Improve error reporting.

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

swr_free() already checks for nullness, no need to add the check in
calling code.

The comment now references swr_convert(), rather than audio_convert(),
which was deprecated and/or dropped.

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: Paul B Mahol <onemda@gmail.com>

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

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

This was never true for FFmpeg in this form.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

checkheaders doesnt pass and noone has even noticed since a very
long time.

checkheaders is also unmaintained (please add yourself to MAINTAINERS
if you want to maintain it)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* qatar/master:
  flv: add support for G.711
  doc: git: Add checklist with test steps to perform before pushing
  flvenc: K&R formatting cosmetics
  movenc: Add channel layouts for PCM.

Conflicts:
	libavformat/flvenc.c
	tests/ref/fate/acodec-pcm-s16be
	tests/ref/fate/acodec-pcm-s24be
	tests/ref/fate/acodec-pcm-s32be
	tests/ref/fate/acodec-pcm-s8
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Favor av_buffersrc_add_ref() instead, which is more powerful.

Reviewed-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Below fixes the maximum reference count check for second reference list in
non-B frames.  There is nothing to prohibit full (field sized) reference
list in this case as far as I can tell, and this fixes several syntax-test
files here (this is a regression caused when this check was made more
stringent by
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=dc9ce40069bde3d28f8d0b3e5bd733ae255fecb5)

Probably a silly corner case seldom seen irl, but thought I'd pass along
in case there was interest in correcting the check.

---------------

h264: Fix maximum reference count check for non-b frames; full range is
technically ok
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Using -t on an input already have surprising results.
Furthermore, using it on an input or an output makes
a real difference if there are speed-altering filters.

Implementing -t for inputs will probably result in some
behavour changes.

The warning silenced was: libavfilter/af_amerge.c:144:29: warning: conversion specifies type 'long long' but the argument has type 'int' [-Wformat]

The warning was introduced after FF_API_SAMPLERATE64 removal.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes Ticket1439
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

Signed-off-by: Michael Bradshaw <mbradshaw@sorensonmedia.com>

* qatar/master:
  mss1: validate number of changeable palette entries
  mss1: report palette changed when some additional colours were decoded
  x86: fft: replace call to memcpy by a loop
  udp: Support IGMPv3 source specific multicast and source blocking
  dxva2: include dxva.h if found
  libm: Provide fallback definitions for isnan() and isinf()
  tcp: Pass NULL as hostname to getaddrinfo if the string is empty
  tcp: Set AI_PASSIVE when the socket will be used for listening

Conflicts:
	configure
	libavcodec/mss1.c
	libavformat/udp.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

The blue is difficult to read on several peoples terminals with black background.
Idea-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

about 4 times faster
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes ticket1320
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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