fic: Properly handle skip frames

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
(cherry picked from commit f87a6e500bcdaede22a123b81a2a46779cf7b71a)
rv10: Forward error from rv10_decode_packet

Signed-off-by: Diego Biurrun <diego@biurrun.de>
(cherry picked from commit b4d372e091f6b30758db2a43a5a9fe2510ec2b13)
matroskaenc: allow override of "writing application" tag

Signed-off-by: Tim Walker <tdskywalker@gmail.com>

CC: libav-stable@libav.org
(cherry picked from commit 0092c1dd8dac2d9e185b58503b447a0d3fb5230d)
movenc: allow override of "writing application" tag

Signed-off-by: Tim Walker <tdskywalker@gmail.com>

CC: libav-stable@libav.org
(cherry picked from commit 565e0c6d866ce08d4b06427456d3d1f4fd856e9c)
build: Use pkg-config for openjpeg

Bug-Id: 387
CC: libav-stable@libav.org
(cherry picked from commit 0e0cefb22216a4b6684a30a50cb5973400dc59f2)
arm: vp3: remove incorrect const in ff_vp3_idct_dc_add_neon declaration

Was missed in aeaf268e52fc11c1f64914a319e0edddf1346d6a when integrating
clear_blocks into the idct.

(cherry picked from commit 4506a854a4d846692ba71daeeff661dc214c8fa2)
float_dsp: fix errors in documentation

(cherry picked from commit 74cc901905741ca3d9e8364f42239341f4f173c4)