Timo Rothenpieler 6651a36bd3 avutil/mem: limit alignment to maximum simd align ... FFmpeg has instances of DECLARE_ALIGNED(32, ...) in a lot of structs, which then end up heap-allocated. By declaring any variable in a struct, or tree of structs, to be 32 byte aligned, it allows the compiler to safely assume the entire struct itself is also 32 byte aligned. This might make the compiler emit code which straight up crashes or misbehaves in other ways, and at least in one instances is now documented to actually do (see ticket 10549 on trac). The issue there is that an unrelated variable in SingleChannelElement is declared to have an alignment of 32 bytes. So if the compiler does a copy in decode_cpe() with avx instructions, but ffmpeg is built with --disable-avx, this results in a crash, since the memory is only 16 byte aligned. Mind you, even if the compiler does not emit avx instructions, the code is still invalid and could misbehave. It just happens not to. Declaring any variable in a struct with a 32 byte alignment promises 32 byte alignment of the whole struct to the compiler. This patch limits the maximum alignment to the maximum possible simd alignment according to configure. While not perfect, it at the very least gets rid of a lot of UB, by matching up the maximum DECLARE_ALIGNED value with the alignment of heap allocations done by lavu. Signed-off-by: Paul B Mahol <onemda@gmail.com>		2024-03-01 19:21:12 +01:00
..
aarch64	libavutil/aarch64/cpu.c: HWCAPS requires inline asm support.	2023-11-02 21:03:43 +01:00
arm
avr32
loongarch	avutil/la: Add function performance testing	2023-05-25 21:05:21 +02:00
mips	mips: fix build fail on MIPS R6	2023-03-26 01:46:39 +01:00
ppc	libavutil/ppc/cpu.c: check that AT_HWCAP2 is defined	2023-10-19 20:46:55 +02:00
riscv	lavu/fixed_dsp: R-V V fmul_window_scaled	2023-11-23 18:57:18 +02:00
sh4
tests	avutil/tests/pixelutils: Remove dead code	2024-02-24 15:27:49 +01:00
x86	x86: Remove inline MMX assembly that clobbers the FPU state	2024-02-11 12:27:23 +01:00
.gitignore
adler32.c
adler32.h
aes_ctr.c
aes_ctr.h	avutil/aes_ctr: document some missing arguments	2022-10-17 09:56:47 +02:00
aes_internal.h
aes.c	avutil/aes: Don't use out-of-bounds index	2022-10-24 16:28:14 +02:00
aes.h	avutil/aes: document some missing arguments	2022-10-17 09:56:47 +02:00
ambient_viewing_environment.c	avutil: introduce AVAmbientViewingEnvironment side data	2023-01-13 21:26:13 +02:00
ambient_viewing_environment.h	avutil: introduce AVAmbientViewingEnvironment side data	2023-01-13 21:26:13 +02:00
attributes_internal.h	avutil/attributes_internal: Add visibility pragma	2022-10-10 13:43:59 +02:00
attributes.h
audio_fifo.c	avutil/audio_fifo: Constify some pointees	2023-09-12 09:20:13 +02:00
audio_fifo.h	avutil/audio_fifo: Constify some pointees	2023-09-12 09:20:13 +02:00
avassert.h	lavu/avassert: include config.h	2023-07-12 15:35:37 +02:00
avsscanf.c
avstring.c	avutil/avstring: Remove obsolete version.h inclusion	2023-09-07 00:48:50 +02:00
avstring.h	avutil/avstring: Remove obsolete version.h inclusion	2023-09-07 00:48:50 +02:00
avutil.h	remove GPL-only libpostproc library	2023-12-07 09:41:01 +01:00
avutilres.rc
base64.c
base64.h
blowfish.c
blowfish.h
bprint.c	avutil/bprint: Allow size == 0 in av_bprint_init_for_buffer()	2023-08-10 08:53:38 +02:00
bprint.h	avutil/bprint: Allow size == 0 in av_bprint_init_for_buffer()	2023-08-10 08:53:38 +02:00
bswap.h	lavu/riscv: byte-swap operations	2022-09-13 16:50:43 -03:00
buffer_internal.h
buffer.c
buffer.h
camellia.c
camellia.h	avutil/camellia: Fix doxy @param typo	2022-10-17 09:55:19 +02:00
cast5.c	avutil/cast5: Avoid undefined shift of uint32_t by 32 places	2022-11-11 12:24:23 +01:00
cast5.h
channel_layout.c	avutil/channel_layout: print known layout names in custom layout	2024-02-24 15:27:43 +01:00
channel_layout.h	avutil/channel_layout: add FF_CHANNEL_ORDER_NB	2024-02-24 15:27:42 +01:00
colorspace.h
common.h	avutil/common: Move includes to the beginning of the file	2024-02-24 15:27:49 +01:00
cpu_internal.h	lavu/cpu: detect RISC-V base extensions	2022-09-27 13:19:52 +02:00
cpu.c	all: Don't set AVClass.item_name to its default value	2023-12-22 16:49:25 +01:00
cpu.h	lavu: add/use flag for RISC-V Zba extension	2023-07-19 19:29:35 +03:00
crc.c
crc.h	avutil/crc: Add doxy for missing arguments	2022-10-17 09:56:47 +02:00
csp.c	avutil/{color_utils, csp}: merge color_utils into csp and expose API	2023-02-09 15:35:14 +01:00
csp.h	avutil/{color_utils, csp}: merge color_utils into csp and expose API	2023-02-09 15:35:14 +01:00
cuda_check.h
des.c
des.h	avutil/des: Add doxy for missing arguments	2022-10-17 09:56:47 +02:00
detection_bbox.c
detection_bbox.h	avutil/detection_bbox: Add doxy for missing argument	2022-10-17 09:56:47 +02:00
dict_internal.h
dict.c	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
dict.h	avutil/dict: Improve documentation	2022-11-06 08:26:50 +01:00
display.c
display.h	avutil/display: Add file to doxy group	2022-10-17 09:55:19 +02:00
dovi_meta.c
dovi_meta.h
downmix_info.c
downmix_info.h
dynarray.h
emms.h	avutil/internal: Don't auto-include emms.h	2023-09-04 11:04:45 +02:00
encryption_info.c	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
encryption_info.h
error.c
error.h
eval.c	avutil/eval: Use even better PRNG	2024-02-07 23:44:20 +01:00
eval.h	apply spelling fixes	2023-11-18 19:55:42 +01:00
executor.c	avutil: add thread executor	2023-09-02 02:49:06 +02:00
executor.h	avutil: add thread executor	2023-09-02 02:49:06 +02:00
ffmath.h
fifo.c	avutil/fifo: Constify AVFifo pointees in peek functions	2023-09-12 09:20:49 +02:00
fifo.h	avutil/fifo: Constify AVFifo pointees in peek functions	2023-09-12 09:20:49 +02:00
file_open.c	all: Don't set AVClass.item_name to its default value	2023-12-22 16:49:25 +01:00
file_open.h
file.c	all: Don't set AVClass.item_name to its default value	2023-12-22 16:49:25 +01:00
file.h	avutil/file: Add doxy for missing arguments	2022-10-17 09:56:47 +02:00
film_grain_params.c
film_grain_params.h
fixed_dsp.c	lavu/fixed_dsp: add missing av_restrict qualifiers	2022-10-04 10:56:12 +02:00
fixed_dsp.h	lavu/fixeddsp: RISC-V V butterflies_fixed	2022-09-27 13:19:52 +02:00
float2half.c
float2half.h
float_dsp.c	lavu/floatdsp: RISC-V V vector_fmul_scalar	2022-09-27 13:19:52 +02:00
float_dsp.h	lavu/floatdsp: RISC-V V vector_fmul_scalar	2022-09-27 13:19:52 +02:00
frame.c	avutil/imgutils: Add wrapper for av_image_copy() to avoid casts	2023-09-12 09:42:27 +02:00
frame.h	lavu: add video_hint API	2023-08-08 09:46:11 +02:00
getenv_utf8.h
half2float.c
half2float.h
hash.c	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
hash.h
hdr_dynamic_metadata.c	avutil/hdr_dynamic_metadata: allow av_dynamic_hdr_plus_to_t35() to accept an existing buffer	2023-04-05 09:47:12 -03:00
hdr_dynamic_metadata.h	avutil/hdr_dynamic_metadata: allow av_dynamic_hdr_plus_to_t35() to accept an existing buffer	2023-04-05 09:47:12 -03:00
hdr_dynamic_vivid_metadata.c
hdr_dynamic_vivid_metadata.h	libavutil/hdr_dynamic_vivid_metadata: fix three spline params	2023-03-17 18:51:16 +08:00
hmac.c	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
hmac.h
hwcontext_cuda_internal.h
hwcontext_cuda.c	libavutil/hwcontext_cuda: don't destroy external context when using current CUDA context	2023-09-29 19:42:11 +02:00
hwcontext_cuda.h	avutil/hwcontext_cuda: add option to use current device context	2023-09-28 19:23:51 +02:00
hwcontext_d3d11va.c	avutil/imgutils: Add wrapper for av_image_copy() to avoid casts	2023-09-12 09:42:27 +02:00
hwcontext_d3d11va.h
hwcontext_d3d12va_internal.h	libavutil: add hwcontext_d3d12va and AV_PIX_FMT_D3D12	2023-12-21 11:27:21 +01:00
hwcontext_d3d12va.c	avutil/hwcontext_d3d12va: Use av_image_copy() wrapper	2024-02-07 23:21:58 +01:00
hwcontext_d3d12va.h	libavutil: add hwcontext_d3d12va and AV_PIX_FMT_D3D12	2023-12-21 11:27:21 +01:00
hwcontext_drm.c
hwcontext_drm.h
hwcontext_dxva2.c	avutil/imgutils: Add wrapper for av_image_copy() to avoid casts	2023-09-12 09:42:27 +02:00
hwcontext_dxva2.h
hwcontext_internal.h	libavutil: add hwcontext_d3d12va and AV_PIX_FMT_D3D12	2023-12-21 11:27:21 +01:00
hwcontext_mediacodec.c	avutil/hwcontext_mediacodec: fix backward compatibility	2023-01-26 23:31:37 +08:00
hwcontext_mediacodec.h	avutil/hwcontext_mediacodec: fix backward compatibility	2023-01-26 23:31:37 +08:00
hwcontext_opencl.c	avutil/hwcontext_opencl: Use proper OpenCLFramesContext	2024-02-13 18:55:22 +01:00
hwcontext_opencl.h
hwcontext_qsv.c	lavu/hwcontext_qsv: use mfxImplDescription instead of mfxExtendedDeviceId on Linux	2023-12-05 10:11:19 +08:00
hwcontext_qsv.h
hwcontext_stub.c
hwcontext_vaapi.c	avutil/hwcontext_vaapi: Allocate pub and priv frames hwctx together	2024-02-24 15:27:49 +01:00
hwcontext_vaapi.h
hwcontext_vdpau.c
hwcontext_vdpau.h
hwcontext_videotoolbox.c	avutil/hwcontext_vt: add pixel format map for full range YUV420P	2024-01-13 12:33:47 +01:00
hwcontext_videotoolbox.h	avutil/hwcontext_videotoolbox: add frame hwctx to specify color range	2024-01-04 20:51:17 +01:00
hwcontext_vulkan.c	hwcontext_vulkan: guard unistd.h include	2023-12-11 23:53:59 +01:00
hwcontext_vulkan.h	hwcontext_vulkan: rewrite to support multiplane surfaces	2023-05-29 00:41:49 +02:00
hwcontext.c	avutil/hwcontext: Don't check before av_buffer_unref()	2024-02-25 12:06:40 +01:00
hwcontext.h	libavutil: add hwcontext_d3d12va and AV_PIX_FMT_D3D12	2023-12-21 11:27:21 +01:00
iamf.c	all: use designated initializers for AVOption.unit	2024-02-24 15:27:39 +01:00
iamf.h	avutil/iamf: add some more doxy to structs	2024-02-07 23:21:48 +01:00
imgutils_internal.h
imgutils.c	avutil/imgutils: fix half-float representation of 0.0625	2024-01-05 12:53:23 +01:00
imgutils.h	avutil/imgutils: add new function av_image_fill_color()	2023-12-14 20:39:44 +01:00
integer.c	avutil/integer: Use '|' instead of '+' where it is more natural	2022-10-24 20:11:20 +02:00
integer.h
internal.h	avutil/internal: Don't auto-include emms.h	2023-09-04 11:04:45 +02:00
intfloat.h
intmath.c
intmath.h	lavu/riscv: add <intmath.h> optimisations	2022-09-13 16:50:43 -03:00
intreadwrite.h	avutil/intreadwrite: Remove obsolete warning	2024-02-24 15:27:47 +01:00
lfg.c
lfg.h	avutil/lfg: Minor doxy improvements	2022-10-17 09:56:47 +02:00
libavutil.v
libm.h
lls.c
lls.h
log2_tab.c
log.c	lavu/log: do not assume AVClass.item_name is always set	2023-11-09 11:25:17 +01:00
log.h
lzo.c
lzo.h
macos_kperf.c	macos_kperf: fix incomplete prototype	2023-07-22 21:35:15 +03:00
macos_kperf.h
macros.h
Makefile	libavutil: add hwcontext_d3d12va and AV_PIX_FMT_D3D12	2023-12-21 11:27:21 +01:00
mastering_display_metadata.c
mastering_display_metadata.h
mathematics.c	Move bessel_i0() from swresample/resample to avutil/mathematics	2023-05-29 00:45:28 +02:00
mathematics.h	Move bessel_i0() from swresample/resample to avutil/mathematics	2023-05-29 00:45:28 +02:00
md5.c	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
md5.h
mem_internal.h	avutil/mem: limit alignment to maximum simd align	2024-03-01 19:21:12 +01:00
mem.c	avutil/mem: limit alignment to maximum simd align	2024-03-01 19:21:12 +01:00
mem.h	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
motion_vector.h
murmur3.c	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
murmur3.h
objc.h
opt.c	avutil/opt: Use correct function pointer type	2024-02-25 12:06:40 +01:00
opt.h	all: Don't set AVClass.item_name to its default value	2023-12-22 16:49:25 +01:00
parseutils.c
parseutils.h	avutil/parseutils: Use inline code and properly escape	2022-10-17 09:56:47 +02:00
pixdesc.c	avutil/pixfmt: fix AV_PIX_FMT_RGB8 description	2024-02-07 23:21:49 +01:00
pixdesc.h	avutil/pixdesc: add AV_PIX_FMT_FLAG_XYZ	2023-10-31 15:46:07 +01:00
pixelutils.c
pixelutils.h
pixfmt.h	avutil/pixfmt: Add AV_VIDEO_MAX_PLANES	2024-02-24 15:27:40 +01:00
qsort.h
random_seed.c	avutil/random_seed: turn off buffering when reading from random	2023-07-16 11:48:31 +02:00
random_seed.h	avutil/random_seed: include stddef.h	2023-07-05 10:25:12 -07:00
rational.c	avutil/rational: increase av_d2q precision	2024-02-07 23:22:15 +01:00
rational.h	avutil/rational: Document what is to be expected from av_d2q() of doubles representing rational numbers	2024-02-12 18:18:30 +01:00
rc4.c
rc4.h	avutil/rc4: Add doxy for missing arguments	2022-10-17 09:56:47 +02:00
replaygain.h
reverse.c
reverse.h
ripemd.c
ripemd.h
samplefmt.c	avutil/samplefmt: Constify some pointees	2023-09-12 09:17:28 +02:00
samplefmt.h	avutil/samplefmt: Constify some pointees	2023-09-12 09:17:28 +02:00
sfc64.h	avutil/eval: Use even better PRNG	2024-02-07 23:44:20 +01:00
sha512.c
sha512.h
sha.c
sha.h
slicethread.c	slicethread: Limit the automatic number of threads to 16	2022-09-06 18:46:44 +03:00
slicethread.h
softfloat_ieee754.h
softfloat_tables.h
softfloat.h	avutil/softfloat: Basic documentation for av_sincos_sf()	2023-06-23 02:06:46 +02:00
spherical.c	avutil/avstring: Remove obsolete version.h inclusion	2023-09-07 00:48:50 +02:00
spherical.h	avutil/spherical: Add file to doxy group	2022-10-17 09:55:19 +02:00
stereo3d.c
stereo3d.h	avutil/stereo3d: Add file to doxy group	2022-10-17 09:55:19 +02:00
tablegen.h
tea.c
tea.h
thread.h	avutil/thread: fix pthread_setname_np parameters for NetBSD and Apple	2024-02-07 23:22:16 +01:00
threadmessage.c	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
threadmessage.h
time_internal.h
time.c
time.h
timecode.c
timecode.h	libavutil/timecode: fix parameter order in documentation	2024-02-07 23:21:48 +01:00
timer.h	timer: don't leak perf FD if zero	2023-07-22 21:35:15 +03:00
timestamp.h	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
tree.c
tree.h
twofish.c
twofish.h	avutil/twofish: Fix doxy @param typo	2022-10-17 09:51:47 +02:00
tx_double.c
tx_float.c
tx_int32.c
tx_priv.h	avutil/tx: add rader FFT algorithm support	2023-12-14 21:07:59 +01:00
tx_template.c	avutil/tx_template: small reduction of number of multiplications	2024-01-11 17:49:07 +01:00
tx.c	avutil/tx: print debug log at trace level	2024-02-24 15:27:53 +01:00
tx.h	lavu/tx: add DCT-I and DST-I transforms	2023-09-01 23:59:10 +02:00
utils.c
uuid.c
uuid.h	avutil/uuid: Remove bogus doxy return doc	2022-10-17 09:56:47 +02:00
version_major.h
version.c	avutil/version: Remove outdated checks	2024-02-24 15:27:50 +01:00
version.h	avutil/channel_layout: add av_channel_layout_custom_init()	2024-02-13 18:55:19 +01:00
video_enc_params.c	lavu/video_enc_params: Avoid relying on an undefined C construct	2023-01-31 14:22:54 +02:00
video_enc_params.h	avutil/video_enc_params: fix doxy for av_video_enc_params_block()	2023-10-30 10:30:05 -03:00
video_hint.c	lavu: add video_hint API	2023-08-08 09:46:11 +02:00
video_hint.h	lavu: add video_hint API	2023-08-08 09:46:11 +02:00
vulkan_functions.h	vulkan: enable VK_KHR_cooperative_matrix	2023-08-26 23:14:53 +02:00
vulkan_loader.h	vulkan: enable VK_KHR_cooperative_matrix	2023-08-26 23:14:53 +02:00
vulkan.c	vulkan: return VK_NOT_READY when no queries are available	2023-10-28 21:16:15 +02:00
vulkan.h	vulkan: return VK_NOT_READY when no queries are available	2023-10-28 21:16:15 +02:00
wchar_filename.h	avutil/mem: Don't include avutil.h	2023-09-07 00:42:10 +02:00
xga_font_data.c
xga_font_data.h
xtea.c
xtea.h