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FFmpeg/libswscale

History

Andreas Rheinhardt 2fae000994 swscale/vscale: Increase type strictness ... libswscale/vscale.c makes extensive use of function pointers and in doing so it converts these function pointers to and from a pointer to void. Yet this is actually against the C standard: C90 only guarantees that one can convert a pointer to any incomplete type or object type to void* and back with the result comparing equal to the original which makes pointers to void generic pointers to incomplete or object type. Yet C90 lacks a generic function pointer type. C99 additionally guarantees that a pointer to a function of one type may be converted to a pointer to a function of another type with the result and the original comparing equal when converting back. This makes any function pointer type a generic function pointer type. Yet even this does not make pointers to void generic function pointers. Both GCC and Clang emit warnings for this when in pedantic mode. This commit fixes this by using a union that can hold one member of any of the required function pointer types to store the function pointer. This works even for C90. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>		5 years ago
..
aarch64	swscale: aarch64: Don't clobber callee-saved registers v8-v15	5 years ago
arm	arm: swscale: Only compile the rgb2yuv asm if .dn aliases are supported	7 years ago
ppc	swscale: Fix AltiVec/VSX build with recent GCC	5 years ago
tests	swscale/tests/swscale: Lengthen pixfmt name buffer to 21 bytes	6 years ago
x86	swscale/swscale: remove useless code	5 years ago
Makefile	…
alphablend.c	…
bayer_template.c	…
gamma.c	…
hscale.c	…
hscale_fast_bilinear.c	…
input.c	lsws/input: Do not change transparency range.	5 years ago
libswscale.v	…
log2_tab.c	…
options.c	…
output.c	swscale/output: Fix integer overflow in yuv2rgb_write_full() with out of range input	5 years ago
rgb2rgb.c	swscale/rgb : move shuffle func shuffle_bytes_1230, shuffle_bytes_3012, shuffle_bytes_3210 in order to add SIMD	7 years ago
rgb2rgb.h	swscale/rgb2rgb : cosmetic, move shuffle_bytes func declaration	7 years ago
rgb2rgb_template.c	lsws/rgb2rgb_template: Do not compile unneeded shuffle functions on big-endian.	7 years ago
slice.c	…
swscale.c	swscale/swscale: remove useless code	5 years ago
swscale.h	…
swscale_internal.h	swscale/swscale: remove useless code	5 years ago
swscale_unscaled.c	swscale/swscale_unscaled: add AV_PIX_FMT_GBRAP10 for LE and BE conversion wrapper	5 years ago
swscaleres.rc	…
utils.c	swscale: Add swscale input support for Y210LE	5 years ago
version.h	lsws/input: Do not change transparency range.	5 years ago
vscale.c	swscale/vscale: Increase type strictness	5 years ago
yuv2rgb.c	swscale/yuv2rgb: Fix vertical dither offset with slices	5 years ago