This fixes a double-free crash if lists are the same due to the two
merge_ref() calls at the end of the (useless) merging that happens.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Rationale is the same as for video width/height etc.

ZeroCodec relies on the keyframe flag being set in the container, and
prev is the previously decoded frame. A keyframe flags incorrectly set
will lead to this condition.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Our code should be terse and clear.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

This fixes a number of unused-but-set gcc warnings.

libavcodec/dvdec.c:344:12: warning: assignment discards ‘const’ qualifier from pointer target type

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

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

The function is not implemented (and possibly useless).

The scale filter is used for internal colorspace conversions, so it must
always be present.

Fixes https://bugzilla.libav.org/show_bug.cgi?id=244

The strtol() interface makes it difficult to use with
const-qualified pointers.  With this change, although
the const is still lost, the compiler does not warn
about it.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

This is logical and also fixes checking for the fourth plane offset.

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

This is required for SIMD optimisations.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

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

This avoids memory leaks if there actually was some extradata
set before.
Signed-off-by: Martin Storsjö <martin@martin.st>

This removes one level of indentation.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

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

Add/fix spacing, split long lines, align assignments where suitable.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Martin Storsjö <martin@martin.st>

Split long comments, move long comments at the end of lines to
separate lines above, fix vertical alignment, fix up comment style
(unify trailing dots - comments had a mix of 2, 3 or 4 dots, where
it would be just as good without them at all).
Signed-off-by: Martin Storsjö <martin@martin.st>

It is worth keeping instead of removing, in case reading this
bit becomes necessary at some later point.
Signed-off-by: Martin Storsjö <martin@martin.st>

This is not an erroneous condition, do not print a warning.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

Based on observations made by Jakub Stachowski <qbast@go2.pl>
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

assert is a no-op if DEBUG isn't defined.
Signed-off-by: Martin Storsjö <martin@martin.st>