Change #228359

Comments

avcodec/vp6: Don't reload unnecessarily often in get_vlc2()
The VLC trees used here have very few different codes
and are therefore guaranteed to not be very deep: The AC/DC
VLCs have 12 elements and therefore a depth <= 11 whereas
the run VLCs have only nine elements and therefore a depth <= 8.
This allows to reduce the worst-case number of reloads for
reading a VLC code.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

Changed files

• libavcodec/vp6.c