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Author
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Topic: Re-Compression
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Tek2019
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posted 12-17-2000 05:05 PM
When I'm editing on my computer I always compse shots as uncompressed until I do the final edit together. Is this necessary? Qould there be aproblem with re-compressing something to a DV codec multiple times?
Would it get pixelated? |
David.A
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posted 12-17-2000 05:51 PM
Its better to work with compressed files! then you will have more space over for more!  i dont think that is a problem if you dont compress it to hard and use a high resulotion.. like full pal/ntsc.. like 720x540 will work fine.. you can even go with 640x480 and it will look fine too. good luck |
BIG JIM SLATE
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posted 12-17-2000 07:24 PM
Well, it depends on if you're working with a good form of compression, like the DV one in digital cameras. If you capture and compress it to DivX or Indeo, then REcompress it when exporting it, it will be a horrible pixellated mess. GIGO.~BJS |
Tek2019
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posted 12-17-2000 10:09 PM
So I can compress to DV. Change some stuff. Recompress to DV. do it a few more times. Export to my camera and it will look fine? cool!! thanks for the help |
BIG JIM SLATE
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posted 12-18-2000 08:25 AM
With a DV codec in any DV cam, you should be perfectly fine. Even though its a 5:1 compression ratio, I think it can be recompressed a good 6 times or so before anything is noticable. If your original source is analog though, I wouldn't recommend using any compression while working on it.~BJS [This message has been edited by BIG JIM SLATE (edited 12-18-2000).] |
BIG JIM SLATE
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posted 12-18-2000 08:26 AM
EDIT:***SORRY*****DOUBLE POST********[This message has been edited by BIG JIM SLATE (edited 12-18-2000).] |
multimedia light & magic
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posted 12-18-2000 03:44 PM
i have had such horrible experiences with codecs and re-compression.my first project i didn't know anything about codecs, and it came out horribly blocky. for teh "2nd release" i re-encoded it 5x with the cinpak codec. and came out pretty good. lately i have been using the YU12 codec by ATI. great sound and picture, but the filesize is ridiculous!! 2 gigs for 10 min at 320x240?? and it's soooooo slow to compress with another codec after i put it all together... i say, use 1 codec for all of it. it might save your sanity.  |
Eddie N
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posted 12-18-2000 04:02 PM
ive always read and been taught that its always best to edit in the highest bitrate in audio , and the least compression with video until it was time to dither or compress the final project... only work with compressed files if you have too , otherwise youll always be saying to yourself "gee , i wonder what it would look like if i didnt compress it 4 times before the final output"...- eddie - www.dvforums.com |
Smiley Films
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posted 12-18-2000 06:49 PM
i notice that with the dv codec re compresion does not show a noticable ammout of quality lossage if your footage was filmed in a bright atmosphere, but if it was filmed at night then your footage gets a greenish tint. |
