flv: Improve log messages

Messages should start with a capital letter and possibly end with a "."
if they are statements.
flv: Warn only once

No point in sending the message multiple time.
flv: Do not mangle dts values for negative cts

Some applications really mean to send negative pts.
Never write 0 as maximum bitrate for asf files.

WMP refuses to play such streams.
Fix libpostproc compilation with !HAVE_6REGS.
Fix vf_eq.c and vf_eq2.c compilation with !HAVE_6REGS.
Use correct msvc type specifiers for ptrdiff_t and size_t.

The Windows runtime aborts if it finds %t or %z.
Fixes ticket #3472.

Reviewed-by: Ronald Bultje
Enable muxing ac-3 in caf.

The files play fine with QuickTime.
lavu: add CHK_OFFS as AV_CHECK_OFFSET to check struct member offsets
lavr: define ResampleContext in resample.h

Required for arch optimized resampling.
aarch64: NEON optimized FIR audio resampling

Optimized for the default filter length 16.

30% faster opus silk decoding.
Merge commit '374fdc8c071dcd96422378b0a1a0d453336d8a01'

* commit '374fdc8c071dcd96422378b0a1a0d453336d8a01':
  flv: Improve log messages

Conflicts:
	libavformat/flvdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '5d983fdbca5570a1545a892583a372cfb3fffe92'

* commit '5d983fdbca5570a1545a892583a372cfb3fffe92':
  flv: Warn only once

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '152b797cd687e96a582a1cb908dddf3d330d7637'

* commit '152b797cd687e96a582a1cb908dddf3d330d7637':
  flv: Do not mangle dts values for negative cts

Merged-by: Michael Niedermayer <michaelni@gmx.at>
fate: Add fic-in-avi test

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
fate: Add fic-in-avi test

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
x86/mpegaudiodsp: define apply_window_mp3 as SSE

None of the handwritten asm in this function seems to be SSE2

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'a88e1d1c598e641eecd5d43730211d91c82787c6'

* commit 'a88e1d1c598e641eecd5d43730211d91c82787c6':
  lavu: add CHK_OFFS as AV_CHECK_OFFSET to check struct member offsets

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'cae8df78759c2e69257f7fe58842f34c0d98a7ec'

* commit 'cae8df78759c2e69257f7fe58842f34c0d98a7ec':
  lavr: define ResampleContext in resample.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'a24a252709dd38f12aa4929ce4981f87091a5113'

* commit 'a24a252709dd38f12aa4929ce4981f87091a5113':
  aarch64: NEON optimized FIR audio resampling

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