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.
fate: Add fic-in-avi test

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
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>
Merge commit '8de77b665d2a2f1cd560d2183fd4664298b30715'

* commit '8de77b665d2a2f1cd560d2183fd4664298b30715':
  fate: Add fic-in-avi test

Conflicts:
	tests/ref/fate/fic-avi

See: d66de5006bbcfc8dd875b9385ec3552d1f9fcd6b
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Enable muxing ac-3 in caf.
  Use correct msvc type specifiers for ptrdiff_t and size_t.
  Fix vf_eq.c and vf_eq2.c compilation with !HAVE_6REGS.
  Fix libpostproc compilation with !HAVE_6REGS.
  Never write 0 as maximum bitrate for asf files.

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