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svq1enc.c
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1 /*
2  * SVQ1 Encoder
3  * Copyright (C) 2004 Mike Melanson <melanson@pcisys.net>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * Sorenson Vector Quantizer #1 (SVQ1) video codec.
25  * For more information of the SVQ1 algorithm, visit:
26  * http://www.pcisys.net/~melanson/codecs/
27  */
28 
29 #include "avcodec.h"
30 #include "hpeldsp.h"
31 #include "me_cmp.h"
32 #include "mpegvideo.h"
33 #include "h263.h"
34 #include "internal.h"
35 #include "mpegutils.h"
36 #include "svq1.h"
37 #include "svq1enc.h"
38 #include "svq1enc_cb.h"
39 #include "libavutil/avassert.h"
40 
41 
42 static void svq1_write_header(SVQ1EncContext *s, int frame_type)
43 {
44  int i;
45 
46  /* frame code */
47  put_bits(&s->pb, 22, 0x20);
48 
49  /* temporal reference (sure hope this is a "don't care") */
50  put_bits(&s->pb, 8, 0x00);
51 
52  /* frame type */
53  put_bits(&s->pb, 2, frame_type - 1);
54 
55  if (frame_type == AV_PICTURE_TYPE_I) {
56  /* no checksum since frame code is 0x20 */
57  /* no embedded string either */
58  /* output 5 unknown bits (2 + 2 + 1) */
59  put_bits(&s->pb, 5, 2); /* 2 needed by quicktime decoder */
60 
63  s->frame_width, s->frame_height);
64  put_bits(&s->pb, 3, i);
65 
66  if (i == 7) {
67  put_bits(&s->pb, 12, s->frame_width);
68  put_bits(&s->pb, 12, s->frame_height);
69  }
70  }
71 
72  /* no checksum or extra data (next 2 bits get 0) */
73  put_bits(&s->pb, 2, 0);
74 }
75 
76 #define QUALITY_THRESHOLD 100
77 #define THRESHOLD_MULTIPLIER 0.6
78 
79 static int ssd_int8_vs_int16_c(const int8_t *pix1, const int16_t *pix2,
80  intptr_t size)
81 {
82  int score = 0, i;
83 
84  for (i = 0; i < size; i++)
85  score += (pix1[i] - pix2[i]) * (pix1[i] - pix2[i]);
86  return score;
87 }
88 
90  uint8_t *decoded, int stride, int level,
91  int threshold, int lambda, int intra)
92 {
93  int count, y, x, i, j, split, best_mean, best_score, best_count;
94  int best_vector[6];
95  int block_sum[7] = { 0, 0, 0, 0, 0, 0 };
96  int w = 2 << (level + 2 >> 1);
97  int h = 2 << (level + 1 >> 1);
98  int size = w * h;
99  int16_t (*block)[256] = s->encoded_block_levels[level];
100  const int8_t *codebook_sum, *codebook;
101  const uint16_t(*mean_vlc)[2];
102  const uint8_t(*multistage_vlc)[2];
103 
104  best_score = 0;
105  // FIXME: Optimize, this does not need to be done multiple times.
106  if (intra) {
107  codebook_sum = svq1_intra_codebook_sum[level];
108  codebook = ff_svq1_intra_codebooks[level];
109  mean_vlc = ff_svq1_intra_mean_vlc;
110  multistage_vlc = ff_svq1_intra_multistage_vlc[level];
111  for (y = 0; y < h; y++) {
112  for (x = 0; x < w; x++) {
113  int v = src[x + y * stride];
114  block[0][x + w * y] = v;
115  best_score += v * v;
116  block_sum[0] += v;
117  }
118  }
119  } else {
120  codebook_sum = svq1_inter_codebook_sum[level];
121  codebook = ff_svq1_inter_codebooks[level];
122  mean_vlc = ff_svq1_inter_mean_vlc + 256;
123  multistage_vlc = ff_svq1_inter_multistage_vlc[level];
124  for (y = 0; y < h; y++) {
125  for (x = 0; x < w; x++) {
126  int v = src[x + y * stride] - ref[x + y * stride];
127  block[0][x + w * y] = v;
128  best_score += v * v;
129  block_sum[0] += v;
130  }
131  }
132  }
133 
134  best_count = 0;
135  best_score -= (int)((unsigned)block_sum[0] * block_sum[0] >> (level + 3));
136  best_mean = block_sum[0] + (size >> 1) >> (level + 3);
137 
138  if (level < 4) {
139  for (count = 1; count < 7; count++) {
140  int best_vector_score = INT_MAX;
141  int best_vector_sum = -999, best_vector_mean = -999;
142  const int stage = count - 1;
143  const int8_t *vector;
144 
145  for (i = 0; i < 16; i++) {
146  int sum = codebook_sum[stage * 16 + i];
147  int sqr, diff, score;
148 
149  vector = codebook + stage * size * 16 + i * size;
150  sqr = s->ssd_int8_vs_int16(vector, block[stage], size);
151  diff = block_sum[stage] - sum;
152  score = sqr - (diff * (int64_t)diff >> (level + 3)); // FIXME: 64bit slooow
153  if (score < best_vector_score) {
154  int mean = diff + (size >> 1) >> (level + 3);
155  av_assert2(mean > -300 && mean < 300);
156  mean = av_clip(mean, intra ? 0 : -256, 255);
157  best_vector_score = score;
158  best_vector[stage] = i;
159  best_vector_sum = sum;
160  best_vector_mean = mean;
161  }
162  }
163  av_assert0(best_vector_mean != -999);
164  vector = codebook + stage * size * 16 + best_vector[stage] * size;
165  for (j = 0; j < size; j++)
166  block[stage + 1][j] = block[stage][j] - vector[j];
167  block_sum[stage + 1] = block_sum[stage] - best_vector_sum;
168  best_vector_score += lambda *
169  (+1 + 4 * count +
170  multistage_vlc[1 + count][1]
171  + mean_vlc[best_vector_mean][1]);
172 
173  if (best_vector_score < best_score) {
174  best_score = best_vector_score;
175  best_count = count;
176  best_mean = best_vector_mean;
177  }
178  }
179  }
180 
181  split = 0;
182  if (best_score > threshold && level) {
183  int score = 0;
184  int offset = level & 1 ? stride * h / 2 : w / 2;
185  PutBitContext backup[6];
186 
187  for (i = level - 1; i >= 0; i--)
188  backup[i] = s->reorder_pb[i];
189  score += encode_block(s, src, ref, decoded, stride, level - 1,
190  threshold >> 1, lambda, intra);
191  score += encode_block(s, src + offset, ref + offset, decoded + offset,
192  stride, level - 1, threshold >> 1, lambda, intra);
193  score += lambda;
194 
195  if (score < best_score) {
196  best_score = score;
197  split = 1;
198  } else {
199  for (i = level - 1; i >= 0; i--)
200  s->reorder_pb[i] = backup[i];
201  }
202  }
203  if (level > 0)
204  put_bits(&s->reorder_pb[level], 1, split);
205 
206  if (!split) {
207  av_assert1(best_mean >= 0 && best_mean < 256 || !intra);
208  av_assert1(best_mean >= -256 && best_mean < 256);
209  av_assert1(best_count >= 0 && best_count < 7);
210  av_assert1(level < 4 || best_count == 0);
211 
212  /* output the encoding */
213  put_bits(&s->reorder_pb[level],
214  multistage_vlc[1 + best_count][1],
215  multistage_vlc[1 + best_count][0]);
216  put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],
217  mean_vlc[best_mean][0]);
218 
219  for (i = 0; i < best_count; i++) {
220  av_assert2(best_vector[i] >= 0 && best_vector[i] < 16);
221  put_bits(&s->reorder_pb[level], 4, best_vector[i]);
222  }
223 
224  for (y = 0; y < h; y++)
225  for (x = 0; x < w; x++)
226  decoded[x + y * stride] = src[x + y * stride] -
227  block[best_count][x + w * y] +
228  best_mean;
229  }
230 
231  return best_score;
232 }
233 
235  s->block_index[0]= s->b8_stride*(s->mb_y*2 ) + s->mb_x*2;
236  s->block_index[1]= s->b8_stride*(s->mb_y*2 ) + 1 + s->mb_x*2;
237  s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) + s->mb_x*2;
238  s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) + 1 + s->mb_x*2;
239  s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x;
240  s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x;
241 }
242 
244  unsigned char *src_plane,
245  unsigned char *ref_plane,
246  unsigned char *decoded_plane,
247  int width, int height, int src_stride, int stride)
248 {
249  const AVFrame *f = s->avctx->coded_frame;
250  int x, y;
251  int i;
252  int block_width, block_height;
253  int level;
254  int threshold[6];
255  uint8_t *src = s->scratchbuf + stride * 32;
256  const int lambda = (f->quality * f->quality) >>
257  (2 * FF_LAMBDA_SHIFT);
258 
259  /* figure out the acceptable level thresholds in advance */
260  threshold[5] = QUALITY_THRESHOLD;
261  for (level = 4; level >= 0; level--)
262  threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER;
263 
264  block_width = (width + 15) / 16;
265  block_height = (height + 15) / 16;
266 
267  if (f->pict_type == AV_PICTURE_TYPE_P) {
268  s->m.avctx = s->avctx;
270  s->m.last_picture_ptr = &s->m.last_picture;
271  s->m.last_picture.f->data[0] = ref_plane;
272  s->m.linesize =
273  s->m.last_picture.f->linesize[0] =
274  s->m.new_picture.f->linesize[0] =
275  s->m.current_picture.f->linesize[0] = stride;
276  s->m.width = width;
277  s->m.height = height;
278  s->m.mb_width = block_width;
279  s->m.mb_height = block_height;
280  s->m.mb_stride = s->m.mb_width + 1;
281  s->m.b8_stride = 2 * s->m.mb_width + 1;
282  s->m.f_code = 1;
283  s->m.pict_type = f->pict_type;
284  s->m.me_method = s->avctx->me_method;
285  s->m.me.scene_change_score = 0;
286  // s->m.out_format = FMT_H263;
287  // s->m.unrestricted_mv = 1;
288  s->m.lambda = f->quality;
289  s->m.qscale = s->m.lambda * 139 +
290  FF_LAMBDA_SCALE * 64 >>
291  FF_LAMBDA_SHIFT + 7;
292  s->m.lambda2 = s->m.lambda * s->m.lambda +
293  FF_LAMBDA_SCALE / 2 >>
295 
296  if (!s->motion_val8[plane]) {
298  block_height * 2 + 2) *
299  2 * sizeof(int16_t));
301  (block_height + 2) + 1) *
302  2 * sizeof(int16_t));
303  if (!s->motion_val8[plane] || !s->motion_val16[plane])
304  return AVERROR(ENOMEM);
305  }
306 
307  s->m.mb_type = s->mb_type;
308 
309  // dummies, to avoid segfaults
311  s->m.current_picture.mb_var = (uint16_t *)s->dummy;
312  s->m.current_picture.mc_mb_var = (uint16_t *)s->dummy;
313  s->m.current_picture.mb_type = s->dummy;
314 
315  s->m.current_picture.motion_val[0] = s->motion_val8[plane] + 2;
316  s->m.p_mv_table = s->motion_val16[plane] +
317  s->m.mb_stride + 1;
318  s->m.mecc = s->mecc; // move
319  ff_init_me(&s->m);
320 
321  s->m.me.dia_size = s->avctx->dia_size;
322  s->m.first_slice_line = 1;
323  for (y = 0; y < block_height; y++) {
324  s->m.new_picture.f->data[0] = src - y * 16 * stride; // ugly
325  s->m.mb_y = y;
326 
327  for (i = 0; i < 16 && i + 16 * y < height; i++) {
328  memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
329  width);
330  for (x = width; x < 16 * block_width; x++)
331  src[i * stride + x] = src[i * stride + x - 1];
332  }
333  for (; i < 16 && i + 16 * y < 16 * block_height; i++)
334  memcpy(&src[i * stride], &src[(i - 1) * stride],
335  16 * block_width);
336 
337  for (x = 0; x < block_width; x++) {
338  s->m.mb_x = x;
339  init_block_index(&s->m);
340 
341  ff_estimate_p_frame_motion(&s->m, x, y);
342  }
343  s->m.first_slice_line = 0;
344  }
345 
346  ff_fix_long_p_mvs(&s->m);
347  ff_fix_long_mvs(&s->m, NULL, 0, s->m.p_mv_table, s->m.f_code,
349  }
350 
351  s->m.first_slice_line = 1;
352  for (y = 0; y < block_height; y++) {
353  for (i = 0; i < 16 && i + 16 * y < height; i++) {
354  memcpy(&src[i * stride], &src_plane[(i + 16 * y) * src_stride],
355  width);
356  for (x = width; x < 16 * block_width; x++)
357  src[i * stride + x] = src[i * stride + x - 1];
358  }
359  for (; i < 16 && i + 16 * y < 16 * block_height; i++)
360  memcpy(&src[i * stride], &src[(i - 1) * stride], 16 * block_width);
361 
362  s->m.mb_y = y;
363  for (x = 0; x < block_width; x++) {
364  uint8_t reorder_buffer[2][6][7 * 32];
365  int count[2][6];
366  int offset = y * 16 * stride + x * 16;
367  uint8_t *decoded = decoded_plane + offset;
368  uint8_t *ref = ref_plane + offset;
369  int score[4] = { 0, 0, 0, 0 }, best;
370  uint8_t *temp = s->scratchbuf;
371 
372  if (s->pb.buf_end - s->pb.buf -
373  (put_bits_count(&s->pb) >> 3) < 3000) { // FIXME: check size
374  av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
375  return -1;
376  }
377 
378  s->m.mb_x = x;
379  init_block_index(&s->m);
380 
381  if (f->pict_type == AV_PICTURE_TYPE_I ||
382  (s->m.mb_type[x + y * s->m.mb_stride] &
384  for (i = 0; i < 6; i++)
385  init_put_bits(&s->reorder_pb[i], reorder_buffer[0][i],
386  7 * 32);
387  if (f->pict_type == AV_PICTURE_TYPE_P) {
389  put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);
390  score[0] = vlc[1] * lambda;
391  }
392  score[0] += encode_block(s, src + 16 * x, NULL, temp, stride,
393  5, 64, lambda, 1);
394  for (i = 0; i < 6; i++) {
395  count[0][i] = put_bits_count(&s->reorder_pb[i]);
396  flush_put_bits(&s->reorder_pb[i]);
397  }
398  } else
399  score[0] = INT_MAX;
400 
401  best = 0;
402 
403  if (f->pict_type == AV_PICTURE_TYPE_P) {
405  int mx, my, pred_x, pred_y, dxy;
406  int16_t *motion_ptr;
407 
408  motion_ptr = ff_h263_pred_motion(&s->m, 0, 0, &pred_x, &pred_y);
409  if (s->m.mb_type[x + y * s->m.mb_stride] &
411  for (i = 0; i < 6; i++)
412  init_put_bits(&s->reorder_pb[i], reorder_buffer[1][i],
413  7 * 32);
414 
415  put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);
416 
417  s->m.pb = s->reorder_pb[5];
418  mx = motion_ptr[0];
419  my = motion_ptr[1];
420  av_assert1(mx >= -32 && mx <= 31);
421  av_assert1(my >= -32 && my <= 31);
422  av_assert1(pred_x >= -32 && pred_x <= 31);
423  av_assert1(pred_y >= -32 && pred_y <= 31);
424  ff_h263_encode_motion(&s->m.pb, mx - pred_x, 1);
425  ff_h263_encode_motion(&s->m.pb, my - pred_y, 1);
426  s->reorder_pb[5] = s->m.pb;
427  score[1] += lambda * put_bits_count(&s->reorder_pb[5]);
428 
429  dxy = (mx & 1) + 2 * (my & 1);
430 
431  s->hdsp.put_pixels_tab[0][dxy](temp + 16*stride,
432  ref + (mx >> 1) +
433  stride * (my >> 1),
434  stride, 16);
435 
436  score[1] += encode_block(s, src + 16 * x, temp + 16*stride,
437  decoded, stride, 5, 64, lambda, 0);
438  best = score[1] <= score[0];
439 
441  score[2] = s->mecc.sse[0](NULL, src + 16 * x, ref,
442  stride, 16);
443  score[2] += vlc[1] * lambda;
444  if (score[2] < score[best] && mx == 0 && my == 0) {
445  best = 2;
446  s->hdsp.put_pixels_tab[0][0](decoded, ref, stride, 16);
447  put_bits(&s->pb, vlc[1], vlc[0]);
448  }
449  }
450 
451  if (best == 1) {
452  for (i = 0; i < 6; i++) {
453  count[1][i] = put_bits_count(&s->reorder_pb[i]);
454  flush_put_bits(&s->reorder_pb[i]);
455  }
456  } else {
457  motion_ptr[0] =
458  motion_ptr[1] =
459  motion_ptr[2] =
460  motion_ptr[3] =
461  motion_ptr[0 + 2 * s->m.b8_stride] =
462  motion_ptr[1 + 2 * s->m.b8_stride] =
463  motion_ptr[2 + 2 * s->m.b8_stride] =
464  motion_ptr[3 + 2 * s->m.b8_stride] = 0;
465  }
466  }
467 
468  s->rd_total += score[best];
469 
470  if (best != 2)
471  for (i = 5; i >= 0; i--)
472  avpriv_copy_bits(&s->pb, reorder_buffer[best][i],
473  count[best][i]);
474  if (best == 0)
475  s->hdsp.put_pixels_tab[0][0](decoded, temp, stride, 16);
476  }
477  s->m.first_slice_line = 0;
478  }
479  return 0;
480 }
481 
483 {
484  SVQ1EncContext *const s = avctx->priv_data;
485  int i;
486 
487  av_log(avctx, AV_LOG_DEBUG, "RD: %f\n",
488  s->rd_total / (double)(avctx->width * avctx->height *
489  avctx->frame_number));
490 
491  s->m.mb_type = NULL;
492  ff_mpv_common_end(&s->m);
493 
494  av_freep(&s->m.me.scratchpad);
495  av_freep(&s->m.me.map);
496  av_freep(&s->m.me.score_map);
497  av_freep(&s->mb_type);
498  av_freep(&s->dummy);
499  av_freep(&s->scratchbuf);
500 
501  for (i = 0; i < 3; i++) {
502  av_freep(&s->motion_val8[i]);
503  av_freep(&s->motion_val16[i]);
504  }
505 
508  av_frame_free(&avctx->coded_frame);
509 
510  return 0;
511 }
512 
514 {
515  SVQ1EncContext *const s = avctx->priv_data;
516  int ret;
517 
518  ff_hpeldsp_init(&s->hdsp, avctx->flags);
519  ff_me_cmp_init(&s->mecc, avctx);
520  ff_mpegvideoencdsp_init(&s->m.mpvencdsp, avctx);
521 
522  avctx->coded_frame = av_frame_alloc();
525  if (!avctx->coded_frame || !s->current_picture || !s->last_picture) {
526  svq1_encode_end(avctx);
527  return AVERROR(ENOMEM);
528  }
529 
530  s->frame_width = avctx->width;
531  s->frame_height = avctx->height;
532 
533  s->y_block_width = (s->frame_width + 15) / 16;
534  s->y_block_height = (s->frame_height + 15) / 16;
535 
536  s->c_block_width = (s->frame_width / 4 + 15) / 16;
537  s->c_block_height = (s->frame_height / 4 + 15) / 16;
538 
539  s->avctx = avctx;
540  s->m.avctx = avctx;
541 
542  if ((ret = ff_mpv_common_init(&s->m)) < 0) {
543  svq1_encode_end(avctx);
544  return ret;
545  }
546 
548  s->m.me.temp =
549  s->m.me.scratchpad = av_mallocz((avctx->width + 64) *
550  2 * 16 * 2 * sizeof(uint8_t));
551  s->m.me.map = av_mallocz(ME_MAP_SIZE * sizeof(uint32_t));
552  s->m.me.score_map = av_mallocz(ME_MAP_SIZE * sizeof(uint32_t));
553  s->mb_type = av_mallocz((s->y_block_width + 1) *
554  s->y_block_height * sizeof(int16_t));
555  s->dummy = av_mallocz((s->y_block_width + 1) *
556  s->y_block_height * sizeof(int32_t));
558 
559  if (!s->m.me.temp || !s->m.me.scratchpad || !s->m.me.map ||
560  !s->m.me.score_map || !s->mb_type || !s->dummy) {
561  svq1_encode_end(avctx);
562  return AVERROR(ENOMEM);
563  }
564 
565  if (ARCH_PPC)
567  if (ARCH_X86)
569 
570  ff_h263_encode_init(&s->m); // mv_penalty
571 
572  return 0;
573 }
574 
576  const AVFrame *pict, int *got_packet)
577 {
578  SVQ1EncContext *const s = avctx->priv_data;
579  AVFrame *const p = avctx->coded_frame;
580  int i, ret;
581 
582  if ((ret = ff_alloc_packet2(avctx, pkt, s->y_block_width * s->y_block_height *
584  return ret;
585 
586  if (avctx->pix_fmt != AV_PIX_FMT_YUV410P) {
587  av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");
588  return -1;
589  }
590 
591  if (!s->current_picture->data[0]) {
592  if ((ret = ff_get_buffer(avctx, s->current_picture, 0)) < 0) {
593  return ret;
594  }
595  }
596  if (!s->last_picture->data[0]) {
597  ret = ff_get_buffer(avctx, s->last_picture, 0);
598  if (ret < 0)
599  return ret;
600  }
601  if (!s->scratchbuf) {
602  s->scratchbuf = av_malloc_array(s->current_picture->linesize[0], 16 * 3);
603  if (!s->scratchbuf)
604  return AVERROR(ENOMEM);
605  }
606 
608 
609  init_put_bits(&s->pb, pkt->data, pkt->size);
610 
611  p->pict_type = avctx->gop_size && avctx->frame_number % avctx->gop_size ?
614  p->quality = pict->quality;
615 
617  for (i = 0; i < 3; i++)
618  if (svq1_encode_plane(s, i,
619  pict->data[i],
620  s->last_picture->data[i],
621  s->current_picture->data[i],
622  s->frame_width / (i ? 4 : 1),
623  s->frame_height / (i ? 4 : 1),
624  pict->linesize[i],
625  s->current_picture->linesize[i]) < 0) {
626  int j;
627  for (j = 0; j < i; j++) {
628  av_freep(&s->motion_val8[j]);
629  av_freep(&s->motion_val16[j]);
630  }
631  av_freep(&s->scratchbuf);
632  return -1;
633  }
634 
635  // avpriv_align_put_bits(&s->pb);
636  while (put_bits_count(&s->pb) & 31)
637  put_bits(&s->pb, 1, 0);
638 
639  flush_put_bits(&s->pb);
640 
641  pkt->size = put_bits_count(&s->pb) / 8;
642  if (p->pict_type == AV_PICTURE_TYPE_I)
643  pkt->flags |= AV_PKT_FLAG_KEY;
644  *got_packet = 1;
645 
646  return 0;
647 }
648 
650  .name = "svq1",
651  .long_name = NULL_IF_CONFIG_SMALL("Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1"),
652  .type = AVMEDIA_TYPE_VIDEO,
653  .id = AV_CODEC_ID_SVQ1,
654  .priv_data_size = sizeof(SVQ1EncContext),
656  .encode2 = svq1_encode_frame,
657  .close = svq1_encode_end,
658  .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV410P,
659  AV_PIX_FMT_NONE },
660 };
uint8_t * scratchpad
data area for the ME algo, so that the ME does not need to malloc/free.
Definition: motion_est.h:42
int plane
Definition: avisynth_c.h:291
av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp.c:936
#define NULL
Definition: coverity.c:32
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1736
float v
const char * s
Definition: avisynth_c.h:631
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
uint16_t * mb_type
Definition: svq1enc.h:64
int16_t(* p_mv_table)[2]
MV table (1MV per MB) p-frame encoding.
Definition: mpegvideo.h:317
void ff_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:889
uint8_t * mb_mean
Table for MB luminance.
Definition: mpegvideo.h:118
#define THRESHOLD_MULTIPLIER
Definition: svq1enc.c:77
int frame_height
Definition: svq1enc.h:52
MpegEncContext m
Definition: svq1enc.h:38
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
Definition: j2kenc.c:160
else temp
Definition: vf_mcdeint.c:257
void ff_h263_encode_init(MpegEncContext *s)
Definition: ituh263enc.c:761
AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2745
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
uint16_t * mb_var
Table for MB variances.
Definition: mpegvideo.h:109
AVFrame * current_picture
Definition: svq1enc.h:42
int size
Definition: avcodec.h:1163
void avpriv_copy_bits(PutBitContext *pb, const uint8_t *src, int length)
Copy the content of src to the bitstream.
Definition: bitstream.c:64
static int svq1_encode_plane(SVQ1EncContext *s, int plane, unsigned char *src_plane, unsigned char *ref_plane, unsigned char *decoded_plane, int width, int height, int src_stride, int stride)
Definition: svq1enc.c:243
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1444
int c_block_height
Definition: svq1enc.h:60
uint32_t * score_map
map to store the scores
Definition: motion_est.h:49
mpegvideo header.
#define FF_ARRAY_ELEMS(a)
int scene_change_score
Definition: motion_est.h:77
static AVPacket pkt
#define SVQ1_BLOCK_INTRA
Definition: svq1.h:43
#define FF_LAMBDA_SHIFT
Definition: avutil.h:218
AVCodec.
Definition: avcodec.h:3181
int qscale
QP.
Definition: mpegvideo.h:273
int16_t * ff_h263_pred_motion(MpegEncContext *s, int block, int dir, int *px, int *py)
Definition: h263.c:313
void ff_h263_encode_motion(PutBitContext *pb, int val, int f_code)
Definition: ituh263enc.c:646
svq1 code books.
static const int8_t svq1_intra_codebook_sum[4][16 *6]
Definition: svq1enc_cb.h:59
static void init_block_index(MpegEncContext *s)
Definition: svq1enc.c:234
const uint16_t ff_svq1_frame_size_table[7][2]
Definition: svq1.c:40
#define SVQ1_BLOCK_SKIP
Definition: svq1.h:40
#define CANDIDATE_MB_TYPE_INTER
Definition: mpegutils.h:101
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
static av_cold int svq1_encode_init(AVCodecContext *avctx)
Definition: svq1enc.c:513
int y_block_height
Definition: svq1enc.h:56
av_cold void ff_mpegvideoencdsp_init(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
uint8_t
#define av_cold
Definition: attributes.h:74
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:135
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:63
int frame_width
Definition: svq1enc.h:51
const int8_t *const ff_svq1_inter_codebooks[6]
Definition: svq1_cb.h:776
int16_t encoded_block_levels[6][7][256]
Definition: svq1enc.h:62
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:249
uint8_t * data
Definition: avcodec.h:1162
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:198
ptrdiff_t size
Definition: opengl_enc.c:101
#define av_log(a,...)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1208
int c_block_width
Definition: svq1enc.h:59
static int ssd_int8_vs_int16_c(const int8_t *pix1, const int16_t *pix2, intptr_t size)
Definition: svq1enc.c:79
int64_t rd_total
Definition: svq1enc.h:69
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define AVERROR(e)
Definition: error.h:43
uint8_t * scratchbuf
Definition: svq1enc.h:71
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:148
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int y_block_width
Definition: svq1enc.h:55
int flags
CODEC_FLAG_*.
Definition: avcodec.h:1335
uint8_t * buf
Definition: put_bits.h:38
simple assert() macros that are a bit more flexible than ISO C assert().
MpegvideoEncDSPContext mpvencdsp
Definition: mpegvideo.h:302
const char * name
Name of the codec implementation.
Definition: avcodec.h:3188
int16_t(*[3] motion_val16)[2]
Definition: svq1enc.h:67
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
Definition: mpegvideo.h:358
#define SVQ1_BLOCK_INTER
Definition: svq1.h:41
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
GLsizei count
Definition: opengl_enc.c:109
void ff_mpv_common_end(MpegEncContext *s)
Definition: mpegvideo.c:1474
Libavcodec external API header.
static int encode_block(SVQ1EncContext *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra)
Definition: svq1enc.c:89
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1168
Sorenson Vector Quantizer #1 (SVQ1) video codec.
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:85
static char * split(char *message, char delim)
Definition: af_channelmap.c:82
av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
Definition: hpeldsp.c:338
PutBitContext reorder_pb[6]
Definition: svq1enc.h:49
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:242
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:53
float y
#define FF_MIN_BUFFER_SIZE
minimum encoding buffer size Used to avoid some checks during header writing.
Definition: avcodec.h:637
#define MAX_MB_BYTES
Definition: mpegvideo.h:70
int me_method
ME algorithm.
Definition: mpegvideo.h:327
Picture new_picture
copy of the source picture structure for encoding.
Definition: mpegvideo.h:243
const uint8_t ff_svq1_block_type_vlc[4][2]
Definition: svq1_vlc.h:27
ret
Definition: avfilter.c:974
int width
picture width / height.
Definition: avcodec.h:1414
int16_t(*[2] motion_val)[2]
Definition: mpegvideo.h:97
Picture * current_picture_ptr
pointer to the current picture
Definition: mpegvideo.h:253
MECmpContext mecc
Definition: svq1enc.h:40
int32_t
AVCodec ff_svq1_encoder
Definition: svq1enc.c:649
int(* ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2, intptr_t size)
Definition: svq1enc.h:73
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:283
MotionEstContext me
Definition: mpegvideo.h:349
#define ME_MAP_SIZE
Definition: mpegvideo.h:68
const uint8_t ff_svq1_inter_multistage_vlc[6][8][2]
Definition: svq1_vlc.h:50
int block_index[6]
index to current MB in block based arrays with edges
Definition: mpegvideo.h:360
static av_cold int svq1_encode_end(AVCodecContext *avctx)
Definition: svq1enc.c:482
PutBitContext pb
Definition: svq1enc.h:44
int first_slice_line
used in mpeg4 too to handle resync markers
Definition: mpegvideo.h:497
uint16_t * mc_mb_var
Table for motion compensated MB variances.
Definition: mpegvideo.h:112
int16_t(*[3] motion_val8)[2]
Definition: svq1enc.h:66
Half-pel DSP functions.
#define FF_LAMBDA_SCALE
Definition: avutil.h:219
AVS_Value src
Definition: avisynth_c.h:482
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Definition: mpegvideo.h:276
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:203
static void svq1_write_header(SVQ1EncContext *s, int frame_type)
Definition: svq1enc.c:42
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:199
av_cold void ff_svq1enc_init_ppc(SVQ1EncContext *c)
main external API structure.
Definition: avcodec.h:1241
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:169
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: utils.c:1035
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:56
uint8_t * buf_end
Definition: put_bits.h:38
void ff_fix_long_p_mvs(MpegEncContext *s)
Definition: motion_est.c:1674
BYTE int const BYTE int int int height
Definition: avisynth_c.h:676
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:69
struct AVFrame * f
Definition: mpegvideo.h:90
int f_code
forward MV resolution
Definition: mpegvideo.h:307
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:281
void ff_svq1enc_init_x86(SVQ1EncContext *c)
Definition: svq1enc_init.c:32
AVFrame * last_picture
Definition: svq1enc.h:43
int ff_init_me(MpegEncContext *s)
Definition: motion_est.c:306
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:182
uint8_t level
Definition: svq3.c:150
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:200
me_cmp_func sse[6]
Definition: me_cmp.h:57
MpegEncContext.
Definition: mpegvideo.h:150
struct AVCodecContext * avctx
Definition: mpegvideo.h:167
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1435
PutBitContext pb
bit output
Definition: mpegvideo.h:220
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
MECmpContext mecc
Definition: mpegvideo.h:300
const int8_t *const ff_svq1_intra_codebooks[6]
Definition: svq1_cb.h:1519
common internal api header.
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:199
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
Definition: put_bits.h:101
AVCodecContext * avctx
Definition: svq1enc.h:39
const uint8_t ff_svq1_intra_multistage_vlc[6][8][2]
Definition: svq1_vlc.h:33
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:231
Picture * last_picture_ptr
pointer to the previous picture.
Definition: mpegvideo.h:251
static const int8_t svq1_inter_codebook_sum[4][16 *6]
Definition: svq1enc_cb.h:32
const uint16_t ff_svq1_inter_mean_vlc[512][2]
Definition: svq1_vlc.h:136
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
Definition: put_bits.h:48
uint32_t * map
map to avoid duplicate evaluations
Definition: motion_est.h:48
#define CANDIDATE_MB_TYPE_INTRA
Definition: mpegutils.h:100
void * priv_data
Definition: avcodec.h:1283
#define PICT_FRAME
Definition: mpegutils.h:35
av_cold int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
Definition: mpegvideo.c:1234
static av_always_inline int diff(const uint32_t a, const uint32_t b)
int picture_structure
Definition: mpegvideo.h:521
int dia_size
ME diamond size & shape.
Definition: avcodec.h:1671
uint32_t * dummy
Definition: svq1enc.h:65
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:237
void ff_fix_long_mvs(MpegEncContext *s, uint8_t *field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)
Definition: motion_est.c:1724
static int svq1_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pict, int *got_packet)
Definition: svq1enc.c:575
HpelDSPContext hdsp
Definition: svq1enc.h:41
int frame_number
Frame counter, set by libavcodec.
Definition: avcodec.h:2016
uint32_t * mb_type
types and macros are defined in mpegutils.h
Definition: mpegvideo.h:100
#define av_freep(p)
uint8_t * temp
Definition: motion_est.h:46
#define av_malloc_array(a, b)
#define FFSWAP(type, a, b)
Definition: common.h:69
#define QUALITY_THRESHOLD
Definition: svq1enc.c:76
int me_method
Motion estimation algorithm used for video coding.
Definition: avcodec.h:1453
#define stride
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
This structure stores compressed data.
Definition: avcodec.h:1139
const uint16_t ff_svq1_intra_mean_vlc[256][2]
Definition: svq1_vlc.h:67
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:250
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
Definition: utils.c:3535
Predicted.
Definition: avutil.h:268
unsigned int lambda
lagrange multipler used in rate distortion
Definition: mpegvideo.h:275
static int width
static int16_t block[64]
Definition: dct-test.c:110