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Snow supports 3-pass mode and 9/7 wavelet doesn't work lossless mode.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15207 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
gpoirier 2005-04-17 18:41:05 +00:00
parent 5528785463
commit 1db57895de
1 changed files with 4 additions and 2 deletions
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6
DOCS/tech/snow.txt
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@ -20,8 +20,8 @@ OPTIONS RECOGNIZED BY SNOW
Note that 0 may not be specified; if you want lossless encoding, you
must leave out vqscale.
* vpass=<1|2>
Activates internal two pass mode.
* vpass=<1-3>
Activates internal two (or more) pass mode.
* vbitrate=<value>
Specify bitrate of the 2nd pass.
@ -37,10 +37,12 @@ OPTIONS RECOGNIZED BY SNOW
You can add 256 to any of the options to enable chroma motion
estimation for that comparison (e.g. mbcmp=257 for SSD with chroma),
but it doesn't seem to help much for the moment.
NOTE: 9/7 wavelet doesn't work with lossless mode.
* pred=<0-2>
Wavelet type. 0 (9/7 wavelet), 1 (5/3 wavelet), 2 (13/7 wavelet).
9/7 is probably better for for lossy coding, and 5/3 for lossless.
NOTE: 9/7 wavelet doesn't work with lossless mode.
* last_pred=<0-3>
Tries a few extra predicted motion vectors before doing EPZS search,