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Compression for a stills/text/fx-heavy piece? December 20, 2006 02:14AM |
Registered: 17 years ago Posts: 274 |
Hi Y'all-I also posted this on Cafe LA-
I'll be wrapping up that job, after a brief hiatus, Wednesday (today). The content is a little bit of video (first section and then peppered throughout), but mostly stills (about half snapshots with moves on 'em, and half scanned pages from magazines), lots of text and multiple layers of both text and images. I did a down n' dirty, fast, one-pass compression last week - just so we'd have a DVD of the rough-cut for reference during our hiatus - but now I need to do the best possible compression for the final DVD.
It is not for broadcast, it will be projected at a live-event first, and then copies given out that will be shown on NTSC monitors. It's the projection that concerns me as the text from the magazine covers and also the FCP motion-text (in many different colors at various points) will look blurry when blown up large I'm sure.
The client also insisted on red text in multiple instances, which I did not recommend. Thinking about trying that "broadcast safety" color correct pre-set just to minimize "bleeding." Any comments on this welcome, never done it before.
I do plan to use 2-pass compression, ordinarily I'd just try out the 90 minute encode, 2-pass option in compressor, but if anyone has any customized settings or bit-rates to try with text heavy and stills-heavy material I would appreciate hearing the details,
Thanks lots,
Marla
I'll be wrapping up that job, after a brief hiatus, Wednesday (today). The content is a little bit of video (first section and then peppered throughout), but mostly stills (about half snapshots with moves on 'em, and half scanned pages from magazines), lots of text and multiple layers of both text and images. I did a down n' dirty, fast, one-pass compression last week - just so we'd have a DVD of the rough-cut for reference during our hiatus - but now I need to do the best possible compression for the final DVD.
It is not for broadcast, it will be projected at a live-event first, and then copies given out that will be shown on NTSC monitors. It's the projection that concerns me as the text from the magazine covers and also the FCP motion-text (in many different colors at various points) will look blurry when blown up large I'm sure.
The client also insisted on red text in multiple instances, which I did not recommend. Thinking about trying that "broadcast safety" color correct pre-set just to minimize "bleeding." Any comments on this welcome, never done it before.
I do plan to use 2-pass compression, ordinarily I'd just try out the 90 minute encode, 2-pass option in compressor, but if anyone has any customized settings or bit-rates to try with text heavy and stills-heavy material I would appreciate hearing the details,
Thanks lots,
Marla
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Re: Compression for a stills/text/fx-heavy piece? December 21, 2006 05:23PM |
Moderator Registered: 17 years ago Posts: 2,646 |
Heavy duty compression is usually associatd with high rate change video. Fast motion or huge color saturation changes. Basically where the entire frame of pizels needs to change rapidly.
MPEG-2 encoding is really about how many pixels change between frame x and frame y and the difference is what you come back with.
So, assuming you have mostly still photos in a Quicktime .mov file - I would sugget you go for a low bit-rate single pass since the 2-pass takes a pre-look at th content to spot potential trouble spots and that take a very long time.
As far as the Red color, we all love to hate, drop the broadcast filter onto that clip to minimize the color problems.
MPEG-2 encoding is really about how many pixels change between frame x and frame y and the difference is what you come back with.
So, assuming you have mostly still photos in a Quicktime .mov file - I would sugget you go for a low bit-rate single pass since the 2-pass takes a pre-look at th content to spot potential trouble spots and that take a very long time.
As far as the Red color, we all love to hate, drop the broadcast filter onto that clip to minimize the color problems.
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