If p_chain->first is NULL, we should not take the address of first->filter.

Close #7241

We do not want the fallback on external packages here

Close #11434

(Why noone added this?)

Fixes the problem where UNPACK_DIR returned rtmpdump-2 instead
of rtmpdumo-2.3 for rtmpdump-2.3. Only .tar.* archives have two
filetype suffixes, tgz, zip,.. have only one and the second "."
in the filename belongs to the version number which should not be
stripped.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Although we know in the contrib build system the path to pkg-config,
ffmpeg does not always pick it up and dependency resolution will
fail.
Acked-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Uses libgcrypt
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

No code comments: no clue. But mp4 needs clockwise.

Was introduced as workaround for the SQL ML Classes design mess

refs 2f353e18

refs c2c113e3

SteamIndex for Chapters have no stream, then no qlevels

Close #10745

Fix download from Uncacheable Speculative Write Combining (USWC) memory,
e.g. VA surfaces, when the dimensions are odd. In particular, make sure
to get the very last chroma component for each row.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Release MediaCodec only if the codec has been successfully created.
This might avoid some crashes.