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14 commits

Author SHA1 Message Date
Andreas Rheinhardt
c76155236f avcodec/snow_dwt: Fix left shifts of negative numbers 
Affected the vsynth(1|2|_lena)-snow(|-hpel) tests.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-10-24 16:28:14 +02:00
Andreas Rheinhardt
abb85429f3 avcodec/me_cmp: Constify me_cmp_func buffer parameters 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-07-31 03:31:53 +02:00
Andreas Rheinhardt
40e6575aa3 all: Replace if (ARCH_FOO) checks by #if ARCH_FOO 
This is more spec-compliant because it does not rely
on dead-code elimination by the compiler. Especially
MSVC has problems with this, as can be seen in
https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/296373.html
or
https://ffmpeg.org/pipermail/ffmpeg-devel/2022-May/297022.html

This commit does not eliminate every instance where we rely
on dead code elimination: It only tackles branching to
the initialization of arch-specific dsp code, not e.g. all
uses of CONFIG_ and HAVE_ checks. But maybe it is already
enough to compile FFmpeg with MSVC with whole-programm-optimizations
enabled (if one does not disable too many components).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-06-15 04:56:37 +02:00
Andreas Rheinhardt
1ea3650823 Replace all occurences of av_mallocz_array() by av_calloc() 
They do the same.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2021-09-20 01:03:52 +02:00
Andreas Rheinhardt
854f7bab5a avcodec/snow_dwt: Make ff_snow_(horizont|vertic)al_compose97i static 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2021-09-08 22:59:14 +02:00
Michael Niedermayer
4b0f78ad1f avcodec/snow_dwt: Remove ff_ prefix from ff_spatial_idwt_init() and ff_spatial_idwt_slice() 
They are only used once in the file in which they are defined

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-05-18 14:07:48 +02:00
Michael Niedermayer
0e699676f9 avcodec/snow: mark dwt init as av_cold 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-02-27 16:53:37 +01:00
Michael Niedermayer
0f931b29f7 Factorize avpriv_mirror() out 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-05 01:45:49 +01:00
Derek Buitenhuis
402a61c919 snow_dwt: Don't try and free members of non-existent arrays 
If allocation fails earlier on, and the next frame is processed,
the slice buffer could be left in a state where line and data_stack
have already been freed, or are otherwise null pointers.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-12-15 21:52:19 -05:00
Michael Niedermayer
ea41e6d637 Merge commit '9c12c6ff95' 
* commit '9c12c6ff95':
  motion_est: convert stride to ptrdiff_t

Conflicts:
	libavcodec/me_cmp.c
	libavcodec/ppc/me_cmp.c
	libavcodec/x86/me_cmp_init.c

See: 9c669672c7
Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-24 12:13:00 +01:00
Michael Niedermayer
3a2d1465c8 Merge commit '2d60444331' 
* commit '2d60444331':
  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
a520d8fd35 avcodec/snow_dwt: fix "incompatible pointer type" warnings 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-05-03 22:49:21 +02:00
Michael Niedermayer
c161134035 avcodec/snow_dwt: use av_malloc(z)_array() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-23 15:51:41 +02:00
Michael Niedermayer
30981a966f lavc: split snow and dirac DWTs 
There is only about 4 lines of common code, so it alot cleaner
when seperated.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-14 22:59:05 +01:00
Renamed from libavcodec/dwt.c (Browse further)