x86: ac3dsp: Remove 3dnow version of ff_ac3_extract_exponents

The function requires increasing the fuzz factor for the ac3/eac3 encode
tests and even so makes fate fail. It only provides a slight encoding
speedup for legacy CPUs that do not support SS2. Thus its benefit is not
worth the trouble it creates and fixing it would be a waste of time.
hls, segment: fix splitting for audio-only streams.

CC:libav-stable@libav.org
avplay: remove a warning

Set the data field in the flush_pkt to the pointer to the actual packet.
The field needs to contain a valid unique pointer, no read nor writes
are ever made to it.
oma: K&R formatting cosmetics
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  x86: ac3dsp: Remove 3dnow version of ff_ac3_extract_exponents

Conflicts:
	tests/fate/ac3.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
astats filter

Signed-off-by: Paul B Mahol <onemda@gmail.com>
ffv1: Store a flag in the global header that indicates if all frames are keyframes

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffv1dec: add code to support frame threading with gop=1 ffv1

CODEC_CAP_FRAME_THREADS is not added yet because that would
unconditionally enable it, breaking gop>1 files.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffv1dec: remove redundant error message.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
fate: Invoke standard lavfi tests through fate-run.sh
fate: Invoke pixdesc lavfi tests through fate-run.sh
fate: Invoke pixfmts lavfi tests through fate-run.sh
doc/filters: fix grammar for removelogo filter doc sentence
doc/filters: readjust w/h option descriptions
h264_refs: Do not print check_opcodes() return value

The return value provides no useful information and removing the printing
avoids the following warning:
libavcodec/h264_refs.c:788:15: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
lavfi/transpose: restore validity of values in range 4-7

They were lost in commit a4e0defa75b6f766aa31d80c55688d036b5fd87b.
lavfi/transpose: reindent constants
doc/filters: update/extend transpose filter documentation

In particular, deprecate numerical values for the dir option.
lavu/mem: remove redundant comment from av_dynarray_add()

The function is documented in mem.h.
ffv1enc: favor version 3 over 2 unless -strict -2 is set

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