FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/hscale.c
Date: 2024-05-04 02:01:39
Exec Total Coverage
Lines: 155 162 95.7%
Functions: 10 10 100.0%
Branches: 41 54 75.9%
Line Branch Exec Source
1 /*
2 * Copyright (C) 2015 Pedro Arthur <bygrandao@gmail.com>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/mem.h"
22 #include "swscale_internal.h"
23
24 /// Scaler instance data
25 typedef struct FilterContext
26 {
27 uint16_t *filter;
28 int *filter_pos;
29 int filter_size;
30 int xInc;
31 } FilterContext;
32
33 /// Color conversion instance data
34 typedef struct ColorContext
35 {
36 uint32_t *pal;
37 } ColorContext;
38
39 1862034 static int lum_h_scale(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
40 {
41 1862034 FilterContext *instance = desc->instance;
42 1862034 int srcW = desc->src->width;
43 1862034 int dstW = desc->dst->width;
44 1862034 int xInc = instance->xInc;
45
46 int i;
47
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 10848572 for (i = 0; i < sliceH; ++i) {
48 8986538 uint8_t ** src = desc->src->plane[0].line;
49 8986538 uint8_t ** dst = desc->dst->plane[0].line;
50 8986538 int src_pos = sliceY+i - desc->src->plane[0].sliceY;
51 8986538 int dst_pos = sliceY+i - desc->dst->plane[0].sliceY;
52
53
54
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 8986538 if (c->hyscale_fast) {
55 ✗ c->hyscale_fast(c, (int16_t*)dst[dst_pos], dstW, src[src_pos], srcW, xInc);
56 } else {
57 8986538 c->hyScale(c, (int16_t*)dst[dst_pos], dstW, (const uint8_t *)src[src_pos], instance->filter,
58 8986538 instance->filter_pos, instance->filter_size);
59 }
60
61
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 8986538 if (c->lumConvertRange)
62 999177 c->lumConvertRange((int16_t*)dst[dst_pos], dstW);
63
64 8986538 desc->dst->plane[0].sliceH += 1;
65
66
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 8986538 if (desc->alpha) {
67 112607 src = desc->src->plane[3].line;
68 112607 dst = desc->dst->plane[3].line;
69
70 112607 src_pos = sliceY+i - desc->src->plane[3].sliceY;
71 112607 dst_pos = sliceY+i - desc->dst->plane[3].sliceY;
72
73 112607 desc->dst->plane[3].sliceH += 1;
74
75
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 112607 if (c->hyscale_fast) {
76 ✗ c->hyscale_fast(c, (int16_t*)dst[dst_pos], dstW, src[src_pos], srcW, xInc);
77 } else {
78 112607 c->hyScale(c, (int16_t*)dst[dst_pos], dstW, (const uint8_t *)src[src_pos], instance->filter,
79 112607 instance->filter_pos, instance->filter_size);
80 }
81 }
82 }
83
84 1862034 return sliceH;
85 }
86
87 275819 static int lum_convert(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
88 {
89 275819 int srcW = desc->src->width;
90 275819 ColorContext * instance = desc->instance;
91 275819 uint32_t * pal = instance->pal;
92 int i;
93
94 275819 desc->dst->plane[0].sliceY = sliceY;
95 275819 desc->dst->plane[0].sliceH = sliceH;
96 275819 desc->dst->plane[3].sliceY = sliceY;
97 275819 desc->dst->plane[3].sliceH = sliceH;
98
99
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 1874619 for (i = 0; i < sliceH; ++i) {
100 1598800 int sp0 = sliceY+i - desc->src->plane[0].sliceY;
101 1598800 int sp1 = ((sliceY+i) >> desc->src->v_chr_sub_sample) - desc->src->plane[1].sliceY;
102 1598800 const uint8_t * src[4] = { desc->src->plane[0].line[sp0],
103 1598800 desc->src->plane[1].line[sp1],
104 1598800 desc->src->plane[2].line[sp1],
105 1598800 desc->src->plane[3].line[sp0]};
106 1598800 uint8_t * dst = desc->dst->plane[0].line[i];
107
108
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 1598800 if (c->lumToYV12) {
109 1496958 c->lumToYV12(dst, src[0], src[1], src[2], srcW, pal, c->input_opaque);
110
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 101842 } else if (c->readLumPlanar) {
111 101842 c->readLumPlanar(dst, src, srcW, c->input_rgb2yuv_table, c->input_opaque);
112 }
113
114
115
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 1598800 if (desc->alpha) {
116 108575 dst = desc->dst->plane[3].line[i];
117
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 108575 if (c->alpToYV12) {
118 105152 c->alpToYV12(dst, src[3], src[1], src[2], srcW, pal, c->input_opaque);
119
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 3423 } else if (c->readAlpPlanar) {
120 3423 c->readAlpPlanar(dst, src, srcW, NULL, c->input_opaque);
121 }
122 }
123 }
124
125 275819 return sliceH;
126 }
127
128 866 int ff_init_desc_fmt_convert(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst, uint32_t *pal)
129 {
130 866 ColorContext * li = av_malloc(sizeof(ColorContext));
131
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 866 if (!li)
132 ✗ return AVERROR(ENOMEM);
133 866 li->pal = pal;
134 866 desc->instance = li;
135
136
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 866 desc->alpha = isALPHA(src->fmt) && isALPHA(dst->fmt);
137 866 desc->src =src;
138 866 desc->dst = dst;
139 866 desc->process = &lum_convert;
140
141 866 return 0;
142 }
143
144
145 4745 int ff_init_desc_hscale(SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst, uint16_t *filter, int * filter_pos, int filter_size, int xInc)
146 {
147 4745 FilterContext *li = av_malloc(sizeof(FilterContext));
148
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 4745 if (!li)
149 ✗ return AVERROR(ENOMEM);
150
151 4745 li->filter = filter;
152 4745 li->filter_pos = filter_pos;
153 4745 li->filter_size = filter_size;
154 4745 li->xInc = xInc;
155
156 4745 desc->instance = li;
157
158
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 4745 desc->alpha = isALPHA(src->fmt) && isALPHA(dst->fmt);
159 4745 desc->src = src;
160 4745 desc->dst = dst;
161
162 4745 desc->process = &lum_h_scale;
163
164 4745 return 0;
165 }
166
167 1552228 static int chr_h_scale(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
168 {
169 1552228 FilterContext *instance = desc->instance;
170 1552228 int srcW = AV_CEIL_RSHIFT(desc->src->width, desc->src->h_chr_sub_sample);
171 1552228 int dstW = AV_CEIL_RSHIFT(desc->dst->width, desc->dst->h_chr_sub_sample);
172 1552228 int xInc = instance->xInc;
173
174 1552228 uint8_t ** src1 = desc->src->plane[1].line;
175 1552228 uint8_t ** dst1 = desc->dst->plane[1].line;
176 1552228 uint8_t ** src2 = desc->src->plane[2].line;
177 1552228 uint8_t ** dst2 = desc->dst->plane[2].line;
178
179 1552228 int src_pos1 = sliceY - desc->src->plane[1].sliceY;
180 1552228 int dst_pos1 = sliceY - desc->dst->plane[1].sliceY;
181
182 1552228 int src_pos2 = sliceY - desc->src->plane[2].sliceY;
183 1552228 int dst_pos2 = sliceY - desc->dst->plane[2].sliceY;
184
185 int i;
186
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 7331164 for (i = 0; i < sliceH; ++i) {
187
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 5778936 if (c->hcscale_fast) {
188 ✗ c->hcscale_fast(c, (uint16_t*)dst1[dst_pos1+i], (uint16_t*)dst2[dst_pos2+i], dstW, src1[src_pos1+i], src2[src_pos2+i], srcW, xInc);
189 } else {
190 5778936 c->hcScale(c, (uint16_t*)dst1[dst_pos1+i], dstW, src1[src_pos1+i], instance->filter, instance->filter_pos, instance->filter_size);
191 5778936 c->hcScale(c, (uint16_t*)dst2[dst_pos2+i], dstW, src2[src_pos2+i], instance->filter, instance->filter_pos, instance->filter_size);
192 }
193
194
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 5778936 if (c->chrConvertRange)
195 417073 c->chrConvertRange((uint16_t*)dst1[dst_pos1+i], (uint16_t*)dst2[dst_pos2+i], dstW);
196
197 5778936 desc->dst->plane[1].sliceH += 1;
198 5778936 desc->dst->plane[2].sliceH += 1;
199 }
200 1552228 return sliceH;
201 }
202
203 368606 static int chr_convert(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
204 {
205 368606 int srcW = AV_CEIL_RSHIFT(desc->src->width, desc->src->h_chr_sub_sample);
206 368606 ColorContext * instance = desc->instance;
207 368606 uint32_t * pal = instance->pal;
208
209 368606 int sp0 = (sliceY - (desc->src->plane[0].sliceY >> desc->src->v_chr_sub_sample)) << desc->src->v_chr_sub_sample;
210 368606 int sp1 = sliceY - desc->src->plane[1].sliceY;
211
212 int i;
213
214 368606 desc->dst->plane[1].sliceY = sliceY;
215 368606 desc->dst->plane[1].sliceH = sliceH;
216 368606 desc->dst->plane[2].sliceY = sliceY;
217 368606 desc->dst->plane[2].sliceH = sliceH;
218
219
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 1870538 for (i = 0; i < sliceH; ++i) {
220 1501932 const uint8_t * src[4] = { desc->src->plane[0].line[sp0+i],
221 1501932 desc->src->plane[1].line[sp1+i],
222 1501932 desc->src->plane[2].line[sp1+i],
223 1501932 desc->src->plane[3].line[sp0+i]};
224
225 1501932 uint8_t * dst1 = desc->dst->plane[1].line[i];
226 1501932 uint8_t * dst2 = desc->dst->plane[2].line[i];
227
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 1501932 if (c->chrToYV12) {
228 1422540 c->chrToYV12(dst1, dst2, src[0], src[1], src[2], srcW, pal, c->input_opaque);
229
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 79392 } else if (c->readChrPlanar) {
230 79392 c->readChrPlanar(dst1, dst2, src, srcW, c->input_rgb2yuv_table, c->input_opaque);
231 }
232 }
233 368606 return sliceH;
234 }
235
236 721 int ff_init_desc_cfmt_convert(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst, uint32_t *pal)
237 {
238 721 ColorContext * li = av_malloc(sizeof(ColorContext));
239
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 721 if (!li)
240 ✗ return AVERROR(ENOMEM);
241 721 li->pal = pal;
242 721 desc->instance = li;
243
244 721 desc->src =src;
245 721 desc->dst = dst;
246 721 desc->process = &chr_convert;
247
248 721 return 0;
249 }
250
251 4280 int ff_init_desc_chscale(SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst, uint16_t *filter, int * filter_pos, int filter_size, int xInc)
252 {
253 4280 FilterContext *li = av_malloc(sizeof(FilterContext));
254
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 4280 if (!li)
255 ✗ return AVERROR(ENOMEM);
256
257 4280 li->filter = filter;
258 4280 li->filter_pos = filter_pos;
259 4280 li->filter_size = filter_size;
260 4280 li->xInc = xInc;
261
262 4280 desc->instance = li;
263
264
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 4280 desc->alpha = isALPHA(src->fmt) && isALPHA(dst->fmt);
265 4280 desc->src = src;
266 4280 desc->dst = dst;
267
268 4280 desc->process = &chr_h_scale;
269
270 4280 return 0;
271 }
272
273 51399 static int no_chr_scale(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
274 {
275 51399 desc->dst->plane[1].sliceY = sliceY + sliceH - desc->dst->plane[1].available_lines;
276 51399 desc->dst->plane[1].sliceH = desc->dst->plane[1].available_lines;
277 51399 desc->dst->plane[2].sliceY = sliceY + sliceH - desc->dst->plane[2].available_lines;
278 51399 desc->dst->plane[2].sliceH = desc->dst->plane[2].available_lines;
279 51399 return 0;
280 }
281
282 465 int ff_init_desc_no_chr(SwsFilterDescriptor *desc, SwsSlice * src, SwsSlice *dst)
283 {
284 465 desc->src = src;
285 465 desc->dst = dst;
286 465 desc->alpha = 0;
287 465 desc->instance = NULL;
288 465 desc->process = &no_chr_scale;
289 465 return 0;
290 }
291