nuv: check ff_rtjpeg_decode_frame_yuv420 return value

CC: libav-stable@libav.org
(cherry picked from commit 85ac12587bfef970d0e0e4abc292df346daf8478)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Conflicts:
	libavcodec/nuv.c
dv: Add a guard to not overread the ppcm array

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 7ee191cab0dc44700f26c5784e2adeb6a779651b)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Conflicts:
	libavformat/dv.c
lavf: fix the comparison in an overflow check

CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
(cherry picked from commit 26f027fba1c5ab482fa2488fbe0fa36c8bb33b69)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Prepare for 9.9 RELEASE

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Update Changelog

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
avformat/matroskaenc: remove bogus prores tag

Fixes: ffmpeg -i input -c:v prores output.mkv

Signed-off-by: Paul B Mahol <onemda@gmail.com>
(cherry picked from commit 14851ca5f5a3af140085e82589e28e06c7cdefdc)

Conflicts:
	libavformat/matroskaenc.c
Merge remote-tracking branch 'qatar/release/9' into release/1.1

* qatar/release/9:
  Update Changelog
  Prepare for 9.9 RELEASE
  lavf: fix the comparison in an overflow check
  dv: Add a guard to not overread the ppcm array
  nuv: check ff_rtjpeg_decode_frame_yuv420 return value

Conflicts:
	Changelog
	RELEASE
	libavformat/utils.c

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