If the XV image linesize was different from the width, SDL would create an
overlay wider than the actually requested one. This causes a greenish line on
the right, because the rightmost texel is blended with unset data.  This patch
introduces a function which duplicates the rightmost texel to the unset space,
that way the blending will be done with duplicated border texels.
Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Found-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes unused variable warnings
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  wnv1: cosmetics, reformat
  xan: remove a trivially true if().
  ansi: do not depend on get_buffer() initializing the frame.
  zerocodec: remove an unused variable.
  zmbv: remove some pointless comments and empty lines

Conflicts:
	libavcodec/xan.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c6303f8d':
  yop: simplify/sanitize the decoding loop
  c93: set palette_has_changed.
  bmp: cosmetics, reformat
  hlsenc: Don't duplicate a string constant

Conflicts:
	libavcodec/bmp.c
	tests/ref/fate/yop
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '3193b13a':
  hlsenc: Allocate enough space for the pattern string
  lavc: Correct the description of pkt_dts
  avfilter: Compile FIFO filters unconditionally

Conflicts:
	libavcodec/avcodec.h
	libavfilter/Makefile
	libavfilter/allfilters.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'f3298f12':
  Return proper error code after av_log_ask_for_sample()
  configure: cosmetics: Separate hwaccel dependencies from decoders/encoders
  oggdec: check memory allocation

Conflicts:
	configure
	libavcodec/pictordec.c
	libavformat/anm.c
	libavformat/oggdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'f5f1cf52':
  oggdec: K&R cosmetic formatting
  hlsenc: correctly report target duration

Conflicts:
	libavformat/oggdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This function used to be shared with the xxan decoder, but that is not
true anymore.

The background changes from 128 (used by the default/cmdutils
get_buffer()) to 0. This looks more correct.

Do not overwrite linesize set by get_buffer().

The last frame in the FATE test is not decoded anymore, since the file
is cut and a part of it is missing.

Fixes Ticket1999
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket1947
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Audio API should not be considered unstable any longer, and mentioning
VHOOK is confusing, as it was removed 4 years ago.

This fixes the following warning with GCC:
    libavcodec/pthread.c:35:0: warning: _GNU_SOURCE redefined [enabled by default]
    <command-line>::0: note: this is the location of the previous definition

The reason of the presence of this flag is:
    % pkg-config --cflags sdl
    -D_GNU_SOURCE=1 -D_REENTRANT -I/usr/include/SDL

Just like doc/eval.texi, this file is meant to be included from
ffmpeg-utils.texi, and not to be used as a standalone documentation.

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