If we fill with black then the generated palette will have one color more
than what the user requested. This also resulted in unwanted black specks in
the output of paletteuse, especially when generating small palettes.

Why did this not break compilation?

Correct the comment

Signed-off-by: Jun Zhao <mypopydev@gmail.com>

Fix build warning like "warning: ISO C90 forbids mixed declarations
and code" after adjust the location for malloc fail check.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Jun Zhao <mypopydev@gmail.com>

Need to check malloc fail before using it, so adjust the location
in the code.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Jun Zhao <mypopydev@gmail.com>

Remove the pdiff_lut_scale in nlmeans and increase weight_lut table size
from 2^9 to 500000, this change will avoid using pdiff_lut_scale in
nlmeans_slice() for weight_lut table search, improving the performance
by about 12%. (in 1080P size picture case).

Use the profiling command like:

perf stat -a -d -r 5 ./ffmpeg -i input -an -vf nlmeans=s=30 -vframes 10 \
-f null /dev/null

without this change:
when s=1.0(default value) 63s
     s=30.0               72s

after this change:
     s=1.0(default value) 56s
     s=30.0               63s

Reviewed-by: Carl Eugen Hoyos <ceffmpeg@gmail.com>
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
Signed-off-by: Clément Bœsch <u@pkh.me>

The timestamp of the changed input frame as well as its relevant
properties can be examined by the user. Only applicable when
reinit_filter is disabled on the input stream.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: Fuwei Tang <fuweix.tang@intel.com>
Signed-off-by: Zhong Li <zhong.li@intel.com>

New fade curve value 'nofade' passes audio samples as-is.
Primarily useful in carrying out acrossfade without fades.

Swap width and height when do clock/cclock rotation
Add reversal/hflip/vflip options

ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128
-hwaccel_output_format vaapi -i input.264 -vf "transpose_vaapi=clock_flip"
-c:v h264_vaapi output.h264

Signed-off-by: Zachary Zhou <zachary.zhou@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: James Almer <jamrial@gmail.com>

At present, 16-bit auto-scaled format results in incorrect alpha
extraction.

Make into account patch size.

Instead denoise from start, assumming missing samples are silence.

Silences a warning when only aselect was enabled:
libavfilter/f_select.c:421:12: warning: 'query_formats' defined but not used

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

Minimal value allowed by our FFT is 16 thus min partition size is 8.

Fixes compilation with old yasm versions.

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

fcmul_add_c: 1228.8
fcmul_add_sse3: 334.3
fcmul_add_avx: 186.3

Tested on a Core i5 4460 @ 3.2GHz

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

ff_fcmul_add_sse3() is now identical to the C version.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Frame properties were not copied, so e.g. PTS was not set for the last frame.

Regression since ef3babb2c7.

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

Signed-off-by: Zachary Zhou <zachary.zhou@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>