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14 Commits

Author SHA1 Message Date
Michael Niedermayer
610dd74502 avcodec/diracdsp: Fix integer overflow in PUT_SIGNED_RECT_CLAMPED() 
Fixes: runtime error: signed integer overflow: 2147483646 + 2048 cannot be represented in type 'int'
Fixes: 4479/clusterfuzz-testcase-minimized-6529894147162112

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-12-06 22:09:25 +01:00
Michael Niedermayer
b2d9d72269 avcodec/diracdsp: fix integer overflow 
Fixes: runtime error: signed integer overflow: 11 * 225726413 cannot be represented in type 'int'
Fixes: 2764/clusterfuzz-testcase-minimized-5382561922547712

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-08-01 13:54:43 +02:00
Rostislav Pehlivanov
80721cc1ff diracdsp: add dequantization SIMD 
Currently unused, to be used in the following commits.

Signed-off-by: Rostislav Pehlivanov <rpehlivanov@obe.tv>
 2016-07-11 23:30:11 +01:00
Timothy Gu
17ab8f7e68 diracdsp: Make x86 files/functions names consistent 2016-02-05 19:29:43 -08:00
James Almer
033e7dbd31 avcodec/diracdsp: use av_clip_uintp2 
Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2016-01-21 13:13:54 -03:00
Rostislav Pehlivanov
8248b51e0b diracdec: add support for 12 bit videos 
The DSP lacked a function needed to convert signed to unsigned. This was
ignored when originally adding support and templating for bit depths
greater than 8. The 10 bit function was used for 12 bit pictures and
resulted in an improper conversion.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
 2016-01-21 14:48:32 +00:00
Kieran Kunhya
3f07f12f65 diracdec: Template DSP functions adding 10-bit versions 2015-12-10 18:25:02 +00:00
Michael Niedermayer
22a80272ae avcodec/diracdsp: Mark ff_diracdsp_init() as av_cold 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-02-27 16:53:37 +01:00
Michael Niedermayer
3a2d1465c8 Merge commit '2d60444331fca1910510038dd3817bea885c2367' 
* commit '2d60444331fca1910510038dd3817bea885c2367':
  dsputil: Split motion estimation compare bits off into their own context

Conflicts:
	configure
	libavcodec/Makefile
	libavcodec/arm/Makefile
	libavcodec/dvenc.c
	libavcodec/error_resilience.c
	libavcodec/h264.h
	libavcodec/h264_slice.c
	libavcodec/me_cmp.c
	libavcodec/me_cmp.h
	libavcodec/motion_est.c
	libavcodec/motion_est_template.c
	libavcodec/mpeg4videoenc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/x86/Makefile
	libavcodec/x86/me_cmp_init.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-07-17 23:27:40 +02:00
Michael Niedermayer
1bc85fb32d dirac: mark some variables const. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-03-15 22:12:02 +01:00
Michael Niedermayer
c0dbab964d dirac: ff_diracdsp_init_mmx() is only compiled when yasm is available 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-31 02:47:23 +01:00
Michael Niedermayer
e8b891b7f0 dirac: enable diracdsp_mmx 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-30 23:28:48 +01:00
Jordi Ortiz
49aa397414 Dirac: More formating 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-30 21:50:17 +01:00
multiple authors
5d50fcc549 DIRAC Decoder stable version, MMX support removed. 
Look for MMX_DISABLED to find the disabled functions.

Authors of this code are Marco Gerards <marco@gnu.org> and David Conrad <lessen42@gmail.com>
With changes from Jordi Ortiz <nenjordi@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-10-30 21:50:08 +01:00