1b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian/* 2b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * Copyright (c) 2014 The WebM project authors. All Rights Reserved. 3b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * 4b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * Use of this source code is governed by a BSD-style license 5b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * that can be found in the LICENSE file in the root of the source 6b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * tree. An additional intellectual property rights grant can be found 7b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * in the file PATENTS. All contributing project authors may 8b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian * be found in the AUTHORS file in the root of the source tree. 9b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian */ 10b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 11b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include <assert.h> 12b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include <limits.h> 13b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include <math.h> 14b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include <stdio.h> 15b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include <stdlib.h> 16b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include <string.h> 17b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 18b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include "vp9/common/vp9_common.h" 19b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#include "vp9/encoder/vp9_resize.h" 20b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 21b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#define FILTER_BITS 7 22b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 23b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#define INTERP_TAPS 8 24b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#define SUBPEL_BITS 5 25b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#define SUBPEL_MASK ((1 << SUBPEL_BITS) - 1) 26b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian#define INTERP_PRECISION_BITS 32 27b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 28b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramaniantypedef int16_t interp_kernel[INTERP_TAPS]; 29b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 30b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian// Filters for interpolation (0.5-band) - note this also filters integer pels. 31b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianconst interp_kernel vp9_filteredinterp_filters500[(1 << SUBPEL_BITS)] = { 32b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-3, 0, 35, 64, 35, 0, -3, 0}, 33b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-3, -1, 34, 64, 36, 1, -3, 0}, 34b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-3, -1, 32, 64, 38, 1, -3, 0}, 35b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-2, -2, 31, 63, 39, 2, -3, 0}, 36b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-2, -2, 29, 63, 41, 2, -3, 0}, 37b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-2, -2, 28, 63, 42, 3, -4, 0}, 38b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-2, -3, 27, 63, 43, 4, -4, 0}, 39b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-2, -3, 25, 62, 45, 5, -4, 0}, 40b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-2, -3, 24, 62, 46, 5, -4, 0}, 41b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-2, -3, 23, 61, 47, 6, -4, 0}, 42b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-2, -3, 21, 60, 49, 7, -4, 0}, 43b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 20, 60, 50, 8, -4, -1}, 44b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 19, 59, 51, 9, -4, -1}, 45b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 17, 58, 52, 10, -4, 0}, 46b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 16, 57, 53, 12, -4, -1}, 47b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 15, 56, 54, 13, -4, -1}, 48b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 14, 55, 55, 14, -4, -1}, 49b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 13, 54, 56, 15, -4, -1}, 50b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 12, 53, 57, 16, -4, -1}, 51b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -4, 10, 52, 58, 17, -4, -1}, 52b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 9, 51, 59, 19, -4, -1}, 53b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -4, 8, 50, 60, 20, -4, -1}, 54b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -4, 7, 49, 60, 21, -3, -2}, 55b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -4, 6, 47, 61, 23, -3, -2}, 56b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -4, 5, 46, 62, 24, -3, -2}, 57b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -4, 5, 45, 62, 25, -3, -2}, 58b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -4, 4, 43, 63, 27, -3, -2}, 59b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -4, 3, 42, 63, 28, -2, -2}, 60b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -3, 2, 41, 63, 29, -2, -2}, 61b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -3, 2, 39, 63, 31, -2, -2}, 62b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -3, 1, 38, 64, 32, -1, -3}, 63b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -3, 1, 36, 64, 34, -1, -3} 64b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian}; 65b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 66b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian// Filters for interpolation (0.625-band) - note this also filters integer pels. 67b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianconst interp_kernel vp9_filteredinterp_filters625[(1 << SUBPEL_BITS)] = { 68b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -8, 33, 80, 33, -8, -1, 0}, 69b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -8, 30, 80, 35, -8, -1, 1}, 70b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, -8, 28, 80, 37, -7, -2, 1}, 71b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -8, 26, 79, 39, -7, -2, 1}, 72b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -8, 24, 79, 41, -7, -2, 1}, 73b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -8, 22, 78, 43, -6, -2, 1}, 74b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -8, 20, 78, 45, -5, -3, 1}, 75b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -8, 18, 77, 48, -5, -3, 1}, 76b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -8, 16, 76, 50, -4, -3, 1}, 77b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -8, 15, 75, 52, -3, -4, 1}, 78b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -7, 13, 74, 54, -3, -4, 1}, 79b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -7, 11, 73, 56, -2, -4, 1}, 80b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, -7, 10, 71, 58, -1, -4, 1}, 81b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -7, 8, 70, 60, 0, -5, 1}, 82b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -6, 6, 68, 62, 1, -5, 1}, 83b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -6, 5, 67, 63, 2, -5, 1}, 84b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -6, 4, 65, 65, 4, -6, 1}, 85b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -5, 2, 63, 67, 5, -6, 1}, 86b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -5, 1, 62, 68, 6, -6, 1}, 87b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -5, 0, 60, 70, 8, -7, 1}, 88b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -4, -1, 58, 71, 10, -7, 0}, 89b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -4, -2, 56, 73, 11, -7, 0}, 90b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -4, -3, 54, 74, 13, -7, 0}, 91b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -4, -3, 52, 75, 15, -8, 0}, 92b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -3, -4, 50, 76, 16, -8, 0}, 93b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -3, -5, 48, 77, 18, -8, 0}, 94b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -3, -5, 45, 78, 20, -8, 0}, 95b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -2, -6, 43, 78, 22, -8, 0}, 96b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -2, -7, 41, 79, 24, -8, 0}, 97b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -2, -7, 39, 79, 26, -8, 0}, 98b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -2, -7, 37, 80, 28, -8, -1}, 99b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -1, -8, 35, 80, 30, -8, -1}, 100b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian}; 101b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 102b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian// Filters for interpolation (0.75-band) - note this also filters integer pels. 103b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianconst interp_kernel vp9_filteredinterp_filters750[(1 << SUBPEL_BITS)] = { 104b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -11, 25, 96, 25, -11, 2, 0}, 105b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -11, 22, 96, 28, -11, 2, 0}, 106b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -10, 19, 95, 31, -11, 2, 0}, 107b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -10, 17, 95, 34, -12, 2, 0}, 108b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -9, 14, 94, 37, -12, 2, 0}, 109b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -8, 12, 93, 40, -12, 1, 0}, 110b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -8, 9, 92, 43, -12, 1, 1}, 111b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -7, 7, 91, 46, -12, 1, 0}, 112b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -7, 5, 90, 49, -12, 1, 0}, 113b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -6, 3, 88, 52, -12, 0, 1}, 114b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -5, 1, 86, 55, -12, 0, 1}, 115b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -5, -1, 84, 58, -11, 0, 1}, 116b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -4, -2, 82, 61, -11, -1, 1}, 117b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -4, -4, 80, 64, -10, -1, 1}, 118b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -3, -5, 77, 67, -9, -1, 1}, 119b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -3, -6, 75, 70, -8, -2, 1}, 120b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -2, -7, 72, 72, -7, -2, 1}, 121b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -2, -8, 70, 75, -6, -3, 1}, 122b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -1, -9, 67, 77, -5, -3, 1}, 123b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -1, -10, 64, 80, -4, -4, 2}, 124b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -1, -11, 61, 82, -2, -4, 2}, 125b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, 0, -11, 58, 84, -1, -5, 2}, 126b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, 0, -12, 55, 86, 1, -5, 2}, 127b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, 0, -12, 52, 88, 3, -6, 2}, 128b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 1, -12, 49, 90, 5, -7, 2}, 129b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 1, -12, 46, 91, 7, -7, 2}, 130b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, 1, -12, 43, 92, 9, -8, 2}, 131b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 1, -12, 40, 93, 12, -8, 2}, 132b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 2, -12, 37, 94, 14, -9, 2}, 133b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 2, -12, 34, 95, 17, -10, 2}, 134b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 2, -11, 31, 95, 19, -10, 2}, 135b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 2, -11, 28, 96, 22, -11, 2} 136b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian}; 137b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 138b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian// Filters for interpolation (0.875-band) - note this also filters integer pels. 139b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianconst interp_kernel vp9_filteredinterp_filters875[(1 << SUBPEL_BITS)] = { 140b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {3, -8, 13, 112, 13, -8, 3, 0}, 141b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {3, -7, 10, 112, 17, -9, 3, -1}, 142b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -6, 7, 111, 21, -9, 3, -1}, 143b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -5, 4, 111, 24, -10, 3, -1}, 144b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {2, -4, 1, 110, 28, -11, 3, -1}, 145b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -3, -1, 108, 32, -12, 4, -1}, 146b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -2, -3, 106, 36, -13, 4, -1}, 147b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -1, -6, 105, 40, -14, 4, -1}, 148b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, -1, -7, 102, 44, -14, 4, -1}, 149b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, 0, -9, 100, 48, -15, 4, -1}, 150b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {1, 1, -11, 97, 53, -16, 4, -1}, 151b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 1, -12, 95, 57, -16, 4, -1}, 152b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 2, -13, 91, 61, -16, 4, -1}, 153b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 2, -14, 88, 65, -16, 4, -1}, 154b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 3, -15, 84, 69, -17, 4, 0}, 155b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 3, -16, 81, 73, -16, 3, 0}, 156b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 3, -16, 77, 77, -16, 3, 0}, 157b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 3, -16, 73, 81, -16, 3, 0}, 158b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 4, -17, 69, 84, -15, 3, 0}, 159b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -16, 65, 88, -14, 2, 0}, 160b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -16, 61, 91, -13, 2, 0}, 161b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -16, 57, 95, -12, 1, 0}, 162b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -16, 53, 97, -11, 1, 1}, 163b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -15, 48, 100, -9, 0, 1}, 164b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -14, 44, 102, -7, -1, 1}, 165b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -14, 40, 105, -6, -1, 1}, 166b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -13, 36, 106, -3, -2, 1}, 167b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -12, 32, 108, -1, -3, 1}, 168b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 3, -11, 28, 110, 1, -4, 2}, 169b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 3, -10, 24, 111, 4, -5, 2}, 170b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 3, -9, 21, 111, 7, -6, 2}, 171b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 3, -9, 17, 112, 10, -7, 3} 172b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian}; 173b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 174b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian// Filters for interpolation (full-band) - no filtering for integer pixels 175b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianconst interp_kernel vp9_filteredinterp_filters1000[(1 << SUBPEL_BITS)] = { 176b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 0, 0, 128, 0, 0, 0, 0}, 177b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 1, -3, 128, 3, -1, 0, 0}, 178b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 2, -6, 127, 7, -2, 1, 0}, 179b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 3, -9, 126, 12, -4, 1, 0}, 180b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -12, 125, 16, -5, 1, 0}, 181b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -14, 123, 20, -6, 2, 0}, 182b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 5, -15, 120, 25, -8, 2, 0}, 183b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 5, -17, 118, 30, -9, 3, -1}, 184b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -18, 114, 35, -10, 3, -1}, 185b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -19, 111, 41, -12, 3, -1}, 186b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -20, 107, 46, -13, 4, -1}, 187b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -21, 103, 52, -14, 4, -1}, 188b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -21, 99, 57, -16, 5, -1}, 189b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -21, 94, 63, -17, 5, -1}, 190b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -20, 89, 68, -18, 5, -1}, 191b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -20, 84, 73, -19, 6, -1}, 192b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -20, 79, 79, -20, 6, -1}, 193b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 6, -19, 73, 84, -20, 6, -1}, 194b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 5, -18, 68, 89, -20, 6, -1}, 195b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 5, -17, 63, 94, -21, 6, -1}, 196b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 5, -16, 57, 99, -21, 6, -1}, 197b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -14, 52, 103, -21, 6, -1}, 198b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 4, -13, 46, 107, -20, 6, -1}, 199b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 3, -12, 41, 111, -19, 6, -1}, 200b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 3, -10, 35, 114, -18, 6, -1}, 201b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {-1, 3, -9, 30, 118, -17, 5, -1}, 202b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 2, -8, 25, 120, -15, 5, -1}, 203b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 2, -6, 20, 123, -14, 4, -1}, 204b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 1, -5, 16, 125, -12, 4, -1}, 205b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 1, -4, 12, 126, -9, 3, -1}, 206b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 1, -2, 7, 127, -6, 2, -1}, 207b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian {0, 0, -1, 3, 128, -3, 1, 0} 208b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian}; 209b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 210b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian// Filters for factor of 2 downsampling. 211b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic const int16_t vp9_down2_symeven_half_filter[] = {56, 12, -3, -1}; 212b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic const int16_t vp9_down2_symodd_half_filter[] = {64, 35, 0, -3}; 213b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 214b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic const interp_kernel *choose_interp_filter(int inlength, int outlength) { 215b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int outlength16 = outlength * 16; 216b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (outlength16 >= inlength * 16) 217b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian return vp9_filteredinterp_filters1000; 218b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian else if (outlength16 >= inlength * 13) 219b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian return vp9_filteredinterp_filters875; 220b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian else if (outlength16 >= inlength * 11) 221b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian return vp9_filteredinterp_filters750; 222b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian else if (outlength16 >= inlength * 9) 223b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian return vp9_filteredinterp_filters625; 224b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian else 225b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian return vp9_filteredinterp_filters500; 226b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 227b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 228b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic void interpolate(const uint8_t *const input, int inlength, 229b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *output, int outlength) { 230b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int64_t delta = (((uint64_t)inlength << 32) + outlength / 2) / 231b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian outlength; 232b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int64_t offset = inlength > outlength ? 233b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian (((int64_t)(inlength - outlength) << 31) + outlength / 2) / outlength : 234b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian -(((int64_t)(outlength - inlength) << 31) + outlength / 2) / outlength; 235b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *optr = output; 236b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int x, x1, x2, sum, k, int_pel, sub_pel; 237b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int64_t y; 238b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 239b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const interp_kernel *interp_filters = 240b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian choose_interp_filter(inlength, outlength); 241b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 242b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian x = 0; 243b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian y = offset; 244b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian while ((y >> INTERP_PRECISION_BITS) < (INTERP_TAPS / 2 - 1)) { 245b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian x++; 246b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian y += delta; 247b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 248b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian x1 = x; 249b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian x = outlength - 1; 250b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian y = delta * x + offset; 251b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian while ((y >> INTERP_PRECISION_BITS) + 252b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian (int64_t)(INTERP_TAPS / 2) >= inlength) { 253b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian x--; 254b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian y -= delta; 255b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 256b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian x2 = x; 257b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (x1 > x2) { 258b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (x = 0, y = offset; x < outlength; ++x, y += delta) { 259b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int16_t *filter; 260b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int_pel = y >> INTERP_PRECISION_BITS; 261b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK; 262b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filter = interp_filters[sub_pel]; 263b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum = 0; 264b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (k = 0; k < INTERP_TAPS; ++k) { 265b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int pk = int_pel - INTERP_TAPS / 2 + 1 + k; 266b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += filter[k] * input[(pk < 0 ? 0 : 267b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian (pk >= inlength ? inlength - 1 : pk))]; 268b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 269b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); 270b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 271b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } else { 272b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Initial part. 273b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (x = 0, y = offset; x < x1; ++x, y += delta) { 274b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int16_t *filter; 275b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int_pel = y >> INTERP_PRECISION_BITS; 276b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK; 277b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filter = interp_filters[sub_pel]; 278b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum = 0; 279b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (k = 0; k < INTERP_TAPS; ++k) 280b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += filter[k] * input[(int_pel - INTERP_TAPS / 2 + 1 + k < 0 ? 281b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 0 : 282b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int_pel - INTERP_TAPS / 2 + 1 + k)]; 283b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); 284b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 285b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Middle part. 286b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (; x <= x2; ++x, y += delta) { 287b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int16_t *filter; 288b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int_pel = y >> INTERP_PRECISION_BITS; 289b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK; 290b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filter = interp_filters[sub_pel]; 291b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum = 0; 292b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (k = 0; k < INTERP_TAPS; ++k) 293b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += filter[k] * input[int_pel - INTERP_TAPS / 2 + 1 + k]; 294b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); 295b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 296b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // End part. 297b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (; x < outlength; ++x, y += delta) { 298b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int16_t *filter; 299b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int_pel = y >> INTERP_PRECISION_BITS; 300b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK; 301b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filter = interp_filters[sub_pel]; 302b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum = 0; 303b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (k = 0; k < INTERP_TAPS; ++k) 304b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += filter[k] * input[(int_pel - INTERP_TAPS / 2 + 1 + k >= 305b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian inlength ? inlength - 1 : 306b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int_pel - INTERP_TAPS / 2 + 1 + k)]; 307b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS)); 308b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 309b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 310b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 311b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 312b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic void down2_symeven(const uint8_t *const input, int length, 313b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *output) { 314b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Actual filter len = 2 * filter_len_half. 315b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian static const int16_t *filter = vp9_down2_symeven_half_filter; 316b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int filter_len_half = sizeof(vp9_down2_symeven_half_filter) / 2; 317b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int i, j; 318b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *optr = output; 319b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int l1 = filter_len_half; 320b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int l2 = (length - filter_len_half); 321b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian l1 += (l1 & 1); 322b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian l2 += (l2 & 1); 323b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (l1 > l2) { 324b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Short input length. 325b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (i = 0; i < length; i += 2) { 326b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int sum = (1 << (FILTER_BITS - 1)); 327b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (j = 0; j < filter_len_half; ++j) { 328b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += (input[(i - j < 0 ? 0 : i - j)] + 329b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian input[(i + 1 + j >= length ? length - 1 : i + 1 + j)]) * 330b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filter[j]; 331b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 332b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum >>= FILTER_BITS; 333b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(sum); 334b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 335b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } else { 336b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Initial part. 337b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (i = 0; i < l1; i += 2) { 338b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int sum = (1 << (FILTER_BITS - 1)); 339b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (j = 0; j < filter_len_half; ++j) { 340b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += (input[(i - j < 0 ? 0 : i - j)] + input[i + 1 + j]) * filter[j]; 341b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 342b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum >>= FILTER_BITS; 343b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(sum); 344b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 345b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Middle part. 346b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (; i < l2; i += 2) { 347b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int sum = (1 << (FILTER_BITS - 1)); 348b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (j = 0; j < filter_len_half; ++j) { 349b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += (input[i - j] + input[i + 1 + j]) * filter[j]; 350b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 351b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum >>= FILTER_BITS; 352b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(sum); 353b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 354b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // End part. 355b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (; i < length; i += 2) { 356b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int sum = (1 << (FILTER_BITS - 1)); 357b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (j = 0; j < filter_len_half; ++j) { 358b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += (input[i - j] + 359b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian input[(i + 1 + j >= length ? length - 1 : i + 1 + j)]) * 360b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filter[j]; 361b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 362b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum >>= FILTER_BITS; 363b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(sum); 364b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 365b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 366b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 367b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 368b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic void down2_symodd(const uint8_t *const input, int length, 369b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *output) { 370b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Actual filter len = 2 * filter_len_half - 1. 371b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian static const int16_t *filter = vp9_down2_symodd_half_filter; 372b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int filter_len_half = sizeof(vp9_down2_symodd_half_filter) / 2; 373b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int i, j; 374b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *optr = output; 375b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int l1 = filter_len_half - 1; 376b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int l2 = (length - filter_len_half + 1); 377b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian l1 += (l1 & 1); 378b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian l2 += (l2 & 1); 379b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (l1 > l2) { 380b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Short input length. 381b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (i = 0; i < length; i += 2) { 382b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0]; 383b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (j = 1; j < filter_len_half; ++j) { 384b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += (input[(i - j < 0 ? 0 : i - j)] + 385b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian input[(i + j >= length ? length - 1 : i + j)]) * 386b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filter[j]; 387b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 388b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum >>= FILTER_BITS; 389b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(sum); 390b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 391b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } else { 392b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Initial part. 393b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (i = 0; i < l1; i += 2) { 394b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0]; 395b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (j = 1; j < filter_len_half; ++j) { 396b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += (input[(i - j < 0 ? 0 : i - j)] + input[i + j]) * filter[j]; 397b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 398b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum >>= FILTER_BITS; 399b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(sum); 400b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 401b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // Middle part. 402b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (; i < l2; i += 2) { 403b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0]; 404b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (j = 1; j < filter_len_half; ++j) { 405b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += (input[i - j] + input[i + j]) * filter[j]; 406b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 407b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum >>= FILTER_BITS; 408b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(sum); 409b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 410b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian // End part. 411b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (; i < length; i += 2) { 412b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0]; 413b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (j = 1; j < filter_len_half; ++j) { 414b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum += (input[i - j] + input[(i + j >= length ? length - 1 : i + j)]) * 415b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filter[j]; 416b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 417b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian sum >>= FILTER_BITS; 418b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *optr++ = clip_pixel(sum); 419b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 420b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 421b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 422b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 423b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic int get_down2_length(int length, int steps) { 424b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int s; 425b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (s = 0; s < steps; ++s) 426b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian length = (length + 1) >> 1; 427b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian return length; 428b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 429b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 430b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianint get_down2_steps(int in_length, int out_length) { 431b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int steps = 0; 432b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int proj_in_length; 433b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian while ((proj_in_length = get_down2_length(in_length, 1)) >= out_length) { 434b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian ++steps; 435b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian in_length = proj_in_length; 436b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 437b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian return steps; 438b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 439b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 440b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic void resize_multistep(const uint8_t *const input, 441b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int length, 442b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *output, 443b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int olength, 444b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *buf) { 445b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int steps; 446b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (length == olength) { 447b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian memcpy(output, input, sizeof(uint8_t) * length); 448b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian return; 449b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 450b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian steps = get_down2_steps(length, olength); 451b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 452b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (steps > 0) { 453b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int s; 454b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *out = NULL; 455b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *tmpbuf = NULL; 456b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *otmp, *otmp2; 457b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int filteredlength = length; 458b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (!tmpbuf) { 459b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian tmpbuf = (uint8_t *)malloc(sizeof(uint8_t) * length); 460b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian otmp = tmpbuf; 461b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } else { 462b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian otmp = buf; 463b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 464b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian otmp2 = otmp + get_down2_length(length, 1); 465b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (s = 0; s < steps; ++s) { 466b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const int proj_filteredlength = get_down2_length(filteredlength, 1); 467b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const uint8_t *const in = (s == 0 ? input : out); 468b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (s == steps - 1 && proj_filteredlength == olength) 469b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian out = output; 470b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian else 471b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian out = (s & 1 ? otmp2 : otmp); 472b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (filteredlength & 1) 473b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian down2_symodd(in, filteredlength, out); 474b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian else 475b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian down2_symeven(in, filteredlength, out); 476b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian filteredlength = proj_filteredlength; 477b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 478b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (filteredlength != olength) { 479b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian interpolate(out, filteredlength, output, olength); 480b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 481b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian if (tmpbuf) 482b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian free(tmpbuf); 483b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } else { 484b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian interpolate(input, length, output, olength); 485b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 486b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 487b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 488b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic void fill_col_to_arr(uint8_t *img, int stride, int len, uint8_t *arr) { 489b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int i; 490b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *iptr = img; 491b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *aptr = arr; 492b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (i = 0; i < len; ++i, iptr += stride) { 493b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *aptr++ = *iptr; 494b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 495b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 496b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 497b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianstatic void fill_arr_to_col(uint8_t *img, int stride, int len, uint8_t *arr) { 498b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int i; 499b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *iptr = img; 500b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *aptr = arr; 501b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (i = 0; i < len; ++i, iptr += stride) { 502b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian *iptr = *aptr++; 503b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 504b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 505b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 506b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianvoid vp9_resize_plane(const uint8_t *const input, 507b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int height, 508b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int width, 509b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int in_stride, 510b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *output, 511b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int height2, 512b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int width2, 513b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int out_stride) { 514b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int i; 515b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *intbuf = (uint8_t *)malloc(sizeof(uint8_t) * width2 * height); 516b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *tmpbuf = (uint8_t *)malloc(sizeof(uint8_t) * 517b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian (width < height ? height : width)); 518b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *arrbuf = (uint8_t *)malloc(sizeof(uint8_t) * (height + height2)); 519b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (i = 0; i < height; ++i) 520b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian resize_multistep(input + in_stride * i, width, 521b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian intbuf + width2 * i, width2, tmpbuf); 522b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian for (i = 0; i < width2; ++i) { 523b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian fill_col_to_arr(intbuf + i, width2, height, arrbuf); 524b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian resize_multistep(arrbuf, height, arrbuf + height, height2, tmpbuf); 525b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian fill_arr_to_col(output + i, out_stride, height2, arrbuf + height); 526b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian } 527b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian free(intbuf); 528b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian free(tmpbuf); 529b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian free(arrbuf); 530b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 531b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 532b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianvoid vp9_resize_frame420(const uint8_t *const y, 533b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int y_stride, 534b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const uint8_t *const u, const uint8_t *const v, 535b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int uv_stride, 536b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int height, int width, 537b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *oy, int oy_stride, 538b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *ou, uint8_t *ov, int ouv_stride, 539b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int oheight, int owidth) { 540b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(y, height, width, y_stride, 541b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian oy, oheight, owidth, oy_stride); 542b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(u, height / 2, width / 2, uv_stride, 543b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian ou, oheight / 2, owidth / 2, ouv_stride); 544b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(v, height / 2, width / 2, uv_stride, 545b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian ov, oheight / 2, owidth / 2, ouv_stride); 546b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 547b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 548b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianvoid vp9_resize_frame422(const uint8_t *const y, int y_stride, 549b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const uint8_t *const u, const uint8_t *const v, 550b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int uv_stride, 551b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int height, int width, 552b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *oy, int oy_stride, 553b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *ou, uint8_t *ov, int ouv_stride, 554b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int oheight, int owidth) { 555b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(y, height, width, y_stride, 556b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian oy, oheight, owidth, oy_stride); 557b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(u, height, width / 2, uv_stride, 558b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian ou, oheight, owidth / 2, ouv_stride); 559b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(v, height, width / 2, uv_stride, 560b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian ov, oheight, owidth / 2, ouv_stride); 561b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 562b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian 563b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanianvoid vp9_resize_frame444(const uint8_t *const y, int y_stride, 564b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian const uint8_t *const u, const uint8_t *const v, 565b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int uv_stride, 566b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int height, int width, 567b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *oy, int oy_stride, 568b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian uint8_t *ou, uint8_t *ov, int ouv_stride, 569b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian int oheight, int owidth) { 570b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(y, height, width, y_stride, 571b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian oy, oheight, owidth, oy_stride); 572b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(u, height, width, uv_stride, 573b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian ou, oheight, owidth, ouv_stride); 574b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian vp9_resize_plane(v, height, width, uv_stride, 575b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian ov, oheight, owidth, ouv_stride); 576b08e2e23eec181e9951df33cd704ac294c5407b6Vignesh Venkatasubramanian} 577