Unbreaks gif image2 muxer.

Based on patch by Bjorn Roche.

Fixes #6813.

Now "-c copy" works.
Update FATE files.

Demuxer only split file into packets, no data is trimmed.
Encoder & muxer currently expect completely another format
where muxer writes stuff like disposal method which should
be really encoder job.
With this patch muxer only modifies delay between two packets.
Codec copy need to have same behavior between demuxer and
muxer to work correctly.

Fixes #6640.

Fixes #4140.

Fixes #5700.

It is unsigned at least on arm, fixes the following warnings:
libavfilter/vf_signalstats.c:833:21: warning: taking the absolute value of unsigned type 'unsigned int' has no effect
            dify += abs(yuv - AV_RN16(prev->data[0] + pw + i * 2));

The issue is that the afq still has samples as on init it counts
the overlap used as a delay to adjust the PTS it generates, hence
we can't rely on it right after init.
So just check to see if any frames have been encoded. frame_number
can't be anything but 0 right after init and can only be set by lavc.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

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

./ffmpeg_g -f rawvideo -pix_fmt rgb24 -s hd1080 -i /dev/zero -pix_fmt yuv420p9le \
-f null -vframes 100 -v error -nostats -

Speedups:
yuv2plane1_9BE_vsx	11.2042
yuv2plane1_9LE_vsx	11.156
yuv2plane1_10BE_vsx	9.89428
yuv2plane1_10LE_vsx	10.3637
yuv2plane1_12BE_vsx	9.71923
yuv2plane1_12LE_vsx	11.0404
yuv2plane1_14BE_vsx	10.1763
yuv2plane1_14LE_vsx	11.2728

Fate passes, each format tested with an image to video conversion.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Lou Logan <lou@lrcd.com>

In system header /usr/include/sys/mstsave.h, aix defines NUMBER_OF_FRAMES,
causing redefinition warnings.

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

Prevent test failure with builds that set a suffix and/or
extension for the ffprobe binary

this section has been moved into the CONFIG_NETWORK block, since it only
affects network enabled builds.

sys/socket.h (with WIN32 guard) is needed to check if the SHUT_xxx macro exists.

Anyways the intended behaviour was to disable SIDX atom.

Option name is dvbuffer.
Signed-off-by: Lou Logan <lou@lrcd.com>

Signed-off-by: Carl Hetherington <cth@carlh.net>

Fixes build with new Android toolchain.

Instead add the character to the snprintf above as suggested by Mark.

Silences a warning:
libavformat/matroskadec.c: In function 'webm_dash_manifest_cues':
libavformat/matroskadec.c:3947:13: warning: 'strncat' specified bound 1 equals source length [-Wstringop-overflow=]
             strncat(buf, ",", 1);
             ^~~~~~~~~~~~~~~~~~~~

The max size of uint8_t subset is 223 not 220.

Fixes ticket #6234.

Fixes #6874.

before this change, scale_vaapi hard coding the scaling mode, add a
new option "mode" to setting the scaling mode, it can be use to change
scaling algorithm for performance/quality trade off.

Note: VA_FILTER_SCALING_NL_ANAMORPHIC(nolinear ananorphic scaling
algorithm) doesn't support by i965/iHD driver now, add this just for
completeness.
Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: Jun Zhao <mypopydev@gmail.com>

Useful for long duration runs with network output
Reviewed-by: Steven Liu <lq@chinaffmpeg.org>

This patch fixes the segmentation fault issues due to
unhandled errors from ff_http_do_new_request function.
Reviewed-by: Steven Liu <lq@chinaffmpeg.org>

Fix the (m)jpeg encoding regression issue as decription in tikect #7593,
due to bs->FrameType is not set in such case in
MSDK (https://github.com/Intel-Media-SDK/MediaSDK/issues/970).
(And assert on a value coming from an external library is not proper.)

Add default type check for bs->FrameType, and return invalid data error in function
ff_qsv_encode to avoid using uninitialized value.
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: Zhong Li <zhong.li@intel.com>

Silences a warning with clang:
libavcodec/cbs_vp9_syntax_template.c:220:17: warning: implicit conversion from 'int' to 'int8_t' (aka 'signed char')
      changes value from 255 to -1

Silences a warning:
libavcodec/decode.c:1378:13: warning: variable 'ret' is used uninitialized whenever 'if' condition is true

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