filters/misc.cpp
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| 1 | // Avisynth v2.5. Copyright 2002 Ben Rudiak-Gould et al. | ||
| 2 | // http://avisynth.nl | ||
| 3 | |||
| 4 | // This program is free software; you can redistribute it and/or modify | ||
| 5 | // it under the terms of the GNU General Public License as published by | ||
| 6 | // the Free Software Foundation; either version 2 of the License, or | ||
| 7 | // (at your option) any later version. | ||
| 8 | // | ||
| 9 | // This program is distributed in the hope that it will be useful, | ||
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 12 | // GNU General Public License for more details. | ||
| 13 | // | ||
| 14 | // You should have received a copy of the GNU General Public License | ||
| 15 | // along with this program; if not, write to the Free Software | ||
| 16 | // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit | ||
| 17 | // http://www.gnu.org/copyleft/gpl.html . | ||
| 18 | // | ||
| 19 | // Linking Avisynth statically or dynamically with other modules is making a | ||
| 20 | // combined work based on Avisynth. Thus, the terms and conditions of the GNU | ||
| 21 | // General Public License cover the whole combination. | ||
| 22 | // | ||
| 23 | // As a special exception, the copyright holders of Avisynth give you | ||
| 24 | // permission to link Avisynth with independent modules that communicate with | ||
| 25 | // Avisynth solely through the interfaces defined in avisynth.h, regardless of the license | ||
| 26 | // terms of these independent modules, and to copy and distribute the | ||
| 27 | // resulting combined work under terms of your choice, provided that | ||
| 28 | // every copy of the combined work is accompanied by a complete copy of | ||
| 29 | // the source code of Avisynth (the version of Avisynth used to produce the | ||
| 30 | // combined work), being distributed under the terms of the GNU General | ||
| 31 | // Public License plus this exception. An independent module is a module | ||
| 32 | // which is not derived from or based on Avisynth, such as 3rd-party filters, | ||
| 33 | // import and export plugins, or graphical user interfaces. | ||
| 34 | |||
| 35 | |||
| 36 | #include "misc.h" | ||
| 37 | #include <avs/minmax.h> | ||
| 38 | #include "../core/bitblt.h" | ||
| 39 | #include "../core/internal.h" | ||
| 40 | |||
| 41 | |||
| 42 | |||
| 43 | |||
| 44 | /******************************************************************** | ||
| 45 | ***** Declare index of new filters for Avisynth's filter engine ***** | ||
| 46 | ********************************************************************/ | ||
| 47 | |||
| 48 | extern const AVSFunction Misc_filters[] = { | ||
| 49 | { "FixLuminance", BUILTIN_FUNC_PREFIX, "cif", FixLuminance::Create }, // clip, intercept, slope | ||
| 50 | { "PeculiarBlend", BUILTIN_FUNC_PREFIX, "ci", PeculiarBlend::Create }, // clip, cutoff | ||
| 51 | { "SkewRows", BUILTIN_FUNC_PREFIX, "ci", SkewRows::Create }, // clip, skew | ||
| 52 | { "FixBrokenChromaUpsampling", BUILTIN_FUNC_PREFIX, "c", FixBrokenChromaUpsampling::Create }, | ||
| 53 | { NULL } | ||
| 54 | }; | ||
| 55 | |||
| 56 | |||
| 57 | |||
| 58 | |||
| 59 | |||
| 60 | |||
| 61 | |||
| 62 | /******************************** | ||
| 63 | ******* Fix Luminance ****** | ||
| 64 | ********************************/ | ||
| 65 | |||
| 66 | 1 | FixLuminance::FixLuminance(PClip _child, int _vertex, int _slope, IScriptEnvironment* env) | |
| 67 |
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1 | : GenericVideoFilter(_child), vertex(_vertex), slope(_slope) |
| 68 | { | ||
| 69 |
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1 | if (!vi.IsYUY2()) |
| 70 | ✗ | env->ThrowError("FixLuminance: requires YUY2 input"); | |
| 71 | 1 | } | |
| 72 | |||
| 73 | |||
| 74 | ✗ | PVideoFrame FixLuminance::GetFrame(int n, IScriptEnvironment* env) | |
| 75 | { | ||
| 76 | ✗ | PVideoFrame frame = child->GetFrame(n, env); | |
| 77 | ✗ | env->MakeWritable(&frame); | |
| 78 | ✗ | BYTE* p = frame->GetWritePtr(); | |
| 79 | ✗ | const int pitch = frame->GetPitch(); | |
| 80 | ✗ | for (int y=0; y<=vertex-slope/16; ++y) | |
| 81 | { | ||
| 82 | ✗ | const int subtract = (vertex-y)*16/slope; | |
| 83 | ✗ | for (int x=0; x<vi.width; ++x) | |
| 84 | ✗ | p[x*2] = (BYTE)max(0, p[x*2]-subtract); | |
| 85 | ✗ | p += pitch; | |
| 86 | } | ||
| 87 | ✗ | return frame; | |
| 88 | ✗ | } | |
| 89 | |||
| 90 | |||
| 91 | ✗ | AVSValue __cdecl FixLuminance::Create(AVSValue args, void*, IScriptEnvironment* env) | |
| 92 | { | ||
| 93 | ✗ | return new FixLuminance(args[0].AsClip(), args[1].AsInt(), int(args[2].AsFloat()*16), env); | |
| 94 | } | ||
| 95 | |||
| 96 | |||
| 97 | |||
| 98 | |||
| 99 | |||
| 100 | |||
| 101 | /*********************************************** | ||
| 102 | ******* Fix Broken Chroma Upsampling ****** | ||
| 103 | ***********************************************/ | ||
| 104 | |||
| 105 | ✗ | FixBrokenChromaUpsampling::FixBrokenChromaUpsampling(PClip _clip, IScriptEnvironment* env) | |
| 106 | ✗ | : GenericVideoFilter(_clip) | |
| 107 | { | ||
| 108 | ✗ | if (!vi.IsYUY2()) | |
| 109 | ✗ | env->ThrowError("FixBrokenChromaUpsampling: requires YUY2 input"); | |
| 110 | ✗ | } | |
| 111 | |||
| 112 | |||
| 113 | ✗ | PVideoFrame __stdcall FixBrokenChromaUpsampling::GetFrame(int n, IScriptEnvironment* env) | |
| 114 | { | ||
| 115 | ✗ | PVideoFrame frame = child->GetFrame(n, env); | |
| 116 | ✗ | env->MakeWritable(&frame); | |
| 117 | ✗ | const int pitch = frame->GetPitch(); | |
| 118 | ✗ | BYTE* p = frame->GetWritePtr() + pitch; | |
| 119 | ✗ | for (int y = (frame->GetHeight()+1)/4; y > 0; --y) { | |
| 120 | ✗ | for (int x = 0; x < frame->GetRowSize(); x += 4) { | |
| 121 | ✗ | BYTE t1 = p[x+1], t3 = p[x+3]; | |
| 122 | ✗ | p[x+1] = p[pitch+x+1]; p[x+3] = p[pitch+x+3]; | |
| 123 | ✗ | p[pitch+x+1] = t1; p[pitch+x+3] = t3; | |
| 124 | } | ||
| 125 | ✗ | p += pitch*4; | |
| 126 | } | ||
| 127 | ✗ | return frame; | |
| 128 | ✗ | } | |
| 129 | |||
| 130 | |||
| 131 | ✗ | AVSValue __cdecl FixBrokenChromaUpsampling::Create( AVSValue args, void*, | |
| 132 | IScriptEnvironment* env ) | ||
| 133 | { | ||
| 134 | ✗ | return new FixBrokenChromaUpsampling(args[0].AsClip(), env); | |
| 135 | } | ||
| 136 | |||
| 137 | |||
| 138 | |||
| 139 | |||
| 140 | |||
| 141 | |||
| 142 | /********************************* | ||
| 143 | ******* Peculiar Blend ****** | ||
| 144 | *********************************/ | ||
| 145 | |||
| 146 | 1 | PeculiarBlend::PeculiarBlend(PClip _child, int _cutoff, IScriptEnvironment* env) | |
| 147 |
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1 | : GenericVideoFilter(_child), cutoff(_cutoff) |
| 148 | { | ||
| 149 |
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1 | if (!vi.IsYUY2()) |
| 150 | ✗ | env->ThrowError("PeculiarBlend: requires YUY2 input"); | |
| 151 | 1 | } | |
| 152 | |||
| 153 | |||
| 154 | 1 | PVideoFrame PeculiarBlend::GetFrame(int n, IScriptEnvironment* env) { | |
| 155 |
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1 | PVideoFrame a = child->GetFrame(n, env); |
| 156 |
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1 | PVideoFrame b = child->GetFrame(n+1, env); |
| 157 | ✗ | env->MakeWritable(&a); | |
| 158 | ✗ | BYTE* main = a->GetWritePtr(); | |
| 159 | ✗ | const BYTE* other = b->GetReadPtr(); | |
| 160 | ✗ | const int main_pitch = a->GetPitch(); | |
| 161 | ✗ | const int other_pitch = b->GetPitch(); | |
| 162 | ✗ | const int row_size = a->GetRowSize(); | |
| 163 | |||
| 164 | ✗ | if (cutoff-31 > 0) { | |
| 165 | ✗ | int copy_top = min(cutoff-31, vi.height); | |
| 166 | ✗ | env->BitBlt(main, main_pitch, other, other_pitch, row_size, copy_top); | |
| 167 | ✗ | main += main_pitch * copy_top; | |
| 168 | ✗ | other += other_pitch * copy_top; | |
| 169 | } | ||
| 170 | ✗ | for (int y = max(0, cutoff-31); y < min(cutoff, vi.height-1); ++y) { | |
| 171 | ✗ | int scale = cutoff - y; | |
| 172 | ✗ | for (int x = 0; x < row_size; ++x) | |
| 173 | ✗ | main[x] = main[x] + BYTE(((other[x] - main[x]) * scale + 16) >> 5); | |
| 174 | ✗ | main += main_pitch; | |
| 175 | ✗ | other += other_pitch; | |
| 176 | } | ||
| 177 | |||
| 178 | ✗ | return a; | |
| 179 | 1 | } | |
| 180 | |||
| 181 | |||
| 182 | ✗ | AVSValue __cdecl PeculiarBlend::Create(AVSValue args, void*, IScriptEnvironment* env) | |
| 183 | { | ||
| 184 | ✗ | return new PeculiarBlend(args[0].AsClip(), args[1].AsInt(), env); | |
| 185 | } | ||
| 186 | |||
| 187 | |||
| 188 | |||
| 189 | |||
| 190 | |||
| 191 | |||
| 192 | /******************************** | ||
| 193 | ******* SkewRows ****** | ||
| 194 | ********************************/ | ||
| 195 | |||
| 196 | 1 | SkewRows::SkewRows(PClip _child, int skew, IScriptEnvironment* env) | |
| 197 |
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1 | : GenericVideoFilter(_child) |
| 198 | { | ||
| 199 |
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1 | if ((vi.NumComponents() > 1) && vi.IsPlanar()) |
| 200 | ✗ | env->ThrowError("SkewRows: requires non-planar or greyscale input"); | |
| 201 | |||
| 202 |
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1 | if (vi.IsYUY2() && skew&1) |
| 203 | ✗ | env->ThrowError("SkewRows: For YUY2 skew must be even"); | |
| 204 | |||
| 205 | 1 | vi.height *= vi.width; | |
| 206 | 1 | vi.width += skew; | |
| 207 | 1 | vi.height += vi.width-1; // Ceiling | |
| 208 | 1 | vi.height /= vi.width; | |
| 209 | 1 | } | |
| 210 | |||
| 211 | |||
| 212 | ✗ | PVideoFrame SkewRows::GetFrame(int n, IScriptEnvironment* env) { | |
| 213 | |||
| 214 | ✗ | PVideoFrame src = child->GetFrame(n, env); | |
| 215 | ✗ | PVideoFrame dst = env->NewVideoFrameP(vi, &src); | |
| 216 | |||
| 217 | ✗ | const int srowsize = src->GetRowSize(); | |
| 218 | ✗ | const int spitch = src->GetPitch(); | |
| 219 | ✗ | const BYTE *sptr = src->GetReadPtr(); | |
| 220 | |||
| 221 | ✗ | const int drowsize = dst->GetRowSize(); | |
| 222 | ✗ | const int dpitch = dst->GetPitch(); | |
| 223 | ✗ | BYTE *dptr = dst->GetWritePtr(); | |
| 224 | |||
| 225 | ✗ | const int ssize = src->GetHeight()*srowsize; | |
| 226 | |||
| 227 | ✗ | int s=0, d=0; | |
| 228 | ✗ | for (int i=0; i < ssize; i++) { | |
| 229 | ✗ | if (s >= srowsize) { | |
| 230 | ✗ | s = 0; | |
| 231 | ✗ | sptr += spitch; | |
| 232 | } | ||
| 233 | ✗ | if (d >= drowsize) { | |
| 234 | ✗ | d = 0; | |
| 235 | ✗ | dptr += dpitch; | |
| 236 | } | ||
| 237 | ✗ | dptr[d++] = sptr[s++]; | |
| 238 | } | ||
| 239 | |||
| 240 | ✗ | while (d < drowsize) | |
| 241 | ✗ | dptr[d++] = 128; | |
| 242 | |||
| 243 | ✗ | return dst; | |
| 244 | |||
| 245 | ✗ | } | |
| 246 | |||
| 247 | |||
| 248 | ✗ | AVSValue __cdecl SkewRows::Create(AVSValue args, void*, IScriptEnvironment* env) | |
| 249 | { | ||
| 250 | ✗ | return new SkewRows(args[0].AsClip(), args[1].AsInt(), env); | |
| 251 | } | ||
| 252 |