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1 | /* | ||
2 | * This file is part of FFmpeg. | ||
3 | * | ||
4 | * FFmpeg is free software; you can redistribute it and/or | ||
5 | * modify it under the terms of the GNU Lesser General Public | ||
6 | * License as published by the Free Software Foundation; either | ||
7 | * version 2.1 of the License, or (at your option) any later version. | ||
8 | * | ||
9 | * FFmpeg 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 GNU | ||
12 | * Lesser General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU Lesser General Public | ||
15 | * License along with FFmpeg; if not, write to the Free Software | ||
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
17 | */ | ||
18 | |||
19 | #include <assert.h> | ||
20 | #include <stdint.h> | ||
21 | #include <string.h> | ||
22 | |||
23 | #include "config.h" | ||
24 | #include "libavutil/avassert.h" | ||
25 | #include "libavutil/attributes.h" | ||
26 | #include "libavutil/imgutils.h" | ||
27 | #include "avcodec.h" | ||
28 | #include "me_cmp.h" | ||
29 | #include "mpegvideoencdsp.h" | ||
30 | |||
31 | ✗ | static int try_8x8basis_c(const int16_t rem[64], const int16_t weight[64], | |
32 | const int16_t basis[64], int scale) | ||
33 | { | ||
34 | int i; | ||
35 | ✗ | unsigned int sum = 0; | |
36 | |||
37 | ✗ | for (i = 0; i < 8 * 8; i++) { | |
38 | ✗ | int b = rem[i] + ((basis[i] * scale + | |
39 | ✗ | (1 << (BASIS_SHIFT - RECON_SHIFT - 1))) >> | |
40 | (BASIS_SHIFT - RECON_SHIFT)); | ||
41 | ✗ | int w = weight[i]; | |
42 | ✗ | b >>= RECON_SHIFT; | |
43 | av_assert2(-512 < b && b < 512); | ||
44 | |||
45 | ✗ | sum += (w * b) * (w * b) >> 4; | |
46 | } | ||
47 | ✗ | return sum >> 2; | |
48 | } | ||
49 | |||
50 | ✗ | static void add_8x8basis_c(int16_t rem[64], const int16_t basis[64], int scale) | |
51 | { | ||
52 | int i; | ||
53 | |||
54 | ✗ | for (i = 0; i < 8 * 8; i++) | |
55 | ✗ | rem[i] += (basis[i] * scale + | |
56 | ✗ | (1 << (BASIS_SHIFT - RECON_SHIFT - 1))) >> | |
57 | (BASIS_SHIFT - RECON_SHIFT); | ||
58 | ✗ | } | |
59 | |||
60 | 4312900 | static int pix_sum_c(const uint8_t *pix, int line_size) | |
61 | { | ||
62 | 4312900 | int s = 0, i, j; | |
63 | |||
64 |
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73319300 | for (i = 0; i < 16; i++) { |
65 |
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207019200 | for (j = 0; j < 16; j += 8) { |
66 | 138012800 | s += pix[0]; | |
67 | 138012800 | s += pix[1]; | |
68 | 138012800 | s += pix[2]; | |
69 | 138012800 | s += pix[3]; | |
70 | 138012800 | s += pix[4]; | |
71 | 138012800 | s += pix[5]; | |
72 | 138012800 | s += pix[6]; | |
73 | 138012800 | s += pix[7]; | |
74 | 138012800 | pix += 8; | |
75 | } | ||
76 | 69006400 | pix += line_size - 16; | |
77 | } | ||
78 | 4312900 | return s; | |
79 | } | ||
80 | |||
81 | 4312900 | static int pix_norm1_c(const uint8_t *pix, int line_size) | |
82 | { | ||
83 | 4312900 | int s = 0, i, j; | |
84 | 4312900 | const uint32_t *sq = ff_square_tab + 256; | |
85 | |||
86 |
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73319300 | for (i = 0; i < 16; i++) { |
87 |
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207019200 | for (j = 0; j < 16; j += 8) { |
88 | #if HAVE_FAST_64BIT | ||
89 | 138012800 | register uint64_t x = *(uint64_t *) pix; | |
90 | 138012800 | s += sq[x & 0xff]; | |
91 | 138012800 | s += sq[(x >> 8) & 0xff]; | |
92 | 138012800 | s += sq[(x >> 16) & 0xff]; | |
93 | 138012800 | s += sq[(x >> 24) & 0xff]; | |
94 | 138012800 | s += sq[(x >> 32) & 0xff]; | |
95 | 138012800 | s += sq[(x >> 40) & 0xff]; | |
96 | 138012800 | s += sq[(x >> 48) & 0xff]; | |
97 | 138012800 | s += sq[(x >> 56) & 0xff]; | |
98 | #else | ||
99 | register uint32_t x = *(uint32_t *) pix; | ||
100 | s += sq[x & 0xff]; | ||
101 | s += sq[(x >> 8) & 0xff]; | ||
102 | s += sq[(x >> 16) & 0xff]; | ||
103 | s += sq[(x >> 24) & 0xff]; | ||
104 | x = *(uint32_t *) (pix + 4); | ||
105 | s += sq[x & 0xff]; | ||
106 | s += sq[(x >> 8) & 0xff]; | ||
107 | s += sq[(x >> 16) & 0xff]; | ||
108 | s += sq[(x >> 24) & 0xff]; | ||
109 | #endif | ||
110 | 138012800 | pix += 8; | |
111 | } | ||
112 | 69006400 | pix += line_size - 16; | |
113 | } | ||
114 | 4312900 | return s; | |
115 | } | ||
116 | |||
117 | /* draw the edges of width 'w' of an image of size width, height */ | ||
118 | // FIXME: Check that this is OK for MPEG-4 interlaced. | ||
119 | 20931 | static void draw_edges_8_c(uint8_t *buf, int wrap, int width, int height, | |
120 | int w, int h, int sides) | ||
121 | { | ||
122 | 20931 | uint8_t *ptr = buf, *last_line; | |
123 | int i; | ||
124 | |||
125 | /* left and right */ | ||
126 |
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2158115 | for (i = 0; i < height; i++) { |
127 | 2137184 | memset(ptr - w, ptr[0], w); | |
128 | 2137184 | memset(ptr + width, ptr[width - 1], w); | |
129 | 2137184 | ptr += wrap; | |
130 | } | ||
131 | |||
132 | /* top and bottom + corners */ | ||
133 | 20931 | buf -= w; | |
134 | 20931 | last_line = buf + (height - 1) * wrap; | |
135 |
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20931 | if (sides & EDGE_TOP) |
136 |
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151129 | for (i = 0; i < h; i++) |
137 | // top | ||
138 | 138136 | memcpy(buf - (i + 1) * wrap, buf, width + w + w); | |
139 |
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20931 | if (sides & EDGE_BOTTOM) |
140 |
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253339 | for (i = 0; i < h; i++) |
141 | // bottom | ||
142 | 232408 | memcpy(last_line + (i + 1) * wrap, last_line, width + w + w); | |
143 | 20931 | } | |
144 | |||
145 | /* 2x2 -> 1x1 */ | ||
146 | ✗ | static void shrink22(uint8_t *dst, int dst_wrap, | |
147 | const uint8_t *src, int src_wrap, | ||
148 | int width, int height) | ||
149 | { | ||
150 | int w; | ||
151 | const uint8_t *s1, *s2; | ||
152 | uint8_t *d; | ||
153 | |||
154 | ✗ | for (; height > 0; height--) { | |
155 | ✗ | s1 = src; | |
156 | ✗ | s2 = s1 + src_wrap; | |
157 | ✗ | d = dst; | |
158 | ✗ | for (w = width; w >= 4; w -= 4) { | |
159 | ✗ | d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2; | |
160 | ✗ | d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2; | |
161 | ✗ | d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2; | |
162 | ✗ | d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2; | |
163 | ✗ | s1 += 8; | |
164 | ✗ | s2 += 8; | |
165 | ✗ | d += 4; | |
166 | } | ||
167 | ✗ | for (; w > 0; w--) { | |
168 | ✗ | d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2; | |
169 | ✗ | s1 += 2; | |
170 | ✗ | s2 += 2; | |
171 | ✗ | d++; | |
172 | } | ||
173 | ✗ | src += 2 * src_wrap; | |
174 | ✗ | dst += dst_wrap; | |
175 | } | ||
176 | ✗ | } | |
177 | |||
178 | /* 4x4 -> 1x1 */ | ||
179 | ✗ | static void shrink44(uint8_t *dst, int dst_wrap, | |
180 | const uint8_t *src, int src_wrap, | ||
181 | int width, int height) | ||
182 | { | ||
183 | int w; | ||
184 | const uint8_t *s1, *s2, *s3, *s4; | ||
185 | uint8_t *d; | ||
186 | |||
187 | ✗ | for (; height > 0; height--) { | |
188 | ✗ | s1 = src; | |
189 | ✗ | s2 = s1 + src_wrap; | |
190 | ✗ | s3 = s2 + src_wrap; | |
191 | ✗ | s4 = s3 + src_wrap; | |
192 | ✗ | d = dst; | |
193 | ✗ | for (w = width; w > 0; w--) { | |
194 | ✗ | d[0] = (s1[0] + s1[1] + s1[2] + s1[3] + | |
195 | ✗ | s2[0] + s2[1] + s2[2] + s2[3] + | |
196 | ✗ | s3[0] + s3[1] + s3[2] + s3[3] + | |
197 | ✗ | s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4; | |
198 | ✗ | s1 += 4; | |
199 | ✗ | s2 += 4; | |
200 | ✗ | s3 += 4; | |
201 | ✗ | s4 += 4; | |
202 | ✗ | d++; | |
203 | } | ||
204 | ✗ | src += 4 * src_wrap; | |
205 | ✗ | dst += dst_wrap; | |
206 | } | ||
207 | ✗ | } | |
208 | |||
209 | /* 8x8 -> 1x1 */ | ||
210 | ✗ | static void shrink88(uint8_t *dst, int dst_wrap, | |
211 | const uint8_t *src, int src_wrap, | ||
212 | int width, int height) | ||
213 | { | ||
214 | int w, i; | ||
215 | |||
216 | ✗ | for (; height > 0; height--) { | |
217 | ✗ | for(w = width;w > 0; w--) { | |
218 | ✗ | int tmp = 0; | |
219 | ✗ | for (i = 0; i < 8; i++) { | |
220 | ✗ | tmp += src[0] + src[1] + src[2] + src[3] + | |
221 | ✗ | src[4] + src[5] + src[6] + src[7]; | |
222 | ✗ | src += src_wrap; | |
223 | } | ||
224 | ✗ | *(dst++) = (tmp + 32) >> 6; | |
225 | ✗ | src += 8 - 8 * src_wrap; | |
226 | } | ||
227 | ✗ | src += 8 * src_wrap - 8 * width; | |
228 | ✗ | dst += dst_wrap - width; | |
229 | } | ||
230 | ✗ | } | |
231 | |||
232 | 359 | av_cold void ff_mpegvideoencdsp_init(MpegvideoEncDSPContext *c, | |
233 | AVCodecContext *avctx) | ||
234 | { | ||
235 | 359 | c->try_8x8basis = try_8x8basis_c; | |
236 | 359 | c->add_8x8basis = add_8x8basis_c; | |
237 | |||
238 | 359 | c->shrink[0] = av_image_copy_plane; | |
239 | 359 | c->shrink[1] = shrink22; | |
240 | 359 | c->shrink[2] = shrink44; | |
241 | 359 | c->shrink[3] = shrink88; | |
242 | |||
243 | 359 | c->pix_sum = pix_sum_c; | |
244 | 359 | c->pix_norm1 = pix_norm1_c; | |
245 | |||
246 | 359 | c->draw_edges = draw_edges_8_c; | |
247 | |||
248 | #if ARCH_ARM | ||
249 | ff_mpegvideoencdsp_init_arm(c, avctx); | ||
250 | #elif ARCH_PPC | ||
251 | ff_mpegvideoencdsp_init_ppc(c, avctx); | ||
252 | #elif ARCH_X86 | ||
253 | 359 | ff_mpegvideoencdsp_init_x86(c, avctx); | |
254 | #elif ARCH_MIPS | ||
255 | ff_mpegvideoencdsp_init_mips(c, avctx); | ||
256 | #endif | ||
257 | 359 | } | |
258 |