1 /*
2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard.
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 /**
26 * @file mpegvideo_enc.c
27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
30 #include "avcodec.h"
31 #include "dsputil.h"
32 #include "mpegvideo.h"
33 #include "mpegvideo_common.h"
34 #include "mjpegenc.h"
35 #include "msmpeg4.h"
36 #include "h263.h"
37 #include "faandct.h"
38 #include <limits.h>
39
40 //#undef NDEBUG
41 //#include <assert.h>
42
43 static int encode_picture(MpegEncContext *s, int picture_number);
44 static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
45 static int sse_mb(MpegEncContext *s);
46
47 /* enable all paranoid tests for rounding, overflows, etc... */
48 //#define PARANOID
49
50 //#define DEBUG
51
52 static const uint16_t 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 const uint16_t inv_aanscales[64] = {
65 4096, 2953, 3135, 3483, 4096, 5213, 7568, 14846,
66 2953, 2129, 2260, 2511, 2953, 3759, 5457, 10703,
67 3135, 2260, 2399, 2666, 3135, 3990, 5793, 11363,
68 3483, 2511, 2666, 2962, 3483, 4433, 6436, 12625,
69 4096, 2953, 3135, 3483, 4096, 5213, 7568, 14846,
70 5213, 3759, 3990, 4433, 5213, 6635, 9633, 18895,
71 7568, 5457, 5793, 6436, 7568, 9633, 13985, 27432,
72 14846, 10703, 11363, 12625, 14846, 18895, 27432, 53809,
73 };
74
75 static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
76 static uint8_t default_fcode_tab[MAX_MV*2+1];
77
ff_convert_matrix(DSPContext * dsp,int (* qmat)[64],uint16_t (* qmat16)[2][64],const uint16_t * quant_matrix,int bias,int qmin,int qmax,int intra)78 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
79 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
80 {
81 int qscale;
82 int shift=0;
83
84 for(qscale=qmin; qscale<=qmax; qscale++){
85 int i;
86 if (dsp->fdct == ff_jpeg_fdct_islow
87 #ifdef FAAN_POSTSCALE
88 || dsp->fdct == ff_faandct
89 #endif
90 ) {
91 for(i=0;i<64;i++) {
92 const int j= dsp->idct_permutation[i];
93 /* 16 <= qscale * quant_matrix[i] <= 7905 */
94 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
95 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
96 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
97
98 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
99 (qscale * quant_matrix[j]));
100 }
101 } else if (dsp->fdct == fdct_ifast
102 #ifndef FAAN_POSTSCALE
103 || dsp->fdct == ff_faandct
104 #endif
105 ) {
106 for(i=0;i<64;i++) {
107 const int j= dsp->idct_permutation[i];
108 /* 16 <= qscale * quant_matrix[i] <= 7905 */
109 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
110 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
111 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
112
113 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
114 (aanscales[i] * qscale * quant_matrix[j]));
115 }
116 } else {
117 for(i=0;i<64;i++) {
118 const int j= dsp->idct_permutation[i];
119 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
120 So 16 <= qscale * quant_matrix[i] <= 7905
121 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
122 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
123 */
124 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
125 // qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
126 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
127
128 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
129 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
130 }
131 }
132
133 for(i=intra; i<64; i++){
134 int64_t max= 8191;
135 if (dsp->fdct == fdct_ifast
136 #ifndef FAAN_POSTSCALE
137 || dsp->fdct == ff_faandct
138 #endif
139 ) {
140 max= (8191LL*aanscales[i]) >> 14;
141 }
142 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
143 shift++;
144 }
145 }
146 }
147 if(shift){
148 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
149 }
150 }
151
update_qscale(MpegEncContext * s)152 static inline void update_qscale(MpegEncContext *s){
153 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
154 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
155
156 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
157 }
158
ff_write_quant_matrix(PutBitContext * pb,uint16_t * matrix)159 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
160 int i;
161
162 if(matrix){
163 put_bits(pb, 1, 1);
164 for(i=0;i<64;i++) {
165 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
166 }
167 }else
168 put_bits(pb, 1, 0);
169 }
170
copy_picture_attributes(MpegEncContext * s,AVFrame * dst,AVFrame * src)171 static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
172 int i;
173
174 dst->pict_type = src->pict_type;
175 dst->quality = src->quality;
176 dst->coded_picture_number = src->coded_picture_number;
177 dst->display_picture_number = src->display_picture_number;
178 // dst->reference = src->reference;
179 dst->pts = src->pts;
180 dst->interlaced_frame = src->interlaced_frame;
181 dst->top_field_first = src->top_field_first;
182
183 if(s->avctx->me_threshold){
184 if(!src->motion_val[0])
185 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
186 if(!src->mb_type)
187 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
188 if(!src->ref_index[0])
189 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
190 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
191 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
192 src->motion_subsample_log2, dst->motion_subsample_log2);
193
194 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
195
196 for(i=0; i<2; i++){
197 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
198 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
199
200 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
201 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
202 }
203 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
204 memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
205 }
206 }
207 }
208 }
209
update_duplicate_context_after_me(MpegEncContext * dst,MpegEncContext * src)210 static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
211 #define COPY(a) dst->a= src->a
212 COPY(pict_type);
213 COPY(current_picture);
214 COPY(f_code);
215 COPY(b_code);
216 COPY(qscale);
217 COPY(lambda);
218 COPY(lambda2);
219 COPY(picture_in_gop_number);
220 COPY(gop_picture_number);
221 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
222 COPY(progressive_frame); //FIXME don't set in encode_header
223 COPY(partitioned_frame); //FIXME don't set in encode_header
224 #undef COPY
225 }
226
227 /**
228 * sets the given MpegEncContext to defaults for encoding.
229 * the changed fields will not depend upon the prior state of the MpegEncContext.
230 */
MPV_encode_defaults(MpegEncContext * s)231 static void MPV_encode_defaults(MpegEncContext *s){
232 int i;
233 MPV_common_defaults(s);
234
235 for(i=-16; i<16; i++){
236 default_fcode_tab[i + MAX_MV]= 1;
237 }
238 s->me.mv_penalty= default_mv_penalty;
239 s->fcode_tab= default_fcode_tab;
240 }
241
242 /* init video encoder */
MPV_encode_init(AVCodecContext * avctx)243 av_cold int MPV_encode_init(AVCodecContext *avctx)
244 {
245 MpegEncContext *s = avctx->priv_data;
246 int i;
247 int chroma_h_shift, chroma_v_shift;
248
249 MPV_encode_defaults(s);
250
251 switch (avctx->codec_id) {
252 case CODEC_ID_MPEG2VIDEO:
253 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
254 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
255 return -1;
256 }
257 break;
258 case CODEC_ID_LJPEG:
259 case CODEC_ID_MJPEG:
260 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
261 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
262 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
263 return -1;
264 }
265 break;
266 default:
267 if(avctx->pix_fmt != PIX_FMT_YUV420P){
268 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
269 return -1;
270 }
271 }
272
273 switch (avctx->pix_fmt) {
274 case PIX_FMT_YUVJ422P:
275 case PIX_FMT_YUV422P:
276 s->chroma_format = CHROMA_422;
277 break;
278 case PIX_FMT_YUVJ420P:
279 case PIX_FMT_YUV420P:
280 default:
281 s->chroma_format = CHROMA_420;
282 break;
283 }
284
285 s->bit_rate = avctx->bit_rate;
286 s->width = avctx->width;
287 s->height = avctx->height;
288 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
289 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
290 avctx->gop_size=600;
291 }
292 s->gop_size = avctx->gop_size;
293 s->avctx = avctx;
294 s->flags= avctx->flags;
295 s->flags2= avctx->flags2;
296 s->max_b_frames= avctx->max_b_frames;
297 s->codec_id= avctx->codec->id;
298 s->luma_elim_threshold = avctx->luma_elim_threshold;
299 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
300 s->strict_std_compliance= avctx->strict_std_compliance;
301 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
302 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
303 s->mpeg_quant= avctx->mpeg_quant;
304 s->rtp_mode= !!avctx->rtp_payload_size;
305 s->intra_dc_precision= avctx->intra_dc_precision;
306 s->user_specified_pts = AV_NOPTS_VALUE;
307
308 if (s->gop_size <= 1) {
309 s->intra_only = 1;
310 s->gop_size = 12;
311 } else {
312 s->intra_only = 0;
313 }
314
315 s->me_method = avctx->me_method;
316
317 /* Fixed QSCALE */
318 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
319
320 s->adaptive_quant= ( s->avctx->lumi_masking
321 || s->avctx->dark_masking
322 || s->avctx->temporal_cplx_masking
323 || s->avctx->spatial_cplx_masking
324 || s->avctx->p_masking
325 || s->avctx->border_masking
326 || (s->flags&CODEC_FLAG_QP_RD))
327 && !s->fixed_qscale;
328
329 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
330 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
331 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
332 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
333 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
334
335 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
336 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
337 return -1;
338 }
339
340 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
341 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
342 }
343
344 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
345 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
346 return -1;
347 }
348
349 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
350 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
351 return -1;
352 }
353
354 if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
355 av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
356 }
357
358 if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
359 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
360 return -1;
361 }
362
363 if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
364 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
365 return -1;
366 }
367
368 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
369 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
370 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
371
372 av_log(avctx, AV_LOG_INFO, "Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!\n");
373 }
374
375 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
376 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
377 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
378 return -1;
379 }
380
381 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
382 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
383 return -1;
384 }
385
386 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
387 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
388 return -1;
389 }
390
391 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
392 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
393 return -1;
394 }
395
396 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
397 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
398 return -1;
399 }
400
401 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
402 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
403 return -1;
404 }
405
406 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
407 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
408 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
409 return -1;
410 }
411
412 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
413 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
414 return -1;
415 }
416
417 if((s->flags & CODEC_FLAG_CBP_RD) && !(s->flags & CODEC_FLAG_TRELLIS_QUANT)){
418 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
419 return -1;
420 }
421
422 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
423 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
424 return -1;
425 }
426
427 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
428 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
429 return -1;
430 }
431
432 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
433 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
434 return -1;
435 }
436
437 if(s->flags & CODEC_FLAG_LOW_DELAY){
438 if (s->codec_id != CODEC_ID_MPEG2VIDEO && s->codec_id != CODEC_ID_MPEG1VIDEO){
439 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg1/2\n");
440 return -1;
441 }
442 if (s->max_b_frames != 0){
443 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
444 return -1;
445 }
446 }
447
448 if(s->q_scale_type == 1){
449 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
450 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
451 return -1;
452 }
453 if(avctx->qmax > 12){
454 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
455 return -1;
456 }
457 }
458
459 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
460 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
461 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
462 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
463 return -1;
464 }
465
466 if(s->avctx->thread_count > 1)
467 s->rtp_mode= 1;
468
469 if(!avctx->time_base.den || !avctx->time_base.num){
470 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
471 return -1;
472 }
473
474 i= (INT_MAX/2+128)>>8;
475 if(avctx->me_threshold >= i){
476 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
477 return -1;
478 }
479 if(avctx->mb_threshold >= i){
480 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
481 return -1;
482 }
483
484 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
485 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
486 avctx->b_frame_strategy = 0;
487 }
488
489 i= ff_gcd(avctx->time_base.den, avctx->time_base.num);
490 if(i > 1){
491 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
492 avctx->time_base.den /= i;
493 avctx->time_base.num /= i;
494 // return -1;
495 }
496
497 if(s->codec_id==CODEC_ID_MJPEG){
498 s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
499 s->inter_quant_bias= 0;
500 }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
501 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
502 s->inter_quant_bias= 0;
503 }else{
504 s->intra_quant_bias=0;
505 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
506 }
507
508 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
509 s->intra_quant_bias= avctx->intra_quant_bias;
510 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
511 s->inter_quant_bias= avctx->inter_quant_bias;
512
513 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
514
515 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
516 av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
517 return -1;
518 }
519 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
520
521 switch(avctx->codec->id) {
522 case CODEC_ID_MPEG1VIDEO:
523 s->out_format = FMT_MPEG1;
524 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
525 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
526 break;
527 case CODEC_ID_MPEG2VIDEO:
528 s->out_format = FMT_MPEG1;
529 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
530 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
531 s->rtp_mode= 1;
532 break;
533 case CODEC_ID_LJPEG:
534 case CODEC_ID_MJPEG:
535 s->out_format = FMT_MJPEG;
536 s->intra_only = 1; /* force intra only for jpeg */
537 s->mjpeg_vsample[0] = 2;
538 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
539 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
540 s->mjpeg_hsample[0] = 2;
541 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
542 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
543 if (!(ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER)
544 || ff_mjpeg_encode_init(s) < 0)
545 return -1;
546 avctx->delay=0;
547 s->low_delay=1;
548 break;
549 case CODEC_ID_H261:
550 if (!ENABLE_H261_ENCODER) return -1;
551 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
552 av_log(avctx, AV_LOG_ERROR, "The specified picture size of %dx%d is not valid for the H.261 codec.\nValid sizes are 176x144, 352x288\n", s->width, s->height);
553 return -1;
554 }
555 s->out_format = FMT_H261;
556 avctx->delay=0;
557 s->low_delay=1;
558 break;
559 case CODEC_ID_H263:
560 if (!ENABLE_H263_ENCODER) return -1;
561 if (h263_get_picture_format(s->width, s->height) == 7) {
562 av_log(avctx, AV_LOG_INFO, "The specified picture size of %dx%d is not valid for the H.263 codec.\nValid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152. Try H.263+.\n", s->width, s->height);
563 return -1;
564 }
565 s->out_format = FMT_H263;
566 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
567 avctx->delay=0;
568 s->low_delay=1;
569 break;
570 case CODEC_ID_H263P:
571 s->out_format = FMT_H263;
572 s->h263_plus = 1;
573 /* Fx */
574 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
575 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
576 s->modified_quant= s->h263_aic;
577 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
578 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
579 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
580 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
581 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
582
583 /* /Fx */
584 /* These are just to be sure */
585 avctx->delay=0;
586 s->low_delay=1;
587 break;
588 case CODEC_ID_FLV1:
589 s->out_format = FMT_H263;
590 s->h263_flv = 2; /* format = 1; 11-bit codes */
591 s->unrestricted_mv = 1;
592 s->rtp_mode=0; /* don't allow GOB */
593 avctx->delay=0;
594 s->low_delay=1;
595 break;
596 case CODEC_ID_RV10:
597 s->out_format = FMT_H263;
598 avctx->delay=0;
599 s->low_delay=1;
600 break;
601 case CODEC_ID_RV20:
602 s->out_format = FMT_H263;
603 avctx->delay=0;
604 s->low_delay=1;
605 s->modified_quant=1;
606 s->h263_aic=1;
607 s->h263_plus=1;
608 s->loop_filter=1;
609 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
610 break;
611 case CODEC_ID_MPEG4:
612 s->out_format = FMT_H263;
613 s->h263_pred = 1;
614 s->unrestricted_mv = 1;
615 s->low_delay= s->max_b_frames ? 0 : 1;
616 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
617 break;
618 case CODEC_ID_MSMPEG4V1:
619 s->out_format = FMT_H263;
620 s->h263_msmpeg4 = 1;
621 s->h263_pred = 1;
622 s->unrestricted_mv = 1;
623 s->msmpeg4_version= 1;
624 avctx->delay=0;
625 s->low_delay=1;
626 break;
627 case CODEC_ID_MSMPEG4V2:
628 s->out_format = FMT_H263;
629 s->h263_msmpeg4 = 1;
630 s->h263_pred = 1;
631 s->unrestricted_mv = 1;
632 s->msmpeg4_version= 2;
633 avctx->delay=0;
634 s->low_delay=1;
635 break;
636 case CODEC_ID_MSMPEG4V3:
637 s->out_format = FMT_H263;
638 s->h263_msmpeg4 = 1;
639 s->h263_pred = 1;
640 s->unrestricted_mv = 1;
641 s->msmpeg4_version= 3;
642 s->flipflop_rounding=1;
643 avctx->delay=0;
644 s->low_delay=1;
645 break;
646 case CODEC_ID_WMV1:
647 s->out_format = FMT_H263;
648 s->h263_msmpeg4 = 1;
649 s->h263_pred = 1;
650 s->unrestricted_mv = 1;
651 s->msmpeg4_version= 4;
652 s->flipflop_rounding=1;
653 avctx->delay=0;
654 s->low_delay=1;
655 break;
656 case CODEC_ID_WMV2:
657 s->out_format = FMT_H263;
658 s->h263_msmpeg4 = 1;
659 s->h263_pred = 1;
660 s->unrestricted_mv = 1;
661 s->msmpeg4_version= 5;
662 s->flipflop_rounding=1;
663 avctx->delay=0;
664 s->low_delay=1;
665 break;
666 default:
667 return -1;
668 }
669
670 avctx->has_b_frames= !s->low_delay;
671
672 s->encoding = 1;
673
674 /* init */
675 if (MPV_common_init(s) < 0)
676 return -1;
677
678 if(!s->dct_quantize)
679 s->dct_quantize = dct_quantize_c;
680 if(!s->denoise_dct)
681 s->denoise_dct = denoise_dct_c;
682 s->fast_dct_quantize = s->dct_quantize;
683 if(s->flags & CODEC_FLAG_TRELLIS_QUANT)
684 s->dct_quantize = dct_quantize_trellis_c;
685
686 if((ENABLE_H263P_ENCODER || ENABLE_RV20_ENCODER) && s->modified_quant)
687 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
688 s->progressive_frame=
689 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
690 s->quant_precision=5;
691
692 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
693 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
694
695 if (ENABLE_H261_ENCODER && s->out_format == FMT_H261)
696 ff_h261_encode_init(s);
697 if (ENABLE_ANY_H263_ENCODER && s->out_format == FMT_H263)
698 h263_encode_init(s);
699 if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version)
700 ff_msmpeg4_encode_init(s);
701 if ((ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
702 && s->out_format == FMT_MPEG1)
703 ff_mpeg1_encode_init(s);
704
705 /* init q matrix */
706 for(i=0;i<64;i++) {
707 int j= s->dsp.idct_permutation[i];
708 if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
709 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
710 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
711 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
712 s->intra_matrix[j] =
713 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
714 }else
715 { /* mpeg1/2 */
716 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
717 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
718 }
719 if(s->avctx->intra_matrix)
720 s->intra_matrix[j] = s->avctx->intra_matrix[i];
721 if(s->avctx->inter_matrix)
722 s->inter_matrix[j] = s->avctx->inter_matrix[i];
723 }
724
725 /* precompute matrix */
726 /* for mjpeg, we do include qscale in the matrix */
727 if (s->out_format != FMT_MJPEG) {
728 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
729 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
730 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
731 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
732 }
733
734 if(ff_rate_control_init(s) < 0)
735 return -1;
736
737 return 0;
738 }
739
MPV_encode_end(AVCodecContext * avctx)740 av_cold int MPV_encode_end(AVCodecContext *avctx)
741 {
742 MpegEncContext *s = avctx->priv_data;
743
744 ff_rate_control_uninit(s);
745
746 MPV_common_end(s);
747 if ((ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
748 ff_mjpeg_encode_close(s);
749
750 av_freep(&avctx->extradata);
751
752 return 0;
753 }
754
get_sae(uint8_t * src,int ref,int stride)755 static int get_sae(uint8_t *src, int ref, int stride){
756 int x,y;
757 int acc=0;
758
759 for(y=0; y<16; y++){
760 for(x=0; x<16; x++){
761 acc+= FFABS(src[x+y*stride] - ref);
762 }
763 }
764
765 return acc;
766 }
767
get_intra_count(MpegEncContext * s,uint8_t * src,uint8_t * ref,int stride)768 static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
769 int x, y, w, h;
770 int acc=0;
771
772 w= s->width &~15;
773 h= s->height&~15;
774
775 for(y=0; y<h; y+=16){
776 for(x=0; x<w; x+=16){
777 int offset= x + y*stride;
778 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
779 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
780 int sae = get_sae(src + offset, mean, stride);
781
782 acc+= sae + 500 < sad;
783 }
784 }
785 return acc;
786 }
787
788
load_input_picture(MpegEncContext * s,AVFrame * pic_arg)789 static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
790 AVFrame *pic=NULL;
791 int64_t pts;
792 int i;
793 const int encoding_delay= s->max_b_frames;
794 int direct=1;
795
796 if(pic_arg){
797 pts= pic_arg->pts;
798 pic_arg->display_picture_number= s->input_picture_number++;
799
800 if(pts != AV_NOPTS_VALUE){
801 if(s->user_specified_pts != AV_NOPTS_VALUE){
802 int64_t time= pts;
803 int64_t last= s->user_specified_pts;
804
805 if(time <= last){
806 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
807 return -1;
808 }
809 }
810 s->user_specified_pts= pts;
811 }else{
812 if(s->user_specified_pts != AV_NOPTS_VALUE){
813 s->user_specified_pts=
814 pts= s->user_specified_pts + 1;
815 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
816 }else{
817 pts= pic_arg->display_picture_number;
818 }
819 }
820 }
821
822 if(pic_arg){
823 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
824 if(pic_arg->linesize[0] != s->linesize) direct=0;
825 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
826 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
827
828 // av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
829
830 if(direct){
831 i= ff_find_unused_picture(s, 1);
832
833 pic= (AVFrame*)&s->picture[i];
834 pic->reference= 3;
835
836 for(i=0; i<4; i++){
837 pic->data[i]= pic_arg->data[i];
838 pic->linesize[i]= pic_arg->linesize[i];
839 }
840 alloc_picture(s, (Picture*)pic, 1);
841 }else{
842 i= ff_find_unused_picture(s, 0);
843
844 pic= (AVFrame*)&s->picture[i];
845 pic->reference= 3;
846
847 alloc_picture(s, (Picture*)pic, 0);
848
849 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
850 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
851 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
852 // empty
853 }else{
854 int h_chroma_shift, v_chroma_shift;
855 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
856
857 for(i=0; i<3; i++){
858 int src_stride= pic_arg->linesize[i];
859 int dst_stride= i ? s->uvlinesize : s->linesize;
860 int h_shift= i ? h_chroma_shift : 0;
861 int v_shift= i ? v_chroma_shift : 0;
862 int w= s->width >>h_shift;
863 int h= s->height>>v_shift;
864 uint8_t *src= pic_arg->data[i];
865 uint8_t *dst= pic->data[i];
866
867 if(!s->avctx->rc_buffer_size)
868 dst +=INPLACE_OFFSET;
869
870 if(src_stride==dst_stride)
871 memcpy(dst, src, src_stride*h);
872 else{
873 while(h--){
874 memcpy(dst, src, w);
875 dst += dst_stride;
876 src += src_stride;
877 }
878 }
879 }
880 }
881 }
882 copy_picture_attributes(s, pic, pic_arg);
883 pic->pts= pts; //we set this here to avoid modifiying pic_arg
884 }
885
886 /* shift buffer entries */
887 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
888 s->input_picture[i-1]= s->input_picture[i];
889
890 s->input_picture[encoding_delay]= (Picture*)pic;
891
892 return 0;
893 }
894
skip_check(MpegEncContext * s,Picture * p,Picture * ref)895 static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
896 int x, y, plane;
897 int score=0;
898 int64_t score64=0;
899
900 for(plane=0; plane<3; plane++){
901 const int stride= p->linesize[plane];
902 const int bw= plane ? 1 : 2;
903 for(y=0; y<s->mb_height*bw; y++){
904 for(x=0; x<s->mb_width*bw; x++){
905 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
906 int v= s->dsp.frame_skip_cmp[1](s, p->data[plane] + 8*(x + y*stride)+off, ref->data[plane] + 8*(x + y*stride), stride, 8);
907
908 switch(s->avctx->frame_skip_exp){
909 case 0: score= FFMAX(score, v); break;
910 case 1: score+= FFABS(v);break;
911 case 2: score+= v*v;break;
912 case 3: score64+= FFABS(v*v*(int64_t)v);break;
913 case 4: score64+= v*v*(int64_t)(v*v);break;
914 }
915 }
916 }
917 }
918
919 if(score) score64= score;
920
921 if(score64 < s->avctx->frame_skip_threshold)
922 return 1;
923 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
924 return 1;
925 return 0;
926 }
927
estimate_best_b_count(MpegEncContext * s)928 static int estimate_best_b_count(MpegEncContext *s){
929 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
930 AVCodecContext *c= avcodec_alloc_context();
931 AVFrame input[FF_MAX_B_FRAMES+2];
932 const int scale= s->avctx->brd_scale;
933 int i, j, out_size, p_lambda, b_lambda, lambda2;
934 int outbuf_size= s->width * s->height; //FIXME
935 uint8_t *outbuf= av_malloc(outbuf_size);
936 int64_t best_rd= INT64_MAX;
937 int best_b_count= -1;
938
939 assert(scale>=0 && scale <=3);
940
941 // emms_c();
942 p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
943 b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
944 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
945 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
946
947 c->width = s->width >> scale;
948 c->height= s->height>> scale;
949 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
950 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
951 c->mb_decision= s->avctx->mb_decision;
952 c->me_cmp= s->avctx->me_cmp;
953 c->mb_cmp= s->avctx->mb_cmp;
954 c->me_sub_cmp= s->avctx->me_sub_cmp;
955 c->pix_fmt = PIX_FMT_YUV420P;
956 c->time_base= s->avctx->time_base;
957 c->max_b_frames= s->max_b_frames;
958
959 if (avcodec_open(c, codec) < 0)
960 return -1;
961
962 for(i=0; i<s->max_b_frames+2; i++){
963 int ysize= c->width*c->height;
964 int csize= (c->width/2)*(c->height/2);
965 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
966
967 avcodec_get_frame_defaults(&input[i]);
968 input[i].data[0]= av_malloc(ysize + 2*csize);
969 input[i].data[1]= input[i].data[0] + ysize;
970 input[i].data[2]= input[i].data[1] + csize;
971 input[i].linesize[0]= c->width;
972 input[i].linesize[1]=
973 input[i].linesize[2]= c->width/2;
974
975 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
976 pre_input= *pre_input_ptr;
977
978 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
979 pre_input.data[0]+=INPLACE_OFFSET;
980 pre_input.data[1]+=INPLACE_OFFSET;
981 pre_input.data[2]+=INPLACE_OFFSET;
982 }
983
984 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
985 s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.data[1], pre_input.linesize[1], c->width>>1, c->height>>1);
986 s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.data[2], pre_input.linesize[2], c->width>>1, c->height>>1);
987 }
988 }
989
990 for(j=0; j<s->max_b_frames+1; j++){
991 int64_t rd=0;
992
993 if(!s->input_picture[j])
994 break;
995
996 c->error[0]= c->error[1]= c->error[2]= 0;
997
998 input[0].pict_type= FF_I_TYPE;
999 input[0].quality= 1 * FF_QP2LAMBDA;
1000 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1001 // rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1002
1003 for(i=0; i<s->max_b_frames+1; i++){
1004 int is_p= i % (j+1) == j || i==s->max_b_frames;
1005
1006 input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
1007 input[i+1].quality= is_p ? p_lambda : b_lambda;
1008 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1009 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1010 }
1011
1012 /* get the delayed frames */
1013 while(out_size){
1014 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1015 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1016 }
1017
1018 rd += c->error[0] + c->error[1] + c->error[2];
1019
1020 if(rd < best_rd){
1021 best_rd= rd;
1022 best_b_count= j;
1023 }
1024 }
1025
1026 av_freep(&outbuf);
1027 avcodec_close(c);
1028 av_freep(&c);
1029
1030 for(i=0; i<s->max_b_frames+2; i++){
1031 av_freep(&input[i].data[0]);
1032 }
1033
1034 return best_b_count;
1035 }
1036
select_input_picture(MpegEncContext * s)1037 static void select_input_picture(MpegEncContext *s){
1038 int i;
1039
1040 for(i=1; i<MAX_PICTURE_COUNT; i++)
1041 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1042 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1043
1044 /* set next picture type & ordering */
1045 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1046 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1047 s->reordered_input_picture[0]= s->input_picture[0];
1048 s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
1049 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1050 }else{
1051 int b_frames;
1052
1053 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1054 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1055 //FIXME check that te gop check above is +-1 correct
1056 //av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1057
1058 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1059 for(i=0; i<4; i++)
1060 s->input_picture[0]->data[i]= NULL;
1061 s->input_picture[0]->type= 0;
1062 }else{
1063 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1064 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1065
1066 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1067 }
1068
1069 emms_c();
1070 ff_vbv_update(s, 0);
1071
1072 goto no_output_pic;
1073 }
1074 }
1075
1076 if(s->flags&CODEC_FLAG_PASS2){
1077 for(i=0; i<s->max_b_frames+1; i++){
1078 int pict_num= s->input_picture[0]->display_picture_number + i;
1079
1080 if(pict_num >= s->rc_context.num_entries)
1081 break;
1082 if(!s->input_picture[i]){
1083 s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
1084 break;
1085 }
1086
1087 s->input_picture[i]->pict_type=
1088 s->rc_context.entry[pict_num].new_pict_type;
1089 }
1090 }
1091
1092 if(s->avctx->b_frame_strategy==0){
1093 b_frames= s->max_b_frames;
1094 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1095 }else if(s->avctx->b_frame_strategy==1){
1096 for(i=1; i<s->max_b_frames+1; i++){
1097 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1098 s->input_picture[i]->b_frame_score=
1099 get_intra_count(s, s->input_picture[i ]->data[0],
1100 s->input_picture[i-1]->data[0], s->linesize) + 1;
1101 }
1102 }
1103 for(i=0; i<s->max_b_frames+1; i++){
1104 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1105 }
1106
1107 b_frames= FFMAX(0, i-1);
1108
1109 /* reset scores */
1110 for(i=0; i<b_frames+1; i++){
1111 s->input_picture[i]->b_frame_score=0;
1112 }
1113 }else if(s->avctx->b_frame_strategy==2){
1114 b_frames= estimate_best_b_count(s);
1115 }else{
1116 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1117 b_frames=0;
1118 }
1119
1120 emms_c();
1121 //static int b_count=0;
1122 //b_count+= b_frames;
1123 //av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1124
1125 for(i= b_frames - 1; i>=0; i--){
1126 int type= s->input_picture[i]->pict_type;
1127 if(type && type != FF_B_TYPE)
1128 b_frames= i;
1129 }
1130 if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
1131 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1132 }
1133
1134 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1135 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1136 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1137 }else{
1138 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1139 b_frames=0;
1140 s->input_picture[b_frames]->pict_type= FF_I_TYPE;
1141 }
1142 }
1143
1144 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1145 && b_frames
1146 && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
1147 b_frames--;
1148
1149 s->reordered_input_picture[0]= s->input_picture[b_frames];
1150 if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1151 s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
1152 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1153 for(i=0; i<b_frames; i++){
1154 s->reordered_input_picture[i+1]= s->input_picture[i];
1155 s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
1156 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1157 }
1158 }
1159 }
1160 no_output_pic:
1161 if(s->reordered_input_picture[0]){
1162 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
1163
1164 copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1165
1166 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1167 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1168
1169 int i= ff_find_unused_picture(s, 0);
1170 Picture *pic= &s->picture[i];
1171
1172 pic->reference = s->reordered_input_picture[0]->reference;
1173 alloc_picture(s, pic, 0);
1174
1175 /* mark us unused / free shared pic */
1176 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1177 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1178 for(i=0; i<4; i++)
1179 s->reordered_input_picture[0]->data[i]= NULL;
1180 s->reordered_input_picture[0]->type= 0;
1181
1182 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1183
1184 s->current_picture_ptr= pic;
1185 }else{
1186 // input is not a shared pix -> reuse buffer for current_pix
1187
1188 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1189 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1190
1191 s->current_picture_ptr= s->reordered_input_picture[0];
1192 for(i=0; i<4; i++){
1193 s->new_picture.data[i]+= INPLACE_OFFSET;
1194 }
1195 }
1196 copy_picture(&s->current_picture, s->current_picture_ptr);
1197
1198 s->picture_number= s->new_picture.display_picture_number;
1199 //printf("dpn:%d\n", s->picture_number);
1200 }else{
1201 memset(&s->new_picture, 0, sizeof(Picture));
1202 }
1203 }
1204
MPV_encode_picture(AVCodecContext * avctx,unsigned char * buf,int buf_size,void * data)1205 int MPV_encode_picture(AVCodecContext *avctx,
1206 unsigned char *buf, int buf_size, void *data)
1207 {
1208 MpegEncContext *s = avctx->priv_data;
1209 AVFrame *pic_arg = data;
1210 int i, stuffing_count;
1211
1212 for(i=0; i<avctx->thread_count; i++){
1213 int start_y= s->thread_context[i]->start_mb_y;
1214 int end_y= s->thread_context[i]-> end_mb_y;
1215 int h= s->mb_height;
1216 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1217 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1218
1219 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1220 }
1221
1222 s->picture_in_gop_number++;
1223
1224 if(load_input_picture(s, pic_arg) < 0)
1225 return -1;
1226
1227 select_input_picture(s);
1228
1229 /* output? */
1230 if(s->new_picture.data[0]){
1231 s->pict_type= s->new_picture.pict_type;
1232 //emms_c();
1233 //printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1234 MPV_frame_start(s, avctx);
1235 vbv_retry:
1236 if (encode_picture(s, s->picture_number) < 0)
1237 return -1;
1238
1239 avctx->real_pict_num = s->picture_number;
1240 avctx->header_bits = s->header_bits;
1241 avctx->mv_bits = s->mv_bits;
1242 avctx->misc_bits = s->misc_bits;
1243 avctx->i_tex_bits = s->i_tex_bits;
1244 avctx->p_tex_bits = s->p_tex_bits;
1245 avctx->i_count = s->i_count;
1246 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1247 avctx->skip_count = s->skip_count;
1248
1249 MPV_frame_end(s);
1250
1251 if (ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1252 ff_mjpeg_encode_picture_trailer(s);
1253
1254 if(avctx->rc_buffer_size){
1255 RateControlContext *rcc= &s->rc_context;
1256 int max_size= rcc->buffer_index/3;
1257
1258 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1259 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1260 if(s->adaptive_quant){
1261 int i;
1262 for(i=0; i<s->mb_height*s->mb_stride; i++)
1263 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1264 }
1265 s->mb_skipped = 0; //done in MPV_frame_start()
1266 if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
1267 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1268 s->no_rounding ^= 1;
1269 }
1270 if(s->pict_type!=FF_B_TYPE){
1271 s->time_base= s->last_time_base;
1272 s->last_non_b_time= s->time - s->pp_time;
1273 }
1274 // av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1275 for(i=0; i<avctx->thread_count; i++){
1276 PutBitContext *pb= &s->thread_context[i]->pb;
1277 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1278 }
1279 goto vbv_retry;
1280 }
1281
1282 assert(s->avctx->rc_max_rate);
1283 }
1284
1285 if(s->flags&CODEC_FLAG_PASS1)
1286 ff_write_pass1_stats(s);
1287
1288 for(i=0; i<4; i++){
1289 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1290 avctx->error[i] += s->current_picture_ptr->error[i];
1291 }
1292
1293 if(s->flags&CODEC_FLAG_PASS1)
1294 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1295 flush_put_bits(&s->pb);
1296 s->frame_bits = put_bits_count(&s->pb);
1297
1298 stuffing_count= ff_vbv_update(s, s->frame_bits);
1299 if(stuffing_count){
1300 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1301 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1302 return -1;
1303 }
1304
1305 switch(s->codec_id){
1306 case CODEC_ID_MPEG1VIDEO:
1307 case CODEC_ID_MPEG2VIDEO:
1308 while(stuffing_count--){
1309 put_bits(&s->pb, 8, 0);
1310 }
1311 break;
1312 case CODEC_ID_MPEG4:
1313 put_bits(&s->pb, 16, 0);
1314 put_bits(&s->pb, 16, 0x1C3);
1315 stuffing_count -= 4;
1316 while(stuffing_count--){
1317 put_bits(&s->pb, 8, 0xFF);
1318 }
1319 break;
1320 default:
1321 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1322 }
1323 flush_put_bits(&s->pb);
1324 s->frame_bits = put_bits_count(&s->pb);
1325 }
1326
1327 /* update mpeg1/2 vbv_delay for CBR */
1328 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1329 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1330 int vbv_delay;
1331
1332 assert(s->repeat_first_field==0);
1333
1334 vbv_delay= lrintf(90000 * s->rc_context.buffer_index / s->avctx->rc_max_rate);
1335 assert(vbv_delay < 0xFFFF);
1336
1337 s->vbv_delay_ptr[0] &= 0xF8;
1338 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1339 s->vbv_delay_ptr[1] = vbv_delay>>5;
1340 s->vbv_delay_ptr[2] &= 0x07;
1341 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1342 }
1343 s->total_bits += s->frame_bits;
1344 avctx->frame_bits = s->frame_bits;
1345 }else{
1346 assert((pbBufPtr(&s->pb) == s->pb.buf));
1347 s->frame_bits=0;
1348 }
1349 assert((s->frame_bits&7)==0);
1350
1351 return s->frame_bits/8;
1352 }
1353
dct_single_coeff_elimination(MpegEncContext * s,int n,int threshold)1354 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1355 {
1356 static const char tab[64]=
1357 {3,2,2,1,1,1,1,1,
1358 1,1,1,1,1,1,1,1,
1359 1,1,1,1,1,1,1,1,
1360 0,0,0,0,0,0,0,0,
1361 0,0,0,0,0,0,0,0,
1362 0,0,0,0,0,0,0,0,
1363 0,0,0,0,0,0,0,0,
1364 0,0,0,0,0,0,0,0};
1365 int score=0;
1366 int run=0;
1367 int i;
1368 DCTELEM *block= s->block[n];
1369 const int last_index= s->block_last_index[n];
1370 int skip_dc;
1371
1372 if(threshold<0){
1373 skip_dc=0;
1374 threshold= -threshold;
1375 }else
1376 skip_dc=1;
1377
1378 /* Are all we could set to zero already zero? */
1379 if(last_index<=skip_dc - 1) return;
1380
1381 for(i=0; i<=last_index; i++){
1382 const int j = s->intra_scantable.permutated[i];
1383 const int level = FFABS(block[j]);
1384 if(level==1){
1385 if(skip_dc && i==0) continue;
1386 score+= tab[run];
1387 run=0;
1388 }else if(level>1){
1389 return;
1390 }else{
1391 run++;
1392 }
1393 }
1394 if(score >= threshold) return;
1395 for(i=skip_dc; i<=last_index; i++){
1396 const int j = s->intra_scantable.permutated[i];
1397 block[j]=0;
1398 }
1399 if(block[0]) s->block_last_index[n]= 0;
1400 else s->block_last_index[n]= -1;
1401 }
1402
clip_coeffs(MpegEncContext * s,DCTELEM * block,int last_index)1403 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1404 {
1405 int i;
1406 const int maxlevel= s->max_qcoeff;
1407 const int minlevel= s->min_qcoeff;
1408 int overflow=0;
1409
1410 if(s->mb_intra){
1411 i=1; //skip clipping of intra dc
1412 }else
1413 i=0;
1414
1415 for(;i<=last_index; i++){
1416 const int j= s->intra_scantable.permutated[i];
1417 int level = block[j];
1418
1419 if (level>maxlevel){
1420 level=maxlevel;
1421 overflow++;
1422 }else if(level<minlevel){
1423 level=minlevel;
1424 overflow++;
1425 }
1426
1427 block[j]= level;
1428 }
1429
1430 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1431 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1432 }
1433
get_visual_weight(int16_t * weight,uint8_t * ptr,int stride)1434 static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1435 int x, y;
1436 //FIXME optimize
1437 for(y=0; y<8; y++){
1438 for(x=0; x<8; x++){
1439 int x2, y2;
1440 int sum=0;
1441 int sqr=0;
1442 int count=0;
1443
1444 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1445 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1446 int v= ptr[x2 + y2*stride];
1447 sum += v;
1448 sqr += v*v;
1449 count++;
1450 }
1451 }
1452 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1453 }
1454 }
1455 }
1456
encode_mb_internal(MpegEncContext * s,int motion_x,int motion_y,int mb_block_height,int mb_block_count)1457 static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1458 {
1459 int16_t weight[8][64];
1460 DCTELEM orig[8][64];
1461 const int mb_x= s->mb_x;
1462 const int mb_y= s->mb_y;
1463 int i;
1464 int skip_dct[8];
1465 int dct_offset = s->linesize*8; //default for progressive frames
1466 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1467 int wrap_y, wrap_c;
1468
1469 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1470
1471 if(s->adaptive_quant){
1472 const int last_qp= s->qscale;
1473 const int mb_xy= mb_x + mb_y*s->mb_stride;
1474
1475 s->lambda= s->lambda_table[mb_xy];
1476 update_qscale(s);
1477
1478 if(!(s->flags&CODEC_FLAG_QP_RD)){
1479 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1480 s->dquant= s->qscale - last_qp;
1481
1482 if(s->out_format==FMT_H263){
1483 s->dquant= av_clip(s->dquant, -2, 2);
1484
1485 if(s->codec_id==CODEC_ID_MPEG4){
1486 if(!s->mb_intra){
1487 if(s->pict_type == FF_B_TYPE){
1488 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1489 s->dquant= 0;
1490 }
1491 if(s->mv_type==MV_TYPE_8X8)
1492 s->dquant=0;
1493 }
1494 }
1495 }
1496 }
1497 ff_set_qscale(s, last_qp + s->dquant);
1498 }else if(s->flags&CODEC_FLAG_QP_RD)
1499 ff_set_qscale(s, s->qscale + s->dquant);
1500
1501 wrap_y = s->linesize;
1502 wrap_c = s->uvlinesize;
1503 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1504 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1505 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1506
1507 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1508 uint8_t *ebuf= s->edge_emu_buffer + 32;
1509 ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1510 ptr_y= ebuf;
1511 ff_emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1512 ptr_cb= ebuf+18*wrap_y;
1513 ff_emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1514 ptr_cr= ebuf+18*wrap_y+8;
1515 }
1516
1517 if (s->mb_intra) {
1518 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1519 int progressive_score, interlaced_score;
1520
1521 s->interlaced_dct=0;
1522 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1523 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1524
1525 if(progressive_score > 0){
1526 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1527 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1528 if(progressive_score > interlaced_score){
1529 s->interlaced_dct=1;
1530
1531 dct_offset= wrap_y;
1532 wrap_y<<=1;
1533 if (s->chroma_format == CHROMA_422)
1534 wrap_c<<=1;
1535 }
1536 }
1537 }
1538
1539 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1540 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1541 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1542 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1543
1544 if(s->flags&CODEC_FLAG_GRAY){
1545 skip_dct[4]= 1;
1546 skip_dct[5]= 1;
1547 }else{
1548 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1549 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1550 if(!s->chroma_y_shift){ /* 422 */
1551 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1552 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1553 }
1554 }
1555 }else{
1556 op_pixels_func (*op_pix)[4];
1557 qpel_mc_func (*op_qpix)[16];
1558 uint8_t *dest_y, *dest_cb, *dest_cr;
1559
1560 dest_y = s->dest[0];
1561 dest_cb = s->dest[1];
1562 dest_cr = s->dest[2];
1563
1564 if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
1565 op_pix = s->dsp.put_pixels_tab;
1566 op_qpix= s->dsp.put_qpel_pixels_tab;
1567 }else{
1568 op_pix = s->dsp.put_no_rnd_pixels_tab;
1569 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1570 }
1571
1572 if (s->mv_dir & MV_DIR_FORWARD) {
1573 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1574 op_pix = s->dsp.avg_pixels_tab;
1575 op_qpix= s->dsp.avg_qpel_pixels_tab;
1576 }
1577 if (s->mv_dir & MV_DIR_BACKWARD) {
1578 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1579 }
1580
1581 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1582 int progressive_score, interlaced_score;
1583
1584 s->interlaced_dct=0;
1585 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1586 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1587
1588 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1589
1590 if(progressive_score>0){
1591 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1592 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1593
1594 if(progressive_score > interlaced_score){
1595 s->interlaced_dct=1;
1596
1597 dct_offset= wrap_y;
1598 wrap_y<<=1;
1599 if (s->chroma_format == CHROMA_422)
1600 wrap_c<<=1;
1601 }
1602 }
1603 }
1604
1605 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1606 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1607 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1608 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1609
1610 if(s->flags&CODEC_FLAG_GRAY){
1611 skip_dct[4]= 1;
1612 skip_dct[5]= 1;
1613 }else{
1614 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1615 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1616 if(!s->chroma_y_shift){ /* 422 */
1617 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1618 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1619 }
1620 }
1621 /* pre quantization */
1622 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1623 //FIXME optimize
1624 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1625 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1626 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1627 if(s->dsp.sad[1](NULL, ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y, 8) < 20*s->qscale) skip_dct[3]= 1;
1628 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1629 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1630 if(!s->chroma_y_shift){ /* 422 */
1631 if(s->dsp.sad[1](NULL, ptr_cb +(dct_offset>>1), dest_cb +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[6]= 1;
1632 if(s->dsp.sad[1](NULL, ptr_cr +(dct_offset>>1), dest_cr +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[7]= 1;
1633 }
1634 }
1635 }
1636
1637 if(s->avctx->quantizer_noise_shaping){
1638 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1639 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1640 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1641 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1642 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1643 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
1644 if(!s->chroma_y_shift){ /* 422 */
1645 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1646 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1647 }
1648 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1649 }
1650
1651 /* DCT & quantize */
1652 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1653 {
1654 for(i=0;i<mb_block_count;i++) {
1655 if(!skip_dct[i]){
1656 int overflow;
1657 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1658 // FIXME we could decide to change to quantizer instead of clipping
1659 // JS: I don't think that would be a good idea it could lower quality instead
1660 // of improve it. Just INTRADC clipping deserves changes in quantizer
1661 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1662 }else
1663 s->block_last_index[i]= -1;
1664 }
1665 if(s->avctx->quantizer_noise_shaping){
1666 for(i=0;i<mb_block_count;i++) {
1667 if(!skip_dct[i]){
1668 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1669 }
1670 }
1671 }
1672
1673 if(s->luma_elim_threshold && !s->mb_intra)
1674 for(i=0; i<4; i++)
1675 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1676 if(s->chroma_elim_threshold && !s->mb_intra)
1677 for(i=4; i<mb_block_count; i++)
1678 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1679
1680 if(s->flags & CODEC_FLAG_CBP_RD){
1681 for(i=0;i<mb_block_count;i++) {
1682 if(s->block_last_index[i] == -1)
1683 s->coded_score[i]= INT_MAX/256;
1684 }
1685 }
1686 }
1687
1688 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1689 s->block_last_index[4]=
1690 s->block_last_index[5]= 0;
1691 s->block[4][0]=
1692 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1693 }
1694
1695 //non c quantize code returns incorrect block_last_index FIXME
1696 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1697 for(i=0; i<mb_block_count; i++){
1698 int j;
1699 if(s->block_last_index[i]>0){
1700 for(j=63; j>0; j--){
1701 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1702 }
1703 s->block_last_index[i]= j;
1704 }
1705 }
1706 }
1707
1708 /* huffman encode */
1709 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1710 case CODEC_ID_MPEG1VIDEO:
1711 case CODEC_ID_MPEG2VIDEO:
1712 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
1713 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1714 break;
1715 case CODEC_ID_MPEG4:
1716 if (ENABLE_MPEG4_ENCODER)
1717 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1718 break;
1719 case CODEC_ID_MSMPEG4V2:
1720 case CODEC_ID_MSMPEG4V3:
1721 case CODEC_ID_WMV1:
1722 if (ENABLE_MSMPEG4_ENCODER)
1723 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1724 break;
1725 case CODEC_ID_WMV2:
1726 if (ENABLE_WMV2_ENCODER)
1727 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1728 break;
1729 case CODEC_ID_H261:
1730 if (ENABLE_H261_ENCODER)
1731 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1732 break;
1733 case CODEC_ID_H263:
1734 case CODEC_ID_H263P:
1735 case CODEC_ID_FLV1:
1736 case CODEC_ID_RV10:
1737 case CODEC_ID_RV20:
1738 if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER ||
1739 ENABLE_FLV_ENCODER || ENABLE_RV10_ENCODER || ENABLE_RV20_ENCODER)
1740 h263_encode_mb(s, s->block, motion_x, motion_y);
1741 break;
1742 case CODEC_ID_MJPEG:
1743 if (ENABLE_MJPEG_ENCODER)
1744 ff_mjpeg_encode_mb(s, s->block);
1745 break;
1746 default:
1747 assert(0);
1748 }
1749 }
1750
encode_mb(MpegEncContext * s,int motion_x,int motion_y)1751 static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1752 {
1753 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1754 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1755 }
1756
copy_context_before_encode(MpegEncContext * d,MpegEncContext * s,int type)1757 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1758 int i;
1759
1760 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1761
1762 /* mpeg1 */
1763 d->mb_skip_run= s->mb_skip_run;
1764 for(i=0; i<3; i++)
1765 d->last_dc[i]= s->last_dc[i];
1766
1767 /* statistics */
1768 d->mv_bits= s->mv_bits;
1769 d->i_tex_bits= s->i_tex_bits;
1770 d->p_tex_bits= s->p_tex_bits;
1771 d->i_count= s->i_count;
1772 d->f_count= s->f_count;
1773 d->b_count= s->b_count;
1774 d->skip_count= s->skip_count;
1775 d->misc_bits= s->misc_bits;
1776 d->last_bits= 0;
1777
1778 d->mb_skipped= 0;
1779 d->qscale= s->qscale;
1780 d->dquant= s->dquant;
1781
1782 d->esc3_level_length= s->esc3_level_length;
1783 }
1784
copy_context_after_encode(MpegEncContext * d,MpegEncContext * s,int type)1785 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1786 int i;
1787
1788 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1789 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1790
1791 /* mpeg1 */
1792 d->mb_skip_run= s->mb_skip_run;
1793 for(i=0; i<3; i++)
1794 d->last_dc[i]= s->last_dc[i];
1795
1796 /* statistics */
1797 d->mv_bits= s->mv_bits;
1798 d->i_tex_bits= s->i_tex_bits;
1799 d->p_tex_bits= s->p_tex_bits;
1800 d->i_count= s->i_count;
1801 d->f_count= s->f_count;
1802 d->b_count= s->b_count;
1803 d->skip_count= s->skip_count;
1804 d->misc_bits= s->misc_bits;
1805
1806 d->mb_intra= s->mb_intra;
1807 d->mb_skipped= s->mb_skipped;
1808 d->mv_type= s->mv_type;
1809 d->mv_dir= s->mv_dir;
1810 d->pb= s->pb;
1811 if(s->data_partitioning){
1812 d->pb2= s->pb2;
1813 d->tex_pb= s->tex_pb;
1814 }
1815 d->block= s->block;
1816 for(i=0; i<8; i++)
1817 d->block_last_index[i]= s->block_last_index[i];
1818 d->interlaced_dct= s->interlaced_dct;
1819 d->qscale= s->qscale;
1820
1821 d->esc3_level_length= s->esc3_level_length;
1822 }
1823
encode_mb_hq(MpegEncContext * s,MpegEncContext * backup,MpegEncContext * best,int type,PutBitContext pb[2],PutBitContext pb2[2],PutBitContext tex_pb[2],int * dmin,int * next_block,int motion_x,int motion_y)1824 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1825 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1826 int *dmin, int *next_block, int motion_x, int motion_y)
1827 {
1828 int score;
1829 uint8_t *dest_backup[3];
1830
1831 copy_context_before_encode(s, backup, type);
1832
1833 s->block= s->blocks[*next_block];
1834 s->pb= pb[*next_block];
1835 if(s->data_partitioning){
1836 s->pb2 = pb2 [*next_block];
1837 s->tex_pb= tex_pb[*next_block];
1838 }
1839
1840 if(*next_block){
1841 memcpy(dest_backup, s->dest, sizeof(s->dest));
1842 s->dest[0] = s->rd_scratchpad;
1843 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1844 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1845 assert(s->linesize >= 32); //FIXME
1846 }
1847
1848 encode_mb(s, motion_x, motion_y);
1849
1850 score= put_bits_count(&s->pb);
1851 if(s->data_partitioning){
1852 score+= put_bits_count(&s->pb2);
1853 score+= put_bits_count(&s->tex_pb);
1854 }
1855
1856 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1857 MPV_decode_mb(s, s->block);
1858
1859 score *= s->lambda2;
1860 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1861 }
1862
1863 if(*next_block){
1864 memcpy(s->dest, dest_backup, sizeof(s->dest));
1865 }
1866
1867 if(score<*dmin){
1868 *dmin= score;
1869 *next_block^=1;
1870
1871 copy_context_after_encode(best, s, type);
1872 }
1873 }
1874
sse(MpegEncContext * s,uint8_t * src1,uint8_t * src2,int w,int h,int stride)1875 static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1876 uint32_t *sq = ff_squareTbl + 256;
1877 int acc=0;
1878 int x,y;
1879
1880 if(w==16 && h==16)
1881 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1882 else if(w==8 && h==8)
1883 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1884
1885 for(y=0; y<h; y++){
1886 for(x=0; x<w; x++){
1887 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1888 }
1889 }
1890
1891 assert(acc>=0);
1892
1893 return acc;
1894 }
1895
sse_mb(MpegEncContext * s)1896 static int sse_mb(MpegEncContext *s){
1897 int w= 16;
1898 int h= 16;
1899
1900 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1901 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1902
1903 if(w==16 && h==16)
1904 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1905 return s->dsp.nsse[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1906 +s->dsp.nsse[1](s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1907 +s->dsp.nsse[1](s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1908 }else{
1909 return s->dsp.sse[0](NULL, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1910 +s->dsp.sse[1](NULL, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1911 +s->dsp.sse[1](NULL, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1912 }
1913 else
1914 return sse(s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize)
1915 +sse(s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize)
1916 +sse(s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize);
1917 }
1918
pre_estimate_motion_thread(AVCodecContext * c,void * arg)1919 static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1920 MpegEncContext *s= arg;
1921
1922
1923 s->me.pre_pass=1;
1924 s->me.dia_size= s->avctx->pre_dia_size;
1925 s->first_slice_line=1;
1926 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1927 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1928 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1929 }
1930 s->first_slice_line=0;
1931 }
1932
1933 s->me.pre_pass=0;
1934
1935 return 0;
1936 }
1937
estimate_motion_thread(AVCodecContext * c,void * arg)1938 static int estimate_motion_thread(AVCodecContext *c, void *arg){
1939 MpegEncContext *s= arg;
1940
1941 ff_check_alignment();
1942
1943 s->me.dia_size= s->avctx->dia_size;
1944 s->first_slice_line=1;
1945 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1946 s->mb_x=0; //for block init below
1947 ff_init_block_index(s);
1948 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1949 s->block_index[0]+=2;
1950 s->block_index[1]+=2;
1951 s->block_index[2]+=2;
1952 s->block_index[3]+=2;
1953
1954 /* compute motion vector & mb_type and store in context */
1955 if(s->pict_type==FF_B_TYPE)
1956 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1957 else
1958 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1959 }
1960 s->first_slice_line=0;
1961 }
1962 return 0;
1963 }
1964
mb_var_thread(AVCodecContext * c,void * arg)1965 static int mb_var_thread(AVCodecContext *c, void *arg){
1966 MpegEncContext *s= arg;
1967 int mb_x, mb_y;
1968
1969 ff_check_alignment();
1970
1971 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1972 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1973 int xx = mb_x * 16;
1974 int yy = mb_y * 16;
1975 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1976 int varc;
1977 int sum = s->dsp.pix_sum(pix, s->linesize);
1978
1979 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1980
1981 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1982 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1983 s->me.mb_var_sum_temp += varc;
1984 }
1985 }
1986 return 0;
1987 }
1988
write_slice_end(MpegEncContext * s)1989 static void write_slice_end(MpegEncContext *s){
1990 if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
1991 if(s->partitioned_frame){
1992 ff_mpeg4_merge_partitions(s);
1993 }
1994
1995 ff_mpeg4_stuffing(&s->pb);
1996 }else if(ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
1997 ff_mjpeg_encode_stuffing(&s->pb);
1998 }
1999
2000 align_put_bits(&s->pb);
2001 flush_put_bits(&s->pb);
2002
2003 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2004 s->misc_bits+= get_bits_diff(s);
2005 }
2006
encode_thread(AVCodecContext * c,void * arg)2007 static int encode_thread(AVCodecContext *c, void *arg){
2008 MpegEncContext *s= arg;
2009 int mb_x, mb_y, pdif = 0;
2010 int i, j;
2011 MpegEncContext best_s, backup_s;
2012 uint8_t bit_buf[2][MAX_MB_BYTES];
2013 uint8_t bit_buf2[2][MAX_MB_BYTES];
2014 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2015 PutBitContext pb[2], pb2[2], tex_pb[2];
2016 //printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2017
2018 ff_check_alignment();
2019
2020 for(i=0; i<2; i++){
2021 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2022 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2023 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2024 }
2025
2026 s->last_bits= put_bits_count(&s->pb);
2027 s->mv_bits=0;
2028 s->misc_bits=0;
2029 s->i_tex_bits=0;
2030 s->p_tex_bits=0;
2031 s->i_count=0;
2032 s->f_count=0;
2033 s->b_count=0;
2034 s->skip_count=0;
2035
2036 for(i=0; i<3; i++){
2037 /* init last dc values */
2038 /* note: quant matrix value (8) is implied here */
2039 s->last_dc[i] = 128 << s->intra_dc_precision;
2040
2041 s->current_picture.error[i] = 0;
2042 }
2043 s->mb_skip_run = 0;
2044 memset(s->last_mv, 0, sizeof(s->last_mv));
2045
2046 s->last_mv_dir = 0;
2047
2048 switch(s->codec_id){
2049 case CODEC_ID_H263:
2050 case CODEC_ID_H263P:
2051 case CODEC_ID_FLV1:
2052 if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER || ENABLE_FLV_ENCODER)
2053 s->gob_index = ff_h263_get_gob_height(s);
2054 break;
2055 case CODEC_ID_MPEG4:
2056 if(ENABLE_MPEG4_ENCODER && s->partitioned_frame)
2057 ff_mpeg4_init_partitions(s);
2058 break;
2059 }
2060
2061 s->resync_mb_x=0;
2062 s->resync_mb_y=0;
2063 s->first_slice_line = 1;
2064 s->ptr_lastgob = s->pb.buf;
2065 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2066 // printf("row %d at %X\n", s->mb_y, (int)s);
2067 s->mb_x=0;
2068 s->mb_y= mb_y;
2069
2070 ff_set_qscale(s, s->qscale);
2071 ff_init_block_index(s);
2072
2073 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2074 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2075 int mb_type= s->mb_type[xy];
2076 // int d;
2077 int dmin= INT_MAX;
2078 int dir;
2079
2080 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2081 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2082 return -1;
2083 }
2084 if(s->data_partitioning){
2085 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2086 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2087 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2088 return -1;
2089 }
2090 }
2091
2092 s->mb_x = mb_x;
2093 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2094 ff_update_block_index(s);
2095
2096 if(ENABLE_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2097 ff_h261_reorder_mb_index(s);
2098 xy= s->mb_y*s->mb_stride + s->mb_x;
2099 mb_type= s->mb_type[xy];
2100 }
2101
2102 /* write gob / video packet header */
2103 if(s->rtp_mode){
2104 int current_packet_size, is_gob_start;
2105
2106 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2107
2108 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2109
2110 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2111
2112 switch(s->codec_id){
2113 case CODEC_ID_H263:
2114 case CODEC_ID_H263P:
2115 if(!s->h263_slice_structured)
2116 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2117 break;
2118 case CODEC_ID_MPEG2VIDEO:
2119 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2120 case CODEC_ID_MPEG1VIDEO:
2121 if(s->mb_skip_run) is_gob_start=0;
2122 break;
2123 }
2124
2125 if(is_gob_start){
2126 if(s->start_mb_y != mb_y || mb_x!=0){
2127 write_slice_end(s);
2128
2129 if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2130 ff_mpeg4_init_partitions(s);
2131 }
2132 }
2133
2134 assert((put_bits_count(&s->pb)&7) == 0);
2135 current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
2136
2137 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2138 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2139 int d= 100 / s->avctx->error_rate;
2140 if(r % d == 0){
2141 current_packet_size=0;
2142 #ifndef ALT_BITSTREAM_WRITER
2143 s->pb.buf_ptr= s->ptr_lastgob;
2144 #endif
2145 assert(pbBufPtr(&s->pb) == s->ptr_lastgob);
2146 }
2147 }
2148
2149 if (s->avctx->rtp_callback){
2150 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2151 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2152 }
2153
2154 switch(s->codec_id){
2155 case CODEC_ID_MPEG4:
2156 if (ENABLE_MPEG4_ENCODER) {
2157 ff_mpeg4_encode_video_packet_header(s);
2158 ff_mpeg4_clean_buffers(s);
2159 }
2160 break;
2161 case CODEC_ID_MPEG1VIDEO:
2162 case CODEC_ID_MPEG2VIDEO:
2163 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) {
2164 ff_mpeg1_encode_slice_header(s);
2165 ff_mpeg1_clean_buffers(s);
2166 }
2167 break;
2168 case CODEC_ID_H263:
2169 case CODEC_ID_H263P:
2170 if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER)
2171 h263_encode_gob_header(s, mb_y);
2172 break;
2173 }
2174
2175 if(s->flags&CODEC_FLAG_PASS1){
2176 int bits= put_bits_count(&s->pb);
2177 s->misc_bits+= bits - s->last_bits;
2178 s->last_bits= bits;
2179 }
2180
2181 s->ptr_lastgob += current_packet_size;
2182 s->first_slice_line=1;
2183 s->resync_mb_x=mb_x;
2184 s->resync_mb_y=mb_y;
2185 }
2186 }
2187
2188 if( (s->resync_mb_x == s->mb_x)
2189 && s->resync_mb_y+1 == s->mb_y){
2190 s->first_slice_line=0;
2191 }
2192
2193 s->mb_skipped=0;
2194 s->dquant=0; //only for QP_RD
2195
2196 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2197 int next_block=0;
2198 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2199
2200 copy_context_before_encode(&backup_s, s, -1);
2201 backup_s.pb= s->pb;
2202 best_s.data_partitioning= s->data_partitioning;
2203 best_s.partitioned_frame= s->partitioned_frame;
2204 if(s->data_partitioning){
2205 backup_s.pb2= s->pb2;
2206 backup_s.tex_pb= s->tex_pb;
2207 }
2208
2209 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2210 s->mv_dir = MV_DIR_FORWARD;
2211 s->mv_type = MV_TYPE_16X16;
2212 s->mb_intra= 0;
2213 s->mv[0][0][0] = s->p_mv_table[xy][0];
2214 s->mv[0][0][1] = s->p_mv_table[xy][1];
2215 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2216 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2217 }
2218 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2219 s->mv_dir = MV_DIR_FORWARD;
2220 s->mv_type = MV_TYPE_FIELD;
2221 s->mb_intra= 0;
2222 for(i=0; i<2; i++){
2223 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2224 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2225 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2226 }
2227 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2228 &dmin, &next_block, 0, 0);
2229 }
2230 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2231 s->mv_dir = MV_DIR_FORWARD;
2232 s->mv_type = MV_TYPE_16X16;
2233 s->mb_intra= 0;
2234 s->mv[0][0][0] = 0;
2235 s->mv[0][0][1] = 0;
2236 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2237 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2238 }
2239 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2240 s->mv_dir = MV_DIR_FORWARD;
2241 s->mv_type = MV_TYPE_8X8;
2242 s->mb_intra= 0;
2243 for(i=0; i<4; i++){
2244 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2245 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2246 }
2247 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2248 &dmin, &next_block, 0, 0);
2249 }
2250 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2251 s->mv_dir = MV_DIR_FORWARD;
2252 s->mv_type = MV_TYPE_16X16;
2253 s->mb_intra= 0;
2254 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2255 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2256 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2257 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2258 }
2259 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2260 s->mv_dir = MV_DIR_BACKWARD;
2261 s->mv_type = MV_TYPE_16X16;
2262 s->mb_intra= 0;
2263 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2264 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2265 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2266 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2267 }
2268 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2269 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2270 s->mv_type = MV_TYPE_16X16;
2271 s->mb_intra= 0;
2272 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2273 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2274 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2275 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2276 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2277 &dmin, &next_block, 0, 0);
2278 }
2279 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2280 s->mv_dir = MV_DIR_FORWARD;
2281 s->mv_type = MV_TYPE_FIELD;
2282 s->mb_intra= 0;
2283 for(i=0; i<2; i++){
2284 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2285 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2286 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2287 }
2288 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2289 &dmin, &next_block, 0, 0);
2290 }
2291 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2292 s->mv_dir = MV_DIR_BACKWARD;
2293 s->mv_type = MV_TYPE_FIELD;
2294 s->mb_intra= 0;
2295 for(i=0; i<2; i++){
2296 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2297 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2298 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2299 }
2300 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2301 &dmin, &next_block, 0, 0);
2302 }
2303 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2304 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2305 s->mv_type = MV_TYPE_FIELD;
2306 s->mb_intra= 0;
2307 for(dir=0; dir<2; dir++){
2308 for(i=0; i<2; i++){
2309 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2310 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2311 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2312 }
2313 }
2314 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2315 &dmin, &next_block, 0, 0);
2316 }
2317 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2318 s->mv_dir = 0;
2319 s->mv_type = MV_TYPE_16X16;
2320 s->mb_intra= 1;
2321 s->mv[0][0][0] = 0;
2322 s->mv[0][0][1] = 0;
2323 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2324 &dmin, &next_block, 0, 0);
2325 if(s->h263_pred || s->h263_aic){
2326 if(best_s.mb_intra)
2327 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2328 else
2329 ff_clean_intra_table_entries(s); //old mode?
2330 }
2331 }
2332
2333 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2334 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2335 const int last_qp= backup_s.qscale;
2336 int qpi, qp, dc[6];
2337 DCTELEM ac[6][16];
2338 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2339 static const int dquant_tab[4]={-1,1,-2,2};
2340
2341 assert(backup_s.dquant == 0);
2342
2343 //FIXME intra
2344 s->mv_dir= best_s.mv_dir;
2345 s->mv_type = MV_TYPE_16X16;
2346 s->mb_intra= best_s.mb_intra;
2347 s->mv[0][0][0] = best_s.mv[0][0][0];
2348 s->mv[0][0][1] = best_s.mv[0][0][1];
2349 s->mv[1][0][0] = best_s.mv[1][0][0];
2350 s->mv[1][0][1] = best_s.mv[1][0][1];
2351
2352 qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
2353 for(; qpi<4; qpi++){
2354 int dquant= dquant_tab[qpi];
2355 qp= last_qp + dquant;
2356 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2357 continue;
2358 backup_s.dquant= dquant;
2359 if(s->mb_intra && s->dc_val[0]){
2360 for(i=0; i<6; i++){
2361 dc[i]= s->dc_val[0][ s->block_index[i] ];
2362 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2363 }
2364 }
2365
2366 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2367 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2368 if(best_s.qscale != qp){
2369 if(s->mb_intra && s->dc_val[0]){
2370 for(i=0; i<6; i++){
2371 s->dc_val[0][ s->block_index[i] ]= dc[i];
2372 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2373 }
2374 }
2375 }
2376 }
2377 }
2378 }
2379 if(ENABLE_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2380 int mx= s->b_direct_mv_table[xy][0];
2381 int my= s->b_direct_mv_table[xy][1];
2382
2383 backup_s.dquant = 0;
2384 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2385 s->mb_intra= 0;
2386 ff_mpeg4_set_direct_mv(s, mx, my);
2387 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2388 &dmin, &next_block, mx, my);
2389 }
2390 if(ENABLE_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2391 backup_s.dquant = 0;
2392 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2393 s->mb_intra= 0;
2394 ff_mpeg4_set_direct_mv(s, 0, 0);
2395 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2396 &dmin, &next_block, 0, 0);
2397 }
2398 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2399 int coded=0;
2400 for(i=0; i<6; i++)
2401 coded |= s->block_last_index[i];
2402 if(coded){
2403 int mx,my;
2404 memcpy(s->mv, best_s.mv, sizeof(s->mv));
2405 if(ENABLE_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2406 mx=my=0; //FIXME find the one we actually used
2407 ff_mpeg4_set_direct_mv(s, mx, my);
2408 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2409 mx= s->mv[1][0][0];
2410 my= s->mv[1][0][1];
2411 }else{
2412 mx= s->mv[0][0][0];
2413 my= s->mv[0][0][1];
2414 }
2415
2416 s->mv_dir= best_s.mv_dir;
2417 s->mv_type = best_s.mv_type;
2418 s->mb_intra= 0;
2419 /* s->mv[0][0][0] = best_s.mv[0][0][0];
2420 s->mv[0][0][1] = best_s.mv[0][0][1];
2421 s->mv[1][0][0] = best_s.mv[1][0][0];
2422 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2423 backup_s.dquant= 0;
2424 s->skipdct=1;
2425 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2426 &dmin, &next_block, mx, my);
2427 s->skipdct=0;
2428 }
2429 }
2430
2431 s->current_picture.qscale_table[xy]= best_s.qscale;
2432
2433 copy_context_after_encode(s, &best_s, -1);
2434
2435 pb_bits_count= put_bits_count(&s->pb);
2436 flush_put_bits(&s->pb);
2437 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2438 s->pb= backup_s.pb;
2439
2440 if(s->data_partitioning){
2441 pb2_bits_count= put_bits_count(&s->pb2);
2442 flush_put_bits(&s->pb2);
2443 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2444 s->pb2= backup_s.pb2;
2445
2446 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2447 flush_put_bits(&s->tex_pb);
2448 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2449 s->tex_pb= backup_s.tex_pb;
2450 }
2451 s->last_bits= put_bits_count(&s->pb);
2452
2453 if (ENABLE_ANY_H263_ENCODER &&
2454 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2455 ff_h263_update_motion_val(s);
2456
2457 if(next_block==0){ //FIXME 16 vs linesize16
2458 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2459 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2460 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2461 }
2462
2463 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2464 MPV_decode_mb(s, s->block);
2465 } else {
2466 int motion_x = 0, motion_y = 0;
2467 s->mv_type=MV_TYPE_16X16;
2468 // only one MB-Type possible
2469
2470 switch(mb_type){
2471 case CANDIDATE_MB_TYPE_INTRA:
2472 s->mv_dir = 0;
2473 s->mb_intra= 1;
2474 motion_x= s->mv[0][0][0] = 0;
2475 motion_y= s->mv[0][0][1] = 0;
2476 break;
2477 case CANDIDATE_MB_TYPE_INTER:
2478 s->mv_dir = MV_DIR_FORWARD;
2479 s->mb_intra= 0;
2480 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2481 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2482 break;
2483 case CANDIDATE_MB_TYPE_INTER_I:
2484 s->mv_dir = MV_DIR_FORWARD;
2485 s->mv_type = MV_TYPE_FIELD;
2486 s->mb_intra= 0;
2487 for(i=0; i<2; i++){
2488 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2489 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2490 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2491 }
2492 break;
2493 case CANDIDATE_MB_TYPE_INTER4V:
2494 s->mv_dir = MV_DIR_FORWARD;
2495 s->mv_type = MV_TYPE_8X8;
2496 s->mb_intra= 0;
2497 for(i=0; i<4; i++){
2498 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2499 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2500 }
2501 break;
2502 case CANDIDATE_MB_TYPE_DIRECT:
2503 if (ENABLE_MPEG4_ENCODER) {
2504 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2505 s->mb_intra= 0;
2506 motion_x=s->b_direct_mv_table[xy][0];
2507 motion_y=s->b_direct_mv_table[xy][1];
2508 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2509 }
2510 break;
2511 case CANDIDATE_MB_TYPE_DIRECT0:
2512 if (ENABLE_MPEG4_ENCODER) {
2513 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2514 s->mb_intra= 0;
2515 ff_mpeg4_set_direct_mv(s, 0, 0);
2516 }
2517 break;
2518 case CANDIDATE_MB_TYPE_BIDIR:
2519 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2520 s->mb_intra= 0;
2521 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2522 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2523 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2524 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2525 break;
2526 case CANDIDATE_MB_TYPE_BACKWARD:
2527 s->mv_dir = MV_DIR_BACKWARD;
2528 s->mb_intra= 0;
2529 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2530 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2531 break;
2532 case CANDIDATE_MB_TYPE_FORWARD:
2533 s->mv_dir = MV_DIR_FORWARD;
2534 s->mb_intra= 0;
2535 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2536 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2537 // printf(" %d %d ", motion_x, motion_y);
2538 break;
2539 case CANDIDATE_MB_TYPE_FORWARD_I:
2540 s->mv_dir = MV_DIR_FORWARD;
2541 s->mv_type = MV_TYPE_FIELD;
2542 s->mb_intra= 0;
2543 for(i=0; i<2; i++){
2544 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2545 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2546 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2547 }
2548 break;
2549 case CANDIDATE_MB_TYPE_BACKWARD_I:
2550 s->mv_dir = MV_DIR_BACKWARD;
2551 s->mv_type = MV_TYPE_FIELD;
2552 s->mb_intra= 0;
2553 for(i=0; i<2; i++){
2554 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2555 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2556 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2557 }
2558 break;
2559 case CANDIDATE_MB_TYPE_BIDIR_I:
2560 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2561 s->mv_type = MV_TYPE_FIELD;
2562 s->mb_intra= 0;
2563 for(dir=0; dir<2; dir++){
2564 for(i=0; i<2; i++){
2565 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2566 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2567 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2568 }
2569 }
2570 break;
2571 default:
2572 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2573 }
2574
2575 encode_mb(s, motion_x, motion_y);
2576
2577 // RAL: Update last macroblock type
2578 s->last_mv_dir = s->mv_dir;
2579
2580 if (ENABLE_ANY_H263_ENCODER &&
2581 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2582 ff_h263_update_motion_val(s);
2583
2584 MPV_decode_mb(s, s->block);
2585 }
2586
2587 /* clean the MV table in IPS frames for direct mode in B frames */
2588 if(s->mb_intra /* && I,P,S_TYPE */){
2589 s->p_mv_table[xy][0]=0;
2590 s->p_mv_table[xy][1]=0;
2591 }
2592
2593 if(s->flags&CODEC_FLAG_PSNR){
2594 int w= 16;
2595 int h= 16;
2596
2597 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2598 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2599
2600 s->current_picture.error[0] += sse(
2601 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2602 s->dest[0], w, h, s->linesize);
2603 s->current_picture.error[1] += sse(
2604 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,
2605 s->dest[1], w>>1, h>>1, s->uvlinesize);
2606 s->current_picture.error[2] += sse(
2607 s, s->new_picture .data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,
2608 s->dest[2], w>>1, h>>1, s->uvlinesize);
2609 }
2610 if(s->loop_filter){
2611 if(ENABLE_ANY_H263_ENCODER && s->out_format == FMT_H263)
2612 ff_h263_loop_filter(s);
2613 }
2614 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2615 }
2616 }
2617
2618 //not beautiful here but we must write it before flushing so it has to be here
2619 if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
2620 msmpeg4_encode_ext_header(s);
2621
2622 write_slice_end(s);
2623
2624 /* Send the last GOB if RTP */
2625 if (s->avctx->rtp_callback) {
2626 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2627 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2628 /* Call the RTP callback to send the last GOB */
2629 emms_c();
2630 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2631 }
2632
2633 return 0;
2634 }
2635
2636 #define MERGE(field) dst->field += src->field; src->field=0
merge_context_after_me(MpegEncContext * dst,MpegEncContext * src)2637 static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2638 MERGE(me.scene_change_score);
2639 MERGE(me.mc_mb_var_sum_temp);
2640 MERGE(me.mb_var_sum_temp);
2641 }
2642
merge_context_after_encode(MpegEncContext * dst,MpegEncContext * src)2643 static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2644 int i;
2645
2646 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2647 MERGE(dct_count[1]);
2648 MERGE(mv_bits);
2649 MERGE(i_tex_bits);
2650 MERGE(p_tex_bits);
2651 MERGE(i_count);
2652 MERGE(f_count);
2653 MERGE(b_count);
2654 MERGE(skip_count);
2655 MERGE(misc_bits);
2656 MERGE(error_count);
2657 MERGE(padding_bug_score);
2658 MERGE(current_picture.error[0]);
2659 MERGE(current_picture.error[1]);
2660 MERGE(current_picture.error[2]);
2661
2662 if(dst->avctx->noise_reduction){
2663 for(i=0; i<64; i++){
2664 MERGE(dct_error_sum[0][i]);
2665 MERGE(dct_error_sum[1][i]);
2666 }
2667 }
2668
2669 assert(put_bits_count(&src->pb) % 8 ==0);
2670 assert(put_bits_count(&dst->pb) % 8 ==0);
2671 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2672 flush_put_bits(&dst->pb);
2673 }
2674
estimate_qp(MpegEncContext * s,int dry_run)2675 static int estimate_qp(MpegEncContext *s, int dry_run){
2676 if (s->next_lambda){
2677 s->current_picture_ptr->quality=
2678 s->current_picture.quality = s->next_lambda;
2679 if(!dry_run) s->next_lambda= 0;
2680 } else if (!s->fixed_qscale) {
2681 s->current_picture_ptr->quality=
2682 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2683 if (s->current_picture.quality < 0)
2684 return -1;
2685 }
2686
2687 if(s->adaptive_quant){
2688 switch(s->codec_id){
2689 case CODEC_ID_MPEG4:
2690 if (ENABLE_MPEG4_ENCODER)
2691 ff_clean_mpeg4_qscales(s);
2692 break;
2693 case CODEC_ID_H263:
2694 case CODEC_ID_H263P:
2695 case CODEC_ID_FLV1:
2696 if (ENABLE_H263_ENCODER||ENABLE_H263P_ENCODER||ENABLE_FLV_ENCODER)
2697 ff_clean_h263_qscales(s);
2698 break;
2699 }
2700
2701 s->lambda= s->lambda_table[0];
2702 //FIXME broken
2703 }else
2704 s->lambda= s->current_picture.quality;
2705 //printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2706 update_qscale(s);
2707 return 0;
2708 }
2709
2710 /* must be called before writing the header */
set_frame_distances(MpegEncContext * s)2711 static void set_frame_distances(MpegEncContext * s){
2712 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2713 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2714
2715 if(s->pict_type==FF_B_TYPE){
2716 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2717 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2718 }else{
2719 s->pp_time= s->time - s->last_non_b_time;
2720 s->last_non_b_time= s->time;
2721 assert(s->picture_number==0 || s->pp_time > 0);
2722 }
2723 }
2724
encode_picture(MpegEncContext * s,int picture_number)2725 static int encode_picture(MpegEncContext *s, int picture_number)
2726 {
2727 int i;
2728 int bits;
2729
2730 s->picture_number = picture_number;
2731
2732 /* Reset the average MB variance */
2733 s->me.mb_var_sum_temp =
2734 s->me.mc_mb_var_sum_temp = 0;
2735
2736 /* we need to initialize some time vars before we can encode b-frames */
2737 // RAL: Condition added for MPEG1VIDEO
2738 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2739 set_frame_distances(s);
2740 if(ENABLE_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2741 ff_set_mpeg4_time(s);
2742
2743 s->me.scene_change_score=0;
2744
2745 // s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2746
2747 if(s->pict_type==FF_I_TYPE){
2748 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2749 else s->no_rounding=0;
2750 }else if(s->pict_type!=FF_B_TYPE){
2751 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2752 s->no_rounding ^= 1;
2753 }
2754
2755 if(s->flags & CODEC_FLAG_PASS2){
2756 if (estimate_qp(s,1) < 0)
2757 return -1;
2758 ff_get_2pass_fcode(s);
2759 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2760 if(s->pict_type==FF_B_TYPE)
2761 s->lambda= s->last_lambda_for[s->pict_type];
2762 else
2763 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2764 update_qscale(s);
2765 }
2766
2767 s->mb_intra=0; //for the rate distortion & bit compare functions
2768 for(i=1; i<s->avctx->thread_count; i++){
2769 ff_update_duplicate_context(s->thread_context[i], s);
2770 }
2771
2772 ff_init_me(s);
2773
2774 /* Estimate motion for every MB */
2775 if(s->pict_type != FF_I_TYPE){
2776 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2777 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2778 if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2779 if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
2780 s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2781 }
2782 }
2783
2784 s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2785 }else /* if(s->pict_type == FF_I_TYPE) */{
2786 /* I-Frame */
2787 for(i=0; i<s->mb_stride*s->mb_height; i++)
2788 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2789
2790 if(!s->fixed_qscale){
2791 /* finding spatial complexity for I-frame rate control */
2792 s->avctx->execute(s->avctx, mb_var_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2793 }
2794 }
2795 for(i=1; i<s->avctx->thread_count; i++){
2796 merge_context_after_me(s, s->thread_context[i]);
2797 }
2798 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2799 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2800 emms_c();
2801
2802 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2803 s->pict_type= FF_I_TYPE;
2804 for(i=0; i<s->mb_stride*s->mb_height; i++)
2805 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2806 //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2807 }
2808
2809 if(!s->umvplus){
2810 if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
2811 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2812
2813 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2814 int a,b;
2815 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2816 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2817 s->f_code= FFMAX3(s->f_code, a, b);
2818 }
2819
2820 ff_fix_long_p_mvs(s);
2821 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2822 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2823 int j;
2824 for(i=0; i<2; i++){
2825 for(j=0; j<2; j++)
2826 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2827 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2828 }
2829 }
2830 }
2831
2832 if(s->pict_type==FF_B_TYPE){
2833 int a, b;
2834
2835 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2836 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2837 s->f_code = FFMAX(a, b);
2838
2839 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2840 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2841 s->b_code = FFMAX(a, b);
2842
2843 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2844 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2845 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2846 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2847 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2848 int dir, j;
2849 for(dir=0; dir<2; dir++){
2850 for(i=0; i<2; i++){
2851 for(j=0; j<2; j++){
2852 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2853 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2854 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2855 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2856 }
2857 }
2858 }
2859 }
2860 }
2861 }
2862
2863 if (estimate_qp(s, 0) < 0)
2864 return -1;
2865
2866 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2867 s->qscale= 3; //reduce clipping problems
2868
2869 if (s->out_format == FMT_MJPEG) {
2870 /* for mjpeg, we do include qscale in the matrix */
2871 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2872 for(i=1;i<64;i++){
2873 int j= s->dsp.idct_permutation[i];
2874
2875 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2876 }
2877 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2878 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2879 s->qscale= 8;
2880 }
2881
2882 //FIXME var duplication
2883 s->current_picture_ptr->key_frame=
2884 s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
2885 s->current_picture_ptr->pict_type=
2886 s->current_picture.pict_type= s->pict_type;
2887
2888 if(s->current_picture.key_frame)
2889 s->picture_in_gop_number=0;
2890
2891 s->last_bits= put_bits_count(&s->pb);
2892 switch(s->out_format) {
2893 case FMT_MJPEG:
2894 if (ENABLE_MJPEG_ENCODER)
2895 ff_mjpeg_encode_picture_header(s);
2896 break;
2897 case FMT_H261:
2898 if (ENABLE_H261_ENCODER)
2899 ff_h261_encode_picture_header(s, picture_number);
2900 break;
2901 case FMT_H263:
2902 if (ENABLE_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2903 ff_wmv2_encode_picture_header(s, picture_number);
2904 else if (ENABLE_MSMPEG4_ENCODER && s->h263_msmpeg4)
2905 msmpeg4_encode_picture_header(s, picture_number);
2906 else if (ENABLE_MPEG4_ENCODER && s->h263_pred)
2907 mpeg4_encode_picture_header(s, picture_number);
2908 else if (ENABLE_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2909 rv10_encode_picture_header(s, picture_number);
2910 else if (ENABLE_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2911 rv20_encode_picture_header(s, picture_number);
2912 else if (ENABLE_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2913 ff_flv_encode_picture_header(s, picture_number);
2914 else if (ENABLE_ANY_H263_ENCODER)
2915 h263_encode_picture_header(s, picture_number);
2916 break;
2917 case FMT_MPEG1:
2918 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
2919 mpeg1_encode_picture_header(s, picture_number);
2920 break;
2921 case FMT_H264:
2922 break;
2923 default:
2924 assert(0);
2925 }
2926 bits= put_bits_count(&s->pb);
2927 s->header_bits= bits - s->last_bits;
2928
2929 for(i=1; i<s->avctx->thread_count; i++){
2930 update_duplicate_context_after_me(s->thread_context[i], s);
2931 }
2932 s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2933 for(i=1; i<s->avctx->thread_count; i++){
2934 merge_context_after_encode(s, s->thread_context[i]);
2935 }
2936 emms_c();
2937 return 0;
2938 }
2939
denoise_dct_c(MpegEncContext * s,DCTELEM * block)2940 void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2941 const int intra= s->mb_intra;
2942 int i;
2943
2944 s->dct_count[intra]++;
2945
2946 for(i=0; i<64; i++){
2947 int level= block[i];
2948
2949 if(level){
2950 if(level>0){
2951 s->dct_error_sum[intra][i] += level;
2952 level -= s->dct_offset[intra][i];
2953 if(level<0) level=0;
2954 }else{
2955 s->dct_error_sum[intra][i] -= level;
2956 level += s->dct_offset[intra][i];
2957 if(level>0) level=0;
2958 }
2959 block[i]= level;
2960 }
2961 }
2962 }
2963
dct_quantize_trellis_c(MpegEncContext * s,DCTELEM * block,int n,int qscale,int * overflow)2964 int dct_quantize_trellis_c(MpegEncContext *s,
2965 DCTELEM *block, int n,
2966 int qscale, int *overflow){
2967 const int *qmat;
2968 const uint8_t *scantable= s->intra_scantable.scantable;
2969 const uint8_t *perm_scantable= s->intra_scantable.permutated;
2970 int max=0;
2971 unsigned int threshold1, threshold2;
2972 int bias=0;
2973 int run_tab[65];
2974 int level_tab[65];
2975 int score_tab[65];
2976 int survivor[65];
2977 int survivor_count;
2978 int last_run=0;
2979 int last_level=0;
2980 int last_score= 0;
2981 int last_i;
2982 int coeff[2][64];
2983 int coeff_count[64];
2984 int qmul, qadd, start_i, last_non_zero, i, dc;
2985 const int esc_length= s->ac_esc_length;
2986 uint8_t * length;
2987 uint8_t * last_length;
2988 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2989
2990 s->dsp.fdct (block);
2991
2992 if(s->dct_error_sum)
2993 s->denoise_dct(s, block);
2994 qmul= qscale*16;
2995 qadd= ((qscale-1)|1)*8;
2996
2997 if (s->mb_intra) {
2998 int q;
2999 if (!s->h263_aic) {
3000 if (n < 4)
3001 q = s->y_dc_scale;
3002 else
3003 q = s->c_dc_scale;
3004 q = q << 3;
3005 } else{
3006 /* For AIC we skip quant/dequant of INTRADC */
3007 q = 1 << 3;
3008 qadd=0;
3009 }
3010
3011 /* note: block[0] is assumed to be positive */
3012 block[0] = (block[0] + (q >> 1)) / q;
3013 start_i = 1;
3014 last_non_zero = 0;
3015 qmat = s->q_intra_matrix[qscale];
3016 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3017 bias= 1<<(QMAT_SHIFT-1);
3018 length = s->intra_ac_vlc_length;
3019 last_length= s->intra_ac_vlc_last_length;
3020 } else {
3021 start_i = 0;
3022 last_non_zero = -1;
3023 qmat = s->q_inter_matrix[qscale];
3024 length = s->inter_ac_vlc_length;
3025 last_length= s->inter_ac_vlc_last_length;
3026 }
3027 last_i= start_i;
3028
3029 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3030 threshold2= (threshold1<<1);
3031
3032 for(i=63; i>=start_i; i--) {
3033 const int j = scantable[i];
3034 int level = block[j] * qmat[j];
3035
3036 if(((unsigned)(level+threshold1))>threshold2){
3037 last_non_zero = i;
3038 break;
3039 }
3040 }
3041
3042 for(i=start_i; i<=last_non_zero; i++) {
3043 const int j = scantable[i];
3044 int level = block[j] * qmat[j];
3045
3046 // if( bias+level >= (1<<(QMAT_SHIFT - 3))
3047 // || bias-level >= (1<<(QMAT_SHIFT - 3))){
3048 if(((unsigned)(level+threshold1))>threshold2){
3049 if(level>0){
3050 level= (bias + level)>>QMAT_SHIFT;
3051 coeff[0][i]= level;
3052 coeff[1][i]= level-1;
3053 // coeff[2][k]= level-2;
3054 }else{
3055 level= (bias - level)>>QMAT_SHIFT;
3056 coeff[0][i]= -level;
3057 coeff[1][i]= -level+1;
3058 // coeff[2][k]= -level+2;
3059 }
3060 coeff_count[i]= FFMIN(level, 2);
3061 assert(coeff_count[i]);
3062 max |=level;
3063 }else{
3064 coeff[0][i]= (level>>31)|1;
3065 coeff_count[i]= 1;
3066 }
3067 }
3068
3069 *overflow= s->max_qcoeff < max; //overflow might have happened
3070
3071 if(last_non_zero < start_i){
3072 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3073 return last_non_zero;
3074 }
3075
3076 score_tab[start_i]= 0;
3077 survivor[0]= start_i;
3078 survivor_count= 1;
3079
3080 for(i=start_i; i<=last_non_zero; i++){
3081 int level_index, j, zero_distortion;
3082 int dct_coeff= FFABS(block[ scantable[i] ]);
3083 int best_score=256*256*256*120;
3084
3085 if ( s->dsp.fdct == fdct_ifast
3086 #ifndef FAAN_POSTSCALE
3087 || s->dsp.fdct == ff_faandct
3088 #endif
3089 )
3090 dct_coeff= (dct_coeff*inv_aanscales[ scantable[i] ]) >> 12;
3091 zero_distortion= dct_coeff*dct_coeff;
3092
3093 for(level_index=0; level_index < coeff_count[i]; level_index++){
3094 int distortion;
3095 int level= coeff[level_index][i];
3096 const int alevel= FFABS(level);
3097 int unquant_coeff;
3098
3099 assert(level);
3100
3101 if(s->out_format == FMT_H263){
3102 unquant_coeff= alevel*qmul + qadd;
3103 }else{ //MPEG1
3104 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3105 if(s->mb_intra){
3106 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3107 unquant_coeff = (unquant_coeff - 1) | 1;
3108 }else{
3109 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3110 unquant_coeff = (unquant_coeff - 1) | 1;
3111 }
3112 unquant_coeff<<= 3;
3113 }
3114
3115 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3116 level+=64;
3117 if((level&(~127)) == 0){
3118 for(j=survivor_count-1; j>=0; j--){
3119 int run= i - survivor[j];
3120 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3121 score += score_tab[i-run];
3122
3123 if(score < best_score){
3124 best_score= score;
3125 run_tab[i+1]= run;
3126 level_tab[i+1]= level-64;
3127 }
3128 }
3129
3130 if(s->out_format == FMT_H263){
3131 for(j=survivor_count-1; j>=0; j--){
3132 int run= i - survivor[j];
3133 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3134 score += score_tab[i-run];
3135 if(score < last_score){
3136 last_score= score;
3137 last_run= run;
3138 last_level= level-64;
3139 last_i= i+1;
3140 }
3141 }
3142 }
3143 }else{
3144 distortion += esc_length*lambda;
3145 for(j=survivor_count-1; j>=0; j--){
3146 int run= i - survivor[j];
3147 int score= distortion + score_tab[i-run];
3148
3149 if(score < best_score){
3150 best_score= score;
3151 run_tab[i+1]= run;
3152 level_tab[i+1]= level-64;
3153 }
3154 }
3155
3156 if(s->out_format == FMT_H263){
3157 for(j=survivor_count-1; j>=0; j--){
3158 int run= i - survivor[j];
3159 int score= distortion + score_tab[i-run];
3160 if(score < last_score){
3161 last_score= score;
3162 last_run= run;
3163 last_level= level-64;
3164 last_i= i+1;
3165 }
3166 }
3167 }
3168 }
3169 }
3170
3171 score_tab[i+1]= best_score;
3172
3173 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3174 if(last_non_zero <= 27){
3175 for(; survivor_count; survivor_count--){
3176 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3177 break;
3178 }
3179 }else{
3180 for(; survivor_count; survivor_count--){
3181 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3182 break;
3183 }
3184 }
3185
3186 survivor[ survivor_count++ ]= i+1;
3187 }
3188
3189 if(s->out_format != FMT_H263){
3190 last_score= 256*256*256*120;
3191 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3192 int score= score_tab[i];
3193 if(i) score += lambda*2; //FIXME exacter?
3194
3195 if(score < last_score){
3196 last_score= score;
3197 last_i= i;
3198 last_level= level_tab[i];
3199 last_run= run_tab[i];
3200 }
3201 }
3202 }
3203
3204 s->coded_score[n] = last_score;
3205
3206 dc= FFABS(block[0]);
3207 last_non_zero= last_i - 1;
3208 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3209
3210 if(last_non_zero < start_i)
3211 return last_non_zero;
3212
3213 if(last_non_zero == 0 && start_i == 0){
3214 int best_level= 0;
3215 int best_score= dc * dc;
3216
3217 for(i=0; i<coeff_count[0]; i++){
3218 int level= coeff[i][0];
3219 int alevel= FFABS(level);
3220 int unquant_coeff, score, distortion;
3221
3222 if(s->out_format == FMT_H263){
3223 unquant_coeff= (alevel*qmul + qadd)>>3;
3224 }else{ //MPEG1
3225 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3226 unquant_coeff = (unquant_coeff - 1) | 1;
3227 }
3228 unquant_coeff = (unquant_coeff + 4) >> 3;
3229 unquant_coeff<<= 3 + 3;
3230
3231 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3232 level+=64;
3233 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3234 else score= distortion + esc_length*lambda;
3235
3236 if(score < best_score){
3237 best_score= score;
3238 best_level= level - 64;
3239 }
3240 }
3241 block[0]= best_level;
3242 s->coded_score[n] = best_score - dc*dc;
3243 if(best_level == 0) return -1;
3244 else return last_non_zero;
3245 }
3246
3247 i= last_i;
3248 assert(last_level);
3249
3250 block[ perm_scantable[last_non_zero] ]= last_level;
3251 i -= last_run + 1;
3252
3253 for(; i>start_i; i -= run_tab[i] + 1){
3254 block[ perm_scantable[i-1] ]= level_tab[i];
3255 }
3256
3257 return last_non_zero;
3258 }
3259
3260 //#define REFINE_STATS 1
3261 static int16_t basis[64][64];
3262
build_basis(uint8_t * perm)3263 static void build_basis(uint8_t *perm){
3264 int i, j, x, y;
3265 emms_c();
3266 for(i=0; i<8; i++){
3267 for(j=0; j<8; j++){
3268 for(y=0; y<8; y++){
3269 for(x=0; x<8; x++){
3270 double s= 0.25*(1<<BASIS_SHIFT);
3271 int index= 8*i + j;
3272 int perm_index= perm[index];
3273 if(i==0) s*= sqrt(0.5);
3274 if(j==0) s*= sqrt(0.5);
3275 basis[perm_index][8*x + y]= lrintf(s * cos((M_PI/8.0)*i*(x+0.5)) * cos((M_PI/8.0)*j*(y+0.5)));
3276 }
3277 }
3278 }
3279 }
3280 }
3281
dct_quantize_refine(MpegEncContext * s,DCTELEM * block,int16_t * weight,DCTELEM * orig,int n,int qscale)3282 static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3283 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3284 int n, int qscale){
3285 int16_t rem[64];
3286 DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3287 const int *qmat;
3288 const uint8_t *scantable= s->intra_scantable.scantable;
3289 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3290 // unsigned int threshold1, threshold2;
3291 // int bias=0;
3292 int run_tab[65];
3293 int prev_run=0;
3294 int prev_level=0;
3295 int qmul, qadd, start_i, last_non_zero, i, dc;
3296 uint8_t * length;
3297 uint8_t * last_length;
3298 int lambda;
3299 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3300 #ifdef REFINE_STATS
3301 static int count=0;
3302 static int after_last=0;
3303 static int to_zero=0;
3304 static int from_zero=0;
3305 static int raise=0;
3306 static int lower=0;
3307 static int messed_sign=0;
3308 #endif
3309
3310 if(basis[0][0] == 0)
3311 build_basis(s->dsp.idct_permutation);
3312
3313 qmul= qscale*2;
3314 qadd= (qscale-1)|1;
3315 if (s->mb_intra) {
3316 if (!s->h263_aic) {
3317 if (n < 4)
3318 q = s->y_dc_scale;
3319 else
3320 q = s->c_dc_scale;
3321 } else{
3322 /* For AIC we skip quant/dequant of INTRADC */
3323 q = 1;
3324 qadd=0;
3325 }
3326 q <<= RECON_SHIFT-3;
3327 /* note: block[0] is assumed to be positive */
3328 dc= block[0]*q;
3329 // block[0] = (block[0] + (q >> 1)) / q;
3330 start_i = 1;
3331 qmat = s->q_intra_matrix[qscale];
3332 // if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3333 // bias= 1<<(QMAT_SHIFT-1);
3334 length = s->intra_ac_vlc_length;
3335 last_length= s->intra_ac_vlc_last_length;
3336 } else {
3337 dc= 0;
3338 start_i = 0;
3339 qmat = s->q_inter_matrix[qscale];
3340 length = s->inter_ac_vlc_length;
3341 last_length= s->inter_ac_vlc_last_length;
3342 }
3343 last_non_zero = s->block_last_index[n];
3344
3345 #ifdef REFINE_STATS
3346 {START_TIMER
3347 #endif
3348 dc += (1<<(RECON_SHIFT-1));
3349 for(i=0; i<64; i++){
3350 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3351 }
3352 #ifdef REFINE_STATS
3353 STOP_TIMER("memset rem[]")}
3354 #endif
3355 sum=0;
3356 for(i=0; i<64; i++){
3357 int one= 36;
3358 int qns=4;
3359 int w;
3360
3361 w= FFABS(weight[i]) + qns*one;
3362 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3363
3364 weight[i] = w;
3365 // w=weight[i] = (63*qns + (w/2)) / w;
3366
3367 assert(w>0);
3368 assert(w<(1<<6));
3369 sum += w*w;
3370 }
3371 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3372 #ifdef REFINE_STATS
3373 {START_TIMER
3374 #endif
3375 run=0;
3376 rle_index=0;
3377 for(i=start_i; i<=last_non_zero; i++){
3378 int j= perm_scantable[i];
3379 const int level= block[j];
3380 int coeff;
3381
3382 if(level){
3383 if(level<0) coeff= qmul*level - qadd;
3384 else coeff= qmul*level + qadd;
3385 run_tab[rle_index++]=run;
3386 run=0;
3387
3388 s->dsp.add_8x8basis(rem, basis[j], coeff);
3389 }else{
3390 run++;
3391 }
3392 }
3393 #ifdef REFINE_STATS
3394 if(last_non_zero>0){
3395 STOP_TIMER("init rem[]")
3396 }
3397 }
3398
3399 {START_TIMER
3400 #endif
3401 for(;;){
3402 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3403 int best_coeff=0;
3404 int best_change=0;
3405 int run2, best_unquant_change=0, analyze_gradient;
3406 #ifdef REFINE_STATS
3407 {START_TIMER
3408 #endif
3409 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3410
3411 if(analyze_gradient){
3412 #ifdef REFINE_STATS
3413 {START_TIMER
3414 #endif
3415 for(i=0; i<64; i++){
3416 int w= weight[i];
3417
3418 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3419 }
3420 #ifdef REFINE_STATS
3421 STOP_TIMER("rem*w*w")}
3422 {START_TIMER
3423 #endif
3424 s->dsp.fdct(d1);
3425 #ifdef REFINE_STATS
3426 STOP_TIMER("dct")}
3427 #endif
3428 }
3429
3430 if(start_i){
3431 const int level= block[0];
3432 int change, old_coeff;
3433
3434 assert(s->mb_intra);
3435
3436 old_coeff= q*level;
3437
3438 for(change=-1; change<=1; change+=2){
3439 int new_level= level + change;
3440 int score, new_coeff;
3441
3442 new_coeff= q*new_level;
3443 if(new_coeff >= 2048 || new_coeff < 0)
3444 continue;
3445
3446 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3447 if(score<best_score){
3448 best_score= score;
3449 best_coeff= 0;
3450 best_change= change;
3451 best_unquant_change= new_coeff - old_coeff;
3452 }
3453 }
3454 }
3455
3456 run=0;
3457 rle_index=0;
3458 run2= run_tab[rle_index++];
3459 prev_level=0;
3460 prev_run=0;
3461
3462 for(i=start_i; i<64; i++){
3463 int j= perm_scantable[i];
3464 const int level= block[j];
3465 int change, old_coeff;
3466
3467 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3468 break;
3469
3470 if(level){
3471 if(level<0) old_coeff= qmul*level - qadd;
3472 else old_coeff= qmul*level + qadd;
3473 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3474 }else{
3475 old_coeff=0;
3476 run2--;
3477 assert(run2>=0 || i >= last_non_zero );
3478 }
3479
3480 for(change=-1; change<=1; change+=2){
3481 int new_level= level + change;
3482 int score, new_coeff, unquant_change;
3483
3484 score=0;
3485 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3486 continue;
3487
3488 if(new_level){
3489 if(new_level<0) new_coeff= qmul*new_level - qadd;
3490 else new_coeff= qmul*new_level + qadd;
3491 if(new_coeff >= 2048 || new_coeff <= -2048)
3492 continue;
3493 //FIXME check for overflow
3494
3495 if(level){
3496 if(level < 63 && level > -63){
3497 if(i < last_non_zero)
3498 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3499 - length[UNI_AC_ENC_INDEX(run, level+64)];
3500 else
3501 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3502 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3503 }
3504 }else{
3505 assert(FFABS(new_level)==1);
3506
3507 if(analyze_gradient){
3508 int g= d1[ scantable[i] ];
3509 if(g && (g^new_level) >= 0)
3510 continue;
3511 }
3512
3513 if(i < last_non_zero){
3514 int next_i= i + run2 + 1;
3515 int next_level= block[ perm_scantable[next_i] ] + 64;
3516
3517 if(next_level&(~127))
3518 next_level= 0;
3519
3520 if(next_i < last_non_zero)
3521 score += length[UNI_AC_ENC_INDEX(run, 65)]
3522 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3523 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3524 else
3525 score += length[UNI_AC_ENC_INDEX(run, 65)]
3526 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3527 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3528 }else{
3529 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3530 if(prev_level){
3531 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3532 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3533 }
3534 }
3535 }
3536 }else{
3537 new_coeff=0;
3538 assert(FFABS(level)==1);
3539
3540 if(i < last_non_zero){
3541 int next_i= i + run2 + 1;
3542 int next_level= block[ perm_scantable[next_i] ] + 64;
3543
3544 if(next_level&(~127))
3545 next_level= 0;
3546
3547 if(next_i < last_non_zero)
3548 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3549 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3550 - length[UNI_AC_ENC_INDEX(run, 65)];
3551 else
3552 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3553 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3554 - length[UNI_AC_ENC_INDEX(run, 65)];
3555 }else{
3556 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3557 if(prev_level){
3558 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3559 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3560 }
3561 }
3562 }
3563
3564 score *= lambda;
3565
3566 unquant_change= new_coeff - old_coeff;
3567 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3568
3569 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3570 if(score<best_score){
3571 best_score= score;
3572 best_coeff= i;
3573 best_change= change;
3574 best_unquant_change= unquant_change;
3575 }
3576 }
3577 if(level){
3578 prev_level= level + 64;
3579 if(prev_level&(~127))
3580 prev_level= 0;
3581 prev_run= run;
3582 run=0;
3583 }else{
3584 run++;
3585 }
3586 }
3587 #ifdef REFINE_STATS
3588 STOP_TIMER("iterative step")}
3589 #endif
3590
3591 if(best_change){
3592 int j= perm_scantable[ best_coeff ];
3593
3594 block[j] += best_change;
3595
3596 if(best_coeff > last_non_zero){
3597 last_non_zero= best_coeff;
3598 assert(block[j]);
3599 #ifdef REFINE_STATS
3600 after_last++;
3601 #endif
3602 }else{
3603 #ifdef REFINE_STATS
3604 if(block[j]){
3605 if(block[j] - best_change){
3606 if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3607 raise++;
3608 }else{
3609 lower++;
3610 }
3611 }else{
3612 from_zero++;
3613 }
3614 }else{
3615 to_zero++;
3616 }
3617 #endif
3618 for(; last_non_zero>=start_i; last_non_zero--){
3619 if(block[perm_scantable[last_non_zero]])
3620 break;
3621 }
3622 }
3623 #ifdef REFINE_STATS
3624 count++;
3625 if(256*256*256*64 % count == 0){
3626 printf("after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero, raise, lower, messed_sign, s->mb_x, s->mb_y, s->picture_number);
3627 }
3628 #endif
3629 run=0;
3630 rle_index=0;
3631 for(i=start_i; i<=last_non_zero; i++){
3632 int j= perm_scantable[i];
3633 const int level= block[j];
3634
3635 if(level){
3636 run_tab[rle_index++]=run;
3637 run=0;
3638 }else{
3639 run++;
3640 }
3641 }
3642
3643 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3644 }else{
3645 break;
3646 }
3647 }
3648 #ifdef REFINE_STATS
3649 if(last_non_zero>0){
3650 STOP_TIMER("iterative search")
3651 }
3652 }
3653 #endif
3654
3655 return last_non_zero;
3656 }
3657
dct_quantize_c(MpegEncContext * s,DCTELEM * block,int n,int qscale,int * overflow)3658 int dct_quantize_c(MpegEncContext *s,
3659 DCTELEM *block, int n,
3660 int qscale, int *overflow)
3661 {
3662 int i, j, level, last_non_zero, q, start_i;
3663 const int *qmat;
3664 const uint8_t *scantable= s->intra_scantable.scantable;
3665 int bias;
3666 int max=0;
3667 unsigned int threshold1, threshold2;
3668
3669 s->dsp.fdct (block);
3670
3671 if(s->dct_error_sum)
3672 s->denoise_dct(s, block);
3673
3674 if (s->mb_intra) {
3675 if (!s->h263_aic) {
3676 if (n < 4)
3677 q = s->y_dc_scale;
3678 else
3679 q = s->c_dc_scale;
3680 q = q << 3;
3681 } else
3682 /* For AIC we skip quant/dequant of INTRADC */
3683 q = 1 << 3;
3684
3685 /* note: block[0] is assumed to be positive */
3686 block[0] = (block[0] + (q >> 1)) / q;
3687 start_i = 1;
3688 last_non_zero = 0;
3689 qmat = s->q_intra_matrix[qscale];
3690 bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3691 } else {
3692 start_i = 0;
3693 last_non_zero = -1;
3694 qmat = s->q_inter_matrix[qscale];
3695 bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3696 }
3697 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3698 threshold2= (threshold1<<1);
3699 for(i=63;i>=start_i;i--) {
3700 j = scantable[i];
3701 level = block[j] * qmat[j];
3702
3703 if(((unsigned)(level+threshold1))>threshold2){
3704 last_non_zero = i;
3705 break;
3706 }else{
3707 block[j]=0;
3708 }
3709 }
3710 for(i=start_i; i<=last_non_zero; i++) {
3711 j = scantable[i];
3712 level = block[j] * qmat[j];
3713
3714 // if( bias+level >= (1<<QMAT_SHIFT)
3715 // || bias-level >= (1<<QMAT_SHIFT)){
3716 if(((unsigned)(level+threshold1))>threshold2){
3717 if(level>0){
3718 level= (bias + level)>>QMAT_SHIFT;
3719 block[j]= level;
3720 }else{
3721 level= (bias - level)>>QMAT_SHIFT;
3722 block[j]= -level;
3723 }
3724 max |=level;
3725 }else{
3726 block[j]=0;
3727 }
3728 }
3729 *overflow= s->max_qcoeff < max; //overflow might have happened
3730
3731 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3732 if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3733 ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3734
3735 return last_non_zero;
3736 }
3737
3738 AVCodec h263_encoder = {
3739 "h263",
3740 CODEC_TYPE_VIDEO,
3741 CODEC_ID_H263,
3742 sizeof(MpegEncContext),
3743 MPV_encode_init,
3744 MPV_encode_picture,
3745 MPV_encode_end,
3746 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3747 .long_name= "H.263",
3748 };
3749
3750 AVCodec h263p_encoder = {
3751 "h263p",
3752 CODEC_TYPE_VIDEO,
3753 CODEC_ID_H263P,
3754 sizeof(MpegEncContext),
3755 MPV_encode_init,
3756 MPV_encode_picture,
3757 MPV_encode_end,
3758 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3759 .long_name= "H.263+ / H.263 version 2",
3760 };
3761
3762 AVCodec flv_encoder = {
3763 "flv",
3764 CODEC_TYPE_VIDEO,
3765 CODEC_ID_FLV1,
3766 sizeof(MpegEncContext),
3767 MPV_encode_init,
3768 MPV_encode_picture,
3769 MPV_encode_end,
3770 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3771 .long_name= "Flash Video",
3772 };
3773
3774 AVCodec rv10_encoder = {
3775 "rv10",
3776 CODEC_TYPE_VIDEO,
3777 CODEC_ID_RV10,
3778 sizeof(MpegEncContext),
3779 MPV_encode_init,
3780 MPV_encode_picture,
3781 MPV_encode_end,
3782 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3783 .long_name= "RealVideo 1.0",
3784 };
3785
3786 AVCodec rv20_encoder = {
3787 "rv20",
3788 CODEC_TYPE_VIDEO,
3789 CODEC_ID_RV20,
3790 sizeof(MpegEncContext),
3791 MPV_encode_init,
3792 MPV_encode_picture,
3793 MPV_encode_end,
3794 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3795 .long_name= "RealVideo 2.0",
3796 };
3797
3798 AVCodec mpeg4_encoder = {
3799 "mpeg4",
3800 CODEC_TYPE_VIDEO,
3801 CODEC_ID_MPEG4,
3802 sizeof(MpegEncContext),
3803 MPV_encode_init,
3804 MPV_encode_picture,
3805 MPV_encode_end,
3806 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3807 .capabilities= CODEC_CAP_DELAY,
3808 .long_name= "MPEG-4 part 2",
3809 };
3810
3811 AVCodec msmpeg4v1_encoder = {
3812 "msmpeg4v1",
3813 CODEC_TYPE_VIDEO,
3814 CODEC_ID_MSMPEG4V1,
3815 sizeof(MpegEncContext),
3816 MPV_encode_init,
3817 MPV_encode_picture,
3818 MPV_encode_end,
3819 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3820 .long_name= "MPEG-4 part 2 Microsoft variant version 1",
3821 };
3822
3823 AVCodec msmpeg4v2_encoder = {
3824 "msmpeg4v2",
3825 CODEC_TYPE_VIDEO,
3826 CODEC_ID_MSMPEG4V2,
3827 sizeof(MpegEncContext),
3828 MPV_encode_init,
3829 MPV_encode_picture,
3830 MPV_encode_end,
3831 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3832 .long_name= "MPEG-4 part 2 Microsoft variant version 2",
3833 };
3834
3835 AVCodec msmpeg4v3_encoder = {
3836 "msmpeg4",
3837 CODEC_TYPE_VIDEO,
3838 CODEC_ID_MSMPEG4V3,
3839 sizeof(MpegEncContext),
3840 MPV_encode_init,
3841 MPV_encode_picture,
3842 MPV_encode_end,
3843 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3844 .long_name= "MPEG-4 part 2 Microsoft variant version 3",
3845 };
3846
3847 AVCodec wmv1_encoder = {
3848 "wmv1",
3849 CODEC_TYPE_VIDEO,
3850 CODEC_ID_WMV1,
3851 sizeof(MpegEncContext),
3852 MPV_encode_init,
3853 MPV_encode_picture,
3854 MPV_encode_end,
3855 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3856 .long_name= "Windows Media Video 7",
3857 };
3858