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| author | jonas <jonas@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-03-22 12:02:27 +0000 |
|---|---|---|
| committer | jonas <jonas@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-03-22 12:02:27 +0000 |
| commit | 169af37678fc9a229fb1a7eace20ed381fadd66c (patch) | |
| tree | eda8c795685fd13e667204b9b31084506e9e4317 /DOCS/tech/encoding-tips.txt | |
| parent | bb34e79aa6e60ae8493b712d407ff979559c8643 (diff) | |
| download | mpv-169af37678fc9a229fb1a7eace20ed381fadd66c.tar.bz2 mpv-169af37678fc9a229fb1a7eace20ed381fadd66c.tar.xz | |
vop -> vf change, small fixes. The Polish documentation should be checked for correctness.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9645 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'DOCS/tech/encoding-tips.txt')
| -rw-r--r-- | DOCS/tech/encoding-tips.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/DOCS/tech/encoding-tips.txt b/DOCS/tech/encoding-tips.txt index fc1836f961..0f485fb977 100644 --- a/DOCS/tech/encoding-tips.txt +++ b/DOCS/tech/encoding-tips.txt @@ -55,7 +55,7 @@ typical mencoder line: mencoder -dvd 1 -o /dev/null -oac copy -ovc lavc \ -lavcopts vcodec=mpeg4:vbitrate=1000:vhq:vqmin=2:\ vlelim=-4:vcelim=9:lumi_mask=0.05:dark_mask=0.01:vpass=1 \ - -vop scale=640:480,crop=716:572:2:2 + -vf crop=716:572:2:2,scale=640:480 Phew, all those parameters! Which ones should I change? NEVER leave out 'vhq'. Never ever. 'vqmin=2' is always good if you aim for sane @@ -77,7 +77,7 @@ $bpp = ----------------------- I've attached a small Perl script that calculates the $bpp for a movie. You'll have to give it four parameters: -a) the cropped but unscaled resolution (use '-vop cropdetect'), +a) the cropped but unscaled resolution (use '-vf cropdetect'), b) the encoded aspect ratio. All DVDs come at 720x576 but contain a flag that tells the player wether it should display the DVD at an aspect ratio of 4/3 (1.333) or at 16/9 (1.777). Have a look @@ -415,7 +415,7 @@ typically very "noisy", which doesn't help at all. Anyway : > First pass: > mencoder TITLE01-ANGLE1.VOB -oac copy -ovc lavc -lavcopts > vcodec=mpeg4:vhq:vpass=1:vbitrate=800:keyint=48 -ofps 23.976 -npp lb -> -ss 2:00 -endpos 0:30 -vop scale -zoom -xy 640 -o movie.avi +> -ss 2:00 -endpos 0:30 -vf scale -zoom -xy 640 -o movie.avi 1) keyint=48 is way too low. The default value is 250, this is in *frames* not seconds. Key frames are significantly larger than P or B frames, so the |