The optimized dct_quantize template functions reference optimized
fdct symbols, so these functions must only be enabled if the relevant
optimizations have been enabled by configure.

This avoids trouble if HAVE_ variables are used elsewhere in the file.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

This introduces support for width%4==2 in addition to width%4==0. For
odd widths, some more checks are needed, since the current code always
handles two luma items in a row, thus there is a possibility of an
overread by one.

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

The Windows SDK in MSVC doesn't have mkdir, only _mkdir, and
MSDN says one should include direct.h to use it.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

This is required for playback with the Stagefright RTSP framework
on Android.
Signed-off-by: Martin Storsjö <martin@martin.st>

Avoid code duplication and provide faster and better compression.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The function will be used by utvideo as well.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Using the malloc variant avoids pointless memcpy on size
increase and simplifies handling allocation failure.
Also change code to ensure that allocation, bswap and bitstream
reader all use the same size, even when the packet size is odd
for example.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

There is no need for this depacketizer to set the pixel format,
the decoder can do that just fine.
Signed-off-by: Martin Storsjö <martin@martin.st>

This fixes crashes introduced by 2e8f3cbc, the codec can be null
when called from parsers.
Signed-off-by: Martin Storsjö <martin@martin.st>

This fixes building with DEBUG defined after the function was made
static and the prototype removed in d7f9786c.
Signed-off-by: Martin Storsjö <martin@martin.st>

This is a preparatory step for the MSS2 decoder which needs to use
the WMV9 decoder to decode some kinds of frames.

From the patch by Alberto Delmás <adelmas@gmail.com>

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

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

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

This reverts commit 484a337c.

These functions were used in f8bed30d "VC1: merge idct8x8, coeff
adjustments and put_pixels" which was reverted in 18b6a69c.
Signed-off-by: Mans Rullgard <mans@mansr.com>

OpenBSD does not expect or require symlinked shared libraries with
just the major version in the name.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Instead, use it on the first member, since by definition, if
any member is aligned, the whole struct must be, in order to
maintain that alignment.

Fixes compilation with some finicky compilers.

Idea for fix from Måns Rullgård.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

They have most of their code in common.

This also makes sure the function pointers are stored via the same
union member as they are accessed via.
Signed-off-by: Martin Storsjö <martin@martin.st>

Compilation seems to fail on GCC 3.4 due to this duplicate
declaration.
Signed-off-by: Martin Storsjö <martin@martin.st>

This C99 feature is generally not used in the libav codebase,
since it breaks building with some fringe compilers (GCC 2.95,
MSVC).
Signed-off-by: Martin Storsjö <martin@martin.st>

The condition for calling the rtpdec cleanup was broken in
df8cf076.

This fixes a memory leak.
Signed-off-by: Martin Storsjö <martin@martin.st>