indeo: Refactor ff_ivi_dec_huff_desc

Spare an indentation level.

(cherry picked from commit f6f36ca8ca1b2526d3abff7d7c627322d3bce912)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
indeo: Refactor ff_ivi_init_tiles and ivi_decode_blocks

Spin large and mostly self contained blocks into stand alone
functions.

(cherry picked from commit 62256010e9bc8879e2bf7f3b94af8ff85e239082)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
indeo: Cosmetic formatting

Trim some overly long lines.

(cherry picked from commit 6dfacd7ab126aea1392949d1aa10fdc3d3eeb911)

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

Conflicts:
	libavcodec/ivi_common.c
indeo: reject negative array indexes

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

(cherry picked from commit 6a10142faa1cca8ba2bfe51b970754f62d60f320)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
indeo: Bound-check before applying transform

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit dc79685195a45c9b8b17d7b93d118e0aefa45462)

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

Conflicts:
	libavcodec/ivi_common.c
indeo: Bound-check before applying motion compensation

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 25a6666f6c07c6ac8449a63d7fbce0dfd29c54cd)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
indeo: Sanitize ff_ivi_init_planes fail paths

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 28dda8a691f1c723a4a9365ab85f9625f1330096)

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
indeo: Do not reference mismatched tiles

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit f9e5261cab067be7278f73d515bc9b601eb56202)

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