ADS Technologies USBAV-708 INSTANT VIDEOMPX, Руководство пользователя

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While 1-pass mode is fast and particularly suited to certain situations, Multipass
encoding offers more consistent quality by allowing the encoder to first analyze
the entire video before encoding it.
Load VirtualDub and configure it as you did in
Your first DivX steps 1 through 5 but this time
set the Variable bitrate mode to “ Multipass,
1st pass ”.
When you save a video in
Multipass, 1st pass
mode the encoder will generate a log file that
contains an analysis of the video but no actual
video output will be generated.
Enabling
Write MV file allows the encoder to
make use of a technique that accelerates
successive Multipass passes.
Save your AVI file using a suitable file
name. You don’t need to use a separate
file name for every pass that you
perform, so as before simply choose a
name that fits the video.
Without closing VirtualDub re-configure the
encoder by setting
Variable bitrate mode to
“ Multipass, nth pass ” and ensure “ Update
log file ” and “ Read MV file ” are enabled.
When you save a video in
Multipass, nth
pass mode the encoder will use the analysis
log from the previous pass to help it encode
the video with a consistent quality but still
targeting the bitrate you have specified.
Your first Multipass
1 .
2 .
3 .