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mpegvideoenc_template.c
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1 /*
2  * MPEG video DCT template
3  *
4  * Copyright (c) 2002 Michael Niedermayer <[email protected]>
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 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  int level=0, q; //=0 is because gcc says uninitialized ...
73  const uint16_t *qmat;
74  LOCAL_ALIGNED_16(int16_t, temp_block, [64]);
75 
76  //s->fdct (block);
77  ff_fdct_sse2(block); // cannot be anything else ...
78 
79  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  if (s->c.mb_intra) {
90  int dummy;
91  if (n < 4){
92  q = s->c.y_dc_scale;
93  qmat = s->q_intra_matrix16[qscale][0];
94  }else{
95  q = s->c.c_dc_scale;
96  qmat = s->q_chroma_intra_matrix16[qscale][0];
97  }
98  /* note: block[0] is assumed to be positive */
99  if (!s->c.h263_aic) {
100  __asm__ volatile (
101  "mul %%ecx \n\t"
102  : "=d" (level), "=a"(dummy)
103  : "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  block[0]=0; //avoid fake overflow
110 // temp_block[0] = (block[0] + (q >> 1)) / q;
111  last_non_zero_p1 = 1;
112  } else {
113  last_non_zero_p1 = 0;
114  qmat = s->q_inter_matrix16[qscale][0];
115  }
116 
117  if ((s->c.out_format == FMT_H263 || s->c.out_format == FMT_H261) && !s->mpeg_quant) {
118  __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  : "r" (block+64), "r" (qmat),
148  "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  __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  : "r" (block+64), "r" (qmat+64),
182  "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64)
183  XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
184  "%xmm4", "%xmm5", "%xmm6")
185  );
186  }
187  __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  : "g" (s->max_qcoeff)
196  );
197 
198  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  } 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  } 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  } else if (s->c.idsp.perm_type == FF_IDCT_PERM_TRANSPOSE) {
334  if(last_non_zero_p1 <= 1) goto end;
335  block[0x08] = temp_block[0x01];
336  block[0x01] = temp_block[0x08]; block[0x02] = temp_block[0x10];
337  if(last_non_zero_p1 <= 4) goto end;
338  block[0x09] = temp_block[0x09]; block[0x10] = temp_block[0x02];
339  block[0x18] = temp_block[0x03];
340  if(last_non_zero_p1 <= 7) goto end;
341  block[0x11] = temp_block[0x0A]; block[0x0A] = temp_block[0x11];
342  block[0x03] = temp_block[0x18]; block[0x04] = temp_block[0x20];
343  if(last_non_zero_p1 <= 11) goto end;
344  block[0x0B] = temp_block[0x19];
345  block[0x12] = temp_block[0x12]; block[0x19] = temp_block[0x0B];
346  block[0x20] = temp_block[0x04]; block[0x28] = temp_block[0x05];
347  if(last_non_zero_p1 <= 16) goto end;
348  block[0x21] = temp_block[0x0C]; block[0x1A] = temp_block[0x13];
349  block[0x13] = temp_block[0x1A]; block[0x0C] = temp_block[0x21];
350  block[0x05] = temp_block[0x28]; block[0x06] = temp_block[0x30];
351  block[0x0D] = temp_block[0x29]; block[0x14] = temp_block[0x22];
352  if(last_non_zero_p1 <= 24) goto end;
353  block[0x1B] = temp_block[0x1B]; block[0x22] = temp_block[0x14];
354  block[0x29] = temp_block[0x0D]; block[0x30] = temp_block[0x06];
355  block[0x38] = temp_block[0x07]; block[0x31] = temp_block[0x0E];
356  block[0x2A] = temp_block[0x15]; block[0x23] = temp_block[0x1C];
357  if(last_non_zero_p1 <= 32) goto end;
358  block[0x1C] = temp_block[0x23]; block[0x15] = temp_block[0x2A];
359  block[0x0E] = temp_block[0x31]; block[0x07] = temp_block[0x38];
360  block[0x0F] = temp_block[0x39]; block[0x16] = temp_block[0x32];
361  block[0x1D] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
362  if(last_non_zero_p1 <= 40) goto end;
363  block[0x2B] = temp_block[0x1D]; block[0x32] = temp_block[0x16];
364  block[0x39] = temp_block[0x0F]; block[0x3A] = temp_block[0x17];
365  block[0x33] = temp_block[0x1E]; block[0x2C] = temp_block[0x25];
366  block[0x25] = temp_block[0x2C]; block[0x1E] = temp_block[0x33];
367  if(last_non_zero_p1 <= 48) goto end;
368  block[0x17] = temp_block[0x3A]; block[0x1F] = temp_block[0x3B];
369  block[0x26] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
370  block[0x34] = temp_block[0x26]; block[0x3B] = temp_block[0x1F];
371  block[0x3C] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
372  if(last_non_zero_p1 <= 56) goto end;
373  block[0x2E] = temp_block[0x35]; block[0x27] = temp_block[0x3C];
374  block[0x2F] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
375  block[0x3D] = temp_block[0x2F]; block[0x3E] = temp_block[0x37];
376  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  return last_non_zero_p1 - 1;
387 }
level
uint8_t level
Definition: svq3.c:208
MPVEncContext
Definition: mpegvideoenc.h:46
mem_internal.h
x86_reg
int x86_reg
Definition: asm.h:71
mpegvideoenc.h
fdct.h
FMT_H261
@ FMT_H261
Definition: mpegvideo.h:56
mpegutils.h
ff_inverse
const uint32_t ff_inverse[257]
Definition: mathtables.c:66
dummy
static int dummy
Definition: ffplay.c:3751
ff_fdct_sse2
void ff_fdct_sse2(int16_t *block)
s
#define s(width, name)
Definition: cbs_vp9.c:198
LOCAL_ALIGNED_16
#define LOCAL_ALIGNED_16(t, v,...)
Definition: mem_internal.h:130
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:42
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:231
FMT_H263
@ FMT_H263
Definition: mpegvideo.h:57
asm.h
mathops.h
SAVE_SIGN
#define SAVE_SIGN(a, b)
Definition: mpegvideoenc_template.c:57
FF_IDCT_PERM_NONE
@ FF_IDCT_PERM_NONE
Definition: idctdsp.h:28
SPREADW
#define SPREADW(a)
Definition: mpegvideoenc_template.c:39
mpegvideoencdsp.h
av_assert2
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:68
internal.h
PMAX
#define PMAX(a, b)
Definition: mpegvideoenc_template.c:42
__asm__
__asm__(".macro parse_r var r\n\t" "\\var = -1\n\t" _IFC_REG(0) _IFC_REG(1) _IFC_REG(2) _IFC_REG(3) _IFC_REG(4) _IFC_REG(5) _IFC_REG(6) _IFC_REG(7) _IFC_REG(8) _IFC_REG(9) _IFC_REG(10) _IFC_REG(11) _IFC_REG(12) _IFC_REG(13) _IFC_REG(14) _IFC_REG(15) _IFC_REG(16) _IFC_REG(17) _IFC_REG(18) _IFC_REG(19) _IFC_REG(20) _IFC_REG(21) _IFC_REG(22) _IFC_REG(23) _IFC_REG(24) _IFC_REG(25) _IFC_REG(26) _IFC_REG(27) _IFC_REG(28) _IFC_REG(29) _IFC_REG(30) _IFC_REG(31) ".iflt \\var\n\t" ".error \"Unable to parse register name \\r\"\n\t" ".endif\n\t" ".endm")
FF_IDCT_PERM_TRANSPOSE
@ FF_IDCT_PERM_TRANSPOSE
Definition: idctdsp.h:31
ff_mpv_denoise_dct_sse2
EXTERN void ff_mpv_denoise_dct_sse2(int16_t block[64], int dct_error_sum[64], const uint16_t dct_offset[64])
RENAME
#define RENAME(element)
Definition: ac3enc_template.c:44
XMM_CLOBBERS_ONLY
#define XMM_CLOBBERS_ONLY(...)
Definition: asm.h:98
overflow
Undefined Behavior In the C some operations are like signed integer overflow
Definition: undefined.txt:3
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
FF_IDCT_PERM_SIMPLE
@ FF_IDCT_PERM_SIMPLE
Definition: idctdsp.h:30
FF_IDCT_PERM_LIBMPEG2
@ FF_IDCT_PERM_LIBMPEG2
Definition: idctdsp.h:29
inv_zigzag_direct16
static const uint16_t inv_zigzag_direct16[64]
Definition: mpegvideoenc.c:31
RESTORE_SIGN
#define RESTORE_SIGN(a, b)
Definition: mpegvideoenc_template.c:62
Generated on Tue May 12 2026 19:22:54 for FFmpeg by   doxygen 1.8.17