When exporting out of Premiere...

[bsuska]

does the program (Premiere) access the preview files created or the original file? For instance...the original file is not interlaced but the preview file would be interlaced (because of the NTSC preset) hence I would need to deinterlace upon export?

Thanks in advance.

[poisondeathray]

Within the program, the preview that you see is deinterlaced

The decision to deinterlace upon export is determined by your export format goals. e.g. if it's for web you would deinterlace, for DVD you wouldn't etc...

[bsuska]

"Within the program, the preview that you see is deinterlace" I don't understand how that can be true if the project preset that I'm using is NTSC with interlaced clearly stated in the parameters.

Let's say that I'm going to web video...why would I need to deinterlace an already deinterlaced preview file? To me, the video preview file would be dictated by my project preset. So if I'm using a interlaced project preset those preview files would be intelaced meaning I would need to deinterlace. But if it is accessing my original file (which was not interlaced) there would be no reason to deinterlace.

[poisondeathray]

Modern versions of Premiere don't use preview files for final render, unless you tell it to

Only the preview you see is deinterlaced; let's put it this way: If you see scan lines, how can you put titles etc. and edit the video? Internally , if the source is interlaced, and the sequence setting matches, the editor still "sees" it as interlaced. However, the preview in the program monitor is deinterlaced otherwise you couldn't edit it. i.e. only the preview you see is deinterlaced , but internally it will still be the same as whatever the source and sequence settings were.

When you export it interlaced in AME, it will keep the interlacing. If you set progressive, it will deinterlace. If you tell it to use preview files, it will use the low quality preview files for final render instead of the original quality source files (not a good idea)

[bsuska]

Cool...Poison...thanks for the detailed explanation.

A request that I frequently get is to grab video off of YouTube and then comvert them to a wmv for Powerpoint insertion.

Since my realtime Matrox card handles 720 x 480 (.9) video the best I will frequently use that preset and then import my uncompressed avi web video. Of course I then need to render this file within Premiere because it doesn't match my preset. When setting up for export I was pondering the question I posted earlier. Not sure if this is the best workflow...

[poisondeathray]

Can you clarify what your question is? Not sure what you're asking

If the source is Youtube video, it will already be a compressed .flv or .mp4 and progressive - the decision to deinterlace will not apply in this case

You can use a custom preset in PP to edit (you don't have to use the bundled ones), you can use custom dimensions, fps etc...

I wouldn't bother using the matrox card if this is SD content. You should be able to edit it natively in realtime regardless. You shouldn't need to use an intermediate. Your settings should be dictated by what your export goals are ,not trying to force it to make it work with the matrox card

[bsuska]

I use a program entitled Capture Wiz that will let me screen capture what is on my monitor. I then have to convert it to an avi format. I do have the option to compress it to a wmv at this point, but frequently I need to edit it slightly, so I need a format that I can bring into Premiere.

I don't know how to just grab the native flv or mp4 file from YouTube.

I also am not that familiar with PP. I wasn't sure that it could handle flv and mpeg files. I usually distribute all of my content via wmv because I know that will run natively on Windows. Most of the time the sales reps I deal with can't do much more than double click :0)

So you are suggeting that I would create a project custom project in Premiere that matches my source file dimensions? Frequently, these dimensions can vary and be random. From there export to those same dimensions avoiding any upscaling?

[poisondeathray]

I use a program entitled Capture Wiz that will let me screen capture what is on my monitor. I then have to convert it to an avi format. I do have the option to compress it to a wmv at this point, but frequently I need to edit it slightly, so I need a format that I can bring into Premiere.

I don't know how to just grab the native flv or mp4 file from YouTube.

Don't do this. You will be losing quailty at several stages each time it's converted, unless you capture in a lossless format, and each conversion is in a lossless format. It's always best to use the native format if you can. You can use the firefox plugin, or videodownloadhelper, or dozens of other "youtube downloaders". The videos are stored in your temp internet directory as well once fully downloaded; you don't need any other programs or plugins

I also am not that familiar with PP. I wasn't sure that it could handle flv and mpeg files. I usually distribute all of my content via wmv because I know that will run natively on Windows. Most of the time the sales reps I deal with can't do much more than double click :0)

So you are suggeting that I would create a project custom project in Premiere that matches my source file dimensions? Frequently, these dimensions can vary and be random. From there export to those same dimensions avoiding any upscaling?

You might have problems with .flv ( you might have to convert that to a lossless AVI, or use avs import plugin if you're familiar with avisynth), but most of the videos are now .mp4, only the very old ones are .flv

Yes I'm suggesting to ues settings that match the source. If you have mixed sources, use one that will be common to your final format export goal. Eitherway, they will all be progressive and square pixel, just the framerates and dimensions might differ.

[bsuska]

Thanks for the advice, Posion.

[bsuska]

One more quick question Poison while I have you on the line...

Frequently, I will save out a DVD in Virtual Dub Mod. Which video mode should I use? i.e. Full processing, normal recompress, fast recompress or direct stream copy...

Also, I have noticed that even when I save this as a Matrox DV/DV Cam file it will still need to be rendered on my Premiere timeline?

[poisondeathray]

If you exported out of vdubmod as a DV-AVI file properly, it shouldn't need rendering (you should see no red render bar) . This suggests something wrong with your settings, or mismatched sequence settings within PP. You could try another encoder , like cedocida. Note PP loves DV-AVI, and it should be possible to edit multiple layers deep even with an old single core computer. However, DV-AVI is lossy, so some people prefer using uncompressed or lossless intermediates. CS4 can import MPEG2 directly, you don't need vdubmod (unless you're doing something else in there)

If you are doing no filter processing in vdubmod (i.e. only cuts editing), use direct stream copy and it will bypass the YUV=>RGB conversion and subsequent RGB=>YUV quality loss. Use fast recompress if you use no filtering, and full processing if using filtering (will convert internally to RGB)

[bsuska]

I just did a test...and exported out of vdobmod. Premiere did not need to render the file. I'm using a NTSC DV preset. Does this mean that the DV file I captured is interlaced? I thought that if order for Premiere not to have to render something it had to have matching settings. i.e. framerate, size, interlacing...

[poisondeathray]

If there is no red render bar when you drop footage on the timeline, that means the footage matches the sequence settings

[aedipuss]

and yes if it's DVavi it's always interlaced.

[bsuska]

So when I select the Matrox DV under compression in vdobmod it must automatically render if will lower field first. That makes sense, so I ran a test and tried exporting that same file out of Premiere two different ways. One with "deinterlace video footage" selected and one without. The resulting file that had deinterlace video footage selected had the titles and text look worst than that other. You'd think the deinterlaced version would look better.

[poisondeathray]

and yes if it's DVavi it's always interlaced.

There are progressive DV variants, and 2:3:3:2 pulldown

[poisondeathray]

So when I select the Matrox DV under compression in vdobmod it must automatically render if will lower field first. That makes sense, so I ran a test and tried exporting that same file out of Premiere two different ways. One with "deinterlace video footage" selected and one without. The resulting file that had deinterlace video footage selected had the titles and text look worst than that other. You'd think the deinterlaced version would look better.

This is a whole other topic. Premiere sucks at deinterlacing. Do a search, I've addressed this exact issue several times. The workaround is to use avisynth deinterlacers.

[bsuska]

Gotcha...I've probably been on the receiving end of some of those threads. I do my best never to use Premiere for deintelacing, but in theory this file should be deinterlaced when exporting to a computer file (i.e. Quicktime or Windows Media).

[bsuska]

I think a better statement would be "all NTSC DV" is interlaced.

[aedipuss]

crap you're right i did forget one.... DVCPRO progressive.

[bsuska]

I remember how confusing it intitially was for me when you had the option to export to DV and then choose between lower field, upper field, or progressive.