wm4 463b81de2b imgutils: add function to clear an image to black ... Black isn't always just memset(ptr, 0, size). Limited YUV in particular requires relatively non-obvious values, and filling a frame with repeating 0 bytes is disallowed in some contexts. With component sizes larger than 8 or packed YUV, this can become relatively complicated. So having a generic function for this seems helpful. In order to handle the complex cases in a generic way without destroying performance, this code attempts to compute a black pixel, and then uses that value to clear the image data quickly by using a function like memset. Common cases like yuv410p10 or rgba can't be handled with a simple memset, so there is some code to fill memory with 2/4/8 byte patterns. For the remaining cases, a generic slow fallback is used. Signed-off-by: Anton Khirnov <anton@khirnov.net> Merged from Libav commit 45df7adc1d.		2017-08-08 13:37:37 +02:00
..
aarch64
arm	Merge commit '6a1ea4ec932f4fc9fdc00ec51ee070b298ddb35f'	2017-04-04 16:04:29 -03:00
avr32
bfin
mips	libavcodec/mips: Optimize avc idct 4x4 for msa	2017-07-25 22:04:34 +02:00
ppc	Merge commit '05a603a94e4b3eeefa5e18ae653a848001461e89'	2017-04-26 16:27:24 +02:00
sh4
tests	fate: update pixfmt_best test to check for endianness	2017-07-27 08:53:37 +02:00
tomi
x86	x86inc: don't use read-only data sections on COFF targets	2017-06-27 12:48:04 -03:00
.gitignore
adler32.c
adler32.h
aes_ctr.c
aes_ctr.h
aes_internal.h
aes.c
aes.h
atomic_gcc.h
atomic_suncc.h
atomic_win32.h
atomic.c
atomic.h
attributes.h
audio_fifo.c
audio_fifo.h
avassert.h
avstring.c	avutil/avstring: improve av_strreplace implement	2017-04-11 10:54:35 +08:00
avstring.h	avutil/avstring: improve av_strreplace implement	2017-04-11 10:54:35 +08:00
avutil.h
avutilres.rc
base64.c
base64.h
blowfish.c
blowfish.h
bprint.c
bprint.h
bswap.h
buffer_internal.h
buffer.c
buffer.h
camellia.c
camellia.h
cast5.c
cast5.h
channel_layout.c
channel_layout.h
color_utils.c
color_utils.h
colorspace.h
common.h
cpu_internal.h
cpu.c	lavu/cpu: disable MMX warning on non x86 platforms	2017-06-29 18:00:58 +02:00
cpu.h
crc.c
crc.h
des.c
des.h
dict.c
dict.h
display.c
display.h	Merge commit '075acbb6ff5740b2eea1bb7dd3afbc8e66e2ebf8'	2017-04-13 17:31:15 -03:00
downmix_info.c
downmix_info.h
dynarray.h
error.c
error.h
eval.c	libavutil/eval: Add round function to expression parser	2017-06-06 18:31:47 +02:00
eval.h
ffmath.h
fifo.c
fifo.h
file_open.c
file.c
file.h
fixed_dsp.c
fixed_dsp.h
float_dsp.c	avutil/float_dsp: add vector_dmac_scalar()	2017-04-10 12:04:14 +02:00
float_dsp.h	avutil/float_dsp: add vector_dmac_scalar()	2017-04-10 12:04:14 +02:00
frame.c	lavc, lavu: move frame cropping to a convenience function	2017-08-08 13:35:09 +02:00
frame.h	lavc, lavu: move frame cropping to a convenience function	2017-08-08 13:35:09 +02:00
hash.c
hash.h
hmac.c	Merge commit '00b6a765430e5c5cacf0bd1be8b318d631cd4e14'	2017-05-05 13:27:03 +02:00
hmac.h
hwcontext_cuda_internal.h
hwcontext_cuda.c	hwcontext_cuda : Support YUV444P16 format	2017-08-03 15:25:35 -07:00
hwcontext_cuda.h
hwcontext_d3d11va.c	hwcontext_d3d11va: use correct license header	2017-06-28 00:19:55 +02:00
hwcontext_d3d11va.h	hwcontext_d3d11va: use correct license header	2017-06-28 00:19:55 +02:00
hwcontext_dxva2.c	avutil/hwcontext_dxva2: Don't improperly free IDirect3DSurface9 objects	2017-05-16 21:45:52 +01:00
hwcontext_dxva2.h	dxva: add support for new dxva2 and d3d11 hwaccel APIs	2017-06-27 18:05:02 +02:00
hwcontext_internal.h	lavu: add new D3D11 pixfmt and hwcontext	2017-06-27 18:05:02 +02:00
hwcontext_qsv.c	hwcontext_qsv: Implement mapping frames to the child device type	2017-06-14 22:27:07 +01:00
hwcontext_qsv.h
hwcontext_vaapi.c	hwcontext_vaapi: Try to support the VDPAU wrapper	2017-06-14 22:23:43 +01:00
hwcontext_vaapi.h	hwcontext_vaapi: Try to support the VDPAU wrapper	2017-06-14 22:23:43 +01:00
hwcontext_vdpau.c
hwcontext_vdpau.h
hwcontext_videotoolbox.c	videotoolbox: add hwcontext support	2017-05-15 11:30:36 +02:00
hwcontext_videotoolbox.h	hwcontext_videotoolbox: fix fate-source	2017-05-15 18:50:04 +02:00
hwcontext.c	lavu: add new D3D11 pixfmt and hwcontext	2017-06-27 18:05:02 +02:00
hwcontext.h	lavu: add new D3D11 pixfmt and hwcontext	2017-06-27 18:05:02 +02:00
imgutils_internal.h
imgutils.c	imgutils: add function to clear an image to black	2017-08-08 13:37:37 +02:00
imgutils.h	imgutils: add function to clear an image to black	2017-08-08 13:37:37 +02:00
integer.c
integer.h
internal.h	avutil/internal: Do not enable CHECKED with DEBUG	2017-04-11 01:05:05 +02:00
intfloat.h
intmath.c
intmath.h
intreadwrite.h
lfg.c
lfg.h
libavutil.v
libm.h
lls.c
lls.h
log2_tab.c
log.c	Fix all -Wformat warnings raised by DJGPP	2017-03-29 14:49:29 +02:00
log.h
lzo.c
lzo.h
macros.h
Makefile	avutil: merge slice threading implementation from avcodec and avfilter	2017-07-19 15:50:07 +07:00
mastering_display_metadata.c	lavu: add support for Content Light Level side metadata	2017-04-06 11:26:25 -03:00
mastering_display_metadata.h	lavu: add support for Content Light Level side metadata	2017-04-06 11:26:25 -03:00
mathematics.c
mathematics.h
md5.c	Merge commit 'e435beb1ea5380a90774dbf51fdc8c941e486551'	2017-05-05 13:04:38 +02:00
md5.h	Merge commit 'e435beb1ea5380a90774dbf51fdc8c941e486551'	2017-05-05 13:04:38 +02:00
mem_internal.h
mem.c
mem.h	lavu/mem: clamp alignment to 16 for DJGPP	2017-03-29 14:49:29 +02:00
motion_vector.h
murmur3.c
murmur3.h
opencl_internal.c
opencl_internal.h
opencl.c
opencl.h
opt.c	Merge commit '67351924fa91dea4339109100a4c0689f006581f'	2017-03-30 10:26:29 +02:00
opt.h
parseutils.c
parseutils.h
pca.c
pca.h
pixdesc.c	libavutil: add GRAY9 pixel format	2017-08-07 13:06:51 +02:00
pixdesc.h
pixelutils.c
pixelutils.h
pixfmt.h	libavutil: add GRAY9 pixel format	2017-08-07 13:06:51 +02:00
qsort.h
random_seed.c
random_seed.h
rational.c
rational.h
rc4.c
rc4.h
replaygain.h
reverse.c
reverse.h
ripemd.c
ripemd.h
samplefmt.c
samplefmt.h
sha512.c	lavu/sha512: update length argument following sha+md5 changes	2017-05-05 13:24:35 +02:00
sha512.h	lavu/sha512: update length argument following sha+md5 changes	2017-05-05 13:24:35 +02:00
sha.c	Merge commit 'e435beb1ea5380a90774dbf51fdc8c941e486551'	2017-05-05 13:04:38 +02:00
sha.h	Merge commit 'e435beb1ea5380a90774dbf51fdc8c941e486551'	2017-05-05 13:04:38 +02:00
slicethread.c	avutil: merge slice threading implementation from avcodec and avfilter	2017-07-19 15:50:07 +07:00
slicethread.h	avutil: merge slice threading implementation from avcodec and avfilter	2017-07-19 15:50:07 +07:00
softfloat_ieee754.h
softfloat_tables.h
softfloat.h	avutil/softfloat: Fix sign error in and improve documentation of av_int2sf()	2017-06-04 23:41:08 +02:00
spherical.c	avutil/spherical: add av_spherical_projection_name()	2017-03-31 13:26:56 -03:00
spherical.h	avutil/spherical: add av_spherical_projection_name()	2017-03-31 13:26:56 -03:00
stereo3d.c
stereo3d.h	Merge commit '075acbb6ff5740b2eea1bb7dd3afbc8e66e2ebf8'	2017-04-13 17:31:15 -03:00
tablegen.h
tea.c
tea.h
thread.h	libavutil/thread.h: Fixed g++ build error when ASSERT_LEVEL is greater than 1	2017-04-22 23:32:41 +02:00
threadmessage.c	avutil/threadmessage: fix error return in case of av_fifo_alloc failure	2017-07-14 02:30:37 +02:00
threadmessage.h
time_internal.h
time.c
time.h
timecode.c	Fix all -Wformat warnings raised by DJGPP	2017-03-29 14:49:29 +02:00
timecode.h	lavu/timecode: Increase AV_TIMECODE_STR_SIZE.	2017-05-05 10:09:12 +02:00
timer.h
timestamp.h
tree.c
tree.h
twofish.c
twofish.h
utils.c
version.h	imgutils: add function to clear an image to black	2017-08-08 13:37:37 +02:00
wchar_filename.h
xga_font_data.c
xga_font_data.h
xtea.c
xtea.h