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https://github.com/RGBCube/serenity
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1514004cd5
The first keyframe of the test video can be decoded with these changes. Raw memory allocations in the Parser have been replaced with Vector or Array to avoid memory leaks and OOBs.
45 lines
857 B
C++
45 lines
857 B
C++
/*
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* Copyright (c) 2021, Hunter Salyer <thefalsehonesty@gmail.com>
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* Copyright (c) 2022, Gregory Bertilson <zaggy1024@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Types.h>
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namespace Video::VP9 {
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// FIXME: Once everything is working, replace this with plain clamp
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// since parameter order is different
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template<typename T>
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T clip_3(T x, T y, T z)
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{
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return clamp(z, x, y);
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}
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template<typename T>
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u16 clip_1(u8 bit_depth, T x)
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{
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if (x < 0) {
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return 0u;
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}
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const T max = (1u << bit_depth) - 1u;
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if (x > max)
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return max;
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return x;
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}
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template<typename T, typename C>
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inline T brev(C bit_count, T value)
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{
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T result = 0;
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for (C i = 0; i < bit_count; i++) {
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auto bit = (value >> i) & 1;
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result |= bit << (bit_count - 1 - i);
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}
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return result;
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}
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}
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