FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/x86/mpegvideoenc_template.c
Date: 2026-06-06 23:19:07
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Lines: 73 169 43.2%
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1 /*
2 * MPEG video DCT template
3 *
4 * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #include <stdint.h>
24
25 #include "libavutil/internal.h"
26 #include "libavutil/mem_internal.h"
27 #include "libavutil/x86/asm.h"
28 #include "libavcodec/mathops.h"
29 #include "libavcodec/mpegutils.h"
30 #include "libavcodec/mpegvideoenc.h"
31 #include "fdct.h"
32 #include "mpegvideoencdsp.h"
33
34 #undef SPREADW
35 #undef PMAX
36 #undef SAVE_SIGN
37 #undef RESTORE_SIGN
38
39 #define SPREADW(a) \
40 "pshuflw $0, "a", "a" \n\t"\
41 "punpcklwd "a", "a" \n\t"
42 #define PMAX(a,b) \
43 "movhlps "a", "b" \n\t"\
44 "pmaxsw "b", "a" \n\t"\
45 "pshuflw $0x0E, "a", "b" \n\t"\
46 "pmaxsw "b", "a" \n\t"\
47 "pshuflw $0x01, "a", "b" \n\t"\
48 "pmaxsw "b", "a" \n\t"
49
50 #if COMPILE_TEMPLATE_SSSE3
51 #define SAVE_SIGN(a,b) \
52 "movdqa "b", "a" \n\t"\
53 "pabsw "b", "b" \n\t"
54 #define RESTORE_SIGN(a,b) \
55 "psignw "a", "b" \n\t"
56 #else
57 #define SAVE_SIGN(a,b) \
58 "pxor "a", "a" \n\t"\
59 "pcmpgtw "b", "a" \n\t" /* block[i] <= 0 ? 0xFF : 0x00 */\
60 "pxor "a", "b" \n\t"\
61 "psubw "a", "b" \n\t" /* ABS(block[i]) */
62 #define RESTORE_SIGN(a,b) \
63 "pxor "a", "b" \n\t"\
64 "psubw "a", "b" \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
65 #endif
66
67 7770 static int RENAME(dct_quantize)(MPVEncContext *const s,
68 int16_t *block, int n,
69 int qscale, int *overflow)
70 {
71 x86_reg last_non_zero_p1;
72 7770 int level=0, q; //=0 is because gcc says uninitialized ...
73 const uint16_t *qmat;
74 7770 LOCAL_ALIGNED_16(int16_t, temp_block, [64]);
75
76 //s->fdct (block);
77 7770 ff_fdct_sse2(block); // cannot be anything else ...
78
79 7770 if (s->dct_error_sum) {
80 const int intra = s->c.mb_intra;
81 s->dct_count[intra]++;
82 #if HAVE_SSE2_EXTERNAL
83 ff_mpv_denoise_dct_sse2(block, s->dct_error_sum[intra], s->dct_offset[intra]);
84 #else
85 s->mpvencdsp.denoise_dct(block, s->dct_error_sum[intra], s->dct_offset[intra]);
86 #endif
87 }
88
89 7770 if (s->c.mb_intra) {
90 int dummy;
91 7770 if (n < 4){
92 5180 q = s->c.y_dc_scale;
93 5180 qmat = s->q_intra_matrix16[qscale][0];
94 }else{
95 2590 q = s->c.c_dc_scale;
96 2590 qmat = s->q_chroma_intra_matrix16[qscale][0];
97 }
98 /* note: block[0] is assumed to be positive */
99 7770 if (!s->c.h263_aic) {
100 7770 __asm__ volatile (
101 "mul %%ecx \n\t"
102 : "=d" (level), "=a"(dummy)
103 7770 : "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1])
104 );
105 } else
106 /* For AIC we skip quant/dequant of INTRADC */
107 level = (block[0] + 4)>>3;
108
109 7770 block[0]=0; //avoid fake overflow
110 // temp_block[0] = (block[0] + (q >> 1)) / q;
111 7770 last_non_zero_p1 = 1;
112 } else {
113 last_non_zero_p1 = 0;
114 qmat = s->q_inter_matrix16[qscale][0];
115 }
116
117 7770 if ((s->c.out_format == FMT_H263 || s->c.out_format == FMT_H261) && !s->mpeg_quant) {
118 3450 __asm__ volatile(
119 "movd %%"FF_REG_a", %%xmm3 \n\t" // last_non_zero_p1
120 SPREADW("%%xmm3")
121 "pxor %%xmm2, %%xmm2 \n\t" // 0
122 "pxor %%xmm4, %%xmm4 \n\t" // 0
123 "movdqa (%2), %%xmm5 \n\t" // qmat[0]
124 "pxor %%xmm6, %%xmm6 \n\t"
125 "psubw 128(%2), %%xmm6 \n\t" // -bias[0]
126 "mov $-128, %%"FF_REG_a" \n\t"
127 ".p2align 4 \n\t"
128 "1: \n\t"
129 "movdqa (%1, %%"FF_REG_a"), %%xmm0 \n\t" // block[i]
130 SAVE_SIGN("%%xmm1", "%%xmm0") // ABS(block[i])
131 "psubusw %%xmm6, %%xmm0 \n\t" // ABS(block[i]) + bias[0]
132 "pmulhw %%xmm5, %%xmm0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
133 "por %%xmm0, %%xmm4 \n\t"
134 RESTORE_SIGN("%%xmm1", "%%xmm0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
135 "movdqa %%xmm0, (%4, %0) \n\t"
136 "pcmpeqw %%xmm2, %%xmm0 \n\t" // out==0 ? 0xFF : 0x00
137 "movdqa (%3, %0), %%xmm1 \n\t"
138 "movdqa %%xmm2, (%1, %%"FF_REG_a") \n\t" // 0
139 "pandn %%xmm1, %%xmm0 \n\t"
140 "pmaxsw %%xmm0, %%xmm3 \n\t"
141 "add $16, %%"FF_REG_a" \n\t"
142 " js 1b \n\t"
143 PMAX("%%xmm3", "%%xmm0")
144 "movd %%xmm3, %%"FF_REG_a" \n\t"
145 "movzbl %%al, %%eax \n\t" // last_non_zero_p1
146 : "+a" (last_non_zero_p1)
147 3450 : "r" (block+64), "r" (qmat),
148 3450 "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64)
149 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
150 "%xmm4", "%xmm5", "%xmm6")
151 );
152 }else{ // FMT_H263
153 4320 __asm__ volatile(
154 "movd %%"FF_REG_a", %%xmm3 \n\t" // last_non_zero_p1
155 SPREADW("%%xmm3")
156 "pxor %%xmm2, %%xmm2 \n\t" // 0
157 "pxor %%xmm4, %%xmm4 \n\t" // 0
158 "mov $-128, %%"FF_REG_a" \n\t"
159 ".p2align 4 \n\t"
160 "1: \n\t"
161 "movdqa (%1, %%"FF_REG_a"), %%xmm0 \n\t" // block[i]
162 SAVE_SIGN("%%xmm1", "%%xmm0") // ABS(block[i])
163 "movdqa 128(%2, %0), %%xmm6 \n\t" // bias[i]
164 "paddusw %%xmm6, %%xmm0 \n\t" // ABS(block[i]) + bias[0]
165 "movdqa (%2, %%"FF_REG_a"), %%xmm5 \n\t" // qmat[i]
166 "pmulhw %%xmm5, %%xmm0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
167 "por %%xmm0, %%xmm4 \n\t"
168 RESTORE_SIGN("%%xmm1", "%%xmm0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
169 "movdqa %%xmm0, (%4, %0) \n\t"
170 "pcmpeqw %%xmm2, %%xmm0 \n\t" // out==0 ? 0xFF : 0x00
171 "movdqa (%3, %0), %%xmm1 \n\t"
172 "movdqa %%xmm2, (%1, %%"FF_REG_a") \n\t" // 0
173 "pandn %%xmm1, %%xmm0 \n\t"
174 "pmaxsw %%xmm0, %%xmm3 \n\t"
175 "add $16, %%"FF_REG_a" \n\t"
176 " js 1b \n\t"
177 PMAX("%%xmm3", "%%xmm0")
178 "movd %%xmm3, %%"FF_REG_a" \n\t"
179 "movzbl %%al, %%eax \n\t" // last_non_zero_p1
180 : "+a" (last_non_zero_p1)
181 4320 : "r" (block+64), "r" (qmat+64),
182 4320 "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64)
183 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
184 "%xmm4", "%xmm5", "%xmm6")
185 );
186 }
187 7770 __asm__ volatile(
188 "movd %1, %%xmm1 \n\t" // max_qcoeff
189 SPREADW("%%xmm1")
190 "psubusw %%xmm1, %%xmm4 \n\t"
191 "packuswb %%xmm4, %%xmm4 \n\t"
192 "packsswb %%xmm4, %%xmm4 \n\t"
193 "movd %%xmm4, %0 \n\t" // *overflow
194 : "=g" (*overflow)
195 7770 : "g" (s->max_qcoeff)
196 );
197
198 7770 block[0] = s->c.mb_intra ? level : temp_block[0];
199
200 av_assert2(ARCH_X86_32 || s->c.idsp.perm_type != FF_IDCT_PERM_SIMPLE);
201 if (ARCH_X86_32 && s->c.idsp.perm_type == FF_IDCT_PERM_SIMPLE) {
202 if(last_non_zero_p1 <= 1) goto end;
203 block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];
204 block[0x20] = temp_block[0x10];
205 if(last_non_zero_p1 <= 4) goto end;
206 block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02];
207 block[0x09] = temp_block[0x03];
208 if(last_non_zero_p1 <= 7) goto end;
209 block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11];
210 block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20];
211 if(last_non_zero_p1 <= 11) goto end;
212 block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12];
213 block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04];
214 block[0x0C] = temp_block[0x05];
215 if(last_non_zero_p1 <= 16) goto end;
216 block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13];
217 block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21];
218 block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30];
219 block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22];
220 if(last_non_zero_p1 <= 24) goto end;
221 block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14];
222 block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06];
223 block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E];
224 block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C];
225 if(last_non_zero_p1 <= 32) goto end;
226 block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A];
227 block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38];
228 block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32];
229 block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24];
230 if(last_non_zero_p1 <= 40) goto end;
231 block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16];
232 block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17];
233 block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25];
234 block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33];
235 if(last_non_zero_p1 <= 48) goto end;
236 block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
237 block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D];
238 block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
239 block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
240 if(last_non_zero_p1 <= 56) goto end;
241 block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C];
242 block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36];
243 block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37];
244 block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
245 7770 } else if (s->c.idsp.perm_type == FF_IDCT_PERM_LIBMPEG2) {
246 if(last_non_zero_p1 <= 1) goto end;
247 block[0x04] = temp_block[0x01];
248 block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
249 if(last_non_zero_p1 <= 4) goto end;
250 block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02];
251 block[0x05] = temp_block[0x03];
252 if(last_non_zero_p1 <= 7) goto end;
253 block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11];
254 block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
255 if(last_non_zero_p1 <= 11) goto end;
256 block[0x1C] = temp_block[0x19];
257 block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B];
258 block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05];
259 if(last_non_zero_p1 <= 16) goto end;
260 block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13];
261 block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21];
262 block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
263 block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22];
264 if(last_non_zero_p1 <= 24) goto end;
265 block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14];
266 block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06];
267 block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E];
268 block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C];
269 if(last_non_zero_p1 <= 32) goto end;
270 block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A];
271 block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38];
272 block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32];
273 block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24];
274 if(last_non_zero_p1 <= 40) goto end;
275 block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16];
276 block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
277 block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25];
278 block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33];
279 if(last_non_zero_p1 <= 48) goto end;
280 block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B];
281 block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D];
282 block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
283 block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E];
284 if(last_non_zero_p1 <= 56) goto end;
285 block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C];
286 block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36];
287 block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
288 block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
289 7770 } else if (s->c.idsp.perm_type == FF_IDCT_PERM_NONE) {
290 if(last_non_zero_p1 <= 1) goto end;
291 block[0x01] = temp_block[0x01];
292 block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
293 if(last_non_zero_p1 <= 4) goto end;
294 block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02];
295 block[0x03] = temp_block[0x03];
296 if(last_non_zero_p1 <= 7) goto end;
297 block[0x0A] = temp_block[0x0A]; block[0x11] = temp_block[0x11];
298 block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
299 if(last_non_zero_p1 <= 11) goto end;
300 block[0x19] = temp_block[0x19];
301 block[0x12] = temp_block[0x12]; block[0x0B] = temp_block[0x0B];
302 block[0x04] = temp_block[0x04]; block[0x05] = temp_block[0x05];
303 if(last_non_zero_p1 <= 16) goto end;
304 block[0x0C] = temp_block[0x0C]; block[0x13] = temp_block[0x13];
305 block[0x1A] = temp_block[0x1A]; block[0x21] = temp_block[0x21];
306 block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
307 block[0x29] = temp_block[0x29]; block[0x22] = temp_block[0x22];
308 if(last_non_zero_p1 <= 24) goto end;
309 block[0x1B] = temp_block[0x1B]; block[0x14] = temp_block[0x14];
310 block[0x0D] = temp_block[0x0D]; block[0x06] = temp_block[0x06];
311 block[0x07] = temp_block[0x07]; block[0x0E] = temp_block[0x0E];
312 block[0x15] = temp_block[0x15]; block[0x1C] = temp_block[0x1C];
313 if(last_non_zero_p1 <= 32) goto end;
314 block[0x23] = temp_block[0x23]; block[0x2A] = temp_block[0x2A];
315 block[0x31] = temp_block[0x31]; block[0x38] = temp_block[0x38];
316 block[0x39] = temp_block[0x39]; block[0x32] = temp_block[0x32];
317 block[0x2B] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
318 if(last_non_zero_p1 <= 40) goto end;
319 block[0x1D] = temp_block[0x1D]; block[0x16] = temp_block[0x16];
320 block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
321 block[0x1E] = temp_block[0x1E]; block[0x25] = temp_block[0x25];
322 block[0x2C] = temp_block[0x2C]; block[0x33] = temp_block[0x33];
323 if(last_non_zero_p1 <= 48) goto end;
324 block[0x3A] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
325 block[0x34] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
326 block[0x26] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
327 block[0x27] = temp_block[0x27]; block[0x2E] = temp_block[0x2E];
328 if(last_non_zero_p1 <= 56) goto end;
329 block[0x35] = temp_block[0x35]; block[0x3C] = temp_block[0x3C];
330 block[0x3D] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
331 block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
332 block[0x3E] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
333 7770 } else if (s->c.idsp.perm_type == FF_IDCT_PERM_TRANSPOSE) {
334 7770 if(last_non_zero_p1 <= 1) goto end;
335 3451 block[0x08] = temp_block[0x01];
336 3451 block[0x01] = temp_block[0x08]; block[0x02] = temp_block[0x10];
337 3451 if(last_non_zero_p1 <= 4) goto end;
338 3352 block[0x09] = temp_block[0x09]; block[0x10] = temp_block[0x02];
339 3352 block[0x18] = temp_block[0x03];
340 3352 if(last_non_zero_p1 <= 7) goto end;
341 3346 block[0x11] = temp_block[0x0A]; block[0x0A] = temp_block[0x11];
342 3346 block[0x03] = temp_block[0x18]; block[0x04] = temp_block[0x20];
343 3346 if(last_non_zero_p1 <= 11) goto end;
344 3324 block[0x0B] = temp_block[0x19];
345 3324 block[0x12] = temp_block[0x12]; block[0x19] = temp_block[0x0B];
346 3324 block[0x20] = temp_block[0x04]; block[0x28] = temp_block[0x05];
347 3324 if(last_non_zero_p1 <= 16) goto end;
348 3306 block[0x21] = temp_block[0x0C]; block[0x1A] = temp_block[0x13];
349 3306 block[0x13] = temp_block[0x1A]; block[0x0C] = temp_block[0x21];
350 3306 block[0x05] = temp_block[0x28]; block[0x06] = temp_block[0x30];
351 3306 block[0x0D] = temp_block[0x29]; block[0x14] = temp_block[0x22];
352 3306 if(last_non_zero_p1 <= 24) goto end;
353 3286 block[0x1B] = temp_block[0x1B]; block[0x22] = temp_block[0x14];
354 3286 block[0x29] = temp_block[0x0D]; block[0x30] = temp_block[0x06];
355 3286 block[0x38] = temp_block[0x07]; block[0x31] = temp_block[0x0E];
356 3286 block[0x2A] = temp_block[0x15]; block[0x23] = temp_block[0x1C];
357 3286 if(last_non_zero_p1 <= 32) goto end;
358 2478 block[0x1C] = temp_block[0x23]; block[0x15] = temp_block[0x2A];
359 2478 block[0x0E] = temp_block[0x31]; block[0x07] = temp_block[0x38];
360 2478 block[0x0F] = temp_block[0x39]; block[0x16] = temp_block[0x32];
361 2478 block[0x1D] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
362 2478 if(last_non_zero_p1 <= 40) goto end;
363 2054 block[0x2B] = temp_block[0x1D]; block[0x32] = temp_block[0x16];
364 2054 block[0x39] = temp_block[0x0F]; block[0x3A] = temp_block[0x17];
365 2054 block[0x33] = temp_block[0x1E]; block[0x2C] = temp_block[0x25];
366 2054 block[0x25] = temp_block[0x2C]; block[0x1E] = temp_block[0x33];
367 2054 if(last_non_zero_p1 <= 48) goto end;
368 1774 block[0x17] = temp_block[0x3A]; block[0x1F] = temp_block[0x3B];
369 1774 block[0x26] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
370 1774 block[0x34] = temp_block[0x26]; block[0x3B] = temp_block[0x1F];
371 1774 block[0x3C] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
372 1774 if(last_non_zero_p1 <= 56) goto end;
373 1413 block[0x2E] = temp_block[0x35]; block[0x27] = temp_block[0x3C];
374 1413 block[0x2F] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
375 1413 block[0x3D] = temp_block[0x2F]; block[0x3E] = temp_block[0x37];
376 1413 block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
377 } else {
378 av_log(s->c.avctx, AV_LOG_DEBUG, "s->c.idsp.perm_type: %d\n",
379 (int)s->c.idsp.perm_type);
380 av_assert0(s->c.idsp.perm_type == FF_IDCT_PERM_NONE ||
381 s->c.idsp.perm_type == FF_IDCT_PERM_LIBMPEG2 ||
382 s->c.idsp.perm_type == FF_IDCT_PERM_SIMPLE ||
383 s->c.idsp.perm_type == FF_IDCT_PERM_TRANSPOSE);
384 }
385 end:
386 7770 return last_non_zero_p1 - 1;
387 }
388