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n6.1.6
ffmpeg/libswscale
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Niklas Haas 2a1d9c080f swscale/alphablend: don't overread alpha plane on subsampled odd size 
This function overreads the input plane for odd dimensions, because the
chroma plane is always rounded up, which means (xy << subsample) + 1 exceeds
the actual alpha plane size.

To verify:
  valgrind ffmpeg -pix_fmt yuva420p -f lavfi -i color -vf \
  "scale=1x1,format=yuva420p,scale=alphablend=uniform_color,format=yuv420p \
  -vframes 1 -f null -

Fixes: https://trac.ffmpeg.org/ticket/11692
(cherry picked from commit b7946098b1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-06-20 17:42:28 +02:00
..
aarch64
all: apply linter fixes
2025-12-03 20:27:24 +01:00
arm
sws: rename SwsContext.swscale to convert_unscaled
2021-07-03 15:57:53 +02:00
loongarch
swscale: [loongarch] Fix checkasm-sw_yuv2rgb failure.
2024-08-02 00:54:08 +02:00
ppc
swscale/ppc: fix ASAN stack-buffer-overflow in yuv2planeX
2026-06-15 05:27:03 +02:00
riscv
riscv: test for assembler support
2024-12-07 02:37:17 -05:00
tests
swscale: introduce isSwappedChroma
2022-01-04 19:39:22 -06:00
x86
swscale/x86/rgb_2_rgb: fix uyvytoyuv422 overwrite on odd width
2026-06-17 03:44:45 +02:00
alphablend.c
swscale/alphablend: don't overread alpha plane on subsampled odd size
2026-06-20 17:42:28 +02:00
bayer_template.c
swscale: do not drop half of bits from 16bit bayer formats
2020-08-08 12:03:42 +02:00
gamma.c
all: apply linter fixes
2025-12-03 20:27:24 +01:00
half2float.c
swscale/input: add rgbaf16 input support
2022-08-19 22:09:36 +02:00
hscale_fast_bilinear.c
sws: Move fast bilinear C code into seperate file
2014-07-19 05:36:26 +02:00
hscale.c
swscale: add opaque parameter to input functions
2022-08-19 22:09:36 +02:00
input.c
swscale: add GBRAP14 format support
2023-09-28 19:37:58 +02:00
libswscale.v
build: Change structure of the linker version script templates
2016-05-29 16:43:11 +02:00
log2_tab.c
lsws: duplicate ff_log2_tab
2014-08-12 20:52:21 +02:00
Makefile
swscale/input: add rgbaf16 input support
2022-08-19 22:09:36 +02:00
options.c
Remove unnecessary libavutil/(avutil|common|internal).h inclusions
2022-02-24 12:56:49 +01:00
output.c
swscale/output: fix integer overflows in chroma in yuv2rgba64_X_c_template()
2026-05-04 17:13:28 +02:00
rgb2rgb_template.c
swscale/rgb2rgb_template: use unsigned for <<24
2026-06-14 20:00:36 +02:00
rgb2rgb.c
sws/rgb2rgb: RISC-V V shuffle_bytes_xxxx functions
2022-09-30 07:24:09 +02:00
rgb2rgb.h
sws/rgb2rgb: RISC-V V shuffle_bytes_xxxx functions
2022-09-30 07:24:09 +02:00
slice.c
swscale/slice: clear allocated memory in alloc_lines()
2025-06-11 12:15:52 +02:00
swscale_internal.h
swscale/la: Optimize hscale functions with lasx.
2022-09-10 22:56:38 +02:00
swscale_unscaled.c
swscale/swscale_unscaled: adjust last line copy
2026-05-04 17:13:40 +02:00
swscale.c
swscale/swscale: Use unsigned operation to avoid undefined behavior
2025-06-11 12:15:39 +02:00
swscale.h
swscale: document some missing arguments
2022-10-17 09:56:47 +02:00
swscaleres.rc
…
utils.c
swscale/utils: Check *Inc
2026-05-04 17:13:27 +02:00
version_major.h
Bump major versions of all libraries
2023-02-09 15:35:14 +01:00
version.c
lib*/version: Move library version functions into files of their own
2022-05-10 06:49:32 +02:00
version.h
Bump versions prior to 6.1
2023-10-29 16:19:39 +01:00
vscale.c
all: apply linter fixes
2025-12-03 20:27:24 +01:00
yuv2rgb.c
swscale/yuv2rgb: Use 64bit for brightness computation
2024-07-24 16:52:08 +02:00