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* avcodec/lossless_videoencdsp: Constify src sub_left_predictAndreas Rheinhardt2022-07-31
| | | | Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
* all: Replace if (ARCH_FOO) checks by #if ARCH_FOOAndreas Rheinhardt2022-06-15
| | | | | | | | | | | | | | | | | | 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>
* avcodec/utvideoenc : add SIMD (avx) for sub_left_predictionMartin Vignali2018-01-28
| | | | asm code by Henrik Gramner
* huffyuvencdsp: move shared functions to a new lossless_videoencdsp contextJames Almer2017-01-12
Signed-off-by: James Almer <jamrial@gmail.com>