exporting qscale data for postprocessing (for MPlayer)
[libav.git] / libavcodec / mpegvideo.c
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.
18 */
19 #include <stdlib.h>
20 #include <stdio.h>
21 #include <math.h>
22 #include <string.h>
23 #include "avcodec.h"
24 #include "dsputil.h"
25 #include "mpegvideo.h"
26
27 #ifdef USE_FASTMEMCPY
28 #include "fastmemcpy.h"
29 #endif
30
31 static void encode_picture(MpegEncContext *s, int picture_number);
32 static void rate_control_init(MpegEncContext *s);
33 static int rate_estimate_qscale(MpegEncContext *s);
34 static void dct_unquantize_mpeg1_c(MpegEncContext *s,
35 DCTELEM *block, int n, int qscale);
36 static void dct_unquantize_h263_c(MpegEncContext *s,
37 DCTELEM *block, int n, int qscale);
38 static int dct_quantize(MpegEncContext *s, DCTELEM *block, int n, int qscale);
39 static int dct_quantize_mmx(MpegEncContext *s,
40 DCTELEM *block, int n,
41 int qscale);
42 #define EDGE_WIDTH 16
43
44 /* enable all paranoid tests for rounding, overflows, etc... */
45 //#define PARANOID
46
47 //#define DEBUG
48
49 /* for jpeg fast DCT */
50 #define CONST_BITS 14
51
52 static const unsigned short aanscales[64] = {
53 /* precomputed values scaled up by 14 bits */
54 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
55 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
56 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
57 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
58 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
59 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
60 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446,
61 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247
62 };
63
64 static UINT8 h263_chroma_roundtab[16] = {
65 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
66 };
67
68 /* default motion estimation */
69 int motion_estimation_method = ME_LOG;
70
71 /* XXX: should use variable shift ? */
72 #define QMAT_SHIFT_MMX 19
73 #define QMAT_SHIFT 25
74
75 static void convert_matrix(int *qmat, const UINT16 *quant_matrix, int qscale)
76 {
77 int i;
78
79 if (av_fdct == jpeg_fdct_ifast) {
80 for(i=0;i<64;i++) {
81 /* 16 <= qscale * quant_matrix[i] <= 7905 */
82 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
83
84 qmat[i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 11)) /
85 (aanscales[i] * qscale * quant_matrix[i]));
86 }
87 } else {
88 for(i=0;i<64;i++) {
89 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
90 So 16 <= qscale * quant_matrix[i] <= 7905
91 so (1 << QMAT_SHIFT) / 16 >= qmat[i] >= (1 << QMAT_SHIFT) / 7905
92 */
93 qmat[i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
94 }
95 }
96 }
97
98 /* init common structure for both encoder and decoder */
99 int MPV_common_init(MpegEncContext *s)
100 {
101 int c_size, i;
102 UINT8 *pict;
103
104 if (s->out_format == FMT_H263)
105 s->dct_unquantize = dct_unquantize_h263_c;
106 else
107 s->dct_unquantize = dct_unquantize_mpeg1_c;
108
109 #ifdef HAVE_MMX
110 MPV_common_init_mmx(s);
111 #endif
112 s->mb_width = (s->width + 15) / 16;
113 s->mb_height = (s->height + 15) / 16;
114 s->linesize = s->mb_width * 16 + 2 * EDGE_WIDTH;
115
116 for(i=0;i<3;i++) {
117 int w, h, shift, pict_start;
118
119 w = s->linesize;
120 h = s->mb_height * 16 + 2 * EDGE_WIDTH;
121 shift = (i == 0) ? 0 : 1;
122 c_size = (w >> shift) * (h >> shift);
123 pict_start = (w >> shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
124
125 pict = av_mallocz(c_size);
126 if (pict == NULL)
127 goto fail;
128 s->last_picture_base[i] = pict;
129 s->last_picture[i] = pict + pict_start;
130
131 pict = av_mallocz(c_size);
132 if (pict == NULL)
133 goto fail;
134 s->next_picture_base[i] = pict;
135 s->next_picture[i] = pict + pict_start;
136
137 if (s->has_b_frames) {
138 pict = av_mallocz(c_size);
139 if (pict == NULL)
140 goto fail;
141 s->aux_picture_base[i] = pict;
142 s->aux_picture[i] = pict + pict_start;
143 }
144 }
145
146 if (s->out_format == FMT_H263) {
147 int size;
148 /* MV prediction */
149 size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
150 s->motion_val = malloc(size * 2 * sizeof(INT16));
151 if (s->motion_val == NULL)
152 goto fail;
153 memset(s->motion_val, 0, size * 2 * sizeof(INT16));
154 }
155
156 if (s->h263_pred) {
157 int y_size, c_size, i, size;
158
159 /* dc values */
160
161 y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
162 c_size = (s->mb_width + 2) * (s->mb_height + 2);
163 size = y_size + 2 * c_size;
164 s->dc_val[0] = malloc(size * sizeof(INT16));
165 if (s->dc_val[0] == NULL)
166 goto fail;
167 s->dc_val[1] = s->dc_val[0] + y_size;
168 s->dc_val[2] = s->dc_val[1] + c_size;
169 for(i=0;i<size;i++)
170 s->dc_val[0][i] = 1024;
171
172 /* ac values */
173 s->ac_val[0] = av_mallocz(size * sizeof(INT16) * 16);
174 if (s->ac_val[0] == NULL)
175 goto fail;
176 s->ac_val[1] = s->ac_val[0] + y_size;
177 s->ac_val[2] = s->ac_val[1] + c_size;
178
179 /* cbp values */
180 s->coded_block = av_mallocz(y_size);
181 if (!s->coded_block)
182 goto fail;
183 }
184 /* default structure is frame */
185 s->picture_structure = PICT_FRAME;
186
187 /* init macroblock skip table */
188 if (!s->encoding) {
189 s->mbskip_table = av_mallocz(s->mb_width * s->mb_height);
190 if (!s->mbskip_table)
191 goto fail;
192 }
193
194 s->context_initialized = 1;
195 return 0;
196 fail:
197 if (s->motion_val)
198 free(s->motion_val);
199 if (s->dc_val[0])
200 free(s->dc_val[0]);
201 if (s->ac_val[0])
202 free(s->ac_val[0]);
203 if (s->coded_block)
204 free(s->coded_block);
205 if (s->mbskip_table)
206 free(s->mbskip_table);
207 for(i=0;i<3;i++) {
208 if (s->last_picture_base[i])
209 free(s->last_picture_base[i]);
210 if (s->next_picture_base[i])
211 free(s->next_picture_base[i]);
212 if (s->aux_picture_base[i])
213 free(s->aux_picture_base[i]);
214 }
215 return -1;
216 }
217
218 /* init common structure for both encoder and decoder */
219 void MPV_common_end(MpegEncContext *s)
220 {
221 int i;
222
223 if (s->motion_val)
224 free(s->motion_val);
225 if (s->h263_pred) {
226 free(s->dc_val[0]);
227 free(s->ac_val[0]);
228 free(s->coded_block);
229 }
230 if (s->mbskip_table)
231 free(s->mbskip_table);
232 for(i=0;i<3;i++) {
233 free(s->last_picture_base[i]);
234 free(s->next_picture_base[i]);
235 if (s->has_b_frames)
236 free(s->aux_picture_base[i]);
237 }
238 s->context_initialized = 0;
239 }
240
241 /* init video encoder */
242 int MPV_encode_init(AVCodecContext *avctx)
243 {
244 MpegEncContext *s = avctx->priv_data;
245 int i;
246
247 s->bit_rate = avctx->bit_rate;
248 s->frame_rate = avctx->frame_rate;
249 s->width = avctx->width;
250 s->height = avctx->height;
251 s->gop_size = avctx->gop_size;
252 if (s->gop_size <= 1) {
253 s->intra_only = 1;
254 s->gop_size = 12;
255 } else {
256 s->intra_only = 0;
257 }
258 s->full_search = motion_estimation_method;
259
260 s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);
261
262 switch(avctx->codec->id) {
263 case CODEC_ID_MPEG1VIDEO:
264 s->out_format = FMT_MPEG1;
265 break;
266 case CODEC_ID_MJPEG:
267 s->out_format = FMT_MJPEG;
268 s->intra_only = 1; /* force intra only for jpeg */
269 if (mjpeg_init(s) < 0)
270 return -1;
271 break;
272 case CODEC_ID_H263:
273 if (h263_get_picture_format(s->width, s->height) == 7)
274 return -1;
275 s->out_format = FMT_H263;
276 break;
277 case CODEC_ID_H263P:
278 s->out_format = FMT_H263;
279 s->h263_plus = 1;
280 s->unrestricted_mv = 1;
281
282 /* These are just to be sure */
283 s->umvplus = 0;
284 s->umvplus_dec = 0;
285 break;
286 case CODEC_ID_RV10:
287 s->out_format = FMT_H263;
288 s->h263_rv10 = 1;
289 break;
290 case CODEC_ID_MPEG4:
291 s->out_format = FMT_H263;
292 s->h263_pred = 1;
293 s->unrestricted_mv = 1;
294 break;
295 case CODEC_ID_MSMPEG4:
296 s->out_format = FMT_H263;
297 s->h263_msmpeg4 = 1;
298 s->h263_pred = 1;
299 s->unrestricted_mv = 1;
300 break;
301 default:
302 return -1;
303 }
304
305 if (s->out_format == FMT_H263)
306 h263_encode_init_vlc(s);
307
308 s->encoding = 1;
309
310 /* init */
311 if (MPV_common_init(s) < 0)
312 return -1;
313
314 /* init default q matrix */
315 for(i=0;i<64;i++) {
316 s->intra_matrix[i] = default_intra_matrix[i];
317 s->non_intra_matrix[i] = default_non_intra_matrix[i];
318 }
319
320 /* rate control init */
321 rate_control_init(s);
322
323 s->picture_number = 0;
324 s->fake_picture_number = 0;
325 /* motion detector init */
326 s->f_code = 1;
327
328 return 0;
329 }
330
331 int MPV_encode_end(AVCodecContext *avctx)
332 {
333 MpegEncContext *s = avctx->priv_data;
334
335 #ifdef STATS
336 print_stats();
337 #endif
338 MPV_common_end(s);
339 if (s->out_format == FMT_MJPEG)
340 mjpeg_close(s);
341 return 0;
342 }
343
344 /* draw the edges of width 'w' of an image of size width, height */
345 static void draw_edges(UINT8 *buf, int wrap, int width, int height, int w)
346 {
347 UINT8 *ptr, *last_line;
348 int i;
349
350 last_line = buf + (height - 1) * wrap;
351 for(i=0;i<w;i++) {
352 /* top and bottom */
353 memcpy(buf - (i + 1) * wrap, buf, width);
354 memcpy(last_line + (i + 1) * wrap, last_line, width);
355 }
356 /* left and right */
357 ptr = buf;
358 for(i=0;i<height;i++) {
359 memset(ptr - w, ptr[0], w);
360 memset(ptr + width, ptr[width-1], w);
361 ptr += wrap;
362 }
363 /* corners */
364 for(i=0;i<w;i++) {
365 memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
366 memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
367 memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
368 memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
369 }
370 }
371
372 /* generic function for encode/decode called before a frame is coded/decoded */
373 void MPV_frame_start(MpegEncContext *s)
374 {
375 int i;
376 UINT8 *tmp;
377
378 s->mb_skiped = 0;
379 if (s->pict_type == B_TYPE) {
380 for(i=0;i<3;i++) {
381 s->current_picture[i] = s->aux_picture[i];
382 }
383 } else {
384 for(i=0;i<3;i++) {
385 /* swap next and last */
386 tmp = s->last_picture[i];
387 s->last_picture[i] = s->next_picture[i];
388 s->next_picture[i] = tmp;
389 s->current_picture[i] = tmp;
390 }
391 }
392 }
393
394 /* generic function for encode/decode called after a frame has been coded/decoded */
395 void MPV_frame_end(MpegEncContext *s)
396 {
397 /* draw edge for correct motion prediction if outside */
398 if (s->pict_type != B_TYPE) {
399 draw_edges(s->current_picture[0], s->linesize, s->width, s->height, EDGE_WIDTH);
400 draw_edges(s->current_picture[1], s->linesize/2, s->width/2, s->height/2, EDGE_WIDTH/2);
401 draw_edges(s->current_picture[2], s->linesize/2, s->width/2, s->height/2, EDGE_WIDTH/2);
402 }
403 }
404
405 int MPV_encode_picture(AVCodecContext *avctx,
406 unsigned char *buf, int buf_size, void *data)
407 {
408 MpegEncContext *s = avctx->priv_data;
409 AVPicture *pict = data;
410 int i, j;
411
412 if (s->fixed_qscale)
413 s->qscale = avctx->quality;
414
415 init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
416
417 if (!s->intra_only) {
418 /* first picture of GOP is intra */
419 if ((s->picture_number % s->gop_size) == 0)
420 s->pict_type = I_TYPE;
421 else
422 s->pict_type = P_TYPE;
423 } else {
424 s->pict_type = I_TYPE;
425 }
426 avctx->key_frame = (s->pict_type == I_TYPE);
427
428 MPV_frame_start(s);
429
430 for(i=0;i<3;i++) {
431 UINT8 *src = pict->data[i];
432 UINT8 *dest = s->current_picture[i];
433 int src_wrap = pict->linesize[i];
434 int dest_wrap = s->linesize;
435 int w = s->width;
436 int h = s->height;
437
438 if (i >= 1) {
439 dest_wrap >>= 1;
440 w >>= 1;
441 h >>= 1;
442 }
443
444 for(j=0;j<h;j++) {
445 memcpy(dest, src, w);
446 dest += dest_wrap;
447 src += src_wrap;
448 }
449 s->new_picture[i] = s->current_picture[i];
450 }
451
452 encode_picture(s, s->picture_number);
453
454 MPV_frame_end(s);
455 s->picture_number++;
456
457 if (s->out_format == FMT_MJPEG)
458 mjpeg_picture_trailer(s);
459
460 flush_put_bits(&s->pb);
461 s->total_bits += (s->pb.buf_ptr - s->pb.buf) * 8;
462 avctx->quality = s->qscale;
463 return s->pb.buf_ptr - s->pb.buf;
464 }
465
466 static inline int clip(int a, int amin, int amax)
467 {
468 if (a < amin)
469 return amin;
470 else if (a > amax)
471 return amax;
472 else
473 return a;
474 }
475
476 /* apply one mpeg motion vector to the three components */
477 static inline void mpeg_motion(MpegEncContext *s,
478 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
479 int dest_offset,
480 UINT8 **ref_picture, int src_offset,
481 int field_based, op_pixels_func *pix_op,
482 int motion_x, int motion_y, int h)
483 {
484 UINT8 *ptr;
485 int dxy, offset, mx, my, src_x, src_y, height, linesize;
486
487 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
488 src_x = s->mb_x * 16 + (motion_x >> 1);
489 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
490
491 /* WARNING: do no forget half pels */
492 height = s->height >> field_based;
493 src_x = clip(src_x, -16, s->width);
494 if (src_x == s->width)
495 dxy &= ~1;
496 src_y = clip(src_y, -16, height);
497 if (src_y == height)
498 dxy &= ~2;
499 linesize = s->linesize << field_based;
500 ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
501 dest_y += dest_offset;
502 pix_op[dxy](dest_y, ptr, linesize, h);
503 pix_op[dxy](dest_y + 8, ptr + 8, linesize, h);
504
505 if (s->out_format == FMT_H263) {
506 dxy = 0;
507 if ((motion_x & 3) != 0)
508 dxy |= 1;
509 if ((motion_y & 3) != 0)
510 dxy |= 2;
511 mx = motion_x >> 2;
512 my = motion_y >> 2;
513 } else {
514 mx = motion_x / 2;
515 my = motion_y / 2;
516 dxy = ((my & 1) << 1) | (mx & 1);
517 mx >>= 1;
518 my >>= 1;
519 }
520
521 src_x = s->mb_x * 8 + mx;
522 src_y = s->mb_y * (8 >> field_based) + my;
523 src_x = clip(src_x, -8, s->width >> 1);
524 if (src_x == (s->width >> 1))
525 dxy &= ~1;
526 src_y = clip(src_y, -8, height >> 1);
527 if (src_y == (height >> 1))
528 dxy &= ~2;
529
530 offset = (src_y * (linesize >> 1)) + src_x + (src_offset >> 1);
531 ptr = ref_picture[1] + offset;
532 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
533 ptr = ref_picture[2] + offset;
534 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
535 }
536
537 static inline void MPV_motion(MpegEncContext *s,
538 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
539 int dir, UINT8 **ref_picture,
540 op_pixels_func *pix_op)
541 {
542 int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
543 int mb_x, mb_y, i;
544 UINT8 *ptr, *dest;
545
546 mb_x = s->mb_x;
547 mb_y = s->mb_y;
548
549 switch(s->mv_type) {
550 case MV_TYPE_16X16:
551 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
552 ref_picture, 0,
553 0, pix_op,
554 s->mv[dir][0][0], s->mv[dir][0][1], 16);
555 break;
556 case MV_TYPE_8X8:
557 for(i=0;i<4;i++) {
558 motion_x = s->mv[dir][i][0];
559 motion_y = s->mv[dir][i][1];
560
561 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
562 src_x = mb_x * 16 + (motion_x >> 1) + (i & 1) * 8;
563 src_y = mb_y * 16 + (motion_y >> 1) + ((i >> 1) & 1) * 8;
564
565 /* WARNING: do no forget half pels */
566 src_x = clip(src_x, -16, s->width);
567 if (src_x == s->width)
568 dxy &= ~1;
569 src_y = clip(src_y, -16, s->height);
570 if (src_y == s->height)
571 dxy &= ~2;
572
573 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
574 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
575 pix_op[dxy](dest, ptr, s->linesize, 8);
576 }
577 /* In case of 8X8, we construct a single chroma motion vector
578 with a special rounding */
579 mx = 0;
580 my = 0;
581 for(i=0;i<4;i++) {
582 mx += s->mv[dir][i][0];
583 my += s->mv[dir][i][1];
584 }
585 if (mx >= 0)
586 mx = (h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
587 else {
588 mx = -mx;
589 mx = -(h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
590 }
591 if (my >= 0)
592 my = (h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
593 else {
594 my = -my;
595 my = -(h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
596 }
597 dxy = ((my & 1) << 1) | (mx & 1);
598 mx >>= 1;
599 my >>= 1;
600
601 src_x = mb_x * 8 + mx;
602 src_y = mb_y * 8 + my;
603 src_x = clip(src_x, -8, s->width/2);
604 if (src_x == s->width/2)
605 dxy &= ~1;
606 src_y = clip(src_y, -8, s->height/2);
607 if (src_y == s->height/2)
608 dxy &= ~2;
609
610 offset = (src_y * (s->linesize >> 1)) + src_x;
611 ptr = ref_picture[1] + offset;
612 pix_op[dxy](dest_cb, ptr, s->linesize >> 1, 8);
613 ptr = ref_picture[2] + offset;
614 pix_op[dxy](dest_cr, ptr, s->linesize >> 1, 8);
615 break;
616 case MV_TYPE_FIELD:
617 if (s->picture_structure == PICT_FRAME) {
618 /* top field */
619 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
620 ref_picture, s->field_select[dir][0] ? s->linesize : 0,
621 1, pix_op,
622 s->mv[dir][0][0], s->mv[dir][0][1], 8);
623 /* bottom field */
624 mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
625 ref_picture, s->field_select[dir][1] ? s->linesize : 0,
626 1, pix_op,
627 s->mv[dir][1][0], s->mv[dir][1][1], 8);
628 } else {
629
630
631 }
632 break;
633 }
634 }
635
636
637 /* put block[] to dest[] */
638 static inline void put_dct(MpegEncContext *s,
639 DCTELEM *block, int i, UINT8 *dest, int line_size)
640 {
641 if (!s->mpeg2)
642 s->dct_unquantize(s, block, i, s->qscale);
643 ff_idct (block);
644 put_pixels_clamped(block, dest, line_size);
645 }
646
647 /* add block[] to dest[] */
648 static inline void add_dct(MpegEncContext *s,
649 DCTELEM *block, int i, UINT8 *dest, int line_size)
650 {
651 if (s->block_last_index[i] >= 0) {
652 if (!s->mpeg2)
653 s->dct_unquantize(s, block, i, s->qscale);
654 ff_idct (block);
655 add_pixels_clamped(block, dest, line_size);
656 }
657 }
658
659 /* generic function called after a macroblock has been parsed by the
660 decoder or after it has been encoded by the encoder.
661
662 Important variables used:
663 s->mb_intra : true if intra macroblock
664 s->mv_dir : motion vector direction
665 s->mv_type : motion vector type
666 s->mv : motion vector
667 s->interlaced_dct : true if interlaced dct used (mpeg2)
668 */
669 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
670 {
671 int mb_x, mb_y, motion_x, motion_y;
672 int dct_linesize, dct_offset;
673 op_pixels_func *op_pix;
674
675 mb_x = s->mb_x;
676 mb_y = s->mb_y;
677
678 #ifdef FF_POSTPROCESS
679 quant_store[mb_y][mb_x]=s->qscale;
680 //printf("[%02d][%02d] %d\n",mb_x,mb_y,s->qscale);
681 #endif
682
683 /* update DC predictors for P macroblocks */
684 if (!s->mb_intra) {
685 if (s->h263_pred) {
686 int wrap, x, y, v;
687 wrap = 2 * s->mb_width + 2;
688 v = 1024;
689 x = 2 * mb_x + 1;
690 y = 2 * mb_y + 1;
691 s->dc_val[0][(x) + (y) * wrap] = v;
692 s->dc_val[0][(x + 1) + (y) * wrap] = v;
693 s->dc_val[0][(x) + (y + 1) * wrap] = v;
694 s->dc_val[0][(x + 1) + (y + 1) * wrap] = v;
695 /* ac pred */
696 memset(s->ac_val[0][(x) + (y) * wrap], 0, 16 * sizeof(INT16));
697 memset(s->ac_val[0][(x + 1) + (y) * wrap], 0, 16 * sizeof(INT16));
698 memset(s->ac_val[0][(x) + (y + 1) * wrap], 0, 16 * sizeof(INT16));
699 memset(s->ac_val[0][(x + 1) + (y + 1) * wrap], 0, 16 * sizeof(INT16));
700 if (s->h263_msmpeg4) {
701 s->coded_block[(x) + (y) * wrap] = 0;
702 s->coded_block[(x + 1) + (y) * wrap] = 0;
703 s->coded_block[(x) + (y + 1) * wrap] = 0;
704 s->coded_block[(x + 1) + (y + 1) * wrap] = 0;
705 }
706 /* chroma */
707 wrap = s->mb_width + 2;
708 x = mb_x + 1;
709 y = mb_y + 1;
710 s->dc_val[1][(x) + (y) * wrap] = v;
711 s->dc_val[2][(x) + (y) * wrap] = v;
712 /* ac pred */
713 memset(s->ac_val[1][(x) + (y) * wrap], 0, 16 * sizeof(INT16));
714 memset(s->ac_val[2][(x) + (y) * wrap], 0, 16 * sizeof(INT16));
715 } else {
716 s->last_dc[0] = 128 << s->intra_dc_precision;
717 s->last_dc[1] = 128 << s->intra_dc_precision;
718 s->last_dc[2] = 128 << s->intra_dc_precision;
719 }
720 }
721
722 /* update motion predictor */
723 if (s->out_format == FMT_H263) {
724 int x, y, wrap;
725
726 x = 2 * mb_x + 1;
727 y = 2 * mb_y + 1;
728 wrap = 2 * s->mb_width + 2;
729 if (s->mb_intra) {
730 motion_x = 0;
731 motion_y = 0;
732 goto motion_init;
733 } else if (s->mv_type == MV_TYPE_16X16) {
734 motion_x = s->mv[0][0][0];
735 motion_y = s->mv[0][0][1];
736 motion_init:
737 /* no update if 8X8 because it has been done during parsing */
738 s->motion_val[(x) + (y) * wrap][0] = motion_x;
739 s->motion_val[(x) + (y) * wrap][1] = motion_y;
740 s->motion_val[(x + 1) + (y) * wrap][0] = motion_x;
741 s->motion_val[(x + 1) + (y) * wrap][1] = motion_y;
742 s->motion_val[(x) + (y + 1) * wrap][0] = motion_x;
743 s->motion_val[(x) + (y + 1) * wrap][1] = motion_y;
744 s->motion_val[(x + 1) + (y + 1) * wrap][0] = motion_x;
745 s->motion_val[(x + 1) + (y + 1) * wrap][1] = motion_y;
746 }
747 }
748
749 if (!s->intra_only) {
750 UINT8 *dest_y, *dest_cb, *dest_cr;
751 UINT8 *mbskip_ptr;
752
753 /* avoid copy if macroblock skipped in last frame too */
754 if (!s->encoding && s->pict_type != B_TYPE) {
755 mbskip_ptr = &s->mbskip_table[s->mb_y * s->mb_width + s->mb_x];
756 if (s->mb_skiped) {
757 s->mb_skiped = 0;
758 /* if previous was skipped too, then nothing to do ! */
759 if (*mbskip_ptr != 0)
760 goto the_end;
761 *mbskip_ptr = 1; /* indicate that this time we skiped it */
762 } else {
763 *mbskip_ptr = 0; /* not skipped */
764 }
765 }
766
767 dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize) + mb_x * 16;
768 dest_cb = s->current_picture[1] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
769 dest_cr = s->current_picture[2] + (mb_y * 8 * (s->linesize >> 1)) + mb_x * 8;
770
771 if (s->interlaced_dct) {
772 dct_linesize = s->linesize * 2;
773 dct_offset = s->linesize;
774 } else {
775 dct_linesize = s->linesize;
776 dct_offset = s->linesize * 8;
777 }
778
779 if (!s->mb_intra) {
780 /* motion handling */
781 if (!s->no_rounding)
782 op_pix = put_pixels_tab;
783 else
784 op_pix = put_no_rnd_pixels_tab;
785
786 if (s->mv_dir & MV_DIR_FORWARD) {
787 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix);
788 if (!s->no_rounding)
789 op_pix = avg_pixels_tab;
790 else
791 op_pix = avg_no_rnd_pixels_tab;
792 }
793 if (s->mv_dir & MV_DIR_BACKWARD) {
794 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix);
795 }
796
797 /* add dct residue */
798 add_dct(s, block[0], 0, dest_y, dct_linesize);
799 add_dct(s, block[1], 1, dest_y + 8, dct_linesize);
800 add_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
801 add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
802
803 add_dct(s, block[4], 4, dest_cb, s->linesize >> 1);
804 add_dct(s, block[5], 5, dest_cr, s->linesize >> 1);
805 } else {
806 /* dct only in intra block */
807 put_dct(s, block[0], 0, dest_y, dct_linesize);
808 put_dct(s, block[1], 1, dest_y + 8, dct_linesize);
809 put_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
810 put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
811
812 put_dct(s, block[4], 4, dest_cb, s->linesize >> 1);
813 put_dct(s, block[5], 5, dest_cr, s->linesize >> 1);
814 }
815 }
816 the_end:
817 emms_c();
818 }
819
820 static void encode_picture(MpegEncContext *s, int picture_number)
821 {
822 int mb_x, mb_y, wrap;
823 UINT8 *ptr;
824 int i, motion_x, motion_y;
825
826 s->picture_number = picture_number;
827 if (!s->fixed_qscale)
828 s->qscale = rate_estimate_qscale(s);
829
830 /* precompute matrix */
831 if (s->out_format == FMT_MJPEG) {
832 /* for mjpeg, we do include qscale in the matrix */
833 s->intra_matrix[0] = default_intra_matrix[0];
834 for(i=1;i<64;i++)
835 s->intra_matrix[i] = (default_intra_matrix[i] * s->qscale) >> 3;
836 convert_matrix(s->q_intra_matrix, s->intra_matrix, 8);
837 } else {
838 convert_matrix(s->q_intra_matrix, s->intra_matrix, s->qscale);
839 convert_matrix(s->q_non_intra_matrix, s->non_intra_matrix, s->qscale);
840 }
841
842 switch(s->out_format) {
843 case FMT_MJPEG:
844 mjpeg_picture_header(s);
845 break;
846 case FMT_H263:
847 if (s->h263_msmpeg4)
848 msmpeg4_encode_picture_header(s, picture_number);
849 else if (s->h263_pred)
850 mpeg4_encode_picture_header(s, picture_number);
851 else if (s->h263_rv10)
852 rv10_encode_picture_header(s, picture_number);
853 else
854 h263_encode_picture_header(s, picture_number);
855 break;
856 case FMT_MPEG1:
857 mpeg1_encode_picture_header(s, picture_number);
858 break;
859 }
860
861 /* init last dc values */
862 /* note: quant matrix value (8) is implied here */
863 s->last_dc[0] = 128;
864 s->last_dc[1] = 128;
865 s->last_dc[2] = 128;
866 s->mb_incr = 1;
867 s->last_mv[0][0][0] = 0;
868 s->last_mv[0][0][1] = 0;
869 s->mv_type = MV_TYPE_16X16;
870 s->mv_dir = MV_DIR_FORWARD;
871
872 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
873 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
874
875 s->mb_x = mb_x;
876 s->mb_y = mb_y;
877
878 /* compute motion vector and macro block type (intra or non intra) */
879 motion_x = 0;
880 motion_y = 0;
881 if (s->pict_type == P_TYPE) {
882 s->mb_intra = estimate_motion(s, mb_x, mb_y,
883 &motion_x,
884 &motion_y);
885 } else {
886 s->mb_intra = 1;
887 }
888
889 /* get the pixels */
890 wrap = s->linesize;
891 ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
892 get_pixels(s->block[0], ptr, wrap);
893 get_pixels(s->block[1], ptr + 8, wrap);
894 get_pixels(s->block[2], ptr + 8 * wrap, wrap);
895 get_pixels(s->block[3], ptr + 8 * wrap + 8, wrap);
896 wrap = s->linesize >> 1;
897 ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
898 get_pixels(s->block[4], ptr, wrap);
899
900 wrap = s->linesize >> 1;
901 ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
902 get_pixels(s->block[5], ptr, wrap);
903
904 /* subtract previous frame if non intra */
905 if (!s->mb_intra) {
906 int dxy, offset, mx, my;
907
908 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
909 ptr = s->last_picture[0] +
910 ((mb_y * 16 + (motion_y >> 1)) * s->linesize) +
911 (mb_x * 16 + (motion_x >> 1));
912
913 sub_pixels_2(s->block[0], ptr, s->linesize, dxy);
914 sub_pixels_2(s->block[1], ptr + 8, s->linesize, dxy);
915 sub_pixels_2(s->block[2], ptr + s->linesize * 8, s->linesize, dxy);
916 sub_pixels_2(s->block[3], ptr + 8 + s->linesize * 8, s->linesize ,dxy);
917
918 if (s->out_format == FMT_H263) {
919 /* special rounding for 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 offset = ((mb_y * 8 + my) * (s->linesize >> 1)) + (mb_x * 8 + mx);
935 ptr = s->last_picture[1] + offset;
936 sub_pixels_2(s->block[4], ptr, s->linesize >> 1, dxy);
937 ptr = s->last_picture[2] + offset;
938 sub_pixels_2(s->block[5], ptr, s->linesize >> 1, dxy);
939 }
940 emms_c();
941
942 /* DCT & quantize */
943 if (s->h263_msmpeg4) {
944 msmpeg4_dc_scale(s);
945 } else if (s->h263_pred) {
946 h263_dc_scale(s);
947 } else {
948 /* default quantization values */
949 s->y_dc_scale = 8;
950 s->c_dc_scale = 8;
951 }
952
953 for(i=0;i<6;i++) {
954 int last_index;
955 if (av_fdct == jpeg_fdct_ifast)
956 last_index = dct_quantize(s, s->block[i], i, s->qscale);
957 else
958 last_index = dct_quantize_mmx(s, s->block[i], i, s->qscale);
959 s->block_last_index[i] = last_index;
960 }
961
962 /* huffman encode */
963 switch(s->out_format) {
964 case FMT_MPEG1:
965 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
966 break;
967 case FMT_H263:
968 if (s->h263_msmpeg4)
969 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
970 else
971 h263_encode_mb(s, s->block, motion_x, motion_y);
972 break;
973 case FMT_MJPEG:
974 mjpeg_encode_mb(s, s->block);
975 break;
976 }
977
978 /* decompress blocks so that we keep the state of the decoder */
979 s->mv[0][0][0] = motion_x;
980 s->mv[0][0][1] = motion_y;
981
982 MPV_decode_mb(s, s->block);
983 }
984 }
985 }
986
987 static int dct_quantize(MpegEncContext *s,
988 DCTELEM *block, int n,
989 int qscale)
990 {
991 int i, j, level, last_non_zero, q;
992 const int *qmat;
993
994 av_fdct (block);
995
996 /* we need this permutation so that we correct the IDCT
997 permutation. will be moved into DCT code */
998 block_permute(block);
999
1000 if (s->mb_intra) {
1001 if (n < 4)
1002 q = s->y_dc_scale;
1003 else
1004 q = s->c_dc_scale;
1005 q = q << 3;
1006
1007 /* note: block[0] is assumed to be positive */
1008 block[0] = (block[0] + (q >> 1)) / q;
1009 i = 1;
1010 last_non_zero = 0;
1011 if (s->out_format == FMT_H263) {
1012 qmat = s->q_non_intra_matrix;
1013 } else {
1014 qmat = s->q_intra_matrix;
1015 }
1016 } else {
1017 i = 0;
1018 last_non_zero = -1;
1019 qmat = s->q_non_intra_matrix;
1020 }
1021
1022 for(;i<64;i++) {
1023 j = zigzag_direct[i];
1024 level = block[j];
1025 level = level * qmat[j];
1026 #ifdef PARANOID
1027 {
1028 static int count = 0;
1029 int level1, level2, qmat1;
1030 double val;
1031 if (qmat == s->q_non_intra_matrix) {
1032 qmat1 = default_non_intra_matrix[j] * s->qscale;
1033 } else {
1034 qmat1 = default_intra_matrix[j] * s->qscale;
1035 }
1036 if (av_fdct != jpeg_fdct_ifast)
1037 val = ((double)block[j] * 8.0) / (double)qmat1;
1038 else
1039 val = ((double)block[j] * 8.0 * 2048.0) /
1040 ((double)qmat1 * aanscales[j]);
1041 level1 = (int)val;
1042 level2 = level / (1 << (QMAT_SHIFT - 3));
1043 if (level1 != level2) {
1044 fprintf(stderr, "%d: quant error qlevel=%d wanted=%d level=%d qmat1=%d qmat=%d wantedf=%0.6f\n",
1045 count, level2, level1, block[j], qmat1, qmat[j],
1046 val);
1047 count++;
1048 }
1049
1050 }
1051 #endif
1052 /* XXX: slight error for the low range. Test should be equivalent to
1053 (level <= -(1 << (QMAT_SHIFT - 3)) || level >= (1 <<
1054 (QMAT_SHIFT - 3)))
1055 */
1056 if (((level << (31 - (QMAT_SHIFT - 3))) >> (31 - (QMAT_SHIFT - 3))) !=
1057 level) {
1058 level = level / (1 << (QMAT_SHIFT - 3));
1059 /* XXX: currently, this code is not optimal. the range should be:
1060 mpeg1: -255..255
1061 mpeg2: -2048..2047
1062 h263: -128..127
1063 mpeg4: -2048..2047
1064 */
1065 if (level > 127)
1066 level = 127;
1067 else if (level < -128)
1068 level = -128;
1069 block[j] = level;
1070 last_non_zero = i;
1071 } else {
1072 block[j] = 0;
1073 }
1074 }
1075 return last_non_zero;
1076 }
1077
1078 static int dct_quantize_mmx(MpegEncContext *s,
1079 DCTELEM *block, int n,
1080 int qscale)
1081 {
1082 int i, j, level, last_non_zero, q;
1083 const int *qmat;
1084
1085 av_fdct (block);
1086
1087 /* we need this permutation so that we correct the IDCT
1088 permutation. will be moved into DCT code */
1089 block_permute(block);
1090
1091 if (s->mb_intra) {
1092 if (n < 4)
1093 q = s->y_dc_scale;
1094 else
1095 q = s->c_dc_scale;
1096
1097 /* note: block[0] is assumed to be positive */
1098 block[0] = (block[0] + (q >> 1)) / q;
1099 i = 1;
1100 last_non_zero = 0;
1101 if (s->out_format == FMT_H263) {
1102 qmat = s->q_non_intra_matrix;
1103 } else {
1104 qmat = s->q_intra_matrix;
1105 }
1106 } else {
1107 i = 0;
1108 last_non_zero = -1;
1109 qmat = s->q_non_intra_matrix;
1110 }
1111
1112 for(;i<64;i++) {
1113 j = zigzag_direct[i];
1114 level = block[j];
1115 level = level * qmat[j];
1116 /* XXX: slight error for the low range. Test should be equivalent to
1117 (level <= -(1 << (QMAT_SHIFT_MMX - 3)) || level >= (1 <<
1118 (QMAT_SHIFT_MMX - 3)))
1119 */
1120 if (((level << (31 - (QMAT_SHIFT_MMX - 3))) >> (31 - (QMAT_SHIFT_MMX - 3))) !=
1121 level) {
1122 level = level / (1 << (QMAT_SHIFT_MMX - 3));
1123 /* XXX: currently, this code is not optimal. the range should be:
1124 mpeg1: -255..255
1125 mpeg2: -2048..2047
1126 h263: -128..127
1127 mpeg4: -2048..2047
1128 */
1129 if (level > 127)
1130 level = 127;
1131 else if (level < -128)
1132 level = -128;
1133 block[j] = level;
1134 last_non_zero = i;
1135 } else {
1136 block[j] = 0;
1137 }
1138 }
1139 return last_non_zero;
1140 }
1141
1142 static void dct_unquantize_mpeg1_c(MpegEncContext *s,
1143 DCTELEM *block, int n, int qscale)
1144 {
1145 int i, level;
1146 const UINT16 *quant_matrix;
1147
1148 if (s->mb_intra) {
1149 if (n < 4)
1150 block[0] = block[0] * s->y_dc_scale;
1151 else
1152 block[0] = block[0] * s->c_dc_scale;
1153 /* XXX: only mpeg1 */
1154 quant_matrix = s->intra_matrix;
1155 for(i=1;i<64;i++) {
1156 level = block[i];
1157 if (level) {
1158 if (level < 0) {
1159 level = -level;
1160 level = (int)(level * qscale * quant_matrix[i]) >> 3;
1161 level = (level - 1) | 1;
1162 level = -level;
1163 } else {
1164 level = (int)(level * qscale * quant_matrix[i]) >> 3;
1165 level = (level - 1) | 1;
1166 }
1167 #ifdef PARANOID
1168 if (level < -2048 || level > 2047)
1169 fprintf(stderr, "unquant error %d %d\n", i, level);
1170 #endif
1171 block[i] = level;
1172 }
1173 }
1174 } else {
1175 i = 0;
1176 quant_matrix = s->non_intra_matrix;
1177 for(;i<64;i++) {
1178 level = block[i];
1179 if (level) {
1180 if (level < 0) {
1181 level = -level;
1182 level = (((level << 1) + 1) * qscale *
1183 ((int) (quant_matrix[i]))) >> 4;
1184 level = (level - 1) | 1;
1185 level = -level;
1186 } else {
1187 level = (((level << 1) + 1) * qscale *
1188 ((int) (quant_matrix[i]))) >> 4;
1189 level = (level - 1) | 1;
1190 }
1191 #ifdef PARANOID
1192 if (level < -2048 || level > 2047)
1193 fprintf(stderr, "unquant error %d %d\n", i, level);
1194 #endif
1195 block[i] = level;
1196 }
1197 }
1198 }
1199 }
1200
1201 static void dct_unquantize_h263_c(MpegEncContext *s,
1202 DCTELEM *block, int n, int qscale)
1203 {
1204 int i, level, qmul, qadd;
1205
1206 if (s->mb_intra) {
1207 if (n < 4)
1208 block[0] = block[0] * s->y_dc_scale;
1209 else
1210 block[0] = block[0] * s->c_dc_scale;
1211 i = 1;
1212 } else {
1213 i = 0;
1214 }
1215
1216 qmul = s->qscale << 1;
1217 qadd = (s->qscale - 1) | 1;
1218
1219 for(;i<64;i++) {
1220 level = block[i];
1221 if (level) {
1222 if (level < 0) {
1223 level = level * qmul - qadd;
1224 } else {
1225 level = level * qmul + qadd;
1226 }
1227 #ifdef PARANOID
1228 if (level < -2048 || level > 2047)
1229 fprintf(stderr, "unquant error %d %d\n", i, level);
1230 #endif
1231 block[i] = level;
1232 }
1233 }
1234 }
1235
1236 /* rate control */
1237
1238 /* an I frame is I_FRAME_SIZE_RATIO bigger than a P frame */
1239 #define I_FRAME_SIZE_RATIO 3.0
1240 #define QSCALE_K 20
1241
1242 static void rate_control_init(MpegEncContext *s)
1243 {
1244 s->wanted_bits = 0;
1245
1246 if (s->intra_only) {
1247 s->I_frame_bits = ((INT64)s->bit_rate * FRAME_RATE_BASE) / s->frame_rate;
1248 s->P_frame_bits = s->I_frame_bits;
1249 } else {
1250 s->P_frame_bits = (int) ((float)(s->gop_size * s->bit_rate) /
1251 (float)((float)s->frame_rate / FRAME_RATE_BASE * (I_FRAME_SIZE_RATIO + s->gop_size - 1)));
1252 s->I_frame_bits = (int)(s->P_frame_bits * I_FRAME_SIZE_RATIO);
1253 }
1254
1255 #if defined(DEBUG)
1256 printf("I_frame_size=%d P_frame_size=%d\n",
1257 s->I_frame_bits, s->P_frame_bits);
1258 #endif
1259 }
1260
1261
1262 /*
1263 * This heuristic is rather poor, but at least we do not have to
1264 * change the qscale at every macroblock.
1265 */
1266 static int rate_estimate_qscale(MpegEncContext *s)
1267 {
1268 INT64 total_bits = s->total_bits;
1269 float q;
1270 int qscale, diff, qmin;
1271
1272 if (s->pict_type == I_TYPE) {
1273 s->wanted_bits += s->I_frame_bits;
1274 } else {
1275 s->wanted_bits += s->P_frame_bits;
1276 }
1277 diff = s->wanted_bits - total_bits;
1278 q = 31.0 - (float)diff / (QSCALE_K * s->mb_height * s->mb_width);
1279 /* adjust for I frame */
1280 if (s->pict_type == I_TYPE && !s->intra_only) {
1281 q /= I_FRAME_SIZE_RATIO;
1282 }
1283
1284 /* using a too small Q scale leeds to problems in mpeg1 and h263
1285 because AC coefficients are clamped to 255 or 127 */
1286 qmin = 3;
1287 if (q < qmin)
1288 q = qmin;
1289 else if (q > 31)
1290 q = 31;
1291 qscale = (int)(q + 0.5);
1292 #if defined(DEBUG)
1293 printf("%d: total=%0.0f br=%0.1f diff=%d qest=%0.1f\n",
1294 s->picture_number,
1295 (double)total_bits,
1296 (float)s->frame_rate / FRAME_RATE_BASE *
1297 total_bits / s->picture_number,
1298 diff, q);
1299 #endif
1300 return qscale;
1301 }
1302
1303 AVCodec mpeg1video_encoder = {
1304 "mpeg1video",
1305 CODEC_TYPE_VIDEO,
1306 CODEC_ID_MPEG1VIDEO,
1307 sizeof(MpegEncContext),
1308 MPV_encode_init,
1309 MPV_encode_picture,
1310 MPV_encode_end,
1311 };
1312
1313 AVCodec h263_encoder = {
1314 "h263",
1315 CODEC_TYPE_VIDEO,
1316 CODEC_ID_H263,
1317 sizeof(MpegEncContext),
1318 MPV_encode_init,
1319 MPV_encode_picture,
1320 MPV_encode_end,
1321 };
1322
1323 AVCodec h263p_encoder = {
1324 "h263p",
1325 CODEC_TYPE_VIDEO,
1326 CODEC_ID_H263P,
1327 sizeof(MpegEncContext),
1328 MPV_encode_init,
1329 MPV_encode_picture,
1330 MPV_encode_end,
1331 };
1332
1333 AVCodec rv10_encoder = {
1334 "rv10",
1335 CODEC_TYPE_VIDEO,
1336 CODEC_ID_RV10,
1337 sizeof(MpegEncContext),
1338 MPV_encode_init,
1339 MPV_encode_picture,
1340 MPV_encode_end,
1341 };
1342
1343 AVCodec mjpeg_encoder = {
1344 "mjpeg",
1345 CODEC_TYPE_VIDEO,
1346 CODEC_ID_MJPEG,
1347 sizeof(MpegEncContext),
1348 MPV_encode_init,
1349 MPV_encode_picture,
1350 MPV_encode_end,
1351 };
1352
1353 AVCodec mpeg4_encoder = {
1354 "mpeg4",
1355 CODEC_TYPE_VIDEO,
1356 CODEC_ID_MPEG4,
1357 sizeof(MpegEncContext),
1358 MPV_encode_init,
1359 MPV_encode_picture,
1360 MPV_encode_end,
1361 };
1362
1363 AVCodec msmpeg4_encoder = {
1364 "msmpeg4",
1365 CODEC_TYPE_VIDEO,
1366 CODEC_ID_MSMPEG4,
1367 sizeof(MpegEncContext),
1368 MPV_encode_init,
1369 MPV_encode_picture,
1370 MPV_encode_end,
1371 };