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lavfi: add opencl tonemap filter

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This filter does HDR(HDR10/HLG) to SDR conversion with tone-mapping.

An example command to use this filter with vaapi codecs:
FFMPEG -init_hw_device vaapi=va:/dev/dri/renderD128 -init_hw_device \
opencl=ocl@va -hwaccel vaapi -hwaccel_device va -hwaccel_output_format \
vaapi -i INPUT -filter_hw_device ocl -filter_complex \
'[0:v]hwmap,tonemap_opencl=t=bt2020:tonemap=linear:format=p010[x1]; \
[x1]hwmap=derive_device=vaapi:reverse=1' -c:v hevc_vaapi -profile 2 OUTPUT

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
This commit is contained in:
Ruiling Song
2018-06-19 09:57:31 +08:00
committed by Mark Thompson
parent 714da1fd89
commit 8b8b0e2cd2
9 changed files with 1253 additions and 0 deletions
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2
libavfilter/opencl_source.h
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@@ -20,8 +20,10 @@
#define AVFILTER_OPENCL_SOURCE_H
extern const char *ff_opencl_source_avgblur;
extern const char *ff_opencl_source_colorspace_common;
extern const char *ff_opencl_source_convolution;
extern const char *ff_opencl_source_overlay;
extern const char *ff_opencl_source_tonemap;
extern const char *ff_opencl_source_unsharp;
#endif /* AVFILTER_OPENCL_SOURCE_H */