEASE.

Thank you!!!!

Mariposa416

A

A_T__Romano

Inspiring

Mariposa416

What version of Premiere Elements are you using and on what computer operating system it is running? But, from what you wrote, this seems to be an Adobe Photoshop CS5 issue related to the generation of the H.264.mp4 video from that specific product.

Even within a given product line, problems with the same symptoms can (often do) have different causes. And, when you introduce products from two different lines, the variables increase.

But, I would offer that you look at

a. source media that went into the Photoshop CS5 project

b. what project presets were used, if applicable

c. where there opportunities for video field options

d. what were the full details of the Photoshop CS5 export settings.

You may want to post your question in the Photoshop CS5 Forum unless someone here works with video in that program as well as Premiere Elements, the focus of this forum.

Just my take on the matter.

ATR

S

Steve Grisetti

Legend

What type of camcorder is your AVI coming from and how did you get it into your computer? What Premiere Elements project settings are you using?

When you add these files to your timeline, do you see a red horizontal line above them? If so, you have a mismatch of source file and project setting.

How are you playing back your video? You're not looking at it full-screen on your computer, are you? Computer screens have many times the resolution of video and any video played at full-screen on a computer is going to look pixelated.

A

Anonymous

Hi Steve,

The AVI video source is DV PAL at 25 fps (I live in New Zealand and we use the PAL TV system here) and was imported from my Sony mini-DV PAL camcorder using Adobe Premiere Pro and plays back perfectly in this application, and others, such as Windows Media Maker. I've created many projects in Adobe Premiere Pro using video from this camcorder and playback looks crisp. I'm only now using PE 8 because the screen layout is much nicer to work with on my PC (and the software version is currently supported by Adobe). The video also plays back ok in PE 8 but only when I have the 'Enable GPU playback' setting turned off, although video motion is a little choppy because it's using the CPU instead of the processing power of the nVidia graphics card. When I turn on the GPU playback (and then exit and restart the application as advised) the video playback is more pixelated but the video motion is restored.

I can confirm the project settings in PE 8 match the video source, DV PAL (25 fps) because when I add files to the timeline there aren't any red horizontal lines above them. In other words, the video doesn't need rendering beforehand, unless I apply effects or transitions which still doesn't improve playback quality. Also, I use the playback monitor inside PE 8 which takes up about 20% of the screen space of the entire working area - not full-screen playback because I understand the video quality can look much worse in full-screen mode. But even using the same playback monitor size in Adobe Premiere Pro the playback looks much crisper.

Interestingly enough, when I srub back and forwards through the video using the CTI line (when GPU playback is on) the video looks crisp, but the moment I hit Space or Enter the video playback quality is pixelated. This is very frustrating... the question I have is, why the difference? Why would PE 8 show crisp video as I use the scrub technique but then show pixelated video quality when the application plays it back normally from the timeline?

Nigel

nealeh

Inspiring

Burn the project to a DVD and see what it looks like on a real TV / DVD Player. The preview window can be very misleading depending on settings not just in PRE but also in Windows in general. One of the most common setup errors I see with modern displays is where users have not set their screen resolution to the native resolution of the display.

Cheers,
--
Neale
Insanity is hereditary, you get it from your children

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