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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/intreadwrite.h"
29 #include "avcodec.h"
30 #include "internal.h"
31 
32 #if defined(_MSC_VER)
33 #define X264_API_IMPORTS 1
34 #endif
35 
36 #include <x264.h>
37 #include <float.h>
38 #include <math.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 
43 typedef struct X264Context {
44  AVClass *class;
45  x264_param_t params;
46  x264_t *enc;
47  x264_picture_t pic;
49  int sei_size;
50  char *preset;
51  char *tune;
52  char *profile;
53  char *level;
55  char *wpredp;
56  char *x264opts;
57  float crf;
58  float crf_max;
59  int cqp;
60  int aq_mode;
61  float aq_strength;
62  char *psy_rd;
63  int psy;
65  int weightp;
66  int weightb;
67  int ssim;
70  int b_bias;
71  int b_pyramid;
73  int dct8x8;
75  int aud;
76  int mbtree;
77  char *deblock;
78  float cplxblur;
79  char *partitions;
82  char *stats;
83  int nal_hrd;
87  int coder;
88  int a53_cc;
93 
94  char *x264_params;
95 } X264Context;
96 
97 static void X264_log(void *p, int level, const char *fmt, va_list args)
98 {
99  static const int level_map[] = {
100  [X264_LOG_ERROR] = AV_LOG_ERROR,
101  [X264_LOG_WARNING] = AV_LOG_WARNING,
102  [X264_LOG_INFO] = AV_LOG_INFO,
103  [X264_LOG_DEBUG] = AV_LOG_DEBUG
104  };
105 
106  if (level < 0 || level > X264_LOG_DEBUG)
107  return;
108 
109  av_vlog(p, level_map[level], fmt, args);
110 }
111 
112 
114  const x264_nal_t *nals, int nnal)
115 {
116  X264Context *x4 = ctx->priv_data;
117  uint8_t *p;
118  int i, size = x4->sei_size, ret;
119 
120  if (!nnal)
121  return 0;
122 
123  for (i = 0; i < nnal; i++)
124  size += nals[i].i_payload;
125 
126  if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
127  return ret;
128 
129  p = pkt->data;
130 
131  /* Write the SEI as part of the first frame. */
132  if (x4->sei_size > 0 && nnal > 0) {
133  if (x4->sei_size > size) {
134  av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
135  return -1;
136  }
137  memcpy(p, x4->sei, x4->sei_size);
138  p += x4->sei_size;
139  x4->sei_size = 0;
140  av_freep(&x4->sei);
141  }
142 
143  for (i = 0; i < nnal; i++){
144  memcpy(p, nals[i].p_payload, nals[i].i_payload);
145  p += nals[i].i_payload;
146  }
147 
148  return 1;
149 }
150 
151 static int avfmt2_num_planes(int avfmt)
152 {
153  switch (avfmt) {
154  case AV_PIX_FMT_YUV420P:
155  case AV_PIX_FMT_YUVJ420P:
156  case AV_PIX_FMT_YUV420P9:
158  case AV_PIX_FMT_YUV444P:
159  return 3;
160 
161  case AV_PIX_FMT_BGR0:
162  case AV_PIX_FMT_BGR24:
163  case AV_PIX_FMT_RGB24:
164  return 1;
165 
166  default:
167  return 3;
168  }
169 }
170 
172 {
173  X264Context *x4 = ctx->priv_data;
174  AVFrameSideData *side_data;
175 
176 
177  if (x4->avcintra_class < 0) {
178  if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
179 
180  x4->params.b_tff = frame->top_field_first;
181  x264_encoder_reconfig(x4->enc, &x4->params);
182  }
183  if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
184  x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
185  x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
186  x264_encoder_reconfig(x4->enc, &x4->params);
187  }
188 
189  if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
190  x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) {
191  x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;
192  x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000;
193  x264_encoder_reconfig(x4->enc, &x4->params);
194  }
195 
196  if (x4->params.rc.i_rc_method == X264_RC_ABR &&
197  x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
198  x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
199  x264_encoder_reconfig(x4->enc, &x4->params);
200  }
201 
202  if (x4->crf >= 0 &&
203  x4->params.rc.i_rc_method == X264_RC_CRF &&
204  x4->params.rc.f_rf_constant != x4->crf) {
205  x4->params.rc.f_rf_constant = x4->crf;
206  x264_encoder_reconfig(x4->enc, &x4->params);
207  }
208 
209  if (x4->params.rc.i_rc_method == X264_RC_CQP &&
210  x4->cqp >= 0 &&
211  x4->params.rc.i_qp_constant != x4->cqp) {
212  x4->params.rc.i_qp_constant = x4->cqp;
213  x264_encoder_reconfig(x4->enc, &x4->params);
214  }
215 
216  if (x4->crf_max >= 0 &&
217  x4->params.rc.f_rf_constant_max != x4->crf_max) {
218  x4->params.rc.f_rf_constant_max = x4->crf_max;
219  x264_encoder_reconfig(x4->enc, &x4->params);
220  }
221  }
222 
224  if (side_data) {
225  AVStereo3D *stereo = (AVStereo3D *)side_data->data;
226  int fpa_type;
227 
228  switch (stereo->type) {
230  fpa_type = 0;
231  break;
232  case AV_STEREO3D_COLUMNS:
233  fpa_type = 1;
234  break;
235  case AV_STEREO3D_LINES:
236  fpa_type = 2;
237  break;
239  fpa_type = 3;
240  break;
242  fpa_type = 4;
243  break;
245  fpa_type = 5;
246  break;
247 #if X264_BUILD >= 145
248  case AV_STEREO3D_2D:
249  fpa_type = 6;
250  break;
251 #endif
252  default:
253  fpa_type = -1;
254  break;
255  }
256 
257  /* Inverted mode is not supported by x264 */
258  if (stereo->flags & AV_STEREO3D_FLAG_INVERT) {
259  av_log(ctx, AV_LOG_WARNING,
260  "Ignoring unsupported inverted stereo value %d\n", fpa_type);
261  fpa_type = -1;
262  }
263 
264  if (fpa_type != x4->params.i_frame_packing) {
265  x4->params.i_frame_packing = fpa_type;
266  x264_encoder_reconfig(x4->enc, &x4->params);
267  }
268  }
269 }
270 
272  int *got_packet)
273 {
274  X264Context *x4 = ctx->priv_data;
275  x264_nal_t *nal;
276  int nnal, i, ret;
277  x264_picture_t pic_out = {0};
278  int pict_type;
279 
280  x264_picture_init( &x4->pic );
281  x4->pic.img.i_csp = x4->params.i_csp;
282  if (x264_bit_depth > 8)
283  x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
284  x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
285 
286  if (frame) {
287  for (i = 0; i < x4->pic.img.i_plane; i++) {
288  x4->pic.img.plane[i] = frame->data[i];
289  x4->pic.img.i_stride[i] = frame->linesize[i];
290  }
291 
292  x4->pic.i_pts = frame->pts;
293 
294  switch (frame->pict_type) {
295  case AV_PICTURE_TYPE_I:
296  x4->pic.i_type = x4->forced_idr >= 0 ? X264_TYPE_IDR
297  : X264_TYPE_KEYFRAME;
298  break;
299  case AV_PICTURE_TYPE_P:
300  x4->pic.i_type = X264_TYPE_P;
301  break;
302  case AV_PICTURE_TYPE_B:
303  x4->pic.i_type = X264_TYPE_B;
304  break;
305  default:
306  x4->pic.i_type = X264_TYPE_AUTO;
307  break;
308  }
309  reconfig_encoder(ctx, frame);
310 
311  if (x4->a53_cc) {
312  void *sei_data;
313  size_t sei_size;
314 
315  ret = ff_alloc_a53_sei(frame, 0, &sei_data, &sei_size);
316  if (ret < 0) {
317  av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
318  } else if (sei_data) {
319  x4->pic.extra_sei.payloads = av_mallocz(sizeof(x4->pic.extra_sei.payloads[0]));
320  if (x4->pic.extra_sei.payloads == NULL) {
321  av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
322  av_free(sei_data);
323  } else {
324  x4->pic.extra_sei.sei_free = av_free;
325 
326  x4->pic.extra_sei.payloads[0].payload_size = sei_size;
327  x4->pic.extra_sei.payloads[0].payload = sei_data;
328  x4->pic.extra_sei.num_payloads = 1;
329  x4->pic.extra_sei.payloads[0].payload_type = 4;
330  }
331  }
332  }
333  }
334 
335  do {
336  if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
337  return AVERROR_EXTERNAL;
338 
339  ret = encode_nals(ctx, pkt, nal, nnal);
340  if (ret < 0)
341  return ret;
342  } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
343 
344  pkt->pts = pic_out.i_pts;
345  pkt->dts = pic_out.i_dts;
346 
347 
348  switch (pic_out.i_type) {
349  case X264_TYPE_IDR:
350  case X264_TYPE_I:
351  pict_type = AV_PICTURE_TYPE_I;
352  break;
353  case X264_TYPE_P:
354  pict_type = AV_PICTURE_TYPE_P;
355  break;
356  case X264_TYPE_B:
357  case X264_TYPE_BREF:
358  pict_type = AV_PICTURE_TYPE_B;
359  break;
360  default:
361  pict_type = AV_PICTURE_TYPE_NONE;
362  }
363 #if FF_API_CODED_FRAME
365  ctx->coded_frame->pict_type = pict_type;
367 #endif
368 
369  pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
370  if (ret) {
371  ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
372 
373 #if FF_API_CODED_FRAME
375  ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
377 #endif
378  }
379 
380  *got_packet = ret;
381  return 0;
382 }
383 
385 {
386  X264Context *x4 = avctx->priv_data;
387 
388  av_freep(&avctx->extradata);
389  av_freep(&x4->sei);
390 
391  if (x4->enc) {
392  x264_encoder_close(x4->enc);
393  x4->enc = NULL;
394  }
395 
396  return 0;
397 }
398 
399 #define OPT_STR(opt, param) \
400  do { \
401  int ret; \
402  if ((ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
403  if(ret == X264_PARAM_BAD_NAME) \
404  av_log(avctx, AV_LOG_ERROR, \
405  "bad option '%s': '%s'\n", opt, param); \
406  else \
407  av_log(avctx, AV_LOG_ERROR, \
408  "bad value for '%s': '%s'\n", opt, param); \
409  return -1; \
410  } \
411  } while (0)
412 
414 {
415  switch (pix_fmt) {
416  case AV_PIX_FMT_YUV420P:
417  case AV_PIX_FMT_YUVJ420P:
418  case AV_PIX_FMT_YUV420P9:
419  case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
420  case AV_PIX_FMT_YUV422P:
421  case AV_PIX_FMT_YUVJ422P:
422  case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
423  case AV_PIX_FMT_YUV444P:
424  case AV_PIX_FMT_YUVJ444P:
425  case AV_PIX_FMT_YUV444P9:
426  case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
427 #if CONFIG_LIBX264RGB_ENCODER
428  case AV_PIX_FMT_BGR0:
429  return X264_CSP_BGRA;
430  case AV_PIX_FMT_BGR24:
431  return X264_CSP_BGR;
432 
433  case AV_PIX_FMT_RGB24:
434  return X264_CSP_RGB;
435 #endif
436  case AV_PIX_FMT_NV12: return X264_CSP_NV12;
437  case AV_PIX_FMT_NV16:
438  case AV_PIX_FMT_NV20: return X264_CSP_NV16;
439 #ifdef X264_CSP_NV21
440  case AV_PIX_FMT_NV21: return X264_CSP_NV21;
441 #endif
442  };
443  return 0;
444 }
445 
446 #define PARSE_X264_OPT(name, var)\
447  if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
448  av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
449  return AVERROR(EINVAL);\
450  }
451 
452 static av_cold int X264_init(AVCodecContext *avctx)
453 {
454  X264Context *x4 = avctx->priv_data;
455  AVCPBProperties *cpb_props;
456  int sw,sh;
457 
458  if (avctx->global_quality > 0)
459  av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
460 
461 #if CONFIG_LIBX262_ENCODER
462  if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
463  x4->params.b_mpeg2 = 1;
464  x264_param_default_mpeg2(&x4->params);
465  } else
466 #endif
467  x264_param_default(&x4->params);
468 
469  x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
470 
471  if (x4->preset || x4->tune)
472  if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
473  int i;
474  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
475  av_log(avctx, AV_LOG_INFO, "Possible presets:");
476  for (i = 0; x264_preset_names[i]; i++)
477  av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
478  av_log(avctx, AV_LOG_INFO, "\n");
479  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
480  for (i = 0; x264_tune_names[i]; i++)
481  av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
482  av_log(avctx, AV_LOG_INFO, "\n");
483  return AVERROR(EINVAL);
484  }
485 
486  if (avctx->level > 0)
487  x4->params.i_level_idc = avctx->level;
488 
489  x4->params.pf_log = X264_log;
490  x4->params.p_log_private = avctx;
491  x4->params.i_log_level = X264_LOG_DEBUG;
492  x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
493 
494  PARSE_X264_OPT("weightp", wpredp);
495 
496  if (avctx->bit_rate) {
497  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
498  x4->params.rc.i_rc_method = X264_RC_ABR;
499  }
500  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
501  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
502  x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
503  if (avctx->flags & AV_CODEC_FLAG_PASS2) {
504  x4->params.rc.b_stat_read = 1;
505  } else {
506  if (x4->crf >= 0) {
507  x4->params.rc.i_rc_method = X264_RC_CRF;
508  x4->params.rc.f_rf_constant = x4->crf;
509  } else if (x4->cqp >= 0) {
510  x4->params.rc.i_rc_method = X264_RC_CQP;
511  x4->params.rc.i_qp_constant = x4->cqp;
512  }
513 
514  if (x4->crf_max >= 0)
515  x4->params.rc.f_rf_constant_max = x4->crf_max;
516  }
517 
518  if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
519  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
520  x4->params.rc.f_vbv_buffer_init =
521  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
522  }
523 
524  PARSE_X264_OPT("level", level);
525 
526  if (avctx->i_quant_factor > 0)
527  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
528  if (avctx->b_quant_factor > 0)
529  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
530 
531 #if FF_API_PRIVATE_OPT
533  if (avctx->chromaoffset >= 0)
534  x4->chroma_offset = avctx->chromaoffset;
536 #endif
537  if (x4->chroma_offset >= 0)
538  x4->params.analyse.i_chroma_qp_offset = x4->chroma_offset;
539 
540  if (avctx->gop_size >= 0)
541  x4->params.i_keyint_max = avctx->gop_size;
542  if (avctx->max_b_frames >= 0)
543  x4->params.i_bframe = avctx->max_b_frames;
544 
545 #if FF_API_PRIVATE_OPT
547  if (avctx->scenechange_threshold >= 0)
550 #endif
551  if (x4->scenechange_threshold >= 0)
552  x4->params.i_scenecut_threshold = x4->scenechange_threshold;
553 
554  if (avctx->qmin >= 0)
555  x4->params.rc.i_qp_min = avctx->qmin;
556  if (avctx->qmax >= 0)
557  x4->params.rc.i_qp_max = avctx->qmax;
558  if (avctx->max_qdiff >= 0)
559  x4->params.rc.i_qp_step = avctx->max_qdiff;
560  if (avctx->qblur >= 0)
561  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
562  if (avctx->qcompress >= 0)
563  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
564  if (avctx->refs >= 0)
565  x4->params.i_frame_reference = avctx->refs;
566  else if (x4->level) {
567  int i;
568  int mbn = AV_CEIL_RSHIFT(avctx->width, 4) * AV_CEIL_RSHIFT(avctx->height, 4);
569  int level_id = -1;
570  char *tail;
571  int scale = X264_BUILD < 129 ? 384 : 1;
572 
573  if (!strcmp(x4->level, "1b")) {
574  level_id = 9;
575  } else if (strlen(x4->level) <= 3){
576  level_id = av_strtod(x4->level, &tail) * 10 + 0.5;
577  if (*tail)
578  level_id = -1;
579  }
580  if (level_id <= 0)
581  av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");
582 
583  for (i = 0; i<x264_levels[i].level_idc; i++)
584  if (x264_levels[i].level_idc == level_id)
585  x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
586  }
587 
588  if (avctx->trellis >= 0)
589  x4->params.analyse.i_trellis = avctx->trellis;
590  if (avctx->me_range >= 0)
591  x4->params.analyse.i_me_range = avctx->me_range;
592 #if FF_API_PRIVATE_OPT
594  if (avctx->noise_reduction >= 0)
595  x4->noise_reduction = avctx->noise_reduction;
597 #endif
598  if (x4->noise_reduction >= 0)
599  x4->params.analyse.i_noise_reduction = x4->noise_reduction;
600  if (avctx->me_subpel_quality >= 0)
601  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
602 #if FF_API_PRIVATE_OPT
604  if (avctx->b_frame_strategy >= 0)
605  x4->b_frame_strategy = avctx->b_frame_strategy;
607 #endif
608  if (avctx->keyint_min >= 0)
609  x4->params.i_keyint_min = avctx->keyint_min;
610 #if FF_API_CODER_TYPE
612  if (avctx->coder_type >= 0)
613  x4->coder = avctx->coder_type == FF_CODER_TYPE_AC;
615 #endif
616  if (avctx->me_cmp >= 0)
617  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
618 
619  if (x4->aq_mode >= 0)
620  x4->params.rc.i_aq_mode = x4->aq_mode;
621  if (x4->aq_strength >= 0)
622  x4->params.rc.f_aq_strength = x4->aq_strength;
623  PARSE_X264_OPT("psy-rd", psy_rd);
624  PARSE_X264_OPT("deblock", deblock);
625  PARSE_X264_OPT("partitions", partitions);
626  PARSE_X264_OPT("stats", stats);
627  if (x4->psy >= 0)
628  x4->params.analyse.b_psy = x4->psy;
629  if (x4->rc_lookahead >= 0)
630  x4->params.rc.i_lookahead = x4->rc_lookahead;
631  if (x4->weightp >= 0)
632  x4->params.analyse.i_weighted_pred = x4->weightp;
633  if (x4->weightb >= 0)
634  x4->params.analyse.b_weighted_bipred = x4->weightb;
635  if (x4->cplxblur >= 0)
636  x4->params.rc.f_complexity_blur = x4->cplxblur;
637 
638  if (x4->ssim >= 0)
639  x4->params.analyse.b_ssim = x4->ssim;
640  if (x4->intra_refresh >= 0)
641  x4->params.b_intra_refresh = x4->intra_refresh;
642  if (x4->bluray_compat >= 0) {
643  x4->params.b_bluray_compat = x4->bluray_compat;
644  x4->params.b_vfr_input = 0;
645  }
646  if (x4->avcintra_class >= 0)
647 #if X264_BUILD >= 142
648  x4->params.i_avcintra_class = x4->avcintra_class;
649 #else
650  av_log(avctx, AV_LOG_ERROR,
651  "x264 too old for AVC Intra, at least version 142 needed\n");
652 #endif
653  if (x4->b_bias != INT_MIN)
654  x4->params.i_bframe_bias = x4->b_bias;
655  if (x4->b_pyramid >= 0)
656  x4->params.i_bframe_pyramid = x4->b_pyramid;
657  if (x4->mixed_refs >= 0)
658  x4->params.analyse.b_mixed_references = x4->mixed_refs;
659  if (x4->dct8x8 >= 0)
660  x4->params.analyse.b_transform_8x8 = x4->dct8x8;
661  if (x4->fast_pskip >= 0)
662  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
663  if (x4->aud >= 0)
664  x4->params.b_aud = x4->aud;
665  if (x4->mbtree >= 0)
666  x4->params.rc.b_mb_tree = x4->mbtree;
667  if (x4->direct_pred >= 0)
668  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
669 
670  if (x4->slice_max_size >= 0)
671  x4->params.i_slice_max_size = x4->slice_max_size;
672 
673  if (x4->fastfirstpass)
674  x264_param_apply_fastfirstpass(&x4->params);
675 
676  /* Allow specifying the x264 profile through AVCodecContext. */
677  if (!x4->profile)
678  switch (avctx->profile) {
680  x4->profile = av_strdup("baseline");
681  break;
683  x4->profile = av_strdup("high");
684  break;
686  x4->profile = av_strdup("high10");
687  break;
689  x4->profile = av_strdup("high422");
690  break;
692  x4->profile = av_strdup("high444");
693  break;
695  x4->profile = av_strdup("main");
696  break;
697  default:
698  break;
699  }
700 
701  if (x4->nal_hrd >= 0)
702  x4->params.i_nal_hrd = x4->nal_hrd;
703 
704  if (x4->motion_est >= 0) {
705  x4->params.analyse.i_me_method = x4->motion_est;
706 #if FF_API_MOTION_EST
708  } else {
709  if (avctx->me_method == ME_EPZS)
710  x4->params.analyse.i_me_method = X264_ME_DIA;
711  else if (avctx->me_method == ME_HEX)
712  x4->params.analyse.i_me_method = X264_ME_HEX;
713  else if (avctx->me_method == ME_UMH)
714  x4->params.analyse.i_me_method = X264_ME_UMH;
715  else if (avctx->me_method == ME_FULL)
716  x4->params.analyse.i_me_method = X264_ME_ESA;
717  else if (avctx->me_method == ME_TESA)
718  x4->params.analyse.i_me_method = X264_ME_TESA;
720 #endif
721  }
722 
723  if (x4->coder >= 0)
724  x4->params.b_cabac = x4->coder;
725 
726  if (x4->b_frame_strategy >= 0)
727  x4->params.i_bframe_adaptive = x4->b_frame_strategy;
728 
729  if (x4->profile)
730  if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
731  int i;
732  av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
733  av_log(avctx, AV_LOG_INFO, "Possible profiles:");
734  for (i = 0; x264_profile_names[i]; i++)
735  av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
736  av_log(avctx, AV_LOG_INFO, "\n");
737  return AVERROR(EINVAL);
738  }
739 
740  x4->params.i_width = avctx->width;
741  x4->params.i_height = avctx->height;
742  av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
743  x4->params.vui.i_sar_width = sw;
744  x4->params.vui.i_sar_height = sh;
745  x4->params.i_timebase_den = avctx->time_base.den;
746  x4->params.i_timebase_num = avctx->time_base.num;
747  x4->params.i_fps_num = avctx->time_base.den;
748  x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
749 
750  x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
751 
752  x4->params.i_threads = avctx->thread_count;
753  if (avctx->thread_type)
754  x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
755 
756  x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
757 
758  x4->params.b_open_gop = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
759 
760  x4->params.i_slice_count = avctx->slices;
761 
762  x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
763  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
764  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
765  avctx->color_range == AVCOL_RANGE_JPEG;
766 
767  if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
768  x4->params.vui.i_colmatrix = avctx->colorspace;
770  x4->params.vui.i_colorprim = avctx->color_primaries;
771  if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
772  x4->params.vui.i_transfer = avctx->color_trc;
773 
774  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
775  x4->params.b_repeat_headers = 0;
776 
777  if(x4->x264opts){
778  const char *p= x4->x264opts;
779  while(p){
780  char param[4096]={0}, val[4096]={0};
781  if(sscanf(p, "%4095[^:=]=%4095[^:]", param, val) == 1){
782  OPT_STR(param, "1");
783  }else
784  OPT_STR(param, val);
785  p= strchr(p, ':');
786  p+=!!p;
787  }
788  }
789 
790  if (x4->x264_params) {
791  AVDictionary *dict = NULL;
792  AVDictionaryEntry *en = NULL;
793 
794  if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
795  while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
796  if (x264_param_parse(&x4->params, en->key, en->value) < 0)
797  av_log(avctx, AV_LOG_WARNING,
798  "Error parsing option '%s = %s'.\n",
799  en->key, en->value);
800  }
801 
802  av_dict_free(&dict);
803  }
804  }
805 
806  // update AVCodecContext with x264 parameters
807  avctx->has_b_frames = x4->params.i_bframe ?
808  x4->params.i_bframe_pyramid ? 2 : 1 : 0;
809  if (avctx->max_b_frames < 0)
810  avctx->max_b_frames = 0;
811 
812  avctx->bit_rate = x4->params.rc.i_bitrate*1000;
813 
814  x4->enc = x264_encoder_open(&x4->params);
815  if (!x4->enc)
816  return AVERROR_EXTERNAL;
817 
818  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
819  x264_nal_t *nal;
820  uint8_t *p;
821  int nnal, s, i;
822 
823  s = x264_encoder_headers(x4->enc, &nal, &nnal);
825  if (!p)
826  return AVERROR(ENOMEM);
827 
828  for (i = 0; i < nnal; i++) {
829  /* Don't put the SEI in extradata. */
830  if (nal[i].i_type == NAL_SEI) {
831  av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
832  x4->sei_size = nal[i].i_payload;
833  x4->sei = av_malloc(x4->sei_size);
834  if (!x4->sei)
835  return AVERROR(ENOMEM);
836  memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
837  continue;
838  }
839  memcpy(p, nal[i].p_payload, nal[i].i_payload);
840  p += nal[i].i_payload;
841  }
842  avctx->extradata_size = p - avctx->extradata;
843  }
844 
845  cpb_props = ff_add_cpb_side_data(avctx);
846  if (!cpb_props)
847  return AVERROR(ENOMEM);
848  cpb_props->buffer_size = x4->params.rc.i_vbv_buffer_size * 1000;
849  cpb_props->max_bitrate = x4->params.rc.i_vbv_max_bitrate * 1000;
850  cpb_props->avg_bitrate = x4->params.rc.i_bitrate * 1000;
851 
852  return 0;
853 }
854 
855 static const enum AVPixelFormat pix_fmts_8bit[] = {
864 #ifdef X264_CSP_NV21
866 #endif
868 };
869 static const enum AVPixelFormat pix_fmts_9bit[] = {
873 };
874 static const enum AVPixelFormat pix_fmts_10bit[] = {
880 };
881 #if CONFIG_LIBX264RGB_ENCODER
882 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
887 };
888 #endif
889 
890 static av_cold void X264_init_static(AVCodec *codec)
891 {
892  if (x264_bit_depth == 8)
893  codec->pix_fmts = pix_fmts_8bit;
894  else if (x264_bit_depth == 9)
895  codec->pix_fmts = pix_fmts_9bit;
896  else if (x264_bit_depth == 10)
897  codec->pix_fmts = pix_fmts_10bit;
898 }
899 
900 #define OFFSET(x) offsetof(X264Context, x)
901 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
902 static const AVOption options[] = {
903  { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
904  { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
905  { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
906  { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},
907  {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
908  {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
909  {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
910  {"a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, VE},
911  {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
912  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
913  { "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 },
914  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
915  { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
916  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
917  { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
918  { "autovariance", "Auto-variance AQ", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
919 #if X264_BUILD >= 144
920  { "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" },
921 #endif
922  { "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},
923  { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
924  { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
925  { "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 },
926  { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
927  { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
928  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
929  { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
930  { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
931  { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
932  { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
933  { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
934  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
935  { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
936  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
937  { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
938  { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
939  { "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 },
940  { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
941  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
942  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
943  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE},
944  { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
945  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
946  { "partitions", "A comma-separated list of partitions to consider. "
947  "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
948  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
949  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
950  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
951  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
952  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
953  { "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 },
954  { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
955  { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
956  "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
957  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
958  { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
959  { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
960  { "avcintra-class","AVC-Intra class 50/100/200", OFFSET(avcintra_class),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 200 , VE},
961  { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
962  { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
963  { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
964  { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
965  { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
966  { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
967  { "forced-idr", "If forcing keyframes, force them as IDR frames.", OFFSET(forced_idr), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
968  { "coder", "Coder type", OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "coder" },
969  { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, "coder" },
970  { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
971  { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
972  { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
973  { "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
974  { "b_strategy", "Strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 2, VE },
975  { "chromaoffset", "QP difference between chroma and luma", OFFSET(chroma_offset), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
976  { "sc_threshold", "Scene change threshold", OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
977  { "noise_reduction", "Noise reduction", OFFSET(noise_reduction), AV_OPT_TYPE_INT, { .i64 = -1 }, INT_MIN, INT_MAX, VE },
978 
979  { "x264-params", "Override the x264 configuration using a :-separated list of key=value parameters", OFFSET(x264_params), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
980  { NULL },
981 };
982 
983 static const AVCodecDefault x264_defaults[] = {
984  { "b", "0" },
985  { "bf", "-1" },
986  { "flags2", "0" },
987  { "g", "-1" },
988  { "i_qfactor", "-1" },
989  { "b_qfactor", "-1" },
990  { "qmin", "-1" },
991  { "qmax", "-1" },
992  { "qdiff", "-1" },
993  { "qblur", "-1" },
994  { "qcomp", "-1" },
995 // { "rc_lookahead", "-1" },
996  { "refs", "-1" },
997 #if FF_API_PRIVATE_OPT
998  { "sc_threshold", "-1" },
999 #endif
1000  { "trellis", "-1" },
1001 #if FF_API_PRIVATE_OPT
1002  { "nr", "-1" },
1003 #endif
1004  { "me_range", "-1" },
1005 #if FF_API_MOTION_EST
1006  { "me_method", "-1" },
1007 #endif
1008  { "subq", "-1" },
1009 #if FF_API_PRIVATE_OPT
1010  { "b_strategy", "-1" },
1011 #endif
1012  { "keyint_min", "-1" },
1013 #if FF_API_CODER_TYPE
1014  { "coder", "-1" },
1015 #endif
1016  { "cmp", "-1" },
1017  { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
1018  { "thread_type", "0" },
1019  { "flags", "+cgop" },
1020  { "rc_init_occupancy","-1" },
1021  { NULL },
1022 };
1023 
1024 #if CONFIG_LIBX264_ENCODER
1025 static const AVClass x264_class = {
1026  .class_name = "libx264",
1027  .item_name = av_default_item_name,
1028  .option = options,
1029  .version = LIBAVUTIL_VERSION_INT,
1030 };
1031 
1032 AVCodec ff_libx264_encoder = {
1033  .name = "libx264",
1034  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
1035  .type = AVMEDIA_TYPE_VIDEO,
1036  .id = AV_CODEC_ID_H264,
1037  .priv_data_size = sizeof(X264Context),
1038  .init = X264_init,
1039  .encode2 = X264_frame,
1040  .close = X264_close,
1042  .priv_class = &x264_class,
1043  .defaults = x264_defaults,
1044  .init_static_data = X264_init_static,
1045  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1047 };
1048 #endif
1049 
1050 #if CONFIG_LIBX264RGB_ENCODER
1051 static const AVClass rgbclass = {
1052  .class_name = "libx264rgb",
1053  .item_name = av_default_item_name,
1054  .option = options,
1055  .version = LIBAVUTIL_VERSION_INT,
1056 };
1057 
1058 AVCodec ff_libx264rgb_encoder = {
1059  .name = "libx264rgb",
1060  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
1061  .type = AVMEDIA_TYPE_VIDEO,
1062  .id = AV_CODEC_ID_H264,
1063  .priv_data_size = sizeof(X264Context),
1064  .init = X264_init,
1065  .encode2 = X264_frame,
1066  .close = X264_close,
1068  .priv_class = &rgbclass,
1069  .defaults = x264_defaults,
1070  .pix_fmts = pix_fmts_8bit_rgb,
1071 };
1072 #endif
1073 
1074 #if CONFIG_LIBX262_ENCODER
1075 static const AVClass X262_class = {
1076  .class_name = "libx262",
1077  .item_name = av_default_item_name,
1078  .option = options,
1079  .version = LIBAVUTIL_VERSION_INT,
1080 };
1081 
1082 AVCodec ff_libx262_encoder = {
1083  .name = "libx262",
1084  .long_name = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),
1085  .type = AVMEDIA_TYPE_VIDEO,
1086  .id = AV_CODEC_ID_MPEG2VIDEO,
1087  .priv_data_size = sizeof(X264Context),
1088  .init = X264_init,
1089  .encode2 = X264_frame,
1090  .close = X264_close,
1092  .priv_class = &X262_class,
1093  .defaults = x264_defaults,
1095  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1097 };
1098 #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:3205
static int convert_pix_fmt(enum AVPixelFormat pix_fmt)
Definition: libx264.c:413
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
const char * s
Definition: avisynth_c.h:768
static enum AVPixelFormat pix_fmt
static int avfmt2_num_planes(int avfmt)
Definition: libx264.c:151
char * partitions
Definition: libx264.c:79
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
int dct8x8
Definition: libx264.c:73
AVOption.
Definition: opt.h:245
int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
Definition: avpacket.c:641
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:873
#define AV_CODEC_FLAG_LOOP_FILTER
loop filter.
Definition: avcodec.h:856
const char * fmt
Definition: avisynth_c.h:769
float qblur
amount of qscale smoothing over time (0.0-1.0)
Definition: avcodec.h:2595
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1724
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
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:1305
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:1945
int noise_reduction
Definition: libx264.c:92
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2698
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2396
int num
Numerator.
Definition: rational.h:59
enhanced predictive zonal search
Definition: avcodec.h:765
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:2070
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1887
int bluray_compat
Definition: libx264.c:69
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:252
char * wpredp
Definition: libx264.c:55
static void X264_log(void *p, int level, const char *fmt, va_list args)
Definition: libx264.c:97
static AVPacket pkt
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1033
int profile
profile
Definition: avcodec.h:3164
Views are next to each other.
Definition: stereo3d.h:45
AVCodec.
Definition: avcodec.h:3573
static av_cold int X264_init(AVCodecContext *avctx)
Definition: libx264.c:452
attribute_deprecated int me_method
This option does nothing.
Definition: avcodec.h:1894
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1796
Undefined.
Definition: avutil.h:267
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:652
x264_param_t params
Definition: libx264.c:45
char * x264opts
Definition: libx264.c:56
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:983
#define FF_PROFILE_H264_BASELINE
Definition: avcodec.h:3203
#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
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:123
int me_range
maximum motion estimation search range in subpel units If 0 then no limit.
Definition: avcodec.h:2182
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:1954
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:268
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1774
int me_cmp
motion estimation comparison function
Definition: avcodec.h:2077
static AVFrame * frame
Structure to hold side data for an AVFrame.
Definition: frame.h:143
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:1590
int b_pyramid
Definition: libx264.c:71
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
x264_picture_t pic
Definition: libx264.c:47
float cplxblur
Definition: libx264.c:78
int buffer_size
The size of the buffer to which the ratecontrol is applied, in bits.
Definition: avcodec.h:1321
ptrdiff_t size
Definition: opengl_enc.c:101
#define FF_CMP_CHROMA
Definition: avcodec.h:2112
char * stats
Definition: libx264.c:82
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
int intra_refresh
Definition: libx264.c:68
#define AV_PIX_FMT_NV20
Definition: pixfmt.h:384
Views are alternated temporally.
Definition: stereo3d.h:66
#define av_log(a,...)
int rc_lookahead
Definition: libx264.c:64
hexagon based search
Definition: avcodec.h:767
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1622
static enum AVPixelFormat pix_fmts_10bit[]
Definition: libx264.c:874
#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:1981
int flags
Additional information about the frame packing.
Definition: stereo3d.h:132
static void dct8x8(int16_t *coef, int bit_depth)
Definition: h264dsp.c:161
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
int qmax
maximum quantizer
Definition: avcodec.h:2609
char * profile
Definition: libx264.c:52
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
int coder
Definition: libx264.c:87
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int fastfirstpass
Definition: libx264.c:54
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
#define FF_PROFILE_H264_HIGH_422
Definition: avcodec.h:3211
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:3207
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1754
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:90
int mbtree
Definition: libx264.c:76
const char * name
Name of the codec implementation.
Definition: avcodec.h:3580
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:1996
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:346
char * deblock
Definition: libx264.c:77
transformed exhaustive search algorithm
Definition: avcodec.h:769
int b_frame_strategy
Definition: libx264.c:89
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1596
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2636
common internal API header
char * psy_rd
Definition: libx264.c:62
as above, but U and V bytes are swapped
Definition: pixfmt.h:91
int refs
number of reference frames
Definition: avcodec.h:2340
int motion_est
Definition: libx264.c:85
static enum AVPixelFormat pix_fmts_9bit[]
Definition: libx264.c:869
Views are packed per line, as if interlaced.
Definition: stereo3d.h:97
#define PARSE_X264_OPT(name, var)
Definition: libx264.c:446
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3594
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:258
#define OPT_STR(opt, param)
Definition: libx264.c:399
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
int width
picture width / height.
Definition: avcodec.h:1846
int cqp
Definition: libx264.c:59
attribute_deprecated int noise_reduction
Definition: avcodec.h:2248
x264_t * enc
Definition: libx264.c:46
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:864
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:848
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2375
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition: avcodec.h:3102
int level
level
Definition: avcodec.h:3262
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:294
int scenechange_threshold
Definition: libx264.c:91
int slice_max_size
Definition: libx264.c:81
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1805
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:65
int nal_hrd
Definition: libx264.c:83
int max_qdiff
maximum quantizer difference between frames
Definition: avcodec.h:2616
int weightp
Definition: libx264.c:65
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:342
#define AV_STEREO3D_FLAG_INVERT
Inverted views, Right/Bottom represents the left view.
Definition: stereo3d.h:114
attribute_deprecated int coder_type
Definition: avcodec.h:2712
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:196
char * x264_params
Definition: libx264.c:94
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:3090
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:459
Views are packed per column.
Definition: stereo3d.h:107
static enum AVPixelFormat pix_fmts_8bit[]
Definition: libx264.c:855
static const AVCodecDefault x264_defaults[]
Definition: libx264.c:983
double av_strtod(const char *numstr, char **tail)
Parse the string in numstr and return its value as a double.
Definition: eval.c:98
int av_dict_parse_string(AVDictionary **pm, const char *str, const char *key_val_sep, const char *pairs_sep, int flags)
Parse the key/value pairs list and add the parsed entries to a dictionary.
Definition: dict.c:180
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1300
int avcintra_class
Definition: libx264.c:84
enum AVStereo3DType type
How views are packed within the video.
Definition: stereo3d.h:127
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
char * level
Definition: libx264.c:53
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:267
Libavcodec external API header.
static av_cold int X264_close(AVCodecContext *avctx)
Definition: libx264.c:384
attribute_deprecated int scenechange_threshold
Definition: avcodec.h:2244
enum AVCodecID codec_id
Definition: avcodec.h:1676
int forced_idr
Definition: libx264.c:86
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
attribute_deprecated int b_frame_strategy
Definition: avcodec.h:1965
main external API structure.
Definition: avcodec.h:1659
static const AVOption options[]
Definition: libx264.c:902
int qmin
minimum quantizer
Definition: avcodec.h:2602
uint8_t * data
Definition: frame.h:145
#define FF_CODER_TYPE_AC
Definition: avcodec.h:2702
int extradata_size
Definition: avcodec.h:1775
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:343
float crf
Definition: libx264.c:57
int aq_mode
Definition: libx264.c:60
int aud
Definition: libx264.c:75
#define AV_STRINGIFY(s)
Definition: macros.h:36
Describe the class of an AVClass context structure.
Definition: log.h:67
int a53_cc
Definition: libx264.c:88
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2389
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2382
uint8_t * sei
Definition: libx264.c:48
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:379
int psy
Definition: libx264.c:63
static int encode_nals(AVCodecContext *ctx, AVPacket *pkt, const x264_nal_t *nals, int nnal)
Definition: libx264.c:113
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:253
#define FF_PROFILE_H264_HIGH_444
Definition: avcodec.h:3214
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:340
attribute_deprecated int chromaoffset
Definition: avcodec.h:2345
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1689
float qcompress
amount of qscale change between easy & hard scenes (0.0-1.0)
Definition: avcodec.h:2594
int sei_size
Definition: libx264.c:49
static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)
Definition: libx264.c:171
char * preset
Definition: libx264.c:50
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
mfxU16 profile
Definition: qsvenc.c:42
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:1740
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:344
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
uint8_t level
Definition: svq3.c:206
int b_bias
Definition: libx264.c:70
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:881
int fast_pskip
Definition: libx264.c:74
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1872
int chroma_offset
Definition: libx264.c:90
static av_cold void X264_init_static(AVCodec *codec)
Definition: libx264.c:890
int mixed_refs
Definition: libx264.c:72
preset
Definition: vf_curves.c:46
char * tune
Definition: libx264.c:51
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:80
#define VE
Definition: libx264.c:901
int weightb
Definition: libx264.c:66
float aq_strength
Definition: libx264.c:61
common internal api header.
Video is not stereoscopic (and metadata has to be there).
Definition: stereo3d.h:35
Views are packed in a checkerboard-like structure per pixel.
Definition: stereo3d.h:76
Bi-dir predicted.
Definition: avutil.h:270
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:3081
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:212
int trellis
trellis RD quantization
Definition: avcodec.h:2758
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:3998
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:733
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:852
int slices
Number of slices.
Definition: avcodec.h:2412
void * priv_data
Definition: avcodec.h:1701
#define av_free(p)
char * value
Definition: dict.h:87
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:81
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:323
uneven multi-hexagon search
Definition: avcodec.h:768
int avg_bitrate
Average bitrate of the stream, in bits per second.
Definition: avcodec.h:1315
Views are on top of each other.
Definition: stereo3d.h:55
int ssim
Definition: libx264.c:67
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:221
static void stats(const struct CachedBuf *in, int n_in, unsigned *_max, unsigned *_sum)
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1589
float crf_max
Definition: libx264.c:58
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:4197
#define OFFSET(x)
Definition: libx264.c:900
int direct_pred
Definition: libx264.c:80
#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:271
#define AV_CODEC_FLAG_CLOSED_GOP
Definition: avcodec.h:895
static const AVCodecDefault defaults[]
Definition: dcaenc.c:975
#define FF_PROFILE_H264_HIGH_10
Definition: avcodec.h:3208
Stereoscopic 3d metadata.
Definition: frame.h:62
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1567
int me_subpel_quality
subpel ME quality
Definition: avcodec.h:2153
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1583
Predicted.
Definition: avutil.h:269
int thread_type
Which multithreading methods to use.
Definition: avcodec.h:3100
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2659
simple arithmetic expression evaluator
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
int keyint_min
minimum GOP size
Definition: avcodec.h:2333