larger edge emu buffer (might have been too small)
[libav.git] / libavcodec / mpegvideo.c
1 /*
2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
20 */
21 #include "avcodec.h"
22 #include "dsputil.h"
23 #include "mpegvideo.h"
24
25 #ifdef USE_FASTMEMCPY
26 #include "fastmemcpy.h"
27 #endif
28
29 static void encode_picture(MpegEncContext *s, int picture_number);
30 static void dct_unquantize_mpeg1_c(MpegEncContext *s,
31 DCTELEM *block, int n, int qscale);
32 static void dct_unquantize_mpeg2_c(MpegEncContext *s,
33 DCTELEM *block, int n, int qscale);
34 static void dct_unquantize_h263_c(MpegEncContext *s,
35 DCTELEM *block, int n, int qscale);
36 static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w);
37 static int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
38
39 int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)= dct_quantize_c;
40 void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w)= draw_edges_c;
41 static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
42 int src_x, int src_y, int w, int h);
43
44 #define EDGE_WIDTH 16
45
46 /* enable all paranoid tests for rounding, overflows, etc... */
47 //#define PARANOID
48
49 //#define DEBUG
50
51
52 /* for jpeg fast DCT */
53 #define CONST_BITS 14
54
55 static const unsigned short aanscales[64] = {
56 /* precomputed values scaled up by 14 bits */
57 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
58 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
59 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
60 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
61 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
62 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
63 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446,
64 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247
65 };
66
67 static UINT8 h263_chroma_roundtab[16] = {
68 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
69 };
70
71 static UINT16 default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
72 static UINT8 default_fcode_tab[MAX_MV*2+1];
73
74 extern UINT8 zigzag_end[64];
75
76 /* default motion estimation */
77 int motion_estimation_method = ME_EPZS;
78
79 static void convert_matrix(int (*qmat)[64], uint16_t (*qmat16)[64], uint16_t (*qmat16_bias)[64],
80 const UINT16 *quant_matrix, int bias)
81 {
82 int qscale;
83
84 for(qscale=1; qscale<32; qscale++){
85 int i;
86 if (av_fdct == fdct_ifast) {
87 for(i=0;i<64;i++) {
88 const int j= block_permute_op(i);
89 /* 16 <= qscale * quant_matrix[i] <= 7905 */
90 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
91 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
92 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
93
94 qmat[qscale][j] = (int)((UINT64_C(1) << (QMAT_SHIFT + 11)) /
95 (aanscales[i] * qscale * quant_matrix[j]));
96 }
97 } else {
98 for(i=0;i<64;i++) {
99 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
100 So 16 <= qscale * quant_matrix[i] <= 7905
101 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
102 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
103 */
104 qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
105 qmat16[qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[block_permute_op(i)]);
106
107 if(qmat16[qscale][i]==0 || qmat16[qscale][i]==128*256) qmat16[qscale][i]=128*256-1;
108
109 qmat16_bias[qscale][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][i]);
110 }
111 }
112 }
113 }
114 // move into common.c perhaps
115 #define CHECKED_ALLOCZ(p, size)\
116 {\
117 p= av_mallocz(size);\
118 if(p==NULL){\
119 perror("malloc");\
120 goto fail;\
121 }\
122 }
123
124 /* init common structure for both encoder and decoder */
125 int MPV_common_init(MpegEncContext *s)
126 {
127 int c_size, i;
128 UINT8 *pict;
129
130 s->dct_unquantize_h263 = dct_unquantize_h263_c;
131 s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_c;
132 s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_c;
133
134 #ifdef HAVE_MMX
135 MPV_common_init_mmx(s);
136 #endif
137 #ifdef ARCH_ALPHA
138 MPV_common_init_axp(s);
139 #endif
140 //setup default unquantizers (mpeg4 might change it later)
141 if(s->out_format == FMT_H263)
142 s->dct_unquantize = s->dct_unquantize_h263;
143 else
144 s->dct_unquantize = s->dct_unquantize_mpeg1;
145
146 s->mb_width = (s->width + 15) / 16;
147 s->mb_height = (s->height + 15) / 16;
148 s->mb_num = s->mb_width * s->mb_height;
149 if(!(s->flags&CODEC_FLAG_DR1)){
150 s->linesize = s->mb_width * 16 + 2 * EDGE_WIDTH;
151 s->uvlinesize = s->mb_width * 8 + EDGE_WIDTH;
152
153 for(i=0;i<3;i++) {
154 int w, h, shift, pict_start;
155
156 w = s->linesize;
157 h = s->mb_height * 16 + 2 * EDGE_WIDTH;
158 shift = (i == 0) ? 0 : 1;
159 c_size = (s->linesize>>shift) * (h >> shift);
160 pict_start = (s->linesize>>shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
161
162 CHECKED_ALLOCZ(pict, c_size)
163 s->last_picture_base[i] = pict;
164 s->last_picture[i] = pict + pict_start;
165 if(i>0) memset(s->last_picture_base[i], 128, c_size);
166
167 CHECKED_ALLOCZ(pict, c_size)
168 s->next_picture_base[i] = pict;
169 s->next_picture[i] = pict + pict_start;
170 if(i>0) memset(s->next_picture_base[i], 128, c_size);
171
172 if (s->has_b_frames || s->codec_id==CODEC_ID_MPEG4) {
173 /* Note the MPEG4 stuff is here cuz of buggy encoders which dont set the low_delay flag but
174 do low-delay encoding, so we cant allways distinguish b-frame containing streams from low_delay streams */
175 CHECKED_ALLOCZ(pict, c_size)
176 s->aux_picture_base[i] = pict;
177 s->aux_picture[i] = pict + pict_start;
178 if(i>0) memset(s->aux_picture_base[i], 128, c_size);
179 }
180 }
181 s->ip_buffer_count= 2;
182 }
183
184 CHECKED_ALLOCZ(s->edge_emu_buffer, (s->width+64)*2*17*2); //(width + edge + align)*interlaced*MBsize*tolerance
185
186 if (s->encoding) {
187 int j;
188 int mv_table_size= (s->mb_width+2)*(s->mb_height+2);
189
190 CHECKED_ALLOCZ(s->mb_var , s->mb_num * sizeof(INT16))
191 CHECKED_ALLOCZ(s->mc_mb_var, s->mb_num * sizeof(INT16))
192
193 /* Allocate MV tables */
194 CHECKED_ALLOCZ(s->p_mv_table , mv_table_size * 2 * sizeof(INT16))
195 CHECKED_ALLOCZ(s->b_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
196 CHECKED_ALLOCZ(s->b_back_mv_table , mv_table_size * 2 * sizeof(INT16))
197 CHECKED_ALLOCZ(s->b_bidir_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
198 CHECKED_ALLOCZ(s->b_bidir_back_mv_table , mv_table_size * 2 * sizeof(INT16))
199 CHECKED_ALLOCZ(s->b_direct_forw_mv_table, mv_table_size * 2 * sizeof(INT16))
200 CHECKED_ALLOCZ(s->b_direct_back_mv_table, mv_table_size * 2 * sizeof(INT16))
201 CHECKED_ALLOCZ(s->b_direct_mv_table , mv_table_size * 2 * sizeof(INT16))
202
203 CHECKED_ALLOCZ(s->me_scratchpad, s->linesize*16*3*sizeof(uint8_t))
204
205 CHECKED_ALLOCZ(s->me_map , ME_MAP_SIZE*sizeof(uint32_t))
206 CHECKED_ALLOCZ(s->me_score_map, ME_MAP_SIZE*sizeof(uint16_t))
207
208 if(s->max_b_frames){
209 for(j=0; j<REORDER_BUFFER_SIZE; j++){
210 int i;
211 for(i=0;i<3;i++) {
212 int w, h, shift;
213
214 w = s->linesize;
215 h = s->mb_height * 16;
216 shift = (i == 0) ? 0 : 1;
217 c_size = (w >> shift) * (h >> shift);
218
219 CHECKED_ALLOCZ(pict, c_size);
220 s->picture_buffer[j][i] = pict;
221 }
222 }
223 }
224
225 if(s->codec_id==CODEC_ID_MPEG4){
226 CHECKED_ALLOCZ(s->tex_pb_buffer, PB_BUFFER_SIZE);
227 CHECKED_ALLOCZ( s->pb2_buffer, PB_BUFFER_SIZE);
228 }
229 }
230
231 if (s->out_format == FMT_H263 || s->encoding) {
232 int size;
233 /* Allocate MB type table */
234 CHECKED_ALLOCZ(s->mb_type , s->mb_num * sizeof(UINT8))
235
236 /* MV prediction */
237 size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
238 CHECKED_ALLOCZ(s->motion_val, size * 2 * sizeof(INT16));
239 }
240
241 if (s->h263_pred || s->h263_plus) {
242 int y_size, c_size, i, size;
243
244 /* dc values */
245
246 y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
247 c_size = (s->mb_width + 2) * (s->mb_height + 2);
248 size = y_size + 2 * c_size;
249 CHECKED_ALLOCZ(s->dc_val[0], size * sizeof(INT16));
250 s->dc_val[1] = s->dc_val[0] + y_size;
251 s->dc_val[2] = s->dc_val[1] + c_size;
252 for(i=0;i<size;i++)
253 s->dc_val[0][i] = 1024;
254
255 /* ac values */
256 CHECKED_ALLOCZ(s->ac_val[0], size * sizeof(INT16) * 16);
257 s->ac_val[1] = s->ac_val[0] + y_size;
258 s->ac_val[2] = s->ac_val[1] + c_size;
259
260 /* cbp values */
261 CHECKED_ALLOCZ(s->coded_block, y_size);
262
263 /* which mb is a intra block */
264 CHECKED_ALLOCZ(s->mbintra_table, s->mb_num);
265 memset(s->mbintra_table, 1, s->mb_num);
266
267 /* divx501 bitstream reorder buffer */
268 CHECKED_ALLOCZ(s->bitstream_buffer, BITSTREAM_BUFFER_SIZE);
269
270 /* cbp, ac_pred, pred_dir */
271 CHECKED_ALLOCZ(s->cbp_table , s->mb_num * sizeof(UINT8))
272 CHECKED_ALLOCZ(s->pred_dir_table, s->mb_num * sizeof(UINT8))
273
274 CHECKED_ALLOCZ(s->qscale_table , s->mb_num * sizeof(UINT8))
275 }
276 /* default structure is frame */
277 s->picture_structure = PICT_FRAME;
278
279 /* init macroblock skip table */
280 CHECKED_ALLOCZ(s->mbskip_table, s->mb_num);
281
282 s->block= s->blocks[0];
283
284 s->context_initialized = 1;
285 return 0;
286 fail:
287 MPV_common_end(s);
288 return -1;
289 }
290
291
292 //extern int sads;
293
294 /* init common structure for both encoder and decoder */
295 void MPV_common_end(MpegEncContext *s)
296 {
297 int i;
298
299 av_freep(&s->mb_type);
300 av_freep(&s->mb_var);
301 av_freep(&s->mc_mb_var);
302 av_freep(&s->p_mv_table);
303 av_freep(&s->b_forw_mv_table);
304 av_freep(&s->b_back_mv_table);
305 av_freep(&s->b_bidir_forw_mv_table);
306 av_freep(&s->b_bidir_back_mv_table);
307 av_freep(&s->b_direct_forw_mv_table);
308 av_freep(&s->b_direct_back_mv_table);
309 av_freep(&s->b_direct_mv_table);
310 av_freep(&s->motion_val);
311 av_freep(&s->dc_val[0]);
312 av_freep(&s->ac_val[0]);
313 av_freep(&s->coded_block);
314 av_freep(&s->mbintra_table);
315 av_freep(&s->cbp_table);
316 av_freep(&s->pred_dir_table);
317 av_freep(&s->qscale_table);
318 av_freep(&s->me_scratchpad);
319 av_freep(&s->me_map);
320 av_freep(&s->me_score_map);
321
322 av_freep(&s->mbskip_table);
323 av_freep(&s->bitstream_buffer);
324 av_freep(&s->tex_pb_buffer);
325 av_freep(&s->pb2_buffer);
326 av_freep(&s->edge_emu_buffer);
327
328 for(i=0;i<3;i++) {
329 int j;
330 if(!(s->flags&CODEC_FLAG_DR1)){
331 av_freep(&s->last_picture_base[i]);
332 av_freep(&s->next_picture_base[i]);
333 av_freep(&s->aux_picture_base[i]);
334 }
335 s->last_picture_base[i]=
336 s->next_picture_base[i]=
337 s->aux_picture_base [i] = NULL;
338 s->last_picture[i]=
339 s->next_picture[i]=
340 s->aux_picture [i] = NULL;
341
342 for(j=0; j<REORDER_BUFFER_SIZE; j++){
343 av_freep(&s->picture_buffer[j][i]);
344 }
345 }
346 s->context_initialized = 0;
347 }
348
349 /* init video encoder */
350 int MPV_encode_init(AVCodecContext *avctx)
351 {
352 MpegEncContext *s = avctx->priv_data;
353 int i;
354
355 avctx->pix_fmt = PIX_FMT_YUV420P;
356
357 s->bit_rate = avctx->bit_rate;
358 s->bit_rate_tolerance = avctx->bit_rate_tolerance;
359 s->frame_rate = avctx->frame_rate;
360 s->width = avctx->width;
361 s->height = avctx->height;
362 if(avctx->gop_size > 600){
363 fprintf(stderr, "Warning keyframe interval too large! reducing it ...\n");
364 avctx->gop_size=600;
365 }
366 s->gop_size = avctx->gop_size;
367 s->rtp_mode = avctx->rtp_mode;
368 s->rtp_payload_size = avctx->rtp_payload_size;
369 if (avctx->rtp_callback)
370 s->rtp_callback = avctx->rtp_callback;
371 s->qmin= avctx->qmin;
372 s->qmax= avctx->qmax;
373 s->max_qdiff= avctx->max_qdiff;
374 s->qcompress= avctx->qcompress;
375 s->qblur= avctx->qblur;
376 s->b_quant_factor= avctx->b_quant_factor;
377 s->b_quant_offset= avctx->b_quant_offset;
378 s->avctx = avctx;
379 s->aspect_ratio_info= avctx->aspect_ratio_info;
380 s->flags= avctx->flags;
381 s->max_b_frames= avctx->max_b_frames;
382 s->rc_strategy= avctx->rc_strategy;
383 s->b_frame_strategy= avctx->b_frame_strategy;
384 s->codec_id= avctx->codec->id;
385 s->luma_elim_threshold = avctx->luma_elim_threshold;
386 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
387 s->strict_std_compliance= avctx->strict_std_compliance;
388 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
389
390 if (s->gop_size <= 1) {
391 s->intra_only = 1;
392 s->gop_size = 12;
393 } else {
394 s->intra_only = 0;
395 }
396
397 /* ME algorithm */
398 if (avctx->me_method == 0)
399 /* For compatibility */
400 s->me_method = motion_estimation_method;
401 else
402 s->me_method = avctx->me_method;
403
404 /* Fixed QSCALE */
405 s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);
406
407 switch(avctx->codec->id) {
408 case CODEC_ID_MPEG1VIDEO:
409 s->out_format = FMT_MPEG1;
410 avctx->delay=0; //FIXME not sure, should check the spec
411 break;
412 case CODEC_ID_MJPEG:
413 s->out_format = FMT_MJPEG;
414 s->intra_only = 1; /* force intra only for jpeg */
415 s->mjpeg_write_tables = 1; /* write all tables */
416 s->mjpeg_data_only_frames = 0; /* write all the needed headers */
417 s->mjpeg_vsample[0] = 2; /* set up default sampling factors */
418 s->mjpeg_vsample[1] = 1; /* the only currently supported values */
419 s->mjpeg_vsample[2] = 1;
420 s->mjpeg_hsample[0] = 2;
421 s->mjpeg_hsample[1] = 1;
422 s->mjpeg_hsample[2] = 1;
423 if (mjpeg_init(s) < 0)
424 return -1;
425 avctx->delay=0;
426 break;
427 case CODEC_ID_H263:
428 if (h263_get_picture_format(s->width, s->height) == 7) {
429 printf("Input picture size isn't suitable for h263 codec! try h263+\n");
430 return -1;
431 }
432 s->out_format = FMT_H263;
433 avctx->delay=0;
434 break;
435 case CODEC_ID_H263P:
436 s->out_format = FMT_H263;
437 s->rtp_mode = 1;
438 s->rtp_payload_size = 1200;
439 s->h263_plus = 1;
440 s->unrestricted_mv = 1;
441 s->h263_aic = 1;
442
443 /* These are just to be sure */
444 s->umvplus = 0;
445 s->umvplus_dec = 0;
446 avctx->delay=0;
447 break;
448 case CODEC_ID_RV10:
449 s->out_format = FMT_H263;
450 s->h263_rv10 = 1;
451 avctx->delay=0;
452 break;
453 case CODEC_ID_MPEG4:
454 s->out_format = FMT_H263;
455 s->h263_pred = 1;
456 s->unrestricted_mv = 1;
457 s->has_b_frames= s->max_b_frames ? 1 : 0;
458 s->low_delay=0;
459 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
460 break;
461 case CODEC_ID_MSMPEG4V1:
462 s->out_format = FMT_H263;
463 s->h263_msmpeg4 = 1;
464 s->h263_pred = 1;
465 s->unrestricted_mv = 1;
466 s->msmpeg4_version= 1;
467 avctx->delay=0;
468 break;
469 case CODEC_ID_MSMPEG4V2:
470 s->out_format = FMT_H263;
471 s->h263_msmpeg4 = 1;
472 s->h263_pred = 1;
473 s->unrestricted_mv = 1;
474 s->msmpeg4_version= 2;
475 avctx->delay=0;
476 break;
477 case CODEC_ID_MSMPEG4V3:
478 s->out_format = FMT_H263;
479 s->h263_msmpeg4 = 1;
480 s->h263_pred = 1;
481 s->unrestricted_mv = 1;
482 s->msmpeg4_version= 3;
483 avctx->delay=0;
484 break;
485 case CODEC_ID_WMV1:
486 s->out_format = FMT_H263;
487 s->h263_msmpeg4 = 1;
488 s->h263_pred = 1;
489 s->unrestricted_mv = 1;
490 s->msmpeg4_version= 4;
491 avctx->delay=0;
492 break;
493 case CODEC_ID_WMV2:
494 s->out_format = FMT_H263;
495 s->h263_msmpeg4 = 1;
496 s->h263_pred = 1;
497 s->unrestricted_mv = 1;
498 s->msmpeg4_version= 5;
499 avctx->delay=0;
500 break;
501 default:
502 return -1;
503 }
504
505 { /* set up some save defaults, some codecs might override them later */
506 static int done=0;
507 if(!done){
508 int i;
509 done=1;
510 memset(default_mv_penalty, 0, sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1));
511 memset(default_fcode_tab , 0, sizeof(UINT8)*(2*MAX_MV+1));
512
513 for(i=-16; i<16; i++){
514 default_fcode_tab[i + MAX_MV]= 1;
515 }
516 }
517 }
518 s->mv_penalty= default_mv_penalty;
519 s->fcode_tab= default_fcode_tab;
520 s->y_dc_scale_table=
521 s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
522
523 if (s->out_format == FMT_H263)
524 h263_encode_init(s);
525 else if (s->out_format == FMT_MPEG1)
526 ff_mpeg1_encode_init(s);
527 if(s->msmpeg4_version)
528 ff_msmpeg4_encode_init(s);
529
530 /* dont use mv_penalty table for crap MV as it would be confused */
531 if (s->me_method < ME_EPZS) s->mv_penalty = default_mv_penalty;
532
533 s->encoding = 1;
534
535 /* init */
536 if (MPV_common_init(s) < 0)
537 return -1;
538
539 /* init default q matrix */
540 for(i=0;i<64;i++) {
541 if(s->out_format == FMT_H263)
542 s->intra_matrix[i] = ff_mpeg1_default_non_intra_matrix[i];
543 else
544 s->intra_matrix[i] = ff_mpeg1_default_intra_matrix[i];
545
546 s->inter_matrix[i] = ff_mpeg1_default_non_intra_matrix[i];
547 }
548
549 /* precompute matrix */
550 /* for mjpeg, we do include qscale in the matrix */
551 if (s->out_format != FMT_MJPEG) {
552 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, s->q_intra_matrix16_bias,
553 s->intra_matrix, s->intra_quant_bias);
554 convert_matrix(s->q_inter_matrix, s->q_inter_matrix16, s->q_inter_matrix16_bias,
555 s->inter_matrix, s->inter_quant_bias);
556 }
557
558 if(ff_rate_control_init(s) < 0)
559 return -1;
560
561 s->picture_number = 0;
562 s->picture_in_gop_number = 0;
563 s->fake_picture_number = 0;
564 /* motion detector init */
565 s->f_code = 1;
566 s->b_code = 1;
567
568 return 0;
569 }
570
571 int MPV_encode_end(AVCodecContext *avctx)
572 {
573 MpegEncContext *s = avctx->priv_data;
574
575 #ifdef STATS
576 print_stats();
577 #endif
578
579 ff_rate_control_uninit(s);
580
581 MPV_common_end(s);
582 if (s->out_format == FMT_MJPEG)
583 mjpeg_close(s);
584
585 return 0;
586 }
587
588 /* draw the edges of width 'w' of an image of size width, height */
589 static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
590 {
591 UINT8 *ptr, *last_line;
592 int i;
593
594 last_line = buf + (height - 1) * wrap;
595 for(i=0;i<w;i++) {
596 /* top and bottom */
597 memcpy(buf - (i + 1) * wrap, buf, width);
598 memcpy(last_line + (i + 1) * wrap, last_line, width);
599 }
600 /* left and right */
601 ptr = buf;
602 for(i=0;i<height;i++) {
603 memset(ptr - w, ptr[0], w);
604 memset(ptr + width, ptr[width-1], w);
605 ptr += wrap;
606 }
607 /* corners */
608 for(i=0;i<w;i++) {
609 memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
610 memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
611 memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
612 memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
613 }
614 }
615
616 /* generic function for encode/decode called before a frame is coded/decoded */
617 void MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
618 {
619 int i;
620 UINT8 *tmp;
621
622 s->mb_skiped = 0;
623 s->decoding_error=0;
624 avctx->mbskip_table= s->mbskip_table;
625
626 if(avctx->flags&CODEC_FLAG_DR1){
627 int i;
628 avctx->get_buffer_callback(avctx, s->width, s->height, s->pict_type);
629
630 s->linesize = avctx->dr_stride;
631 s->uvlinesize= avctx->dr_uvstride;
632 s->ip_buffer_count= avctx->dr_ip_buffer_count;
633 }
634 avctx->dr_ip_buffer_count= s->ip_buffer_count;
635
636 if (s->pict_type == B_TYPE) {
637 for(i=0;i<3;i++) {
638 if(avctx->flags&CODEC_FLAG_DR1)
639 s->aux_picture[i]= avctx->dr_buffer[i];
640
641 s->current_picture[i] = s->aux_picture[i];
642 }
643 } else {
644 for(i=0;i<3;i++) {
645 /* swap next and last */
646 if(avctx->flags&CODEC_FLAG_DR1)
647 tmp= avctx->dr_buffer[i];
648 else
649 tmp = s->last_picture[i];
650
651 s->last_picture[i] = s->next_picture[i];
652 s->next_picture[i] = tmp;
653 s->current_picture[i] = tmp;
654
655 s->last_dr_opaque= s->next_dr_opaque;
656 s->next_dr_opaque= avctx->dr_opaque_frame;
657
658 if(s->has_b_frames && s->last_dr_opaque && s->codec_id!=CODEC_ID_SVQ1)
659 avctx->dr_opaque_frame= s->last_dr_opaque;
660 else
661 avctx->dr_opaque_frame= s->next_dr_opaque;
662 }
663 }
664 }
665
666 /* generic function for encode/decode called after a frame has been coded/decoded */
667 void MPV_frame_end(MpegEncContext *s)
668 {
669 // if((s->picture_number%100)==0 && s->encoding) printf("sads:%d //\n", sads);
670
671 /* draw edge for correct motion prediction if outside */
672 if (s->pict_type != B_TYPE && !s->intra_only && !(s->flags&CODEC_FLAG_EMU_EDGE)) {
673 if(s->avctx==NULL || s->avctx->codec->id!=CODEC_ID_MPEG4 || s->divx_version>=500){
674 draw_edges(s->current_picture[0], s->linesize, s->mb_width*16, s->mb_height*16, EDGE_WIDTH);
675 draw_edges(s->current_picture[1], s->uvlinesize, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
676 draw_edges(s->current_picture[2], s->uvlinesize, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
677 }else{
678 /* mpeg4? / opendivx / xvid */
679 draw_edges(s->current_picture[0], s->linesize, s->width, s->height, EDGE_WIDTH);
680 draw_edges(s->current_picture[1], s->uvlinesize, s->width/2, s->height/2, EDGE_WIDTH/2);
681 draw_edges(s->current_picture[2], s->uvlinesize, s->width/2, s->height/2, EDGE_WIDTH/2);
682 }
683 }
684 emms_c();
685
686 if(s->pict_type!=B_TYPE){
687 s->last_non_b_pict_type= s->pict_type;
688 s->last_non_b_qscale= s->qscale;
689 s->last_non_b_mc_mb_var= s->mc_mb_var_sum;
690 s->num_available_buffers++;
691 if(s->num_available_buffers>2) s->num_available_buffers= 2;
692 }
693 }
694
695 /* reorder input for encoding */
696 void reorder_input(MpegEncContext *s, AVPicture *pict)
697 {
698 int i, j, index;
699
700 if(s->max_b_frames > FF_MAX_B_FRAMES) s->max_b_frames= FF_MAX_B_FRAMES;
701
702 // delay= s->max_b_frames+1; (or 0 if no b frames cuz decoder diff)
703
704 for(j=0; j<REORDER_BUFFER_SIZE-1; j++){
705 s->coded_order[j]= s->coded_order[j+1];
706 }
707 s->coded_order[j].picture[0]= s->coded_order[j].picture[1]= s->coded_order[j].picture[2]= NULL; //catch uninitalized buffers
708 s->coded_order[j].pict_type=0;
709
710 switch(s->input_pict_type){
711 default:
712 case I_TYPE:
713 case S_TYPE:
714 case P_TYPE:
715 index= s->max_b_frames - s->b_frames_since_non_b;
716 s->b_frames_since_non_b=0;
717 break;
718 case B_TYPE:
719 index= s->max_b_frames + 1;
720 s->b_frames_since_non_b++;
721 break;
722 }
723 //printf("index:%d type:%d strides: %d %d\n", index, s->input_pict_type, pict->linesize[0], s->linesize);
724 if( (index==0 || (s->flags&CODEC_FLAG_INPUT_PRESERVED))
725 && pict->linesize[0] == s->linesize
726 && pict->linesize[1] == s->uvlinesize
727 && pict->linesize[2] == s->uvlinesize){
728 //printf("ptr\n");
729 for(i=0; i<3; i++){
730 s->coded_order[index].picture[i]= pict->data[i];
731 }
732 }else{
733 //printf("copy\n");
734 for(i=0; i<3; i++){
735 uint8_t *src = pict->data[i];
736 uint8_t *dest;
737 int src_wrap = pict->linesize[i];
738 int dest_wrap = s->linesize;
739 int w = s->width;
740 int h = s->height;
741
742 if(index==0) dest= s->last_picture[i]+16; //is current_picture indeed but the switch hapens after reordering
743 else dest= s->picture_buffer[s->picture_buffer_index][i];
744
745 if (i >= 1) {
746 dest_wrap >>= 1;
747 w >>= 1;
748 h >>= 1;
749 }
750
751 s->coded_order[index].picture[i]= dest;
752 for(j=0;j<h;j++) {
753 memcpy(dest, src, w);
754 dest += dest_wrap;
755 src += src_wrap;
756 }
757 }
758 if(index!=0){
759 s->picture_buffer_index++;
760 if(s->picture_buffer_index >= REORDER_BUFFER_SIZE-1) s->picture_buffer_index=0;
761 }
762 }
763 s->coded_order[index].pict_type = s->input_pict_type;
764 s->coded_order[index].qscale = s->input_qscale;
765 s->coded_order[index].force_type= s->force_input_type;
766 s->coded_order[index].picture_in_gop_number= s->input_picture_in_gop_number;
767 s->coded_order[index].picture_number= s->input_picture_number;
768
769 for(i=0; i<3; i++){
770 s->new_picture[i]= s->coded_order[0].picture[i];
771 }
772 }
773
774 int MPV_encode_picture(AVCodecContext *avctx,
775 unsigned char *buf, int buf_size, void *data)
776 {
777 MpegEncContext *s = avctx->priv_data;
778 AVPicture *pict = data;
779
780 s->input_qscale = avctx->quality;
781
782 init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
783
784 if(avctx->flags&CODEC_FLAG_TYPE){
785 s->input_pict_type=
786 s->force_input_type= avctx->key_frame ? I_TYPE : P_TYPE;
787 }else if(s->flags&CODEC_FLAG_PASS2){
788 s->input_pict_type=
789 s->force_input_type= s->rc_context.entry[s->input_picture_number].new_pict_type;
790 }else{
791 s->force_input_type=0;
792 if (!s->intra_only) {
793 /* first picture of GOP is intra */
794 if (s->input_picture_in_gop_number % s->gop_size==0){
795 s->input_pict_type = I_TYPE;
796 }else if(s->max_b_frames==0){
797 s->input_pict_type = P_TYPE;
798 }else{
799 if(s->b_frames_since_non_b < s->max_b_frames) //FIXME more IQ
800 s->input_pict_type = B_TYPE;
801 else
802 s->input_pict_type = P_TYPE;
803 }
804 } else {
805 s->input_pict_type = I_TYPE;
806 }
807 }
808
809 if(s->input_pict_type==I_TYPE)
810 s->input_picture_in_gop_number=0;
811
812 reorder_input(s, pict);
813
814 /* output? */
815 if(s->coded_order[0].picture[0]){
816
817 s->pict_type= s->coded_order[0].pict_type;
818 if (s->fixed_qscale) /* the ratecontrol needs the last qscale so we dont touch it for CBR */
819 s->qscale= s->coded_order[0].qscale;
820 s->force_type= s->coded_order[0].force_type;
821 s->picture_in_gop_number= s->coded_order[0].picture_in_gop_number;
822 s->picture_number= s->coded_order[0].picture_number;
823
824 MPV_frame_start(s, avctx);
825
826 encode_picture(s, s->picture_number);
827 avctx->key_frame = (s->pict_type == I_TYPE);
828 avctx->pict_type = s->pict_type;
829 avctx->real_pict_num = s->picture_number;
830 avctx->header_bits = s->header_bits;
831 avctx->mv_bits = s->mv_bits;
832 avctx->misc_bits = s->misc_bits;
833 avctx->i_tex_bits = s->i_tex_bits;
834 avctx->p_tex_bits = s->p_tex_bits;
835 avctx->i_count = s->i_count;
836 avctx->p_count = s->p_count;
837 avctx->skip_count = s->skip_count;
838
839 MPV_frame_end(s);
840
841 if (s->out_format == FMT_MJPEG)
842 mjpeg_picture_trailer(s);
843
844 avctx->quality = s->qscale;
845
846 if(s->flags&CODEC_FLAG_PASS1)
847 ff_write_pass1_stats(s);
848
849 }
850
851 s->input_picture_number++;
852 s->input_picture_in_gop_number++;
853
854 flush_put_bits(&s->pb);
855 s->frame_bits = (pbBufPtr(&s->pb) - s->pb.buf) * 8;
856 if(s->pict_type==B_TYPE) s->pb_frame_bits+= s->frame_bits;
857 else s->pb_frame_bits= s->frame_bits;
858
859 s->total_bits += s->frame_bits;
860 avctx->frame_bits = s->frame_bits;
861 //printf("fcode: %d, type: %d, head: %d, mv: %d, misc: %d, frame: %d, itex: %d, ptex: %d\n",
862 //s->f_code, avctx->key_frame, s->header_bits, s->mv_bits, s->misc_bits, s->frame_bits, s->i_tex_bits, s->p_tex_bits);
863
864 if (avctx->get_psnr) {
865 /* At this point pict->data should have the original frame */
866 /* an s->current_picture should have the coded/decoded frame */
867 get_psnr(pict->data, s->current_picture,
868 pict->linesize, s->linesize, avctx);
869 // printf("%f\n", avctx->psnr_y);
870 }
871 return pbBufPtr(&s->pb) - s->pb.buf;
872 }
873
874 static inline void gmc1_motion(MpegEncContext *s,
875 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
876 int dest_offset,
877 UINT8 **ref_picture, int src_offset,
878 int h)
879 {
880 UINT8 *ptr;
881 int offset, src_x, src_y, linesize, uvlinesize;
882 int motion_x, motion_y;
883 int emu=0;
884
885 if(s->real_sprite_warping_points>1) printf("more than 1 warp point isnt supported\n");
886 motion_x= s->sprite_offset[0][0];
887 motion_y= s->sprite_offset[0][1];
888 src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
889 src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
890 motion_x<<=(3-s->sprite_warping_accuracy);
891 motion_y<<=(3-s->sprite_warping_accuracy);
892 src_x = clip(src_x, -16, s->width);
893 if (src_x == s->width)
894 motion_x =0;
895 src_y = clip(src_y, -16, s->height);
896 if (src_y == s->height)
897 motion_y =0;
898
899 linesize = s->linesize;
900 uvlinesize = s->uvlinesize;
901 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
902
903 dest_y+=dest_offset;
904 if(s->flags&CODEC_FLAG_EMU_EDGE){
905 if(src_x<0 || src_y<0 || src_x + (motion_x&15) + 16 > s->width
906 || src_y + (motion_y&15) + h > s->height){
907 emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, s->height);
908 ptr= s->edge_emu_buffer;
909 emu=1;
910 }
911 }
912 gmc1(dest_y , ptr , linesize, h, motion_x&15, motion_y&15, s->no_rounding);
913 gmc1(dest_y+8, ptr+8, linesize, h, motion_x&15, motion_y&15, s->no_rounding);
914
915 motion_x= s->sprite_offset[1][0];
916 motion_y= s->sprite_offset[1][1];
917 src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
918 src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
919 motion_x<<=(3-s->sprite_warping_accuracy);
920 motion_y<<=(3-s->sprite_warping_accuracy);
921 src_x = clip(src_x, -8, s->width>>1);
922 if (src_x == s->width>>1)
923 motion_x =0;
924 src_y = clip(src_y, -8, s->height>>1);
925 if (src_y == s->height>>1)
926 motion_y =0;
927
928 offset = (src_y * uvlinesize) + src_x + (src_offset>>1);
929 ptr = ref_picture[1] + offset;
930 if(emu){
931 emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, s->height>>1);
932 ptr= s->edge_emu_buffer;
933 }
934 gmc1(dest_cb + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
935
936 ptr = ref_picture[2] + offset;
937 if(emu){
938 emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, s->height>>1);
939 ptr= s->edge_emu_buffer;
940 }
941 gmc1(dest_cr + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
942
943 return;
944 }
945
946 static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
947 int src_x, int src_y, int w, int h){
948 int x, y;
949 int start_y, start_x, end_y, end_x;
950 UINT8 *buf= s->edge_emu_buffer;
951 #if 0
952 if(s->codec_id!=CODEC_ID_MPEG4 || s->divx_version>=500){
953 if(block_w < 10){
954 w= (w+7)&(~7);
955 h= (h+7)&(~7);
956 }else{
957 w= (w+15)&(~15);
958 h= (h+15)&(~15);
959 }
960 }
961 #endif
962 if(src_y>= h){
963 src+= (h-1-src_y)*linesize;
964 src_y=h-1;
965 }else if(src_y<=-block_h){
966 src+= (1-block_h-src_y)*linesize;
967 src_y=1-block_h;
968 }
969 if(src_x>= w){
970 src+= (w-1-src_x);
971 src_x=w-1;
972 }else if(src_x<=-block_w){
973 src+= (1-block_w-src_x);
974 src_x=1-block_w;
975 }
976
977 start_y= MAX(0, -src_y);
978 start_x= MAX(0, -src_x);
979 end_y= MIN(block_h, h-src_y);
980 end_x= MIN(block_w, w-src_x);
981
982 // copy existing part
983 for(y=start_y; y<end_y; y++){
984 for(x=start_x; x<end_x; x++){
985 buf[x + y*linesize]= src[x + y*linesize];
986 }
987 }
988
989 //top
990 for(y=0; y<start_y; y++){
991 for(x=start_x; x<end_x; x++){
992 buf[x + y*linesize]= buf[x + start_y*linesize];
993 }
994 }
995
996 //bottom
997 for(y=end_y; y<block_h; y++){
998 for(x=start_x; x<end_x; x++){
999 buf[x + y*linesize]= buf[x + (end_y-1)*linesize];
1000 }
1001 }
1002
1003 for(y=0; y<block_h; y++){
1004 //left
1005 for(x=0; x<start_x; x++){
1006 buf[x + y*linesize]= buf[start_x + y*linesize];
1007 }
1008
1009 //right
1010 for(x=end_x; x<block_w; x++){
1011 buf[x + y*linesize]= buf[end_x - 1 + y*linesize];
1012 }
1013 }
1014 }
1015
1016
1017 /* apply one mpeg motion vector to the three components */
1018 static inline void mpeg_motion(MpegEncContext *s,
1019 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1020 int dest_offset,
1021 UINT8 **ref_picture, int src_offset,
1022 int field_based, op_pixels_func *pix_op,
1023 int motion_x, int motion_y, int h)
1024 {
1025 UINT8 *ptr;
1026 int dxy, offset, mx, my, src_x, src_y, height, linesize, uvlinesize;
1027 int emu=0;
1028
1029 if(s->quarter_sample)
1030 {
1031 motion_x>>=1;
1032 motion_y>>=1;
1033 }
1034 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1035 src_x = s->mb_x * 16 + (motion_x >> 1);
1036 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
1037
1038 /* WARNING: do no forget half pels */
1039 height = s->height >> field_based;
1040 src_x = clip(src_x, -16, s->width);
1041 if (src_x == s->width)
1042 dxy &= ~1;
1043 src_y = clip(src_y, -16, height);
1044 if (src_y == height)
1045 dxy &= ~2;
1046 linesize = s->linesize << field_based;
1047 uvlinesize = s->uvlinesize << field_based;
1048 ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
1049 dest_y += dest_offset;
1050
1051 if(s->flags&CODEC_FLAG_EMU_EDGE){
1052 if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 16 > s->width
1053 || src_y + (motion_y&1) + h > height){
1054 emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
1055 ptr= s->edge_emu_buffer;
1056 emu=1;
1057 }
1058 }
1059 pix_op[dxy](dest_y, ptr, linesize, h);
1060 pix_op[dxy](dest_y + 8, ptr + 8, linesize, h);
1061
1062 if(s->flags&CODEC_FLAG_GRAY) return;
1063
1064 if (s->out_format == FMT_H263) {
1065 dxy = 0;
1066 if ((motion_x & 3) != 0)
1067 dxy |= 1;
1068 if ((motion_y & 3) != 0)
1069 dxy |= 2;
1070 mx = motion_x >> 2;
1071 my = motion_y >> 2;
1072 } else {
1073 mx = motion_x / 2;
1074 my = motion_y / 2;
1075 dxy = ((my & 1) << 1) | (mx & 1);
1076 mx >>= 1;
1077 my >>= 1;
1078 }
1079
1080 src_x = s->mb_x * 8 + mx;
1081 src_y = s->mb_y * (8 >> field_based) + my;
1082 src_x = clip(src_x, -8, s->width >> 1);
1083 if (src_x == (s->width >> 1))
1084 dxy &= ~1;
1085 src_y = clip(src_y, -8, height >> 1);
1086 if (src_y == (height >> 1))
1087 dxy &= ~2;
1088 offset = (src_y * uvlinesize) + src_x + (src_offset >> 1);
1089 ptr = ref_picture[1] + offset;
1090 if(emu){
1091 emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1092 ptr= s->edge_emu_buffer;
1093 }
1094 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
1095
1096 ptr = ref_picture[2] + offset;
1097 if(emu){
1098 emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1099 ptr= s->edge_emu_buffer;
1100 }
1101 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
1102 }
1103
1104 static inline void qpel_motion(MpegEncContext *s,
1105 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1106 int dest_offset,
1107 UINT8 **ref_picture, int src_offset,
1108 int field_based, op_pixels_func *pix_op,
1109 qpel_mc_func *qpix_op,
1110 int motion_x, int motion_y, int h)
1111 {
1112 UINT8 *ptr;
1113 int dxy, offset, mx, my, src_x, src_y, height, linesize;
1114 int emu=0;
1115
1116 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
1117 src_x = s->mb_x * 16 + (motion_x >> 2);
1118 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
1119
1120 height = s->height >> field_based;
1121 src_x = clip(src_x, -16, s->width);
1122 if (src_x == s->width)
1123 dxy &= ~3;
1124 src_y = clip(src_y, -16, height);
1125 if (src_y == height)
1126 dxy &= ~12;
1127 linesize = s->linesize << field_based;
1128 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
1129 dest_y += dest_offset;
1130 //printf("%d %d %d\n", src_x, src_y, dxy);
1131
1132 if(s->flags&CODEC_FLAG_EMU_EDGE){
1133 if(src_x<0 || src_y<0 || src_x + (motion_x&3) + 16 > s->width
1134 || src_y + (motion_y&3) + h > height){
1135 emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
1136 ptr= s->edge_emu_buffer;
1137 emu=1;
1138 }
1139 }
1140 qpix_op[dxy](dest_y , ptr , linesize, linesize, motion_x&3, motion_y&3);
1141 qpix_op[dxy](dest_y + 8, ptr + 8, linesize, linesize, motion_x&3, motion_y&3);
1142 qpix_op[dxy](dest_y + linesize*8 , ptr + linesize*8 , linesize, linesize, motion_x&3, motion_y&3);
1143 qpix_op[dxy](dest_y + linesize*8 + 8, ptr + linesize*8 + 8, linesize, linesize, motion_x&3, motion_y&3);
1144
1145 if(s->flags&CODEC_FLAG_GRAY) return;
1146
1147 mx= (motion_x>>1) | (motion_x&1);
1148 my= (motion_y>>1) | (motion_y&1);
1149
1150 dxy = 0;
1151 if ((mx & 3) != 0)
1152 dxy |= 1;
1153 if ((my & 3) != 0)
1154 dxy |= 2;
1155 mx = mx >> 2;
1156 my = my >> 2;
1157
1158 src_x = s->mb_x * 8 + mx;
1159 src_y = s->mb_y * (8 >> field_based) + my;
1160 src_x = clip(src_x, -8, s->width >> 1);
1161 if (src_x == (s->width >> 1))
1162 dxy &= ~1;
1163 src_y = clip(src_y, -8, height >> 1);
1164 if (src_y == (height >> 1))
1165 dxy &= ~2;
1166
1167 offset = (src_y * s->uvlinesize) + src_x + (src_offset >> 1);
1168 ptr = ref_picture[1] + offset;
1169 if(emu){
1170 emulated_edge_mc(s, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1171 ptr= s->edge_emu_buffer;
1172 }
1173 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, s->uvlinesize, h >> 1);
1174
1175 ptr = ref_picture[2] + offset;
1176 if(emu){
1177 emulated_edge_mc(s, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1178 ptr= s->edge_emu_buffer;
1179 }
1180 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, s->uvlinesize, h >> 1);
1181 }
1182
1183
1184 static inline void MPV_motion(MpegEncContext *s,
1185 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1186 int dir, UINT8 **ref_picture,
1187 op_pixels_func *pix_op, qpel_mc_func *qpix_op)
1188 {
1189 int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
1190 int mb_x, mb_y, i;
1191 UINT8 *ptr, *dest;
1192 int emu=0;
1193
1194 mb_x = s->mb_x;
1195 mb_y = s->mb_y;
1196
1197 switch(s->mv_type) {
1198 case MV_TYPE_16X16:
1199 if(s->mcsel){
1200 #if 0
1201 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1202 ref_picture, 0,
1203 0, pix_op,
1204 s->sprite_offset[0][0]>>3,
1205 s->sprite_offset[0][1]>>3,
1206 16);
1207 #else
1208 gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
1209 ref_picture, 0,
1210 16);
1211 #endif
1212 }else if(s->quarter_sample && dir==0){ //FIXME
1213 qpel_motion(s, dest_y, dest_cb, dest_cr, 0,
1214 ref_picture, 0,
1215 0, pix_op, qpix_op,
1216 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1217 }else{
1218 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1219 ref_picture, 0,
1220 0, pix_op,
1221 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1222 }
1223 break;
1224 case MV_TYPE_8X8:
1225 for(i=0;i<4;i++) {
1226 motion_x = s->mv[dir][i][0];
1227 motion_y = s->mv[dir][i][1];
1228
1229 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1230 src_x = mb_x * 16 + (motion_x >> 1) + (i & 1) * 8;
1231 src_y = mb_y * 16 + (motion_y >> 1) + (i >>1) * 8;
1232
1233 /* WARNING: do no forget half pels */
1234 src_x = clip(src_x, -16, s->width);
1235 if (src_x == s->width)
1236 dxy &= ~1;
1237 src_y = clip(src_y, -16, s->height);
1238 if (src_y == s->height)
1239 dxy &= ~2;
1240
1241 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
1242 if(s->flags&CODEC_FLAG_EMU_EDGE){
1243 if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 8 > s->width
1244 || src_y + (motion_y&1) + 8 > s->height){
1245 emulated_edge_mc(s, ptr, s->linesize, 9, 9, src_x, src_y, s->width, s->height);
1246 ptr= s->edge_emu_buffer;
1247 }
1248 }
1249 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
1250 pix_op[dxy](dest, ptr, s->linesize, 8);
1251 }
1252
1253 if(s->flags&CODEC_FLAG_GRAY) break;
1254 /* In case of 8X8, we construct a single chroma motion vector
1255 with a special rounding */
1256 mx = 0;
1257 my = 0;
1258 for(i=0;i<4;i++) {
1259 mx += s->mv[dir][i][0];
1260 my += s->mv[dir][i][1];
1261 }
1262 if (mx >= 0)
1263 mx = (h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1264 else {
1265 mx = -mx;
1266 mx = -(h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1267 }
1268 if (my >= 0)
1269 my = (h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1270 else {
1271 my = -my;
1272 my = -(h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1273 }
1274 dxy = ((my & 1) << 1) | (mx & 1);
1275 mx >>= 1;
1276 my >>= 1;
1277
1278 src_x = mb_x * 8 + mx;
1279 src_y = mb_y * 8 + my;
1280 src_x = clip(src_x, -8, s->width/2);
1281 if (src_x == s->width/2)
1282 dxy &= ~1;
1283 src_y = clip(src_y, -8, s->height/2);
1284 if (src_y == s->height/2)
1285 dxy &= ~2;
1286
1287 offset = (src_y * (s->uvlinesize)) + src_x;
1288 ptr = ref_picture[1] + offset;
1289 if(s->flags&CODEC_FLAG_EMU_EDGE){
1290 if(src_x<0 || src_y<0 || src_x + (dxy &1) + 8 > s->width >>1
1291 || src_y + (dxy>>1) + 8 > s->height>>1){
1292 emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
1293 ptr= s->edge_emu_buffer;
1294 emu=1;
1295 }
1296 }
1297 pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
1298
1299 ptr = ref_picture[2] + offset;
1300 if(emu){
1301 emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
1302 ptr= s->edge_emu_buffer;
1303 }
1304 pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
1305 break;
1306 case MV_TYPE_FIELD:
1307 if (s->picture_structure == PICT_FRAME) {
1308 /* top field */
1309 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1310 ref_picture, s->field_select[dir][0] ? s->linesize : 0,
1311 1, pix_op,
1312 s->mv[dir][0][0], s->mv[dir][0][1], 8);
1313 /* bottom field */
1314 mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
1315 ref_picture, s->field_select[dir][1] ? s->linesize : 0,
1316 1, pix_op,
1317 s->mv[dir][1][0], s->mv[dir][1][1], 8);
1318 } else {
1319
1320
1321 }
1322 break;
1323 }
1324 }
1325
1326
1327 /* put block[] to dest[] */
1328 static inline void put_dct(MpegEncContext *s,
1329 DCTELEM *block, int i, UINT8 *dest, int line_size)
1330 {
1331 if (!s->mpeg2)
1332 s->dct_unquantize(s, block, i, s->qscale);
1333 ff_idct_put (dest, line_size, block);
1334 }
1335
1336 /* add block[] to dest[] */
1337 static inline void add_dct(MpegEncContext *s,
1338 DCTELEM *block, int i, UINT8 *dest, int line_size)
1339 {
1340 if (s->block_last_index[i] >= 0) {
1341 ff_idct_add (dest, line_size, block);
1342 }
1343 }
1344
1345 static inline void add_dequant_dct(MpegEncContext *s,
1346 DCTELEM *block, int i, UINT8 *dest, int line_size)
1347 {
1348 if (s->block_last_index[i] >= 0) {
1349 s->dct_unquantize(s, block, i, s->qscale);
1350
1351 ff_idct_add (dest, line_size, block);
1352 }
1353 }
1354
1355 /**
1356 * cleans dc, ac, coded_block for the current non intra MB
1357 */
1358 void ff_clean_intra_table_entries(MpegEncContext *s)
1359 {
1360 int wrap = s->block_wrap[0];
1361 int xy = s->block_index[0];
1362
1363 s->dc_val[0][xy ] =
1364 s->dc_val[0][xy + 1 ] =
1365 s->dc_val[0][xy + wrap] =
1366 s->dc_val[0][xy + 1 + wrap] = 1024;
1367 /* ac pred */
1368 memset(s->ac_val[0][xy ], 0, 32 * sizeof(INT16));
1369 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(INT16));
1370 if (s->msmpeg4_version>=3) {
1371 s->coded_block[xy ] =
1372 s->coded_block[xy + 1 ] =
1373 s->coded_block[xy + wrap] =
1374 s->coded_block[xy + 1 + wrap] = 0;
1375 }
1376 /* chroma */
1377 wrap = s->block_wrap[4];
1378 xy = s->mb_x + 1 + (s->mb_y + 1) * wrap;
1379 s->dc_val[1][xy] =
1380 s->dc_val[2][xy] = 1024;
1381 /* ac pred */
1382 memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
1383 memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
1384
1385 s->mbintra_table[s->mb_x + s->mb_y*s->mb_width]= 0;
1386 }
1387
1388 /* generic function called after a macroblock has been parsed by the
1389 decoder or after it has been encoded by the encoder.
1390
1391 Important variables used:
1392 s->mb_intra : true if intra macroblock
1393 s->mv_dir : motion vector direction
1394 s->mv_type : motion vector type
1395 s->mv : motion vector
1396 s->interlaced_dct : true if interlaced dct used (mpeg2)
1397 */
1398 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
1399 {
1400 int mb_x, mb_y;
1401 const int mb_xy = s->mb_y * s->mb_width + s->mb_x;
1402
1403 mb_x = s->mb_x;
1404 mb_y = s->mb_y;
1405
1406 #ifdef FF_POSTPROCESS
1407 /* Obsolete. Exists for compatibility with mplayer only. */
1408 quant_store[mb_y][mb_x]=s->qscale;
1409 //printf("[%02d][%02d] %d\n",mb_x,mb_y,s->qscale);
1410 #else
1411 if(s->avctx->quant_store) s->avctx->quant_store[mb_y*s->avctx->qstride+mb_x] = s->qscale;
1412 #endif
1413
1414 /* update DC predictors for P macroblocks */
1415 if (!s->mb_intra) {
1416 if (s->h263_pred || s->h263_aic) {
1417 if(s->mbintra_table[mb_xy])
1418 ff_clean_intra_table_entries(s);
1419 } else {
1420 s->last_dc[0] =
1421 s->last_dc[1] =
1422 s->last_dc[2] = 128 << s->intra_dc_precision;
1423 }
1424 }
1425 else if (s->h263_pred || s->h263_aic)
1426 s->mbintra_table[mb_xy]=1;
1427
1428 /* update motion predictor, not for B-frames as they need the motion_val from the last P/S-Frame */
1429 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE) { //FIXME move into h263.c if possible, format specific stuff shouldnt be here
1430 int motion_x, motion_y;
1431
1432 const int wrap = s->block_wrap[0];
1433 const int xy = s->block_index[0];
1434 if (s->mb_intra) {
1435 motion_x = 0;
1436 motion_y = 0;
1437 goto motion_init;
1438 } else if (s->mv_type == MV_TYPE_16X16) {
1439 motion_x = s->mv[0][0][0];
1440 motion_y = s->mv[0][0][1];
1441 motion_init:
1442 /* no update if 8X8 because it has been done during parsing */
1443 s->motion_val[xy][0] = motion_x;
1444 s->motion_val[xy][1] = motion_y;
1445 s->motion_val[xy + 1][0] = motion_x;
1446 s->motion_val[xy + 1][1] = motion_y;
1447 s->motion_val[xy + wrap][0] = motion_x;
1448 s->motion_val[xy + wrap][1] = motion_y;
1449 s->motion_val[xy + 1 + wrap][0] = motion_x;
1450 s->motion_val[xy + 1 + wrap][1] = motion_y;
1451 }
1452 }
1453
1454 if (!(s->encoding && (s->intra_only || s->pict_type==B_TYPE))) {
1455 UINT8 *dest_y, *dest_cb, *dest_cr;
1456 int dct_linesize, dct_offset;
1457 op_pixels_func *op_pix;
1458 qpel_mc_func *op_qpix;
1459
1460 /* avoid copy if macroblock skipped in last frame too
1461 dont touch it for B-frames as they need the skip info from the next p-frame */
1462 if (s->pict_type != B_TYPE) {
1463 UINT8 *mbskip_ptr = &s->mbskip_table[mb_xy];
1464 if (s->mb_skiped) {
1465 s->mb_skiped = 0;
1466
1467 (*mbskip_ptr) ++; /* indicate that this time we skiped it */
1468 if(*mbskip_ptr >99) *mbskip_ptr= 99;
1469
1470 /* if previous was skipped too, then nothing to do !
1471 skip only during decoding as we might trash the buffers during encoding a bit */
1472 if (*mbskip_ptr >= s->ip_buffer_count && !s->encoding)
1473 goto the_end;
1474 } else {
1475 *mbskip_ptr = 0; /* not skipped */
1476 }
1477 }
1478
1479 dest_y = s->current_picture [0] + (mb_y * 16* s->linesize ) + mb_x * 16;
1480 dest_cb = s->current_picture[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
1481 dest_cr = s->current_picture[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
1482
1483 if (s->interlaced_dct) {
1484 dct_linesize = s->linesize * 2;
1485 dct_offset = s->linesize;
1486 } else {
1487 dct_linesize = s->linesize;
1488 dct_offset = s->linesize * 8;
1489 }
1490
1491 if (!s->mb_intra) {
1492 /* motion handling */
1493 /* decoding or more than one mb_type (MC was allready done otherwise) */
1494 if((!s->encoding) || (s->mb_type[mb_xy]&(s->mb_type[mb_xy]-1))){
1495 if ((!s->no_rounding) || s->pict_type==B_TYPE){
1496 op_pix = put_pixels_tab;
1497 op_qpix= qpel_mc_rnd_tab;
1498 }else{
1499 op_pix = put_no_rnd_pixels_tab;
1500 op_qpix= qpel_mc_no_rnd_tab;
1501 }
1502
1503 if (s->mv_dir & MV_DIR_FORWARD) {
1504 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
1505 if ((!s->no_rounding) || s->pict_type==B_TYPE)
1506 op_pix = avg_pixels_tab;
1507 else
1508 op_pix = avg_no_rnd_pixels_tab;
1509 }
1510 if (s->mv_dir & MV_DIR_BACKWARD) {
1511 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1512 }
1513 }
1514
1515 /* skip dequant / idct if we are really late ;) */
1516 if(s->hurry_up>1) goto the_end;
1517
1518 /* add dct residue */
1519 if(s->encoding || !(s->mpeg2 || s->h263_msmpeg4 || s->codec_id==CODEC_ID_MPEG4)){
1520 add_dequant_dct(s, block[0], 0, dest_y, dct_linesize);
1521 add_dequant_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1522 add_dequant_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1523 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1524
1525 if(!(s->flags&CODEC_FLAG_GRAY)){
1526 add_dequant_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1527 add_dequant_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1528 }
1529 } else {
1530 add_dct(s, block[0], 0, dest_y, dct_linesize);
1531 add_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1532 add_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1533 add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1534
1535 if(!(s->flags&CODEC_FLAG_GRAY)){
1536 add_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1537 add_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1538 }
1539 }
1540 } else {
1541 /* dct only in intra block */
1542 put_dct(s, block[0], 0, dest_y, dct_linesize);
1543 put_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1544 put_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1545 put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1546
1547 if(!(s->flags&CODEC_FLAG_GRAY)){
1548 put_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1549 put_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1550 }
1551 }
1552 }
1553 the_end:
1554 emms_c(); //FIXME remove
1555 }
1556
1557 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold, int skip_dc)
1558 {
1559 static const char tab[64]=
1560 {3,2,2,1,1,1,1,1,
1561 1,1,1,1,1,1,1,1,
1562 1,1,1,1,1,1,1,1,
1563 0,0,0,0,0,0,0,0,
1564 0,0,0,0,0,0,0,0,
1565 0,0,0,0,0,0,0,0,
1566 0,0,0,0,0,0,0,0,
1567 0,0,0,0,0,0,0,0};
1568 int score=0;
1569 int run=0;
1570 int i;
1571 DCTELEM *block= s->block[n];
1572 const int last_index= s->block_last_index[n];
1573
1574 if(skip_dc) skip_dc=1;
1575
1576 /* are all which we could set to zero are allready zero? */
1577 if(last_index<=skip_dc - 1) return;
1578
1579 for(i=0; i<=last_index; i++){
1580 const int j = zigzag_direct[i];
1581 const int level = ABS(block[j]);
1582 if(level==1){
1583 if(skip_dc && i==0) continue;
1584 score+= tab[run];
1585 run=0;
1586 }else if(level>1){
1587 return;
1588 }else{
1589 run++;
1590 }
1591 }
1592 if(score >= threshold) return;
1593 for(i=skip_dc; i<=last_index; i++){
1594 const int j = zigzag_direct[i];
1595 block[j]=0;
1596 }
1597 if(block[0]) s->block_last_index[n]= 0;
1598 else s->block_last_index[n]= -1;
1599 }
1600
1601 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1602 {
1603 int i;
1604 const int maxlevel= s->max_qcoeff;
1605 const int minlevel= s->min_qcoeff;
1606
1607 for(i=0;i<=last_index; i++){
1608 const int j = zigzag_direct[i];
1609 int level = block[j];
1610
1611 if (level>maxlevel) level=maxlevel;
1612 else if(level<minlevel) level=minlevel;
1613 block[j]= level;
1614 }
1615 }
1616
1617 static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1618 {
1619 const int mb_x= s->mb_x;
1620 const int mb_y= s->mb_y;
1621 int i;
1622 int skip_dct[6];
1623 #if 0
1624 if (s->interlaced_dct) {
1625 dct_linesize = s->linesize * 2;
1626 dct_offset = s->linesize;
1627 } else {
1628 dct_linesize = s->linesize;
1629 dct_offset = s->linesize * 8;
1630 }
1631 #endif
1632 for(i=0; i<6; i++) skip_dct[i]=0;
1633
1634 if (s->mb_intra) {
1635 UINT8 *ptr;
1636 int wrap;
1637
1638 wrap = s->linesize;
1639 ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
1640 get_pixels(s->block[0], ptr , wrap);
1641 get_pixels(s->block[1], ptr + 8, wrap);
1642 get_pixels(s->block[2], ptr + 8 * wrap , wrap);
1643 get_pixels(s->block[3], ptr + 8 * wrap + 8, wrap);
1644
1645 if(s->flags&CODEC_FLAG_GRAY){
1646 skip_dct[4]= 1;
1647 skip_dct[5]= 1;
1648 }else{
1649 wrap >>=1;
1650 ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
1651 get_pixels(s->block[4], ptr, wrap);
1652
1653 ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
1654 get_pixels(s->block[5], ptr, wrap);
1655 }
1656 }else{
1657 op_pixels_func *op_pix;
1658 qpel_mc_func *op_qpix;
1659 UINT8 *dest_y, *dest_cb, *dest_cr;
1660 UINT8 *ptr_y, *ptr_cb, *ptr_cr;
1661 int wrap_y, wrap_c;
1662
1663 dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize ) + mb_x * 16;
1664 dest_cb = s->current_picture[1] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
1665 dest_cr = s->current_picture[2] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
1666 wrap_y = s->linesize;
1667 wrap_c = wrap_y>>1;
1668 ptr_y = s->new_picture[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1669 ptr_cb = s->new_picture[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
1670 ptr_cr = s->new_picture[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
1671
1672 if ((!s->no_rounding) || s->pict_type==B_TYPE){
1673 op_pix = put_pixels_tab;
1674 op_qpix= qpel_mc_rnd_tab;
1675 }else{
1676 op_pix = put_no_rnd_pixels_tab;
1677 op_qpix= qpel_mc_no_rnd_tab;
1678 }
1679
1680 if (s->mv_dir & MV_DIR_FORWARD) {
1681 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
1682 if ((!s->no_rounding) || s->pict_type==B_TYPE)
1683 op_pix = avg_pixels_tab;
1684 else
1685 op_pix = avg_no_rnd_pixels_tab;
1686 }
1687 if (s->mv_dir & MV_DIR_BACKWARD) {
1688 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1689 }
1690
1691 diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1692 diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1693 diff_pixels(s->block[2], ptr_y + 8 * wrap_y , dest_y + 8 * wrap_y , wrap_y);
1694 diff_pixels(s->block[3], ptr_y + 8 * wrap_y + 8, dest_y + 8 * wrap_y + 8, wrap_y);
1695
1696 if(s->flags&CODEC_FLAG_GRAY){
1697 skip_dct[4]= 1;
1698 skip_dct[5]= 1;
1699 }else{
1700 diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1701 diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1702 }
1703
1704 /* pre quantization */
1705 if(s->mc_mb_var[s->mb_width*mb_y+ mb_x]<2*s->qscale*s->qscale){
1706 if(pix_abs8x8(ptr_y , dest_y , wrap_y) < 20*s->qscale) skip_dct[0]= 1;
1707 if(pix_abs8x8(ptr_y + 8, dest_y + 8, wrap_y) < 20*s->qscale) skip_dct[1]= 1;
1708 if(pix_abs8x8(ptr_y + 8*wrap_y , dest_y + 8*wrap_y , wrap_y) < 20*s->qscale) skip_dct[2]= 1;
1709 if(pix_abs8x8(ptr_y + 8*wrap_y + 8, dest_y + 8*wrap_y + 8, wrap_y) < 20*s->qscale) skip_dct[3]= 1;
1710 if(pix_abs8x8(ptr_cb , dest_cb , wrap_y) < 20*s->qscale) skip_dct[4]= 1;
1711 if(pix_abs8x8(ptr_cr , dest_cr , wrap_y) < 20*s->qscale) skip_dct[5]= 1;
1712 #if 0
1713 {
1714 static int stat[7];
1715 int num=0;
1716 for(i=0; i<6; i++)
1717 if(skip_dct[i]) num++;
1718 stat[num]++;
1719
1720 if(s->mb_x==0 && s->mb_y==0){
1721 for(i=0; i<7; i++){
1722 printf("%6d %1d\n", stat[i], i);
1723 }
1724 }
1725 }
1726 #endif
1727 }
1728
1729 }
1730
1731 #if 0
1732 {
1733 float adap_parm;
1734
1735 adap_parm = ((s->avg_mb_var << 1) + s->mb_var[s->mb_width*mb_y+mb_x] + 1.0) /
1736 ((s->mb_var[s->mb_width*mb_y+mb_x] << 1) + s->avg_mb_var + 1.0);
1737
1738 printf("\ntype=%c qscale=%2d adap=%0.2f dquant=%4.2f var=%4d avgvar=%4d",
1739 (s->mb_type[s->mb_width*mb_y+mb_x] > 0) ? 'I' : 'P',
1740 s->qscale, adap_parm, s->qscale*adap_parm,
1741 s->mb_var[s->mb_width*mb_y+mb_x], s->avg_mb_var);
1742 }
1743 #endif
1744 /* DCT & quantize */
1745 if(s->out_format==FMT_MJPEG){
1746 for(i=0;i<6;i++) {
1747 int overflow;
1748 s->block_last_index[i] = dct_quantize(s, s->block[i], i, 8, &overflow);
1749 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1750 }
1751 }else{
1752 for(i=0;i<6;i++) {
1753 if(!skip_dct[i]){
1754 int overflow;
1755 s->block_last_index[i] = dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1756 // FIXME we could decide to change to quantizer instead of clipping
1757 // JS: I don't think that would be a good idea it could lower quality instead
1758 // of improve it. Just INTRADC clipping deserves changes in quantizer
1759 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1760 }else
1761 s->block_last_index[i]= -1;
1762 }
1763 if(s->luma_elim_threshold && !s->mb_intra)
1764 for(i=0; i<4; i++)
1765 dct_single_coeff_elimination(s, i, s->luma_elim_threshold, 0);
1766 if(s->chroma_elim_threshold && !s->mb_intra)
1767 for(i=4; i<6; i++)
1768 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold, 1);
1769 }
1770
1771 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1772 s->block_last_index[4]=
1773 s->block_last_index[5]= 0;
1774 s->block[4][0]=
1775 s->block[5][0]= 128;
1776 }
1777
1778 /* huffman encode */
1779 switch(s->out_format) {
1780 case FMT_MPEG1:
1781 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1782 break;
1783 case FMT_H263:
1784 if (s->h263_msmpeg4)
1785 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1786 else if(s->h263_pred)
1787 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1788 else
1789 h263_encode_mb(s, s->block, motion_x, motion_y);
1790 break;
1791 case FMT_MJPEG:
1792 mjpeg_encode_mb(s, s->block);
1793 break;
1794 }
1795 }
1796
1797 void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length)
1798 {
1799 int bytes= length>>4;
1800 int bits= length&15;
1801 int i;
1802
1803 if(length==0) return;
1804
1805 for(i=0; i<bytes; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
1806 put_bits(pb, bits, be2me_16(((uint16_t*)src)[i])>>(16-bits));
1807 }
1808
1809 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1810 int i;
1811
1812 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1813
1814 /* mpeg1 */
1815 d->mb_incr= s->mb_incr;
1816 for(i=0; i<3; i++)
1817 d->last_dc[i]= s->last_dc[i];
1818
1819 /* statistics */
1820 d->mv_bits= s->mv_bits;
1821 d->i_tex_bits= s->i_tex_bits;
1822 d->p_tex_bits= s->p_tex_bits;
1823 d->i_count= s->i_count;
1824 d->p_count= s->p_count;
1825 d->skip_count= s->skip_count;
1826 d->misc_bits= s->misc_bits;
1827 d->last_bits= 0;
1828
1829 d->mb_skiped= s->mb_skiped;
1830 }
1831
1832 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1833 int i;
1834
1835 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1836 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1837
1838 /* mpeg1 */
1839 d->mb_incr= s->mb_incr;
1840 for(i=0; i<3; i++)
1841 d->last_dc[i]= s->last_dc[i];
1842
1843 /* statistics */
1844 d->mv_bits= s->mv_bits;
1845 d->i_tex_bits= s->i_tex_bits;
1846 d->p_tex_bits= s->p_tex_bits;
1847 d->i_count= s->i_count;
1848 d->p_count= s->p_count;
1849 d->skip_count= s->skip_count;
1850 d->misc_bits= s->misc_bits;
1851
1852 d->mb_intra= s->mb_intra;
1853 d->mb_skiped= s->mb_skiped;
1854 d->mv_type= s->mv_type;
1855 d->mv_dir= s->mv_dir;
1856 d->pb= s->pb;
1857 if(s->data_partitioning){
1858 d->pb2= s->pb2;
1859 d->tex_pb= s->tex_pb;
1860 }
1861 d->block= s->block;
1862 for(i=0; i<6; i++)
1863 d->block_last_index[i]= s->block_last_index[i];
1864 }
1865
1866 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1867 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1868 int *dmin, int *next_block, int motion_x, int motion_y)
1869 {
1870 int bits_count;
1871
1872 copy_context_before_encode(s, backup, type);
1873
1874 s->block= s->blocks[*next_block];
1875 s->pb= pb[*next_block];
1876 if(s->data_partitioning){
1877 s->pb2 = pb2 [*next_block];
1878 s->tex_pb= tex_pb[*next_block];
1879 }
1880
1881 encode_mb(s, motion_x, motion_y);
1882
1883 bits_count= get_bit_count(&s->pb);
1884 if(s->data_partitioning){
1885 bits_count+= get_bit_count(&s->pb2);
1886 bits_count+= get_bit_count(&s->tex_pb);
1887 }
1888
1889 if(bits_count<*dmin){
1890 *dmin= bits_count;
1891 *next_block^=1;
1892
1893 copy_context_after_encode(best, s, type);
1894 }
1895 }
1896
1897 static void encode_picture(MpegEncContext *s, int picture_number)
1898 {
1899 int mb_x, mb_y, last_gob, pdif = 0;
1900 int i;
1901 int bits;
1902 MpegEncContext best_s, backup_s;
1903 UINT8 bit_buf[2][3000];
1904 UINT8 bit_buf2[2][3000];
1905 UINT8 bit_buf_tex[2][3000];
1906 PutBitContext pb[2], pb2[2], tex_pb[2];
1907
1908 for(i=0; i<2; i++){
1909 init_put_bits(&pb [i], bit_buf [i], 3000, NULL, NULL);
1910 init_put_bits(&pb2 [i], bit_buf2 [i], 3000, NULL, NULL);
1911 init_put_bits(&tex_pb[i], bit_buf_tex[i], 3000, NULL, NULL);
1912 }
1913
1914 s->picture_number = picture_number;
1915
1916 s->block_wrap[0]=
1917 s->block_wrap[1]=
1918 s->block_wrap[2]=
1919 s->block_wrap[3]= s->mb_width*2 + 2;
1920 s->block_wrap[4]=
1921 s->block_wrap[5]= s->mb_width + 2;
1922
1923 /* Reset the average MB variance */
1924 s->mb_var_sum = 0;
1925 s->mc_mb_var_sum = 0;
1926
1927 /* we need to initialize some time vars before we can encode b-frames */
1928 if (s->h263_pred && !s->h263_msmpeg4)
1929 ff_set_mpeg4_time(s, s->picture_number);
1930
1931 /* Estimate motion for every MB */
1932 if(s->pict_type != I_TYPE){
1933 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
1934 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
1935 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
1936 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
1937 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
1938 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1939 s->mb_x = mb_x;
1940 s->mb_y = mb_y;
1941 s->block_index[0]+=2;
1942 s->block_index[1]+=2;
1943 s->block_index[2]+=2;
1944 s->block_index[3]+=2;
1945
1946 /* compute motion vector & mb_type and store in context */
1947 if(s->pict_type==B_TYPE)
1948 ff_estimate_b_frame_motion(s, mb_x, mb_y);
1949 else
1950 ff_estimate_p_frame_motion(s, mb_x, mb_y);
1951 // s->mb_type[mb_y*s->mb_width + mb_x]=MB_TYPE_INTER;
1952 }
1953 }
1954 emms_c();
1955 }else /* if(s->pict_type == I_TYPE) */{
1956 /* I-Frame */
1957 //FIXME do we need to zero them?
1958 memset(s->motion_val[0], 0, sizeof(INT16)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
1959 memset(s->p_mv_table , 0, sizeof(INT16)*(s->mb_width+2)*(s->mb_height+2)*2);
1960 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
1961 }
1962
1963 if(s->mb_var_sum < s->mc_mb_var_sum && s->pict_type == P_TYPE){ //FIXME subtract MV bits
1964 s->pict_type= I_TYPE;
1965 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
1966 if(s->max_b_frames==0){
1967 s->input_pict_type= I_TYPE;
1968 s->input_picture_in_gop_number=0;
1969 }
1970 //printf("Scene change detected, encoding as I Frame\n");
1971 }
1972
1973 if(s->pict_type==P_TYPE || s->pict_type==S_TYPE)
1974 s->f_code= ff_get_best_fcode(s, s->p_mv_table, MB_TYPE_INTER);
1975 ff_fix_long_p_mvs(s);
1976 if(s->pict_type==B_TYPE){
1977 s->f_code= ff_get_best_fcode(s, s->b_forw_mv_table, MB_TYPE_FORWARD);
1978 s->b_code= ff_get_best_fcode(s, s->b_back_mv_table, MB_TYPE_BACKWARD);
1979
1980 ff_fix_long_b_mvs(s, s->b_forw_mv_table, s->f_code, MB_TYPE_FORWARD);
1981 ff_fix_long_b_mvs(s, s->b_back_mv_table, s->b_code, MB_TYPE_BACKWARD);
1982 ff_fix_long_b_mvs(s, s->b_bidir_forw_mv_table, s->f_code, MB_TYPE_BIDIR);
1983 ff_fix_long_b_mvs(s, s->b_bidir_back_mv_table, s->b_code, MB_TYPE_BIDIR);
1984 }
1985
1986 //printf("f_code %d ///\n", s->f_code);
1987
1988 // printf("%d %d\n", s->avg_mb_var, s->mc_mb_var);
1989
1990 if(s->flags&CODEC_FLAG_PASS2)
1991 s->qscale = ff_rate_estimate_qscale_pass2(s);
1992 else if (!s->fixed_qscale)
1993 s->qscale = ff_rate_estimate_qscale(s);
1994
1995 if (s->out_format == FMT_MJPEG) {
1996 /* for mjpeg, we do include qscale in the matrix */
1997 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
1998 for(i=1;i<64;i++)
1999 s->intra_matrix[i] = CLAMP_TO_8BIT((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2000 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16,
2001 s->q_intra_matrix16_bias, s->intra_matrix, s->intra_quant_bias);
2002 }
2003
2004 s->last_bits= get_bit_count(&s->pb);
2005 switch(s->out_format) {
2006 case FMT_MJPEG:
2007 mjpeg_picture_header(s);
2008 break;
2009 case FMT_H263:
2010 if (s->h263_msmpeg4)
2011 msmpeg4_encode_picture_header(s, picture_number);
2012 else if (s->h263_pred)
2013 mpeg4_encode_picture_header(s, picture_number);
2014 else if (s->h263_rv10)
2015 rv10_encode_picture_header(s, picture_number);
2016 else
2017 h263_encode_picture_header(s, picture_number);
2018 break;
2019 case FMT_MPEG1:
2020 mpeg1_encode_picture_header(s, picture_number);
2021 break;
2022 }
2023 bits= get_bit_count(&s->pb);
2024 s->header_bits= bits - s->last_bits;
2025 s->last_bits= bits;
2026 s->mv_bits=0;
2027 s->misc_bits=0;
2028 s->i_tex_bits=0;
2029 s->p_tex_bits=0;
2030 s->i_count=0;
2031 s->p_count=0;
2032 s->skip_count=0;
2033
2034 /* init last dc values */
2035 /* note: quant matrix value (8) is implied here */
2036 s->last_dc[0] = 128;
2037 s->last_dc[1] = 128;
2038 s->last_dc[2] = 128;
2039 s->mb_incr = 1;
2040 s->last_mv[0][0][0] = 0;
2041 s->last_mv[0][0][1] = 0;
2042
2043 /* Get the GOB height based on picture height */
2044 if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4) {
2045 if (s->height <= 400)
2046 s->gob_index = 1;
2047 else if (s->height <= 800)
2048 s->gob_index = 2;
2049 else
2050 s->gob_index = 4;
2051 }else if(s->codec_id==CODEC_ID_MPEG4){
2052 s->gob_index = 1;
2053 }
2054
2055 if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
2056 ff_mpeg4_init_partitions(s);
2057
2058 s->resync_mb_x=0;
2059 s->resync_mb_y=0;
2060 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
2061 /* Put GOB header based on RTP MTU for formats which support it per line (H263*)*/
2062 /* TODO: Put all this stuff in a separate generic function */
2063 if (s->rtp_mode) {
2064 if (!mb_y) {
2065 s->ptr_lastgob = s->pb.buf;
2066 s->ptr_last_mb_line = s->pb.buf;
2067 } else if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4 && !(mb_y % s->gob_index)) {
2068 // MN: we could move the space check from h263 -> here, as its not h263 specific
2069 last_gob = h263_encode_gob_header(s, mb_y);
2070 if (last_gob) {
2071 s->first_slice_line = 1;
2072 }else{
2073 /*MN: we reset it here instead at the end of each line cuz mpeg4 can have
2074 slice lines starting & ending in the middle*/
2075 s->first_slice_line = 0;
2076 }
2077 }
2078 }
2079
2080 s->y_dc_scale= s->y_dc_scale_table[ s->qscale ];
2081 s->c_dc_scale= s->c_dc_scale_table[ s->qscale ];
2082
2083 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
2084 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
2085 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
2086 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
2087 s->block_index[4]= s->block_wrap[4]*(mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2);
2088 s->block_index[5]= s->block_wrap[4]*(mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);
2089 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2090 const int mb_type= s->mb_type[mb_y * s->mb_width + mb_x];
2091 const int xy= (mb_y+1) * (s->mb_width+2) + mb_x + 1;
2092 // int d;
2093 int dmin=10000000;
2094
2095 s->mb_x = mb_x;
2096 s->mb_y = mb_y;
2097 s->block_index[0]+=2;
2098 s->block_index[1]+=2;
2099 s->block_index[2]+=2;
2100 s->block_index[3]+=2;
2101 s->block_index[4]++;
2102 s->block_index[5]++;
2103
2104 /* write gob / video packet header for formats which support it at any MB (MPEG4) */
2105 if(s->rtp_mode && s->mb_y>0 && s->codec_id==CODEC_ID_MPEG4){
2106 int pdif= pbBufPtr(&s->pb) - s->ptr_lastgob;
2107
2108 //the *2 is there so we stay below the requested size
2109 if(pdif + s->mb_line_avgsize/s->mb_width >= s->rtp_payload_size){
2110 if(s->codec_id==CODEC_ID_MPEG4){
2111 if(s->data_partitioning && s->pict_type!=B_TYPE){
2112 ff_mpeg4_merge_partitions(s);
2113 ff_mpeg4_init_partitions(s);
2114 }
2115 ff_mpeg4_encode_video_packet_header(s);
2116
2117 if(s->flags&CODEC_FLAG_PASS1){
2118 int bits= get_bit_count(&s->pb);
2119 s->misc_bits+= bits - s->last_bits;
2120 s->last_bits= bits;
2121 }
2122 ff_mpeg4_clean_buffers(s);
2123 }
2124 s->ptr_lastgob = pbBufPtr(&s->pb);
2125 s->first_slice_line=1;
2126 s->resync_mb_x=mb_x;
2127 s->resync_mb_y=mb_y;
2128 }
2129
2130 if( (s->resync_mb_x == s->mb_x)
2131 && s->resync_mb_y+1 == s->mb_y){
2132 s->first_slice_line=0;
2133 }
2134 }
2135
2136 if(mb_type & (mb_type-1)){ // more than 1 MB type possible
2137 int next_block=0;
2138 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2139
2140 copy_context_before_encode(&backup_s, s, -1);
2141 backup_s.pb= s->pb;
2142 best_s.data_partitioning= s->data_partitioning;
2143 if(s->data_partitioning){
2144 backup_s.pb2= s->pb2;
2145 backup_s.tex_pb= s->tex_pb;
2146 }
2147
2148 if(mb_type&MB_TYPE_INTER){
2149 s->mv_dir = MV_DIR_FORWARD;
2150 s->mv_type = MV_TYPE_16X16;
2151 s->mb_intra= 0;
2152 s->mv[0][0][0] = s->p_mv_table[xy][0];
2153 s->mv[0][0][1] = s->p_mv_table[xy][1];
2154 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER, pb, pb2, tex_pb,
2155 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2156 }
2157 if(mb_type&MB_TYPE_INTER4V){
2158 s->mv_dir = MV_DIR_FORWARD;
2159 s->mv_type = MV_TYPE_8X8;
2160 s->mb_intra= 0;
2161 for(i=0; i<4; i++){
2162 s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
2163 s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
2164 }
2165 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER4V, pb, pb2, tex_pb,
2166 &dmin, &next_block, 0, 0);
2167 }
2168 if(mb_type&MB_TYPE_FORWARD){
2169 s->mv_dir = MV_DIR_FORWARD;
2170 s->mv_type = MV_TYPE_16X16;
2171 s->mb_intra= 0;
2172 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2173 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2174 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_FORWARD, pb, pb2, tex_pb,
2175 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2176 }
2177 if(mb_type&MB_TYPE_BACKWARD){
2178 s->mv_dir = MV_DIR_BACKWARD;
2179 s->mv_type = MV_TYPE_16X16;
2180 s->mb_intra= 0;
2181 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2182 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2183 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2184 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2185 }
2186 if(mb_type&MB_TYPE_BIDIR){
2187 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2188 s->mv_type = MV_TYPE_16X16;
2189 s->mb_intra= 0;
2190 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2191 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2192 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2193 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2194 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BIDIR, pb, pb2, tex_pb,
2195 &dmin, &next_block, 0, 0);
2196 }
2197 if(mb_type&MB_TYPE_DIRECT){
2198 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2199 s->mv_type = MV_TYPE_16X16; //FIXME
2200 s->mb_intra= 0;
2201 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
2202 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
2203 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
2204 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
2205 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_DIRECT, pb, pb2, tex_pb,
2206 &dmin, &next_block, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
2207 }
2208 if(mb_type&MB_TYPE_INTRA){
2209 s->mv_dir = MV_DIR_FORWARD;
2210 s->mv_type = MV_TYPE_16X16;
2211 s->mb_intra= 1;
2212 s->mv[0][0][0] = 0;
2213 s->mv[0][0][1] = 0;
2214 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTRA, pb, pb2, tex_pb,
2215 &dmin, &next_block, 0, 0);
2216 /* force cleaning of ac/dc pred stuff if needed ... */
2217 if(s->h263_pred || s->h263_aic)
2218 s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
2219 }
2220 copy_context_after_encode(s, &best_s, -1);
2221
2222 pb_bits_count= get_bit_count(&s->pb);
2223 flush_put_bits(&s->pb);
2224 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2225 s->pb= backup_s.pb;
2226
2227 if(s->data_partitioning){
2228 pb2_bits_count= get_bit_count(&s->pb2);
2229 flush_put_bits(&s->pb2);
2230 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2231 s->pb2= backup_s.pb2;
2232
2233 tex_pb_bits_count= get_bit_count(&s->tex_pb);
2234 flush_put_bits(&s->tex_pb);
2235 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2236 s->tex_pb= backup_s.tex_pb;
2237 }
2238 s->last_bits= get_bit_count(&s->pb);
2239 } else {
2240 int motion_x, motion_y;
2241 s->mv_type=MV_TYPE_16X16;
2242 // only one MB-Type possible
2243 switch(mb_type){
2244 case MB_TYPE_INTRA:
2245 s->mv_dir = MV_DIR_FORWARD;
2246 s->mb_intra= 1;
2247 motion_x= s->mv[0][0][0] = 0;
2248 motion_y= s->mv[0][0][1] = 0;
2249 break;
2250 case MB_TYPE_INTER:
2251 s->mv_dir = MV_DIR_FORWARD;
2252 s->mb_intra= 0;
2253 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2254 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2255 break;
2256 case MB_TYPE_INTER4V:
2257 s->mv_dir = MV_DIR_FORWARD;
2258 s->mv_type = MV_TYPE_8X8;
2259 s->mb_intra= 0;
2260 for(i=0; i<4; i++){
2261 s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
2262 s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
2263 }
2264 motion_x= motion_y= 0;
2265 break;
2266 case MB_TYPE_DIRECT:
2267 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2268 s->mb_intra= 0;
2269 motion_x=s->b_direct_mv_table[xy][0];
2270 motion_y=s->b_direct_mv_table[xy][1];
2271 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
2272 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
2273 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
2274 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
2275 break;
2276 case MB_TYPE_BIDIR:
2277 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2278 s->mb_intra= 0;
2279 motion_x=0;
2280 motion_y=0;
2281 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2282 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2283 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2284 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2285 break;
2286 case MB_TYPE_BACKWARD:
2287 s->mv_dir = MV_DIR_BACKWARD;
2288 s->mb_intra= 0;
2289 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2290 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2291 break;
2292 case MB_TYPE_FORWARD:
2293 s->mv_dir = MV_DIR_FORWARD;
2294 s->mb_intra= 0;
2295 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2296 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2297 // printf(" %d %d ", motion_x, motion_y);
2298 break;
2299 default:
2300 motion_x=motion_y=0; //gcc warning fix
2301 printf("illegal MB type\n");
2302 }
2303 encode_mb(s, motion_x, motion_y);
2304 }
2305 /* clean the MV table in IPS frames for direct mode in B frames */
2306 if(s->mb_intra /* && I,P,S_TYPE */){
2307 s->p_mv_table[xy][0]=0;
2308 s->p_mv_table[xy][1]=0;
2309 }
2310
2311 MPV_decode_mb(s, s->block);
2312 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_width, get_bit_count(&s->pb));
2313 }
2314
2315
2316 /* Obtain average GOB size for RTP */
2317 if (s->rtp_mode) {
2318 if (!mb_y)
2319 s->mb_line_avgsize = pbBufPtr(&s->pb) - s->ptr_last_mb_line;
2320 else if (!(mb_y % s->gob_index)) {
2321 s->mb_line_avgsize = (s->mb_line_avgsize + pbBufPtr(&s->pb) - s->ptr_last_mb_line) >> 1;
2322 s->ptr_last_mb_line = pbBufPtr(&s->pb);
2323 }
2324 //fprintf(stderr, "\nMB line: %d\tSize: %u\tAvg. Size: %u", s->mb_y,
2325 // (s->pb.buf_ptr - s->ptr_last_mb_line), s->mb_line_avgsize);
2326 if(s->codec_id!=CODEC_ID_MPEG4) s->first_slice_line = 0; //FIXME clean
2327 }
2328 }
2329 emms_c();
2330
2331 if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
2332 ff_mpeg4_merge_partitions(s);
2333
2334 if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
2335 msmpeg4_encode_ext_header(s);
2336
2337 if(s->codec_id==CODEC_ID_MPEG4)
2338 ff_mpeg4_stuffing(&s->pb);
2339
2340 //if (s->gob_number)
2341 // fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
2342
2343 /* Send the last GOB if RTP */
2344 if (s->rtp_mode) {
2345 flush_put_bits(&s->pb);
2346 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2347 /* Call the RTP callback to send the last GOB */
2348 if (s->rtp_callback)
2349 s->rtp_callback(s->ptr_lastgob, pdif, s->gob_number);
2350 s->ptr_lastgob = pbBufPtr(&s->pb);
2351 //fprintf(stderr,"\nGOB: %2d size: %d (last)", s->gob_number, pdif);
2352 }
2353 }
2354
2355 static int dct_quantize_c(MpegEncContext *s,
2356 DCTELEM *block, int n,
2357 int qscale, int *overflow)
2358 {
2359 int i, j, level, last_non_zero, q;
2360 const int *qmat;
2361 int bias;
2362 int max=0;
2363 unsigned int threshold1, threshold2;
2364
2365 av_fdct (block);
2366
2367 /* we need this permutation so that we correct the IDCT
2368 permutation. will be moved into DCT code */
2369 block_permute(block);
2370
2371 if (s->mb_intra) {
2372 if (!s->h263_aic) {
2373 if (n < 4)
2374 q = s->y_dc_scale;
2375 else
2376 q = s->c_dc_scale;
2377 q = q << 3;
2378 } else
2379 /* For AIC we skip quant/dequant of INTRADC */
2380 q = 1 << 3;
2381
2382 /* note: block[0] is assumed to be positive */
2383 block[0] = (block[0] + (q >> 1)) / q;
2384 i = 1;
2385 last_non_zero = 0;
2386 qmat = s->q_intra_matrix[qscale];
2387 bias= s->intra_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
2388 } else {
2389 i = 0;
2390 last_non_zero = -1;
2391 qmat = s->q_inter_matrix[qscale];
2392 bias= s->inter_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
2393 }
2394 threshold1= (1<<(QMAT_SHIFT - 3)) - bias - 1;
2395 threshold2= threshold1<<1;
2396
2397 for(;i<64;i++) {
2398 j = zigzag_direct[i];
2399 level = block[j];
2400 level = level * qmat[j];
2401
2402 // if( bias+level >= (1<<(QMAT_SHIFT - 3))
2403 // || bias-level >= (1<<(QMAT_SHIFT - 3))){
2404 if(((unsigned)(level+threshold1))>threshold2){
2405 if(level>0){
2406 level= (bias + level)>>(QMAT_SHIFT - 3);
2407 block[j]= level;
2408 }else{
2409 level= (bias - level)>>(QMAT_SHIFT - 3);
2410 block[j]= -level;
2411 }
2412 max |=level;
2413 last_non_zero = i;
2414 }else{
2415 block[j]=0;
2416 }
2417 }
2418 *overflow= s->max_qcoeff < max; //overflow might have happend
2419
2420 return last_non_zero;
2421 }
2422
2423 static void dct_unquantize_mpeg1_c(MpegEncContext *s,
2424 DCTELEM *block, int n, int qscale)
2425 {
2426 int i, level, nCoeffs;
2427 const UINT16 *quant_matrix;
2428
2429 if(s->alternate_scan) nCoeffs= 64;
2430 else nCoeffs= s->block_last_index[n]+1;
2431
2432 if (s->mb_intra) {
2433 if (n < 4)
2434 block[0] = block[0] * s->y_dc_scale;
2435 else
2436 block[0] = block[0] * s->c_dc_scale;
2437 /* XXX: only mpeg1 */
2438 quant_matrix = s->intra_matrix;
2439 for(i=1;i<nCoeffs;i++) {
2440 int j= zigzag_direct[i];
2441 level = block[j];
2442 if (level) {
2443 if (level < 0) {
2444 level = -level;
2445 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2446 level = (level - 1) | 1;
2447 level = -level;
2448 } else {
2449 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2450 level = (level - 1) | 1;
2451 }
2452 #ifdef PARANOID
2453 if (level < -2048 || level > 2047)
2454 fprintf(stderr, "unquant error %d %d\n", i, level);
2455 #endif
2456 block[j] = level;
2457 }
2458 }
2459 } else {
2460 i = 0;
2461 quant_matrix = s->inter_matrix;
2462 for(;i<nCoeffs;i++) {
2463 int j= zigzag_direct[i];
2464 level = block[j];
2465 if (level) {
2466 if (level < 0) {
2467 level = -level;
2468 level = (((level << 1) + 1) * qscale *
2469 ((int) (quant_matrix[j]))) >> 4;
2470 level = (level - 1) | 1;
2471 level = -level;
2472 } else {
2473 level = (((level << 1) + 1) * qscale *
2474 ((int) (quant_matrix[j]))) >> 4;
2475 level = (level - 1) | 1;
2476 }
2477 #ifdef PARANOID
2478 if (level < -2048 || level > 2047)
2479 fprintf(stderr, "unquant error %d %d\n", i, level);
2480 #endif
2481 block[j] = level;
2482 }
2483 }
2484 }
2485 }
2486
2487 static void dct_unquantize_mpeg2_c(MpegEncContext *s,
2488 DCTELEM *block, int n, int qscale)
2489 {
2490 int i, level, nCoeffs;
2491 const UINT16 *quant_matrix;
2492
2493 if(s->alternate_scan) nCoeffs= 64;
2494 else nCoeffs= s->block_last_index[n]+1;
2495
2496 if (s->mb_intra) {
2497 if (n < 4)
2498 block[0] = block[0] * s->y_dc_scale;
2499 else
2500 block[0] = block[0] * s->c_dc_scale;
2501 quant_matrix = s->intra_matrix;
2502 for(i=1;i<nCoeffs;i++) {
2503 int j= zigzag_direct[i];
2504 level = block[j];
2505 if (level) {
2506 if (level < 0) {
2507 level = -level;
2508 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2509 level = -level;
2510 } else {
2511 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2512 }
2513 #ifdef PARANOID
2514 if (level < -2048 || level > 2047)
2515 fprintf(stderr, "unquant error %d %d\n", i, level);
2516 #endif
2517 block[j] = level;
2518 }
2519 }
2520 } else {
2521 int sum=-1;
2522 i = 0;
2523 quant_matrix = s->inter_matrix;
2524 for(;i<nCoeffs;i++) {
2525 int j= zigzag_direct[i];
2526 level = block[j];
2527 if (level) {
2528 if (level < 0) {
2529 level = -level;
2530 level = (((level << 1) + 1) * qscale *
2531 ((int) (quant_matrix[j]))) >> 4;
2532 level = -level;
2533 } else {
2534 level = (((level << 1) + 1) * qscale *
2535 ((int) (quant_matrix[j]))) >> 4;
2536 }
2537 #ifdef PARANOID
2538 if (level < -2048 || level > 2047)
2539 fprintf(stderr, "unquant error %d %d\n", i, level);
2540 #endif
2541 block[j] = level;
2542 sum+=level;
2543 }
2544 }
2545 block[63]^=sum&1;
2546 }
2547 }
2548
2549
2550 static void dct_unquantize_h263_c(MpegEncContext *s,
2551 DCTELEM *block, int n, int qscale)
2552 {
2553 int i, level, qmul, qadd;
2554 int nCoeffs;
2555
2556 if (s->mb_intra) {
2557 if (!s->h263_aic) {
2558 if (n < 4)
2559 block[0] = block[0] * s->y_dc_scale;
2560 else
2561 block[0] = block[0] * s->c_dc_scale;
2562 }
2563 i = 1;
2564 nCoeffs= 64; //does not allways use zigzag table
2565 } else {
2566 i = 0;
2567 nCoeffs= zigzag_end[ s->block_last_index[n] ];
2568 }
2569
2570 qmul = s->qscale << 1;
2571 if (s->h263_aic && s->mb_intra)
2572 qadd = 0;
2573 else
2574 qadd = (s->qscale - 1) | 1;
2575
2576 for(;i<nCoeffs;i++) {
2577 level = block[i];
2578 if (level) {
2579 if (level < 0) {
2580 level = level * qmul - qadd;
2581 } else {
2582 level = level * qmul + qadd;
2583 }
2584 #ifdef PARANOID
2585 if (level < -2048 || level > 2047)
2586 fprintf(stderr, "unquant error %d %d\n", i, level);
2587 #endif
2588 block[i] = level;
2589 }
2590 }
2591 }
2592
2593 static void remove_ac(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int mb_x, int mb_y)
2594 {
2595 int dc, dcb, dcr, y, i;
2596 for(i=0; i<4; i++){
2597 dc= s->dc_val[0][mb_x*2+1 + (i&1) + (mb_y*2+1 + (i>>1))*(s->mb_width*2+2)];
2598 for(y=0; y<8; y++){
2599 int x;
2600 for(x=0; x<8; x++){
2601 dest_y[x + (i&1)*8 + (y + (i>>1)*8)*s->linesize]= dc/8;
2602 }
2603 }
2604 }
2605 dcb = s->dc_val[1][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
2606 dcr= s->dc_val[2][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
2607 for(y=0; y<8; y++){
2608 int x;
2609 for(x=0; x<8; x++){
2610 dest_cb[x + y*(s->uvlinesize)]= dcb/8;
2611 dest_cr[x + y*(s->uvlinesize)]= dcr/8;
2612 }
2613 }
2614 }
2615
2616 /**
2617 * will conceal past errors, and allso drop b frames if needed
2618 *
2619 */
2620 void ff_conceal_past_errors(MpegEncContext *s, int unknown_pos)
2621 {
2622 int mb_x= s->mb_x;
2623 int mb_y= s->mb_y;
2624 int mb_dist=0;
2625 int i, intra_count=0, inter_count=0;
2626 int intra_conceal= s->msmpeg4_version ? 50 : 50; //FIXME finetune
2627 int inter_conceal= s->msmpeg4_version ? 50 : 50;
2628
2629 // for last block
2630 if(mb_x>=s->mb_width) mb_x= s->mb_width -1;
2631 if(mb_y>=s->mb_height) mb_y= s->mb_height-1;
2632
2633 if(s->decoding_error==0 && unknown_pos){
2634 if(s->data_partitioning && s->pict_type!=B_TYPE)
2635 s->decoding_error= DECODING_AC_LOST;
2636 else
2637 s->decoding_error= DECODING_DESYNC;
2638 }
2639
2640 if(s->decoding_error==DECODING_DESYNC && s->pict_type!=B_TYPE) s->next_p_frame_damaged=1;
2641
2642 for(i=mb_x + mb_y*s->mb_width; i>=0; i--){
2643 if(s->mbintra_table[i]) intra_count++;
2644 else inter_count++;
2645 }
2646
2647 if(s->decoding_error==DECODING_AC_LOST){
2648 intra_conceal*=2;
2649 inter_conceal*=2;
2650 }else if(s->decoding_error==DECODING_ACDC_LOST){
2651 intra_conceal*=2;
2652 inter_conceal*=2;
2653 }
2654
2655 if(unknown_pos && (intra_count<inter_count)){
2656 intra_conceal= inter_conceal= s->mb_num;
2657 // printf("%d %d\n",intra_count, inter_count);
2658 }
2659
2660 fprintf(stderr, "concealing errors\n");
2661
2662 /* for all MBs from the current one back until the last resync marker */
2663 for(; mb_y>=0 && mb_y>=s->resync_mb_y; mb_y--){
2664 for(; mb_x>=0; mb_x--){
2665 uint8_t *dest_y = s->current_picture[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
2666 uint8_t *dest_cb = s->current_picture[1] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
2667 uint8_t *dest_cr = s->current_picture[2] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
2668 int mb_x_backup= s->mb_x; //FIXME pass xy to mpeg_motion
2669 int mb_y_backup= s->mb_y;
2670 s->mb_x=mb_x;
2671 s->mb_y=mb_y;
2672 if(s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<intra_conceal){
2673 if(s->decoding_error==DECODING_AC_LOST){
2674 remove_ac(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
2675 // printf("remove ac to %d %d\n", mb_x, mb_y);
2676 }else{
2677 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
2678 s->last_picture, 0, 0, put_pixels_tab,
2679 0/*mx*/, 0/*my*/, 16);
2680 }
2681 }
2682 else if(!s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<inter_conceal){
2683 int mx=0;
2684 int my=0;
2685
2686 if(s->decoding_error!=DECODING_DESYNC){
2687 int xy= mb_x*2+1 + (mb_y*2+1)*(s->mb_width*2+2);
2688 mx= s->motion_val[ xy ][0];
2689 my= s->motion_val[ xy ][1];
2690 }
2691
2692 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
2693 s->last_picture, 0, 0, put_pixels_tab,
2694 mx, my, 16);
2695 }
2696 s->mb_x= mb_x_backup;
2697 s->mb_y= mb_y_backup;
2698
2699 if(mb_x== s->resync_mb_x && mb_y== s->resync_mb_y) return;
2700 if(!s->mbskip_table[mb_x + mb_y*s->mb_width]) mb_dist++;
2701 }
2702 mb_x=s->mb_width-1;
2703 }
2704 }
2705
2706 AVCodec mpeg1video_encoder = {
2707 "mpeg1video",
2708 CODEC_TYPE_VIDEO,
2709 CODEC_ID_MPEG1VIDEO,
2710 sizeof(MpegEncContext),
2711 MPV_encode_init,
2712 MPV_encode_picture,
2713 MPV_encode_end,
2714 };
2715
2716 AVCodec h263_encoder = {
2717 "h263",
2718 CODEC_TYPE_VIDEO,
2719 CODEC_ID_H263,
2720 sizeof(MpegEncContext),
2721 MPV_encode_init,
2722 MPV_encode_picture,
2723 MPV_encode_end,
2724 };
2725
2726 AVCodec h263p_encoder = {
2727 "h263p",
2728 CODEC_TYPE_VIDEO,
2729 CODEC_ID_H263P,
2730 sizeof(MpegEncContext),
2731 MPV_encode_init,
2732 MPV_encode_picture,
2733 MPV_encode_end,
2734 };
2735
2736 AVCodec rv10_encoder = {
2737 "rv10",
2738 CODEC_TYPE_VIDEO,
2739 CODEC_ID_RV10,
2740 sizeof(MpegEncContext),
2741 MPV_encode_init,
2742 MPV_encode_picture,
2743 MPV_encode_end,
2744 };
2745
2746 AVCodec mjpeg_encoder = {
2747 "mjpeg",
2748 CODEC_TYPE_VIDEO,
2749 CODEC_ID_MJPEG,
2750 sizeof(MpegEncContext),
2751 MPV_encode_init,
2752 MPV_encode_picture,
2753 MPV_encode_end,
2754 };
2755
2756 AVCodec mpeg4_encoder = {
2757 "mpeg4",
2758 CODEC_TYPE_VIDEO,
2759 CODEC_ID_MPEG4,
2760 sizeof(MpegEncContext),
2761 MPV_encode_init,
2762 MPV_encode_picture,
2763 MPV_encode_end,
2764 };
2765
2766 AVCodec msmpeg4v1_encoder = {
2767 "msmpeg4v1",
2768 CODEC_TYPE_VIDEO,
2769 CODEC_ID_MSMPEG4V1,
2770 sizeof(MpegEncContext),
2771 MPV_encode_init,
2772 MPV_encode_picture,
2773 MPV_encode_end,
2774 };
2775
2776 AVCodec msmpeg4v2_encoder = {
2777 "msmpeg4v2",
2778 CODEC_TYPE_VIDEO,
2779 CODEC_ID_MSMPEG4V2,
2780 sizeof(MpegEncContext),
2781 MPV_encode_init,
2782 MPV_encode_picture,
2783 MPV_encode_end,
2784 };
2785
2786 AVCodec msmpeg4v3_encoder = {
2787 "msmpeg4",
2788 CODEC_TYPE_VIDEO,
2789 CODEC_ID_MSMPEG4V3,
2790 sizeof(MpegEncContext),
2791 MPV_encode_init,
2792 MPV_encode_picture,
2793 MPV_encode_end,
2794 };
2795
2796 AVCodec wmv1_encoder = {
2797 "wmv1",
2798 CODEC_TYPE_VIDEO,
2799 CODEC_ID_WMV1,
2800 sizeof(MpegEncContext),
2801 MPV_encode_init,
2802 MPV_encode_picture,
2803 MPV_encode_end,
2804 };
2805
2806 AVCodec wmv2_encoder = {
2807 "wmv2",
2808 CODEC_TYPE_VIDEO,
2809 CODEC_ID_WMV2,
2810 sizeof(MpegEncContext),
2811 MPV_encode_init,
2812 MPV_encode_picture,
2813 MPV_encode_end,
2814 };