This allow specifying hexadecimal channel layout, and also handle the
error printing internally.

The errors need to be defined before including functions depending on
them. See av_size_mult() for instance. stddef.h is included for the
prototype of av_sterror (use of size_t).

all_channel_layouts.h is not a real header file and breaks make checkheaders.

The difference from this should be pretty small.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

This fixes a regression that apparently was missed when switching to the
in af resampler
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* cus/stable:
  ffplay: put aspect ratio info to the VideoPicture struct
  ffplay: use AVFrame::width and height instead of using codec or filter settings
  ffplay: use stream sample_aspect_ratio if available in source frames
  ffplay: fix video_thread when no frame is returned in get_video_frame
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

Allow to explicitly specify the channel layout to select.

* qatar/master:
  pcmenc: set correct bitrate value
  avprobe: don't print format entry name when only one was requested

Conflicts:
	ffprobe.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Inspired-by code from af_resample.c written by Anton Khirnov
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Issue found by comparing af_resample.c and af_aresample.c
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Deprecate -vol.

Inspired by asyncts auto-insert patch from Anton Khirnov.

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

* 'audio-filters' of https://github.com/ubitux/FFmpeg:
  lavfi/pan: add supported sample rates to avoid a crash.
  ffmpeg: do not warn when expecting EOF from lavfi.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

this way it can easily be detected when parameters have not been set
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>