dont double check vectors
[libav.git] / libavcodec / mpegvideo.c
CommitLineData
de6d9b64
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1/*
2 * The simplest mpeg encoder (well, it was the simplest!)
ff4ec49e 3 * Copyright (c) 2000,2001 Fabrice Bellard.
de6d9b64 4 *
ff4ec49e
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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.
de6d9b64 9 *
ff4ec49e 10 * This library is distributed in the hope that it will be useful,
de6d9b64 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
ff4ec49e
FB
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
ff4ec49e
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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
cf8039b2 18 *
9dbf1ddd 19 * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
de6d9b64 20 */
de6d9b64
FB
21#include "avcodec.h"
22#include "dsputil.h"
23#include "mpegvideo.h"
24
54329dd5
NK
25#ifdef USE_FASTMEMCPY
26#include "fastmemcpy.h"
27#endif
28
21af69f7 29static void encode_picture(MpegEncContext *s, int picture_number);
21af69f7
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30static void dct_unquantize_mpeg1_c(MpegEncContext *s,
31 DCTELEM *block, int n, int qscale);
9dbf1ddd
MN
32static void dct_unquantize_mpeg2_c(MpegEncContext *s,
33 DCTELEM *block, int n, int qscale);
21af69f7
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34static void dct_unquantize_h263_c(MpegEncContext *s,
35 DCTELEM *block, int n, int qscale);
3d9fccbf 36static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w);
d7e9533a 37static int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
3d9fccbf 38
d7e9533a 39int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)= dct_quantize_c;
3d9fccbf
MN
40void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w)= draw_edges_c;
41
de6d9b64
FB
42#define EDGE_WIDTH 16
43
44/* enable all paranoid tests for rounding, overflows, etc... */
45//#define PARANOID
46
47//#define DEBUG
48
101bea5f 49
de6d9b64
FB
50/* for jpeg fast DCT */
51#define CONST_BITS 14
52
53static const unsigned short aanscales[64] = {
54 /* precomputed values scaled up by 14 bits */
55 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
56 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
57 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
58 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
59 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
60 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
61 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446,
62 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247
63};
64
65static UINT8 h263_chroma_roundtab[16] = {
66 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
67};
68
9c15096e 69static UINT16 default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
45870f57
MN
70static UINT8 default_fcode_tab[MAX_MV*2+1];
71
badaf88e
MN
72extern UINT8 zigzag_end[64];
73
101bea5f
J
74/* default motion estimation */
75int motion_estimation_method = ME_EPZS;
76
d7e9533a
MN
77static void convert_matrix(int (*qmat)[64], uint16_t (*qmat16)[64], uint16_t (*qmat16_bias)[64],
78 const UINT16 *quant_matrix, int bias)
de6d9b64 79{
d7e9533a
MN
80 int qscale;
81
82 for(qscale=1; qscale<32; qscale++){
83 int i;
84 if (av_fdct == jpeg_fdct_ifast) {
85 for(i=0;i<64;i++) {
86 const int j= block_permute_op(i);
87 /* 16 <= qscale * quant_matrix[i] <= 7905 */
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 */
91
92 qmat[qscale][j] = (int)((UINT64_C(1) << (QMAT_SHIFT + 11)) /
93 (aanscales[i] * qscale * quant_matrix[j]));
94 }
95 } else {
96 for(i=0;i<64;i++) {
97 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
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
101 */
102 qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
103 qmat16[qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[block_permute_op(i)]);
104
105 if(qmat16[qscale][i]==0 || qmat16[qscale][i]==128*256) qmat16[qscale][i]=128*256-1;
106
107 qmat16_bias[qscale][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][i]);
108 }
de6d9b64
FB
109 }
110 }
111}
112
113/* init common structure for both encoder and decoder */
114int MPV_common_init(MpegEncContext *s)
115{
116 int c_size, i;
117 UINT8 *pict;
118
3bf43d42 119 s->dct_unquantize_h263 = dct_unquantize_h263_c;
9dbf1ddd
MN
120 s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_c;
121 s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_c;
21af69f7
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122
123#ifdef HAVE_MMX
124 MPV_common_init_mmx(s);
a9b3f630 125#endif
3bf43d42
MN
126 //setup default unquantizers (mpeg4 might change it later)
127 if(s->out_format == FMT_H263)
128 s->dct_unquantize = s->dct_unquantize_h263;
129 else
9dbf1ddd 130 s->dct_unquantize = s->dct_unquantize_mpeg1;
3bf43d42 131
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FB
132 s->mb_width = (s->width + 15) / 16;
133 s->mb_height = (s->height + 15) / 16;
e03c341e 134 s->mb_num = s->mb_width * s->mb_height;
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135 s->linesize = s->mb_width * 16 + 2 * EDGE_WIDTH;
136
137 for(i=0;i<3;i++) {
138 int w, h, shift, pict_start;
139
140 w = s->linesize;
141 h = s->mb_height * 16 + 2 * EDGE_WIDTH;
142 shift = (i == 0) ? 0 : 1;
143 c_size = (w >> shift) * (h >> shift);
144 pict_start = (w >> shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
145
146 pict = av_mallocz(c_size);
147 if (pict == NULL)
148 goto fail;
149 s->last_picture_base[i] = pict;
150 s->last_picture[i] = pict + pict_start;
151
152 pict = av_mallocz(c_size);
153 if (pict == NULL)
154 goto fail;
155 s->next_picture_base[i] = pict;
156 s->next_picture[i] = pict + pict_start;
9dbcbd92 157
7aaf3b98
MN
158 if (s->has_b_frames || s->codec_id==CODEC_ID_MPEG4) {
159 /* Note the MPEG4 stuff is here cuz of buggy encoders which dont set the low_delay flag but
160 do low-delay encoding, so we cant allways distinguish b-frame containing streams from low_delay streams */
de6d9b64
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161 pict = av_mallocz(c_size);
162 if (pict == NULL)
163 goto fail;
164 s->aux_picture_base[i] = pict;
165 s->aux_picture[i] = pict + pict_start;
166 }
167 }
37fbfd0a
J
168
169 if (s->encoding) {
9dbcbd92
MN
170 int j;
171 int mv_table_size= (s->mb_width+2)*(s->mb_height+2);
172
37fbfd0a 173 /* Allocate MB type table */
b4dbd87c 174 s->mb_type = av_mallocz(s->mb_num * sizeof(char));
37fbfd0a
J
175 if (s->mb_type == NULL) {
176 perror("malloc");
177 goto fail;
178 }
b4dbd87c
J
179
180 s->mb_var = av_mallocz(s->mb_num * sizeof(INT16));
181 if (s->mb_var == NULL) {
182 perror("malloc");
183 goto fail;
184 }
9dbcbd92
MN
185
186 /* Allocate MV tables */
187 s->p_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
188 if (s->p_mv_table == NULL) {
189 perror("malloc");
190 goto fail;
191 }
192 s->last_p_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
193 if (s->last_p_mv_table == NULL) {
194 perror("malloc");
195 goto fail;
196 }
197 s->b_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
198 if (s->b_forw_mv_table == NULL) {
199 perror("malloc");
200 goto fail;
201 }
202 s->b_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
203 if (s->b_back_mv_table == NULL) {
204 perror("malloc");
205 goto fail;
206 }
207 s->b_bidir_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
208 if (s->b_bidir_forw_mv_table == NULL) {
209 perror("malloc");
210 goto fail;
211 }
212 s->b_bidir_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
213 if (s->b_bidir_back_mv_table == NULL) {
214 perror("malloc");
215 goto fail;
216 }
217 s->b_direct_forw_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
218 if (s->b_direct_forw_mv_table == NULL) {
37fbfd0a
J
219 perror("malloc");
220 goto fail;
221 }
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MN
222 s->b_direct_back_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
223 if (s->b_direct_back_mv_table == NULL) {
224 perror("malloc");
225 goto fail;
226 }
227 s->b_direct_mv_table = av_mallocz(mv_table_size * 2 * sizeof(INT16));
228 if (s->b_direct_mv_table == NULL) {
229 perror("malloc");
230 goto fail;
231 }
232
91029be7
MN
233 s->me_scratchpad = av_mallocz( s->linesize*16*3*sizeof(uint8_t));
234 if (s->me_scratchpad == NULL) {
235 perror("malloc");
236 goto fail;
237 }
238
9dbcbd92
MN
239 if(s->max_b_frames){
240 for(j=0; j<REORDER_BUFFER_SIZE; j++){
241 int i;
242 for(i=0;i<3;i++) {
243 int w, h, shift;
244
245 w = s->linesize;
246 h = s->mb_height * 16;
247 shift = (i == 0) ? 0 : 1;
248 c_size = (w >> shift) * (h >> shift);
249
250 pict = av_mallocz(c_size);
251 if (pict == NULL)
252 goto fail;
253 s->picture_buffer[j][i] = pict;
254 }
255 }
256 }
37fbfd0a
J
257 }
258
174489bd 259 if (s->out_format == FMT_H263 || s->encoding) {
de6d9b64
FB
260 int size;
261 /* MV prediction */
262 size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
6000abfa 263 s->motion_val = av_malloc(size * 2 * sizeof(INT16));
de6d9b64
FB
264 if (s->motion_val == NULL)
265 goto fail;
266 memset(s->motion_val, 0, size * 2 * sizeof(INT16));
267 }
268
d140623f 269 if (s->h263_pred || s->h263_plus) {
de6d9b64
FB
270 int y_size, c_size, i, size;
271
272 /* dc values */
273
274 y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
275 c_size = (s->mb_width + 2) * (s->mb_height + 2);
276 size = y_size + 2 * c_size;
6000abfa 277 s->dc_val[0] = av_malloc(size * sizeof(INT16));
de6d9b64
FB
278 if (s->dc_val[0] == NULL)
279 goto fail;
280 s->dc_val[1] = s->dc_val[0] + y_size;
281 s->dc_val[2] = s->dc_val[1] + c_size;
282 for(i=0;i<size;i++)
283 s->dc_val[0][i] = 1024;
284
285 /* ac values */
286 s->ac_val[0] = av_mallocz(size * sizeof(INT16) * 16);
287 if (s->ac_val[0] == NULL)
288 goto fail;
289 s->ac_val[1] = s->ac_val[0] + y_size;
290 s->ac_val[2] = s->ac_val[1] + c_size;
291
292 /* cbp values */
293 s->coded_block = av_mallocz(y_size);
294 if (!s->coded_block)
295 goto fail;
bff6ecaa
MN
296
297 /* which mb is a intra block */
e03c341e 298 s->mbintra_table = av_mallocz(s->mb_num);
bff6ecaa
MN
299 if (!s->mbintra_table)
300 goto fail;
e03c341e 301 memset(s->mbintra_table, 1, s->mb_num);
eec1c6b9
MN
302
303 /* divx501 bitstream reorder buffer */
304 s->bitstream_buffer= av_mallocz(BITSTREAM_BUFFER_SIZE);
305 if (!s->bitstream_buffer)
306 goto fail;
5b3438c6 307 }
de6d9b64
FB
308 /* default structure is frame */
309 s->picture_structure = PICT_FRAME;
310
3bb4e23a 311 /* init macroblock skip table */
9dbcbd92
MN
312 s->mbskip_table = av_mallocz(s->mb_num);
313 if (!s->mbskip_table)
314 goto fail;
ba6802de 315
91029be7 316 s->block= s->blocks[0];
3bb4e23a 317
de6d9b64
FB
318 s->context_initialized = 1;
319 return 0;
320 fail:
8257bf05 321 MPV_common_end(s);
de6d9b64
FB
322 return -1;
323}
324
325/* init common structure for both encoder and decoder */
326void MPV_common_end(MpegEncContext *s)
327{
328 int i;
329
6000abfa
FB
330 av_freep(&s->mb_type);
331 av_freep(&s->mb_var);
332 av_freep(&s->p_mv_table);
333 av_freep(&s->last_p_mv_table);
334 av_freep(&s->b_forw_mv_table);
335 av_freep(&s->b_back_mv_table);
336 av_freep(&s->b_bidir_forw_mv_table);
337 av_freep(&s->b_bidir_back_mv_table);
338 av_freep(&s->b_direct_forw_mv_table);
339 av_freep(&s->b_direct_back_mv_table);
340 av_freep(&s->b_direct_mv_table);
341 av_freep(&s->motion_val);
342 av_freep(&s->dc_val[0]);
343 av_freep(&s->ac_val[0]);
344 av_freep(&s->coded_block);
345 av_freep(&s->mbintra_table);
346 av_freep(&s->me_scratchpad);
347
348 av_freep(&s->mbskip_table);
349 av_freep(&s->bitstream_buffer);
de6d9b64 350 for(i=0;i<3;i++) {
9dbcbd92 351 int j;
6000abfa
FB
352 av_freep(&s->last_picture_base[i]);
353 av_freep(&s->next_picture_base[i]);
354 av_freep(&s->aux_picture_base[i]);
9dbcbd92 355 for(j=0; j<REORDER_BUFFER_SIZE; j++){
6000abfa 356 av_freep(&s->picture_buffer[j][i]);
9dbcbd92 357 }
de6d9b64
FB
358 }
359 s->context_initialized = 0;
360}
361
362/* init video encoder */
363int MPV_encode_init(AVCodecContext *avctx)
364{
365 MpegEncContext *s = avctx->priv_data;
519c2b6d 366 int i;
de6d9b64 367
bc657ac3
ZK
368 avctx->pix_fmt = PIX_FMT_YUV420P;
369
de6d9b64 370 s->bit_rate = avctx->bit_rate;
9cdd6a24 371 s->bit_rate_tolerance = avctx->bit_rate_tolerance;
de6d9b64
FB
372 s->frame_rate = avctx->frame_rate;
373 s->width = avctx->width;
374 s->height = avctx->height;
375 s->gop_size = avctx->gop_size;
644d98a4
J
376 s->rtp_mode = avctx->rtp_mode;
377 s->rtp_payload_size = avctx->rtp_payload_size;
81401c1f
J
378 if (avctx->rtp_callback)
379 s->rtp_callback = avctx->rtp_callback;
9cdd6a24
MN
380 s->qmin= avctx->qmin;
381 s->qmax= avctx->qmax;
382 s->max_qdiff= avctx->max_qdiff;
383 s->qcompress= avctx->qcompress;
384 s->qblur= avctx->qblur;
8b4c7dbc 385 s->b_quant_factor= avctx->b_quant_factor;
477c35a9 386 s->avctx = avctx;
11ce8834 387 s->aspect_ratio_info= avctx->aspect_ratio_info;
ba6802de 388 s->flags= avctx->flags;
9dbcbd92 389 s->max_b_frames= avctx->max_b_frames;
8b4c7dbc
MN
390 s->rc_strategy= avctx->rc_strategy;
391 s->b_frame_strategy= avctx->b_frame_strategy;
d7e9533a
MN
392 s->codec_id= avctx->codec->id;
393
de6d9b64
FB
394 if (s->gop_size <= 1) {
395 s->intra_only = 1;
396 s->gop_size = 12;
397 } else {
398 s->intra_only = 0;
399 }
e4986da9
J
400
401 /* ME algorithm */
101bea5f
J
402 if (avctx->me_method == 0)
403 /* For compatibility */
404 s->me_method = motion_estimation_method;
405 else
406 s->me_method = avctx->me_method;
407
e4986da9 408 /* Fixed QSCALE */
de6d9b64 409 s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);
37fbfd0a 410
de6d9b64
FB
411 switch(avctx->codec->id) {
412 case CODEC_ID_MPEG1VIDEO:
413 s->out_format = FMT_MPEG1;
1ff662cc 414 avctx->delay=0; //FIXME not sure, should check the spec
de6d9b64
FB
415 break;
416 case CODEC_ID_MJPEG:
417 s->out_format = FMT_MJPEG;
418 s->intra_only = 1; /* force intra only for jpeg */
37fbfd0a 419 s->mjpeg_write_tables = 1; /* write all tables */
a69b930c 420 s->mjpeg_data_only_frames = 0; /* write all the needed headers */
37fbfd0a
J
421 s->mjpeg_vsample[0] = 2; /* set up default sampling factors */
422 s->mjpeg_vsample[1] = 1; /* the only currently supported values */
423 s->mjpeg_vsample[2] = 1;
a69b930c 424 s->mjpeg_hsample[0] = 2;
37fbfd0a
J
425 s->mjpeg_hsample[1] = 1;
426 s->mjpeg_hsample[2] = 1;
de6d9b64
FB
427 if (mjpeg_init(s) < 0)
428 return -1;
1ff662cc 429 avctx->delay=0;
de6d9b64
FB
430 break;
431 case CODEC_ID_H263:
37fbfd0a
J
432 if (h263_get_picture_format(s->width, s->height) == 7) {
433 printf("Input picture size isn't suitable for h263 codec! try h263+\n");
de6d9b64 434 return -1;
37fbfd0a 435 }
de6d9b64 436 s->out_format = FMT_H263;
1ff662cc 437 avctx->delay=0;
de6d9b64
FB
438 break;
439 case CODEC_ID_H263P:
440 s->out_format = FMT_H263;
644d98a4
J
441 s->rtp_mode = 1;
442 s->rtp_payload_size = 1200;
de6d9b64 443 s->h263_plus = 1;
6dbd39fe 444 s->unrestricted_mv = 1;
ef5b1b5a 445 s->h263_aic = 1;
544286b3
J
446
447 /* These are just to be sure */
448 s->umvplus = 0;
449 s->umvplus_dec = 0;
1ff662cc 450 avctx->delay=0;
de6d9b64
FB
451 break;
452 case CODEC_ID_RV10:
453 s->out_format = FMT_H263;
454 s->h263_rv10 = 1;
1ff662cc 455 avctx->delay=0;
de6d9b64 456 break;
58f26ba9 457 case CODEC_ID_MPEG4:
de6d9b64
FB
458 s->out_format = FMT_H263;
459 s->h263_pred = 1;
460 s->unrestricted_mv = 1;
9dbcbd92 461 s->has_b_frames= s->max_b_frames ? 1 : 0;
1ff662cc
MN
462 s->low_delay=0;
463 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
de6d9b64 464 break;
84afee34 465 case CODEC_ID_MSMPEG4V1:
de6d9b64
FB
466 s->out_format = FMT_H263;
467 s->h263_msmpeg4 = 1;
468 s->h263_pred = 1;
469 s->unrestricted_mv = 1;
84afee34 470 s->msmpeg4_version= 1;
1ff662cc 471 avctx->delay=0;
84afee34
MN
472 break;
473 case CODEC_ID_MSMPEG4V2:
474 s->out_format = FMT_H263;
475 s->h263_msmpeg4 = 1;
476 s->h263_pred = 1;
477 s->unrestricted_mv = 1;
478 s->msmpeg4_version= 2;
1ff662cc 479 avctx->delay=0;
84afee34
MN
480 break;
481 case CODEC_ID_MSMPEG4V3:
482 s->out_format = FMT_H263;
483 s->h263_msmpeg4 = 1;
484 s->h263_pred = 1;
485 s->unrestricted_mv = 1;
486 s->msmpeg4_version= 3;
1ff662cc 487 avctx->delay=0;
de6d9b64
FB
488 break;
489 default:
490 return -1;
491 }
cf8039b2
MN
492
493 if((s->flags&CODEC_FLAG_4MV) && !(s->flags&CODEC_FLAG_HQ)){
494 printf("4MV is currently only supported in HQ mode\n");
495 return -1;
496 }
de6d9b64 497
45870f57
MN
498 { /* set up some save defaults, some codecs might override them later */
499 static int done=0;
500 if(!done){
501 int i;
502 done=1;
9c15096e 503 memset(default_mv_penalty, 0, sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1));
45870f57
MN
504 memset(default_fcode_tab , 0, sizeof(UINT8)*(2*MAX_MV+1));
505
506 for(i=-16; i<16; i++){
507 default_fcode_tab[i + MAX_MV]= 1;
508 }
509 }
510 }
511 s->mv_penalty= default_mv_penalty;
512 s->fcode_tab= default_fcode_tab;
513
de6d9b64 514 if (s->out_format == FMT_H263)
45870f57 515 h263_encode_init(s);
11ce8834
MN
516 else if (s->out_format == FMT_MPEG1)
517 mpeg1_encode_init(s);
de6d9b64 518
9d2a0355 519 /* dont use mv_penalty table for crap MV as it would be confused */
9dbcbd92 520 if (s->me_method < ME_EPZS) s->mv_penalty = default_mv_penalty;
9d2a0355 521
3bb4e23a
FB
522 s->encoding = 1;
523
de6d9b64
FB
524 /* init */
525 if (MPV_common_init(s) < 0)
526 return -1;
527
519c2b6d
FB
528 /* init default q matrix */
529 for(i=0;i<64;i++) {
d7e9533a
MN
530 if(s->out_format == FMT_H263)
531 s->intra_matrix[i] = default_non_intra_matrix[i];
532 else
533 s->intra_matrix[i] = default_intra_matrix[i];
534
535 s->inter_matrix[i] = default_non_intra_matrix[i];
536 }
537
538 /* precompute matrix */
ef5b1b5a 539 /* for mjpeg, we do include qscale in the matrix */
d7e9533a
MN
540 if (s->out_format != FMT_MJPEG) {
541 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, s->q_intra_matrix16_bias,
542 s->intra_matrix, s->intra_quant_bias);
543 convert_matrix(s->q_inter_matrix, s->q_inter_matrix16, s->q_inter_matrix16_bias,
544 s->inter_matrix, s->inter_quant_bias);
519c2b6d
FB
545 }
546
8b4c7dbc
MN
547 if(ff_rate_control_init(s) < 0)
548 return -1;
de6d9b64
FB
549
550 s->picture_number = 0;
45870f57 551 s->picture_in_gop_number = 0;
de6d9b64
FB
552 s->fake_picture_number = 0;
553 /* motion detector init */
554 s->f_code = 1;
9dbcbd92 555 s->b_code = 1;
de6d9b64
FB
556
557 return 0;
558}
559
560int MPV_encode_end(AVCodecContext *avctx)
561{
562 MpegEncContext *s = avctx->priv_data;
563
564#ifdef STATS
565 print_stats();
566#endif
8b4c7dbc
MN
567
568 ff_rate_control_uninit(s);
569
de6d9b64
FB
570 MPV_common_end(s);
571 if (s->out_format == FMT_MJPEG)
572 mjpeg_close(s);
37fbfd0a 573
de6d9b64
FB
574 return 0;
575}
576
577/* draw the edges of width 'w' of an image of size width, height */
3d9fccbf 578static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
de6d9b64
FB
579{
580 UINT8 *ptr, *last_line;
581 int i;
582
583 last_line = buf + (height - 1) * wrap;
584 for(i=0;i<w;i++) {
585 /* top and bottom */
586 memcpy(buf - (i + 1) * wrap, buf, width);
587 memcpy(last_line + (i + 1) * wrap, last_line, width);
588 }
589 /* left and right */
590 ptr = buf;
591 for(i=0;i<height;i++) {
592 memset(ptr - w, ptr[0], w);
593 memset(ptr + width, ptr[width-1], w);
594 ptr += wrap;
595 }
596 /* corners */
597 for(i=0;i<w;i++) {
598 memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
599 memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
600 memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
601 memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
602 }
603}
604
de6d9b64
FB
605/* generic function for encode/decode called before a frame is coded/decoded */
606void MPV_frame_start(MpegEncContext *s)
607{
608 int i;
609 UINT8 *tmp;
610
425dddb7 611 s->mb_skiped = 0;
de6d9b64
FB
612 if (s->pict_type == B_TYPE) {
613 for(i=0;i<3;i++) {
614 s->current_picture[i] = s->aux_picture[i];
615 }
616 } else {
617 for(i=0;i<3;i++) {
618 /* swap next and last */
619 tmp = s->last_picture[i];
620 s->last_picture[i] = s->next_picture[i];
621 s->next_picture[i] = tmp;
622 s->current_picture[i] = tmp;
623 }
624 }
625}
21af69f7 626
de6d9b64
FB
627/* generic function for encode/decode called after a frame has been coded/decoded */
628void MPV_frame_end(MpegEncContext *s)
629{
630 /* draw edge for correct motion prediction if outside */
2f349de2 631 if (s->pict_type != B_TYPE && !s->intra_only) {
1699d376 632 if(s->avctx==NULL || s->avctx->codec->id!=CODEC_ID_MPEG4 || s->divx_version==500){
393fe8dd
A
633 draw_edges(s->current_picture[0], s->linesize, s->mb_width*16, s->mb_height*16, EDGE_WIDTH);
634 draw_edges(s->current_picture[1], s->linesize/2, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
635 draw_edges(s->current_picture[2], s->linesize/2, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
ef093645 636 }else{
1699d376 637 /* mpeg4? / opendivx / xvid */
de6d9b64
FB
638 draw_edges(s->current_picture[0], s->linesize, s->width, s->height, EDGE_WIDTH);
639 draw_edges(s->current_picture[1], s->linesize/2, s->width/2, s->height/2, EDGE_WIDTH/2);
640 draw_edges(s->current_picture[2], s->linesize/2, s->width/2, s->height/2, EDGE_WIDTH/2);
ef093645 641 }
de6d9b64 642 }
5975626d 643 emms_c();
8b4c7dbc
MN
644
645 if(s->pict_type!=B_TYPE){
646 s->last_non_b_pict_type= s->pict_type;
647 s->last_non_b_qscale= s->qscale;
648 s->last_non_b_mc_mb_var= s->mc_mb_var;
1c2a8c7f
MN
649 s->num_available_buffers++;
650 if(s->num_available_buffers>2) s->num_available_buffers= 2;
8b4c7dbc 651 }
de6d9b64
FB
652}
653
9dbcbd92
MN
654/* reorder input for encoding */
655void reorder_input(MpegEncContext *s, AVPicture *pict)
656{
657 int i, j, index;
658
659 if(s->max_b_frames > FF_MAX_B_FRAMES) s->max_b_frames= FF_MAX_B_FRAMES;
660
661// delay= s->max_b_frames+1; (or 0 if no b frames cuz decoder diff)
662
663 for(j=0; j<REORDER_BUFFER_SIZE-1; j++){
664 s->coded_order[j]= s->coded_order[j+1];
665 }
666 s->coded_order[j].picture[0]= s->coded_order[j].picture[1]= s->coded_order[j].picture[2]= NULL; //catch uninitalized buffers
d697b89b 667 s->coded_order[j].pict_type=0;
9dbcbd92
MN
668
669 switch(s->input_pict_type){
670 default:
671 case I_TYPE:
672 case S_TYPE:
673 case P_TYPE:
674 index= s->max_b_frames - s->b_frames_since_non_b;
675 s->b_frames_since_non_b=0;
676 break;
677 case B_TYPE:
678 index= s->max_b_frames + 1;
679 s->b_frames_since_non_b++;
680 break;
681 }
682//printf("index:%d type:%d strides: %d %d\n", index, s->input_pict_type, pict->linesize[0], s->linesize);
683 if( (index==0 || (s->flags&CODEC_FLAG_INPUT_PRESERVED))
684 && pict->linesize[0] == s->linesize
685 && pict->linesize[1] == s->linesize>>1
686 && pict->linesize[2] == s->linesize>>1){
687//printf("ptr\n");
688 for(i=0; i<3; i++){
689 s->coded_order[index].picture[i]= pict->data[i];
690 }
691 }else{
692//printf("copy\n");
693 for(i=0; i<3; i++){
694 uint8_t *src = pict->data[i];
695 uint8_t *dest;
696 int src_wrap = pict->linesize[i];
697 int dest_wrap = s->linesize;
698 int w = s->width;
699 int h = s->height;
700
701 if(index==0) dest= s->last_picture[i]+16; //is current_picture indeed but the switch hapens after reordering
702 else dest= s->picture_buffer[s->picture_buffer_index][i];
703
704 if (i >= 1) {
705 dest_wrap >>= 1;
706 w >>= 1;
707 h >>= 1;
708 }
709
710 s->coded_order[index].picture[i]= dest;
711 for(j=0;j<h;j++) {
712 memcpy(dest, src, w);
713 dest += dest_wrap;
714 src += src_wrap;
715 }
716 }
717 if(index!=0){
718 s->picture_buffer_index++;
719 if(s->picture_buffer_index >= REORDER_BUFFER_SIZE-1) s->picture_buffer_index=0;
720 }
721 }
722 s->coded_order[index].pict_type = s->input_pict_type;
723 s->coded_order[index].qscale = s->input_qscale;
724 s->coded_order[index].force_type= s->force_input_type;
725 s->coded_order[index].picture_in_gop_number= s->input_picture_in_gop_number;
726 s->coded_order[index].picture_number= s->input_picture_number;
727
728 for(i=0; i<3; i++){
729 s->new_picture[i]= s->coded_order[0].picture[i];
730 }
731}
732
de6d9b64
FB
733int MPV_encode_picture(AVCodecContext *avctx,
734 unsigned char *buf, int buf_size, void *data)
735{
736 MpegEncContext *s = avctx->priv_data;
737 AVPicture *pict = data;
de6d9b64 738
9dbcbd92 739 s->input_qscale = avctx->quality;
de6d9b64
FB
740
741 init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
742
8b4c7dbc
MN
743 if(avctx->flags&CODEC_FLAG_TYPE){
744 s->input_pict_type=
745 s->force_input_type= avctx->key_frame ? I_TYPE : P_TYPE;
746 }else if(s->flags&CODEC_FLAG_PASS2){
747 s->input_pict_type=
748 s->force_input_type= s->rc_context.entry[s->input_picture_number].new_pict_type;
749 }else{
750 s->force_input_type=0;
751 if (!s->intra_only) {
752 /* first picture of GOP is intra */
753 if (s->input_picture_in_gop_number % s->gop_size==0){
754 s->input_pict_type = I_TYPE;
755 }else if(s->max_b_frames==0){
9dbcbd92 756 s->input_pict_type = P_TYPE;
8b4c7dbc
MN
757 }else{
758 if(s->b_frames_since_non_b < s->max_b_frames) //FIXME more IQ
759 s->input_pict_type = B_TYPE;
760 else
761 s->input_pict_type = P_TYPE;
762 }
763 } else {
764 s->input_pict_type = I_TYPE;
9dbcbd92 765 }
de6d9b64 766 }
de6d9b64 767
8b4c7dbc
MN
768 if(s->input_pict_type==I_TYPE)
769 s->input_picture_in_gop_number=0;
770
9dbcbd92
MN
771 reorder_input(s, pict);
772
773 /* output? */
774 if(s->coded_order[0].picture[0]){
775
776 s->pict_type= s->coded_order[0].pict_type;
777 if (s->fixed_qscale) /* the ratecontrol needs the last qscale so we dont touch it for CBR */
778 s->qscale= s->coded_order[0].qscale;
779 s->force_type= s->coded_order[0].force_type;
780 s->picture_in_gop_number= s->coded_order[0].picture_in_gop_number;
781 s->picture_number= s->coded_order[0].picture_number;
782
783 MPV_frame_start(s);
784
785 encode_picture(s, s->picture_number);
9cd3766f
J
786 avctx->key_frame = (s->pict_type == I_TYPE);
787 avctx->pict_type = s->pict_type;
788 avctx->real_pict_num = s->picture_number;
9dbcbd92
MN
789 avctx->header_bits = s->header_bits;
790 avctx->mv_bits = s->mv_bits;
791 avctx->misc_bits = s->misc_bits;
792 avctx->i_tex_bits = s->i_tex_bits;
793 avctx->p_tex_bits = s->p_tex_bits;
794 avctx->i_count = s->i_count;
795 avctx->p_count = s->p_count;
796 avctx->skip_count = s->skip_count;
797
798 MPV_frame_end(s);
799
800 if (s->out_format == FMT_MJPEG)
801 mjpeg_picture_trailer(s);
802
803 avctx->quality = s->qscale;
8b4c7dbc
MN
804
805 if(s->flags&CODEC_FLAG_PASS1)
806 ff_write_pass1_stats(s);
de6d9b64
FB
807 }
808
9dbcbd92
MN
809 s->input_picture_number++;
810 s->input_picture_in_gop_number++;
de6d9b64
FB
811
812 flush_put_bits(&s->pb);
9cdd6a24 813 s->frame_bits = (pbBufPtr(&s->pb) - s->pb.buf) * 8;
8b4c7dbc
MN
814 if(s->pict_type==B_TYPE) s->pb_frame_bits+= s->frame_bits;
815 else s->pb_frame_bits= s->frame_bits;
816
9cdd6a24 817 s->total_bits += s->frame_bits;
098eefe1
MN
818 avctx->frame_bits = s->frame_bits;
819//printf("fcode: %d, type: %d, head: %d, mv: %d, misc: %d, frame: %d, itex: %d, ptex: %d\n",
820//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 821
43f1708f
J
822 if (avctx->get_psnr) {
823 /* At this point pict->data should have the original frame */
824 /* an s->current_picture should have the coded/decoded frame */
825 get_psnr(pict->data, s->current_picture,
826 pict->linesize, s->linesize, avctx);
9dbcbd92 827// printf("%f\n", avctx->psnr_y);
43f1708f 828 }
17592475 829 return pbBufPtr(&s->pb) - s->pb.buf;
de6d9b64
FB
830}
831
44eb4951
MN
832static inline void gmc1_motion(MpegEncContext *s,
833 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
834 int dest_offset,
835 UINT8 **ref_picture, int src_offset,
836 int h)
837{
838 UINT8 *ptr;
9dbcbd92 839 int offset, src_x, src_y, linesize;
44eb4951
MN
840 int motion_x, motion_y;
841
d6231b9e 842 if(s->real_sprite_warping_points>1) printf("more than 1 warp point isnt supported\n");
44eb4951
MN
843 motion_x= s->sprite_offset[0][0];
844 motion_y= s->sprite_offset[0][1];
845 src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
846 src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
847 motion_x<<=(3-s->sprite_warping_accuracy);
848 motion_y<<=(3-s->sprite_warping_accuracy);
849 src_x = clip(src_x, -16, s->width);
850 if (src_x == s->width)
851 motion_x =0;
852 src_y = clip(src_y, -16, s->height);
853 if (src_y == s->height)
854 motion_y =0;
855
856 linesize = s->linesize;
857 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
858
859 dest_y+=dest_offset;
860 gmc1(dest_y , ptr , linesize, h, motion_x&15, motion_y&15, s->no_rounding);
861 gmc1(dest_y+8, ptr+8, linesize, h, motion_x&15, motion_y&15, s->no_rounding);
862
863 motion_x= s->sprite_offset[1][0];
864 motion_y= s->sprite_offset[1][1];
865 src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
866 src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
867 motion_x<<=(3-s->sprite_warping_accuracy);
868 motion_y<<=(3-s->sprite_warping_accuracy);
869 src_x = clip(src_x, -8, s->width>>1);
870 if (src_x == s->width>>1)
871 motion_x =0;
872 src_y = clip(src_y, -8, s->height>>1);
873 if (src_y == s->height>>1)
874 motion_y =0;
875
876 offset = (src_y * linesize>>1) + src_x + (src_offset>>1);
877 ptr = ref_picture[1] + offset;
878 gmc1(dest_cb + (dest_offset>>1), ptr, linesize>>1, h>>1, motion_x&15, motion_y&15, s->no_rounding);
879 ptr = ref_picture[2] + offset;
880 gmc1(dest_cr + (dest_offset>>1), ptr, linesize>>1, h>>1, motion_x&15, motion_y&15, s->no_rounding);
881
882 return;
883}
884
de6d9b64
FB
885/* apply one mpeg motion vector to the three components */
886static inline void mpeg_motion(MpegEncContext *s,
887 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
888 int dest_offset,
889 UINT8 **ref_picture, int src_offset,
890 int field_based, op_pixels_func *pix_op,
891 int motion_x, int motion_y, int h)
892{
893 UINT8 *ptr;
894 int dxy, offset, mx, my, src_x, src_y, height, linesize;
44eb4951
MN
895if(s->quarter_sample)
896{
897 motion_x>>=1;
898 motion_y>>=1;
899}
9dbcbd92 900
de6d9b64
FB
901 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
902 src_x = s->mb_x * 16 + (motion_x >> 1);
903 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
904
905 /* WARNING: do no forget half pels */
906 height = s->height >> field_based;
907 src_x = clip(src_x, -16, s->width);
908 if (src_x == s->width)
909 dxy &= ~1;
910 src_y = clip(src_y, -16, height);
911 if (src_y == height)
912 dxy &= ~2;
913 linesize = s->linesize << field_based;
914 ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
915 dest_y += dest_offset;
916 pix_op[dxy](dest_y, ptr, linesize, h);
917 pix_op[dxy](dest_y + 8, ptr + 8, linesize, h);
918
919 if (s->out_format == FMT_H263) {
920 dxy = 0;
921 if ((motion_x & 3) != 0)
922 dxy |= 1;
923 if ((motion_y & 3) != 0)
924 dxy |= 2;
925 mx = motion_x >> 2;
926 my = motion_y >> 2;
927 } else {
928 mx = motion_x / 2;
929 my = motion_y / 2;
930 dxy = ((my & 1) << 1) | (mx & 1);
931 mx >>= 1;
932 my >>= 1;
933 }
934
935 src_x = s->mb_x * 8 + mx;
936 src_y = s->mb_y * (8 >> field_based) + my;
937 src_x = clip(src_x, -8, s->width >> 1);
938 if (src_x == (s->width >> 1))
939 dxy &= ~1;
940 src_y = clip(src_y, -8, height >> 1);
941 if (src_y == (height >> 1))
942 dxy &= ~2;
943
944 offset = (src_y * (linesize >> 1)) + src_x + (src_offset >> 1);
945 ptr = ref_picture[1] + offset;
946 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
947 ptr = ref_picture[2] + offset;
948 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
949}
950
44eb4951
MN
951static inline void qpel_motion(MpegEncContext *s,
952 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
953 int dest_offset,
954 UINT8 **ref_picture, int src_offset,
955 int field_based, op_pixels_func *pix_op,
956 qpel_mc_func *qpix_op,
957 int motion_x, int motion_y, int h)
958{
959 UINT8 *ptr;
960 int dxy, offset, mx, my, src_x, src_y, height, linesize;
961
962 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
963 src_x = s->mb_x * 16 + (motion_x >> 2);
964 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
965
966 height = s->height >> field_based;
967 src_x = clip(src_x, -16, s->width);
968 if (src_x == s->width)
969 dxy &= ~3;
970 src_y = clip(src_y, -16, height);
971 if (src_y == height)
972 dxy &= ~12;
973 linesize = s->linesize << field_based;
974 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
975 dest_y += dest_offset;
976//printf("%d %d %d\n", src_x, src_y, dxy);
977 qpix_op[dxy](dest_y , ptr , linesize, linesize, motion_x&3, motion_y&3);
978 qpix_op[dxy](dest_y + 8, ptr + 8, linesize, linesize, motion_x&3, motion_y&3);
979 qpix_op[dxy](dest_y + linesize*8 , ptr + linesize*8 , linesize, linesize, motion_x&3, motion_y&3);
980 qpix_op[dxy](dest_y + linesize*8 + 8, ptr + linesize*8 + 8, linesize, linesize, motion_x&3, motion_y&3);
981
982 mx= (motion_x>>1) | (motion_x&1);
983 my= (motion_y>>1) | (motion_y&1);
984
985 dxy = 0;
986 if ((mx & 3) != 0)
987 dxy |= 1;
988 if ((my & 3) != 0)
989 dxy |= 2;
990 mx = mx >> 2;
991 my = my >> 2;
992
993 src_x = s->mb_x * 8 + mx;
994 src_y = s->mb_y * (8 >> field_based) + my;
995 src_x = clip(src_x, -8, s->width >> 1);
996 if (src_x == (s->width >> 1))
997 dxy &= ~1;
998 src_y = clip(src_y, -8, height >> 1);
999 if (src_y == (height >> 1))
1000 dxy &= ~2;
1001
1002 offset = (src_y * (linesize >> 1)) + src_x + (src_offset >> 1);
1003 ptr = ref_picture[1] + offset;
1004 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
1005 ptr = ref_picture[2] + offset;
1006 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
1007}
1008
1009
de6d9b64
FB
1010static inline void MPV_motion(MpegEncContext *s,
1011 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1012 int dir, UINT8 **ref_picture,
44eb4951 1013 op_pixels_func *pix_op, qpel_mc_func *qpix_op)
de6d9b64
FB
1014{
1015 int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
1016 int mb_x, mb_y, i;
1017 UINT8 *ptr, *dest;
1018
1019 mb_x = s->mb_x;
1020 mb_y = s->mb_y;
1021
1022 switch(s->mv_type) {
1023 case MV_TYPE_16X16:
44eb4951
MN
1024 if(s->mcsel){
1025#if 0
1026 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1027 ref_picture, 0,
1028 0, pix_op,
1029 s->sprite_offset[0][0]>>3,
1030 s->sprite_offset[0][1]>>3,
1031 16);
1032#else
1033 gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
1034 ref_picture, 0,
1035 16);
1036#endif
6f91bcd1 1037 }else if(s->quarter_sample && dir==0){ //FIXME
44eb4951
MN
1038 qpel_motion(s, dest_y, dest_cb, dest_cr, 0,
1039 ref_picture, 0,
1040 0, pix_op, qpix_op,
1041 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1042 }else{
1043 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1044 ref_picture, 0,
1045 0, pix_op,
1046 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1047 }
de6d9b64
FB
1048 break;
1049 case MV_TYPE_8X8:
1050 for(i=0;i<4;i++) {
1051 motion_x = s->mv[dir][i][0];
1052 motion_y = s->mv[dir][i][1];
1053
1054 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1055 src_x = mb_x * 16 + (motion_x >> 1) + (i & 1) * 8;
cf8039b2 1056 src_y = mb_y * 16 + (motion_y >> 1) + (i >>1) * 8;
de6d9b64
FB
1057
1058 /* WARNING: do no forget half pels */
1059 src_x = clip(src_x, -16, s->width);
1060 if (src_x == s->width)
1061 dxy &= ~1;
1062 src_y = clip(src_y, -16, s->height);
1063 if (src_y == s->height)
1064 dxy &= ~2;
1065
1066 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
1067 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
1068 pix_op[dxy](dest, ptr, s->linesize, 8);
1069 }
1070 /* In case of 8X8, we construct a single chroma motion vector
1071 with a special rounding */
1072 mx = 0;
1073 my = 0;
1074 for(i=0;i<4;i++) {
1075 mx += s->mv[dir][i][0];
1076 my += s->mv[dir][i][1];
1077 }
1078 if (mx >= 0)
1079 mx = (h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1080 else {
1081 mx = -mx;
1082 mx = -(h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1083 }
1084 if (my >= 0)
1085 my = (h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1086 else {
1087 my = -my;
1088 my = -(h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1089 }
1090 dxy = ((my & 1) << 1) | (mx & 1);
1091 mx >>= 1;
1092 my >>= 1;
1093
1094 src_x = mb_x * 8 + mx;
1095 src_y = mb_y * 8 + my;
1096 src_x = clip(src_x, -8, s->width/2);
1097 if (src_x == s->width/2)
1098 dxy &= ~1;
1099 src_y = clip(src_y, -8, s->height/2);
1100 if (src_y == s->height/2)
1101 dxy &= ~2;
1102
1103 offset = (src_y * (s->linesize >> 1)) + src_x;
1104 ptr = ref_picture[1] + offset;
1105 pix_op[dxy](dest_cb, ptr, s->linesize >> 1, 8);
1106 ptr = ref_picture[2] + offset;
1107 pix_op[dxy](dest_cr, ptr, s->linesize >> 1, 8);
1108 break;
1109 case MV_TYPE_FIELD:
1110 if (s->picture_structure == PICT_FRAME) {
1111 /* top field */
1112 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1113 ref_picture, s->field_select[dir][0] ? s->linesize : 0,
1114 1, pix_op,
1115 s->mv[dir][0][0], s->mv[dir][0][1], 8);
1116 /* bottom field */
1117 mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
1118 ref_picture, s->field_select[dir][1] ? s->linesize : 0,
1119 1, pix_op,
1120 s->mv[dir][1][0], s->mv[dir][1][1], 8);
1121 } else {
1122
1123
1124 }
1125 break;
1126 }
1127}
1128
1129
1130/* put block[] to dest[] */
1131static inline void put_dct(MpegEncContext *s,
1132 DCTELEM *block, int i, UINT8 *dest, int line_size)
1133{
1134 if (!s->mpeg2)
21af69f7 1135 s->dct_unquantize(s, block, i, s->qscale);
4af7bcc1 1136 ff_idct (block);
de6d9b64
FB
1137 put_pixels_clamped(block, dest, line_size);
1138}
1139
1140/* add block[] to dest[] */
1141static inline void add_dct(MpegEncContext *s,
1142 DCTELEM *block, int i, UINT8 *dest, int line_size)
1143{
2417652e
MN
1144 /* skip dequant / idct if we are really late ;) */
1145 if(s->hurry_up>1) return;
1146
de6d9b64
FB
1147 if (s->block_last_index[i] >= 0) {
1148 if (!s->mpeg2)
3d9fccbf 1149 if(s->encoding || (!s->h263_msmpeg4))
badaf88e 1150 s->dct_unquantize(s, block, i, s->qscale);
9dbcbd92 1151
4af7bcc1 1152 ff_idct (block);
de6d9b64
FB
1153 add_pixels_clamped(block, dest, line_size);
1154 }
1155}
1156
1157/* generic function called after a macroblock has been parsed by the
1158 decoder or after it has been encoded by the encoder.
1159
1160 Important variables used:
1161 s->mb_intra : true if intra macroblock
1162 s->mv_dir : motion vector direction
1163 s->mv_type : motion vector type
1164 s->mv : motion vector
1165 s->interlaced_dct : true if interlaced dct used (mpeg2)
1166 */
1167void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
1168{
8257bf05 1169 int mb_x, mb_y;
de6d9b64
FB
1170 int dct_linesize, dct_offset;
1171 op_pixels_func *op_pix;
44eb4951 1172 qpel_mc_func *op_qpix;
de6d9b64
FB
1173
1174 mb_x = s->mb_x;
1175 mb_y = s->mb_y;
1176
79e7b305
A
1177#ifdef FF_POSTPROCESS
1178 quant_store[mb_y][mb_x]=s->qscale;
1179 //printf("[%02d][%02d] %d\n",mb_x,mb_y,s->qscale);
1180#endif
1181
de6d9b64
FB
1182 /* update DC predictors for P macroblocks */
1183 if (!s->mb_intra) {
9e15ad28 1184 if (s->h263_pred || s->h263_aic) {
bff6ecaa
MN
1185 if(s->mbintra_table[mb_x + mb_y*s->mb_width])
1186 {
8257bf05 1187 int wrap, xy, v;
bff6ecaa 1188 s->mbintra_table[mb_x + mb_y*s->mb_width]=0;
de6d9b64 1189 wrap = 2 * s->mb_width + 2;
8257bf05 1190 xy = 2 * mb_x + 1 + (2 * mb_y + 1) * wrap;
de6d9b64 1191 v = 1024;
bff6ecaa 1192
9e15ad28 1193 s->dc_val[0][xy] = v;
8257bf05
ZK
1194 s->dc_val[0][xy + 1] = v;
1195 s->dc_val[0][xy + wrap] = v;
1196 s->dc_val[0][xy + 1 + wrap] = v;
de6d9b64 1197 /* ac pred */
8257bf05
ZK
1198 memset(s->ac_val[0][xy], 0, 16 * sizeof(INT16));
1199 memset(s->ac_val[0][xy + 1], 0, 16 * sizeof(INT16));
1200 memset(s->ac_val[0][xy + wrap], 0, 16 * sizeof(INT16));
1201 memset(s->ac_val[0][xy + 1 + wrap], 0, 16 * sizeof(INT16));
de6d9b64 1202 if (s->h263_msmpeg4) {
8257bf05
ZK
1203 s->coded_block[xy] = 0;
1204 s->coded_block[xy + 1] = 0;
1205 s->coded_block[xy + wrap] = 0;
1206 s->coded_block[xy + 1 + wrap] = 0;
de6d9b64
FB
1207 }
1208 /* chroma */
1209 wrap = s->mb_width + 2;
8257bf05
ZK
1210 xy = mb_x + 1 + (mb_y + 1) * wrap;
1211 s->dc_val[1][xy] = v;
1212 s->dc_val[2][xy] = v;
de6d9b64 1213 /* ac pred */
8257bf05
ZK
1214 memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
1215 memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
bff6ecaa 1216 }
de6d9b64
FB
1217 } else {
1218 s->last_dc[0] = 128 << s->intra_dc_precision;
1219 s->last_dc[1] = 128 << s->intra_dc_precision;
1220 s->last_dc[2] = 128 << s->intra_dc_precision;
1221 }
1222 }
9e15ad28 1223 else if (s->h263_pred || s->h263_aic)
bff6ecaa
MN
1224 s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
1225
c5b1c10a 1226 /* update motion predictor, not for B-frames as they need the motion_val from the last P/S-Frame */
9dbcbd92 1227 if (s->out_format == FMT_H263) { //FIXME move into h263.c if possible, format specific stuff shouldnt be here
6f91bcd1 1228 if(s->pict_type!=B_TYPE){
8257bf05 1229 int xy, wrap, motion_x, motion_y;
de6d9b64 1230
de6d9b64 1231 wrap = 2 * s->mb_width + 2;
8257bf05 1232 xy = 2 * mb_x + 1 + (2 * mb_y + 1) * wrap;
de6d9b64
FB
1233 if (s->mb_intra) {
1234 motion_x = 0;
1235 motion_y = 0;
1236 goto motion_init;
1237 } else if (s->mv_type == MV_TYPE_16X16) {
1238 motion_x = s->mv[0][0][0];
1239 motion_y = s->mv[0][0][1];
1240 motion_init:
1241 /* no update if 8X8 because it has been done during parsing */
8257bf05
ZK
1242 s->motion_val[xy][0] = motion_x;
1243 s->motion_val[xy][1] = motion_y;
1244 s->motion_val[xy + 1][0] = motion_x;
1245 s->motion_val[xy + 1][1] = motion_y;
1246 s->motion_val[xy + wrap][0] = motion_x;
1247 s->motion_val[xy + wrap][1] = motion_y;
1248 s->motion_val[xy + 1 + wrap][0] = motion_x;
1249 s->motion_val[xy + 1 + wrap][1] = motion_y;
de6d9b64 1250 }
6f91bcd1 1251 }
de6d9b64
FB
1252 }
1253
9dbcbd92 1254 if (!(s->encoding && (s->intra_only || s->pict_type==B_TYPE))) {
de6d9b64 1255 UINT8 *dest_y, *dest_cb, *dest_cr;
3bb4e23a
FB
1256 UINT8 *mbskip_ptr;
1257
9dbcbd92
MN
1258 /* avoid copy if macroblock skipped in last frame too
1259 dont touch it for B-frames as they need the skip info from the next p-frame */
1260 if (s->pict_type != B_TYPE) {
3bb4e23a
FB
1261 mbskip_ptr = &s->mbskip_table[s->mb_y * s->mb_width + s->mb_x];
1262 if (s->mb_skiped) {
1263 s->mb_skiped = 0;
9dbcbd92
MN
1264 /* if previous was skipped too, then nothing to do !
1265 skip only during decoding as we might trash the buffers during encoding a bit */
1266 if (*mbskip_ptr != 0 && !s->encoding)
3bb4e23a
FB
1267 goto the_end;
1268 *mbskip_ptr = 1; /* indicate that this time we skiped it */
1269 } else {
1270 *mbskip_ptr = 0; /* not skipped */
1271 }
1272 }
de6d9b64
FB
1273
1274 dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize) + mb_x * 16;
1275 dest_cb = s->current_picture[1] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
1276 dest_cr = s->current_picture[2] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
1277
1278 if (s->interlaced_dct) {
1279 dct_linesize = s->linesize * 2;
1280 dct_offset = s->linesize;
1281 } else {
1282 dct_linesize = s->linesize;
1283 dct_offset = s->linesize * 8;
1284 }
1285
1286 if (!s->mb_intra) {
1287 /* motion handling */
9dbcbd92 1288 if((s->flags&CODEC_FLAG_HQ) || (!s->encoding)){
91029be7 1289 if ((!s->no_rounding) || s->pict_type==B_TYPE){
9dbcbd92
MN
1290 op_pix = put_pixels_tab;
1291 op_qpix= qpel_mc_rnd_tab;
1292 }else{
1293 op_pix = put_no_rnd_pixels_tab;
1294 op_qpix= qpel_mc_no_rnd_tab;
1295 }
de6d9b64 1296
9dbcbd92
MN
1297 if (s->mv_dir & MV_DIR_FORWARD) {
1298 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
91029be7 1299 if ((!s->no_rounding) || s->pict_type==B_TYPE)
9dbcbd92
MN
1300 op_pix = avg_pixels_tab;
1301 else
1302 op_pix = avg_no_rnd_pixels_tab;
1303 }
1304 if (s->mv_dir & MV_DIR_BACKWARD) {
1305 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1306 }
de6d9b64
FB
1307 }
1308
1309 /* add dct residue */
1310 add_dct(s, block[0], 0, dest_y, dct_linesize);
1311 add_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1312 add_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1313 add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1314
51454751
FB
1315 add_dct(s, block[4], 4, dest_cb, s->linesize >> 1);
1316 add_dct(s, block[5], 5, dest_cr, s->linesize >> 1);
de6d9b64
FB
1317 } else {
1318 /* dct only in intra block */
1319 put_dct(s, block[0], 0, dest_y, dct_linesize);
1320 put_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1321 put_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1322 put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1323
51454751
FB
1324 put_dct(s, block[4], 4, dest_cb, s->linesize >> 1);
1325 put_dct(s, block[5], 5, dest_cr, s->linesize >> 1);
de6d9b64
FB
1326 }
1327 }
3bb4e23a 1328 the_end:
ba6802de 1329 emms_c(); //FIXME remove
de6d9b64
FB
1330}
1331
d7e9533a
MN
1332static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1333{
1334 int i;
1335 const int maxlevel= s->max_qcoeff;
1336 const int minlevel= s->min_qcoeff;
ef5b1b5a
J
1337
1338 for(i=0;i<=last_index; i++){
d7e9533a
MN
1339 const int j = zigzag_direct[i];
1340 int level = block[j];
1341
1342 if (level>maxlevel) level=maxlevel;
1343 else if(level<minlevel) level=minlevel;
1344 block[j]= level;
1345 }
1346}
9dbcbd92
MN
1347
1348static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
de6d9b64 1349{
ba6802de
MN
1350 const int mb_x= s->mb_x;
1351 const int mb_y= s->mb_y;
ba6802de 1352 int i;
9dbcbd92
MN
1353#if 0
1354 if (s->interlaced_dct) {
1355 dct_linesize = s->linesize * 2;
1356 dct_offset = s->linesize;
1357 } else {
1358 dct_linesize = s->linesize;
1359 dct_offset = s->linesize * 8;
1360 }
1361#endif
ba6802de 1362
9dbcbd92
MN
1363 if (s->mb_intra) {
1364 UINT8 *ptr;
1365 int wrap;
1366
1367 wrap = s->linesize;
1368 ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
1369 get_pixels(s->block[0], ptr , wrap);
1370 get_pixels(s->block[1], ptr + 8, wrap);
1371 get_pixels(s->block[2], ptr + 8 * wrap , wrap);
1372 get_pixels(s->block[3], ptr + 8 * wrap + 8, wrap);
1373
1374 wrap >>=1;
1375 ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
1376 get_pixels(s->block[4], ptr, wrap);
1377
1378 ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
1379 get_pixels(s->block[5], ptr, wrap);
1380 }else{
1381 op_pixels_func *op_pix;
1382 qpel_mc_func *op_qpix;
1383 UINT8 *dest_y, *dest_cb, *dest_cr;
1384 UINT8 *ptr;
1385 int wrap;
1386
1387 dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize ) + mb_x * 16;
1388 dest_cb = s->current_picture[1] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
1389 dest_cr = s->current_picture[2] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
1390
91029be7 1391 if ((!s->no_rounding) || s->pict_type==B_TYPE){
9dbcbd92
MN
1392 op_pix = put_pixels_tab;
1393 op_qpix= qpel_mc_rnd_tab;
cf8039b2 1394 }else{
9dbcbd92
MN
1395 op_pix = put_no_rnd_pixels_tab;
1396 op_qpix= qpel_mc_no_rnd_tab;
1397 }
1398
1399 if (s->mv_dir & MV_DIR_FORWARD) {
1400 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
91029be7 1401 if ((!s->no_rounding) || s->pict_type==B_TYPE)
9dbcbd92
MN
1402 op_pix = avg_pixels_tab;
1403 else
1404 op_pix = avg_no_rnd_pixels_tab;
1405 }
1406 if (s->mv_dir & MV_DIR_BACKWARD) {
1407 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
ba6802de 1408 }
9dbcbd92
MN
1409 wrap = s->linesize;
1410 ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
1411 diff_pixels(s->block[0], ptr , dest_y , wrap);
1412 diff_pixels(s->block[1], ptr + 8, dest_y + 8, wrap);
1413 diff_pixels(s->block[2], ptr + 8 * wrap , dest_y + 8 * wrap , wrap);
1414 diff_pixels(s->block[3], ptr + 8 * wrap + 8, dest_y + 8 * wrap + 8, wrap);
1415
1416 wrap >>=1;
1417 ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
1418 diff_pixels(s->block[4], ptr, dest_cb, wrap);
1419
1420 ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
1421 diff_pixels(s->block[5], ptr, dest_cr, wrap);
ba6802de
MN
1422 }
1423
1424#if 0
1425 {
1426 float adap_parm;
1427
1428 adap_parm = ((s->avg_mb_var << 1) + s->mb_var[s->mb_width*mb_y+mb_x] + 1.0) /
1429 ((s->mb_var[s->mb_width*mb_y+mb_x] << 1) + s->avg_mb_var + 1.0);
1430
1431 printf("\ntype=%c qscale=%2d adap=%0.2f dquant=%4.2f var=%4d avgvar=%4d",
1432 (s->mb_type[s->mb_width*mb_y+mb_x] > 0) ? 'I' : 'P',
1433 s->qscale, adap_parm, s->qscale*adap_parm,
1434 s->mb_var[s->mb_width*mb_y+mb_x], s->avg_mb_var);
1435 }
1436#endif
1437 /* DCT & quantize */
bb71e317 1438 if (s->h263_pred && s->msmpeg4_version!=2) {
ba6802de 1439 h263_dc_scale(s);
ef5b1b5a
J
1440 } else if (s->h263_aic) {
1441 s->y_dc_scale = 2*s->qscale;
1442 s->c_dc_scale = 2*s->qscale;
ba6802de
MN
1443 } else {
1444 /* default quantization values */
1445 s->y_dc_scale = 8;
1446 s->c_dc_scale = 8;
1447 }
d7e9533a
MN
1448 if(s->out_format==FMT_MJPEG){
1449 for(i=0;i<6;i++) {
1450 int overflow;
1451 s->block_last_index[i] = dct_quantize(s, s->block[i], i, 8, &overflow);
ef5b1b5a 1452 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
d7e9533a
MN
1453 }
1454 }else{
1455 for(i=0;i<6;i++) {
1456 int overflow;
1457 s->block_last_index[i] = dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1458 // FIXME we could decide to change to quantizer instead of clipping
ef5b1b5a
J
1459 // JS: I don't think that would be a good idea it could lower quality instead
1460 // of improve it. Just INTRADC clipping deserves changes in quantizer
1461 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
d7e9533a 1462 }
ba6802de
MN
1463 }
1464
1465 /* huffman encode */
1466 switch(s->out_format) {
1467 case FMT_MPEG1:
1468 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1469 break;
1470 case FMT_H263:
1471 if (s->h263_msmpeg4)
1472 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1473 else if(s->h263_pred)
1474 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1475 else
1476 h263_encode_mb(s, s->block, motion_x, motion_y);
1477 break;
1478 case FMT_MJPEG:
1479 mjpeg_encode_mb(s, s->block);
1480 break;
1481 }
1482}
1483
1484static void copy_bits(PutBitContext *pb, UINT8 *src, int length)
1485{
1f0cd30f
MN
1486#if 1
1487 int bytes= length>>4;
1488 int bits= length&15;
1489 int i;
1490
1491 for(i=0; i<bytes; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
1492 put_bits(pb, bits, be2me_16(((uint16_t*)src)[i])>>(16-bits));
1493#else
ba6802de
MN
1494 int bytes= length>>3;
1495 int bits= length&7;
1496 int i;
1497
1498 for(i=0; i<bytes; i++) put_bits(pb, 8, src[i]);
1499 put_bits(pb, bits, src[i]>>(8-bits));
1f0cd30f 1500#endif
ba6802de
MN
1501}
1502
1f0cd30f
MN
1503static void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1504 int i;
1505
1506 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1507
1508 /* mpeg1 */
1509 d->mb_incr= s->mb_incr;
1510 for(i=0; i<3; i++)
1511 d->last_dc[i]= s->last_dc[i];
1512
1513 /* statistics */
1514 d->mv_bits= s->mv_bits;
1515 d->i_tex_bits= s->i_tex_bits;
1516 d->p_tex_bits= s->p_tex_bits;
1517 d->i_count= s->i_count;
1518 d->p_count= s->p_count;
1519 d->skip_count= s->skip_count;
1520 d->misc_bits= s->misc_bits;
8b4c7dbc 1521 d->last_bits= 0;
91029be7
MN
1522
1523 d->mb_skiped= s->mb_skiped;
1f0cd30f
MN
1524}
1525
1526static void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1527 int i;
1528
1529 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1530 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1531
1532 /* mpeg1 */
1533 d->mb_incr= s->mb_incr;
1534 for(i=0; i<3; i++)
1535 d->last_dc[i]= s->last_dc[i];
1536
1537 /* statistics */
1538 d->mv_bits= s->mv_bits;
1539 d->i_tex_bits= s->i_tex_bits;
1540 d->p_tex_bits= s->p_tex_bits;
1541 d->i_count= s->i_count;
1542 d->p_count= s->p_count;
1543 d->skip_count= s->skip_count;
1544 d->misc_bits= s->misc_bits;
1f0cd30f
MN
1545
1546 d->mb_intra= s->mb_intra;
91029be7 1547 d->mb_skiped= s->mb_skiped;
1f0cd30f
MN
1548 d->mv_type= s->mv_type;
1549 d->mv_dir= s->mv_dir;
1550 d->pb= s->pb;
1551 d->block= s->block;
1552 for(i=0; i<6; i++)
1553 d->block_last_index[i]= s->block_last_index[i];
1554}
1555
1556
ba6802de
MN
1557static void encode_picture(MpegEncContext *s, int picture_number)
1558{
1559 int mb_x, mb_y, last_gob, pdif = 0;
1560 int i;
098eefe1 1561 int bits;
1f0cd30f 1562 MpegEncContext best_s, backup_s;
91029be7 1563 UINT8 bit_buf[7][3000]; //FIXME check that this is ALLWAYS large enogh for a MB
de6d9b64
FB
1564
1565 s->picture_number = picture_number;
9cdd6a24 1566
ba6802de
MN
1567 s->block_wrap[0]=
1568 s->block_wrap[1]=
1569 s->block_wrap[2]=
1570 s->block_wrap[3]= s->mb_width*2 + 2;
1571 s->block_wrap[4]=
1572 s->block_wrap[5]= s->mb_width + 2;
1573
9cdd6a24
MN
1574 /* Reset the average MB variance */
1575 s->avg_mb_var = 0;
1576 s->mc_mb_var = 0;
91029be7
MN
1577
1578 /* we need to initialize some time vars before we can encode b-frames */
1579 if (s->h263_pred && !s->h263_msmpeg4)
1580 ff_set_mpeg4_time(s, s->picture_number);
1581
9cdd6a24 1582 /* Estimate motion for every MB */
9dbcbd92
MN
1583 if(s->pict_type != I_TYPE){
1584// int16_t (*tmp)[2]= s->p_mv_table;
1585// s->p_mv_table= s->last_mv_table;
1586// s->last_mv_table= s->mv_table;
1587
ba6802de
MN
1588 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
1589 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
1590 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
1591 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
1592 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
1593 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1594 s->mb_x = mb_x;
1595 s->mb_y = mb_y;
1596 s->block_index[0]+=2;
1597 s->block_index[1]+=2;
1598 s->block_index[2]+=2;
1599 s->block_index[3]+=2;
1600
1601 /* compute motion vector & mb_type and store in context */
9dbcbd92
MN
1602 if(s->pict_type==B_TYPE)
1603 ff_estimate_b_frame_motion(s, mb_x, mb_y);
1604 else
1605 ff_estimate_p_frame_motion(s, mb_x, mb_y);
ba6802de 1606// s->mb_type[mb_y*s->mb_width + mb_x]=MB_TYPE_INTER;
9cdd6a24 1607 }
9cdd6a24 1608 }
ba6802de 1609 emms_c();
9dbcbd92 1610 }else if(s->pict_type == I_TYPE){
ba6802de
MN
1611 /* I-Frame */
1612 //FIXME do we need to zero them?
1613 memset(s->motion_val[0], 0, sizeof(INT16)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
9dbcbd92 1614 memset(s->p_mv_table , 0, sizeof(INT16)*(s->mb_width+2)*(s->mb_height+2)*2);
ba6802de 1615 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
9cdd6a24
MN
1616 }
1617
8b4c7dbc 1618 if(s->avg_mb_var < s->mc_mb_var && s->pict_type == P_TYPE){ //FIXME subtract MV bits
bd31a775 1619 s->pict_type= I_TYPE;
ba6802de 1620 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
8b4c7dbc
MN
1621 if(s->max_b_frames==0){
1622 s->input_pict_type= I_TYPE;
1623 s->input_picture_in_gop_number=0;
1624 }
ba6802de 1625//printf("Scene change detected, encoding as I Frame\n");
bd31a775 1626 }
9dbcbd92
MN
1627
1628 if(s->pict_type==P_TYPE || s->pict_type==S_TYPE)
1629 s->f_code= ff_get_best_fcode(s, s->p_mv_table, MB_TYPE_INTER);
1630 ff_fix_long_p_mvs(s);
1631 if(s->pict_type==B_TYPE){
1632 s->f_code= ff_get_best_fcode(s, s->b_forw_mv_table, MB_TYPE_FORWARD);
1633 s->b_code= ff_get_best_fcode(s, s->b_back_mv_table, MB_TYPE_BACKWARD);
91029be7
MN
1634
1635 ff_fix_long_b_mvs(s, s->b_forw_mv_table, s->f_code, MB_TYPE_FORWARD);
1636 ff_fix_long_b_mvs(s, s->b_back_mv_table, s->b_code, MB_TYPE_BACKWARD);
1637 ff_fix_long_b_mvs(s, s->b_bidir_forw_mv_table, s->f_code, MB_TYPE_BIDIR);
1638 ff_fix_long_b_mvs(s, s->b_bidir_back_mv_table, s->b_code, MB_TYPE_BIDIR);
45870f57 1639 }
9dbcbd92 1640
45870f57 1641//printf("f_code %d ///\n", s->f_code);
45870f57 1642
bd31a775
MN
1643// printf("%d %d\n", s->avg_mb_var, s->mc_mb_var);
1644
8b4c7dbc
MN
1645 if(s->flags&CODEC_FLAG_PASS2)
1646 s->qscale = ff_rate_estimate_qscale_pass2(s);
1647 else if (!s->fixed_qscale)
1648 s->qscale = ff_rate_estimate_qscale(s);
1649
de6d9b64
FB
1650 if (s->out_format == FMT_MJPEG) {
1651 /* for mjpeg, we do include qscale in the matrix */
1652 s->intra_matrix[0] = default_intra_matrix[0];
1653 for(i=1;i<64;i++)
a69b930c 1654 s->intra_matrix[i] = CLAMP_TO_8BIT((default_intra_matrix[i] * s->qscale) >> 3);
d7e9533a
MN
1655 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16,
1656 s->q_intra_matrix16_bias, s->intra_matrix, s->intra_quant_bias);
de6d9b64
FB
1657 }
1658
098eefe1 1659 s->last_bits= get_bit_count(&s->pb);
de6d9b64
FB
1660 switch(s->out_format) {
1661 case FMT_MJPEG:
1662 mjpeg_picture_header(s);
1663 break;
1664 case FMT_H263:
1665 if (s->h263_msmpeg4)
1666 msmpeg4_encode_picture_header(s, picture_number);
1667 else if (s->h263_pred)
1668 mpeg4_encode_picture_header(s, picture_number);
1669 else if (s->h263_rv10)
1670 rv10_encode_picture_header(s, picture_number);
1671 else
1672 h263_encode_picture_header(s, picture_number);
1673 break;
1674 case FMT_MPEG1:
1675 mpeg1_encode_picture_header(s, picture_number);
1676 break;
1677 }
098eefe1
MN
1678 bits= get_bit_count(&s->pb);
1679 s->header_bits= bits - s->last_bits;
1680 s->last_bits= bits;
1681 s->mv_bits=0;
1682 s->misc_bits=0;
1683 s->i_tex_bits=0;
1684 s->p_tex_bits=0;
1685 s->i_count=0;
1686 s->p_count=0;
1687 s->skip_count=0;
1688
de6d9b64
FB
1689 /* init last dc values */
1690 /* note: quant matrix value (8) is implied here */
1691 s->last_dc[0] = 128;
1692 s->last_dc[1] = 128;
1693 s->last_dc[2] = 128;
1694 s->mb_incr = 1;
1695 s->last_mv[0][0][0] = 0;
1696 s->last_mv[0][0][1] = 0;
de6d9b64 1697
644d98a4 1698 /* Get the GOB height based on picture height */
81401c1f 1699 if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4) {
644d98a4
J
1700 if (s->height <= 400)
1701 s->gob_index = 1;
1702 else if (s->height <= 800)
1703 s->gob_index = 2;
1704 else
1705 s->gob_index = 4;
1706 }
9cdd6a24 1707
e03c341e
J
1708 s->avg_mb_var = s->avg_mb_var / s->mb_num;
1709
1710 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
1711 /* Put GOB header based on RTP MTU */
1712 /* TODO: Put all this stuff in a separate generic function */
1713 if (s->rtp_mode) {
1714 if (!mb_y) {
1715 s->ptr_lastgob = s->pb.buf;
1716 s->ptr_last_mb_line = s->pb.buf;
1717 } else if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4 && !(mb_y % s->gob_index)) {
1718 last_gob = h263_encode_gob_header(s, mb_y);
1719 if (last_gob) {
1720 s->first_gob_line = 1;
1721 }
1722 }
1723 }
1724
4278e7a6
MN
1725 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
1726 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
1727 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
1728 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
1729 s->block_index[4]= s->block_wrap[4]*(mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2);
1730 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 1731 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
91029be7
MN
1732 const int mb_type= s->mb_type[mb_y * s->mb_width + mb_x];
1733 const int xy= (mb_y+1) * (s->mb_width+2) + mb_x + 1;
ba6802de
MN
1734 PutBitContext pb;
1735 int d;
1736 int dmin=10000000;
1737 int best=0;
37fbfd0a
J
1738
1739 s->mb_x = mb_x;
1740 s->mb_y = mb_y;
4278e7a6
MN
1741 s->block_index[0]+=2;
1742 s->block_index[1]+=2;
1743 s->block_index[2]+=2;
1744 s->block_index[3]+=2;
1745 s->block_index[4]++;
1746 s->block_index[5]++;
ba6802de 1747 if(mb_type & (mb_type-1)){ // more than 1 MB type possible
91029be7 1748 int next_block=0;
ba6802de 1749 pb= s->pb;
1f0cd30f
MN
1750
1751 copy_context_before_encode(&backup_s, s, -1);
1752
ba6802de 1753 if(mb_type&MB_TYPE_INTER){
91029be7 1754 s->mv_dir = MV_DIR_FORWARD;
cf8039b2 1755 s->mv_type = MV_TYPE_16X16;
ba6802de 1756 s->mb_intra= 0;
9dbcbd92
MN
1757 s->mv[0][0][0] = s->p_mv_table[xy][0];
1758 s->mv[0][0][1] = s->p_mv_table[xy][1];
ba6802de 1759 init_put_bits(&s->pb, bit_buf[1], 3000, NULL, NULL);
91029be7 1760 s->block= s->blocks[next_block];
8b4c7dbc 1761 s->last_bits= 0; //done in copy_context_before_encode but we skip that here
ba6802de 1762
9dbcbd92 1763 encode_mb(s, s->mv[0][0][0], s->mv[0][0][1]);
ba6802de
MN
1764 d= get_bit_count(&s->pb);
1765 if(d<dmin){
1766 flush_put_bits(&s->pb);
1767 dmin=d;
1f0cd30f 1768 copy_context_after_encode(&best_s, s, MB_TYPE_INTER);
ba6802de 1769 best=1;
91029be7 1770 next_block^=1;
ba6802de 1771 }
de6d9b64 1772 }
1f0cd30f
MN
1773 if(mb_type&MB_TYPE_INTER4V){
1774 copy_context_before_encode(s, &backup_s, MB_TYPE_INTER4V);
91029be7 1775 s->mv_dir = MV_DIR_FORWARD;
cf8039b2
MN
1776 s->mv_type = MV_TYPE_8X8;
1777 s->mb_intra= 0;
1778 for(i=0; i<4; i++){
1779 s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
1780 s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
1781 }
1782 init_put_bits(&s->pb, bit_buf[2], 3000, NULL, NULL);
91029be7 1783 s->block= s->blocks[next_block];
cf8039b2 1784
9dbcbd92 1785 encode_mb(s, 0, 0);
cf8039b2 1786 d= get_bit_count(&s->pb);
91029be7 1787 if(d<dmin){
cf8039b2
MN
1788 flush_put_bits(&s->pb);
1789 dmin=d;
1f0cd30f 1790 copy_context_after_encode(&best_s, s, MB_TYPE_INTER4V);
cf8039b2 1791 best=2;
91029be7
MN
1792 next_block^=1;
1793 }
1794 }
1795 if(mb_type&MB_TYPE_FORWARD){
1796 copy_context_before_encode(s, &backup_s, MB_TYPE_FORWARD);
1797 s->mv_dir = MV_DIR_FORWARD;
1798 s->mv_type = MV_TYPE_16X16;
1799 s->mb_intra= 0;
1800 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
1801 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
1802 init_put_bits(&s->pb, bit_buf[3], 3000, NULL, NULL);
1803 s->block= s->blocks[next_block];
1804
1805 encode_mb(s, s->mv[0][0][0], s->mv[0][0][1]);
1806 d= get_bit_count(&s->pb);
1807 if(d<dmin){
1808 flush_put_bits(&s->pb);
1809 dmin=d;
1810 copy_context_after_encode(&best_s, s, MB_TYPE_FORWARD);
1811 best=3;
1812 next_block^=1;
1813 }
1814 }
1815 if(mb_type&MB_TYPE_BACKWARD){
1816 copy_context_before_encode(s, &backup_s, MB_TYPE_BACKWARD);
1817 s->mv_dir = MV_DIR_BACKWARD;
1818 s->mv_type = MV_TYPE_16X16;
1819 s->mb_intra= 0;
1820 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
1821 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
1822 init_put_bits(&s->pb, bit_buf[4], 3000, NULL, NULL);
1823 s->block= s->blocks[next_block];
1824
1825 encode_mb(s, s->mv[1][0][0], s->mv[1][0][1]);
1826 d= get_bit_count(&s->pb);
1827 if(d<dmin){
1828 flush_put_bits(&s->pb);
1829 dmin=d;
1830 copy_context_after_encode(&best_s, s, MB_TYPE_BACKWARD);
1831 best=4;
1832 next_block^=1;
1833 }
1834 }
1835 if(mb_type&MB_TYPE_BIDIR){
1836 copy_context_before_encode(s, &backup_s, MB_TYPE_BIDIR);
1837 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
1838 s->mv_type = MV_TYPE_16X16;
1839 s->mb_intra= 0;
1840 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
1841 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
1842 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
1843 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
1844 init_put_bits(&s->pb, bit_buf[5], 3000, NULL, NULL);
1845 s->block= s->blocks[next_block];
1846
1847 encode_mb(s, 0, 0);
1848 d= get_bit_count(&s->pb);
1849 if(d<dmin){
1850 flush_put_bits(&s->pb);
1851 dmin=d;
1852 copy_context_after_encode(&best_s, s, MB_TYPE_BIDIR);
1853 best=5;
1854 next_block^=1;
1855 }
1856 }
1857 if(mb_type&MB_TYPE_DIRECT){
1858 copy_context_before_encode(s, &backup_s, MB_TYPE_DIRECT);
1859 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
1860 s->mv_type = MV_TYPE_16X16; //FIXME
1861 s->mb_intra= 0;
1862 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
1863 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
1864 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
1865 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
1866 init_put_bits(&s->pb, bit_buf[6], 3000, NULL, NULL);
1867 s->block= s->blocks[next_block];
1868
1869 encode_mb(s, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
1870 d= get_bit_count(&s->pb);
1871 if(d<dmin){
1872 flush_put_bits(&s->pb);
1873 dmin=d;
1874 copy_context_after_encode(&best_s, s, MB_TYPE_DIRECT);
1875 best=6;
1876 next_block^=1;
cf8039b2
MN
1877 }
1878 }
ba6802de 1879 if(mb_type&MB_TYPE_INTRA){
1f0cd30f 1880 copy_context_before_encode(s, &backup_s, MB_TYPE_INTRA);
91029be7 1881 s->mv_dir = MV_DIR_FORWARD;
cf8039b2 1882 s->mv_type = MV_TYPE_16X16;
ba6802de
MN
1883 s->mb_intra= 1;
1884 s->mv[0][0][0] = 0;
1885 s->mv[0][0][1] = 0;
1886 init_put_bits(&s->pb, bit_buf[0], 3000, NULL, NULL);
91029be7 1887 s->block= s->blocks[next_block];
ba6802de 1888
9dbcbd92 1889 encode_mb(s, 0, 0);
ba6802de
MN
1890 d= get_bit_count(&s->pb);
1891 if(d<dmin){
1892 flush_put_bits(&s->pb);
1893 dmin=d;
1f0cd30f 1894 copy_context_after_encode(&best_s, s, MB_TYPE_INTRA);
ba6802de 1895 best=0;
91029be7 1896 next_block^=1;
ba6802de 1897 }
1f0cd30f
MN
1898 /* force cleaning of ac/dc pred stuff if needed ... */
1899 if(s->h263_pred || s->h263_aic)
1900 s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
cf8039b2 1901 }
1f0cd30f 1902 copy_context_after_encode(s, &best_s, -1);
ba6802de 1903 copy_bits(&pb, bit_buf[best], dmin);
ba6802de 1904 s->pb= pb;
8b4c7dbc 1905 s->last_bits= get_bit_count(&s->pb);
de6d9b64 1906 } else {
9dbcbd92
MN
1907 int motion_x, motion_y;
1908 s->mv_type=MV_TYPE_16X16;
ba6802de 1909 // only one MB-Type possible
91029be7
MN
1910 switch(mb_type){
1911 case MB_TYPE_INTRA:
9dbcbd92 1912 s->mv_dir = MV_DIR_FORWARD;
ba6802de 1913 s->mb_intra= 1;
9dbcbd92
MN
1914 motion_x= s->mv[0][0][0] = 0;
1915 motion_y= s->mv[0][0][1] = 0;
91029be7
MN
1916 break;
1917 case MB_TYPE_INTER:
9dbcbd92
MN
1918 s->mv_dir = MV_DIR_FORWARD;
1919 s->mb_intra= 0;
1920 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
1921 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
91029be7
MN
1922 break;
1923 case MB_TYPE_DIRECT:
9dbcbd92
MN
1924 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
1925 s->mb_intra= 0;
91029be7
MN
1926 motion_x=s->b_direct_mv_table[xy][0];
1927 motion_y=s->b_direct_mv_table[xy][1];
1928 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
1929 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
1930 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
1931 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
1932 break;
1933 case MB_TYPE_BIDIR:
9dbcbd92 1934 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
ba6802de 1935 s->mb_intra= 0;
9dbcbd92
MN
1936 motion_x=0;
1937 motion_y=0;
1938 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
1939 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
1940 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
1941 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
91029be7
MN
1942 break;
1943 case MB_TYPE_BACKWARD:
9dbcbd92
MN
1944 s->mv_dir = MV_DIR_BACKWARD;
1945 s->mb_intra= 0;
1946 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
1947 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
91029be7
MN
1948 break;
1949 case MB_TYPE_FORWARD:
9dbcbd92
MN
1950 s->mv_dir = MV_DIR_FORWARD;
1951 s->mb_intra= 0;
1952 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
1953 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
1954// printf(" %d %d ", motion_x, motion_y);
91029be7
MN
1955 break;
1956 default:
9dbcbd92
MN
1957 motion_x=motion_y=0; //gcc warning fix
1958 printf("illegal MB type\n");
ba6802de 1959 }
9dbcbd92 1960 encode_mb(s, motion_x, motion_y);
de6d9b64 1961 }
91029be7
MN
1962 /* clean the MV table in IPS frames for direct mode in B frames */
1963 if(s->mb_intra /* && I,P,S_TYPE */){
1964 s->p_mv_table[xy][0]=0;
1965 s->p_mv_table[xy][1]=0;
1966 }
de6d9b64 1967
21af69f7 1968 MPV_decode_mb(s, s->block);
de6d9b64 1969 }
17592475
MN
1970
1971
81401c1f
J
1972 /* Obtain average GOB size for RTP */
1973 if (s->rtp_mode) {
1974 if (!mb_y)
17592475 1975 s->mb_line_avgsize = pbBufPtr(&s->pb) - s->ptr_last_mb_line;
81401c1f 1976 else if (!(mb_y % s->gob_index)) {
17592475
MN
1977 s->mb_line_avgsize = (s->mb_line_avgsize + pbBufPtr(&s->pb) - s->ptr_last_mb_line) >> 1;
1978 s->ptr_last_mb_line = pbBufPtr(&s->pb);
81401c1f
J
1979 }
1980 //fprintf(stderr, "\nMB line: %d\tSize: %u\tAvg. Size: %u", s->mb_y,
1981 // (s->pb.buf_ptr - s->ptr_last_mb_line), s->mb_line_avgsize);
1982 s->first_gob_line = 0;
1983 }
de6d9b64 1984 }
ba6802de 1985 emms_c();
098eefe1 1986
e1a9dbff 1987 if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
ae40484c
MN
1988 msmpeg4_encode_ext_header(s);
1989
644d98a4
J
1990 //if (s->gob_number)
1991 // fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
81401c1f
J
1992
1993 /* Send the last GOB if RTP */
1994 if (s->rtp_mode) {
1995 flush_put_bits(&s->pb);
17592475 1996 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
81401c1f
J
1997 /* Call the RTP callback to send the last GOB */
1998 if (s->rtp_callback)
1999 s->rtp_callback(s->ptr_lastgob, pdif, s->gob_number);
17592475 2000 s->ptr_lastgob = pbBufPtr(&s->pb);
81401c1f
J
2001 //fprintf(stderr,"\nGOB: %2d size: %d (last)", s->gob_number, pdif);
2002 }
de6d9b64
FB
2003}
2004
2f349de2 2005static int dct_quantize_c(MpegEncContext *s,
de6d9b64 2006 DCTELEM *block, int n,
d7e9533a 2007 int qscale, int *overflow)
de6d9b64
FB
2008{
2009 int i, j, level, last_non_zero, q;
2010 const int *qmat;
d7e9533a
MN
2011 int bias;
2012 int max=0;
2013 unsigned int threshold1, threshold2;
de6d9b64
FB
2014
2015 av_fdct (block);
2016
1a565432
FB
2017 /* we need this permutation so that we correct the IDCT
2018 permutation. will be moved into DCT code */
2019 block_permute(block);
2020
de6d9b64 2021 if (s->mb_intra) {
ef5b1b5a
J
2022 if (!s->h263_aic) {
2023 if (n < 4)
2024 q = s->y_dc_scale;
2025 else
2026 q = s->c_dc_scale;
2027 q = q << 3;
2028 } else
2029 /* For AIC we skip quant/dequant of INTRADC */
2030 q = 1 << 3;
2031
de6d9b64
FB
2032 /* note: block[0] is assumed to be positive */
2033 block[0] = (block[0] + (q >> 1)) / q;
2034 i = 1;
2035 last_non_zero = 0;
d7e9533a
MN
2036 qmat = s->q_intra_matrix[qscale];
2037 bias= s->intra_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
de6d9b64
FB
2038 } else {
2039 i = 0;
2040 last_non_zero = -1;
d7e9533a
MN
2041 qmat = s->q_inter_matrix[qscale];
2042 bias= s->inter_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
de6d9b64 2043 }
d7e9533a
MN
2044 threshold1= (1<<(QMAT_SHIFT - 3)) - bias - 1;
2045 threshold2= threshold1<<1;
de6d9b64
FB
2046
2047 for(;i<64;i++) {
2048 j = zigzag_direct[i];
2049 level = block[j];
2050 level = level * qmat[j];
de6d9b64 2051
d7e9533a
MN
2052// if( bias+level >= (1<<(QMAT_SHIFT - 3))
2053// || bias-level >= (1<<(QMAT_SHIFT - 3))){
2054 if(((unsigned)(level+threshold1))>threshold2){
2055 if(level>0){
2056 level= (bias + level)>>(QMAT_SHIFT - 3);
2057 block[j]= level;
2058 }else{
2059 level= (bias - level)>>(QMAT_SHIFT - 3);
2060 block[j]= -level;
2061 }
2062 max |=level;
de6d9b64 2063 last_non_zero = i;
d7e9533a
MN
2064 }else{
2065 block[j]=0;
de6d9b64
FB
2066 }
2067 }
d7e9533a
MN
2068 *overflow= s->max_qcoeff < max; //overflow might have happend
2069
de6d9b64
FB
2070 return last_non_zero;
2071}
2072
21af69f7
FB
2073static void dct_unquantize_mpeg1_c(MpegEncContext *s,
2074 DCTELEM *block, int n, int qscale)
de6d9b64 2075{
badaf88e 2076 int i, level, nCoeffs;
de6d9b64
FB
2077 const UINT16 *quant_matrix;
2078
badaf88e
MN
2079 if(s->alternate_scan) nCoeffs= 64;
2080 else nCoeffs= s->block_last_index[n]+1;
2081
de6d9b64
FB
2082 if (s->mb_intra) {
2083 if (n < 4)
2084 block[0] = block[0] * s->y_dc_scale;
2085 else
2086 block[0] = block[0] * s->c_dc_scale;
de6d9b64
FB
2087 /* XXX: only mpeg1 */
2088 quant_matrix = s->intra_matrix;
badaf88e
MN
2089 for(i=1;i<nCoeffs;i++) {
2090 int j= zigzag_direct[i];
2091 level = block[j];
de6d9b64
FB
2092 if (level) {
2093 if (level < 0) {
2094 level = -level;
badaf88e 2095 level = (int)(level * qscale * quant_matrix[j]) >> 3;
de6d9b64
FB
2096 level = (level - 1) | 1;
2097 level = -level;
2098 } else {
badaf88e 2099 level = (int)(level * qscale * quant_matrix[j]) >> 3;
de6d9b64
FB
2100 level = (level - 1) | 1;
2101 }
2102#ifdef PARANOID
2103 if (level < -2048 || level > 2047)
2104 fprintf(stderr, "unquant error %d %d\n", i, level);
2105#endif
badaf88e 2106 block[j] = level;
de6d9b64
FB
2107 }
2108 }
2109 } else {
2110 i = 0;
d7e9533a 2111 quant_matrix = s->inter_matrix;
d2b3c3d7 2112 for(;i<nCoeffs;i++) {
badaf88e
MN
2113 int j= zigzag_direct[i];
2114 level = block[j];
de6d9b64
FB
2115 if (level) {
2116 if (level < 0) {
2117 level = -level;
2118 level = (((level << 1) + 1) * qscale *
badaf88e 2119 ((int) (quant_matrix[j]))) >> 4;
de6d9b64
FB
2120 level = (level - 1) | 1;
2121 level = -level;
2122 } else {
2123 level = (((level << 1) + 1) * qscale *
badaf88e 2124 ((int) (quant_matrix[j]))) >> 4;
de6d9b64
FB
2125 level = (level - 1) | 1;
2126 }
2127#ifdef PARANOID
2128 if (level < -2048 || level > 2047)
2129 fprintf(stderr, "unquant error %d %d\n", i, level);
2130#endif
badaf88e 2131 block[j] = level;
de6d9b64
FB
2132 }
2133 }
2134 }
2135}
21af69f7 2136
9dbf1ddd
MN
2137static void dct_unquantize_mpeg2_c(MpegEncContext *s,
2138 DCTELEM *block, int n, int qscale)
2139{
2140 int i, level, nCoeffs;
2141 const UINT16 *quant_matrix;
2142
2143 if(s->alternate_scan) nCoeffs= 64;
2144 else nCoeffs= s->block_last_index[n]+1;
2145
2146 if (s->mb_intra) {
2147 if (n < 4)
2148 block[0] = block[0] * s->y_dc_scale;
2149 else
2150 block[0] = block[0] * s->c_dc_scale;
2151 quant_matrix = s->intra_matrix;
2152 for(i=1;i<nCoeffs;i++) {
2153 int j= zigzag_direct[i];
2154 level = block[j];
2155 if (level) {
2156 if (level < 0) {
2157 level = -level;
2158 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2159 level = -level;
2160 } else {
2161 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2162 }
2163#ifdef PARANOID
2164 if (level < -2048 || level > 2047)
2165 fprintf(stderr, "unquant error %d %d\n", i, level);
2166#endif
2167 block[j] = level;
2168 }
2169 }
2170 } else {
2171 int sum=-1;
2172 i = 0;
d7e9533a 2173 quant_matrix = s->inter_matrix;
9dbf1ddd
MN
2174 for(;i<nCoeffs;i++) {
2175 int j= zigzag_direct[i];
2176 level = block[j];
2177 if (level) {
2178 if (level < 0) {
2179 level = -level;
2180 level = (((level << 1) + 1) * qscale *
2181 ((int) (quant_matrix[j]))) >> 4;
2182 level = -level;
2183 } else {
2184 level = (((level << 1) + 1) * qscale *
2185 ((int) (quant_matrix[j]))) >> 4;
2186 }
2187#ifdef PARANOID
2188 if (level < -2048 || level > 2047)
2189 fprintf(stderr, "unquant error %d %d\n", i, level);
2190#endif
2191 block[j] = level;
2192 sum+=level;
2193 }
2194 }
2195 block[63]^=sum&1;
2196 }
2197}
2198
2199
21af69f7
FB
2200static void dct_unquantize_h263_c(MpegEncContext *s,
2201 DCTELEM *block, int n, int qscale)
2202{
2203 int i, level, qmul, qadd;
badaf88e 2204 int nCoeffs;
9e15ad28 2205
21af69f7 2206 if (s->mb_intra) {
9e15ad28
J
2207 if (!s->h263_aic) {
2208 if (n < 4)
2209 block[0] = block[0] * s->y_dc_scale;
2210 else
2211 block[0] = block[0] * s->c_dc_scale;
2212 }
21af69f7 2213 i = 1;
badaf88e 2214 nCoeffs= 64; //does not allways use zigzag table
21af69f7
FB
2215 } else {
2216 i = 0;
badaf88e 2217 nCoeffs= zigzag_end[ s->block_last_index[n] ];
21af69f7
FB
2218 }
2219
2220 qmul = s->qscale << 1;
d140623f
J
2221 if (s->h263_aic && s->mb_intra)
2222 qadd = 0;
2223 else
2224 qadd = (s->qscale - 1) | 1;
21af69f7 2225
badaf88e 2226 for(;i<nCoeffs;i++) {
21af69f7
FB
2227 level = block[i];
2228 if (level) {
2229 if (level < 0) {
2230 level = level * qmul - qadd;
2231 } else {
2232 level = level * qmul + qadd;
2233 }
2234#ifdef PARANOID
2235 if (level < -2048 || level > 2047)
2236 fprintf(stderr, "unquant error %d %d\n", i, level);
2237#endif
2238 block[i] = level;
2239 }
2240 }
2241}
de6d9b64 2242
de6d9b64
FB
2243AVCodec mpeg1video_encoder = {
2244 "mpeg1video",
2245 CODEC_TYPE_VIDEO,
2246 CODEC_ID_MPEG1VIDEO,
2247 sizeof(MpegEncContext),
2248 MPV_encode_init,
2249 MPV_encode_picture,
2250 MPV_encode_end,
2251};
2252
2253AVCodec h263_encoder = {
2254 "h263",
2255 CODEC_TYPE_VIDEO,
2256 CODEC_ID_H263,
2257 sizeof(MpegEncContext),
2258 MPV_encode_init,
2259 MPV_encode_picture,
2260 MPV_encode_end,
2261};
2262
2263AVCodec h263p_encoder = {
2264 "h263p",
2265 CODEC_TYPE_VIDEO,
2266 CODEC_ID_H263P,
2267 sizeof(MpegEncContext),
2268 MPV_encode_init,
2269 MPV_encode_picture,
2270 MPV_encode_end,
2271};
2272
2273AVCodec rv10_encoder = {
2274 "rv10",
2275 CODEC_TYPE_VIDEO,
2276 CODEC_ID_RV10,
2277 sizeof(MpegEncContext),
2278 MPV_encode_init,
2279 MPV_encode_picture,
2280 MPV_encode_end,
2281};
2282
2283AVCodec mjpeg_encoder = {
2284 "mjpeg",
2285 CODEC_TYPE_VIDEO,
2286 CODEC_ID_MJPEG,
2287 sizeof(MpegEncContext),
2288 MPV_encode_init,
2289 MPV_encode_picture,
2290 MPV_encode_end,
2291};
2292
58f26ba9
FB
2293AVCodec mpeg4_encoder = {
2294 "mpeg4",
de6d9b64 2295 CODEC_TYPE_VIDEO,
58f26ba9 2296 CODEC_ID_MPEG4,
de6d9b64
FB
2297 sizeof(MpegEncContext),
2298 MPV_encode_init,
2299 MPV_encode_picture,
2300 MPV_encode_end,
2301};
2302
84afee34
MN
2303AVCodec msmpeg4v1_encoder = {
2304 "msmpeg4v1",
2305 CODEC_TYPE_VIDEO,
2306 CODEC_ID_MSMPEG4V1,
2307 sizeof(MpegEncContext),
2308 MPV_encode_init,
2309 MPV_encode_picture,
2310 MPV_encode_end,
2311};
2312
2313AVCodec msmpeg4v2_encoder = {
2314 "msmpeg4v2",
2315 CODEC_TYPE_VIDEO,
2316 CODEC_ID_MSMPEG4V2,
2317 sizeof(MpegEncContext),
2318 MPV_encode_init,
2319 MPV_encode_picture,
2320 MPV_encode_end,
2321};
2322
2323AVCodec msmpeg4v3_encoder = {
de6d9b64
FB
2324 "msmpeg4",
2325 CODEC_TYPE_VIDEO,
84afee34 2326 CODEC_ID_MSMPEG4V3,
de6d9b64
FB
2327 sizeof(MpegEncContext),
2328 MPV_encode_init,
2329 MPV_encode_picture,
2330 MPV_encode_end,
2331};