* cleanup
[libav.git] / libavcodec / mpegvideo.c
CommitLineData
de6d9b64
FB
1/*
2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Gerard Lantau.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program 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
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
cf8039b2 18 *
9dbf1ddd 19 * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
de6d9b64
FB
20 */
21#include <stdlib.h>
22#include <stdio.h>
23#include <math.h>
24#include <string.h>
25#include "avcodec.h"
26#include "dsputil.h"
27#include "mpegvideo.h"
28
54329dd5
NK
29#ifdef USE_FASTMEMCPY
30#include "fastmemcpy.h"
31#endif
32
21af69f7 33static void encode_picture(MpegEncContext *s, int picture_number);
21af69f7
FB
34static void dct_unquantize_mpeg1_c(MpegEncContext *s,
35 DCTELEM *block, int n, int qscale);
9dbf1ddd
MN
36static void dct_unquantize_mpeg2_c(MpegEncContext *s,
37 DCTELEM *block, int n, int qscale);
21af69f7
FB
38static void dct_unquantize_h263_c(MpegEncContext *s,
39 DCTELEM *block, int n, int qscale);
3d9fccbf 40static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w);
2f349de2 41static int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale);
3d9fccbf 42
2f349de2 43int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale)= dct_quantize_c;
3d9fccbf
MN
44void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w)= draw_edges_c;
45
de6d9b64
FB
46#define EDGE_WIDTH 16
47
48/* enable all paranoid tests for rounding, overflows, etc... */
49//#define PARANOID
50
51//#define DEBUG
52
101bea5f 53
de6d9b64
FB
54/* for jpeg fast DCT */
55#define CONST_BITS 14
56
57static const unsigned short aanscales[64] = {
58 /* precomputed values scaled up by 14 bits */
59 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
60 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
61 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
62 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
63 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
64 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
65 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446,
66 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247
67};
68
69static UINT8 h263_chroma_roundtab[16] = {
70 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
71};
72
9c15096e 73static UINT16 default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
45870f57
MN
74static UINT8 default_fcode_tab[MAX_MV*2+1];
75
badaf88e
MN
76extern UINT8 zigzag_end[64];
77
101bea5f
J
78/* default motion estimation */
79int motion_estimation_method = ME_EPZS;
80
2f349de2 81static void convert_matrix(int *qmat, UINT16 *qmat16, const UINT16 *quant_matrix, int qscale)
de6d9b64
FB
82{
83 int i;
84
85 if (av_fdct == jpeg_fdct_ifast) {
86 for(i=0;i<64;i++) {
87 /* 16 <= qscale * quant_matrix[i] <= 7905 */
2f349de2
MN
88 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
89 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
90 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
de6d9b64 91
2f349de2
MN
92 qmat[block_permute_op(i)] = (int)((UINT64_C(1) << (QMAT_SHIFT + 11)) /
93 (aanscales[i] * qscale * quant_matrix[block_permute_op(i)]));
de6d9b64
FB
94 }
95 } else {
96 for(i=0;i<64;i++) {
97 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
2f349de2
MN
98 So 16 <= qscale * quant_matrix[i] <= 7905
99 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
100 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
de6d9b64 101 */
2f349de2
MN
102 qmat[i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
103 qmat16[i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[block_permute_op(i)]);
de6d9b64
FB
104 }
105 }
106}
107
108/* init common structure for both encoder and decoder */
109int MPV_common_init(MpegEncContext *s)
110{
111 int c_size, i;
112 UINT8 *pict;
113
3bf43d42 114 s->dct_unquantize_h263 = dct_unquantize_h263_c;
9dbf1ddd
MN
115 s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_c;
116 s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_c;
21af69f7
FB
117
118#ifdef HAVE_MMX
119 MPV_common_init_mmx(s);
a9b3f630 120#endif
3bf43d42
MN
121 //setup default unquantizers (mpeg4 might change it later)
122 if(s->out_format == FMT_H263)
123 s->dct_unquantize = s->dct_unquantize_h263;
124 else
9dbf1ddd 125 s->dct_unquantize = s->dct_unquantize_mpeg1;
3bf43d42 126
de6d9b64
FB
127 s->mb_width = (s->width + 15) / 16;
128 s->mb_height = (s->height + 15) / 16;
e03c341e 129 s->mb_num = s->mb_width * s->mb_height;
de6d9b64
FB
130 s->linesize = s->mb_width * 16 + 2 * EDGE_WIDTH;
131
132 for(i=0;i<3;i++) {
133 int w, h, shift, pict_start;
134
135 w = s->linesize;
136 h = s->mb_height * 16 + 2 * EDGE_WIDTH;
137 shift = (i == 0) ? 0 : 1;
138 c_size = (w >> shift) * (h >> shift);
139 pict_start = (w >> shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
140
141 pict = av_mallocz(c_size);
142 if (pict == NULL)
143 goto fail;
144 s->last_picture_base[i] = pict;
145 s->last_picture[i] = pict + pict_start;
146
147 pict = av_mallocz(c_size);
148 if (pict == NULL)
149 goto fail;
150 s->next_picture_base[i] = pict;
151 s->next_picture[i] = pict + pict_start;
9dbcbd92 152
de6d9b64
FB
153 if (s->has_b_frames) {
154 pict = av_mallocz(c_size);
155 if (pict == NULL)
156 goto fail;
157 s->aux_picture_base[i] = pict;
158 s->aux_picture[i] = pict + pict_start;
159 }
160 }
37fbfd0a
J
161
162 if (s->encoding) {
9dbcbd92
MN
163 int j;
164 int mv_table_size= (s->mb_width+2)*(s->mb_height+2);
165
37fbfd0a 166 /* Allocate MB type table */
b4dbd87c 167 s->mb_type = av_mallocz(s->mb_num * sizeof(char));
37fbfd0a
J
168 if (s->mb_type == NULL) {
169 perror("malloc");
170 goto fail;
171 }
b4dbd87c
J
172
173 s->mb_var = av_mallocz(s->mb_num * sizeof(INT16));
174 if (s->mb_var == NULL) {
175 perror("malloc");
176 goto fail;
177 }
9dbcbd92
MN
178
179 /* Allocate MV tables */
180 s->p_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
181 if (s->p_mv_table == NULL) {
182 perror("malloc");
183 goto fail;
184 }
185 s->last_p_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
186 if (s->last_p_mv_table == NULL) {
187 perror("malloc");
188 goto fail;
189 }
190 s->b_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
191 if (s->b_forw_mv_table == NULL) {
192 perror("malloc");
193 goto fail;
194 }
195 s->b_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
196 if (s->b_back_mv_table == NULL) {
197 perror("malloc");
198 goto fail;
199 }
200 s->b_bidir_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
201 if (s->b_bidir_forw_mv_table == NULL) {
202 perror("malloc");
203 goto fail;
204 }
205 s->b_bidir_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
206 if (s->b_bidir_back_mv_table == NULL) {
207 perror("malloc");
208 goto fail;
209 }
210 s->b_direct_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
211 if (s->b_direct_forw_mv_table == NULL) {
37fbfd0a
J
212 perror("malloc");
213 goto fail;
214 }
9dbcbd92
MN
215 s->b_direct_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
216 if (s->b_direct_back_mv_table == NULL) {
217 perror("malloc");
218 goto fail;
219 }
220 s->b_direct_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
221 if (s->b_direct_mv_table == NULL) {
222 perror("malloc");
223 goto fail;
224 }
225
91029be7
MN
226 s->me_scratchpad = av_mallocz( s->linesize*16*3*sizeof(uint8_t));
227 if (s->me_scratchpad == NULL) {
228 perror("malloc");
229 goto fail;
230 }
231
9dbcbd92
MN
232 if(s->max_b_frames){
233 for(j=0; j<REORDER_BUFFER_SIZE; j++){
234 int i;
235 for(i=0;i<3;i++) {
236 int w, h, shift;
237
238 w = s->linesize;
239 h = s->mb_height * 16;
240 shift = (i == 0) ? 0 : 1;
241 c_size = (w >> shift) * (h >> shift);
242
243 pict = av_mallocz(c_size);
244 if (pict == NULL)
245 goto fail;
246 s->picture_buffer[j][i] = pict;
247 }
248 }
249 }
37fbfd0a
J
250 }
251
174489bd 252 if (s->out_format == FMT_H263 || s->encoding) {
de6d9b64
FB
253 int size;
254 /* MV prediction */
255 size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
256 s->motion_val = malloc(size * 2 * sizeof(INT16));
257 if (s->motion_val == NULL)
258 goto fail;
259 memset(s->motion_val, 0, size * 2 * sizeof(INT16));
260 }
261
d140623f 262 if (s->h263_pred || s->h263_plus) {
de6d9b64
FB
263 int y_size, c_size, i, size;
264
265 /* dc values */
266
267 y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
268 c_size = (s->mb_width + 2) * (s->mb_height + 2);
269 size = y_size + 2 * c_size;
270 s->dc_val[0] = malloc(size * sizeof(INT16));
271 if (s->dc_val[0] == NULL)
272 goto fail;
273 s->dc_val[1] = s->dc_val[0] + y_size;
274 s->dc_val[2] = s->dc_val[1] + c_size;
275 for(i=0;i<size;i++)
276 s->dc_val[0][i] = 1024;
277
278 /* ac values */
279 s->ac_val[0] = av_mallocz(size * sizeof(INT16) * 16);
280 if (s->ac_val[0] == NULL)
281 goto fail;
282 s->ac_val[1] = s->ac_val[0] + y_size;
283 s->ac_val[2] = s->ac_val[1] + c_size;
284
285 /* cbp values */
286 s->coded_block = av_mallocz(y_size);
287 if (!s->coded_block)
288 goto fail;
bff6ecaa
MN
289
290 /* which mb is a intra block */
e03c341e 291 s->mbintra_table = av_mallocz(s->mb_num);
bff6ecaa
MN
292 if (!s->mbintra_table)
293 goto fail;
e03c341e 294 memset(s->mbintra_table, 1, s->mb_num);
eec1c6b9
MN
295
296 /* divx501 bitstream reorder buffer */
297 s->bitstream_buffer= av_mallocz(BITSTREAM_BUFFER_SIZE);
298 if (!s->bitstream_buffer)
299 goto fail;
5b3438c6 300 }
de6d9b64
FB
301 /* default structure is frame */
302 s->picture_structure = PICT_FRAME;
303
3bb4e23a 304 /* init macroblock skip table */
9dbcbd92
MN
305 s->mbskip_table = av_mallocz(s->mb_num);
306 if (!s->mbskip_table)
307 goto fail;
ba6802de 308
91029be7 309 s->block= s->blocks[0];
3bb4e23a 310
de6d9b64
FB
311 s->context_initialized = 1;
312 return 0;
313 fail:
8257bf05 314 MPV_common_end(s);
de6d9b64
FB
315 return -1;
316}
317
9dbcbd92
MN
318#define CHECK_FREE(p)\
319{\
320 if(p) free(p);\
321 p= NULL;\
322}
323
de6d9b64
FB
324/* init common structure for both encoder and decoder */
325void MPV_common_end(MpegEncContext *s)
326{
327 int i;
328
9dbcbd92
MN
329 CHECK_FREE(s->mb_type);
330 CHECK_FREE(s->mb_var);
331 CHECK_FREE(s->p_mv_table);
332 CHECK_FREE(s->last_p_mv_table);
333 CHECK_FREE(s->b_forw_mv_table);
334 CHECK_FREE(s->b_back_mv_table);
335 CHECK_FREE(s->b_bidir_forw_mv_table);
336 CHECK_FREE(s->b_bidir_back_mv_table);
337 CHECK_FREE(s->b_direct_forw_mv_table);
338 CHECK_FREE(s->b_direct_back_mv_table);
339 CHECK_FREE(s->b_direct_mv_table);
340 CHECK_FREE(s->motion_val);
341 CHECK_FREE(s->dc_val[0]);
342 CHECK_FREE(s->ac_val[0]);
343 CHECK_FREE(s->coded_block);
344 CHECK_FREE(s->mbintra_table);
91029be7 345 CHECK_FREE(s->me_scratchpad);
9dbcbd92
MN
346
347 CHECK_FREE(s->mbskip_table);
eec1c6b9 348 CHECK_FREE(s->bitstream_buffer);
de6d9b64 349 for(i=0;i<3;i++) {
9dbcbd92
MN
350 int j;
351 CHECK_FREE(s->last_picture_base[i]);
352 CHECK_FREE(s->next_picture_base[i]);
353 CHECK_FREE(s->aux_picture_base[i]);
354 for(j=0; j<REORDER_BUFFER_SIZE; j++){
355 CHECK_FREE(s->picture_buffer[j][i]);
356 }
de6d9b64
FB
357 }
358 s->context_initialized = 0;
359}
360
361/* init video encoder */
362int MPV_encode_init(AVCodecContext *avctx)
363{
364 MpegEncContext *s = avctx->priv_data;
519c2b6d 365 int i;
de6d9b64 366
bc657ac3
ZK
367 avctx->pix_fmt = PIX_FMT_YUV420P;
368
de6d9b64 369 s->bit_rate = avctx->bit_rate;
9cdd6a24 370 s->bit_rate_tolerance = avctx->bit_rate_tolerance;
de6d9b64
FB
371 s->frame_rate = avctx->frame_rate;
372 s->width = avctx->width;
373 s->height = avctx->height;
374 s->gop_size = avctx->gop_size;
644d98a4
J
375 s->rtp_mode = avctx->rtp_mode;
376 s->rtp_payload_size = avctx->rtp_payload_size;
81401c1f
J
377 if (avctx->rtp_callback)
378 s->rtp_callback = avctx->rtp_callback;
9cdd6a24
MN
379 s->qmin= avctx->qmin;
380 s->qmax= avctx->qmax;
381 s->max_qdiff= avctx->max_qdiff;
382 s->qcompress= avctx->qcompress;
383 s->qblur= avctx->qblur;
8b4c7dbc 384 s->b_quant_factor= avctx->b_quant_factor;
477c35a9 385 s->avctx = avctx;
11ce8834 386 s->aspect_ratio_info= avctx->aspect_ratio_info;
ba6802de 387 s->flags= avctx->flags;
9dbcbd92 388 s->max_b_frames= avctx->max_b_frames;
8b4c7dbc
MN
389 s->rc_strategy= avctx->rc_strategy;
390 s->b_frame_strategy= avctx->b_frame_strategy;
644d98a4 391
de6d9b64
FB
392 if (s->gop_size <= 1) {
393 s->intra_only = 1;
394 s->gop_size = 12;
395 } else {
396 s->intra_only = 0;
397 }
e4986da9
J
398
399 /* ME algorithm */
101bea5f
J
400 if (avctx->me_method == 0)
401 /* For compatibility */
402 s->me_method = motion_estimation_method;
403 else
404 s->me_method = avctx->me_method;
405
e4986da9 406 /* Fixed QSCALE */
de6d9b64 407 s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);
37fbfd0a 408
de6d9b64
FB
409 switch(avctx->codec->id) {
410 case CODEC_ID_MPEG1VIDEO:
411 s->out_format = FMT_MPEG1;
1ff662cc 412 avctx->delay=0; //FIXME not sure, should check the spec
de6d9b64
FB
413 break;
414 case CODEC_ID_MJPEG:
415 s->out_format = FMT_MJPEG;
416 s->intra_only = 1; /* force intra only for jpeg */
37fbfd0a
J
417 s->mjpeg_write_tables = 1; /* write all tables */
418 s->mjpeg_vsample[0] = 2; /* set up default sampling factors */
419 s->mjpeg_vsample[1] = 1; /* the only currently supported values */
420 s->mjpeg_vsample[2] = 1;
421 s->mjpeg_hsample[0] = 2;
422 s->mjpeg_hsample[1] = 1;
423 s->mjpeg_hsample[2] = 1;
de6d9b64
FB
424 if (mjpeg_init(s) < 0)
425 return -1;
1ff662cc 426 avctx->delay=0;
de6d9b64
FB
427 break;
428 case CODEC_ID_H263:
37fbfd0a
J
429 if (h263_get_picture_format(s->width, s->height) == 7) {
430 printf("Input picture size isn't suitable for h263 codec! try h263+\n");
de6d9b64 431 return -1;
37fbfd0a 432 }
de6d9b64 433 s->out_format = FMT_H263;
1ff662cc 434 avctx->delay=0;
de6d9b64
FB
435 break;
436 case CODEC_ID_H263P:
437 s->out_format = FMT_H263;
644d98a4
J
438 s->rtp_mode = 1;
439 s->rtp_payload_size = 1200;
de6d9b64 440 s->h263_plus = 1;
6dbd39fe 441 s->unrestricted_mv = 1;
544286b3
J
442
443 /* These are just to be sure */
444 s->umvplus = 0;
445 s->umvplus_dec = 0;
1ff662cc 446 avctx->delay=0;
de6d9b64
FB
447 break;
448 case CODEC_ID_RV10:
449 s->out_format = FMT_H263;
450 s->h263_rv10 = 1;
1ff662cc 451 avctx->delay=0;
de6d9b64 452 break;
58f26ba9 453 case CODEC_ID_MPEG4:
de6d9b64
FB
454 s->out_format = FMT_H263;
455 s->h263_pred = 1;
456 s->unrestricted_mv = 1;
9dbcbd92 457 s->has_b_frames= s->max_b_frames ? 1 : 0;
1ff662cc
MN
458 s->low_delay=0;
459 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
de6d9b64 460 break;
84afee34 461 case CODEC_ID_MSMPEG4V1:
de6d9b64
FB
462 s->out_format = FMT_H263;
463 s->h263_msmpeg4 = 1;
464 s->h263_pred = 1;
465 s->unrestricted_mv = 1;
84afee34 466 s->msmpeg4_version= 1;
1ff662cc 467 avctx->delay=0;
84afee34
MN
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;
1ff662cc 475 avctx->delay=0;
84afee34
MN
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;
1ff662cc 483 avctx->delay=0;
de6d9b64
FB
484 break;
485 default:
486 return -1;
487 }
cf8039b2
MN
488
489 if((s->flags&CODEC_FLAG_4MV) && !(s->flags&CODEC_FLAG_HQ)){
490 printf("4MV is currently only supported in HQ mode\n");
491 return -1;
492 }
de6d9b64 493
45870f57
MN
494 { /* set up some save defaults, some codecs might override them later */
495 static int done=0;
496 if(!done){
497 int i;
498 done=1;
9c15096e 499 memset(default_mv_penalty, 0, sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1));
45870f57
MN
500 memset(default_fcode_tab , 0, sizeof(UINT8)*(2*MAX_MV+1));
501
502 for(i=-16; i<16; i++){
503 default_fcode_tab[i + MAX_MV]= 1;
504 }
505 }
506 }
507 s->mv_penalty= default_mv_penalty;
508 s->fcode_tab= default_fcode_tab;
509
de6d9b64 510 if (s->out_format == FMT_H263)
45870f57 511 h263_encode_init(s);
11ce8834
MN
512 else if (s->out_format == FMT_MPEG1)
513 mpeg1_encode_init(s);
de6d9b64 514
9d2a0355 515 /* dont use mv_penalty table for crap MV as it would be confused */
9dbcbd92 516 if (s->me_method < ME_EPZS) s->mv_penalty = default_mv_penalty;
9d2a0355 517
3bb4e23a
FB
518 s->encoding = 1;
519
de6d9b64
FB
520 /* init */
521 if (MPV_common_init(s) < 0)
522 return -1;
523
519c2b6d
FB
524 /* init default q matrix */
525 for(i=0;i<64;i++) {
526 s->intra_matrix[i] = default_intra_matrix[i];
527 s->non_intra_matrix[i] = default_non_intra_matrix[i];
528 }
529
8b4c7dbc
MN
530 if(ff_rate_control_init(s) < 0)
531 return -1;
de6d9b64
FB
532
533 s->picture_number = 0;
45870f57 534 s->picture_in_gop_number = 0;
de6d9b64
FB
535 s->fake_picture_number = 0;
536 /* motion detector init */
537 s->f_code = 1;
9dbcbd92 538 s->b_code = 1;
de6d9b64
FB
539
540 return 0;
541}
542
543int MPV_encode_end(AVCodecContext *avctx)
544{
545 MpegEncContext *s = avctx->priv_data;
546
547#ifdef STATS
548 print_stats();
549#endif
8b4c7dbc
MN
550
551 ff_rate_control_uninit(s);
552
de6d9b64
FB
553 MPV_common_end(s);
554 if (s->out_format == FMT_MJPEG)
555 mjpeg_close(s);
37fbfd0a 556
de6d9b64
FB
557 return 0;
558}
559
560/* draw the edges of width 'w' of an image of size width, height */
3d9fccbf 561static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
de6d9b64
FB
562{
563 UINT8 *ptr, *last_line;
564 int i;
565
566 last_line = buf + (height - 1) * wrap;
567 for(i=0;i<w;i++) {
568 /* top and bottom */
569 memcpy(buf - (i + 1) * wrap, buf, width);
570 memcpy(last_line + (i + 1) * wrap, last_line, width);
571 }
572 /* left and right */
573 ptr = buf;
574 for(i=0;i<height;i++) {
575 memset(ptr - w, ptr[0], w);
576 memset(ptr + width, ptr[width-1], w);
577 ptr += wrap;
578 }
579 /* corners */
580 for(i=0;i<w;i++) {
581 memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
582 memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
583 memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
584 memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
585 }
586}
587
de6d9b64
FB
588/* generic function for encode/decode called before a frame is coded/decoded */
589void MPV_frame_start(MpegEncContext *s)
590{
591 int i;
592 UINT8 *tmp;
593
425dddb7 594 s->mb_skiped = 0;
de6d9b64
FB
595 if (s->pict_type == B_TYPE) {
596 for(i=0;i<3;i++) {
597 s->current_picture[i] = s->aux_picture[i];
598 }
599 } else {
600 for(i=0;i<3;i++) {
601 /* swap next and last */
602 tmp = s->last_picture[i];
603 s->last_picture[i] = s->next_picture[i];
604 s->next_picture[i] = tmp;
605 s->current_picture[i] = tmp;
606 }
607 }
608}
21af69f7 609
de6d9b64
FB
610/* generic function for encode/decode called after a frame has been coded/decoded */
611void MPV_frame_end(MpegEncContext *s)
612{
613 /* draw edge for correct motion prediction if outside */
2f349de2 614 if (s->pict_type != B_TYPE && !s->intra_only) {
1699d376 615 if(s->avctx==NULL || s->avctx->codec->id!=CODEC_ID_MPEG4 || s->divx_version==500){
393fe8dd
A
616 draw_edges(s->current_picture[0], s->linesize, s->mb_width*16, s->mb_height*16, EDGE_WIDTH);
617 draw_edges(s->current_picture[1], s->linesize/2, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
618 draw_edges(s->current_picture[2], s->linesize/2, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
ef093645 619 }else{
1699d376 620 /* mpeg4? / opendivx / xvid */
de6d9b64
FB
621 draw_edges(s->current_picture[0], s->linesize, s->width, s->height, EDGE_WIDTH);
622 draw_edges(s->current_picture[1], s->linesize/2, s->width/2, s->height/2, EDGE_WIDTH/2);
623 draw_edges(s->current_picture[2], s->linesize/2, s->width/2, s->height/2, EDGE_WIDTH/2);
ef093645 624 }
de6d9b64 625 }
5975626d 626 emms_c();
8b4c7dbc
MN
627
628 if(s->pict_type!=B_TYPE){
629 s->last_non_b_pict_type= s->pict_type;
630 s->last_non_b_qscale= s->qscale;
631 s->last_non_b_mc_mb_var= s->mc_mb_var;
1c2a8c7f
MN
632 s->num_available_buffers++;
633 if(s->num_available_buffers>2) s->num_available_buffers= 2;
8b4c7dbc 634 }
de6d9b64
FB
635}
636
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MN
637/* reorder input for encoding */
638void reorder_input(MpegEncContext *s, AVPicture *pict)
639{
640 int i, j, index;
641
642 if(s->max_b_frames > FF_MAX_B_FRAMES) s->max_b_frames= FF_MAX_B_FRAMES;
643
644// delay= s->max_b_frames+1; (or 0 if no b frames cuz decoder diff)
645
646 for(j=0; j<REORDER_BUFFER_SIZE-1; j++){
647 s->coded_order[j]= s->coded_order[j+1];
648 }
649 s->coded_order[j].picture[0]= s->coded_order[j].picture[1]= s->coded_order[j].picture[2]= NULL; //catch uninitalized buffers
d697b89b 650 s->coded_order[j].pict_type=0;
9dbcbd92
MN
651
652 switch(s->input_pict_type){
653 default:
654 case I_TYPE:
655 case S_TYPE:
656 case P_TYPE:
657 index= s->max_b_frames - s->b_frames_since_non_b;
658 s->b_frames_since_non_b=0;
659 break;
660 case B_TYPE:
661 index= s->max_b_frames + 1;
662 s->b_frames_since_non_b++;
663 break;
664 }
665//printf("index:%d type:%d strides: %d %d\n", index, s->input_pict_type, pict->linesize[0], s->linesize);
666 if( (index==0 || (s->flags&CODEC_FLAG_INPUT_PRESERVED))
667 && pict->linesize[0] == s->linesize
668 && pict->linesize[1] == s->linesize>>1
669 && pict->linesize[2] == s->linesize>>1){
670//printf("ptr\n");
671 for(i=0; i<3; i++){
672 s->coded_order[index].picture[i]= pict->data[i];
673 }
674 }else{
675//printf("copy\n");
676 for(i=0; i<3; i++){
677 uint8_t *src = pict->data[i];
678 uint8_t *dest;
679 int src_wrap = pict->linesize[i];
680 int dest_wrap = s->linesize;
681 int w = s->width;
682 int h = s->height;
683
684 if(index==0) dest= s->last_picture[i]+16; //is current_picture indeed but the switch hapens after reordering
685 else dest= s->picture_buffer[s->picture_buffer_index][i];
686
687 if (i >= 1) {
688 dest_wrap >>= 1;
689 w >>= 1;
690 h >>= 1;
691 }
692
693 s->coded_order[index].picture[i]= dest;
694 for(j=0;j<h;j++) {
695 memcpy(dest, src, w);
696 dest += dest_wrap;
697 src += src_wrap;
698 }
699 }
700 if(index!=0){
701 s->picture_buffer_index++;
702 if(s->picture_buffer_index >= REORDER_BUFFER_SIZE-1) s->picture_buffer_index=0;
703 }
704 }
705 s->coded_order[index].pict_type = s->input_pict_type;
706 s->coded_order[index].qscale = s->input_qscale;
707 s->coded_order[index].force_type= s->force_input_type;
708 s->coded_order[index].picture_in_gop_number= s->input_picture_in_gop_number;
709 s->coded_order[index].picture_number= s->input_picture_number;
710
711 for(i=0; i<3; i++){
712 s->new_picture[i]= s->coded_order[0].picture[i];
713 }
714}
715
de6d9b64
FB
716int MPV_encode_picture(AVCodecContext *avctx,
717 unsigned char *buf, int buf_size, void *data)
718{
719 MpegEncContext *s = avctx->priv_data;
720 AVPicture *pict = data;
de6d9b64 721
9dbcbd92 722 s->input_qscale = avctx->quality;
de6d9b64
FB
723
724 init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
725
8b4c7dbc
MN
726 if(avctx->flags&CODEC_FLAG_TYPE){
727 s->input_pict_type=
728 s->force_input_type= avctx->key_frame ? I_TYPE : P_TYPE;
729 }else if(s->flags&CODEC_FLAG_PASS2){
730 s->input_pict_type=
731 s->force_input_type= s->rc_context.entry[s->input_picture_number].new_pict_type;
732 }else{
733 s->force_input_type=0;
734 if (!s->intra_only) {
735 /* first picture of GOP is intra */
736 if (s->input_picture_in_gop_number % s->gop_size==0){
737 s->input_pict_type = I_TYPE;
738 }else if(s->max_b_frames==0){
9dbcbd92 739 s->input_pict_type = P_TYPE;
8b4c7dbc
MN
740 }else{
741 if(s->b_frames_since_non_b < s->max_b_frames) //FIXME more IQ
742 s->input_pict_type = B_TYPE;
743 else
744 s->input_pict_type = P_TYPE;
745 }
746 } else {
747 s->input_pict_type = I_TYPE;
9dbcbd92 748 }
de6d9b64 749 }
de6d9b64 750
8b4c7dbc
MN
751 if(s->input_pict_type==I_TYPE)
752 s->input_picture_in_gop_number=0;
753
9dbcbd92
MN
754 reorder_input(s, pict);
755
756 /* output? */
757 if(s->coded_order[0].picture[0]){
758
759 s->pict_type= s->coded_order[0].pict_type;
760 if (s->fixed_qscale) /* the ratecontrol needs the last qscale so we dont touch it for CBR */
761 s->qscale= s->coded_order[0].qscale;
762 s->force_type= s->coded_order[0].force_type;
763 s->picture_in_gop_number= s->coded_order[0].picture_in_gop_number;
764 s->picture_number= s->coded_order[0].picture_number;
765
766 MPV_frame_start(s);
767
768 encode_picture(s, s->picture_number);
769 avctx->key_frame = (s->pict_type == I_TYPE);
770 avctx->header_bits = s->header_bits;
771 avctx->mv_bits = s->mv_bits;
772 avctx->misc_bits = s->misc_bits;
773 avctx->i_tex_bits = s->i_tex_bits;
774 avctx->p_tex_bits = s->p_tex_bits;
775 avctx->i_count = s->i_count;
776 avctx->p_count = s->p_count;
777 avctx->skip_count = s->skip_count;
778
779 MPV_frame_end(s);
780
781 if (s->out_format == FMT_MJPEG)
782 mjpeg_picture_trailer(s);
783
784 avctx->quality = s->qscale;
8b4c7dbc
MN
785
786 if(s->flags&CODEC_FLAG_PASS1)
787 ff_write_pass1_stats(s);
de6d9b64
FB
788 }
789
9dbcbd92
MN
790 s->input_picture_number++;
791 s->input_picture_in_gop_number++;
de6d9b64
FB
792
793 flush_put_bits(&s->pb);
9cdd6a24 794 s->frame_bits = (pbBufPtr(&s->pb) - s->pb.buf) * 8;
8b4c7dbc
MN
795 if(s->pict_type==B_TYPE) s->pb_frame_bits+= s->frame_bits;
796 else s->pb_frame_bits= s->frame_bits;
797
9cdd6a24 798 s->total_bits += s->frame_bits;
098eefe1
MN
799 avctx->frame_bits = s->frame_bits;
800//printf("fcode: %d, type: %d, head: %d, mv: %d, misc: %d, frame: %d, itex: %d, ptex: %d\n",
801//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);
17592475 802
43f1708f
J
803 if (avctx->get_psnr) {
804 /* At this point pict->data should have the original frame */
805 /* an s->current_picture should have the coded/decoded frame */
806 get_psnr(pict->data, s->current_picture,
807 pict->linesize, s->linesize, avctx);
9dbcbd92 808// printf("%f\n", avctx->psnr_y);
43f1708f 809 }
17592475 810 return pbBufPtr(&s->pb) - s->pb.buf;
de6d9b64
FB
811}
812
44eb4951
MN
813static inline void gmc1_motion(MpegEncContext *s,
814 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
815 int dest_offset,
816 UINT8 **ref_picture, int src_offset,
817 int h)
818{
819 UINT8 *ptr;
9dbcbd92 820 int offset, src_x, src_y, linesize;
44eb4951
MN
821 int motion_x, motion_y;
822
d6231b9e 823 if(s->real_sprite_warping_points>1) printf("more than 1 warp point isnt supported\n");
44eb4951
MN
824 motion_x= s->sprite_offset[0][0];
825 motion_y= s->sprite_offset[0][1];
826 src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
827 src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
828 motion_x<<=(3-s->sprite_warping_accuracy);
829 motion_y<<=(3-s->sprite_warping_accuracy);
830 src_x = clip(src_x, -16, s->width);
831 if (src_x == s->width)
832 motion_x =0;
833 src_y = clip(src_y, -16, s->height);
834 if (src_y == s->height)
835 motion_y =0;
836
837 linesize = s->linesize;
838 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
839
840 dest_y+=dest_offset;
841 gmc1(dest_y , ptr , linesize, h, motion_x&15, motion_y&15, s->no_rounding);
842 gmc1(dest_y+8, ptr+8, linesize, h, motion_x&15, motion_y&15, s->no_rounding);
843
844 motion_x= s->sprite_offset[1][0];
845 motion_y= s->sprite_offset[1][1];
846 src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
847 src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
848 motion_x<<=(3-s->sprite_warping_accuracy);
849 motion_y<<=(3-s->sprite_warping_accuracy);
850 src_x = clip(src_x, -8, s->width>>1);
851 if (src_x == s->width>>1)
852 motion_x =0;
853 src_y = clip(src_y, -8, s->height>>1);
854 if (src_y == s->height>>1)
855 motion_y =0;
856
857 offset = (src_y * linesize>>1) + src_x + (src_offset>>1);
858 ptr = ref_picture[1] + offset;
859 gmc1(dest_cb + (dest_offset>>1), ptr, linesize>>1, h>>1, motion_x&15, motion_y&15, s->no_rounding);
860 ptr = ref_picture[2] + offset;
861 gmc1(dest_cr + (dest_offset>>1), ptr, linesize>>1, h>>1, motion_x&15, motion_y&15, s->no_rounding);
862
863 return;
864}
865
de6d9b64
FB
866/* apply one mpeg motion vector to the three components */
867static inline void mpeg_motion(MpegEncContext *s,
868 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
869 int dest_offset,
870 UINT8 **ref_picture, int src_offset,
871 int field_based, op_pixels_func *pix_op,
872 int motion_x, int motion_y, int h)
873{
874 UINT8 *ptr;
875 int dxy, offset, mx, my, src_x, src_y, height, linesize;
44eb4951
MN
876if(s->quarter_sample)
877{
878 motion_x>>=1;
879 motion_y>>=1;
880}
9dbcbd92 881
de6d9b64
FB
882 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
883 src_x = s->mb_x * 16 + (motion_x >> 1);
884 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
885
886 /* WARNING: do no forget half pels */
887 height = s->height >> field_based;
888 src_x = clip(src_x, -16, s->width);
889 if (src_x == s->width)
890 dxy &= ~1;
891 src_y = clip(src_y, -16, height);
892 if (src_y == height)
893 dxy &= ~2;
894 linesize = s->linesize << field_based;
895 ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
896 dest_y += dest_offset;
897 pix_op[dxy](dest_y, ptr, linesize, h);
898 pix_op[dxy](dest_y + 8, ptr + 8, linesize, h);
899
900 if (s->out_format == FMT_H263) {
901 dxy = 0;
902 if ((motion_x & 3) != 0)
903 dxy |= 1;
904 if ((motion_y & 3) != 0)
905 dxy |= 2;
906 mx = motion_x >> 2;
907 my = motion_y >> 2;
908 } else {
909 mx = motion_x / 2;
910 my = motion_y / 2;
911 dxy = ((my & 1) << 1) | (mx & 1);
912 mx >>= 1;
913 my >>= 1;
914 }
915
916 src_x = s->mb_x * 8 + mx;
917 src_y = s->mb_y * (8 >> field_based) + my;
918 src_x = clip(src_x, -8, s->width >> 1);
919 if (src_x == (s->width >> 1))
920 dxy &= ~1;
921 src_y = clip(src_y, -8, height >> 1);
922 if (src_y == (height >> 1))
923 dxy &= ~2;
924
925 offset = (src_y * (linesize >> 1)) + src_x + (src_offset >> 1);
926 ptr = ref_picture[1] + offset;
927 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
928 ptr = ref_picture[2] + offset;
929 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
930}
931
44eb4951
MN
932static inline void qpel_motion(MpegEncContext *s,
933 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
934 int dest_offset,
935 UINT8 **ref_picture, int src_offset,
936 int field_based, op_pixels_func *pix_op,
937 qpel_mc_func *qpix_op,
938 int motion_x, int motion_y, int h)
939{
940 UINT8 *ptr;
941 int dxy, offset, mx, my, src_x, src_y, height, linesize;
942
943 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
944 src_x = s->mb_x * 16 + (motion_x >> 2);
945 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
946
947 height = s->height >> field_based;
948 src_x = clip(src_x, -16, s->width);
949 if (src_x == s->width)
950 dxy &= ~3;
951 src_y = clip(src_y, -16, height);
952 if (src_y == height)
953 dxy &= ~12;
954 linesize = s->linesize << field_based;
955 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
956 dest_y += dest_offset;
957//printf("%d %d %d\n", src_x, src_y, dxy);
958 qpix_op[dxy](dest_y , ptr , linesize, linesize, motion_x&3, motion_y&3);
959 qpix_op[dxy](dest_y + 8, ptr + 8, linesize, linesize, motion_x&3, motion_y&3);
960 qpix_op[dxy](dest_y + linesize*8 , ptr + linesize*8 , linesize, linesize, motion_x&3, motion_y&3);
961 qpix_op[dxy](dest_y + linesize*8 + 8, ptr + linesize*8 + 8, linesize, linesize, motion_x&3, motion_y&3);
962
963 mx= (motion_x>>1) | (motion_x&1);
964 my= (motion_y>>1) | (motion_y&1);
965
966 dxy = 0;
967 if ((mx & 3) != 0)
968 dxy |= 1;
969 if ((my & 3) != 0)
970 dxy |= 2;
971 mx = mx >> 2;
972 my = my >> 2;
973
974 src_x = s->mb_x * 8 + mx;
975 src_y = s->mb_y * (8 >> field_based) + my;
976 src_x = clip(src_x, -8, s->width >> 1);
977 if (src_x == (s->width >> 1))
978 dxy &= ~1;
979 src_y = clip(src_y, -8, height >> 1);
980 if (src_y == (height >> 1))
981 dxy &= ~2;
982
983 offset = (src_y * (linesize >> 1)) + src_x + (src_offset >> 1);
984 ptr = ref_picture[1] + offset;
985 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
986 ptr = ref_picture[2] + offset;
987 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
988}
989
990
de6d9b64
FB
991static inline void MPV_motion(MpegEncContext *s,
992 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
993 int dir, UINT8 **ref_picture,
44eb4951 994 op_pixels_func *pix_op, qpel_mc_func *qpix_op)
de6d9b64
FB
995{
996 int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
997 int mb_x, mb_y, i;
998 UINT8 *ptr, *dest;
999
1000 mb_x = s->mb_x;
1001 mb_y = s->mb_y;
1002
1003 switch(s->mv_type) {
1004 case MV_TYPE_16X16:
44eb4951
MN
1005 if(s->mcsel){
1006#if 0
1007 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1008 ref_picture, 0,
1009 0, pix_op,
1010 s->sprite_offset[0][0]>>3,
1011 s->sprite_offset[0][1]>>3,
1012 16);
1013#else
1014 gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
1015 ref_picture, 0,
1016 16);
1017#endif
6f91bcd1 1018 }else if(s->quarter_sample && dir==0){ //FIXME
44eb4951
MN
1019 qpel_motion(s, dest_y, dest_cb, dest_cr, 0,
1020 ref_picture, 0,
1021 0, pix_op, qpix_op,
1022 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1023 }else{
1024 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1025 ref_picture, 0,
1026 0, pix_op,
1027 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1028 }
de6d9b64
FB
1029 break;
1030 case MV_TYPE_8X8:
1031 for(i=0;i<4;i++) {
1032 motion_x = s->mv[dir][i][0];
1033 motion_y = s->mv[dir][i][1];
1034
1035 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1036 src_x = mb_x * 16 + (motion_x >> 1) + (i & 1) * 8;
cf8039b2 1037 src_y = mb_y * 16 + (motion_y >> 1) + (i >>1) * 8;
de6d9b64
FB
1038
1039 /* WARNING: do no forget half pels */
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, s->height);
1044 if (src_y == s->height)
1045 dxy &= ~2;
1046
1047 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
1048 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
1049 pix_op[dxy](dest, ptr, s->linesize, 8);
1050 }
1051 /* In case of 8X8, we construct a single chroma motion vector
1052 with a special rounding */
1053 mx = 0;
1054 my = 0;
1055 for(i=0;i<4;i++) {
1056 mx += s->mv[dir][i][0];
1057 my += s->mv[dir][i][1];
1058 }
1059 if (mx >= 0)
1060 mx = (h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1061 else {
1062 mx = -mx;
1063 mx = -(h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1064 }
1065 if (my >= 0)
1066 my = (h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1067 else {
1068 my = -my;
1069 my = -(h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1070 }
1071 dxy = ((my & 1) << 1) | (mx & 1);
1072 mx >>= 1;
1073 my >>= 1;
1074
1075 src_x = mb_x * 8 + mx;
1076 src_y = mb_y * 8 + my;
1077 src_x = clip(src_x, -8, s->width/2);
1078 if (src_x == s->width/2)
1079 dxy &= ~1;
1080 src_y = clip(src_y, -8, s->height/2);
1081 if (src_y == s->height/2)
1082 dxy &= ~2;
1083
1084 offset = (src_y * (s->linesize >> 1)) + src_x;
1085 ptr = ref_picture[1] + offset;
1086 pix_op[dxy](dest_cb, ptr, s->linesize >> 1, 8);
1087 ptr = ref_picture[2] + offset;
1088 pix_op[dxy](dest_cr, ptr, s->linesize >> 1, 8);
1089 break;
1090 case MV_TYPE_FIELD:
1091 if (s->picture_structure == PICT_FRAME) {
1092 /* top field */
1093 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1094 ref_picture, s->field_select[dir][0] ? s->linesize : 0,
1095 1, pix_op,
1096 s->mv[dir][0][0], s->mv[dir][0][1], 8);
1097 /* bottom field */
1098 mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
1099 ref_picture, s->field_select[dir][1] ? s->linesize : 0,
1100 1, pix_op,
1101 s->mv[dir][1][0], s->mv[dir][1][1], 8);
1102 } else {
1103
1104
1105 }
1106 break;
1107 }
1108}
1109
1110
1111/* put block[] to dest[] */
1112static inline void put_dct(MpegEncContext *s,
1113 DCTELEM *block, int i, UINT8 *dest, int line_size)
1114{
1115 if (!s->mpeg2)
21af69f7 1116 s->dct_unquantize(s, block, i, s->qscale);
4af7bcc1 1117 ff_idct (block);
de6d9b64
FB
1118 put_pixels_clamped(block, dest, line_size);
1119}
1120
1121/* add block[] to dest[] */
1122static inline void add_dct(MpegEncContext *s,
1123 DCTELEM *block, int i, UINT8 *dest, int line_size)
1124{
1125 if (s->block_last_index[i] >= 0) {
1126 if (!s->mpeg2)
3d9fccbf 1127 if(s->encoding || (!s->h263_msmpeg4))
badaf88e 1128 s->dct_unquantize(s, block, i, s->qscale);
9dbcbd92 1129
4af7bcc1 1130 ff_idct (block);
de6d9b64
FB
1131 add_pixels_clamped(block, dest, line_size);
1132 }
1133}
1134
1135/* generic function called after a macroblock has been parsed by the
1136 decoder or after it has been encoded by the encoder.
1137
1138 Important variables used:
1139 s->mb_intra : true if intra macroblock
1140 s->mv_dir : motion vector direction
1141 s->mv_type : motion vector type
1142 s->mv : motion vector
1143 s->interlaced_dct : true if interlaced dct used (mpeg2)
1144 */
1145void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
1146{
8257bf05 1147 int mb_x, mb_y;
de6d9b64
FB
1148 int dct_linesize, dct_offset;
1149 op_pixels_func *op_pix;
44eb4951 1150 qpel_mc_func *op_qpix;
de6d9b64
FB
1151
1152 mb_x = s->mb_x;
1153 mb_y = s->mb_y;
1154
79e7b305
A
1155#ifdef FF_POSTPROCESS
1156 quant_store[mb_y][mb_x]=s->qscale;
1157 //printf("[%02d][%02d] %d\n",mb_x,mb_y,s->qscale);
1158#endif
1159
de6d9b64
FB
1160 /* update DC predictors for P macroblocks */
1161 if (!s->mb_intra) {
9e15ad28 1162 if (s->h263_pred || s->h263_aic) {
bff6ecaa
MN
1163 if(s->mbintra_table[mb_x + mb_y*s->mb_width])
1164 {
8257bf05 1165 int wrap, xy, v;
bff6ecaa 1166 s->mbintra_table[mb_x + mb_y*s->mb_width]=0;
de6d9b64 1167 wrap = 2 * s->mb_width + 2;
8257bf05 1168 xy = 2 * mb_x + 1 + (2 * mb_y + 1) * wrap;
de6d9b64 1169 v = 1024;
bff6ecaa 1170
9e15ad28 1171 s->dc_val[0][xy] = v;
8257bf05
ZK
1172 s->dc_val[0][xy + 1] = v;
1173 s->dc_val[0][xy + wrap] = v;
1174 s->dc_val[0][xy + 1 + wrap] = v;
de6d9b64 1175 /* ac pred */
8257bf05
ZK
1176 memset(s->ac_val[0][xy], 0, 16 * sizeof(INT16));
1177 memset(s->ac_val[0][xy + 1], 0, 16 * sizeof(INT16));
1178 memset(s->ac_val[0][xy + wrap], 0, 16 * sizeof(INT16));
1179 memset(s->ac_val[0][xy + 1 + wrap], 0, 16 * sizeof(INT16));
de6d9b64 1180 if (s->h263_msmpeg4) {
8257bf05
ZK
1181 s->coded_block[xy] = 0;
1182 s->coded_block[xy + 1] = 0;
1183 s->coded_block[xy + wrap] = 0;
1184 s->coded_block[xy + 1 + wrap] = 0;
de6d9b64
FB
1185 }
1186 /* chroma */
1187 wrap = s->mb_width + 2;
8257bf05
ZK
1188 xy = mb_x + 1 + (mb_y + 1) * wrap;
1189 s->dc_val[1][xy] = v;
1190 s->dc_val[2][xy] = v;
de6d9b64 1191 /* ac pred */
8257bf05
ZK
1192 memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
1193 memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
bff6ecaa 1194 }
de6d9b64
FB
1195 } else {
1196 s->last_dc[0] = 128 << s->intra_dc_precision;
1197 s->last_dc[1] = 128 << s->intra_dc_precision;
1198 s->last_dc[2] = 128 << s->intra_dc_precision;
1199 }
1200 }
9e15ad28 1201 else if (s->h263_pred || s->h263_aic)
bff6ecaa
MN
1202 s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
1203
c5b1c10a 1204 /* update motion predictor, not for B-frames as they need the motion_val from the last P/S-Frame */
9dbcbd92 1205 if (s->out_format == FMT_H263) { //FIXME move into h263.c if possible, format specific stuff shouldnt be here
6f91bcd1 1206 if(s->pict_type!=B_TYPE){
8257bf05 1207 int xy, wrap, motion_x, motion_y;
de6d9b64 1208
de6d9b64 1209 wrap = 2 * s->mb_width + 2;
8257bf05 1210 xy = 2 * mb_x + 1 + (2 * mb_y + 1) * wrap;
de6d9b64
FB
1211 if (s->mb_intra) {
1212 motion_x = 0;
1213 motion_y = 0;
1214 goto motion_init;
1215 } else if (s->mv_type == MV_TYPE_16X16) {
1216 motion_x = s->mv[0][0][0];
1217 motion_y = s->mv[0][0][1];
1218 motion_init:
1219 /* no update if 8X8 because it has been done during parsing */
8257bf05
ZK
1220 s->motion_val[xy][0] = motion_x;
1221 s->motion_val[xy][1] = motion_y;
1222 s->motion_val[xy + 1][0] = motion_x;
1223 s->motion_val[xy + 1][1] = motion_y;
1224 s->motion_val[xy + wrap][0] = motion_x;
1225 s->motion_val[xy + wrap][1] = motion_y;
1226 s->motion_val[xy + 1 + wrap][0] = motion_x;
1227 s->motion_val[xy + 1 + wrap][1] = motion_y;
de6d9b64 1228 }
6f91bcd1 1229 }
de6d9b64
FB
1230 }
1231
9dbcbd92 1232 if (!(s->encoding && (s->intra_only || s->pict_type==B_TYPE))) {
de6d9b64 1233 UINT8 *dest_y, *dest_cb, *dest_cr;
3bb4e23a
FB
1234 UINT8 *mbskip_ptr;
1235
9dbcbd92
MN
1236 /* avoid copy if macroblock skipped in last frame too
1237 dont touch it for B-frames as they need the skip info from the next p-frame */
1238 if (s->pict_type != B_TYPE) {
3bb4e23a
FB
1239 mbskip_ptr = &s->mbskip_table[s->mb_y * s->mb_width + s->mb_x];
1240 if (s->mb_skiped) {
1241 s->mb_skiped = 0;
9dbcbd92
MN
1242 /* if previous was skipped too, then nothing to do !
1243 skip only during decoding as we might trash the buffers during encoding a bit */
1244 if (*mbskip_ptr != 0 && !s->encoding)
3bb4e23a
FB
1245 goto the_end;
1246 *mbskip_ptr = 1; /* indicate that this time we skiped it */
1247 } else {
1248 *mbskip_ptr = 0; /* not skipped */
1249 }
1250 }
de6d9b64
FB
1251
1252 dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize) + mb_x * 16;
1253 dest_cb = s->current_picture[1] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
1254 dest_cr = s->current_picture[2] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
1255
1256 if (s->interlaced_dct) {
1257 dct_linesize = s->linesize * 2;
1258 dct_offset = s->linesize;
1259 } else {
1260 dct_linesize = s->linesize;
1261 dct_offset = s->linesize * 8;
1262 }
1263
1264 if (!s->mb_intra) {
1265 /* motion handling */
9dbcbd92 1266 if((s->flags&CODEC_FLAG_HQ) || (!s->encoding)){
91029be7 1267 if ((!s->no_rounding) || s->pict_type==B_TYPE){
9dbcbd92
MN
1268 op_pix = put_pixels_tab;
1269 op_qpix= qpel_mc_rnd_tab;
1270 }else{
1271 op_pix = put_no_rnd_pixels_tab;
1272 op_qpix= qpel_mc_no_rnd_tab;
1273 }
de6d9b64 1274
9dbcbd92
MN
1275 if (s->mv_dir & MV_DIR_FORWARD) {
1276 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
91029be7 1277 if ((!s->no_rounding) || s->pict_type==B_TYPE)
9dbcbd92
MN
1278 op_pix = avg_pixels_tab;
1279 else
1280 op_pix = avg_no_rnd_pixels_tab;
1281 }
1282 if (s->mv_dir & MV_DIR_BACKWARD) {
1283 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1284 }
de6d9b64
FB
1285 }
1286
1287 /* add dct residue */
1288 add_dct(s, block[0], 0, dest_y, dct_linesize);
1289 add_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1290 add_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1291 add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1292
51454751
FB
1293 add_dct(s, block[4], 4, dest_cb, s->linesize >> 1);
1294 add_dct(s, block[5], 5, dest_cr, s->linesize >> 1);
de6d9b64
FB
1295 } else {
1296 /* dct only in intra block */
1297 put_dct(s, block[0], 0, dest_y, dct_linesize);
1298 put_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1299 put_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1300 put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1301
51454751
FB
1302 put_dct(s, block[4], 4, dest_cb, s->linesize >> 1);
1303 put_dct(s, block[5], 5, dest_cr, s->linesize >> 1);
de6d9b64
FB
1304 }
1305 }
3bb4e23a 1306 the_end:
ba6802de 1307 emms_c(); //FIXME remove
de6d9b64
FB
1308}
1309
9dbcbd92
MN
1310
1311static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
de6d9b64 1312{
ba6802de
MN
1313 const int mb_x= s->mb_x;
1314 const int mb_y= s->mb_y;
ba6802de 1315 int i;
9dbcbd92
MN
1316#if 0
1317 if (s->interlaced_dct) {
1318 dct_linesize = s->linesize * 2;
1319 dct_offset = s->linesize;
1320 } else {
1321 dct_linesize = s->linesize;
1322 dct_offset = s->linesize * 8;
1323 }
1324#endif
ba6802de 1325
9dbcbd92
MN
1326 if (s->mb_intra) {
1327 UINT8 *ptr;
1328 int wrap;
1329
1330 wrap = s->linesize;
1331 ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
1332 get_pixels(s->block[0], ptr , wrap);
1333 get_pixels(s->block[1], ptr + 8, wrap);
1334 get_pixels(s->block[2], ptr + 8 * wrap , wrap);
1335 get_pixels(s->block[3], ptr + 8 * wrap + 8, wrap);
1336
1337 wrap >>=1;
1338 ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
1339 get_pixels(s->block[4], ptr, wrap);
1340
1341 ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
1342 get_pixels(s->block[5], ptr, wrap);
1343 }else{
1344 op_pixels_func *op_pix;
1345 qpel_mc_func *op_qpix;
1346 UINT8 *dest_y, *dest_cb, *dest_cr;
1347 UINT8 *ptr;
1348 int wrap;
1349
1350 dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize ) + mb_x * 16;
1351 dest_cb = s->current_picture[1] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
1352 dest_cr = s->current_picture[2] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
1353
91029be7 1354 if ((!s->no_rounding) || s->pict_type==B_TYPE){
9dbcbd92
MN
1355 op_pix = put_pixels_tab;
1356 op_qpix= qpel_mc_rnd_tab;
cf8039b2 1357 }else{
9dbcbd92
MN
1358 op_pix = put_no_rnd_pixels_tab;
1359 op_qpix= qpel_mc_no_rnd_tab;
1360 }
1361
1362 if (s->mv_dir & MV_DIR_FORWARD) {
1363 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
91029be7 1364 if ((!s->no_rounding) || s->pict_type==B_TYPE)
9dbcbd92
MN
1365 op_pix = avg_pixels_tab;
1366 else
1367 op_pix = avg_no_rnd_pixels_tab;
1368 }
1369 if (s->mv_dir & MV_DIR_BACKWARD) {
1370 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
ba6802de 1371 }
9dbcbd92
MN
1372 wrap = s->linesize;
1373 ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
1374 diff_pixels(s->block[0], ptr , dest_y , wrap);
1375 diff_pixels(s->block[1], ptr + 8, dest_y + 8, wrap);
1376 diff_pixels(s->block[2], ptr + 8 * wrap , dest_y + 8 * wrap , wrap);
1377 diff_pixels(s->block[3], ptr + 8 * wrap + 8, dest_y + 8 * wrap + 8, wrap);
1378
1379 wrap >>=1;
1380 ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
1381 diff_pixels(s->block[4], ptr, dest_cb, wrap);
1382
1383 ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
1384 diff_pixels(s->block[5], ptr, dest_cr, wrap);
ba6802de
MN
1385 }
1386
1387#if 0
1388 {
1389 float adap_parm;
1390
1391 adap_parm = ((s->avg_mb_var << 1) + s->mb_var[s->mb_width*mb_y+mb_x] + 1.0) /
1392 ((s->mb_var[s->mb_width*mb_y+mb_x] << 1) + s->avg_mb_var + 1.0);
1393
1394 printf("\ntype=%c qscale=%2d adap=%0.2f dquant=%4.2f var=%4d avgvar=%4d",
1395 (s->mb_type[s->mb_width*mb_y+mb_x] > 0) ? 'I' : 'P',
1396 s->qscale, adap_parm, s->qscale*adap_parm,
1397 s->mb_var[s->mb_width*mb_y+mb_x], s->avg_mb_var);
1398 }
1399#endif
1400 /* DCT & quantize */
1401 if (s->h263_msmpeg4) {
1402 msmpeg4_dc_scale(s);
1403 } else if (s->h263_pred) {
1404 h263_dc_scale(s);
1405 } else {
1406 /* default quantization values */
1407 s->y_dc_scale = 8;
1408 s->c_dc_scale = 8;
1409 }
1410 for(i=0;i<6;i++) {
1411 s->block_last_index[i] = dct_quantize(s, s->block[i], i, s->qscale);
1412 }
1413
1414 /* huffman encode */
1415 switch(s->out_format) {
1416 case FMT_MPEG1:
1417 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1418 break;
1419 case FMT_H263:
1420 if (s->h263_msmpeg4)
1421 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1422 else if(s->h263_pred)
1423 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1424 else
1425 h263_encode_mb(s, s->block, motion_x, motion_y);
1426 break;
1427 case FMT_MJPEG:
1428 mjpeg_encode_mb(s, s->block);
1429 break;
1430 }
1431}
1432
1433static void copy_bits(PutBitContext *pb, UINT8 *src, int length)
1434{
1f0cd30f
MN
1435#if 1
1436 int bytes= length>>4;
1437 int bits= length&15;
1438 int i;
1439
1440 for(i=0; i<bytes; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
1441 put_bits(pb, bits, be2me_16(((uint16_t*)src)[i])>>(16-bits));
1442#else
ba6802de
MN
1443 int bytes= length>>3;
1444 int bits= length&7;
1445 int i;
1446
1447 for(i=0; i<bytes; i++) put_bits(pb, 8, src[i]);
1448 put_bits(pb, bits, src[i]>>(8-bits));
1f0cd30f 1449#endif
ba6802de
MN
1450}
1451
1f0cd30f
MN
1452static void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1453 int i;
1454
1455 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1456
1457 /* mpeg1 */
1458 d->mb_incr= s->mb_incr;
1459 for(i=0; i<3; i++)
1460 d->last_dc[i]= s->last_dc[i];
1461
1462 /* statistics */
1463 d->mv_bits= s->mv_bits;
1464 d->i_tex_bits= s->i_tex_bits;
1465 d->p_tex_bits= s->p_tex_bits;
1466 d->i_count= s->i_count;
1467 d->p_count= s->p_count;
1468 d->skip_count= s->skip_count;
1469 d->misc_bits= s->misc_bits;
8b4c7dbc 1470 d->last_bits= 0;
91029be7
MN
1471
1472 d->mb_skiped= s->mb_skiped;
1f0cd30f
MN
1473}
1474
1475static void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1476 int i;
1477
1478 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1479 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1480
1481 /* mpeg1 */
1482 d->mb_incr= s->mb_incr;
1483 for(i=0; i<3; i++)
1484 d->last_dc[i]= s->last_dc[i];
1485
1486 /* statistics */
1487 d->mv_bits= s->mv_bits;
1488 d->i_tex_bits= s->i_tex_bits;
1489 d->p_tex_bits= s->p_tex_bits;
1490 d->i_count= s->i_count;
1491 d->p_count= s->p_count;
1492 d->skip_count= s->skip_count;
1493 d->misc_bits= s->misc_bits;
1f0cd30f
MN
1494
1495 d->mb_intra= s->mb_intra;
91029be7 1496 d->mb_skiped= s->mb_skiped;
1f0cd30f
MN
1497 d->mv_type= s->mv_type;
1498 d->mv_dir= s->mv_dir;
1499 d->pb= s->pb;
1500 d->block= s->block;
1501 for(i=0; i<6; i++)
1502 d->block_last_index[i]= s->block_last_index[i];
1503}
1504
1505
ba6802de
MN
1506static void encode_picture(MpegEncContext *s, int picture_number)
1507{
1508 int mb_x, mb_y, last_gob, pdif = 0;
1509 int i;
098eefe1 1510 int bits;
1f0cd30f 1511 MpegEncContext best_s, backup_s;
91029be7 1512 UINT8 bit_buf[7][3000]; //FIXME check that this is ALLWAYS large enogh for a MB
de6d9b64
FB
1513
1514 s->picture_number = picture_number;
9cdd6a24 1515
ba6802de
MN
1516 s->block_wrap[0]=
1517 s->block_wrap[1]=
1518 s->block_wrap[2]=
1519 s->block_wrap[3]= s->mb_width*2 + 2;
1520 s->block_wrap[4]=
1521 s->block_wrap[5]= s->mb_width + 2;
1522
9cdd6a24
MN
1523 /* Reset the average MB variance */
1524 s->avg_mb_var = 0;
1525 s->mc_mb_var = 0;
91029be7
MN
1526
1527 /* we need to initialize some time vars before we can encode b-frames */
1528 if (s->h263_pred && !s->h263_msmpeg4)
1529 ff_set_mpeg4_time(s, s->picture_number);
1530
9cdd6a24 1531 /* Estimate motion for every MB */
9dbcbd92
MN
1532 if(s->pict_type != I_TYPE){
1533// int16_t (*tmp)[2]= s->p_mv_table;
1534// s->p_mv_table= s->last_mv_table;
1535// s->last_mv_table= s->mv_table;
1536
ba6802de
MN
1537 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
1538 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
1539 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
1540 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
1541 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
1542 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1543 s->mb_x = mb_x;
1544 s->mb_y = mb_y;
1545 s->block_index[0]+=2;
1546 s->block_index[1]+=2;
1547 s->block_index[2]+=2;
1548 s->block_index[3]+=2;
1549
1550 /* compute motion vector & mb_type and store in context */
9dbcbd92
MN
1551 if(s->pict_type==B_TYPE)
1552 ff_estimate_b_frame_motion(s, mb_x, mb_y);
1553 else
1554 ff_estimate_p_frame_motion(s, mb_x, mb_y);
ba6802de 1555// s->mb_type[mb_y*s->mb_width + mb_x]=MB_TYPE_INTER;
9cdd6a24 1556 }
9cdd6a24 1557 }
ba6802de 1558 emms_c();
9dbcbd92 1559 }else if(s->pict_type == I_TYPE){
ba6802de
MN
1560 /* I-Frame */
1561 //FIXME do we need to zero them?
1562 memset(s->motion_val[0], 0, sizeof(INT16)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
9dbcbd92 1563 memset(s->p_mv_table , 0, sizeof(INT16)*(s->mb_width+2)*(s->mb_height+2)*2);
ba6802de 1564 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
9cdd6a24
MN
1565 }
1566
8b4c7dbc 1567 if(s->avg_mb_var < s->mc_mb_var && s->pict_type == P_TYPE){ //FIXME subtract MV bits
bd31a775 1568 s->pict_type= I_TYPE;
ba6802de 1569 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
8b4c7dbc
MN
1570 if(s->max_b_frames==0){
1571 s->input_pict_type= I_TYPE;
1572 s->input_picture_in_gop_number=0;
1573 }
ba6802de 1574//printf("Scene change detected, encoding as I Frame\n");
bd31a775 1575 }
9dbcbd92
MN
1576
1577 if(s->pict_type==P_TYPE || s->pict_type==S_TYPE)
1578 s->f_code= ff_get_best_fcode(s, s->p_mv_table, MB_TYPE_INTER);
1579 ff_fix_long_p_mvs(s);
1580 if(s->pict_type==B_TYPE){
1581 s->f_code= ff_get_best_fcode(s, s->b_forw_mv_table, MB_TYPE_FORWARD);
1582 s->b_code= ff_get_best_fcode(s, s->b_back_mv_table, MB_TYPE_BACKWARD);
91029be7
MN
1583
1584 ff_fix_long_b_mvs(s, s->b_forw_mv_table, s->f_code, MB_TYPE_FORWARD);
1585 ff_fix_long_b_mvs(s, s->b_back_mv_table, s->b_code, MB_TYPE_BACKWARD);
1586 ff_fix_long_b_mvs(s, s->b_bidir_forw_mv_table, s->f_code, MB_TYPE_BIDIR);
1587 ff_fix_long_b_mvs(s, s->b_bidir_back_mv_table, s->b_code, MB_TYPE_BIDIR);
45870f57 1588 }
9dbcbd92 1589
45870f57 1590//printf("f_code %d ///\n", s->f_code);
45870f57 1591
bd31a775
MN
1592// printf("%d %d\n", s->avg_mb_var, s->mc_mb_var);
1593
8b4c7dbc
MN
1594 if(s->flags&CODEC_FLAG_PASS2)
1595 s->qscale = ff_rate_estimate_qscale_pass2(s);
1596 else if (!s->fixed_qscale)
1597 s->qscale = ff_rate_estimate_qscale(s);
1598
de6d9b64
FB
1599
1600 /* precompute matrix */
1601 if (s->out_format == FMT_MJPEG) {
1602 /* for mjpeg, we do include qscale in the matrix */
1603 s->intra_matrix[0] = default_intra_matrix[0];
1604 for(i=1;i<64;i++)
1605 s->intra_matrix[i] = (default_intra_matrix[i] * s->qscale) >> 3;
2f349de2 1606 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, s->intra_matrix, 8);
de6d9b64 1607 } else {
2f349de2
MN
1608 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, s->intra_matrix, s->qscale);
1609 convert_matrix(s->q_non_intra_matrix, s->q_non_intra_matrix16, s->non_intra_matrix, s->qscale);
de6d9b64
FB
1610 }
1611
098eefe1 1612 s->last_bits= get_bit_count(&s->pb);
de6d9b64
FB
1613 switch(s->out_format) {
1614 case FMT_MJPEG:
1615 mjpeg_picture_header(s);
1616 break;
1617 case FMT_H263:
1618 if (s->h263_msmpeg4)
1619 msmpeg4_encode_picture_header(s, picture_number);
1620 else if (s->h263_pred)
1621 mpeg4_encode_picture_header(s, picture_number);
1622 else if (s->h263_rv10)
1623 rv10_encode_picture_header(s, picture_number);
1624 else
1625 h263_encode_picture_header(s, picture_number);
1626 break;
1627 case FMT_MPEG1:
1628 mpeg1_encode_picture_header(s, picture_number);
1629 break;
1630 }
098eefe1
MN
1631 bits= get_bit_count(&s->pb);
1632 s->header_bits= bits - s->last_bits;
1633 s->last_bits= bits;
1634 s->mv_bits=0;
1635 s->misc_bits=0;
1636 s->i_tex_bits=0;
1637 s->p_tex_bits=0;
1638 s->i_count=0;
1639 s->p_count=0;
1640 s->skip_count=0;
1641
de6d9b64
FB
1642 /* init last dc values */
1643 /* note: quant matrix value (8) is implied here */
1644 s->last_dc[0] = 128;
1645 s->last_dc[1] = 128;
1646 s->last_dc[2] = 128;
1647 s->mb_incr = 1;
1648 s->last_mv[0][0][0] = 0;
1649 s->last_mv[0][0][1] = 0;
de6d9b64 1650
644d98a4 1651 /* Get the GOB height based on picture height */
81401c1f 1652 if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4) {
644d98a4
J
1653 if (s->height <= 400)
1654 s->gob_index = 1;
1655 else if (s->height <= 800)
1656 s->gob_index = 2;
1657 else
1658 s->gob_index = 4;
1659 }
9cdd6a24 1660
e03c341e
J
1661 s->avg_mb_var = s->avg_mb_var / s->mb_num;
1662
1663 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
1664 /* Put GOB header based on RTP MTU */
1665 /* TODO: Put all this stuff in a separate generic function */
1666 if (s->rtp_mode) {
1667 if (!mb_y) {
1668 s->ptr_lastgob = s->pb.buf;
1669 s->ptr_last_mb_line = s->pb.buf;
1670 } else if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4 && !(mb_y % s->gob_index)) {
1671 last_gob = h263_encode_gob_header(s, mb_y);
1672 if (last_gob) {
1673 s->first_gob_line = 1;
1674 }
1675 }
1676 }
1677
4278e7a6
MN
1678 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
1679 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
1680 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
1681 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
1682 s->block_index[4]= s->block_wrap[4]*(mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2);
1683 s->block_index[5]= s->block_wrap[4]*(mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);
37fbfd0a 1684 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
91029be7
MN
1685 const int mb_type= s->mb_type[mb_y * s->mb_width + mb_x];
1686 const int xy= (mb_y+1) * (s->mb_width+2) + mb_x + 1;
ba6802de
MN
1687 PutBitContext pb;
1688 int d;
1689 int dmin=10000000;
1690 int best=0;
37fbfd0a
J
1691
1692 s->mb_x = mb_x;
1693 s->mb_y = mb_y;
4278e7a6
MN
1694 s->block_index[0]+=2;
1695 s->block_index[1]+=2;
1696 s->block_index[2]+=2;
1697 s->block_index[3]+=2;
1698 s->block_index[4]++;
1699 s->block_index[5]++;
ba6802de 1700 if(mb_type & (mb_type-1)){ // more than 1 MB type possible
91029be7 1701 int next_block=0;
ba6802de 1702 pb= s->pb;
1f0cd30f
MN
1703
1704 copy_context_before_encode(&backup_s, s, -1);
1705
ba6802de 1706 if(mb_type&MB_TYPE_INTER){
91029be7 1707 s->mv_dir = MV_DIR_FORWARD;
cf8039b2 1708 s->mv_type = MV_TYPE_16X16;
ba6802de 1709 s->mb_intra= 0;
9dbcbd92
MN
1710 s->mv[0][0][0] = s->p_mv_table[xy][0];
1711 s->mv[0][0][1] = s->p_mv_table[xy][1];
ba6802de 1712 init_put_bits(&s->pb, bit_buf[1], 3000, NULL, NULL);
91029be7 1713 s->block= s->blocks[next_block];
8b4c7dbc 1714 s->last_bits= 0; //done in copy_context_before_encode but we skip that here
ba6802de 1715
9dbcbd92 1716 encode_mb(s, s->mv[0][0][0], s->mv[0][0][1]);
ba6802de
MN
1717 d= get_bit_count(&s->pb);
1718 if(d<dmin){
1719 flush_put_bits(&s->pb);
1720 dmin=d;
1f0cd30f 1721 copy_context_after_encode(&best_s, s, MB_TYPE_INTER);
ba6802de 1722 best=1;
91029be7 1723 next_block^=1;
ba6802de 1724 }
de6d9b64 1725 }
1f0cd30f
MN
1726 if(mb_type&MB_TYPE_INTER4V){
1727 copy_context_before_encode(s, &backup_s, MB_TYPE_INTER4V);
91029be7 1728 s->mv_dir = MV_DIR_FORWARD;
cf8039b2
MN
1729 s->mv_type = MV_TYPE_8X8;
1730 s->mb_intra= 0;
1731 for(i=0; i<4; i++){
1732 s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
1733 s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
1734 }
1735 init_put_bits(&s->pb, bit_buf[2], 3000, NULL, NULL);
91029be7 1736 s->block= s->blocks[next_block];
cf8039b2 1737
9dbcbd92 1738 encode_mb(s, 0, 0);
cf8039b2 1739 d= get_bit_count(&s->pb);
91029be7 1740 if(d<dmin){
cf8039b2
MN
1741 flush_put_bits(&s->pb);
1742 dmin=d;
1f0cd30f 1743 copy_context_after_encode(&best_s, s, MB_TYPE_INTER4V);
cf8039b2 1744 best=2;
91029be7
MN
1745 next_block^=1;
1746 }
1747 }
1748 if(mb_type&MB_TYPE_FORWARD){
1749 copy_context_before_encode(s, &backup_s, MB_TYPE_FORWARD);
1750 s->mv_dir = MV_DIR_FORWARD;
1751 s->mv_type = MV_TYPE_16X16;
1752 s->mb_intra= 0;
1753 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
1754 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
1755 init_put_bits(&s->pb, bit_buf[3], 3000, NULL, NULL);
1756 s->block= s->blocks[next_block];
1757
1758 encode_mb(s, s->mv[0][0][0], s->mv[0][0][1]);
1759 d= get_bit_count(&s->pb);
1760 if(d<dmin){
1761 flush_put_bits(&s->pb);
1762 dmin=d;
1763 copy_context_after_encode(&best_s, s, MB_TYPE_FORWARD);
1764 best=3;
1765 next_block^=1;
1766 }
1767 }
1768 if(mb_type&MB_TYPE_BACKWARD){
1769 copy_context_before_encode(s, &backup_s, MB_TYPE_BACKWARD);
1770 s->mv_dir = MV_DIR_BACKWARD;
1771 s->mv_type = MV_TYPE_16X16;
1772 s->mb_intra= 0;
1773 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
1774 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
1775 init_put_bits(&s->pb, bit_buf[4], 3000, NULL, NULL);
1776 s->block= s->blocks[next_block];
1777
1778 encode_mb(s, s->mv[1][0][0], s->mv[1][0][1]);
1779 d= get_bit_count(&s->pb);
1780 if(d<dmin){
1781 flush_put_bits(&s->pb);
1782 dmin=d;
1783 copy_context_after_encode(&best_s, s, MB_TYPE_BACKWARD);
1784 best=4;
1785 next_block^=1;
1786 }
1787 }
1788 if(mb_type&MB_TYPE_BIDIR){
1789 copy_context_before_encode(s, &backup_s, MB_TYPE_BIDIR);
1790 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
1791 s->mv_type = MV_TYPE_16X16;
1792 s->mb_intra= 0;
1793 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
1794 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
1795 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
1796 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
1797 init_put_bits(&s->pb, bit_buf[5], 3000, NULL, NULL);
1798 s->block= s->blocks[next_block];
1799
1800 encode_mb(s, 0, 0);
1801 d= get_bit_count(&s->pb);
1802 if(d<dmin){
1803 flush_put_bits(&s->pb);
1804 dmin=d;
1805 copy_context_after_encode(&best_s, s, MB_TYPE_BIDIR);
1806 best=5;
1807 next_block^=1;
1808 }
1809 }
1810 if(mb_type&MB_TYPE_DIRECT){
1811 copy_context_before_encode(s, &backup_s, MB_TYPE_DIRECT);
1812 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
1813 s->mv_type = MV_TYPE_16X16; //FIXME
1814 s->mb_intra= 0;
1815 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
1816 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
1817 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
1818 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
1819 init_put_bits(&s->pb, bit_buf[6], 3000, NULL, NULL);
1820 s->block= s->blocks[next_block];
1821
1822 encode_mb(s, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
1823 d= get_bit_count(&s->pb);
1824 if(d<dmin){
1825 flush_put_bits(&s->pb);
1826 dmin=d;
1827 copy_context_after_encode(&best_s, s, MB_TYPE_DIRECT);
1828 best=6;
1829 next_block^=1;
cf8039b2
MN
1830 }
1831 }
ba6802de 1832 if(mb_type&MB_TYPE_INTRA){
1f0cd30f 1833 copy_context_before_encode(s, &backup_s, MB_TYPE_INTRA);
91029be7 1834 s->mv_dir = MV_DIR_FORWARD;
cf8039b2 1835 s->mv_type = MV_TYPE_16X16;
ba6802de
MN
1836 s->mb_intra= 1;
1837 s->mv[0][0][0] = 0;
1838 s->mv[0][0][1] = 0;
1839 init_put_bits(&s->pb, bit_buf[0], 3000, NULL, NULL);
91029be7 1840 s->block= s->blocks[next_block];
ba6802de 1841
9dbcbd92 1842 encode_mb(s, 0, 0);
ba6802de
MN
1843 d= get_bit_count(&s->pb);
1844 if(d<dmin){
1845 flush_put_bits(&s->pb);
1846 dmin=d;
1f0cd30f 1847 copy_context_after_encode(&best_s, s, MB_TYPE_INTRA);
ba6802de 1848 best=0;
91029be7 1849 next_block^=1;
ba6802de 1850 }
1f0cd30f
MN
1851 /* force cleaning of ac/dc pred stuff if needed ... */
1852 if(s->h263_pred || s->h263_aic)
1853 s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
cf8039b2 1854 }
1f0cd30f 1855 copy_context_after_encode(s, &best_s, -1);
ba6802de 1856 copy_bits(&pb, bit_buf[best], dmin);
ba6802de 1857 s->pb= pb;
8b4c7dbc 1858 s->last_bits= get_bit_count(&s->pb);
de6d9b64 1859 } else {
9dbcbd92
MN
1860 int motion_x, motion_y;
1861 s->mv_type=MV_TYPE_16X16;
ba6802de 1862 // only one MB-Type possible
91029be7
MN
1863 switch(mb_type){
1864 case MB_TYPE_INTRA:
9dbcbd92 1865 s->mv_dir = MV_DIR_FORWARD;
ba6802de 1866 s->mb_intra= 1;
9dbcbd92
MN
1867 motion_x= s->mv[0][0][0] = 0;
1868 motion_y= s->mv[0][0][1] = 0;
91029be7
MN
1869 break;
1870 case MB_TYPE_INTER:
9dbcbd92
MN
1871 s->mv_dir = MV_DIR_FORWARD;
1872 s->mb_intra= 0;
1873 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
1874 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
91029be7
MN
1875 break;
1876 case MB_TYPE_DIRECT:
9dbcbd92
MN
1877 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
1878 s->mb_intra= 0;
91029be7
MN
1879 motion_x=s->b_direct_mv_table[xy][0];
1880 motion_y=s->b_direct_mv_table[xy][1];
1881 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
1882 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
1883 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
1884 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
1885 break;
1886 case MB_TYPE_BIDIR:
9dbcbd92 1887 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
ba6802de 1888 s->mb_intra= 0;
9dbcbd92
MN
1889 motion_x=0;
1890 motion_y=0;
1891 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
1892 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
1893 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
1894 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
91029be7
MN
1895 break;
1896 case MB_TYPE_BACKWARD:
9dbcbd92
MN
1897 s->mv_dir = MV_DIR_BACKWARD;
1898 s->mb_intra= 0;
1899 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
1900 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
91029be7
MN
1901 break;
1902 case MB_TYPE_FORWARD:
9dbcbd92
MN
1903 s->mv_dir = MV_DIR_FORWARD;
1904 s->mb_intra= 0;
1905 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
1906 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
1907// printf(" %d %d ", motion_x, motion_y);
91029be7
MN
1908 break;
1909 default:
9dbcbd92
MN
1910 motion_x=motion_y=0; //gcc warning fix
1911 printf("illegal MB type\n");
ba6802de 1912 }
9dbcbd92 1913 encode_mb(s, motion_x, motion_y);
de6d9b64 1914 }
91029be7
MN
1915 /* clean the MV table in IPS frames for direct mode in B frames */
1916 if(s->mb_intra /* && I,P,S_TYPE */){
1917 s->p_mv_table[xy][0]=0;
1918 s->p_mv_table[xy][1]=0;
1919 }
de6d9b64 1920
21af69f7 1921 MPV_decode_mb(s, s->block);
de6d9b64 1922 }
17592475
MN
1923
1924
81401c1f
J
1925 /* Obtain average GOB size for RTP */
1926 if (s->rtp_mode) {
1927 if (!mb_y)
17592475 1928 s->mb_line_avgsize = pbBufPtr(&s->pb) - s->ptr_last_mb_line;
81401c1f 1929 else if (!(mb_y % s->gob_index)) {
17592475
MN
1930 s->mb_line_avgsize = (s->mb_line_avgsize + pbBufPtr(&s->pb) - s->ptr_last_mb_line) >> 1;
1931 s->ptr_last_mb_line = pbBufPtr(&s->pb);
81401c1f
J
1932 }
1933 //fprintf(stderr, "\nMB line: %d\tSize: %u\tAvg. Size: %u", s->mb_y,
1934 // (s->pb.buf_ptr - s->ptr_last_mb_line), s->mb_line_avgsize);
1935 s->first_gob_line = 0;
1936 }
de6d9b64 1937 }
ba6802de 1938 emms_c();
098eefe1 1939
e1a9dbff 1940 if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
ae40484c
MN
1941 msmpeg4_encode_ext_header(s);
1942
644d98a4
J
1943 //if (s->gob_number)
1944 // fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
81401c1f
J
1945
1946 /* Send the last GOB if RTP */
1947 if (s->rtp_mode) {
1948 flush_put_bits(&s->pb);
17592475 1949 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
81401c1f
J
1950 /* Call the RTP callback to send the last GOB */
1951 if (s->rtp_callback)
1952 s->rtp_callback(s->ptr_lastgob, pdif, s->gob_number);
17592475 1953 s->ptr_lastgob = pbBufPtr(&s->pb);
81401c1f
J
1954 //fprintf(stderr,"\nGOB: %2d size: %d (last)", s->gob_number, pdif);
1955 }
de6d9b64
FB
1956}
1957
2f349de2 1958static int dct_quantize_c(MpegEncContext *s,
de6d9b64
FB
1959 DCTELEM *block, int n,
1960 int qscale)
1961{
1962 int i, j, level, last_non_zero, q;
1963 const int *qmat;
4e3269e8
MN
1964 int minLevel, maxLevel;
1965
1966 if(s->avctx!=NULL && s->avctx->codec->id==CODEC_ID_MPEG4){
1967 /* mpeg4 */
1968 minLevel= -2048;
1969 maxLevel= 2047;
1970 }else if(s->out_format==FMT_MPEG1){
1971 /* mpeg1 */
1972 minLevel= -255;
1973 maxLevel= 255;
3cb32e3d
A
1974 }else if(s->out_format==FMT_MJPEG){
1975 /* (m)jpeg */
1976 minLevel= -1023;
1977 maxLevel= 1023;
4e3269e8
MN
1978 }else{
1979 /* h263 / msmpeg4 */
1980 minLevel= -128;
1981 maxLevel= 127;
1982 }
de6d9b64
FB
1983
1984 av_fdct (block);
1985
1a565432
FB
1986 /* we need this permutation so that we correct the IDCT
1987 permutation. will be moved into DCT code */
1988 block_permute(block);
1989
de6d9b64
FB
1990 if (s->mb_intra) {
1991 if (n < 4)
1992 q = s->y_dc_scale;
1993 else
1994 q = s->c_dc_scale;
1995 q = q << 3;
1996
1997 /* note: block[0] is assumed to be positive */
1998 block[0] = (block[0] + (q >> 1)) / q;
1999 i = 1;
2000 last_non_zero = 0;
2001 if (s->out_format == FMT_H263) {
2002 qmat = s->q_non_intra_matrix;
2003 } else {
2004 qmat = s->q_intra_matrix;
2005 }
2006 } else {
2007 i = 0;
2008 last_non_zero = -1;
2009 qmat = s->q_non_intra_matrix;
2010 }
2011
2012 for(;i<64;i++) {
2013 j = zigzag_direct[i];
2014 level = block[j];
2015 level = level * qmat[j];
2016#ifdef PARANOID
2017 {
2018 static int count = 0;
2019 int level1, level2, qmat1;
2020 double val;
2021 if (qmat == s->q_non_intra_matrix) {
2022 qmat1 = default_non_intra_matrix[j] * s->qscale;
2023 } else {
2024 qmat1 = default_intra_matrix[j] * s->qscale;
2025 }
2026 if (av_fdct != jpeg_fdct_ifast)
2027 val = ((double)block[j] * 8.0) / (double)qmat1;
2028 else
2029 val = ((double)block[j] * 8.0 * 2048.0) /
2030 ((double)qmat1 * aanscales[j]);
2031 level1 = (int)val;
2032 level2 = level / (1 << (QMAT_SHIFT - 3));
2033 if (level1 != level2) {
2034 fprintf(stderr, "%d: quant error qlevel=%d wanted=%d level=%d qmat1=%d qmat=%d wantedf=%0.6f\n",
2035 count, level2, level1, block[j], qmat1, qmat[j],
2036 val);
2037 count++;
2038 }
2039
2040 }
2041#endif
2042 /* XXX: slight error for the low range. Test should be equivalent to
2043 (level <= -(1 << (QMAT_SHIFT - 3)) || level >= (1 <<
2044 (QMAT_SHIFT - 3)))
2045 */
2046 if (((level << (31 - (QMAT_SHIFT - 3))) >> (31 - (QMAT_SHIFT - 3))) !=
2047 level) {
2048 level = level / (1 << (QMAT_SHIFT - 3));
2049 /* XXX: currently, this code is not optimal. the range should be:
2050 mpeg1: -255..255
2051 mpeg2: -2048..2047
2052 h263: -128..127
2053 mpeg4: -2048..2047
2054 */
4e3269e8
MN
2055 if (level > maxLevel)
2056 level = maxLevel;
2057 else if (level < minLevel)
2058 level = minLevel;
de6d9b64 2059
de6d9b64
FB
2060 block[j] = level;
2061 last_non_zero = i;
2062 } else {
2063 block[j] = 0;
2064 }
2065 }
2066 return last_non_zero;
2067}
2068
21af69f7
FB
2069static void dct_unquantize_mpeg1_c(MpegEncContext *s,
2070 DCTELEM *block, int n, int qscale)
de6d9b64 2071{
badaf88e 2072 int i, level, nCoeffs;
de6d9b64
FB
2073 const UINT16 *quant_matrix;
2074
badaf88e
MN
2075 if(s->alternate_scan) nCoeffs= 64;
2076 else nCoeffs= s->block_last_index[n]+1;
2077
de6d9b64
FB
2078 if (s->mb_intra) {
2079 if (n < 4)
2080 block[0] = block[0] * s->y_dc_scale;
2081 else
2082 block[0] = block[0] * s->c_dc_scale;
de6d9b64
FB
2083 /* XXX: only mpeg1 */
2084 quant_matrix = s->intra_matrix;
badaf88e
MN
2085 for(i=1;i<nCoeffs;i++) {
2086 int j= zigzag_direct[i];
2087 level = block[j];
de6d9b64
FB
2088 if (level) {
2089 if (level < 0) {
2090 level = -level;
badaf88e 2091 level = (int)(level * qscale * quant_matrix[j]) >> 3;
de6d9b64
FB
2092 level = (level - 1) | 1;
2093 level = -level;
2094 } else {
badaf88e 2095 level = (int)(level * qscale * quant_matrix[j]) >> 3;
de6d9b64
FB
2096 level = (level - 1) | 1;
2097 }
2098#ifdef PARANOID
2099 if (level < -2048 || level > 2047)
2100 fprintf(stderr, "unquant error %d %d\n", i, level);
2101#endif
badaf88e 2102 block[j] = level;
de6d9b64
FB
2103 }
2104 }
2105 } else {
2106 i = 0;
de6d9b64 2107 quant_matrix = s->non_intra_matrix;
d2b3c3d7 2108 for(;i<nCoeffs;i++) {
badaf88e
MN
2109 int j= zigzag_direct[i];
2110 level = block[j];
de6d9b64
FB
2111 if (level) {
2112 if (level < 0) {
2113 level = -level;
2114 level = (((level << 1) + 1) * qscale *
badaf88e 2115 ((int) (quant_matrix[j]))) >> 4;
de6d9b64
FB
2116 level = (level - 1) | 1;
2117 level = -level;
2118 } else {
2119 level = (((level << 1) + 1) * qscale *
badaf88e 2120 ((int) (quant_matrix[j]))) >> 4;
de6d9b64
FB
2121 level = (level - 1) | 1;
2122 }
2123#ifdef PARANOID
2124 if (level < -2048 || level > 2047)
2125 fprintf(stderr, "unquant error %d %d\n", i, level);
2126#endif
badaf88e 2127 block[j] = level;
de6d9b64
FB
2128 }
2129 }
2130 }
2131}
21af69f7 2132
9dbf1ddd
MN
2133static void dct_unquantize_mpeg2_c(MpegEncContext *s,
2134 DCTELEM *block, int n, int qscale)
2135{
2136 int i, level, nCoeffs;
2137 const UINT16 *quant_matrix;
2138
2139 if(s->alternate_scan) nCoeffs= 64;
2140 else nCoeffs= s->block_last_index[n]+1;
2141
2142 if (s->mb_intra) {
2143 if (n < 4)
2144 block[0] = block[0] * s->y_dc_scale;
2145 else
2146 block[0] = block[0] * s->c_dc_scale;
2147 quant_matrix = s->intra_matrix;
2148 for(i=1;i<nCoeffs;i++) {
2149 int j= zigzag_direct[i];
2150 level = block[j];
2151 if (level) {
2152 if (level < 0) {
2153 level = -level;
2154 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2155 level = -level;
2156 } else {
2157 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2158 }
2159#ifdef PARANOID
2160 if (level < -2048 || level > 2047)
2161 fprintf(stderr, "unquant error %d %d\n", i, level);
2162#endif
2163 block[j] = level;
2164 }
2165 }
2166 } else {
2167 int sum=-1;
2168 i = 0;
2169 quant_matrix = s->non_intra_matrix;
2170 for(;i<nCoeffs;i++) {
2171 int j= zigzag_direct[i];
2172 level = block[j];
2173 if (level) {
2174 if (level < 0) {
2175 level = -level;
2176 level = (((level << 1) + 1) * qscale *
2177 ((int) (quant_matrix[j]))) >> 4;
2178 level = -level;
2179 } else {
2180 level = (((level << 1) + 1) * qscale *
2181 ((int) (quant_matrix[j]))) >> 4;
2182 }
2183#ifdef PARANOID
2184 if (level < -2048 || level > 2047)
2185 fprintf(stderr, "unquant error %d %d\n", i, level);
2186#endif
2187 block[j] = level;
2188 sum+=level;
2189 }
2190 }
2191 block[63]^=sum&1;
2192 }
2193}
2194
2195
21af69f7
FB
2196static void dct_unquantize_h263_c(MpegEncContext *s,
2197 DCTELEM *block, int n, int qscale)
2198{
2199 int i, level, qmul, qadd;
badaf88e 2200 int nCoeffs;
9e15ad28 2201
21af69f7 2202 if (s->mb_intra) {
9e15ad28
J
2203 if (!s->h263_aic) {
2204 if (n < 4)
2205 block[0] = block[0] * s->y_dc_scale;
2206 else
2207 block[0] = block[0] * s->c_dc_scale;
2208 }
21af69f7 2209 i = 1;
badaf88e 2210 nCoeffs= 64; //does not allways use zigzag table
21af69f7
FB
2211 } else {
2212 i = 0;
badaf88e 2213 nCoeffs= zigzag_end[ s->block_last_index[n] ];
21af69f7
FB
2214 }
2215
2216 qmul = s->qscale << 1;
d140623f
J
2217 if (s->h263_aic && s->mb_intra)
2218 qadd = 0;
2219 else
2220 qadd = (s->qscale - 1) | 1;
21af69f7 2221
badaf88e 2222 for(;i<nCoeffs;i++) {
21af69f7
FB
2223 level = block[i];
2224 if (level) {
2225 if (level < 0) {
2226 level = level * qmul - qadd;
2227 } else {
2228 level = level * qmul + qadd;
2229 }
2230#ifdef PARANOID
2231 if (level < -2048 || level > 2047)
2232 fprintf(stderr, "unquant error %d %d\n", i, level);
2233#endif
2234 block[i] = level;
2235 }
2236 }
2237}
de6d9b64 2238
de6d9b64
FB
2239AVCodec mpeg1video_encoder = {
2240 "mpeg1video",
2241 CODEC_TYPE_VIDEO,
2242 CODEC_ID_MPEG1VIDEO,
2243 sizeof(MpegEncContext),
2244 MPV_encode_init,
2245 MPV_encode_picture,
2246 MPV_encode_end,
2247};
2248
2249AVCodec h263_encoder = {
2250 "h263",
2251 CODEC_TYPE_VIDEO,
2252 CODEC_ID_H263,
2253 sizeof(MpegEncContext),
2254 MPV_encode_init,
2255 MPV_encode_picture,
2256 MPV_encode_end,
2257};
2258
2259AVCodec h263p_encoder = {
2260 "h263p",
2261 CODEC_TYPE_VIDEO,
2262 CODEC_ID_H263P,
2263 sizeof(MpegEncContext),
2264 MPV_encode_init,
2265 MPV_encode_picture,
2266 MPV_encode_end,
2267};
2268
2269AVCodec rv10_encoder = {
2270 "rv10",
2271 CODEC_TYPE_VIDEO,
2272 CODEC_ID_RV10,
2273 sizeof(MpegEncContext),
2274 MPV_encode_init,
2275 MPV_encode_picture,
2276 MPV_encode_end,
2277};
2278
2279AVCodec mjpeg_encoder = {
2280 "mjpeg",
2281 CODEC_TYPE_VIDEO,
2282 CODEC_ID_MJPEG,
2283 sizeof(MpegEncContext),
2284 MPV_encode_init,
2285 MPV_encode_picture,
2286 MPV_encode_end,
2287};
2288
58f26ba9
FB
2289AVCodec mpeg4_encoder = {
2290 "mpeg4",
de6d9b64 2291 CODEC_TYPE_VIDEO,
58f26ba9 2292 CODEC_ID_MPEG4,
de6d9b64
FB
2293 sizeof(MpegEncContext),
2294 MPV_encode_init,
2295 MPV_encode_picture,
2296 MPV_encode_end,
2297};
2298
84afee34
MN
2299AVCodec msmpeg4v1_encoder = {
2300 "msmpeg4v1",
2301 CODEC_TYPE_VIDEO,
2302 CODEC_ID_MSMPEG4V1,
2303 sizeof(MpegEncContext),
2304 MPV_encode_init,
2305 MPV_encode_picture,
2306 MPV_encode_end,
2307};
2308
2309AVCodec msmpeg4v2_encoder = {
2310 "msmpeg4v2",
2311 CODEC_TYPE_VIDEO,
2312 CODEC_ID_MSMPEG4V2,
2313 sizeof(MpegEncContext),
2314 MPV_encode_init,
2315 MPV_encode_picture,
2316 MPV_encode_end,
2317};
2318
2319AVCodec msmpeg4v3_encoder = {
de6d9b64
FB
2320 "msmpeg4",
2321 CODEC_TYPE_VIDEO,
84afee34 2322 CODEC_ID_MSMPEG4V3,
de6d9b64
FB
2323 sizeof(MpegEncContext),
2324 MPV_encode_init,
2325 MPV_encode_picture,
2326 MPV_encode_end,
2327};