avconv: use current syntax for the scale filter
af_asyncts: fix offset calculation

delta is in samples, not bytes. Also the sample format is not guaranteed
to be planar.

CC:libav-stable@libav.org
x86: sbrdsp: implement SSE2 qmf_pre_shuffle

From 253 to 51 cycles on Arrandale and Win64.
44 cycles on SandyBridge.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
indeo3: avoid writes without necessary alignment in copy_cell()

Cells starting at a position aligned to 8 pixels but wider than
4 blocks are copied with 3 blocks per loop. This creates problems on the
next loop iterations since the routine copying 2 blocks requires the
same alignment on some architectures like ARM NEON.
Merge commit '72fbc9685c08baae7ab9996642707eaab873b6f1'

* commit '72fbc9685c08baae7ab9996642707eaab873b6f1':
  avconv: use current syntax for the scale filter

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '16a4a18db089af8c432f1cdec62155000585b72c'

* commit '16a4a18db089af8c432f1cdec62155000585b72c':
  af_asyncts: fix offset calculation

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '2c299d4165cd9653153e12270971c2368551b79e'

* commit '2c299d4165cd9653153e12270971c2368551b79e':
  x86: sbrdsp: implement SSE2 qmf_pre_shuffle

Conflicts:
	libavcodec/x86/sbrdsp.asm
	libavcodec/x86/sbrdsp_init.c

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

* qatar/master:
  indeo3: avoid writes without necessary alignment in copy_cell()

Merged-by: Michael Niedermayer <michaelni@gmx.at>
lavfi/curves: avoid ctx pointer indirection.
doc/filters: sort audio filters by name
doc/filters: remove duplicated abuffer docs