FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/snow.c
Date: 2025-10-31 17:51:11
Exec Total Coverage
Lines: 389 411 94.6%
Functions: 33 38 86.8%
Branches: 181 212 85.4%
Line Branch Exec Source
1 /*
2 * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
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 <assert.h>
22
23 #include "libavutil/log.h"
24 #include "libavutil/mem.h"
25 #include "libavutil/thread.h"
26 #include "avcodec.h"
27 #include "snow_dwt.h"
28 #include "snow.h"
29 #include "snowdata.h"
30
31 #define pixeltmp int16_t
32 #define BIT_DEPTH 8
33 #define SNOW
34 #include "h264qpel_template.c"
35
36 58634 static void put_snow_qpel2_h_lowpass_8(uint8_t *dst, const uint8_t *restrict src, int dstStride, int srcStride)
37 {
38 58634 const int h = 2;
39
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 175902 for (int i = 0; i < h; ++i) {
40 117268 dst[0] = av_clip_uint8(((src[0]+src[1])*20 - (src[-1]+src[2])*5 + (src[-2]+src[3]) + 16) >> 5);
41 117268 dst[1] = av_clip_uint8(((src[1]+src[2])*20 - (src[0 ]+src[3])*5 + (src[-1]+src[4]) + 16) >> 5);
42 117268 dst += dstStride;
43 117268 src += srcStride;
44 }
45 58634 }
46
47 65508 static void put_snow_qpel2_v_lowpass_8(uint8_t *dst, const uint8_t *restrict src, int dstStride, int srcStride)
48 {
49 65508 const int w = 2;
50
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 196524 for (int i = 0; i < w; ++i) {
51 131016 const int srcB = src[-2*srcStride];
52 131016 const int srcA = src[-1*srcStride];
53 131016 const int src0 = src[0 *srcStride];
54 131016 const int src1 = src[1 *srcStride];
55 131016 const int src2 = src[2 *srcStride];
56 131016 const int src3 = src[3 *srcStride];
57 131016 const int src4 = src[4 *srcStride];
58 131016 dst[0*dstStride] = av_clip_uint8(((src0+src1)*20 - (srcA+src2)*5 + (srcB+src3) + 16) >> 5);
59 131016 dst[1*dstStride] = av_clip_uint8(((src1+src2)*20 - (src0+src3)*5 + (srcA+src4) + 16) >> 5);
60 131016 dst++;
61 131016 src++;
62 }
63 65508 }
64
65 59440 static void put_snow_qpel2_hv_lowpass_8(uint8_t *dst, pixeltmp *tmp, const uint8_t *restrict src, int dstStride, int tmpStride, int srcStride)
66 {
67 59440 const int h = 2;
68 59440 const int w = 2;
69 59440 src -= 2*srcStride;
70
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 475520 for (int i = 0; i < h + 5; ++i) {
71 416080 tmp[0] = (src[0]+src[1])*20 - (src[-1]+src[2])*5 + (src[-2]+src[3]);
72 416080 tmp[1] = (src[1]+src[2])*20 - (src[0 ]+src[3])*5 + (src[-1]+src[4]);
73 416080 tmp += tmpStride;
74 416080 src += srcStride;
75 }
76 59440 tmp -= tmpStride*(h+5-2);
77
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 178320 for (int i = 0; i < w; ++i) {
78 118880 const int tmpB = tmp[-2*tmpStride];
79 118880 const int tmpA = tmp[-1*tmpStride];
80 118880 const int tmp0 = tmp[0 *tmpStride];
81 118880 const int tmp1 = tmp[1 *tmpStride];
82 118880 const int tmp2 = tmp[2 *tmpStride];
83 118880 const int tmp3 = tmp[3 *tmpStride];
84 118880 const int tmp4 = tmp[4 *tmpStride];
85 118880 dst[0*dstStride] = av_clip_uint8(((tmp0+tmp1)*20 - (tmpA+tmp2)*5 + (tmpB+tmp3) + 512) >> 10);
86 118880 dst[1*dstStride] = av_clip_uint8(((tmp1+tmp2)*20 - (tmp0+tmp3)*5 + (tmpA+tmp4) + 512) >> 10);
87 118880 dst++;
88 118880 tmp++;
89 }
90 59440 }
91
92 391404 H264_MC(put_, snow, 2)
93
94 31 static av_cold void init_qpel(SnowContext *const s)
95 {
96 static_assert(offsetof(H264QpelContext, put_h264_qpel_pixels_tab) == 0,
97 "put_h264_qpel_pixels_tab not at start of H264QpelContext");
98 31 ff_h264qpel_init(&s->h264qpel, 8);
99 31 s->put_snow_qpel_pixels_tab[3][0] = put_snow_qpel2_mc00_8_c;
100 31 s->put_snow_qpel_pixels_tab[3][1] = put_snow_qpel2_mc10_8_c;
101 31 s->put_snow_qpel_pixels_tab[3][2] = put_snow_qpel2_mc20_8_c;
102 31 s->put_snow_qpel_pixels_tab[3][3] = put_snow_qpel2_mc30_8_c;
103 31 s->put_snow_qpel_pixels_tab[3][4] = put_snow_qpel2_mc01_8_c;
104 31 s->put_snow_qpel_pixels_tab[3][5] = put_snow_qpel2_mc11_8_c;
105 31 s->put_snow_qpel_pixels_tab[3][6] = put_snow_qpel2_mc21_8_c;
106 31 s->put_snow_qpel_pixels_tab[3][7] = put_snow_qpel2_mc31_8_c;
107 31 s->put_snow_qpel_pixels_tab[3][8] = put_snow_qpel2_mc02_8_c;
108 31 s->put_snow_qpel_pixels_tab[3][9] = put_snow_qpel2_mc12_8_c;
109 31 s->put_snow_qpel_pixels_tab[3][10] = put_snow_qpel2_mc22_8_c;
110 31 s->put_snow_qpel_pixels_tab[3][11] = put_snow_qpel2_mc32_8_c;
111 31 s->put_snow_qpel_pixels_tab[3][12] = put_snow_qpel2_mc03_8_c;
112 31 s->put_snow_qpel_pixels_tab[3][13] = put_snow_qpel2_mc13_8_c;
113 31 s->put_snow_qpel_pixels_tab[3][14] = put_snow_qpel2_mc23_8_c;
114 31 s->put_snow_qpel_pixels_tab[3][15] = put_snow_qpel2_mc33_8_c;
115 31 }
116
117 710775 void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
118 int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
119 int y, x;
120 IDWTELEM * dst;
121
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 4521015 for(y=0; y<b_h; y++){
122 //FIXME ugly misuse of obmc_stride
123 3810240 const uint8_t *obmc1= obmc + y*obmc_stride;
124 3810240 const uint8_t *obmc2= obmc1+ (obmc_stride>>1);
125 3810240 const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
126 3810240 const uint8_t *obmc4= obmc3+ (obmc_stride>>1);
127
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 3810240 dst = slice_buffer_get_line(sb, src_y + y);
128
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 27656640 for(x=0; x<b_w; x++){
129 23846400 int v= obmc1[x] * block[3][x + y*src_stride]
130 23846400 +obmc2[x] * block[2][x + y*src_stride]
131 23846400 +obmc3[x] * block[1][x + y*src_stride]
132 23846400 +obmc4[x] * block[0][x + y*src_stride];
133
134 23846400 v <<= 8 - LOG2_OBMC_MAX;
135 if(FRAC_BITS != 8){
136 23846400 v >>= 8 - FRAC_BITS;
137 }
138
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 23846400 if(add){
139 23846400 v += dst[x + src_x];
140 23846400 v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS;
141
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 23846400 if(v&(~255)) v= ~(v>>31);
142 23846400 dst8[x + y*src_stride] = v;
143 }else{
144 ✗ dst[x + src_x] -= v;
145 }
146 }
147 }
148 710775 }
149
150 103 void ff_snow_reset_contexts(SnowContext *s){ //FIXME better initial contexts
151 int plane_index, level, orientation;
152
153
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 412 for(plane_index=0; plane_index<3; plane_index++){
154
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155
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 10197 for(orientation=level ? 1:0; orientation<4; orientation++){
156 7725 memset(s->plane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state));
157 }
158 }
159 }
160 103 memset(s->header_state, MID_STATE, sizeof(s->header_state));
161 103 memset(s->block_state, MID_STATE, sizeof(s->block_state));
162 103 }
163
164 472 int ff_snow_alloc_blocks(SnowContext *s){
165 472 int w= AV_CEIL_RSHIFT(s->avctx->width, LOG2_MB_SIZE);
166 472 int h= AV_CEIL_RSHIFT(s->avctx->height, LOG2_MB_SIZE);
167
168 472 s->b_width = w;
169 472 s->b_height= h;
170
171 472 av_free(s->block);
172 472 s->block = av_calloc(w * h, sizeof(*s->block) << (s->block_max_depth*2));
173
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 472 if (!s->block)
174 ✗ return AVERROR(ENOMEM);
175
176 472 return 0;
177 }
178
179 3240046 static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, int stride, int b_w, int b_h, int dx, int dy){
180 static const uint8_t weight[64]={
181 8,7,6,5,4,3,2,1,
182 7,7,0,0,0,0,0,1,
183 6,0,6,0,0,0,2,0,
184 5,0,0,5,0,3,0,0,
185 4,0,0,0,4,0,0,0,
186 3,0,0,5,0,3,0,0,
187 2,0,6,0,0,0,2,0,
188 1,7,0,0,0,0,0,1,
189 };
190
191 static const uint8_t brane[256]={
192 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12,
193 0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52,
194 0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc,
195 0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc,
196 0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc,
197 0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc,
198 0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc,
199 0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16,
200 0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56,
201 0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96,
202 0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc,
203 0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc,
204 0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc,
205 0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc,
206 0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc,
207 0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A,
208 };
209
210 static const uint8_t needs[16]={
211 0,1,0,0,
212 2,4,2,0,
213 0,1,0,0,
214 15
215 };
216
217 int x, y, b, r, l;
218 int16_t tmpIt [64*(32+HTAPS_MAX)];
219 uint8_t tmp2t[3][64*(32+HTAPS_MAX)];
220 3240046 int16_t *tmpI= tmpIt;
221 3240046 uint8_t *tmp2= tmp2t[0];
222 const uint8_t *hpel[11];
223 av_assert2(dx<16 && dy<16);
224 3240046 r= brane[dx + 16*dy]&15;
225 3240046 l= brane[dx + 16*dy]>>4;
226
227 3240046 b= needs[l] | needs[r];
228
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 3240046 if(p && !p->diag_mc)
229 ✗ b= 15;
230
231
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 3240046 if(b&5){
232
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 35888792 for(y=0; y < b_h+HTAPS_MAX-1; y++){
233
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 184147073 for(x=0; x < b_w; x++){
234 151160584 int a_1=src[x + HTAPS_MAX/2-4];
235 151160584 int a0= src[x + HTAPS_MAX/2-3];
236 151160584 int a1= src[x + HTAPS_MAX/2-2];
237 151160584 int a2= src[x + HTAPS_MAX/2-1];
238 151160584 int a3= src[x + HTAPS_MAX/2+0];
239 151160584 int a4= src[x + HTAPS_MAX/2+1];
240 151160584 int a5= src[x + HTAPS_MAX/2+2];
241 151160584 int a6= src[x + HTAPS_MAX/2+3];
242 151160584 int am=0;
243
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 151160584 if(!p || p->fast_mc){
244 151160584 am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);
245 151160584 tmpI[x]= am;
246 151160584 am= (am+16)>>5;
247 }else{
248 ✗ am= p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6);
249 ✗ tmpI[x]= am;
250 ✗ am= (am+32)>>6;
251 }
252
253
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 151160584 if(am&(~255)) am= ~(am>>31);
254 151160584 tmp2[x]= am;
255 }
256 32986489 tmpI+= 64;
257 32986489 tmp2+= 64;
258 32986489 src += stride;
259 }
260 2902303 src -= stride*y;
261 }
262 3240046 src += HTAPS_MAX/2 - 1;
263 3240046 tmp2= tmp2t[1];
264
265
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 3240046 if(b&2){
266
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267
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 58558688 for(x=0; x < b_w+1; x++){
268 49883520 int a_1=src[x + (HTAPS_MAX/2-4)*stride];
269 49883520 int a0= src[x + (HTAPS_MAX/2-3)*stride];
270 49883520 int a1= src[x + (HTAPS_MAX/2-2)*stride];
271 49883520 int a2= src[x + (HTAPS_MAX/2-1)*stride];
272 49883520 int a3= src[x + (HTAPS_MAX/2+0)*stride];
273 49883520 int a4= src[x + (HTAPS_MAX/2+1)*stride];
274 49883520 int a5= src[x + (HTAPS_MAX/2+2)*stride];
275 49883520 int a6= src[x + (HTAPS_MAX/2+3)*stride];
276 49883520 int am=0;
277
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 49883520 if(!p || p->fast_mc)
278 49883520 am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 16)>>5;
279 else
280 ✗ am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 32)>>6;
281
282
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 49883520 if(am&(~255)) am= ~(am>>31);
283 49883520 tmp2[x]= am;
284 }
285 8675168 src += stride;
286 8675168 tmp2+= 64;
287 }
288 1995647 src -= stride*y;
289 }
290 3240046 src += stride*(HTAPS_MAX/2 - 1);
291 3240046 tmp2= tmp2t[2];
292 3240046 tmpI= tmpIt;
293
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 3240046 if(b&4){
294
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295
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 49302472 for(x=0; x < b_w; x++){
296 40817200 int a_1=tmpI[x + (HTAPS_MAX/2-4)*64];
297 40817200 int a0= tmpI[x + (HTAPS_MAX/2-3)*64];
298 40817200 int a1= tmpI[x + (HTAPS_MAX/2-2)*64];
299 40817200 int a2= tmpI[x + (HTAPS_MAX/2-1)*64];
300 40817200 int a3= tmpI[x + (HTAPS_MAX/2+0)*64];
301 40817200 int a4= tmpI[x + (HTAPS_MAX/2+1)*64];
302 40817200 int a5= tmpI[x + (HTAPS_MAX/2+2)*64];
303 40817200 int a6= tmpI[x + (HTAPS_MAX/2+3)*64];
304 40817200 int am=0;
305
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 40817200 if(!p || p->fast_mc)
306 40817200 am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 512)>>10;
307 else
308 ✗ am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 2048)>>12;
309
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 40817200 if(am&(~255)) am= ~(am>>31);
310 40817200 tmp2[x]= am;
311 }
312 8485272 tmpI+= 64;
313 8485272 tmp2+= 64;
314 }
315 }
316
317 3240046 hpel[ 0]= src;
318 3240046 hpel[ 1]= tmp2t[0] + 64*(HTAPS_MAX/2-1);
319 3240046 hpel[ 2]= src + 1;
320
321 3240046 hpel[ 4]= tmp2t[1];
322 3240046 hpel[ 5]= tmp2t[2];
323 3240046 hpel[ 6]= tmp2t[1] + 1;
324
325 3240046 hpel[ 8]= src + stride;
326 3240046 hpel[ 9]= hpel[1] + 64;
327 3240046 hpel[10]= hpel[8] + 1;
328
329 #define MC_STRIDE(x) (needs[x] ? 64 : stride)
330
331
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 3240046 if(b==15){
332 789096 int dxy = dx / 8 + dy / 8 * 4;
333 789096 const uint8_t *src1 = hpel[dxy ];
334 789096 const uint8_t *src2 = hpel[dxy + 1];
335 789096 const uint8_t *src3 = hpel[dxy + 4];
336 789096 const uint8_t *src4 = hpel[dxy + 5];
337
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 789096 int stride1 = MC_STRIDE(dxy);
338
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 789096 int stride2 = MC_STRIDE(dxy + 1);
339
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 789096 int stride3 = MC_STRIDE(dxy + 4);
340
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 789096 int stride4 = MC_STRIDE(dxy + 5);
341 789096 dx&=7;
342 789096 dy&=7;
343
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 4253600 for(y=0; y < b_h; y++){
344
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 20026576 for(x=0; x < b_w; x++){
345 16562072 dst[x]= ((8-dx)*(8-dy)*src1[x] + dx*(8-dy)*src2[x]+
346 16562072 (8-dx)* dy *src3[x] + dx* dy *src4[x]+32)>>6;
347 }
348 3464504 src1+=stride1;
349 3464504 src2+=stride2;
350 3464504 src3+=stride3;
351 3464504 src4+=stride4;
352 3464504 dst +=stride;
353 }
354 }else{
355 2450950 const uint8_t *src1= hpel[l];
356 2450950 const uint8_t *src2= hpel[r];
357
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 2450950 int stride1 = MC_STRIDE(l);
358
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 2450950 int stride2 = MC_STRIDE(r);
359 2450950 int a= weight[((dx&7) + (8*(dy&7)))];
360 2450950 int b= 8-a;
361
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362
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 63665188 for(x=0; x < b_w; x++){
363 52938552 dst[x]= (a*src1[x] + b*src2[x] + 4)>>3;
364 }
365 10726636 src1+=stride1;
366 10726636 src2+=stride2;
367 10726636 dst +=stride;
368 }
369 }
370 3240046 }
371
372 9378716 void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, ptrdiff_t stride, int sx, int sy, int b_w, int b_h, const BlockNode *block, int plane_index, int w, int h){
373
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 9378716 if(block->type & BLOCK_INTRA){
374 int x, y;
375 1260713 const unsigned color = block->color[plane_index];
376 1260713 const unsigned color4 = color*0x01010101;
377
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 1260713 if(b_w==32){
378
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 604362 for(y=0; y < b_h; y++){
379 586048 *(uint32_t*)&dst[0 + y*stride]= color4;
380 586048 *(uint32_t*)&dst[4 + y*stride]= color4;
381 586048 *(uint32_t*)&dst[8 + y*stride]= color4;
382 586048 *(uint32_t*)&dst[12+ y*stride]= color4;
383 586048 *(uint32_t*)&dst[16+ y*stride]= color4;
384 586048 *(uint32_t*)&dst[20+ y*stride]= color4;
385 586048 *(uint32_t*)&dst[24+ y*stride]= color4;
386 586048 *(uint32_t*)&dst[28+ y*stride]= color4;
387 }
388
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 1242399 }else if(b_w==16){
389
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 2107888 for(y=0; y < b_h; y++){
390 1976224 *(uint32_t*)&dst[0 + y*stride]= color4;
391 1976224 *(uint32_t*)&dst[4 + y*stride]= color4;
392 1976224 *(uint32_t*)&dst[8 + y*stride]= color4;
393 1976224 *(uint32_t*)&dst[12+ y*stride]= color4;
394 }
395
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 1110735 }else if(b_w==8){
396
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 4818082 for(y=0; y < b_h; y++){
397 4272760 *(uint32_t*)&dst[0 + y*stride]= color4;
398 4272760 *(uint32_t*)&dst[4 + y*stride]= color4;
399 }
400
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 565413 }else if(b_w==4){
401
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 2864739 for(y=0; y < b_h; y++){
402 2300276 *(uint32_t*)&dst[0 + y*stride]= color4;
403 }
404 }else{
405
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406
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 11220 for(x=0; x < b_w; x++){
407 7480 dst[x + y*stride]= color;
408 }
409 }
410 }
411 }else{
412 8118003 const uint8_t *src = s->last_picture[block->ref]->data[plane_index];
413
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 8118003 const int scale= plane_index ? (2*s->mv_scale)>>s->chroma_h_shift : 2*s->mv_scale;
414 8118003 int mx= block->mx*scale;
415 8118003 int my= block->my*scale;
416 8118003 const int dx= mx&15;
417 8118003 const int dy= my&15;
418 8118003 const int tab_index= 3 - (b_w>>2) + (b_w>>4);
419 8118003 sx += (mx>>4) - (HTAPS_MAX/2-1);
420 8118003 sy += (my>>4) - (HTAPS_MAX/2-1);
421 8118003 src += sx + sy*stride;
422
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 8118003 if( (unsigned)sx >= FFMAX(w - b_w - (HTAPS_MAX-2), 0)
423
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 7607887 || (unsigned)sy >= FFMAX(h - b_h - (HTAPS_MAX-2), 0)){
424 1152698 s->vdsp.emulated_edge_mc(tmp + MB_SIZE, src,
425 stride, stride,
426 b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1,
427 sx, sy, w, h);
428 1152698 src= tmp + MB_SIZE;
429 }
430
431 av_assert2(s->chroma_h_shift == s->chroma_v_shift); // only one mv_scale
432
433 av_assert2((tab_index>=0 && tab_index<4) || b_w==32);
434
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 8118003 if( (dx&3) || (dy&3)
435
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 4898211 || !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h)
436
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437
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438
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439
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 4898211 || !s->plane[plane_index].fast_mc )
440 3219792 mc_block(&s->plane[plane_index], dst, src, stride, b_w, b_h, dx, dy);
441
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 4898211 else if(b_w==32){
442 int y;
443
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 864378 for(y=0; y<b_h; y+=16){
444 576252 s->put_snow_qpel_pixels_tab[0][dy+(dx>>2)](dst + y*stride, src + 3 + (y+3)*stride,stride);
445 576252 s->put_snow_qpel_pixels_tab[0][dy+(dx>>2)](dst + 16 + y*stride, src + 19 + (y+3)*stride,stride);
446 }
447
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 4610085 }else if(b_w==b_h)
448 4260886 s->put_snow_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst,src + 3 + 3*stride,stride);
449
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 349199 else if(b_w==2*b_h){
450 204372 s->put_snow_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst ,src + 3 + 3*stride,stride);
451 204372 s->put_snow_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst+b_h,src + 3 + b_h + 3*stride,stride);
452 }else{
453 av_assert2(2*b_w==b_h);
454 144827 s->put_snow_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst ,src + 3 + 3*stride ,stride);
455 144827 s->put_snow_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst+b_w*stride,src + 3 + 3*stride+b_w*stride,stride);
456 }
457 }
458 9378716 }
459
460 #define mca(dx,dy,b_w)\
461 static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h){\
462 av_assert2(h==b_w);\
463 mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\
464 }
465
466 ✗ mca( 0, 0,16)
467 5531 mca( 8, 0,16)
468 4969 mca( 0, 8,16)
469 9754 mca( 8, 8,16)
470 ✗ mca( 0, 0,8)
471 ✗ mca( 8, 0,8)
472 ✗ mca( 0, 8,8)
473 ✗ mca( 8, 8,8)
474
475 22 static av_cold void snow_static_init(void)
476 {
477
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 198 for (int i = 0; i < MAX_REF_FRAMES; i++)
478
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 1584 for (int j = 0; j < MAX_REF_FRAMES; j++)
479 1408 ff_scale_mv_ref[i][j] = 256 * (i + 1) / (j + 1);
480 22 }
481
482 31 av_cold int ff_snow_common_init(AVCodecContext *avctx){
483 static AVOnce init_static_once = AV_ONCE_INIT;
484 31 SnowContext *s = avctx->priv_data;
485 int width, height;
486 int i;
487
488 31 s->avctx= avctx;
489 31 s->max_ref_frames=1; //just make sure it's not an invalid value in case of no initial keyframe
490 31 s->spatial_decomposition_count = 1;
491
492 31 ff_videodsp_init(&s->vdsp, 8);
493 31 ff_dwt_init(&s->dwt);
494
495 31 init_qpel(s);
496
497 #define mcfh(dx,dy)\
498 s->hdsp.put_pixels_tab [0][dy/4+dx/8]=\
499 s->hdsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\
500 mc_block_hpel ## dx ## dy ## 16;\
501 s->hdsp.put_pixels_tab [1][dy/4+dx/8]=\
502 s->hdsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\
503 mc_block_hpel ## dx ## dy ## 8;
504
505 31 mcfh(0, 0)
506 31 mcfh(8, 0)
507 31 mcfh(0, 8)
508 31 mcfh(8, 8)
509
510 // dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift);
511
512 31 width= s->avctx->width;
513 31 height= s->avctx->height;
514
515
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 31 if (!FF_ALLOCZ_TYPED_ARRAY(s->spatial_idwt_buffer, width * height) ||
516
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 31 !FF_ALLOCZ_TYPED_ARRAY(s->spatial_dwt_buffer, width * height) || //FIXME this does not belong here
517
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 31 !FF_ALLOCZ_TYPED_ARRAY(s->temp_dwt_buffer, width) ||
518
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 31 !FF_ALLOCZ_TYPED_ARRAY(s->temp_idwt_buffer, width) ||
519
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 31 !FF_ALLOCZ_TYPED_ARRAY(s->run_buffer, ((width + 1) >> 1) * ((height + 1) >> 1) + 1))
520 ✗ return AVERROR(ENOMEM);
521
522
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 279 for(i=0; i<MAX_REF_FRAMES; i++) {
523 248 s->last_picture[i] = av_frame_alloc();
524
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 248 if (!s->last_picture[i])
525 ✗ return AVERROR(ENOMEM);
526 }
527
528 31 s->mconly_picture = av_frame_alloc();
529 31 s->current_picture = av_frame_alloc();
530
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 31 if (!s->mconly_picture || !s->current_picture)
531 ✗ return AVERROR(ENOMEM);
532
533 31 ff_thread_once(&init_static_once, snow_static_init);
534
535 31 return 0;
536 }
537
538 973 int ff_snow_common_init_after_header(AVCodecContext *avctx) {
539 973 SnowContext *s = avctx->priv_data;
540 int plane_index, level, orientation;
541
542
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 973 if(!s->scratchbuf) {
543 int emu_buf_size;
544 31 emu_buf_size = FFMAX(s->mconly_picture->linesize[0], 2*avctx->width+256) * (2 * MB_SIZE + HTAPS_MAX - 1);
545
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 31 if (!FF_ALLOCZ_TYPED_ARRAY(s->scratchbuf, FFMAX(s->mconly_picture->linesize[0], 2*avctx->width+256) * 7 * MB_SIZE) ||
546
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 31 !FF_ALLOCZ_TYPED_ARRAY(s->emu_edge_buffer, emu_buf_size))
547 ✗ return AVERROR(ENOMEM);
548 }
549
550
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 3892 for(plane_index=0; plane_index < s->nb_planes; plane_index++){
551 2919 int w= s->avctx->width;
552 2919 int h= s->avctx->height;
553
554
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 2919 if(plane_index){
555 1946 w = AV_CEIL_RSHIFT(w, s->chroma_h_shift);
556 1946 h = AV_CEIL_RSHIFT(h, s->chroma_v_shift);
557 }
558 2919 s->plane[plane_index].width = w;
559 2919 s->plane[plane_index].height= h;
560
561
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 17514 for(level=s->spatial_decomposition_count-1; level>=0; level--){
562
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 61299 for(orientation=level ? 1 : 0; orientation<4; orientation++){
563 46704 SubBand *b= &s->plane[plane_index].band[level][orientation];
564
565 46704 b->buf= s->spatial_dwt_buffer;
566 46704 b->level= level;
567 46704 b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level);
568 46704 b->width = (w + !(orientation&1))>>1;
569 46704 b->height= (h + !(orientation>1))>>1;
570
571 46704 b->stride_line = 1 << (s->spatial_decomposition_count - level);
572 46704 b->buf_x_offset = 0;
573 46704 b->buf_y_offset = 0;
574
575
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 46704 if(orientation&1){
576 29190 b->buf += (w+1)>>1;
577 29190 b->buf_x_offset = (w+1)>>1;
578 }
579
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 46704 if(orientation>1){
580 29190 b->buf += b->stride>>1;
581 29190 b->buf_y_offset = b->stride_line >> 1;
582 }
583 46704 b->ibuf= s->spatial_idwt_buffer + (b->buf - s->spatial_dwt_buffer);
584
585
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 46704 if(level)
586 35028 b->parent= &s->plane[plane_index].band[level-1][orientation];
587 //FIXME avoid this realloc
588 46704 av_freep(&b->x_coeff);
589 46704 b->x_coeff = av_calloc((b->width + 1) * b->height + 1,
590 sizeof(*b->x_coeff));
591
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 46704 if (!b->x_coeff)
592 ✗ return AVERROR(ENOMEM);
593 }
594 14595 w= (w+1)>>1;
595 14595 h= (h+1)>>1;
596 }
597 }
598
599 973 return 0;
600 }
601
602 973 int ff_snow_frames_prepare(SnowContext *s)
603 {
604 AVFrame *tmp;
605
606 973 tmp= s->last_picture[s->max_ref_frames-1];
607
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 973 for (int i = s->max_ref_frames - 1; i > 0; i--)
608 ✗ s->last_picture[i] = s->last_picture[i-1];
609 973 s->last_picture[0] = s->current_picture;
610 973 s->current_picture = tmp;
611
612 973 av_frame_unref(s->current_picture);
613
614
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 973 if(s->keyframe){
615 103 s->ref_frames= 0;
616 103 s->current_picture->flags |= AV_FRAME_FLAG_KEY;
617 }else{
618 int i;
619
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 1740 for(i=0; i<s->max_ref_frames && s->last_picture[i]->data[0]; i++)
620
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 870 if(i && (s->last_picture[i-1]->flags & AV_FRAME_FLAG_KEY))
621 ✗ break;
622 870 s->ref_frames= i;
623
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 870 if(s->ref_frames==0){
624 ✗ av_log(s->avctx,AV_LOG_ERROR, "No reference frames\n");
625 ✗ return AVERROR_INVALIDDATA;
626 }
627 870 s->current_picture->flags &= ~AV_FRAME_FLAG_KEY;
628 }
629
630 973 return 0;
631 }
632
633 31 av_cold void ff_snow_common_end(SnowContext *s)
634 {
635 int plane_index, level, orientation, i;
636
637 31 av_freep(&s->spatial_dwt_buffer);
638 31 av_freep(&s->temp_dwt_buffer);
639 31 av_freep(&s->spatial_idwt_buffer);
640 31 av_freep(&s->temp_idwt_buffer);
641 31 av_freep(&s->run_buffer);
642
643 31 av_freep(&s->block);
644 31 av_freep(&s->scratchbuf);
645 31 av_freep(&s->emu_edge_buffer);
646
647
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 279 for(i=0; i<MAX_REF_FRAMES; i++){
648 248 av_frame_free(&s->last_picture[i]);
649 }
650
651
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 155 for(plane_index=0; plane_index < MAX_PLANES; plane_index++){
652
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 1116 for(level=MAX_DECOMPOSITIONS-1; level>=0; level--){
653
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 4092 for(orientation=level ? 1 : 0; orientation<4; orientation++){
654 3100 SubBand *b= &s->plane[plane_index].band[level][orientation];
655
656 3100 av_freep(&b->x_coeff);
657 }
658 }
659 }
660 31 av_frame_free(&s->mconly_picture);
661 31 av_frame_free(&s->current_picture);
662 31 }
663