32 |
* |
* |
33 |
* History: |
* History: |
34 |
* |
* |
35 |
|
* 15.07.2002 fix a bug in B-frame decode at DIRECT mode |
36 |
|
* MinChen <chenm001@163.com> |
37 |
|
* 10.07.2002 added BFRAMES_DEC_DEBUG support |
38 |
|
* Fix a little bug for low_delay flage |
39 |
|
* MinChen <chenm001@163.com> |
40 |
|
* 28.06.2002 added basic resync support to iframe/pframe_decode() |
41 |
|
* 22.06.2002 added primative N_VOP support |
42 |
|
* #define BFRAMES_DEC now enables Minchen's bframe decoder |
43 |
* 08.05.2002 add low_delay support for B_VOP decode |
* 08.05.2002 add low_delay support for B_VOP decode |
44 |
* MinChen <chenm001@163.com> |
* MinChen <chenm001@163.com> |
45 |
* 05.05.2002 fix some B-frame decode problem |
* 05.05.2002 fix some B-frame decode problem |
55 |
* 22.12.2001 lock based interpolation |
* 22.12.2001 lock based interpolation |
56 |
* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
57 |
* |
* |
58 |
* $Id: decoder.c,v 1.18 2002-05-20 17:12:53 Isibaar Exp $ |
* $Id: decoder.c,v 1.37.2.6 2002-10-30 18:01:48 Isibaar Exp $ |
59 |
* |
* |
60 |
*************************************************************************/ |
*************************************************************************/ |
61 |
|
|
62 |
#include <stdlib.h> |
#include <stdlib.h> |
63 |
#include <string.h> |
#include <string.h> |
64 |
|
|
65 |
|
#ifdef BFRAMES_DEC_DEBUG |
66 |
|
#define BFRAMES_DEC |
67 |
|
#endif |
68 |
|
|
69 |
#include "xvid.h" |
#include "xvid.h" |
70 |
#include "portab.h" |
#include "portab.h" |
71 |
|
|
84 |
#include "prediction/mbprediction.h" |
#include "prediction/mbprediction.h" |
85 |
#include "utils/timer.h" |
#include "utils/timer.h" |
86 |
#include "utils/emms.h" |
#include "utils/emms.h" |
87 |
|
#include "motion/motion.h" |
88 |
|
|
89 |
#include "image/image.h" |
#include "image/image.h" |
90 |
#include "image/colorspace.h" |
#include "image/colorspace.h" |
91 |
#include "utils/mem_align.h" |
#include "utils/mem_align.h" |
92 |
|
|
93 |
int decoder_create(XVID_DEC_PARAM * param) |
int |
94 |
|
decoder_create(XVID_DEC_PARAM * param) |
95 |
{ |
{ |
96 |
DECODER * dec; |
DECODER * dec; |
97 |
|
|
98 |
dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
dec = xvid_malloc(sizeof(DECODER), CACHE_LINE); |
99 |
if (dec == NULL) |
if (dec == NULL) { |
|
{ |
|
100 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
101 |
} |
} |
102 |
param->handle = dec; |
param->handle = dec; |
109 |
|
|
110 |
dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; |
dec->edged_width = 16 * dec->mb_width + 2 * EDGE_SIZE; |
111 |
dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; |
dec->edged_height = 16 * dec->mb_height + 2 * EDGE_SIZE; |
112 |
|
dec->low_delay = 0; |
113 |
|
|
114 |
if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) |
if (image_create(&dec->cur, dec->edged_width, dec->edged_height)) { |
|
{ |
|
115 |
xvid_free(dec); |
xvid_free(dec); |
116 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
117 |
} |
} |
118 |
|
|
119 |
if (image_create(&dec->refn[0], dec->edged_width, dec->edged_height)) |
if (image_create(&dec->refn[0], dec->edged_width, dec->edged_height)) { |
|
{ |
|
120 |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
121 |
xvid_free(dec); |
xvid_free(dec); |
122 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
123 |
} |
} |
124 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
125 |
// for support B-frame to reference last 2 frame |
// for support B-frame to reference last 2 frame |
126 |
if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) |
if (image_create(&dec->refn[1], dec->edged_width, dec->edged_height)) { |
|
{ |
|
127 |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
128 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
129 |
xvid_free(dec); |
xvid_free(dec); |
130 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
131 |
} |
} |
132 |
if (image_create(&dec->refn[2], dec->edged_width, dec->edged_height)) |
if (image_create(&dec->refn[2], dec->edged_width, dec->edged_height)) { |
|
{ |
|
133 |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
134 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
135 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
137 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
138 |
} |
} |
139 |
|
|
140 |
dec->mbs = xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, CACHE_LINE); |
if (image_create(&dec->refh, dec->edged_width, dec->edged_height)) { |
|
if (dec->mbs == NULL) |
|
|
{ |
|
141 |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
142 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
143 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
145 |
xvid_free(dec); |
xvid_free(dec); |
146 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
147 |
} |
} |
148 |
|
|
149 |
|
dec->mbs = |
150 |
|
xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
151 |
|
CACHE_LINE); |
152 |
|
if (dec->mbs == NULL) { |
153 |
|
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
154 |
|
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
155 |
|
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
156 |
|
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
157 |
|
image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
158 |
|
xvid_free(dec); |
159 |
|
return XVID_ERR_MEMORY; |
160 |
|
} |
161 |
|
|
162 |
|
memset(dec->mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
163 |
|
|
164 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
165 |
// for skip MB flag |
// for skip MB flag |
166 |
dec->last_mbs = xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, CACHE_LINE); |
dec->last_mbs = |
167 |
if (dec->last_mbs == NULL) |
xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
168 |
{ |
CACHE_LINE); |
169 |
|
if (dec->last_mbs == NULL) { |
170 |
xvid_free(dec->mbs); |
xvid_free(dec->mbs); |
171 |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
172 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
173 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
174 |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
175 |
|
image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
176 |
xvid_free(dec); |
xvid_free(dec); |
177 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
178 |
} |
} |
179 |
|
|
180 |
|
memset(dec->last_mbs, 0, sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height); |
181 |
|
|
182 |
init_timer(); |
init_timer(); |
183 |
|
|
184 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
190 |
} |
} |
191 |
|
|
192 |
|
|
193 |
int decoder_destroy(DECODER * dec) |
int |
194 |
|
decoder_destroy(DECODER * dec) |
195 |
{ |
{ |
196 |
xvid_free(dec->last_mbs); |
xvid_free(dec->last_mbs); |
197 |
xvid_free(dec->mbs); |
xvid_free(dec->mbs); |
198 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
199 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
200 |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
201 |
|
image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
202 |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
203 |
xvid_free(dec); |
xvid_free(dec); |
204 |
|
|
208 |
|
|
209 |
|
|
210 |
|
|
211 |
static const int32_t dquant_table[4] = |
static const int32_t dquant_table[4] = { |
|
{ |
|
212 |
-1, -2, 1, 2 |
-1, -2, 1, 2 |
213 |
}; |
}; |
214 |
|
|
217 |
|
|
218 |
// decode an intra macroblock |
// decode an intra macroblock |
219 |
|
|
220 |
void decoder_mbintra(DECODER * dec, |
void |
221 |
|
decoder_mbintra(DECODER * dec, |
222 |
MACROBLOCK * pMB, |
MACROBLOCK * pMB, |
223 |
const uint32_t x_pos, |
const uint32_t x_pos, |
224 |
const uint32_t y_pos, |
const uint32_t y_pos, |
226 |
const uint32_t cbp, |
const uint32_t cbp, |
227 |
Bitstream * bs, |
Bitstream * bs, |
228 |
const uint32_t quant, |
const uint32_t quant, |
229 |
const uint32_t intra_dc_threshold) |
const uint32_t intra_dc_threshold, |
230 |
|
const unsigned int bound) |
231 |
{ |
{ |
232 |
|
|
233 |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
246 |
|
|
247 |
memset(block, 0, 6*64*sizeof(int16_t)); // clear |
memset(block, 0, 6*64*sizeof(int16_t)); // clear |
248 |
|
|
249 |
for (i = 0; i < 6; i++) |
for (i = 0; i < 6; i++) { |
|
{ |
|
250 |
uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
uint32_t iDcScaler = get_dc_scaler(iQuant, i < 4); |
251 |
int16_t predictors[8]; |
int16_t predictors[8]; |
252 |
int start_coeff; |
int start_coeff; |
253 |
|
|
254 |
start_timer(); |
start_timer(); |
255 |
predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i*64], iQuant, iDcScaler, predictors); |
predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], |
256 |
if (!acpred_flag) |
iQuant, iDcScaler, predictors, bound); |
257 |
{ |
if (!acpred_flag) { |
258 |
pMB->acpred_directions[i] = 0; |
pMB->acpred_directions[i] = 0; |
259 |
} |
} |
260 |
stop_prediction_timer(); |
stop_prediction_timer(); |
261 |
|
|
262 |
if (quant < intra_dc_threshold) |
if (quant < intra_dc_threshold) { |
|
{ |
|
263 |
int dc_size; |
int dc_size; |
264 |
int dc_dif; |
int dc_dif; |
265 |
|
|
266 |
dc_size = i < 4 ? get_dc_size_lum(bs) : get_dc_size_chrom(bs); |
dc_size = i < 4 ? get_dc_size_lum(bs) : get_dc_size_chrom(bs); |
267 |
dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0 ; |
dc_dif = dc_size ? get_dc_dif(bs, dc_size) : 0 ; |
268 |
|
|
269 |
if (dc_size > 8) |
if (dc_size > 8) { |
|
{ |
|
270 |
BitstreamSkip(bs, 1); // marker |
BitstreamSkip(bs, 1); // marker |
271 |
} |
} |
272 |
|
|
273 |
block[i*64 + 0] = dc_dif; |
block[i*64 + 0] = dc_dif; |
274 |
start_coeff = 1; |
start_coeff = 1; |
275 |
} |
|
276 |
else |
DPRINTF(DPRINTF_COEFF,"block[0] %i", dc_dif); |
277 |
{ |
} else { |
278 |
start_coeff = 0; |
start_coeff = 0; |
279 |
} |
} |
280 |
|
|
281 |
start_timer(); |
start_timer(); |
282 |
if (cbp & (1 << (5-i))) // coded |
if (cbp & (1 << (5-i))) // coded |
283 |
{ |
{ |
284 |
get_intra_block(bs, &block[i*64], pMB->acpred_directions[i], start_coeff); |
int direction = dec->alternate_vertical_scan ? |
285 |
|
2 : pMB->acpred_directions[i]; |
286 |
|
|
287 |
|
get_intra_block(bs, &block[i * 64], direction, start_coeff); |
288 |
} |
} |
289 |
stop_coding_timer(); |
stop_coding_timer(); |
290 |
|
|
293 |
stop_prediction_timer(); |
stop_prediction_timer(); |
294 |
|
|
295 |
start_timer(); |
start_timer(); |
296 |
if (dec->quant_type == 0) |
if (dec->quant_type == 0) { |
|
{ |
|
297 |
dequant_intra(&data[i*64], &block[i*64], iQuant, iDcScaler); |
dequant_intra(&data[i*64], &block[i*64], iQuant, iDcScaler); |
298 |
} |
} else { |
|
else |
|
|
{ |
|
299 |
dequant4_intra(&data[i*64], &block[i*64], iQuant, iDcScaler); |
dequant4_intra(&data[i*64], &block[i*64], iQuant, iDcScaler); |
300 |
} |
} |
301 |
stop_iquant_timer(); |
stop_iquant_timer(); |
305 |
stop_idct_timer(); |
stop_idct_timer(); |
306 |
} |
} |
307 |
|
|
308 |
if (dec->interlacing && pMB->field_dct) |
if (dec->interlacing && pMB->field_dct) { |
|
{ |
|
309 |
next_block = stride; |
next_block = stride; |
310 |
stride *= 2; |
stride *= 2; |
311 |
} |
} |
326 |
|
|
327 |
#define SIGN(X) (((X)>0)?1:-1) |
#define SIGN(X) (((X)>0)?1:-1) |
328 |
#define ABS(X) (((X)>0)?(X):-(X)) |
#define ABS(X) (((X)>0)?(X):-(X)) |
|
static const uint32_t roundtab[16] = |
|
|
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 }; |
|
|
|
|
329 |
|
|
330 |
// decode an inter macroblock |
// decode an inter macroblock |
331 |
|
|
332 |
void decoder_mbinter(DECODER * dec, |
void |
333 |
|
decoder_mbinter(DECODER * dec, |
334 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
335 |
const uint32_t x_pos, |
const uint32_t x_pos, |
336 |
const uint32_t y_pos, |
const uint32_t y_pos, |
356 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
357 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
358 |
|
|
359 |
if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) |
if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { |
|
{ |
|
360 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
361 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
362 |
|
|
363 |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
if (dec->quarterpel) |
|
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
|
|
} |
|
|
else |
|
364 |
{ |
{ |
365 |
|
uv_dx = (uv_dx >> 2) + roundtab_78[uv_dx & 0x7]; |
366 |
|
uv_dy = (uv_dy >> 2) + roundtab_78[uv_dy & 0x7]; |
367 |
|
} |
368 |
|
else { |
369 |
|
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
370 |
|
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
371 |
|
} |
372 |
|
|
373 |
|
start_timer(); |
374 |
|
if(dec->quarterpel) { |
375 |
|
interpolate16x16_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
376 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
377 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
378 |
|
} |
379 |
|
else { |
380 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
381 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
382 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
383 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
384 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
385 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
386 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
387 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
388 |
|
} |
389 |
|
|
390 |
|
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
391 |
|
uv_dx, uv_dy, stride2, rounding); |
392 |
|
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
393 |
|
uv_dx, uv_dy, stride2, rounding); |
394 |
|
stop_comp_timer(); |
395 |
|
|
396 |
|
} else { |
397 |
int sum; |
int sum; |
398 |
|
|
399 |
|
if(dec->quarterpel) |
400 |
|
sum = (pMB->mvs[0].x / 2) + (pMB->mvs[1].x / 2) + (pMB->mvs[2].x / 2) + (pMB->mvs[3].x / 2); |
401 |
|
else |
402 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
|
uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
|
403 |
|
|
404 |
|
uv_dx = (sum >> 3) + roundtab_76[sum & 0xf]; |
405 |
|
|
406 |
|
if(dec->quarterpel) |
407 |
|
sum = (pMB->mvs[0].y / 2) + (pMB->mvs[1].y / 2) + (pMB->mvs[2].y / 2) + (pMB->mvs[3].y / 2); |
408 |
|
else |
409 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
410 |
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
|
411 |
} |
uv_dy = (sum >> 3) + roundtab_76[sum & 0xf]; |
412 |
|
|
413 |
start_timer(); |
start_timer(); |
414 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos , pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
if(dec->quarterpel) { |
415 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos , pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
416 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
417 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
418 |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8*x_pos, 8*y_pos, uv_dx, uv_dy, stride2, rounding); |
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
419 |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8*x_pos, 8*y_pos, uv_dx, uv_dy, stride2, rounding); |
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos, |
420 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
421 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
422 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos + 8, |
423 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
424 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
425 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
426 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
427 |
|
} |
428 |
|
else { |
429 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
430 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
431 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
432 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
433 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
434 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
435 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
436 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
437 |
|
} |
438 |
|
|
439 |
|
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
440 |
|
uv_dx, uv_dy, stride2, rounding); |
441 |
|
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
442 |
|
uv_dx, uv_dy, stride2, rounding); |
443 |
stop_comp_timer(); |
stop_comp_timer(); |
444 |
|
} |
445 |
|
|
446 |
|
for (i = 0; i < 6; i++) { |
447 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
448 |
|
|
|
for (i = 0; i < 6; i++) |
|
|
{ |
|
449 |
if (cbp & (1 << (5-i))) // coded |
if (cbp & (1 << (5-i))) // coded |
450 |
{ |
{ |
451 |
memset(&block[i*64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i*64], 0, 64 * sizeof(int16_t)); // clear |
452 |
|
|
453 |
start_timer(); |
start_timer(); |
454 |
get_inter_block(bs, &block[i*64]); |
get_inter_block(bs, &block[i * 64], direction); |
455 |
stop_coding_timer(); |
stop_coding_timer(); |
456 |
|
|
457 |
start_timer(); |
start_timer(); |
458 |
if (dec->quant_type == 0) |
if (dec->quant_type == 0) { |
|
{ |
|
459 |
dequant_inter(&data[i*64], &block[i*64], iQuant); |
dequant_inter(&data[i*64], &block[i*64], iQuant); |
460 |
} |
} else { |
|
else |
|
|
{ |
|
461 |
dequant4_inter(&data[i*64], &block[i*64], iQuant); |
dequant4_inter(&data[i*64], &block[i*64], iQuant); |
462 |
} |
} |
463 |
stop_iquant_timer(); |
stop_iquant_timer(); |
468 |
} |
} |
469 |
} |
} |
470 |
|
|
471 |
if (dec->interlacing && pMB->field_dct) |
if (dec->interlacing && pMB->field_dct) { |
|
{ |
|
472 |
next_block = stride; |
next_block = stride; |
473 |
stride *= 2; |
stride *= 2; |
474 |
} |
} |
490 |
} |
} |
491 |
|
|
492 |
|
|
493 |
void decoder_iframe(DECODER * dec, Bitstream * bs, int quant, int intra_dc_threshold) |
void |
494 |
|
decoder_iframe(DECODER * dec, |
495 |
|
Bitstream * bs, |
496 |
|
int quant, |
497 |
|
int intra_dc_threshold) |
498 |
{ |
{ |
499 |
|
uint32_t bound; |
500 |
uint32_t x, y; |
uint32_t x, y; |
501 |
|
|
502 |
for (y = 0; y < dec->mb_height; y++) |
bound = 0; |
|
{ |
|
|
for (x = 0; x < dec->mb_width; x++) |
|
|
{ |
|
|
MACROBLOCK * mb = &dec->mbs[y*dec->mb_width + x]; |
|
503 |
|
|
504 |
|
for (y = 0; y < dec->mb_height; y++) { |
505 |
|
for (x = 0; x < dec->mb_width; x++) { |
506 |
|
MACROBLOCK *mb; |
507 |
uint32_t mcbpc; |
uint32_t mcbpc; |
508 |
uint32_t cbpc; |
uint32_t cbpc; |
509 |
uint32_t acpred_flag; |
uint32_t acpred_flag; |
510 |
uint32_t cbpy; |
uint32_t cbpy; |
511 |
uint32_t cbp; |
uint32_t cbp; |
512 |
|
|
513 |
|
while (BitstreamShowBits(bs, 9) == 1) |
514 |
|
BitstreamSkip(bs, 9); |
515 |
|
|
516 |
|
if (check_resync_marker(bs, 0)) |
517 |
|
{ |
518 |
|
bound = read_video_packet_header(bs, 0, &quant); |
519 |
|
x = bound % dec->mb_width; |
520 |
|
y = bound / dec->mb_width; |
521 |
|
} |
522 |
|
mb = &dec->mbs[y * dec->mb_width + x]; |
523 |
|
|
524 |
|
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
525 |
|
|
526 |
mcbpc = get_mcbpc_intra(bs); |
mcbpc = get_mcbpc_intra(bs); |
527 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
528 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
529 |
|
|
530 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
531 |
|
|
|
if (mb->mode == MODE_STUFFING) |
|
|
{ |
|
|
DEBUG("-- STUFFING ?"); |
|
|
continue; |
|
|
} |
|
|
|
|
532 |
cbpy = get_cbpy(bs, 1); |
cbpy = get_cbpy(bs, 1); |
533 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
534 |
|
|
535 |
if (mb->mode == MODE_INTRA_Q) |
if (mb->mode == MODE_INTRA_Q) { |
|
{ |
|
536 |
quant += dquant_table[BitstreamGetBits(bs,2)]; |
quant += dquant_table[BitstreamGetBits(bs,2)]; |
537 |
if (quant > 31) |
if (quant > 31) { |
|
{ |
|
538 |
quant = 31; |
quant = 31; |
539 |
} |
} else if (quant < 1) { |
|
else if (quant < 1) |
|
|
{ |
|
540 |
quant = 1; |
quant = 1; |
541 |
} |
} |
542 |
} |
} |
543 |
mb->quant = quant; |
mb->quant = quant; |
544 |
|
mb->mvs[0].x = mb->mvs[0].y = |
545 |
|
mb->mvs[1].x = mb->mvs[1].y = |
546 |
|
mb->mvs[2].x = mb->mvs[2].y = |
547 |
|
mb->mvs[3].x = mb->mvs[3].y =0; |
548 |
|
|
549 |
if (dec->interlacing) |
if (dec->interlacing) { |
|
{ |
|
550 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
551 |
DEBUG1("deci: field_dct: ", mb->field_dct); |
DEBUG1("deci: field_dct: ", mb->field_dct); |
552 |
} |
} |
553 |
|
|
554 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, intra_dc_threshold); |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
555 |
|
intra_dc_threshold, bound); |
556 |
} |
} |
557 |
|
if(dec->out_frm) |
558 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,dec->mb_width); |
559 |
|
|
560 |
} |
} |
561 |
|
|
562 |
} |
} |
563 |
|
|
564 |
|
|
565 |
void get_motion_vector(DECODER *dec, Bitstream *bs, int x, int y, int k, VECTOR * mv, int fcode) |
void |
566 |
|
get_motion_vector(DECODER * dec, |
567 |
|
Bitstream * bs, |
568 |
|
int x, |
569 |
|
int y, |
570 |
|
int k, |
571 |
|
VECTOR * mv, |
572 |
|
int fcode, |
573 |
|
const int bound) |
574 |
{ |
{ |
575 |
|
|
576 |
int scale_fac = 1 << (fcode - 1); |
int scale_fac = 1 << (fcode - 1); |
578 |
int low = ((-32) * scale_fac); |
int low = ((-32) * scale_fac); |
579 |
int range = (64 * scale_fac); |
int range = (64 * scale_fac); |
580 |
|
|
581 |
VECTOR pmv[4]; |
VECTOR pmv; |
|
int32_t psad[4]; |
|
|
|
|
582 |
int mv_x, mv_y; |
int mv_x, mv_y; |
|
int pmv_x, pmv_y; |
|
|
|
|
|
|
|
|
get_pmvdata(dec->mbs, x, y, dec->mb_width, k, pmv, psad); |
|
583 |
|
|
584 |
pmv_x = pmv[0].x; |
pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
|
pmv_y = pmv[0].y; |
|
585 |
|
|
586 |
mv_x = get_mv(bs, fcode); |
mv_x = get_mv(bs, fcode); |
587 |
mv_y = get_mv(bs, fcode); |
mv_y = get_mv(bs, fcode); |
588 |
|
|
589 |
mv_x += pmv_x; |
DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i)", mv_x, mv_y, pmv.x, pmv.y); |
|
mv_y += pmv_y; |
|
590 |
|
|
591 |
if (mv_x < low) |
mv_x += pmv.x; |
592 |
{ |
mv_y += pmv.y; |
593 |
|
|
594 |
|
if (mv_x < low) { |
595 |
mv_x += range; |
mv_x += range; |
596 |
} |
} else if (mv_x > high) { |
|
else if (mv_x > high) |
|
|
{ |
|
597 |
mv_x -= range; |
mv_x -= range; |
598 |
} |
} |
599 |
|
|
600 |
if (mv_y < low) |
if (mv_y < low) { |
|
{ |
|
601 |
mv_y += range; |
mv_y += range; |
602 |
} |
} else if (mv_y > high) { |
|
else if (mv_y > high) |
|
|
{ |
|
603 |
mv_y -= range; |
mv_y -= range; |
604 |
} |
} |
605 |
|
|
609 |
} |
} |
610 |
|
|
611 |
|
|
612 |
void decoder_pframe(DECODER * dec, Bitstream * bs, int rounding, int quant, int fcode, int intra_dc_threshold) |
void |
613 |
|
decoder_pframe(DECODER * dec, |
614 |
|
Bitstream * bs, |
615 |
|
int rounding, |
616 |
|
int quant, |
617 |
|
int fcode, |
618 |
|
int intra_dc_threshold) |
619 |
{ |
{ |
620 |
|
|
621 |
uint32_t x, y; |
uint32_t x, y; |
622 |
|
uint32_t bound; |
623 |
|
int cp_mb, st_mb; |
624 |
|
|
625 |
start_timer(); |
start_timer(); |
626 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, dec->width, dec->height, dec->interlacing); |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
627 |
|
dec->width, dec->height); |
628 |
stop_edges_timer(); |
stop_edges_timer(); |
629 |
|
|
630 |
for (y = 0; y < dec->mb_height; y++) |
bound = 0; |
631 |
{ |
|
632 |
for (x = 0; x < dec->mb_width; x++) |
for (y = 0; y < dec->mb_height; y++) { |
633 |
|
cp_mb = st_mb = 0; |
634 |
|
for (x = 0; x < dec->mb_width; x++) { |
635 |
|
MACROBLOCK *mb; |
636 |
|
|
637 |
|
// skip stuffing |
638 |
|
while (BitstreamShowBits(bs, 10) == 1) |
639 |
|
BitstreamSkip(bs, 10); |
640 |
|
|
641 |
|
if (check_resync_marker(bs, fcode - 1)) |
642 |
{ |
{ |
643 |
MACROBLOCK * mb = &dec->mbs[y*dec->mb_width + x]; |
bound = read_video_packet_header(bs, fcode - 1, &quant); |
644 |
|
x = bound % dec->mb_width; |
645 |
|
y = bound / dec->mb_width; |
646 |
|
} |
647 |
|
mb = &dec->mbs[y * dec->mb_width + x]; |
648 |
|
|
649 |
|
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
650 |
|
|
651 |
//if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) // not_coded |
//if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) // not_coded |
652 |
if (!(BitstreamGetBit(bs))) // not_coded |
if (!(BitstreamGetBit(bs))) // not_coded |
658 |
uint32_t cbp; |
uint32_t cbp; |
659 |
uint32_t intra; |
uint32_t intra; |
660 |
|
|
661 |
|
cp_mb++; |
662 |
mcbpc = get_mcbpc_inter(bs); |
mcbpc = get_mcbpc_inter(bs); |
663 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
664 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
665 |
|
|
666 |
|
DPRINTF(DPRINTF_MB, "mode %i", mb->mode); |
667 |
|
DPRINTF(DPRINTF_MB, "cbpc %i", cbpc); |
668 |
acpred_flag = 0; |
acpred_flag = 0; |
669 |
|
|
670 |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
671 |
|
|
672 |
if (intra) |
if (intra) { |
|
{ |
|
673 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
674 |
} |
} |
675 |
|
|
|
if (mb->mode == MODE_STUFFING) |
|
|
{ |
|
|
DEBUG("-- STUFFING ?"); |
|
|
continue; |
|
|
} |
|
|
|
|
676 |
cbpy = get_cbpy(bs, intra); |
cbpy = get_cbpy(bs, intra); |
677 |
|
DPRINTF(DPRINTF_MB, "cbpy %i", cbpy); |
678 |
|
|
679 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
680 |
|
|
681 |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
682 |
{ |
int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
683 |
quant += dquant_table[BitstreamGetBits(bs,2)]; |
DPRINTF(DPRINTF_MB, "dquant %i", dquant); |
684 |
if (quant > 31) |
quant += dquant; |
685 |
{ |
if (quant > 31) { |
686 |
quant = 31; |
quant = 31; |
687 |
} |
} else if (quant < 1) { |
|
else if (mb->quant < 1) |
|
|
{ |
|
688 |
quant = 1; |
quant = 1; |
689 |
} |
} |
690 |
|
DPRINTF(DPRINTF_MB, "quant %i", quant); |
691 |
} |
} |
692 |
mb->quant = quant; |
mb->quant = quant; |
693 |
|
|
694 |
if (dec->interlacing) |
if (dec->interlacing) { |
695 |
{ |
if (cbp || intra) { |
696 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
697 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DEBUG1("decp: field_dct: ", mb->field_dct); |
698 |
|
} |
699 |
|
|
700 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
|
{ |
|
701 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
702 |
DEBUG1("decp: field_pred: ", mb->field_pred); |
DEBUG1("decp: field_pred: ", mb->field_pred); |
703 |
|
|
704 |
if (mb->field_pred) |
if (mb->field_pred) { |
|
{ |
|
705 |
mb->field_for_top = BitstreamGetBit(bs); |
mb->field_for_top = BitstreamGetBit(bs); |
706 |
DEBUG1("decp: field_for_top: ", mb->field_for_top); |
DEBUG1("decp: field_for_top: ", mb->field_for_top); |
707 |
mb->field_for_bot = BitstreamGetBit(bs); |
mb->field_for_bot = BitstreamGetBit(bs); |
710 |
} |
} |
711 |
} |
} |
712 |
|
|
713 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
714 |
{ |
if (dec->interlacing && mb->field_pred) { |
715 |
if (dec->interlacing && mb->field_pred) |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
716 |
{ |
fcode, bound); |
717 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
718 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], fcode); |
fcode, bound); |
719 |
} |
} else { |
720 |
else |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
721 |
{ |
fcode, bound); |
722 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode); |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
723 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
mb->mvs[0].x; |
724 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
725 |
} |
mb->mvs[0].y; |
726 |
} |
} |
727 |
else if (mb->mode == MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */) |
} else if (mb->mode == MODE_INTER4V ) { |
728 |
{ |
|
729 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
730 |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode); |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
731 |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode); |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
732 |
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode); |
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); |
733 |
} |
} else // MODE_INTRA, MODE_INTRA_Q |
734 |
else // MODE_INTRA, MODE_INTRA_Q |
{ |
735 |
{ |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
736 |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
0; |
737 |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
738 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, intra_dc_threshold); |
0; |
739 |
|
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
740 |
|
intra_dc_threshold, bound); |
741 |
continue; |
continue; |
742 |
} |
} |
743 |
|
|
744 |
decoder_mbinter(dec, mb, x, y, acpred_flag, cbp, bs, quant, rounding); |
decoder_mbinter(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
745 |
} |
rounding); |
746 |
else // not coded |
} else // not coded |
747 |
{ |
{ |
|
//DEBUG2("P-frame MB at (X,Y)=",x,y); |
|
748 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
749 |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
750 |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
753 |
|
|
754 |
start_timer(); |
start_timer(); |
755 |
|
|
756 |
transfer8x8_copy(dec->cur.y + (16*y)*dec->edged_width + (16*x), |
transfer8x8_copy(dec->cur.y + (16 * y) * dec->edged_width + |
757 |
dec->refn[0].y + (16*y)*dec->edged_width + (16*x), |
(16 * x), |
758 |
dec->edged_width); |
dec->refn[0].y + (16 * y) * dec->edged_width + |
759 |
|
(16 * x), dec->edged_width); |
760 |
transfer8x8_copy(dec->cur.y + (16*y)*dec->edged_width + (16*x+8), |
|
761 |
dec->refn[0].y + (16*y)*dec->edged_width + (16*x+8), |
transfer8x8_copy(dec->cur.y + (16 * y) * dec->edged_width + |
762 |
dec->edged_width); |
(16 * x + 8), |
763 |
|
dec->refn[0].y + (16 * y) * dec->edged_width + |
764 |
transfer8x8_copy(dec->cur.y + (16*y+8)*dec->edged_width + (16*x), |
(16 * x + 8), dec->edged_width); |
765 |
dec->refn[0].y + (16*y+8)*dec->edged_width + (16*x), |
|
766 |
dec->edged_width); |
transfer8x8_copy(dec->cur.y + (16 * y + 8) * dec->edged_width + |
767 |
|
(16 * x), |
768 |
transfer8x8_copy(dec->cur.y + (16*y+8)*dec->edged_width + (16*x+8), |
dec->refn[0].y + (16 * y + |
769 |
dec->refn[0].y + (16*y+8)*dec->edged_width + (16*x+8), |
8) * dec->edged_width + |
770 |
dec->edged_width); |
(16 * x), dec->edged_width); |
771 |
|
|
772 |
transfer8x8_copy(dec->cur.u + (8*y)*dec->edged_width/2 + (8*x), |
transfer8x8_copy(dec->cur.y + (16 * y + 8) * dec->edged_width + |
773 |
dec->refn[0].u + (8*y)*dec->edged_width/2 + (8*x), |
(16 * x + 8), |
774 |
|
dec->refn[0].y + (16 * y + |
775 |
|
8) * dec->edged_width + |
776 |
|
(16 * x + 8), dec->edged_width); |
777 |
|
|
778 |
|
transfer8x8_copy(dec->cur.u + (8 * y) * dec->edged_width / 2 + |
779 |
|
(8 * x), |
780 |
|
dec->refn[0].u + |
781 |
|
(8 * y) * dec->edged_width / 2 + (8 * x), |
782 |
dec->edged_width/2); |
dec->edged_width/2); |
783 |
|
|
784 |
transfer8x8_copy(dec->cur.v + (8*y)*dec->edged_width/2 + (8*x), |
transfer8x8_copy(dec->cur.v + (8 * y) * dec->edged_width / 2 + |
785 |
dec->refn[0].v + (8*y)*dec->edged_width/2 + (8*x), |
(8 * x), |
786 |
|
dec->refn[0].v + |
787 |
|
(8 * y) * dec->edged_width / 2 + (8 * x), |
788 |
dec->edged_width/2); |
dec->edged_width/2); |
|
|
|
789 |
stop_transfer_timer(); |
stop_transfer_timer(); |
790 |
|
if(dec->out_frm && cp_mb > 0) { |
791 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
792 |
|
cp_mb = 0; |
793 |
|
} |
794 |
|
st_mb = x+1; |
795 |
} |
} |
796 |
} |
} |
797 |
|
if(dec->out_frm && cp_mb > 0) |
798 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
799 |
} |
} |
800 |
} |
} |
801 |
|
|
802 |
|
|
803 |
// add by MinChen <chenm001@163.com> |
// add by MinChen <chenm001@163.com> |
804 |
// decode B-frame motion vector |
// decode B-frame motion vector |
805 |
void get_b_motion_vector(DECODER *dec, Bitstream *bs, int x, int y, VECTOR * mv, int fcode, const VECTOR pmv) |
void |
806 |
|
get_b_motion_vector(DECODER * dec, |
807 |
|
Bitstream * bs, |
808 |
|
int x, |
809 |
|
int y, |
810 |
|
VECTOR * mv, |
811 |
|
int fcode, |
812 |
|
const VECTOR pmv) |
813 |
{ |
{ |
814 |
int scale_fac = 1 << (fcode - 1); |
int scale_fac = 1 << (fcode - 1); |
815 |
int high = (32 * scale_fac) - 1; |
int high = (32 * scale_fac) - 1; |
828 |
mv_x += pmv_x; |
mv_x += pmv_x; |
829 |
mv_y += pmv_y; |
mv_y += pmv_y; |
830 |
|
|
831 |
if (mv_x < low) |
if (mv_x < low) { |
|
{ |
|
832 |
mv_x += range; |
mv_x += range; |
833 |
} |
} else if (mv_x > high) { |
|
else if (mv_x > high) |
|
|
{ |
|
834 |
mv_x -= range; |
mv_x -= range; |
835 |
} |
} |
836 |
|
|
837 |
if (mv_y < low) |
if (mv_y < low) { |
|
{ |
|
838 |
mv_y += range; |
mv_y += range; |
839 |
} |
} else if (mv_y > high) { |
|
else if (mv_y > high) |
|
|
{ |
|
840 |
mv_y -= range; |
mv_y -= range; |
841 |
} |
} |
842 |
|
|
847 |
|
|
848 |
// add by MinChen <chenm001@163.com> |
// add by MinChen <chenm001@163.com> |
849 |
// decode an B-frame forward & backward inter macroblock |
// decode an B-frame forward & backward inter macroblock |
850 |
void decoder_bf_mbinter(DECODER * dec, |
void |
851 |
|
decoder_bf_mbinter(DECODER * dec, |
852 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
853 |
const uint32_t x_pos, |
const uint32_t x_pos, |
854 |
const uint32_t y_pos, |
const uint32_t y_pos, |
873 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
874 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
875 |
|
|
876 |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) |
|
877 |
{ |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
878 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
879 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
880 |
|
|
881 |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
882 |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
883 |
} |
} else { |
|
else |
|
|
{ |
|
884 |
int sum; |
int sum; |
885 |
|
|
886 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
887 |
uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
uv_dx = |
888 |
|
(sum == |
889 |
|
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
890 |
|
(ABS(sum) / 16) * 2)); |
891 |
|
|
892 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
893 |
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
uv_dy = |
894 |
|
(sum == |
895 |
|
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
896 |
|
(ABS(sum) / 16) * 2)); |
897 |
} |
} |
898 |
|
|
899 |
start_timer(); |
start_timer(); |
900 |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos , pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, 16 * y_pos, |
901 |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos + 8, 16*y_pos , pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
902 |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos, 16*y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos + 8, |
903 |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16*x_pos + 8, 16*y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
904 |
interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8*x_pos, 8*y_pos, uv_dx, uv_dy, stride2, 0); |
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos, |
905 |
interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8*x_pos, 8*y_pos, uv_dx, uv_dy, stride2, 0); |
16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, |
906 |
|
0); |
907 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[ref].y, 16 * x_pos + 8, |
908 |
|
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
909 |
|
0); |
910 |
|
interpolate8x8_switch(dec->cur.u, dec->refn[ref].u, 8 * x_pos, 8 * y_pos, |
911 |
|
uv_dx, uv_dy, stride2, 0); |
912 |
|
interpolate8x8_switch(dec->cur.v, dec->refn[ref].v, 8 * x_pos, 8 * y_pos, |
913 |
|
uv_dx, uv_dy, stride2, 0); |
914 |
stop_comp_timer(); |
stop_comp_timer(); |
915 |
|
|
916 |
for (i = 0; i < 6; i++) |
for (i = 0; i < 6; i++) { |
917 |
{ |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
918 |
|
|
919 |
if (cbp & (1 << (5-i))) // coded |
if (cbp & (1 << (5-i))) // coded |
920 |
{ |
{ |
921 |
memset(&block[i*64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i*64], 0, 64 * sizeof(int16_t)); // clear |
922 |
|
|
923 |
start_timer(); |
start_timer(); |
924 |
get_inter_block(bs, &block[i*64]); |
get_inter_block(bs, &block[i * 64], direction); |
925 |
stop_coding_timer(); |
stop_coding_timer(); |
926 |
|
|
927 |
start_timer(); |
start_timer(); |
928 |
if (dec->quant_type == 0) |
if (dec->quant_type == 0) { |
|
{ |
|
929 |
dequant_inter(&data[i*64], &block[i*64], iQuant); |
dequant_inter(&data[i*64], &block[i*64], iQuant); |
930 |
} |
} else { |
|
else |
|
|
{ |
|
931 |
dequant4_inter(&data[i*64], &block[i*64], iQuant); |
dequant4_inter(&data[i*64], &block[i*64], iQuant); |
932 |
} |
} |
933 |
stop_iquant_timer(); |
stop_iquant_timer(); |
938 |
} |
} |
939 |
} |
} |
940 |
|
|
941 |
if (dec->interlacing && pMB->field_dct) |
if (dec->interlacing && pMB->field_dct) { |
|
{ |
|
942 |
next_block = stride; |
next_block = stride; |
943 |
stride *= 2; |
stride *= 2; |
944 |
} |
} |
959 |
stop_transfer_timer(); |
stop_transfer_timer(); |
960 |
} |
} |
961 |
|
|
|
|
|
962 |
// add by MinChen <chenm001@163.com> |
// add by MinChen <chenm001@163.com> |
963 |
// decode an B-frame direct & inter macroblock |
// decode an B-frame direct & inter macroblock |
964 |
void decoder_bf_interpolate_mbinter(DECODER * dec, |
void |
965 |
IMAGE forward, IMAGE backward, |
decoder_bf_interpolate_mbinter(DECODER * dec, |
966 |
|
IMAGE forward, |
967 |
|
IMAGE backward, |
968 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
969 |
const uint32_t x_pos, |
const uint32_t x_pos, |
970 |
const uint32_t y_pos, |
const uint32_t y_pos, |
|
const uint32_t cbp, |
|
971 |
Bitstream * bs ) |
Bitstream * bs ) |
972 |
{ |
{ |
973 |
|
|
982 |
int b_uv_dx, b_uv_dy; |
int b_uv_dx, b_uv_dy; |
983 |
uint32_t i; |
uint32_t i; |
984 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
985 |
|
const uint32_t cbp = pMB->cbp; |
986 |
|
|
987 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
988 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
989 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
990 |
|
|
991 |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) |
|
992 |
{ |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
993 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
994 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
995 |
|
|
1001 |
|
|
1002 |
b_uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
b_uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
1003 |
b_uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
b_uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
1004 |
} |
} else { |
|
else |
|
|
{ |
|
1005 |
int sum; |
int sum; |
1006 |
|
|
1007 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
1008 |
uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
uv_dx = |
1009 |
|
(sum == |
1010 |
|
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
1011 |
|
(ABS(sum) / 16) * 2)); |
1012 |
|
|
1013 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
1014 |
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
uv_dy = |
1015 |
|
(sum == |
1016 |
sum = pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + pMB->b_mvs[3].x; |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
1017 |
b_uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
(ABS(sum) / 16) * 2)); |
1018 |
|
|
1019 |
sum = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; |
sum = |
1020 |
b_uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2) ); |
pMB->b_mvs[0].x + pMB->b_mvs[1].x + pMB->b_mvs[2].x + |
1021 |
} |
pMB->b_mvs[3].x; |
1022 |
|
b_uv_dx = |
1023 |
|
(sum == |
1024 |
start_timer(); |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
1025 |
interpolate8x8_switch(dec->cur.y, forward.y, 16*x_pos, 16*y_pos , pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
(ABS(sum) / 16) * 2)); |
1026 |
interpolate8x8_switch(dec->cur.y, forward.y, 16*x_pos + 8, 16*y_pos , pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
|
1027 |
interpolate8x8_switch(dec->cur.y, forward.y, 16*x_pos, 16*y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
sum = |
1028 |
interpolate8x8_switch(dec->cur.y, forward.y, 16*x_pos + 8, 16*y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, 0); |
pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + |
1029 |
interpolate8x8_switch(dec->cur.u, forward.u, 8*x_pos, 8*y_pos, uv_dx, uv_dy, stride2, 0); |
pMB->b_mvs[3].y; |
1030 |
interpolate8x8_switch(dec->cur.v, forward.v, 8*x_pos, 8*y_pos, uv_dx, uv_dy, stride2, 0); |
b_uv_dy = |
1031 |
|
(sum == |
1032 |
|
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
1033 |
interpolate8x8_switch(dec->refn[2].y, backward.y, 16*x_pos, 16*y_pos , pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
(ABS(sum) / 16) * 2)); |
1034 |
interpolate8x8_switch(dec->refn[2].y, backward.y, 16*x_pos + 8, 16*y_pos , pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, 0); |
} |
1035 |
interpolate8x8_switch(dec->refn[2].y, backward.y, 16*x_pos, 16*y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, stride, 0); |
|
1036 |
interpolate8x8_switch(dec->refn[2].y, backward.y, 16*x_pos + 8, 16*y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, stride, 0); |
|
1037 |
interpolate8x8_switch(dec->refn[2].u, backward.u, 8*x_pos, 8*y_pos, b_uv_dx, b_uv_dy, stride2, 0); |
start_timer(); |
1038 |
interpolate8x8_switch(dec->refn[2].v, backward.v, 8*x_pos, 8*y_pos, b_uv_dx, b_uv_dy, stride2, 0); |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos, |
1039 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, 0); |
1040 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16*x_pos, 16*y_pos , stride); |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, 16 * y_pos, |
1041 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16*x_pos + 8, 16*y_pos , stride); |
pMB->mvs[1].x, pMB->mvs[1].y, stride, 0); |
1042 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16*x_pos, 16*y_pos + 8, stride); |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos, 16 * y_pos + 8, |
1043 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16*x_pos + 8, 16*y_pos + 8, stride); |
pMB->mvs[2].x, pMB->mvs[2].y, stride, 0); |
1044 |
interpolate8x8_c(dec->cur.u, dec->refn[2].u, 8*x_pos, 8*y_pos, stride2); |
interpolate8x8_switch(dec->cur.y, forward.y, 16 * x_pos + 8, |
1045 |
interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8*x_pos, 8*y_pos, stride2); |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
1046 |
|
0); |
1047 |
|
interpolate8x8_switch(dec->cur.u, forward.u, 8 * x_pos, 8 * y_pos, uv_dx, |
1048 |
|
uv_dy, stride2, 0); |
1049 |
|
interpolate8x8_switch(dec->cur.v, forward.v, 8 * x_pos, 8 * y_pos, uv_dx, |
1050 |
|
uv_dy, stride2, 0); |
1051 |
|
|
1052 |
|
|
1053 |
|
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, 16 * y_pos, |
1054 |
|
pMB->b_mvs[0].x, pMB->b_mvs[0].y, stride, 0); |
1055 |
|
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, |
1056 |
|
16 * y_pos, pMB->b_mvs[1].x, pMB->b_mvs[1].y, stride, |
1057 |
|
0); |
1058 |
|
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos, |
1059 |
|
16 * y_pos + 8, pMB->b_mvs[2].x, pMB->b_mvs[2].y, |
1060 |
|
stride, 0); |
1061 |
|
interpolate8x8_switch(dec->refn[2].y, backward.y, 16 * x_pos + 8, |
1062 |
|
16 * y_pos + 8, pMB->b_mvs[3].x, pMB->b_mvs[3].y, |
1063 |
|
stride, 0); |
1064 |
|
interpolate8x8_switch(dec->refn[2].u, backward.u, 8 * x_pos, 8 * y_pos, |
1065 |
|
b_uv_dx, b_uv_dy, stride2, 0); |
1066 |
|
interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, |
1067 |
|
b_uv_dx, b_uv_dy, stride2, 0); |
1068 |
|
|
1069 |
|
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1070 |
|
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1071 |
|
dec->refn[2].y + (16 * y_pos * stride) + 16 * x_pos, |
1072 |
|
stride, 0); |
1073 |
|
|
1074 |
|
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1075 |
|
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1076 |
|
dec->refn[2].y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1077 |
|
stride, 0); |
1078 |
|
|
1079 |
|
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1080 |
|
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1081 |
|
dec->refn[2].y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1082 |
|
stride, 0); |
1083 |
|
|
1084 |
|
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1085 |
|
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1086 |
|
dec->refn[2].y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1087 |
|
stride, 0); |
1088 |
|
|
1089 |
|
interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1090 |
|
dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1091 |
|
dec->refn[2].u + (8 * y_pos * stride2) + 8 * x_pos, |
1092 |
|
stride2, 0); |
1093 |
|
|
1094 |
|
interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1095 |
|
dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1096 |
|
dec->refn[2].v + (8 * y_pos * stride2) + 8 * x_pos, |
1097 |
|
stride2, 0); |
1098 |
|
|
1099 |
stop_comp_timer(); |
stop_comp_timer(); |
1100 |
|
|
1101 |
for (i = 0; i < 6; i++) |
for (i = 0; i < 6; i++) { |
1102 |
{ |
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1103 |
|
|
1104 |
if (cbp & (1 << (5-i))) // coded |
if (cbp & (1 << (5-i))) // coded |
1105 |
{ |
{ |
1106 |
memset(&block[i*64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i*64], 0, 64 * sizeof(int16_t)); // clear |
1107 |
|
|
1108 |
start_timer(); |
start_timer(); |
1109 |
get_inter_block(bs, &block[i*64]); |
get_inter_block(bs, &block[i * 64], direction); |
1110 |
stop_coding_timer(); |
stop_coding_timer(); |
1111 |
|
|
1112 |
start_timer(); |
start_timer(); |
1113 |
if (dec->quant_type == 0) |
if (dec->quant_type == 0) { |
|
{ |
|
1114 |
dequant_inter(&data[i*64], &block[i*64], iQuant); |
dequant_inter(&data[i*64], &block[i*64], iQuant); |
1115 |
} |
} else { |
|
else |
|
|
{ |
|
1116 |
dequant4_inter(&data[i*64], &block[i*64], iQuant); |
dequant4_inter(&data[i*64], &block[i*64], iQuant); |
1117 |
} |
} |
1118 |
stop_iquant_timer(); |
stop_iquant_timer(); |
1123 |
} |
} |
1124 |
} |
} |
1125 |
|
|
1126 |
if (dec->interlacing && pMB->field_dct) |
if (dec->interlacing && pMB->field_dct) { |
|
{ |
|
1127 |
next_block = stride; |
next_block = stride; |
1128 |
stride *= 2; |
stride *= 2; |
1129 |
} |
} |
1147 |
|
|
1148 |
// add by MinChen <chenm001@163.com> |
// add by MinChen <chenm001@163.com> |
1149 |
// for decode B-frame dbquant |
// for decode B-frame dbquant |
1150 |
int32_t __inline get_dbquant(Bitstream * bs) |
int32_t __inline |
1151 |
|
get_dbquant(Bitstream * bs) |
1152 |
{ |
{ |
1153 |
if (!BitstreamGetBit(bs)) // '0' |
if (!BitstreamGetBit(bs)) // '0' |
1154 |
return(0); |
return(0); |
1165 |
// 01 1 |
// 01 1 |
1166 |
// 001 2 |
// 001 2 |
1167 |
// 0001 3 |
// 0001 3 |
1168 |
int32_t __inline get_mbtype(Bitstream * bs) |
int32_t __inline |
1169 |
|
get_mbtype(Bitstream * bs) |
1170 |
{ |
{ |
1171 |
int32_t mb_type; |
int32_t mb_type; |
1172 |
|
|
1173 |
for(mb_type=0;mb_type<=3;mb_type++){ |
for(mb_type=0;mb_type<=3;mb_type++){ |
1174 |
if (BitstreamGetBit(bs)) |
if (BitstreamGetBit(bs)) |
1175 |
break; |
break; |
1181 |
return(-1); |
return(-1); |
1182 |
} |
} |
1183 |
|
|
1184 |
void decoder_bframe(DECODER * dec, Bitstream * bs, int quant, int fcode_forward, int fcode_backward) |
void |
1185 |
|
decoder_bframe(DECODER * dec, |
1186 |
|
Bitstream * bs, |
1187 |
|
int quant, |
1188 |
|
int fcode_forward, |
1189 |
|
int fcode_backward) |
1190 |
{ |
{ |
|
|
|
1191 |
uint32_t x, y; |
uint32_t x, y; |
1192 |
VECTOR mv, zeromv; |
VECTOR mv; |
1193 |
|
const VECTOR zeromv = {0,0}; |
1194 |
|
#ifdef BFRAMES_DEC_DEBUG |
1195 |
|
FILE *fp; |
1196 |
|
static char first=0; |
1197 |
|
#define BFRAME_DEBUG if (!first && fp){ \ |
1198 |
|
fprintf(fp,"Y=%3d X=%3d MB=%2d CBP=%02X\n",y,x,mb->mb_type,mb->cbp); \ |
1199 |
|
} |
1200 |
|
#endif |
1201 |
|
|
1202 |
start_timer(); |
start_timer(); |
1203 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, dec->width, dec->height, dec->interlacing); |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1204 |
//image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, dec->width, dec->height, dec->interlacing); |
dec->width, dec->height); |
1205 |
|
image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, |
1206 |
|
dec->width, dec->height); |
1207 |
stop_edges_timer(); |
stop_edges_timer(); |
1208 |
|
|
1209 |
|
#ifdef BFRAMES_DEC_DEBUG |
1210 |
|
if (!first){ |
1211 |
|
fp=fopen("C:\\XVIDDBG.TXT","w"); |
1212 |
|
} |
1213 |
|
#endif |
1214 |
|
|
1215 |
for (y = 0; y < dec->mb_height; y++) |
for (y = 0; y < dec->mb_height; y++) { |
|
{ |
|
1216 |
// Initialize Pred Motion Vector |
// Initialize Pred Motion Vector |
1217 |
dec->p_fmv.x = dec->p_fmv.y = dec->p_bmv.x = dec->p_bmv.y = 0; |
dec->p_fmv = dec->p_bmv = zeromv; |
1218 |
for (x = 0; x < dec->mb_width; x++) |
for (x = 0; x < dec->mb_width; x++) { |
|
{ |
|
1219 |
MACROBLOCK * mb = &dec->mbs[y*dec->mb_width + x]; |
MACROBLOCK * mb = &dec->mbs[y*dec->mb_width + x]; |
1220 |
MACROBLOCK * last_mb = &dec->last_mbs[y*dec->mb_width + x]; |
MACROBLOCK * last_mb = &dec->last_mbs[y*dec->mb_width + x]; |
1221 |
|
|
1222 |
mb->mvs[0].x=mb->mvs[0].y=zeromv.x = zeromv.y = mv.x = mv.y = 0; |
mv = |
1223 |
|
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1224 |
|
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1225 |
|
|
1226 |
// the last P_VOP is skip macroblock ? |
// the last P_VOP is skip macroblock ? |
1227 |
if (last_mb->mode == MODE_NOT_CODED){ |
if (last_mb->mode == MODE_NOT_CODED){ |
1228 |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
|
mb->mb_type = MODE_FORWARD; |
|
1229 |
mb->cbp = 0; |
mb->cbp = 0; |
1230 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
#ifdef BFRAMES_DEC_DEBUG |
1231 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
mb->mb_type = MODE_NOT_CODED; |
1232 |
mb->quant = 8; |
BFRAME_DEBUG |
1233 |
|
#endif |
1234 |
|
mb->mb_type = MODE_FORWARD; |
1235 |
|
mb->quant = last_mb->quant; |
1236 |
|
//mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
1237 |
|
//mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
1238 |
|
|
1239 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); |
1240 |
continue; |
continue; |
1241 |
} |
} |
1242 |
|
|
|
//t=BitstreamShowBits(bs,32); |
|
|
|
|
1243 |
if (!BitstreamGetBit(bs)){ // modb=='0' |
if (!BitstreamGetBit(bs)){ // modb=='0' |
1244 |
const uint8_t modb2=BitstreamGetBit(bs); |
const uint8_t modb2=BitstreamGetBit(bs); |
1245 |
|
|
1253 |
if (mb->mb_type && mb->cbp){ |
if (mb->mb_type && mb->cbp){ |
1254 |
quant += get_dbquant(bs); |
quant += get_dbquant(bs); |
1255 |
|
|
1256 |
if (quant > 31) |
if (quant > 31) { |
|
{ |
|
1257 |
quant = 31; |
quant = 31; |
1258 |
} |
} else if (quant < 1) { |
|
else if (mb->quant < 1) |
|
|
{ |
|
1259 |
quant = 1; |
quant = 1; |
1260 |
} |
} |
|
} else { |
|
|
quant = 8; |
|
1261 |
} |
} |
|
mb->quant = quant; |
|
1262 |
} else { |
} else { |
1263 |
mb->mb_type = MODE_DIRECT_NONE_MV; |
mb->mb_type = MODE_DIRECT_NONE_MV; |
1264 |
mb->cbp = 0; |
mb->cbp = 0; |
1265 |
} |
} |
1266 |
|
|
1267 |
mb->mode = MODE_INTER; |
mb->quant = quant; |
1268 |
|
mb->mode = MODE_INTER4V; |
1269 |
//DEBUG1("Switch bm_type=",mb->mb_type); |
//DEBUG1("Switch bm_type=",mb->mb_type); |
1270 |
|
|
1271 |
switch(mb->mb_type) |
#ifdef BFRAMES_DEC_DEBUG |
1272 |
{ |
BFRAME_DEBUG |
1273 |
|
#endif |
1274 |
|
|
1275 |
|
switch (mb->mb_type) { |
1276 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1277 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], 1, zeromv); |
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1278 |
|
|
1279 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1280 |
{ // Because this file is a C file not C++ so I use '{' to define var |
{ |
1281 |
const int64_t TRB=dec->time_pp-dec->time_bp, |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
|
TRD=dec->time_pp; |
|
1282 |
int i; |
int i; |
1283 |
|
|
1284 |
for(i=0;i<4;i++){ |
for(i=0;i<4;i++){ |
1285 |
mb->mvs[i].x = (int32_t)((TRB * last_mb->mvs[i].x)/TRD+mb->mvs[0].x); |
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) |
1286 |
mb->b_mvs[i].x = (int32_t)((mb->mvs[0].x==0)?((TRB-TRD)*last_mb->mvs[i].x)/TRD:mb->mvs[i].x-last_mb->mvs[i].x); |
/ TRD + mv.x); |
1287 |
mb->mvs[i].y = (int32_t)((TRB * last_mb->mvs[i].y)/TRD+mb->mvs[0].y); |
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
1288 |
mb->b_mvs[i].y = (int32_t)((mb->mvs[0].y==0)?((TRB-TRD)*last_mb->mvs[i].y)/TRD:mb->mvs[i].y-last_mb->mvs[i].y); |
? ((TRB - TRD) * last_mb->mvs[i].x) |
1289 |
|
/ TRD |
1290 |
|
: mb->mvs[i].x - last_mb->mvs[i].x); |
1291 |
|
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) |
1292 |
|
/ TRD + mv.y); |
1293 |
|
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
1294 |
|
? ((TRB - TRD) * last_mb->mvs[i].y) |
1295 |
|
/ TRD |
1296 |
|
: mb->mvs[i].y - last_mb->mvs[i].y); |
1297 |
} |
} |
1298 |
//DEBUG("B-frame Direct!\n"); |
//DEBUG("B-frame Direct!\n"); |
1299 |
} |
} |
1300 |
mb->mode = MODE_INTER4V; |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1301 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1302 |
break; |
break; |
1303 |
|
|
1304 |
case MODE_INTERPOLATE: |
case MODE_INTERPOLATE: |
1305 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, dec->p_fmv); |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1306 |
dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
dec->p_fmv); |
1307 |
dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1308 |
|
|
1309 |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], fcode_backward, dec->p_bmv); |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
1310 |
dec->p_bmv.x = mb->b_mvs[1].x = mb->b_mvs[2].x = mb->b_mvs[3].x = mb->b_mvs[0].x; |
fcode_backward, dec->p_bmv); |
1311 |
dec->p_bmv.y = mb->b_mvs[1].y = mb->b_mvs[2].y = mb->b_mvs[3].y = mb->b_mvs[0].y; |
dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = |
1312 |
|
mb->b_mvs[3] = mb->b_mvs[0]; |
1313 |
|
|
1314 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], mb, x, y, mb->cbp, bs); |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1315 |
|
mb, x, y, bs); |
1316 |
//DEBUG("B-frame Bidir!\n"); |
//DEBUG("B-frame Bidir!\n"); |
1317 |
break; |
break; |
1318 |
|
|
1319 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1320 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, dec->p_bmv); |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
1321 |
dec->p_bmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
dec->p_bmv); |
1322 |
dec->p_bmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1323 |
|
|
1324 |
|
mb->mode = MODE_INTER; |
1325 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1326 |
//DEBUG("B-frame Backward!\n"); |
//DEBUG("B-frame Backward!\n"); |
1327 |
break; |
break; |
1328 |
|
|
1329 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1330 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, dec->p_fmv); |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1331 |
dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
dec->p_fmv); |
1332 |
dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1333 |
|
|
1334 |
|
mb->mode = MODE_INTER; |
1335 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1336 |
//DEBUG("B-frame Forward!\n"); |
//DEBUG("B-frame Forward!\n"); |
1337 |
break; |
break; |
1342 |
|
|
1343 |
} // end of FOR |
} // end of FOR |
1344 |
} |
} |
1345 |
|
#ifdef BFRAMES_DEC_DEBUG |
1346 |
|
if (!first){ |
1347 |
|
first=1; |
1348 |
|
if (fp) |
1349 |
|
fclose(fp); |
1350 |
|
} |
1351 |
|
#endif |
1352 |
} |
} |
1353 |
|
|
1354 |
// swap two MACROBLOCK array |
// swap two MACROBLOCK array |
1355 |
void mb_swap(MACROBLOCK **mb1, MACROBLOCK **mb2) |
void |
1356 |
|
mb_swap(MACROBLOCK ** mb1, |
1357 |
|
MACROBLOCK ** mb2) |
1358 |
{ |
{ |
1359 |
MACROBLOCK *temp=*mb1; |
MACROBLOCK *temp=*mb1; |
1360 |
|
|
1361 |
*mb1=*mb2; |
*mb1=*mb2; |
1362 |
*mb2=temp; |
*mb2=temp; |
1363 |
} |
} |
1364 |
|
|
1365 |
int decoder_decode(DECODER * dec, XVID_DEC_FRAME * frame) |
int |
1366 |
|
decoder_decode(DECODER * dec, |
1367 |
|
XVID_DEC_FRAME * frame) |
1368 |
{ |
{ |
1369 |
|
|
1370 |
Bitstream bs; |
Bitstream bs; |
1377 |
|
|
1378 |
start_global_timer(); |
start_global_timer(); |
1379 |
|
|
1380 |
|
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
1381 |
|
|
1382 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
BitstreamInit(&bs, frame->bitstream, frame->length); |
1383 |
|
|
1384 |
|
if(BitstreamShowBits(&bs, 8) == 0x7f) |
1385 |
|
return XVID_ERR_OK; |
1386 |
|
|
1387 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
1388 |
// for support B-frame to reference last 2 frame |
// for support B-frame to reference last 2 frame |
1389 |
dec->frames++; |
dec->frames++; |
1390 |
vop_type=BitstreamReadHeaders(&bs, dec, &rounding, &quant, &fcode_forward, &fcode_backward, &intra_dc_threshold); |
vop_type = |
1391 |
|
BitstreamReadHeaders(&bs, dec, &rounding, &quant, &fcode_forward, |
1392 |
|
&fcode_backward, &intra_dc_threshold); |
1393 |
|
|
1394 |
dec->p_bmv.x=dec->p_bmv.y=dec->p_fmv.y=dec->p_fmv.y=0; // init pred vector to 0 |
dec->p_bmv.x=dec->p_bmv.y=dec->p_fmv.y=dec->p_fmv.y=0; // init pred vector to 0 |
1395 |
|
|
1396 |
switch (vop_type) |
switch (vop_type) { |
|
{ |
|
1397 |
case P_VOP : |
case P_VOP : |
1398 |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, intra_dc_threshold); |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, |
1399 |
|
intra_dc_threshold); |
1400 |
|
#ifdef BFRAMES_DEC |
1401 |
DEBUG1("P_VOP Time=",dec->time); |
DEBUG1("P_VOP Time=",dec->time); |
1402 |
|
#endif |
1403 |
break; |
break; |
1404 |
|
|
1405 |
case I_VOP : |
case I_VOP : |
1406 |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
1407 |
|
#ifdef BFRAMES_DEC |
1408 |
DEBUG1("I_VOP Time=",dec->time); |
DEBUG1("I_VOP Time=",dec->time); |
1409 |
|
#endif |
1410 |
break; |
break; |
1411 |
|
|
1412 |
case B_VOP : |
case B_VOP : |
1413 |
#ifdef BFRAMES |
#ifdef BFRAMES_DEC |
1414 |
if (dec->time_pp > dec->time_bp){ |
if (dec->time_pp > dec->time_bp){ |
1415 |
DEBUG1("B_VOP Time=",dec->time); |
DEBUG1("B_VOP Time=",dec->time); |
1416 |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1417 |
} else { |
} else { |
1418 |
DEBUG("broken B-frame!"); |
DEBUG("broken B-frame!"); |
1419 |
} |
} |
1420 |
|
#else |
1421 |
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1422 |
#endif |
#endif |
1423 |
break; |
break; |
1424 |
|
|
1425 |
case N_VOP : // vop not coded |
case N_VOP : // vop not coded |
1426 |
|
// when low_delay==0, N_VOP's should interpolate between the past and future frames |
1427 |
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1428 |
|
#ifdef BFRAMES_DEC |
1429 |
|
DEBUG1("N_VOP Time=", dec->time); |
1430 |
|
#endif |
1431 |
break; |
break; |
1432 |
|
|
1433 |
default : |
default : |
1434 |
return XVID_ERR_FAIL; |
return XVID_ERR_FAIL; |
1435 |
} |
} |
1436 |
|
|
1437 |
|
#ifdef BFRAMES_DEC_DEBUG |
1438 |
|
if (frame->length != BitstreamPos(&bs) / 8){ |
1439 |
|
DEBUG2("InLen/UseLen",frame->length, BitstreamPos(&bs) / 8); |
1440 |
|
} |
1441 |
|
#endif |
1442 |
frame->length = BitstreamPos(&bs) / 8; |
frame->length = BitstreamPos(&bs) / 8; |
1443 |
|
|
1444 |
#ifdef BFRAMES |
|
1445 |
|
#ifdef BFRAMES_DEC |
1446 |
// test if no B_VOP |
// test if no B_VOP |
1447 |
if (dec->low_delay){ |
if (dec->low_delay || dec->frames == 0) { |
1448 |
#endif |
#endif |
1449 |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
1450 |
frame->image, frame->stride, frame->colorspace); |
frame->image, frame->stride, frame->colorspace); |
1451 |
#ifdef BFRAMES |
|
1452 |
|
#ifdef BFRAMES_DEC |
1453 |
} else { |
} else { |
1454 |
if (dec->frames >= 1){ |
if (dec->frames >= 1){ |
1455 |
start_timer(); |
start_timer(); |
1456 |
if ((vop_type == I_VOP || vop_type == P_VOP)) |
if ((vop_type == I_VOP || vop_type == P_VOP)) { |
1457 |
{ |
image_output(&dec->refn[0], dec->width, dec->height, |
1458 |
image_output(&dec->refn[0], dec->width, dec->height, dec->edged_width, |
dec->edged_width, frame->image, frame->stride, |
1459 |
frame->image, frame->stride, frame->colorspace); |
frame->colorspace); |
1460 |
} else if (vop_type == B_VOP) { |
} else if (vop_type == B_VOP) { |
1461 |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
image_output(&dec->cur, dec->width, dec->height, |
1462 |
frame->image, frame->stride, frame->colorspace); |
dec->edged_width, frame->image, frame->stride, |
1463 |
|
frame->colorspace); |
1464 |
} |
} |
1465 |
stop_conv_timer(); |
stop_conv_timer(); |
1466 |
} |
} |
1470 |
if (vop_type==I_VOP || vop_type==P_VOP){ |
if (vop_type==I_VOP || vop_type==P_VOP){ |
1471 |
image_swap(&dec->refn[0], &dec->refn[1]); |
image_swap(&dec->refn[0], &dec->refn[1]); |
1472 |
image_swap(&dec->cur, &dec->refn[0]); |
image_swap(&dec->cur, &dec->refn[0]); |
1473 |
|
|
1474 |
// swap MACROBLOCK |
// swap MACROBLOCK |
1475 |
if (dec->low_delay && vop_type==P_VOP) |
// the Divx will not set the low_delay flage some times |
1476 |
|
// so follow code will wrong to not swap at that time |
1477 |
|
// this will broken bitstream! so I'm change it, |
1478 |
|
// But that is not the best way! can anyone tell me how |
1479 |
|
// to do another way? |
1480 |
|
// 18-07-2002 MinChen<chenm001@163.com> |
1481 |
|
//if (!dec->low_delay && vop_type == P_VOP) |
1482 |
|
if (vop_type == P_VOP) |
1483 |
mb_swap(&dec->mbs, &dec->last_mbs); |
mb_swap(&dec->mbs, &dec->last_mbs); |
1484 |
} |
} |
1485 |
|
|