FFmpeg
libx264.c
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1 /*
2  * H.264 encoding using the x264 library
3  * Copyright (C) 2005 Mans Rullgard <mans@mansr.com>
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 #include "libavutil/eval.h"
23 #include "libavutil/internal.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/mem.h"
26 #include "libavutil/pixdesc.h"
27 #include "libavutil/stereo3d.h"
28 #include "libavutil/time.h"
29 #include "libavutil/intreadwrite.h"
30 #include "avcodec.h"
31 #include "internal.h"
32 
33 #if defined(_MSC_VER)
34 #define X264_API_IMPORTS 1
35 #endif
36 
37 #include <x264.h>
38 #include <float.h>
39 #include <math.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 
44 // from x264.h, for quant_offsets, Macroblocks are 16x16
45 // blocks of pixels (with respect to the luma plane)
46 #define MB_SIZE 16
47 
48 typedef struct X264Opaque {
50  int64_t wallclock;
51 } X264Opaque;
52 
53 typedef struct X264Context {
54  AVClass *class;
55  x264_param_t params;
56  x264_t *enc;
57  x264_picture_t pic;
59  int sei_size;
60  char *preset;
61  char *tune;
62  char *profile;
63  char *level;
65  char *wpredp;
66  char *x264opts;
67  float crf;
68  float crf_max;
69  int cqp;
70  int aq_mode;
71  float aq_strength;
72  char *psy_rd;
73  int psy;
75  int weightp;
76  int weightb;
77  int ssim;
80  int b_bias;
81  int b_pyramid;
83  int dct8x8;
85  int aud;
86  int mbtree;
87  char *deblock;
88  float cplxblur;
89  char *partitions;
92  char *stats;
93  int nal_hrd;
97  int coder;
98  int a53_cc;
103 
105 
106  int nb_reordered_opaque, next_reordered_opaque;
108 
109  /**
110  * If the encoder does not support ROI then warn the first time we
111  * encounter a frame with ROI side data.
112  */
114 } X264Context;
115 
116 static void X264_log(void *p, int level, const char *fmt, va_list args)
117 {
118  static const int level_map[] = {
119  [X264_LOG_ERROR] = AV_LOG_ERROR,
120  [X264_LOG_WARNING] = AV_LOG_WARNING,
121  [X264_LOG_INFO] = AV_LOG_INFO,
122  [X264_LOG_DEBUG] = AV_LOG_DEBUG
123  };
124 
125  if (level < 0 || level > X264_LOG_DEBUG)
126  return;
127 
128  av_vlog(p, level_map[level], fmt, args);
129 }
130 
131 
133  const x264_nal_t *nals, int nnal)
134 {
135  X264Context *x4 = ctx->priv_data;
136  uint8_t *p;
137  int i, size = x4->sei_size, ret;
138 
139  if (!nnal)
140  return 0;
141 
142  for (i = 0; i < nnal; i++)
143  size += nals[i].i_payload;
144 
145  if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
146  return ret;
147 
148  p = pkt->data;
149 
150  /* Write the SEI as part of the first frame. */
151  if (x4->sei_size > 0 && nnal > 0) {
152  if (x4->sei_size > size) {
153  av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
154  return -1;
155  }
156  memcpy(p, x4->sei, x4->sei_size);
157  p += x4->sei_size;
158  x4->sei_size = 0;
159  av_freep(&x4->sei);
160  }
161 
162  for (i = 0; i < nnal; i++){
163  memcpy(p, nals[i].p_payload, nals[i].i_payload);
164  p += nals[i].i_payload;
165  }
166 
167  return 1;
168 }
169 
170 static int avfmt2_num_planes(int avfmt)
171 {
172  switch (avfmt) {
173  case AV_PIX_FMT_YUV420P:
174  case AV_PIX_FMT_YUVJ420P:
175  case AV_PIX_FMT_YUV420P9:
177  case AV_PIX_FMT_YUV444P:
178  return 3;
179 
180  case AV_PIX_FMT_BGR0:
181  case AV_PIX_FMT_BGR24:
182  case AV_PIX_FMT_RGB24:
183  case AV_PIX_FMT_GRAY8:
184  case AV_PIX_FMT_GRAY10:
185  return 1;
186 
187  default:
188  return 3;
189  }
190 }
191 
193 {
194  X264Context *x4 = ctx->priv_data;
195  AVFrameSideData *side_data;
196 
197 
198  if (x4->avcintra_class < 0) {
199  if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
200 
201  x4->params.b_tff = frame->top_field_first;
202  x264_encoder_reconfig(x4->enc, &x4->params);
203  }
204  if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
205  x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
206  x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
207  x264_encoder_reconfig(x4->enc, &x4->params);
208  }
209 
210  if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
211  x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) {
212  x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;
213  x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000;
214  x264_encoder_reconfig(x4->enc, &x4->params);
215  }
216 
217  if (x4->params.rc.i_rc_method == X264_RC_ABR &&
218  x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
219  x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
220  x264_encoder_reconfig(x4->enc, &x4->params);
221  }
222 
223  if (x4->crf >= 0 &&
224  x4->params.rc.i_rc_method == X264_RC_CRF &&
225  x4->params.rc.f_rf_constant != x4->crf) {
226  x4->params.rc.f_rf_constant = x4->crf;
227  x264_encoder_reconfig(x4->enc, &x4->params);
228  }
229 
230  if (x4->params.rc.i_rc_method == X264_RC_CQP &&
231  x4->cqp >= 0 &&
232  x4->params.rc.i_qp_constant != x4->cqp) {
233  x4->params.rc.i_qp_constant = x4->cqp;
234  x264_encoder_reconfig(x4->enc, &x4->params);
235  }
236 
237  if (x4->crf_max >= 0 &&
238  x4->params.rc.f_rf_constant_max != x4->crf_max) {
239  x4->params.rc.f_rf_constant_max = x4->crf_max;
240  x264_encoder_reconfig(x4->enc, &x4->params);
241  }
242  }
243 
245  if (side_data) {
246  AVStereo3D *stereo = (AVStereo3D *)side_data->data;
247  int fpa_type;
248 
249  switch (stereo->type) {
251  fpa_type = 0;
252  break;
253  case AV_STEREO3D_COLUMNS:
254  fpa_type = 1;
255  break;
256  case AV_STEREO3D_LINES:
257  fpa_type = 2;
258  break;
260  fpa_type = 3;
261  break;
263  fpa_type = 4;
264  break;
266  fpa_type = 5;
267  break;
268 #if X264_BUILD >= 145
269  case AV_STEREO3D_2D:
270  fpa_type = 6;
271  break;
272 #endif
273  default:
274  fpa_type = -1;
275  break;
276  }
277 
278  /* Inverted mode is not supported by x264 */
279  if (stereo->flags & AV_STEREO3D_FLAG_INVERT) {
280  av_log(ctx, AV_LOG_WARNING,
281  "Ignoring unsupported inverted stereo value %d\n", fpa_type);
282  fpa_type = -1;
283  }
284 
285  if (fpa_type != x4->params.i_frame_packing) {
286  x4->params.i_frame_packing = fpa_type;
287  x264_encoder_reconfig(x4->enc, &x4->params);
288  }
289  }
290 }
291 
293  int *got_packet)
294 {
295  X264Context *x4 = ctx->priv_data;
296  x264_nal_t *nal;
297  int nnal, i, ret;
298  x264_picture_t pic_out = {0};
299  int pict_type;
300  int bit_depth;
301  int64_t wallclock = 0;
302  X264Opaque *out_opaque;
303  AVFrameSideData *sd;
304 
305  x264_picture_init( &x4->pic );
306  x4->pic.img.i_csp = x4->params.i_csp;
307 #if X264_BUILD >= 153
308  bit_depth = x4->params.i_bitdepth;
309 #else
310  bit_depth = x264_bit_depth;
311 #endif
312  if (bit_depth > 8)
313  x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
314  x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
315 
316  if (frame) {
317  for (i = 0; i < x4->pic.img.i_plane; i++) {
318  x4->pic.img.plane[i] = frame->data[i];
319  x4->pic.img.i_stride[i] = frame->linesize[i];
320  }
321 
322  x4->pic.i_pts = frame->pts;
323 
326  x4->pic.opaque = &x4->reordered_opaque[x4->next_reordered_opaque];
327  x4->next_reordered_opaque++;
329 
330  switch (frame->pict_type) {
331  case AV_PICTURE_TYPE_I:
332  x4->pic.i_type = x4->forced_idr > 0 ? X264_TYPE_IDR
333  : X264_TYPE_KEYFRAME;
334  break;
335  case AV_PICTURE_TYPE_P:
336  x4->pic.i_type = X264_TYPE_P;
337  break;
338  case AV_PICTURE_TYPE_B:
339  x4->pic.i_type = X264_TYPE_B;
340  break;
341  default:
342  x4->pic.i_type = X264_TYPE_AUTO;
343  break;
344  }
345  reconfig_encoder(ctx, frame);
346 
347  if (x4->a53_cc) {
348  void *sei_data;
349  size_t sei_size;
350 
351  ret = ff_alloc_a53_sei(frame, 0, &sei_data, &sei_size);
352  if (ret < 0) {
353  av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
354  } else if (sei_data) {
355  x4->pic.extra_sei.payloads = av_mallocz(sizeof(x4->pic.extra_sei.payloads[0]));
356  if (x4->pic.extra_sei.payloads == NULL) {
357  av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
358  av_free(sei_data);
359  } else {
360  x4->pic.extra_sei.sei_free = av_free;
361 
362  x4->pic.extra_sei.payloads[0].payload_size = sei_size;
363  x4->pic.extra_sei.payloads[0].payload = sei_data;
364  x4->pic.extra_sei.num_payloads = 1;
365  x4->pic.extra_sei.payloads[0].payload_type = 4;
366  }
367  }
368  }
369 
371  if (sd) {
372  if (x4->params.rc.i_aq_mode == X264_AQ_NONE) {
373  if (!x4->roi_warned) {
374  x4->roi_warned = 1;
375  av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
376  }
377  } else {
378  if (frame->interlaced_frame == 0) {
379  int mbx = (frame->width + MB_SIZE - 1) / MB_SIZE;
380  int mby = (frame->height + MB_SIZE - 1) / MB_SIZE;
381  int qp_range = 51 + 6 * (bit_depth - 8);
382  int nb_rois;
383  const AVRegionOfInterest *roi;
384  uint32_t roi_size;
385  float *qoffsets;
386 
387  roi = (const AVRegionOfInterest*)sd->data;
388  roi_size = roi->self_size;
389  if (!roi_size || sd->size % roi_size != 0) {
390  av_log(ctx, AV_LOG_ERROR, "Invalid AVRegionOfInterest.self_size.\n");
391  return AVERROR(EINVAL);
392  }
393  nb_rois = sd->size / roi_size;
394 
395  qoffsets = av_mallocz_array(mbx * mby, sizeof(*qoffsets));
396  if (!qoffsets)
397  return AVERROR(ENOMEM);
398 
399  // This list must be iterated in reverse because the first
400  // region in the list applies when regions overlap.
401  for (int i = nb_rois - 1; i >= 0; i--) {
402  int startx, endx, starty, endy;
403  float qoffset;
404 
405  roi = (const AVRegionOfInterest*)(sd->data + roi_size * i);
406 
407  starty = FFMIN(mby, roi->top / MB_SIZE);
408  endy = FFMIN(mby, (roi->bottom + MB_SIZE - 1)/ MB_SIZE);
409  startx = FFMIN(mbx, roi->left / MB_SIZE);
410  endx = FFMIN(mbx, (roi->right + MB_SIZE - 1)/ MB_SIZE);
411 
412  if (roi->qoffset.den == 0) {
413  av_free(qoffsets);
414  av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.qoffset.den must not be zero.\n");
415  return AVERROR(EINVAL);
416  }
417  qoffset = roi->qoffset.num * 1.0f / roi->qoffset.den;
418  qoffset = av_clipf(qoffset * qp_range, -qp_range, +qp_range);
419 
420  for (int y = starty; y < endy; y++) {
421  for (int x = startx; x < endx; x++) {
422  qoffsets[x + y*mbx] = qoffset;
423  }
424  }
425  }
426 
427  x4->pic.prop.quant_offsets = qoffsets;
428  x4->pic.prop.quant_offsets_free = av_free;
429  } else {
430  if (!x4->roi_warned) {
431  x4->roi_warned = 1;
432  av_log(ctx, AV_LOG_WARNING, "interlaced_frame not supported for ROI encoding yet, skipping ROI.\n");
433  }
434  }
435  }
436  }
437  }
438 
439  do {
440  if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
441  return AVERROR_EXTERNAL;
442 
443  ret = encode_nals(ctx, pkt, nal, nnal);
444  if (ret < 0)
445  return ret;
446  } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
447 
448  pkt->pts = pic_out.i_pts;
449  pkt->dts = pic_out.i_dts;
450 
451  out_opaque = pic_out.opaque;
452  if (out_opaque >= x4->reordered_opaque &&
453  out_opaque < &x4->reordered_opaque[x4->nb_reordered_opaque]) {
454  ctx->reordered_opaque = out_opaque->reordered_opaque;
455  wallclock = out_opaque->wallclock;
456  } else {
457  // Unexpected opaque pointer on picture output
458  ctx->reordered_opaque = 0;
459  }
460 
461  switch (pic_out.i_type) {
462  case X264_TYPE_IDR:
463  case X264_TYPE_I:
464  pict_type = AV_PICTURE_TYPE_I;
465  break;
466  case X264_TYPE_P:
467  pict_type = AV_PICTURE_TYPE_P;
468  break;
469  case X264_TYPE_B:
470  case X264_TYPE_BREF:
471  pict_type = AV_PICTURE_TYPE_B;
472  break;
473  default:
474  pict_type = AV_PICTURE_TYPE_NONE;
475  }
476 #if FF_API_CODED_FRAME
478  ctx->coded_frame->pict_type = pict_type;
480 #endif
481 
482  pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
483  if (ret) {
484  ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
485  if (wallclock)
486  ff_side_data_set_prft(pkt, wallclock);
487 
488 #if FF_API_CODED_FRAME
490  ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
492 #endif
493  }
494 
495  *got_packet = ret;
496  return 0;
497 }
498 
500 {
501  X264Context *x4 = avctx->priv_data;
502 
503  av_freep(&avctx->extradata);
504  av_freep(&x4->sei);
506 
507  if (x4->enc) {
508  x264_encoder_close(x4->enc);
509  x4->enc = NULL;
510  }
511 
512  return 0;
513 }
514 
515 #define OPT_STR(opt, param) \
516  do { \
517  int ret; \
518  if ((ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
519  if(ret == X264_PARAM_BAD_NAME) \
520  av_log(avctx, AV_LOG_ERROR, \
521  "bad option '%s': '%s'\n", opt, param); \
522  else \
523  av_log(avctx, AV_LOG_ERROR, \
524  "bad value for '%s': '%s'\n", opt, param); \
525  return -1; \
526  } \
527  } while (0)
528 
530 {
531  switch (pix_fmt) {
532  case AV_PIX_FMT_YUV420P:
533  case AV_PIX_FMT_YUVJ420P:
534  case AV_PIX_FMT_YUV420P9:
535  case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
536  case AV_PIX_FMT_YUV422P:
537  case AV_PIX_FMT_YUVJ422P:
538  case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
539  case AV_PIX_FMT_YUV444P:
540  case AV_PIX_FMT_YUVJ444P:
541  case AV_PIX_FMT_YUV444P9:
542  case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
543 #if CONFIG_LIBX264RGB_ENCODER
544  case AV_PIX_FMT_BGR0:
545  return X264_CSP_BGRA;
546  case AV_PIX_FMT_BGR24:
547  return X264_CSP_BGR;
548 
549  case AV_PIX_FMT_RGB24:
550  return X264_CSP_RGB;
551 #endif
552  case AV_PIX_FMT_NV12: return X264_CSP_NV12;
553  case AV_PIX_FMT_NV16:
554  case AV_PIX_FMT_NV20: return X264_CSP_NV16;
555 #ifdef X264_CSP_NV21
556  case AV_PIX_FMT_NV21: return X264_CSP_NV21;
557 #endif
558 #ifdef X264_CSP_I400
559  case AV_PIX_FMT_GRAY8:
560  case AV_PIX_FMT_GRAY10: return X264_CSP_I400;
561 #endif
562  };
563  return 0;
564 }
565 
566 #define PARSE_X264_OPT(name, var)\
567  if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
568  av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
569  return AVERROR(EINVAL);\
570  }
571 
572 static av_cold int X264_init(AVCodecContext *avctx)
573 {
574  X264Context *x4 = avctx->priv_data;
575  AVCPBProperties *cpb_props;
576  int sw,sh;
577 
578  if (avctx->global_quality > 0)
579  av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
580 
581 #if CONFIG_LIBX262_ENCODER
582  if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
583  x4->params.b_mpeg2 = 1;
584  x264_param_default_mpeg2(&x4->params);
585  } else
586 #endif
587  x264_param_default(&x4->params);
588 
589  x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
590 
591  if (x4->preset || x4->tune)
592  if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
593  int i;
594  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
595  av_log(avctx, AV_LOG_INFO, "Possible presets:");
596  for (i = 0; x264_preset_names[i]; i++)
597  av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
598  av_log(avctx, AV_LOG_INFO, "\n");
599  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
600  for (i = 0; x264_tune_names[i]; i++)
601  av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
602  av_log(avctx, AV_LOG_INFO, "\n");
603  return AVERROR(EINVAL);
604  }
605 
606  if (avctx->level > 0)
607  x4->params.i_level_idc = avctx->level;
608 
609  x4->params.pf_log = X264_log;
610  x4->params.p_log_private = avctx;
611  x4->params.i_log_level = X264_LOG_DEBUG;
612  x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
613 #if X264_BUILD >= 153
614  x4->params.i_bitdepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth;
615 #endif
616 
617  PARSE_X264_OPT("weightp", wpredp);
618 
619  if (avctx->bit_rate) {
620  if (avctx->bit_rate / 1000 > INT_MAX || avctx->rc_max_rate / 1000 > INT_MAX) {
621  av_log(avctx, AV_LOG_ERROR, "bit_rate and rc_max_rate > %d000 not supported by libx264\n", INT_MAX);
622  return AVERROR(EINVAL);
623  }
624  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
625  x4->params.rc.i_rc_method = X264_RC_ABR;
626  }
627  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
628  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
629  x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
630  if (avctx->flags & AV_CODEC_FLAG_PASS2) {
631  x4->params.rc.b_stat_read = 1;
632  } else {
633  if (x4->crf >= 0) {
634  x4->params.rc.i_rc_method = X264_RC_CRF;
635  x4->params.rc.f_rf_constant = x4->crf;
636  } else if (x4->cqp >= 0) {
637  x4->params.rc.i_rc_method = X264_RC_CQP;
638  x4->params.rc.i_qp_constant = x4->cqp;
639  }
640 
641  if (x4->crf_max >= 0)
642  x4->params.rc.f_rf_constant_max = x4->crf_max;
643  }
644 
645  if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
646  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
647  x4->params.rc.f_vbv_buffer_init =
648  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
649  }
650 
651  PARSE_X264_OPT("level", level);
652 
653  if (avctx->i_quant_factor > 0)
654  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
655  if (avctx->b_quant_factor > 0)
656  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
657 
658 #if FF_API_PRIVATE_OPT
660  if (avctx->chromaoffset >= 0)
661  x4->chroma_offset = avctx->chromaoffset;
663 #endif
664  if (x4->chroma_offset >= 0)
665  x4->params.analyse.i_chroma_qp_offset = x4->chroma_offset;
666 
667  if (avctx->gop_size >= 0)
668  x4->params.i_keyint_max = avctx->gop_size;
669  if (avctx->max_b_frames >= 0)
670  x4->params.i_bframe = avctx->max_b_frames;
671 
672 #if FF_API_PRIVATE_OPT
674  if (avctx->scenechange_threshold >= 0)
677 #endif
678  if (x4->scenechange_threshold >= 0)
679  x4->params.i_scenecut_threshold = x4->scenechange_threshold;
680 
681  if (avctx->qmin >= 0)
682  x4->params.rc.i_qp_min = avctx->qmin;
683  if (avctx->qmax >= 0)
684  x4->params.rc.i_qp_max = avctx->qmax;
685  if (avctx->max_qdiff >= 0)
686  x4->params.rc.i_qp_step = avctx->max_qdiff;
687  if (avctx->qblur >= 0)
688  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
689  if (avctx->qcompress >= 0)
690  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
691  if (avctx->refs >= 0)
692  x4->params.i_frame_reference = avctx->refs;
693  else if (x4->level) {
694  int i;
695  int mbn = AV_CEIL_RSHIFT(avctx->width, 4) * AV_CEIL_RSHIFT(avctx->height, 4);
696  int level_id = -1;
697  char *tail;
698  int scale = X264_BUILD < 129 ? 384 : 1;
699 
700  if (!strcmp(x4->level, "1b")) {
701  level_id = 9;
702  } else if (strlen(x4->level) <= 3){
703  level_id = av_strtod(x4->level, &tail) * 10 + 0.5;
704  if (*tail)
705  level_id = -1;
706  }
707  if (level_id <= 0)
708  av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");
709 
710  for (i = 0; i<x264_levels[i].level_idc; i++)
711  if (x264_levels[i].level_idc == level_id)
712  x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
713  }
714 
715  if (avctx->trellis >= 0)
716  x4->params.analyse.i_trellis = avctx->trellis;
717  if (avctx->me_range >= 0)
718  x4->params.analyse.i_me_range = avctx->me_range;
719 #if FF_API_PRIVATE_OPT
721  if (avctx->noise_reduction >= 0)
722  x4->noise_reduction = avctx->noise_reduction;
724 #endif
725  if (x4->noise_reduction >= 0)
726  x4->params.analyse.i_noise_reduction = x4->noise_reduction;
727  if (avctx->me_subpel_quality >= 0)
728  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
729 #if FF_API_PRIVATE_OPT
731  if (avctx->b_frame_strategy >= 0)
732  x4->b_frame_strategy = avctx->b_frame_strategy;
734 #endif
735  if (avctx->keyint_min >= 0)
736  x4->params.i_keyint_min = avctx->keyint_min;
737 #if FF_API_CODER_TYPE
739  if (avctx->coder_type >= 0)
740  x4->coder = avctx->coder_type == FF_CODER_TYPE_AC;
742 #endif
743  if (avctx->me_cmp >= 0)
744  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
745 
746  if (x4->aq_mode >= 0)
747  x4->params.rc.i_aq_mode = x4->aq_mode;
748  if (x4->aq_strength >= 0)
749  x4->params.rc.f_aq_strength = x4->aq_strength;
750  PARSE_X264_OPT("psy-rd", psy_rd);
751  PARSE_X264_OPT("deblock", deblock);
752  PARSE_X264_OPT("partitions", partitions);
753  PARSE_X264_OPT("stats", stats);
754  if (x4->psy >= 0)
755  x4->params.analyse.b_psy = x4->psy;
756  if (x4->rc_lookahead >= 0)
757  x4->params.rc.i_lookahead = x4->rc_lookahead;
758  if (x4->weightp >= 0)
759  x4->params.analyse.i_weighted_pred = x4->weightp;
760  if (x4->weightb >= 0)
761  x4->params.analyse.b_weighted_bipred = x4->weightb;
762  if (x4->cplxblur >= 0)
763  x4->params.rc.f_complexity_blur = x4->cplxblur;
764 
765  if (x4->ssim >= 0)
766  x4->params.analyse.b_ssim = x4->ssim;
767  if (x4->intra_refresh >= 0)
768  x4->params.b_intra_refresh = x4->intra_refresh;
769  if (x4->bluray_compat >= 0) {
770  x4->params.b_bluray_compat = x4->bluray_compat;
771  x4->params.b_vfr_input = 0;
772  }
773  if (x4->avcintra_class >= 0)
774 #if X264_BUILD >= 142
775  x4->params.i_avcintra_class = x4->avcintra_class;
776 #else
777  av_log(avctx, AV_LOG_ERROR,
778  "x264 too old for AVC Intra, at least version 142 needed\n");
779 #endif
780  if (x4->b_bias != INT_MIN)
781  x4->params.i_bframe_bias = x4->b_bias;
782  if (x4->b_pyramid >= 0)
783  x4->params.i_bframe_pyramid = x4->b_pyramid;
784  if (x4->mixed_refs >= 0)
785  x4->params.analyse.b_mixed_references = x4->mixed_refs;
786  if (x4->dct8x8 >= 0)
787  x4->params.analyse.b_transform_8x8 = x4->dct8x8;
788  if (x4->fast_pskip >= 0)
789  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
790  if (x4->aud >= 0)
791  x4->params.b_aud = x4->aud;
792  if (x4->mbtree >= 0)
793  x4->params.rc.b_mb_tree = x4->mbtree;
794  if (x4->direct_pred >= 0)
795  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
796 
797  if (x4->slice_max_size >= 0)
798  x4->params.i_slice_max_size = x4->slice_max_size;
799 
800  if (x4->fastfirstpass)
801  x264_param_apply_fastfirstpass(&x4->params);
802 
803  /* Allow specifying the x264 profile through AVCodecContext. */
804  if (!x4->profile)
805  switch (avctx->profile) {
807  x4->profile = av_strdup("baseline");
808  break;
810  x4->profile = av_strdup("high");
811  break;
813  x4->profile = av_strdup("high10");
814  break;
816  x4->profile = av_strdup("high422");
817  break;
819  x4->profile = av_strdup("high444");
820  break;
822  x4->profile = av_strdup("main");
823  break;
824  default:
825  break;
826  }
827 
828  if (x4->nal_hrd >= 0)
829  x4->params.i_nal_hrd = x4->nal_hrd;
830 
831  if (x4->motion_est >= 0)
832  x4->params.analyse.i_me_method = x4->motion_est;
833 
834  if (x4->coder >= 0)
835  x4->params.b_cabac = x4->coder;
836 
837  if (x4->b_frame_strategy >= 0)
838  x4->params.i_bframe_adaptive = x4->b_frame_strategy;
839 
840  if (x4->profile)
841  if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
842  int i;
843  av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
844  av_log(avctx, AV_LOG_INFO, "Possible profiles:");
845  for (i = 0; x264_profile_names[i]; i++)
846  av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
847  av_log(avctx, AV_LOG_INFO, "\n");
848  return AVERROR(EINVAL);
849  }
850 
851  x4->params.i_width = avctx->width;
852  x4->params.i_height = avctx->height;
853  av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
854  x4->params.vui.i_sar_width = sw;
855  x4->params.vui.i_sar_height = sh;
856  x4->params.i_timebase_den = avctx->time_base.den;
857  x4->params.i_timebase_num = avctx->time_base.num;
858  if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
859  x4->params.i_fps_num = avctx->framerate.num;
860  x4->params.i_fps_den = avctx->framerate.den;
861  } else {
862  x4->params.i_fps_num = avctx->time_base.den;
863  x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
864  }
865 
866  x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
867 
868  x4->params.i_threads = avctx->thread_count;
869  if (avctx->thread_type)
870  x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
871 
872  x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
873 
874  x4->params.b_open_gop = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
875 
876  x4->params.i_slice_count = avctx->slices;
877 
878  x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
879  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
880  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
881  avctx->color_range == AVCOL_RANGE_JPEG;
882 
883  if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
884  x4->params.vui.i_colmatrix = avctx->colorspace;
886  x4->params.vui.i_colorprim = avctx->color_primaries;
887  if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
888  x4->params.vui.i_transfer = avctx->color_trc;
889 
890  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
891  x4->params.b_repeat_headers = 0;
892 
893  if(x4->x264opts){
894  const char *p= x4->x264opts;
895  while(p){
896  char param[4096]={0}, val[4096]={0};
897  if(sscanf(p, "%4095[^:=]=%4095[^:]", param, val) == 1){
898  OPT_STR(param, "1");
899  }else
900  OPT_STR(param, val);
901  p= strchr(p, ':');
902  p+=!!p;
903  }
904  }
905 
906 
907  {
908  AVDictionaryEntry *en = NULL;
909  while (en = av_dict_get(x4->x264_params, "", en, AV_DICT_IGNORE_SUFFIX)) {
910  if (x264_param_parse(&x4->params, en->key, en->value) < 0)
911  av_log(avctx, AV_LOG_WARNING,
912  "Error parsing option '%s = %s'.\n",
913  en->key, en->value);
914  }
915  }
916 
917  // update AVCodecContext with x264 parameters
918  avctx->has_b_frames = x4->params.i_bframe ?
919  x4->params.i_bframe_pyramid ? 2 : 1 : 0;
920  if (avctx->max_b_frames < 0)
921  avctx->max_b_frames = 0;
922 
923  avctx->bit_rate = x4->params.rc.i_bitrate*1000LL;
924 
925  x4->enc = x264_encoder_open(&x4->params);
926  if (!x4->enc)
927  return AVERROR_EXTERNAL;
928 
929  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
930  x264_nal_t *nal;
931  uint8_t *p;
932  int nnal, s, i;
933 
934  s = x264_encoder_headers(x4->enc, &nal, &nnal);
936  if (!p)
937  return AVERROR(ENOMEM);
938 
939  for (i = 0; i < nnal; i++) {
940  /* Don't put the SEI in extradata. */
941  if (nal[i].i_type == NAL_SEI) {
942  av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
943  x4->sei_size = nal[i].i_payload;
944  x4->sei = av_malloc(x4->sei_size);
945  if (!x4->sei)
946  return AVERROR(ENOMEM);
947  memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
948  continue;
949  }
950  memcpy(p, nal[i].p_payload, nal[i].i_payload);
951  p += nal[i].i_payload;
952  }
953  avctx->extradata_size = p - avctx->extradata;
954  }
955 
956  cpb_props = ff_add_cpb_side_data(avctx);
957  if (!cpb_props)
958  return AVERROR(ENOMEM);
959  cpb_props->buffer_size = x4->params.rc.i_vbv_buffer_size * 1000;
960  cpb_props->max_bitrate = x4->params.rc.i_vbv_max_bitrate * 1000LL;
961  cpb_props->avg_bitrate = x4->params.rc.i_bitrate * 1000LL;
962 
963  // Overestimate the reordered opaque buffer size, in case a runtime
964  // reconfigure would increase the delay (which it shouldn't).
965  x4->nb_reordered_opaque = x264_encoder_maximum_delayed_frames(x4->enc) + 17;
967  sizeof(*x4->reordered_opaque));
968  if (!x4->reordered_opaque)
969  return AVERROR(ENOMEM);
970 
971  return 0;
972 }
973 
974 static const enum AVPixelFormat pix_fmts_8bit[] = {
983 #ifdef X264_CSP_NV21
985 #endif
987 };
988 static const enum AVPixelFormat pix_fmts_9bit[] = {
992 };
993 static const enum AVPixelFormat pix_fmts_10bit[] = {
999 };
1000 static const enum AVPixelFormat pix_fmts_all[] = {
1009 #ifdef X264_CSP_NV21
1011 #endif
1016 #ifdef X264_CSP_I400
1019 #endif
1021 };
1022 #if CONFIG_LIBX264RGB_ENCODER
1023 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
1028 };
1029 #endif
1030 
1031 static av_cold void X264_init_static(AVCodec *codec)
1032 {
1033 #if X264_BUILD < 153
1034  if (x264_bit_depth == 8)
1035  codec->pix_fmts = pix_fmts_8bit;
1036  else if (x264_bit_depth == 9)
1037  codec->pix_fmts = pix_fmts_9bit;
1038  else if (x264_bit_depth == 10)
1039  codec->pix_fmts = pix_fmts_10bit;
1040 #else
1041  codec->pix_fmts = pix_fmts_all;
1042 #endif
1043 }
1044 
1045 #define OFFSET(x) offsetof(X264Context, x)
1046 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
1047 static const AVOption options[] = {
1048  { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
1049  { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
1050  { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
1051  { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},
1052  {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
1053  {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
1054  {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
1055  {"a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, VE},
1056  {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
1057  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
1058  { "crf_max", "In CRF mode, prevents VBV from lowering quality beyond this point.",OFFSET(crf_max), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
1059  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
1060  { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
1061  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
1062  { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
1063  { "autovariance", "Auto-variance AQ", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
1064 #if X264_BUILD >= 144
1065  { "autovariance-biased", "Auto-variance AQ with bias to dark scenes", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE_BIASED}, INT_MIN, INT_MAX, VE, "aq_mode" },
1066 #endif
1067  { "aq-strength", "AQ strength. Reduces blocking and blurring in flat and textured areas.", OFFSET(aq_strength), AV_OPT_TYPE_FLOAT, {.dbl = -1}, -1, FLT_MAX, VE},
1068  { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1069  { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
1070  { "rc-lookahead", "Number of frames to look ahead for frametype and ratecontrol", OFFSET(rc_lookahead), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
1071  { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1072  { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
1073  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
1074  { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
1075  { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
1076  { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1077  { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1078  { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
1079  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
1080  { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
1081  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
1082  { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
1083  { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
1084  { "mixed-refs", "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_BOOL, { .i64 = -1}, -1, 1, VE },
1085  { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
1086  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
1087  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
1088  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
1089  { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
1090  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
1091  { "partitions", "A comma-separated list of partitions to consider. "
1092  "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
1093  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
1094  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
1095  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
1096  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
1097  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
1098  { "slice-max-size","Limit the size of each slice in bytes", OFFSET(slice_max_size),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
1099  { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
1100  { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
1101  "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
1102  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
1103  { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
1104  { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
1105  { "avcintra-class","AVC-Intra class 50/100/200", OFFSET(avcintra_class),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 200 , VE},
1106  { "me_method", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
1107  { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
1108  { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
1109  { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
1110  { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
1111  { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
1112  { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
1113  { "forced-idr", "If forcing keyframes, force them as IDR frames.", OFFSET(forced_idr), AV_OPT_TYPE_BOOL, { .i64 = 0 }, -1, 1, VE },
1114  { "coder", "Coder type", OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "coder" },
1115  { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, "coder" },
1116  { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
1117  { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
1118  { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
1119  { "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
1120  { "b_strategy", "Strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },
1121  { "chromaoffset", "QP difference between chroma and luma", OFFSET(chroma_offset), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
1122  { "sc_threshold", "Scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
1123  { "noise_reduction", "Noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
1124 
1125  { "x264-params", "Override the x264 configuration using a :-separated list of key=value parameters", OFFSET(x264_params), AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },
1126  { NULL },
1127 };
1128 
1129 static const AVCodecDefault x264_defaults[] = {
1130  { "b", "0" },
1131  { "bf", "-1" },
1132  { "flags2", "0" },
1133  { "g", "-1" },
1134  { "i_qfactor", "-1" },
1135  { "b_qfactor", "-1" },
1136  { "qmin", "-1" },
1137  { "qmax", "-1" },
1138  { "qdiff", "-1" },
1139  { "qblur", "-1" },
1140  { "qcomp", "-1" },
1141 // { "rc_lookahead", "-1" },
1142  { "refs", "-1" },
1143 #if FF_API_PRIVATE_OPT
1144  { "sc_threshold", "-1" },
1145 #endif
1146  { "trellis", "-1" },
1147 #if FF_API_PRIVATE_OPT
1148  { "nr", "-1" },
1149 #endif
1150  { "me_range", "-1" },
1151  { "subq", "-1" },
1152 #if FF_API_PRIVATE_OPT
1153  { "b_strategy", "-1" },
1154 #endif
1155  { "keyint_min", "-1" },
1156 #if FF_API_CODER_TYPE
1157  { "coder", "-1" },
1158 #endif
1159  { "cmp", "-1" },
1160  { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
1161  { "thread_type", "0" },
1162  { "flags", "+cgop" },
1163  { "rc_init_occupancy","-1" },
1164  { NULL },
1165 };
1166 
1167 #if CONFIG_LIBX264_ENCODER
1168 static const AVClass x264_class = {
1169  .class_name = "libx264",
1170  .item_name = av_default_item_name,
1171  .option = options,
1172  .version = LIBAVUTIL_VERSION_INT,
1173 };
1174 
1176  .name = "libx264",
1177  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
1178  .type = AVMEDIA_TYPE_VIDEO,
1179  .id = AV_CODEC_ID_H264,
1180  .priv_data_size = sizeof(X264Context),
1181  .init = X264_init,
1182  .encode2 = X264_frame,
1183  .close = X264_close,
1184  .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |
1186  .priv_class = &x264_class,
1187  .defaults = x264_defaults,
1188  .init_static_data = X264_init_static,
1189 #if X264_BUILD >= 158
1191 #else
1192  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1193 #endif
1194  .wrapper_name = "libx264",
1195 };
1196 #endif
1197 
1198 #if CONFIG_LIBX264RGB_ENCODER
1199 static const AVClass rgbclass = {
1200  .class_name = "libx264rgb",
1201  .item_name = av_default_item_name,
1202  .option = options,
1203  .version = LIBAVUTIL_VERSION_INT,
1204 };
1205 
1207  .name = "libx264rgb",
1208  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
1209  .type = AVMEDIA_TYPE_VIDEO,
1210  .id = AV_CODEC_ID_H264,
1211  .priv_data_size = sizeof(X264Context),
1212  .init = X264_init,
1213  .encode2 = X264_frame,
1214  .close = X264_close,
1215  .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |
1217  .priv_class = &rgbclass,
1218  .defaults = x264_defaults,
1219  .pix_fmts = pix_fmts_8bit_rgb,
1220 #if X264_BUILD >= 158
1222 #else
1223  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1224 #endif
1225  .wrapper_name = "libx264",
1226 };
1227 #endif
1228 
1229 #if CONFIG_LIBX262_ENCODER
1230 static const AVClass X262_class = {
1231  .class_name = "libx262",
1232  .item_name = av_default_item_name,
1233  .option = options,
1234  .version = LIBAVUTIL_VERSION_INT,
1235 };
1236 
1238  .name = "libx262",
1239  .long_name = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),
1240  .type = AVMEDIA_TYPE_VIDEO,
1241  .id = AV_CODEC_ID_MPEG2VIDEO,
1242  .priv_data_size = sizeof(X264Context),
1243  .init = X264_init,
1244  .encode2 = X264_frame,
1245  .close = X264_close,
1246  .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS |
1248  .priv_class = &X262_class,
1249  .defaults = x264_defaults,
1251  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
1252  .wrapper_name = "libx264",
1253 };
1254 #endif
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
#define FF_PROFILE_H264_MAIN
Definition: avcodec.h:2955
#define AV_STEREO3D_FLAG_INVERT
Inverted views, Right/Bottom represents the left view.
Definition: stereo3d.h:167
static int convert_pix_fmt(enum AVPixelFormat pix_fmt)
Definition: libx264.c:529
#define NULL
Definition: coverity.c:32
AVRational framerate
Definition: avcodec.h:3121
const char const char void * val
Definition: avisynth_c.h:863
static enum AVPixelFormat pix_fmt
int top
Distance in pixels from the top edge of the frame to the top and bottom edges and from the left edge ...
Definition: frame.h:235
static int avfmt2_num_planes(int avfmt)
Definition: libx264.c:170
char * partitions
Definition: libx264.c:89
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
int dct8x8
Definition: libx264.c:83
AVOption.
Definition: opt.h:246
int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
Definition: avpacket.c:720
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:902
#define AV_CODEC_FLAG_LOOP_FILTER
loop filter.
Definition: avcodec.h:885
const char * fmt
Definition: avisynth_c.h:861
float qblur
amount of qscale smoothing over time (0.0-1.0)
Definition: avcodec.h:2416
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1631
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
Memory handling functions.
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
int max_bitrate
Maximum bitrate of the stream, in bits per second.
Definition: avcodec.h:1140
int max_b_frames
maximum number of B-frames between non-B-frames Note: The output will be delayed by max_b_frames+1 re...
Definition: avcodec.h:1841
AVCodec ff_libx262_encoder
int noise_reduction
Definition: libx264.c:102
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2487
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2216
int num
Numerator.
Definition: rational.h:59
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
Definition: avcodec.h:1960
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1791
int next_reordered_opaque
Definition: libx264.c:106
int bluray_compat
Definition: libx264.c:79
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
char * wpredp
Definition: libx264.c:65
static void X264_log(void *p, int level, const char *fmt, va_list args)
Definition: libx264.c:116
Views are next to each other.
Definition: stereo3d.h:67
static AVPacket pkt
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1055
int profile
profile
Definition: avcodec.h:2914
AVCodec.
Definition: avcodec.h:3505
static av_cold int X264_init(AVCodecContext *avctx)
Definition: libx264.c:572
int roi_warned
If the encoder does not support ROI then warn the first time we encounter a frame with ROI side data...
Definition: libx264.c:113
AVRational qoffset
Quantisation offset.
Definition: frame.h:262
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1704
Undefined.
Definition: avutil.h:273
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:368
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:734
x264_param_t params
Definition: libx264.c:55
char * x264opts
Definition: libx264.c:66
#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE
This codec takes the reordered_opaque field from input AVFrames and returns it in the corresponding f...
Definition: avcodec.h:1098
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: avcodec.h:1012
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: encode.c:32
#define FF_PROFILE_H264_BASELINE
Definition: avcodec.h:2953
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
#define av_malloc(s)
AVOptions.
Stereo 3D type: this structure describes how two videos are packed within a single video surface...
Definition: stereo3d.h:176
int me_range
maximum motion estimation search range in subpel units If 0 then no limit.
Definition: avcodec.h:2052
float b_quant_factor
qscale factor between IP and B-frames If > 0 then the last P-frame quantizer will be used (q= lastp_q...
Definition: avcodec.h:1850
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:388
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1682
int me_cmp
motion estimation comparison function
Definition: avcodec.h:1967
int nb_reordered_opaque
Definition: libx264.c:106
int level_idc
Definition: h264_levels.c:25
Structure to hold side data for an AVFrame.
Definition: frame.h:201
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
uint8_t * data
Definition: avcodec.h:1493
int b_pyramid
Definition: libx264.c:81
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
x264_picture_t pic
Definition: libx264.c:57
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:442
float cplxblur
Definition: libx264.c:88
Video is not stereoscopic (and metadata has to be there).
Definition: stereo3d.h:55
int buffer_size
The size of the buffer to which the ratecontrol is applied, in bits.
Definition: avcodec.h:1167
ptrdiff_t size
Definition: opengl_enc.c:100
#define FF_CMP_CHROMA
Definition: avcodec.h:2002
char * stats
Definition: libx264.c:92
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
uint32_t self_size
Must be set to the size of this data structure (that is, sizeof(AVRegionOfInterest)).
Definition: frame.h:225
static enum AVPixelFormat pix_fmts_all[]
Definition: libx264.c:1000
int intra_refresh
Definition: libx264.c:78
#define AV_PIX_FMT_NV20
Definition: pixfmt.h:434
#define av_log(a,...)
int rc_lookahead
Definition: libx264.c:74
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1525
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
static enum AVPixelFormat pix_fmts_10bit[]
Definition: libx264.c:993
int width
Definition: frame.h:353
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:1871
int flags
Additional information about the frame packing.
Definition: stereo3d.h:185
static void dct8x8(int16_t *coef, int bit_depth)
Definition: h264dsp.c:164
int qmax
maximum quantizer
Definition: avcodec.h:2430
char * profile
Definition: libx264.c:62
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
Views are packed per line, as if interlaced.
Definition: stereo3d.h:129
int coder
Definition: libx264.c:97
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int fastfirstpass
Definition: libx264.c:64
#define FF_PROFILE_H264_HIGH_422
Definition: avcodec.h:2961
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:2957
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1661
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:89
int mbtree
Definition: libx264.c:86
const char * name
Name of the codec implementation.
Definition: avcodec.h:3512
float i_quant_factor
qscale factor between P- and I-frames If > 0 then the last P-frame quantizer will be used (q = lastp_...
Definition: avcodec.h:1886
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
static const AVCodecDefault defaults[]
Definition: amfenc_h264.c:361
char * deblock
Definition: libx264.c:87
int b_frame_strategy
Definition: libx264.c:99
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1499
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2444
Views are alternated temporally.
Definition: stereo3d.h:92
common internal API header
char * psy_rd
Definition: libx264.c:72
as above, but U and V bytes are swapped
Definition: pixfmt.h:90
int refs
number of reference frames
Definition: avcodec.h:2169
int64_t reordered_opaque
Definition: libx264.c:49
X264Opaque * reordered_opaque
Definition: libx264.c:107
int motion_est
Definition: libx264.c:95
static enum AVPixelFormat pix_fmts_9bit[]
Definition: libx264.c:988
#define PARSE_X264_OPT(name, var)
Definition: libx264.c:566
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3526
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:378
#define OPT_STR(opt, param)
Definition: libx264.c:515
#define FFMIN(a, b)
Definition: common.h:96
AVDictionary * x264_params
Definition: libx264.c:104
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
int width
picture width / height.
Definition: avcodec.h:1754
int cqp
Definition: libx264.c:69
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
Definition: af_astats.c:226
attribute_deprecated int noise_reduction
Definition: avcodec.h:2099
x264_t * enc
Definition: libx264.c:56
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:893
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:877
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2195
static void stats(AVPacket *const *in, int n_in, unsigned *_max, unsigned *_sum)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
#define s(width, name)
Definition: cbs_vp9.c:257
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition: avcodec.h:2852
int level
level
Definition: avcodec.h:3034
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:418
Structure describing a single Region Of Interest.
Definition: frame.h:220
int scenechange_threshold
Definition: libx264.c:101
int64_t reordered_opaque
opaque 64-bit number (generally a PTS) that will be reordered and output in AVFrame.reordered_opaque
Definition: avcodec.h:2738
int slice_max_size
Definition: libx264.c:91
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1713
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
int nal_hrd
Definition: libx264.c:93
int max_qdiff
maximum quantizer difference between frames
Definition: avcodec.h:2437
int weightp
Definition: libx264.c:75
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:386
attribute_deprecated int coder_type
Definition: avcodec.h:2498
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:220
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2840
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:523
if(ret)
static enum AVPixelFormat pix_fmts_8bit[]
Definition: libx264.c:974
int64_t av_gettime(void)
Get the current time in microseconds.
Definition: time.c:39
static const AVCodecDefault x264_defaults[]
Definition: libx264.c:1129
double av_strtod(const char *numstr, char **tail)
Parse the string in numstr and return its value as a double.
Definition: eval.c:106
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1134
int avcintra_class
Definition: libx264.c:94
enum AVStereo3DType type
How views are packed within the video.
Definition: stereo3d.h:180
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
Views are packed in a checkerboard-like structure per pixel.
Definition: stereo3d.h:104
char * level
Definition: libx264.c:63
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
Libavcodec external API header.
Views are on top of each other.
Definition: stereo3d.h:79
static av_cold int X264_close(AVCodecContext *avctx)
Definition: libx264.c:499
attribute_deprecated int scenechange_threshold
Definition: avcodec.h:2095
enum AVCodecID codec_id
Definition: avcodec.h:1591
int forced_idr
Definition: libx264.c:96
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
attribute_deprecated int b_frame_strategy
Definition: avcodec.h:1855
main external API structure.
Definition: avcodec.h:1581
static const AVOption options[]
Definition: libx264.c:1047
int qmin
minimum quantizer
Definition: avcodec.h:2423
uint8_t * data
Definition: frame.h:203
#define FF_CODER_TYPE_AC
Definition: avcodec.h:2491
int extradata_size
Definition: avcodec.h:1683
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
float crf
Definition: libx264.c:67
static int FUNC() aud(CodedBitstreamContext *ctx, RWContext *rw, H264RawAUD *current)
int aq_mode
Definition: libx264.c:70
int aud
Definition: libx264.c:85
#define AV_STRINGIFY(s)
Definition: macros.h:36
int64_t reordered_opaque
reordered opaque 64 bits (generally an integer or a double precision float PTS but can be anything)...
Definition: frame.h:462
Describe the class of an AVClass context structure.
Definition: log.h:67
int a53_cc
Definition: libx264.c:98
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2209
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2202
Regions Of Interest, the data is an array of AVRegionOfInterest type, the number of array element is ...
Definition: frame.h:181
uint8_t * sei
Definition: libx264.c:58
void av_vlog(void *avcl, int level, const char *fmt, va_list vl)
Send the specified message to the log if the level is less than or equal to the current av_log_level...
Definition: log.c:371
int psy
Definition: libx264.c:73
static int encode_nals(AVCodecContext *ctx, AVPacket *pkt, const x264_nal_t *nals, int nnal)
Definition: libx264.c:132
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:240
#define FF_PROFILE_H264_HIGH_444
Definition: avcodec.h:2964
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:384
attribute_deprecated int chromaoffset
Definition: avcodec.h:2174
float qcompress
amount of qscale change between easy & hard scenes (0.0-1.0)
Definition: avcodec.h:2415
int sei_size
Definition: libx264.c:59
static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)
Definition: libx264.c:192
char * preset
Definition: libx264.c:60
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
mfxU16 profile
Definition: qsvenc.c:44
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:1647
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
uint8_t level
Definition: svq3.c:207
int b_bias
Definition: libx264.c:80
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:910
int fast_pskip
Definition: libx264.c:84
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1776
int chroma_offset
Definition: libx264.c:100
static av_cold void X264_init_static(AVCodec *codec)
Definition: libx264.c:1031
int mixed_refs
Definition: libx264.c:82
preset
Definition: vf_curves.c:46
char * tune
Definition: libx264.c:61
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
#define VE
Definition: libx264.c:1046
int weightb
Definition: libx264.c:76
float aq_strength
Definition: libx264.c:71
common internal api header.
int64_t wallclock
Definition: libx264.c:50
Bi-dir predicted.
Definition: avutil.h:276
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
Stereoscopic video.
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2831
Views are packed per column.
Definition: stereo3d.h:141
char * key
Definition: dict.h:86
int den
Denominator.
Definition: rational.h:60
interleaved chroma YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:201
int trellis
trellis RD quantization
Definition: avcodec.h:2530
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:1976
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:796
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:881
int slices
Number of slices.
Definition: avcodec.h:2232
void * priv_data
Definition: avcodec.h:1608
#define av_free(p)
char * value
Definition: dict.h:87
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:447
int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp)
Definition: avpacket.c:745
int avg_bitrate
Average bitrate of the stream, in bits per second.
Definition: avcodec.h:1158
#define MB_SIZE
Definition: libx264.c:46
AVCodec ff_libx264rgb_encoder
int ssim
Definition: libx264.c:77
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
AVCodec ff_libx264_encoder
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1492
float crf_max
Definition: libx264.c:68
int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, void **data, size_t *sei_size)
Check AVFrame for A53 side data and allocate and fill SEI message with A53 info.
Definition: utils.c:2175
int height
Definition: frame.h:353
#define OFFSET(x)
Definition: libx264.c:1045
int direct_pred
Definition: libx264.c:90
#define av_freep(p)
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:70
static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: libx264.c:292
#define av_malloc_array(a, b)
#define AV_CODEC_FLAG_CLOSED_GOP
Definition: avcodec.h:924
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
#define FF_PROFILE_H264_HIGH_10
Definition: avcodec.h:2958
Stereoscopic 3d metadata.
Definition: frame.h:63
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
This structure stores compressed data.
Definition: avcodec.h:1470
int me_subpel_quality
subpel ME quality
Definition: avcodec.h:2043
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1486
Predicted.
Definition: avutil.h:275
int thread_type
Which multithreading methods to use.
Definition: avcodec.h:2850
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2459
simple arithmetic expression evaluator
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
int keyint_min
minimum GOP size
Definition: avcodec.h:2162