Signed-off-by: Anton Khirnov <anton@khirnov.net>

Similar gains as the ssse3 version once again

Additional improvements by Clément Bœsch <u@pkh.me>.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Similar gains in performance as the SSSE3 version

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

The randomize_buffer() implementation assures that "most of the time",
we'll do a good mix of wide16/wide8/hev/regular/no filters for complete
code coverage. However, this is not mathematically assured because that
would make the code either much more complex, or much less random.

Some fixes and improvements by Rodger Combs <rodger.combs@gmail.com>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes ffvp9_fails_where_libvpx.succeeds.webm.

Bug-Id: ffmpeg/3849.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

This isn't a "version script" in the usual sense, since it doesn't set symbol
versions directly. Instead, the version for the whole .dylib is set in the
linker flags, and we generate a list of symbol patterns to export. This allows
us to keep our local symbols (e.g. ff_*) local on the platform.

The Darwin linker's exported_symbols_list format is a bit different than the
one used by the GNU linker. It doesn't handle local symbols at all, since when
a list is provided, all unlisted symbols are local by default; thus, we remove
local sections. It doesn't handle per-version sections, so we remove the
headers and brackets. It expects symbols to be prefixed with an underscore.
It errors if a listed symbol with no wildcards is not present in the output,
so we append an asterisk to any symbol that doesn't already end in one.

before patch:

localhost:osx liuqi$ tree 20160926/
20160926/
└── file-20160909
    └── 26
        └── 16
            └── 15
                ├── 46
                │   ├── 13.ts
                │   ├── 25.ts
                │   ├── 36.ts
                │   ├── 45.ts
                │   └── 54.ts
                └── 47
                    ├── 04.ts
                    ├── 14.ts
                    ├── 24.ts
                    └── 35.ts

6 directories, 9 files
localhost:osx liuqi$ cat out.m3u8
 #EXTM3U
 #EXT-X-VERSION:3
 #EXT-X-TARGETDURATION:12
 #EXT-X-MEDIA-SEQUENCE:0
 #EXTINF:11.360000,
 13.ts
 #EXTINF:10.800000,
 25.ts
 #EXTINF:9.120000,
 36.ts
 #EXTINF:8.760000,
 45.ts
 #EXTINF:10.200000,
 54.ts
 #EXTINF:10.720000,
 04.ts
 #EXTINF:9.600000,
 14.ts
 #EXTINF:10.600000,
 24.ts
 #EXTINF:8.760000,
 35.ts
 #EXT-X-ENDLIST

after patch:

localhost:osx liuqi$ tree 20160926/
20160926/
└── file-20160909
    └── 26
        └── 16
            └── 15
                ├── 46
                │   ├── 13.ts
                │   ├── 25.ts
                │   ├── 36.ts
                │   ├── 45.ts
                │   └── 54.ts
                └── 47
                    ├── 04.ts
                    ├── 14.ts
                    ├── 24.ts
                    └── 35.ts

6 directories, 9 files
localhost:osx liuqi$ cat out.m3u8
 #EXTM3U
 #EXT-X-VERSION:3
 #EXT-X-TARGETDURATION:12
 #EXT-X-MEDIA-SEQUENCE:0
 #EXTINF:11.360000,
 20160926/file-20160909/26/16/15/46/13.ts
 #EXTINF:10.800000,
 20160926/file-20160909/26/16/15/46/25.ts
 #EXTINF:9.120000,
 20160926/file-20160909/26/16/15/46/36.ts
 #EXTINF:8.760000,
 20160926/file-20160909/26/16/15/46/45.ts
 #EXTINF:10.200000,
 20160926/file-20160909/26/16/15/46/54.ts
 #EXTINF:10.720000,
 20160926/file-20160909/26/16/15/47/04.ts
 #EXTINF:9.600000,
 20160926/file-20160909/26/16/15/47/14.ts
 #EXTINF:10.600000,
 20160926/file-20160909/26/16/15/47/24.ts
 #EXTINF:8.760000,
 20160926/file-20160909/26/16/15/47/35.ts
 #EXT-X-ENDLIST

Signed-off-by: Steven Liu <lingjiujianke@gmail.com>

Signed-off-by: Stephan Holljes <klaxa1337@googlemail.com>

Signed-off-by: Marton Balint <cus@passwd.hu>

Reviewed-by: wm4 <nfxjfg@googlemail.com>
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Adriano Pallavicino <adriano.pallavicino@gmail.com>
Signed-off-by: Josh de Kock <josh@itanimul.li>

Fixes failure with mmxext or 3dnow cpuflags enabled but ssse3 disabled

Signed-off-by: James Almer <jamrial@gmail.com>

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

Full width text is really difficult to read, this makes it more
more legible on larger (widescreen) screens. It also means we aren't
inventing our own container instead of using the bootstrap one.

Signed-off-by: Josh de Kock <josh@itanimul.li>

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Palette format is always in RGBA.

This simplifies the code a bit, does not change output data in any way.

This is required for 10-bit surfaces.

A decoder may need this to be set correctly to output frames in the
right order.

This was not observed earlier because the only syntax element which
it normally misses with the current setup is slice_qp_delta, but that
is always going to be zero (in IDR frames QP isn't varied on the
slice) which will always exp-golomb code as a single 1 bit.  The
immediately following part is the byte alignment, which is always a 1
bit followed by 0s which are ignored, so as long as the bitstream is
never aligned at that point we will never notice because the only
difference is that an ignored bit is a 1 instead of a 0.

This was always too late; several fields related to it have been incorrectly
zero since the encoder was added.

It has been replaced by C11 stdatomic.h and is now unused.

Current code uses a plain int in a racy way, which is UB.

Adapted from the code by Rémi Denis-Courmont from VLC

Adapted from the code by Rémi Denis-Courmont from VLC

Adapted from the code by Rémi Denis-Courmont from VLC

Adapted from the code by Rémi Denis-Courmont from VLC

Adapted from the code by Rémi Denis-Courmont from VLC

Since this is a C11 feature, it requires -std=c11.

Not actually used for anything yet, that will be added in the following
commits.

Some function definitions are missing without it,
for example sigaction.

Fixes ticket #5868

Confirmed to work by checkasm.

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