I'll add some computer stats but honestly, I dont think they matter that much since the same system was running CS3 like a champ.
Dual Core 2 (2.4ghz e6600), 8gig DDR2 ram, Raptor 10k OS drive, 5x 320gig data drives. Nvidia 8800gts card. Vista Prem. 64bit.
I shoot on a Sony EX1 and after upgrading to CS4 I noticed an EXTREMLY slow playback on the preview. No effects added, just dragging down and simple cuts. The audio typically goes smooth though.
Any initial thoughts? or can I provide any more details to help what may be going on?
For the record, I had the same problem on a quad-core at 3.5GHz. Playback of the video would freeze but the sound would continue, and every 10 seconds or so, the video would advance to another frame. After 3 months of research, tweaking and troubleshooting, I reverted to CS3.
I tried it on two different, but similar workstations. The graphics card on one is 8800GTS, the other is Quadro FX4600. Problem is worse on the Quadro.
http://www.flickr.com/photos/39111115@N00/3442683593/sizes/l/in/photos tream/
http://www.flickr.com/photos/39111115@N00/3442684661/
Is that what you were looking for?
I've attached the dual screen one because its a little bigger
Something else that is interesting....
Playback on video is very choppy... yes in draft mode, tried letting the Hardware and Software do the aspect ratio conversion (dont know how necessary this is but both failed to improve the playback)
But when switching to RGB parade or Vectorscope, it STILL was choppy...
if i turn the eye off the video layer (so just audio is playing back) smooth as silk.
I found a temp fix that worked for a system a friend asked me to look at. It is not really a valid solution but it does seem to fix the problem at least until the root cause can be found. If you set the priority of the ImporterProcessServer to above normal, it seemed to fix the problem (at least on the system I was working on). To do this, open task manager, right click on the process and click Set Priority -> Above Normal.
Doing this isn't really recomended as it could take cycles from more important system processes or other critical processess. In this case, he just sets the priority up when he needs it, then back down when he is done.
In case you are wondering, the specs of the system I was working on are:
System:
Core2Duo e8400
Asus Maximus Formula Mobo
8gb DDR 800
GeForce 8800GTS 640 (latest drivers from NVidia)
1x750gb System drive
1x1.5tb Video storage
1x1.5tb Swap / Render drive
Windows 7 64 Beta build 7048
Windows Vista 64 (dual boot)
Project:
Hockey game shot at 1080 60i + some shots at 720 60p. Each were in their own sequence.
He did mention that he still couldn't view multiple video streams without it slowing down, but at least he was able to view the normal footage without delay. Also, I performed and tested the fix only on the Windows 7 system, so I am not sure about Vista but it should help there as well. I look forward to hearing about a true fix.
Good Luck
FIX... but not a completely satisfactory one.
PROBLEM: Playback was choppy to the point it was uneditable.
CAUSE: Apparently this problem happens when your footage and sequence's have different resolutions. I have created new sequences and the footage played back fine.Most of my work i shoot on 1920x1080 and edit it for DVD. SO I edit it in the correct resolution... that is what causes this problem in CS4 apparently.
IT's nice that CS4 upgrade allows you to make sequences with different resolutions in a single project. However, i never saw the slow down that I see when pulling mismatched resolutions.
i shoot on 1920x1080 and edit it for DVD. SO I edit it in the correct resolution.
The way I read that is you're editing in a 1920 x 1080 sequence, which would be correct for that media. But somehow I think you meant that you're editing in a 720 x 480 sequence because you're final output is DVD, but that would be an incorrect sequence because it doesn't match your media.
The 'correct' sequence preset is one that matches your media, not your intended output.
Nick Schale wrote:
Let me clarify,
I shoot my footage in 1920x1080.
Most of the final output is SD DVD 720x480.
SO I edit in 720x480. <<<---This was the problem causing the choppyness.
The proper workflow is to edit your show completely in a sequence that matches the native resolution. So you edit in 1920x1080 and finish your production. Nest the HD sequence into an SD 720x480 sequence (for export only) and scale the nested sequence appropriately.
When you export, make sure that Maximum Rendering Quality is checked for both sequences, or Pr will give you lousy deinterlacing and scaling.
Note: Hopefully someday we'll be able to create a single, native-resolution sequence and just add it to the Adobe Media Encoder queue one or more times with different export settings, but that's not the case currently. For now, you need to create a sequence for each export format that you'll need, and then add those individual sequences to the queue with their matching export settings.
-Jeff
Awesome post
Thank you.
Let me also give the reason I shoot that big for a screen that small... panning and zooming :/ I see doing this as a bit of a problem with the correct workflow you posted.
Maybe i am overlooking something though...
or... do i just need to have everyone frame their shots carefully from here on.
Well.....I thought the point of having a HiDef camera was to make HiDef movies?
Are you saying you're shooting in HD but will only deliver SD content? If that's the case, then convert the HD footage to SD before you ever import it into Pr. I don't know about your camera, but some HD cameras will output SD during capture if that's what's needed. And there are free, 3rd-party tools that can do the conversion much better than Pr.
-Jeff
Ha, tell that to the dancer kid's moms... i would love to make ONLY BluRay discs for them
But as it stands MY purpose for having a HiDef cam is to have the ability to shoot up to HiDef and still knock out standard def projects. I have a feeling you were adding a little bit of joking to that though.
As far as downconverting before importing.
Again, I do this to be able to pan/zoom the shots. If I downconvert first, that takes away from the ability.
Nick Schale wrote:
Ha, tell that to the dancer kid's moms... i would love to make ONLY BluRay discs for them
But as it stands MY purpose for having a HiDef cam is to have the ability to shoot up to HiDef and still knock out standard def projects. I have a feeling you were adding a little bit of joking to that though.
As far as downconverting before importing.
Again, I do this to be able to pan/zoom the shots. If I downconvert first, that takes away from the ability.
I was joking. ![]()
Once your rough cuts are done in the HD sequence, you could nest it in the SD sequence and then animate the Scale and Position properties to properly frame the shots. IMHO that type of animation doesn't require playback quite as smooth as generating the rough cuts does.
But if smooth playback is essential to you even for animation, then export an intermediate file using a lossless codec like Lagarith or using a high bit rate I-frame only MPEG2 file and then animate that intermediate clip in the SD sequence.
But I think Jim confirmed the best solution - make sure the shots are framed properly to begin with. Then you won't need to pan and zoom *unless* your clients won't accept letterboxed SD. At which point you should charge them extra for a "full screen" version. (only half-joking here).
-Jeff
Hi- I am having a similar problem, and got most of this discussion, but need more help. I have 3 video files, each with different image sizes (among other things). How would you suggest that I work with this? To start, I can't get this single file to play in Premiere CS4 (even without adding the other files). Can you please help me get this to play correctly? I don't think that this is a hardware problem. Thank you.
Type: QuickTime Movie
File Size: 3.6 GB
Image Size: 640 x 480
Pixel Depth: 24
Frame Rate: 30.00
Source Audio Format: 44100 Hz - 16 bit - Mono
Project Audio Format: 44100 Hz - 32 bit floating point - Mono
Total Duration: 00:48:00:22
Average Data Rate: 1.3 MB / second
Pixel Aspect Ratio: 1.0
QuickTime Details:
Movie contains 1 video track(s), 1 audio track(s) and 0 timecode track(s).
Video:
There are 86422 frames with a duration of 1/30th.
Video track 1:
Duration is 0:48:00:22
Average frame rate is 30.00 fps
Video track 1 contains 1 type(s) of video data:
Video data block #1:
Frame Size = 640 x 480
Compressor =
Quality = Least (1.00)
Audio:
Audio track 1 contains 1 type(s) of audio data:
Audio data block #1:
Format = 16 bit - Mono
Rate = 44100.0000 Hz
Compressor = 16-bit Little Endian (uncompressed)
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