This commit simply moves the TNS tables to a more appropriate
aactab.h since then they can be accessed by both the decoder
and encoder.

The encoder _shouldn't_ normally need the tables since the
specs describe a specific quantization process, but the exact
reason for this can be seen in the TNS commit following.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

At least for vdpau, the hwaccel init code tries to check the video
profile and ensure that there is a matching vdpau profile available.

If it can't find a match, it will fail to initialise.

In the case of wmv3/vc1, I observed initialisation to fail all the
time. It turns out that this is due to the hwaccel being initialised
very early in the codec init, before the profile has been extracted
and set.

Conceptually, it's a simple fix to reorder the init code, but it gets
messy really fast because ff_get_format(), which is what implicitly
trigger hwaccel init, is called multiple times through various shared
init calls from h263, etc. It's incredibly hard to prove to my own
satisfaction that it's safe to move the vc1 specific init code
ahead of this generic code, but all the vc1 fate tests pass, and I've
visually inspected a couple of samples and things seem correct.
Signed-off-by: Philip Langdale <philipl@overt.org>

This prevents breaking existing command lines in case the "ab" default is removed from libavcodec
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This is shorter and consistent across filters.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

The amv one probably looks suspicious, but since it's an intra-only
codec, I couldn't possibly imagine what it would use the edge for,
and the vsynth fate result doesn't change, so it's probably OK.

Signed-off-by: Philip Langdale <philipl@overt.org>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>

This can fail as seen on fate and the usefulness of the suggestion is limited.

The current algorithm is just "try all the combinations, and pick the best".
It's not very fast either, probably due to a lot of copying, but will do for
an initial implementation.
Signed-off-by: Donny Yang <work@kota.moe>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes segfault
Fixes Ticket4809
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Better message that ffplay is not going to be built by printing out what
will be built.

Based on a patch by Moritz Barsnick.
Signed-off-by: rogerdpack <rogerpack2005@gmail.com>
Reviewed-by: Ganesh Ajjanagadde <gajjanag@mit.edu>
Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Fixes Ticket4802
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Assert on `avctx->codec->encode2` to avoid a SEGFAULT on the subsequent
function call.

avcodec_encode_video2() uses a similar assertion.
Calling the wrong function on a stream is a serious inconsistency
which could at other places be potentially dangerous and exploitable,
it is thus safer to stop execution and not continue with such
inconsistency after returning an error.

Commit-message-extended-by commiter
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>

The wiki, Ticket1464, and Ticket3970 warn about the usage of GCC 4.2.
This fixes Ticket3970.
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit 'e176639b':
  webm: Explicitly select libvpx, libopus and libvorbis encoders
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '413d4e54':
  nvenc: Properly free the fifos

Not merged, ffmpeg's nvenc doesn't use these fifos.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '2157df42':
  hlsenc: Support outputting specific versions

Not merged, the version is auto-selected in ffmpeg based on enabled features.
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'd68705c9':
  dnxhddata: Add tables for missing DNx100 profiles
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'a4615572':
  dnxhddata: Merge a few duplicated RUN tables
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'efbfb1ad':
  dnxhddata: Group together RUN-related tables
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '403ea4ac':
  dnxhddata: Merge a few duplicated DC tables
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '5e129ed6':
  dnxhddata: Group together DC-related tables
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'd3ae4c65':
  dnxhddata: List the reused tables in a comment
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'fdd02188':
  dnxhddata: Keep a single CID in the table names
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

Fixes infinite loop and segfault in ogg_buffer_data()
Fixes Ticket4806
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes ticket #4747.

Fixes a regression since a8ab64d2 reported by Rens Dijkshoorn, rens offlinemedia nl.