Changing flush type from Z_FINISH is needed since encoder compresses fixed
amount of data and doesn't care about writing end of stream marker.

Input: 01-Untitled-partial.oma
ZZUF params: zzuf[s=7157,r=0.001]

Fixes Bugzilla #106

Bug-found-by: darkshikari
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Protects against overreads.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

The preset files have been renamed some time ago.

CC: libav-stable@libav.org

Timebase is already checked in avpriv_set_pts_info().

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

Fixes invalid writes and crashes when doing conversions such as stereo to 5.1
channels or sample rate conversion on 5.1 channels.