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AVCodecContext profile
These 2 fields are not always the same, it is simpler to always use the same field
for detecting studio profile
Fixes: null pointer dereference
Fixes: ffmpeg_crash_3.avi
Found-by: Thuan Pham <thuanpv@comp.nus.edu.sg>, Marcel Böhme, Andrew Santosa and Alexandru RazvanCaciulescu with AFLSmart
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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This removes the last use of the ff_put/add_pixels_clamped global
function pointers, and as such they are removed.
This patch has a negative effect on performance on MIPS, since there's
a SIMD-optimized put/add_pixels_clamped, but no xvid or jrev. From a
code maintenance point of view, that is probably acceptable.
Because the global function pointers are removed, this fixes the following
tsan warnings when running e.g. fate-dnxhr-parse:
WARNING: ThreadSanitizer: data race (pid=29917)
Write of size 8 at 0x0000025b12d8 by thread T2 (mutexes: write M1543):
#0 ff_idctdsp_init src/libavcodec/idctdsp.c:313 (ffmpeg+0x00000044b68e)
[..]
Previous write of size 8 at 0x0000025b12d8 by thread T1 (mutexes: write M1541):
#0 ff_idctdsp_init src/libavcodec/idctdsp.c:313 (ffmpeg+0x00000044b68e)
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* commit '4cf2ffb7c45840b09bc49e34da88d4053dd442cb':
idct: Have function pointer prototype match implementation
Merged-by: Clément Bœsch <u@pkh.me>
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* commit '2ec9fa5ec60dcd10e1cb10d8b4e4437e634ea428':
idct: Change type of array stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>
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libavcodec/idctdsp.c(175) : warning C4028: formal parameter 2 different from declaration
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ptrdiff_t is the correct type for array strides and similar.
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This patch adds MSA (MIPS-SIMD-Arch) optimizations for idctdsp functions in new file idctdsp_msa.c and simple_idct_msa.c
Signed-off-by: Shivraj Patil <shivraj.patil@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
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* commit '95c0cec03acec0a80cc1c7db48f3b2355d9e767b':
idctdsp: Add global function pointers for {add|put}_pixels_clamped functions
Conflicts:
libavcodec/arm/idctdsp_init_arm.c
libavcodec/dct.h
libavcodec/idctdsp.c
libavcodec/jrevdct.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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These function pointers already existed in the ARM code. Adding them globally
allows calls to the function pointers to access arch-optimized versions of the
functions transparently.
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This reduces code duplication and differences with the fork.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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This allows sharing them with the xvid IDCT
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'b4987f72197e0c62cf2633bf835a9c32d2a445ae':
idct: Convert IDCT permutation #defines to an enum
Conflicts:
libavcodec/idctdsp.c
libavcodec/x86/cavsdsp.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Also rename the enum values to be consistent with other DCT permutations.
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Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* commit 'e3fcb14347466095839c2a3c47ebecff02da891e':
dsputil: Split off IDCT bits into their own context
Conflicts:
configure
libavcodec/aic.c
libavcodec/arm/Makefile
libavcodec/arm/dsputil_init_arm.c
libavcodec/arm/dsputil_init_armv6.c
libavcodec/asvdec.c
libavcodec/dnxhdenc.c
libavcodec/dsputil.c
libavcodec/dvdec.c
libavcodec/dxva2_mpeg2.c
libavcodec/intrax8.c
libavcodec/mdec.c
libavcodec/mjpegdec.c
libavcodec/mjpegenc_common.h
libavcodec/mpegvideo.c
libavcodec/ppc/dsputil_altivec.h
libavcodec/ppc/dsputil_ppc.c
libavcodec/ppc/idctdsp.c
libavcodec/x86/Makefile
libavcodec/x86/dsputil_init.c
libavcodec/x86/dsputil_mmx.c
libavcodec/x86/dsputil_x86.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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