Fixes build errors with nasm introduced in 6f40e9f0 for stack
memory alignment. Noticed by BugMaster.

This requires to move the avcodec_default_free_buffers() call to
ff_MPV_common_end() since otherwise delayed pictures would get freed
during a size change.

Direct rendering capable decoders call get_buffer() which will set the
frame parameters.

Prevents frames with wrong parameters when a decoder outputs delayed
frames after a resolution or pixel format change.

Fixes a crash in the fuzzed sample sample_varPAR.avi_s26638 with
alternating bit depths.

Note the time base for the option. Add an additional example description.

Currently it will do padding, but it does not properly handle
start-of-stream trimming as documented.

The max_comp option is supposed to limit maximum compensation, but
currently the clipped value is not actually used.

Interlacing is not supported at all and mismanaged down the normal
codepaths causing possible buffer management issues.

CC: libav-stable@libav.org

Found-by: pawlkt
CC: libav-stable@libav.org

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

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

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

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

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

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

The previous comment about the buffer was wildly inaccurate and
misleading.
Signed-off-by: NMartin Storsjö <martin@martin.st>

These stem from back when both the rtp muxer and rtp depacketizing
shared the same struct.
Signed-off-by: NMartin Storsjö <martin@martin.st>

This fixes potential buffer overwrites.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

This decoder is quite simple and none of the MpegEncContext complexity
is actually needed.

Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

Use this in VP8/H264-8bit loopfilter functions so they can be used if
there is no aligned stack (e.g. MSVC 32bit or ICC 10.x).
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

This allows AudioMix to be treated the same way as other conversion contexts
and removes the requirement to allocate it at the same time as the
AVAudioResampleContext.

The current matrix get/set functions are split between the public interface
and AudioMix private functions.

Avoids trying to read a packet with 0 or negative size.
Avoids a potential infinite loop due to seeking backwards.

Partially based on a patch by Michael Niedermayer.

This changes the LOCAL_ALIGNED definition on systems where
DECLARE_ALIGNED is used so it matches the manual alignment
case, ensuring invalid use will not compile on x86 only to
fail on everything else.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This fixes removal of TOOLS as well as HOSTPROGS declared in the
top-level Makefile.  The clean target in common.mak needs to be
eval'd since the variables used within are reset for each library.
Signed-off-by: NMans Rullgard <mans@mansr.com>

The initial testing of the VFW binary codec was flawed,
likely due to an AviSynth bug.

Re-testing using VirtualDub and various professional editing
applications has revealed it should have been flipped.
Signed-off-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

This comment was added in e309128f, in 2002, and has been brought
along since then more or less unmodified.

The first point of the todo was implemented in dbf30963 in 2006,
the second one is not relevant to rtpdec.c (brought along from
rtp.c in 8eb793c4 in 2008) but would be more relevant to the
rtp muxer, although it isn't a good idea anyway.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

This function is an exact duplicate of the generic one.
Signed-off-by: NMans Rullgard <mans@mansr.com>

This macro has never been used.
Signed-off-by: NMans Rullgard <mans@mansr.com>