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LibVideo: Implement CICP color space conversion

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This adds a struct called CodingIndependentCodePoints and related enums
that are used by video codecs to define its color space that frames
must be converted from when displaying a video.

Pre-multiplied matrices and lookup tables are stored to avoid most of
the floating point division and exponentiation in the conversion.
This commit is contained in:
Zaggy1024 2022-10-10 05:03:57 -05:00 • committed by Andreas Kling
parent ba79de0439
commit cd127b65c3
15 changed files with 935 additions and 18 deletions
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3
Userland/Libraries/LibVideo/VP9/Decoder.h
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@ -10,6 +10,7 @@
#include <AK/ByteBuffer.h>
#include <AK/Error.h>
#include <AK/Span.h>
#include <LibVideo/Color/CodingIndependentCodePoints.h>
#include <LibVideo/DecoderError.h>
#include "Parser.h"
@ -32,6 +33,8 @@ public:
Gfx::Size<size_t> get_y_plane_size();
bool get_uv_subsampling_y();
bool get_uv_subsampling_x();
CodingIndependentCodePoints get_cicp_color_space();
u8 get_bit_depth();
private:
typedef i32 Intermediate;