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1 : | edgomez | 965 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - MB Transfert/Quantization functions - | ||
5 : | * | ||
6 : | * Copyright(C) 2001-2003 Peter Ross <pross@xvid.org> | ||
7 : | * 2001-2003 Michael Militzer <isibaar@xvid.org> | ||
8 : | * 2003 Edouard Gomez <ed.gomez@free.fr> | ||
9 : | * | ||
10 : | * This program is free software ; you can redistribute it and/or modify | ||
11 : | * it under the terms of the GNU General Public License as published by | ||
12 : | * the Free Software Foundation ; either version 2 of the License, or | ||
13 : | * (at your option) any later version. | ||
14 : | * | ||
15 : | * This program is distributed in the hope that it will be useful, | ||
16 : | * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
17 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 : | * GNU General Public License for more details. | ||
19 : | * | ||
20 : | * You should have received a copy of the GNU General Public License | ||
21 : | * along with this program ; if not, write to the Free Software | ||
22 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
23 : | * | ||
24 : | edgomez | 982 | * $Id: mbtransquant.c,v 1.21.2.7 2003-04-10 13:05:54 edgomez Exp $ |
25 : | edgomez | 965 | * |
26 : | ****************************************************************************/ | ||
27 : | Isibaar | 3 | |
28 : | edgomez | 78 | #include <string.h> |
29 : | edgomez | 982 | #include <stdlib.h> |
30 : | edgomez | 78 | |
31 : | Isibaar | 3 | #include "../portab.h" |
32 : | #include "mbfunctions.h" | ||
33 : | |||
34 : | #include "../global.h" | ||
35 : | #include "mem_transfer.h" | ||
36 : | #include "timer.h" | ||
37 : | #include "../dct/fdct.h" | ||
38 : | #include "../dct/idct.h" | ||
39 : | #include "../quant/quant_mpeg4.h" | ||
40 : | #include "../quant/quant_h263.h" | ||
41 : | #include "../encoder.h" | ||
42 : | |||
43 : | edgomez | 851 | #include "../image/reduced.h" |
44 : | Isibaar | 3 | |
45 : | edgomez | 851 | MBFIELDTEST_PTR MBFieldTest; |
46 : | Isibaar | 3 | |
47 : | edgomez | 965 | /* |
48 : | * Skip blocks having a coefficient sum below this value. This value will be | ||
49 : | * corrected according to the MB quantizer to avoid artifacts for quant==1 | ||
50 : | */ | ||
51 : | #define PVOP_TOOSMALL_LIMIT 1 | ||
52 : | #define BVOP_TOOSMALL_LIMIT 3 | ||
53 : | Isibaar | 3 | |
54 : | edgomez | 965 | /***************************************************************************** |
55 : | * Local functions | ||
56 : | ****************************************************************************/ | ||
57 : | |||
58 : | /* permute block and return field dct choice */ | ||
59 : | static __inline uint32_t | ||
60 : | MBDecideFieldDCT(int16_t data[6 * 64]) | ||
61 : | Isibaar | 3 | { |
62 : | edgomez | 965 | uint32_t field = MBFieldTest(data); |
63 : | edgomez | 78 | |
64 : | edgomez | 965 | if (field) |
65 : | MBFrameToField(data); | ||
66 : | Isibaar | 3 | |
67 : | edgomez | 965 | return field; |
68 : | } | ||
69 : | h | 69 | |
70 : | edgomez | 965 | /* Performs Forward DCT on all blocks */ |
71 : | static __inline void | ||
72 : | MBfDCT(const MBParam * pParam, | ||
73 : | FRAMEINFO * frame, | ||
74 : | MACROBLOCK * pMB, | ||
75 : | uint32_t x_pos, | ||
76 : | uint32_t y_pos, | ||
77 : | int16_t data[6 * 64]) | ||
78 : | { | ||
79 : | /* Handles interlacing */ | ||
80 : | h | 69 | start_timer(); |
81 : | pMB->field_dct = 0; | ||
82 : | edgomez | 949 | if ((frame->vol_flags & XVID_VOL_INTERLACING) && |
83 : | h | 390 | (x_pos>0) && (x_pos<pParam->mb_width-1) && |
84 : | (y_pos>0) && (y_pos<pParam->mb_height-1)) { | ||
85 : | h | 69 | pMB->field_dct = MBDecideFieldDCT(data); |
86 : | } | ||
87 : | stop_interlacing_timer(); | ||
88 : | |||
89 : | edgomez | 965 | /* Perform DCT */ |
90 : | start_timer(); | ||
91 : | fdct(&data[0 * 64]); | ||
92 : | fdct(&data[1 * 64]); | ||
93 : | fdct(&data[2 * 64]); | ||
94 : | fdct(&data[3 * 64]); | ||
95 : | fdct(&data[4 * 64]); | ||
96 : | fdct(&data[5 * 64]); | ||
97 : | stop_dct_timer(); | ||
98 : | } | ||
99 : | |||
100 : | /* Performs Inverse DCT on all blocks */ | ||
101 : | static __inline void | ||
102 : | MBiDCT(int16_t data[6 * 64], | ||
103 : | const uint8_t cbp) | ||
104 : | { | ||
105 : | start_timer(); | ||
106 : | if(cbp & (1 << (5 - 0))) idct(&data[0 * 64]); | ||
107 : | if(cbp & (1 << (5 - 1))) idct(&data[1 * 64]); | ||
108 : | if(cbp & (1 << (5 - 2))) idct(&data[2 * 64]); | ||
109 : | if(cbp & (1 << (5 - 3))) idct(&data[3 * 64]); | ||
110 : | if(cbp & (1 << (5 - 4))) idct(&data[4 * 64]); | ||
111 : | if(cbp & (1 << (5 - 5))) idct(&data[5 * 64]); | ||
112 : | stop_idct_timer(); | ||
113 : | } | ||
114 : | |||
115 : | /* Quantize all blocks -- Intra mode */ | ||
116 : | static __inline void | ||
117 : | MBQuantIntra(const MBParam * pParam, | ||
118 : | const MACROBLOCK * pMB, | ||
119 : | int16_t qcoeff[6 * 64], | ||
120 : | int16_t data[6*64]) | ||
121 : | { | ||
122 : | int i; | ||
123 : | |||
124 : | edgomez | 195 | for (i = 0; i < 6; i++) { |
125 : | edgomez | 965 | uint32_t iDcScaler = get_dc_scaler(pMB->quant, i < 4); |
126 : | |||
127 : | /* Quantize the block */ | ||
128 : | start_timer(); | ||
129 : | if (!(pParam->vol_flags & XVID_VOL_MPEGQUANT)) | ||
130 : | quant_intra(&data[i * 64], &qcoeff[i * 64], pMB->quant, iDcScaler); | ||
131 : | else | ||
132 : | quant4_intra(&data[i * 64], &qcoeff[i * 64], pMB->quant, iDcScaler); | ||
133 : | stop_quant_timer(); | ||
134 : | } | ||
135 : | } | ||
136 : | |||
137 : | /* DeQuantize all blocks -- Intra mode */ | ||
138 : | static __inline void | ||
139 : | MBDeQuantIntra(const MBParam * pParam, | ||
140 : | const int iQuant, | ||
141 : | int16_t qcoeff[6 * 64], | ||
142 : | int16_t data[6*64]) | ||
143 : | { | ||
144 : | int i; | ||
145 : | |||
146 : | for (i = 0; i < 6; i++) { | ||
147 : | Isibaar | 3 | uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
148 : | |||
149 : | start_timer(); | ||
150 : | edgomez | 965 | if (!(pParam->vol_flags & XVID_VOL_MPEGQUANT)) |
151 : | dequant_intra(&qcoeff[i * 64], &data[i * 64], iQuant, iDcScaler); | ||
152 : | else | ||
153 : | dequant4_intra(&qcoeff[i * 64], &data[i * 64], iQuant, iDcScaler); | ||
154 : | stop_iquant_timer(); | ||
155 : | } | ||
156 : | } | ||
157 : | Isibaar | 3 | |
158 : | edgomez | 965 | /* Quantize all blocks -- Inter mode */ |
159 : | static __inline uint8_t | ||
160 : | MBQuantInter(const MBParam * pParam, | ||
161 : | const MACROBLOCK * pMB, | ||
162 : | int16_t data[6 * 64], | ||
163 : | int16_t qcoeff[6 * 64], | ||
164 : | int bvop, | ||
165 : | int limit) | ||
166 : | { | ||
167 : | |||
168 : | int i; | ||
169 : | uint8_t cbp = 0; | ||
170 : | int sum; | ||
171 : | int code_block; | ||
172 : | |||
173 : | for (i = 0; i < 6; i++) { | ||
174 : | |||
175 : | /* Quantize the block */ | ||
176 : | start_timer(); | ||
177 : | if (!(pParam->vol_flags & XVID_VOL_MPEGQUANT)) | ||
178 : | sum = quant_inter(&qcoeff[i * 64], &data[i * 64], pMB->quant); | ||
179 : | else | ||
180 : | sum = quant4_inter(&qcoeff[i * 64], &data[i * 64], pMB->quant); | ||
181 : | stop_quant_timer(); | ||
182 : | |||
183 : | /* | ||
184 : | * We code the block if the sum is higher than the limit and if the first | ||
185 : | * two AC coefficients in zig zag order are not zero. | ||
186 : | */ | ||
187 : | code_block = 0; | ||
188 : | if ((sum >= limit) || (qcoeff[i*64+1] != 0) || (qcoeff[i*64+8] != 0)) { | ||
189 : | code_block = 1; | ||
190 : | edgomez | 195 | } else { |
191 : | Isibaar | 3 | |
192 : | edgomez | 965 | if (bvop && (pMB->mode == MODE_DIRECT || pMB->mode == MODE_DIRECT_NO4V)) { |
193 : | /* dark blocks prevention for direct mode */ | ||
194 : | if ((qcoeff[i*64] < -1) || (qcoeff[i*64] > 0)) | ||
195 : | code_block = 1; | ||
196 : | edgomez | 851 | } else { |
197 : | edgomez | 965 | /* not direct mode */ |
198 : | if (qcoeff[i*64] != 0) | ||
199 : | code_block = 1; | ||
200 : | edgomez | 851 | } |
201 : | Isibaar | 3 | } |
202 : | |||
203 : | edgomez | 965 | /* Set the corresponding cbp bit */ |
204 : | cbp |= code_block << (5 - i); | ||
205 : | edgomez | 851 | |
206 : | edgomez | 965 | } |
207 : | edgomez | 851 | |
208 : | edgomez | 965 | return(cbp); |
209 : | } | ||
210 : | Isibaar | 3 | |
211 : | edgomez | 965 | /* DeQuantize all blocks -- Inter mode */ |
212 : | static __inline void | ||
213 : | MBDeQuantInter(const MBParam * pParam, | ||
214 : | const int iQuant, | ||
215 : | int16_t data[6 * 64], | ||
216 : | int16_t qcoeff[6 * 64], | ||
217 : | const uint8_t cbp) | ||
218 : | { | ||
219 : | int i; | ||
220 : | |||
221 : | for (i = 0; i < 6; i++) { | ||
222 : | if (cbp & (1 << (5 - i))) { | ||
223 : | start_timer(); | ||
224 : | if (!(pParam->vol_flags & XVID_VOL_MPEGQUANT)) | ||
225 : | dequant_inter(&data[i * 64], &qcoeff[i * 64], iQuant); | ||
226 : | else | ||
227 : | dequant4_inter(&data[i * 64], &qcoeff[i * 64], iQuant); | ||
228 : | stop_iquant_timer(); | ||
229 : | edgomez | 851 | } |
230 : | h | 69 | } |
231 : | Isibaar | 3 | } |
232 : | |||
233 : | edgomez | 965 | typedef void (transfer_operation_8to16_t) (int16_t *Dst, const uint8_t *Src, int BpS); |
234 : | typedef void (transfer_operation_16to8_t) (uint8_t *Dst, const int16_t *Src, int BpS); | ||
235 : | Isibaar | 3 | |
236 : | edgomez | 78 | |
237 : | edgomez | 965 | static __inline void |
238 : | MBTrans8to16(const MBParam * pParam, | ||
239 : | FRAMEINFO * frame, | ||
240 : | MACROBLOCK * pMB, | ||
241 : | const uint32_t x_pos, | ||
242 : | const uint32_t y_pos, | ||
243 : | int16_t data[6 * 64]) | ||
244 : | { | ||
245 : | h | 82 | uint32_t stride = pParam->edged_width; |
246 : | uint32_t stride2 = stride / 2; | ||
247 : | edgomez | 965 | uint32_t next_block = stride * 8; |
248 : | int32_t cst; | ||
249 : | Isibaar | 3 | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
250 : | edgomez | 195 | IMAGE *pCurrent = &frame->image; |
251 : | edgomez | 965 | transfer_operation_8to16_t *transfer_op = NULL; |
252 : | edgomez | 195 | |
253 : | edgomez | 965 | if ((frame->vop_flags & XVID_VOP_REDUCED)) { |
254 : | |||
255 : | /* Image pointers */ | ||
256 : | pY_Cur = pCurrent->y + (y_pos << 5) * stride + (x_pos << 5); | ||
257 : | edgomez | 851 | pU_Cur = pCurrent->u + (y_pos << 4) * stride2 + (x_pos << 4); |
258 : | pV_Cur = pCurrent->v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
259 : | edgomez | 965 | |
260 : | /* Block size */ | ||
261 : | cst = 16; | ||
262 : | |||
263 : | /* Operation function */ | ||
264 : | transfer_op = (transfer_operation_8to16_t*)filter_18x18_to_8x8; | ||
265 : | } else { | ||
266 : | |||
267 : | /* Image pointers */ | ||
268 : | pY_Cur = pCurrent->y + (y_pos << 4) * stride + (x_pos << 4); | ||
269 : | edgomez | 851 | pU_Cur = pCurrent->u + (y_pos << 3) * stride2 + (x_pos << 3); |
270 : | pV_Cur = pCurrent->v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
271 : | edgomez | 965 | |
272 : | /* Block size */ | ||
273 : | cst = 8; | ||
274 : | |||
275 : | /* Operation function */ | ||
276 : | transfer_op = (transfer_operation_8to16_t*)transfer_8to16copy; | ||
277 : | edgomez | 851 | } |
278 : | Isibaar | 3 | |
279 : | edgomez | 965 | /* Do the transfer */ |
280 : | h | 69 | start_timer(); |
281 : | edgomez | 965 | transfer_op(&data[0 * 64], pY_Cur, stride); |
282 : | transfer_op(&data[1 * 64], pY_Cur + cst, stride); | ||
283 : | transfer_op(&data[2 * 64], pY_Cur + next_block, stride); | ||
284 : | transfer_op(&data[3 * 64], pY_Cur + next_block + cst, stride); | ||
285 : | transfer_op(&data[4 * 64], pU_Cur, stride2); | ||
286 : | transfer_op(&data[5 * 64], pV_Cur, stride2); | ||
287 : | stop_transfer_timer(); | ||
288 : | } | ||
289 : | |||
290 : | static __inline void | ||
291 : | MBTrans16to8(const MBParam * pParam, | ||
292 : | FRAMEINFO * frame, | ||
293 : | MACROBLOCK * pMB, | ||
294 : | const uint32_t x_pos, | ||
295 : | const uint32_t y_pos, | ||
296 : | int16_t data[6 * 64], | ||
297 : | const uint32_t add, | ||
298 : | const uint8_t cbp) | ||
299 : | { | ||
300 : | uint8_t *pY_Cur, *pU_Cur, *pV_Cur; | ||
301 : | uint32_t stride = pParam->edged_width; | ||
302 : | uint32_t stride2 = stride / 2; | ||
303 : | uint32_t next_block = stride * 8; | ||
304 : | uint32_t cst; | ||
305 : | IMAGE *pCurrent = &frame->image; | ||
306 : | transfer_operation_16to8_t *transfer_op = NULL; | ||
307 : | |||
308 : | if (pMB->field_dct) { | ||
309 : | next_block = stride; | ||
310 : | stride *= 2; | ||
311 : | h | 69 | } |
312 : | |||
313 : | edgomez | 965 | if ((frame->vop_flags & XVID_VOP_REDUCED)) { |
314 : | edgomez | 851 | |
315 : | edgomez | 965 | /* Image pointers */ |
316 : | pY_Cur = pCurrent->y + (y_pos << 5) * stride + (x_pos << 5); | ||
317 : | pU_Cur = pCurrent->u + (y_pos << 4) * stride2 + (x_pos << 4); | ||
318 : | pV_Cur = pCurrent->v + (y_pos << 4) * stride2 + (x_pos << 4); | ||
319 : | Isibaar | 3 | |
320 : | edgomez | 965 | /* Block size */ |
321 : | cst = 16; | ||
322 : | Isibaar | 3 | |
323 : | edgomez | 965 | /* Operation function */ |
324 : | if(add) | ||
325 : | transfer_op = (transfer_operation_16to8_t*)add_upsampled_8x8_16to8; | ||
326 : | else | ||
327 : | transfer_op = (transfer_operation_16to8_t*)copy_upsampled_8x8_16to8; | ||
328 : | } else { | ||
329 : | Isibaar | 3 | |
330 : | edgomez | 965 | /* Image pointers */ |
331 : | pY_Cur = pCurrent->y + (y_pos << 4) * stride + (x_pos << 4); | ||
332 : | pU_Cur = pCurrent->u + (y_pos << 3) * stride2 + (x_pos << 3); | ||
333 : | pV_Cur = pCurrent->v + (y_pos << 3) * stride2 + (x_pos << 3); | ||
334 : | Isibaar | 3 | |
335 : | edgomez | 965 | /* Block size */ |
336 : | cst = 8; | ||
337 : | Isibaar | 3 | |
338 : | edgomez | 965 | /* Operation function */ |
339 : | if(add) | ||
340 : | transfer_op = (transfer_operation_16to8_t*)transfer_16to8add; | ||
341 : | else | ||
342 : | transfer_op = (transfer_operation_16to8_t*)transfer_16to8copy; | ||
343 : | Isibaar | 3 | } |
344 : | h | 69 | |
345 : | edgomez | 965 | /* Do the operation */ |
346 : | h | 69 | start_timer(); |
347 : | edgomez | 965 | if (cbp&32) transfer_op(pY_Cur, &data[0 * 64], stride); |
348 : | if (cbp&16) transfer_op(pY_Cur + cst, &data[1 * 64], stride); | ||
349 : | if (cbp& 8) transfer_op(pY_Cur + next_block, &data[2 * 64], stride); | ||
350 : | if (cbp& 4) transfer_op(pY_Cur + next_block + cst, &data[3 * 64], stride); | ||
351 : | if (cbp& 2) transfer_op(pU_Cur, &data[4 * 64], stride2); | ||
352 : | if (cbp& 1) transfer_op(pV_Cur, &data[5 * 64], stride2); | ||
353 : | h | 69 | stop_transfer_timer(); |
354 : | Isibaar | 3 | } |
355 : | h | 69 | |
356 : | edgomez | 965 | /***************************************************************************** |
357 : | * Module functions | ||
358 : | ****************************************************************************/ | ||
359 : | |||
360 : | chl | 368 | void |
361 : | edgomez | 965 | MBTransQuantIntra(const MBParam * pParam, |
362 : | chl | 368 | FRAMEINFO * frame, |
363 : | MACROBLOCK * pMB, | ||
364 : | const uint32_t x_pos, | ||
365 : | const uint32_t y_pos, | ||
366 : | int16_t data[6 * 64], | ||
367 : | int16_t qcoeff[6 * 64]) | ||
368 : | { | ||
369 : | h | 69 | |
370 : | edgomez | 965 | /* Transfer data */ |
371 : | MBTrans8to16(pParam, frame, pMB, x_pos, y_pos, data); | ||
372 : | chl | 368 | |
373 : | edgomez | 965 | /* Perform DCT (and field decision) */ |
374 : | MBfDCT(pParam, frame, pMB, x_pos, y_pos, data); | ||
375 : | chl | 368 | |
376 : | edgomez | 965 | /* Quantize the block */ |
377 : | MBQuantIntra(pParam, pMB, data, qcoeff); | ||
378 : | |||
379 : | /* DeQuantize the block */ | ||
380 : | MBDeQuantIntra(pParam, pMB->quant, data, qcoeff); | ||
381 : | |||
382 : | /* Perform inverse DCT*/ | ||
383 : | MBiDCT(data, 0x3F); | ||
384 : | |||
385 : | /* Transfer back the data -- Don't add data */ | ||
386 : | MBTrans16to8(pParam, frame, pMB, x_pos, y_pos, data, 0, 0x3F); | ||
387 : | chl | 368 | } |
388 : | |||
389 : | edgomez | 965 | |
390 : | chl | 368 | uint8_t |
391 : | edgomez | 965 | MBTransQuantInter(const MBParam * pParam, |
392 : | chl | 368 | FRAMEINFO * frame, |
393 : | MACROBLOCK * pMB, | ||
394 : | edgomez | 914 | const uint32_t x_pos, |
395 : | const uint32_t y_pos, | ||
396 : | chl | 368 | int16_t data[6 * 64], |
397 : | int16_t qcoeff[6 * 64]) | ||
398 : | { | ||
399 : | uint8_t cbp; | ||
400 : | edgomez | 965 | uint32_t limit; |
401 : | chl | 368 | |
402 : | edgomez | 914 | /* |
403 : | edgomez | 965 | * There is no MBTrans8to16 for Inter block, that's done in motion compensation |
404 : | * already | ||
405 : | edgomez | 914 | */ |
406 : | chl | 368 | |
407 : | edgomez | 965 | /* Perform DCT (and field decision) */ |
408 : | MBfDCT(pParam, frame, pMB, x_pos, y_pos, data); | ||
409 : | edgomez | 914 | |
410 : | edgomez | 965 | /* Set the limit threshold */ |
411 : | limit = PVOP_TOOSMALL_LIMIT + ((pMB->quant == 1)? 1 : 0); | ||
412 : | chl | 368 | |
413 : | edgomez | 965 | /* Quantize the block */ |
414 : | cbp = MBQuantInter(pParam, pMB, data, qcoeff, 0, limit); | ||
415 : | chl | 368 | |
416 : | edgomez | 965 | /* DeQuantize the block */ |
417 : | MBDeQuantInter(pParam, pMB->quant, data, qcoeff, cbp); | ||
418 : | chl | 368 | |
419 : | edgomez | 965 | /* Perform inverse DCT*/ |
420 : | MBiDCT(data, cbp); | ||
421 : | chl | 368 | |
422 : | edgomez | 965 | /* Transfer back the data -- Add the data */ |
423 : | MBTrans16to8(pParam, frame, pMB, x_pos, y_pos, data, 1, cbp); | ||
424 : | chl | 368 | |
425 : | edgomez | 965 | return(cbp); |
426 : | chl | 368 | } |
427 : | |||
428 : | edgomez | 965 | uint8_t |
429 : | MBTransQuantInterBVOP(const MBParam * pParam, | ||
430 : | chl | 368 | FRAMEINFO * frame, |
431 : | MACROBLOCK * pMB, | ||
432 : | const uint32_t x_pos, | ||
433 : | const uint32_t y_pos, | ||
434 : | int16_t data[6 * 64], | ||
435 : | edgomez | 965 | int16_t qcoeff[6 * 64]) |
436 : | chl | 368 | { |
437 : | edgomez | 965 | uint8_t cbp; |
438 : | uint32_t limit; | ||
439 : | |||
440 : | /* | ||
441 : | * There is no MBTrans8to16 for Inter block, that's done in motion compensation | ||
442 : | * already | ||
443 : | */ | ||
444 : | chl | 368 | |
445 : | edgomez | 965 | /* Perform DCT (and field decision) */ |
446 : | MBfDCT(pParam, frame, pMB, x_pos, y_pos, data); | ||
447 : | chl | 368 | |
448 : | edgomez | 965 | /* Set the limit threshold */ |
449 : | limit = BVOP_TOOSMALL_LIMIT; | ||
450 : | chl | 368 | |
451 : | edgomez | 965 | /* Quantize the block */ |
452 : | cbp = MBQuantInter(pParam, pMB, data, qcoeff, 1, limit); | ||
453 : | chl | 368 | |
454 : | edgomez | 965 | /* |
455 : | * History comment: | ||
456 : | * We don't have to DeQuant, iDCT and Transfer back data for B-frames. | ||
457 : | * | ||
458 : | * BUT some plugins require the original frame to be passed so we have | ||
459 : | * to take care of that here | ||
460 : | */ | ||
461 : | if((pParam->plugin_flags & XVID_REQORIGINAL)) { | ||
462 : | chl | 368 | |
463 : | edgomez | 965 | /* DeQuantize the block */ |
464 : | MBDeQuantInter(pParam, pMB->quant, data, qcoeff, cbp); | ||
465 : | chl | 368 | |
466 : | edgomez | 965 | /* Perform inverse DCT*/ |
467 : | MBiDCT(data, cbp); | ||
468 : | h | 69 | |
469 : | edgomez | 965 | /* Transfer back the data -- Add the data */ |
470 : | MBTrans16to8(pParam, frame, pMB, x_pos, y_pos, data, 1, cbp); | ||
471 : | edgomez | 851 | } |
472 : | |||
473 : | edgomez | 965 | return(cbp); |
474 : | edgomez | 851 | } |
475 : | |||
476 : | /* if sum(diff between field lines) < sum(diff between frame lines), use field dct */ | ||
477 : | uint32_t | ||
478 : | MBFieldTest_c(int16_t data[6 * 64]) | ||
479 : | { | ||
480 : | edgomez | 195 | const uint8_t blocks[] = |
481 : | { 0 * 64, 0 * 64, 0 * 64, 0 * 64, 2 * 64, 2 * 64, 2 * 64, 2 * 64 }; | ||
482 : | const uint8_t lines[] = { 0, 16, 32, 48, 0, 16, 32, 48 }; | ||
483 : | edgomez | 78 | |
484 : | h | 69 | int frame = 0, field = 0; |
485 : | int i, j; | ||
486 : | |||
487 : | edgomez | 195 | for (i = 0; i < 7; ++i) { |
488 : | for (j = 0; j < 8; ++j) { | ||
489 : | frame += | ||
490 : | edgomez | 982 | abs(data[0 * 64 + (i + 1) * 8 + j] - data[0 * 64 + i * 8 + j]); |
491 : | edgomez | 195 | frame += |
492 : | edgomez | 982 | abs(data[1 * 64 + (i + 1) * 8 + j] - data[1 * 64 + i * 8 + j]); |
493 : | edgomez | 195 | frame += |
494 : | edgomez | 982 | abs(data[2 * 64 + (i + 1) * 8 + j] - data[2 * 64 + i * 8 + j]); |
495 : | edgomez | 195 | frame += |
496 : | edgomez | 982 | abs(data[3 * 64 + (i + 1) * 8 + j] - data[3 * 64 + i * 8 + j]); |
497 : | h | 69 | |
498 : | edgomez | 195 | field += |
499 : | edgomez | 982 | abs(data[blocks[i + 1] + lines[i + 1] + j] - |
500 : | edgomez | 195 | data[blocks[i] + lines[i] + j]); |
501 : | field += | ||
502 : | edgomez | 982 | abs(data[blocks[i + 1] + lines[i + 1] + 8 + j] - |
503 : | edgomez | 195 | data[blocks[i] + lines[i] + 8 + j]); |
504 : | field += | ||
505 : | edgomez | 982 | abs(data[blocks[i + 1] + 64 + lines[i + 1] + j] - |
506 : | edgomez | 195 | data[blocks[i] + 64 + lines[i] + j]); |
507 : | field += | ||
508 : | edgomez | 982 | abs(data[blocks[i + 1] + 64 + lines[i + 1] + 8 + j] - |
509 : | edgomez | 195 | data[blocks[i] + 64 + lines[i] + 8 + j]); |
510 : | h | 69 | } |
511 : | } | ||
512 : | |||
513 : | edgomez | 851 | return (frame >= (field + 350)); |
514 : | h | 69 | } |
515 : | |||
516 : | |||
517 : | /* deinterlace Y blocks vertically */ | ||
518 : | |||
519 : | #define MOVLINE(X,Y) memcpy(X, Y, sizeof(tmp)) | ||
520 : | edgomez | 78 | #define LINE(X,Y) &data[X*64 + Y*8] |
521 : | h | 69 | |
522 : | edgomez | 195 | void |
523 : | MBFrameToField(int16_t data[6 * 64]) | ||
524 : | h | 69 | { |
525 : | int16_t tmp[8]; | ||
526 : | |||
527 : | /* left blocks */ | ||
528 : | |||
529 : | edgomez | 851 | // 1=2, 2=4, 4=8, 8=1 |
530 : | edgomez | 195 | MOVLINE(tmp, LINE(0, 1)); |
531 : | MOVLINE(LINE(0, 1), LINE(0, 2)); | ||
532 : | MOVLINE(LINE(0, 2), LINE(0, 4)); | ||
533 : | MOVLINE(LINE(0, 4), LINE(2, 0)); | ||
534 : | MOVLINE(LINE(2, 0), tmp); | ||
535 : | h | 69 | |
536 : | edgomez | 851 | // 3=6, 6=12, 12=9, 9=3 |
537 : | edgomez | 195 | MOVLINE(tmp, LINE(0, 3)); |
538 : | MOVLINE(LINE(0, 3), LINE(0, 6)); | ||
539 : | MOVLINE(LINE(0, 6), LINE(2, 4)); | ||
540 : | MOVLINE(LINE(2, 4), LINE(2, 1)); | ||
541 : | MOVLINE(LINE(2, 1), tmp); | ||
542 : | h | 69 | |
543 : | edgomez | 851 | // 5=10, 10=5 |
544 : | edgomez | 195 | MOVLINE(tmp, LINE(0, 5)); |
545 : | MOVLINE(LINE(0, 5), LINE(2, 2)); | ||
546 : | MOVLINE(LINE(2, 2), tmp); | ||
547 : | h | 69 | |
548 : | edgomez | 851 | // 7=14, 14=13, 13=11, 11=7 |
549 : | edgomez | 195 | MOVLINE(tmp, LINE(0, 7)); |
550 : | MOVLINE(LINE(0, 7), LINE(2, 6)); | ||
551 : | MOVLINE(LINE(2, 6), LINE(2, 5)); | ||
552 : | MOVLINE(LINE(2, 5), LINE(2, 3)); | ||
553 : | MOVLINE(LINE(2, 3), tmp); | ||
554 : | h | 69 | |
555 : | /* right blocks */ | ||
556 : | |||
557 : | edgomez | 851 | // 1=2, 2=4, 4=8, 8=1 |
558 : | edgomez | 195 | MOVLINE(tmp, LINE(1, 1)); |
559 : | MOVLINE(LINE(1, 1), LINE(1, 2)); | ||
560 : | MOVLINE(LINE(1, 2), LINE(1, 4)); | ||
561 : | MOVLINE(LINE(1, 4), LINE(3, 0)); | ||
562 : | MOVLINE(LINE(3, 0), tmp); | ||
563 : | h | 69 | |
564 : | edgomez | 851 | // 3=6, 6=12, 12=9, 9=3 |
565 : | edgomez | 195 | MOVLINE(tmp, LINE(1, 3)); |
566 : | MOVLINE(LINE(1, 3), LINE(1, 6)); | ||
567 : | MOVLINE(LINE(1, 6), LINE(3, 4)); | ||
568 : | MOVLINE(LINE(3, 4), LINE(3, 1)); | ||
569 : | MOVLINE(LINE(3, 1), tmp); | ||
570 : | h | 69 | |
571 : | edgomez | 851 | // 5=10, 10=5 |
572 : | edgomez | 195 | MOVLINE(tmp, LINE(1, 5)); |
573 : | MOVLINE(LINE(1, 5), LINE(3, 2)); | ||
574 : | MOVLINE(LINE(3, 2), tmp); | ||
575 : | h | 69 | |
576 : | edgomez | 851 | // 7=14, 14=13, 13=11, 11=7 |
577 : | edgomez | 195 | MOVLINE(tmp, LINE(1, 7)); |
578 : | MOVLINE(LINE(1, 7), LINE(3, 6)); | ||
579 : | MOVLINE(LINE(3, 6), LINE(3, 5)); | ||
580 : | MOVLINE(LINE(3, 5), LINE(3, 3)); | ||
581 : | MOVLINE(LINE(3, 3), tmp); | ||
582 : | h | 69 | } |
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