lavc: Fix msvc compilation of utils.c with -WX (warnings treated as errors)

This fixes https://bugzilla.libav.org/show_bug.cgi?id=514.

Signed-off-by: Martin Storsjö <martin@martin.st>
yadif: restore speed of the C filtering code

Always use the special filter for the first and last 3 columns (only).

Changes made in 64ed397 slowed the filter to just under 3/4 of what it
was.  This commit restores the speed while maintaining identical output.

For reference, on my Athlon64:
1733222 decicycles in old
2358563 decicycles in new
1727558 decicycles in this

Signed-off-by: Anton Khirnov <anton@khirnov.net>
yadif: correct strides in filter_edges_16bit

The C code treats the data as arrays of uint16_t so strides must not
be in bytes but in pixels.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
aacenc: Fix a rounding bug in aacpsy channel bitrate computation

Signed-off-by: Martin Storsjö <martin@martin.st>
aacenc: Fix target bitrate for twoloop quantiser search

This fixes a case where multichannel bitrate isn't accurately
targetted by psy model alone, never achieving the target bitrate.

Signed-off-by: Martin Storsjö <martin@martin.st>
aacenc: Fix erasure of surround channels

This was due to a miscomputation of s->cur_channel, which led to
psy-based encoders using the psy coefficients for the wrong channel.

Signed-off-by: Martin Storsjö <martin@martin.st>
vc1dec: fieldtx is only valid for interlaced frame pictures

The fieldtx_plane is not cleared for interlaced fields.

Signed-off-by: Martin Storsjö <martin@martin.st>
vc1dec: Don't attempt error concealment on field pictures

This is not implemented and doesn't work.

Signed-off-by: Martin Storsjö <martin@martin.st>
vc1: implement frame interlaced b-frame header parsing

Signed-off-by: Martin Storsjö <martin@martin.st>
vc1dec: Don't apply the loop filter on fields

Fixes read of uninitialized memory.

Based on a patch by Michael Niedermayer.

Signed-off-by: Martin Storsjö <martin@martin.st>
dynamic loading of shared faac library
no Werror on implicit-function-declaration and missing-prototypes
custom icon and windows resource
use upstream version tag, my repo is always rebased