dv: Drop a spurious check

The buffer is always valid.

Bug-Id: CID 700682
on2avc: Fix out of array access

CC: libav-stable@libav.org
Bug-Id: CID 1206648
Merge commit '74d7db586a2e9aeb107e357739c7e4dde0b6991c'

* commit '74d7db586a2e9aeb107e357739c7e4dde0b6991c':
  dv: Drop a spurious check

Conflicts:
	libavcodec/dvdec.c

See: 5307fa00a45b50897af3d5070e936fcaa82ae19e
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '2fa6d21124bd2fc0b186290f5313179263bfcfb7'

* commit '2fa6d21124bd2fc0b186290f5313179263bfcfb7':
  on2avc: Fix out of array access

See: ce6a1ff2a124b3b0e8530bca1b6eed5a368feb5a
Merged-by: Michael Niedermayer <michaelni@gmx.at>
lavfi/xbr: remove relicensing notice from copyright header

The log is good enough for tracking those changes.
avfilter/xbr: do not pass unchanging r2y to macros
avfilter/xbr: localize some filtering variables
avfilter/xbr: avoid unecessary macro redirections
avfilter/xbr: use different macro names for each dimension
avfilter/xbr: simplify width overread checks
avfilter/xbr: mark source pointers as const
avfilter/xbr: refactor the 21 pixels definition into a macro
avfilter/xbr: refactor src/dst pointers definitions into a macro
avfilter/xbr: misc cleanup in FILT[234] macros
avfilter/xbr: simplify left/up conditions
avfilter/xbr: misc style fixes
avfilter/xbr: make xbr[234]x a bit more consistent
avfilter/xbr: consistent copyright header
avfilter/xbr: remove FATE test entry from @todo

See 57688aecbd720f4b02acc65b5006b14b7dd6a9f4
avfilter/xbr: use function pointers for xbr[234]x