FFmpeg  2.1.1
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/internal.h"
23 #include "libavutil/opt.h"
24 #include "libavutil/mem.h"
25 #include "libavutil/pixdesc.h"
26 #include "avcodec.h"
27 #include "internal.h"
28 
29 #if defined(_MSC_VER)
30 #define X264_API_IMPORTS 1
31 #endif
32 
33 #include <x264.h>
34 #include <float.h>
35 #include <math.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <string.h>
39 
40 typedef struct X264Context {
41  AVClass *class;
42  x264_param_t params;
43  x264_t *enc;
44  x264_picture_t pic;
46  int sei_size;
48  char *preset;
49  char *tune;
50  char *profile;
51  char *level;
53  char *wpredp;
54  char *x264opts;
55  float crf;
56  float crf_max;
57  int cqp;
58  int aq_mode;
59  float aq_strength;
60  char *psy_rd;
61  int psy;
63  int weightp;
64  int weightb;
65  int ssim;
68  int b_bias;
69  int b_pyramid;
71  int dct8x8;
73  int aud;
74  int mbtree;
75  char *deblock;
76  float cplxblur;
77  char *partitions;
80  char *stats;
81  int nal_hrd;
82  char *x264_params;
83 } X264Context;
84 
85 static void X264_log(void *p, int level, const char *fmt, va_list args)
86 {
87  static const int level_map[] = {
88  [X264_LOG_ERROR] = AV_LOG_ERROR,
89  [X264_LOG_WARNING] = AV_LOG_WARNING,
90  [X264_LOG_INFO] = AV_LOG_INFO,
91  [X264_LOG_DEBUG] = AV_LOG_DEBUG
92  };
93 
94  if (level < 0 || level > X264_LOG_DEBUG)
95  return;
96 
97  av_vlog(p, level_map[level], fmt, args);
98 }
99 
100 
102  x264_nal_t *nals, int nnal)
103 {
104  X264Context *x4 = ctx->priv_data;
105  uint8_t *p;
106  int i, size = x4->sei_size, ret;
107 
108  if (!nnal)
109  return 0;
110 
111  for (i = 0; i < nnal; i++)
112  size += nals[i].i_payload;
113 
114  if ((ret = ff_alloc_packet2(ctx, pkt, size)) < 0)
115  return ret;
116 
117  p = pkt->data;
118 
119  /* Write the SEI as part of the first frame. */
120  if (x4->sei_size > 0 && nnal > 0) {
121  if (x4->sei_size > size) {
122  av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
123  return -1;
124  }
125  memcpy(p, x4->sei, x4->sei_size);
126  p += x4->sei_size;
127  x4->sei_size = 0;
128  av_freep(&x4->sei);
129  }
130 
131  for (i = 0; i < nnal; i++){
132  memcpy(p, nals[i].p_payload, nals[i].i_payload);
133  p += nals[i].i_payload;
134  }
135 
136  return 1;
137 }
138 
139 static int avfmt2_num_planes(int avfmt)
140 {
141  switch (avfmt) {
142  case AV_PIX_FMT_YUV420P:
143  case AV_PIX_FMT_YUVJ420P:
144  case AV_PIX_FMT_YUV420P9:
146  case AV_PIX_FMT_YUV444P:
147  return 3;
148 
149  case AV_PIX_FMT_BGR24:
150  case AV_PIX_FMT_RGB24:
151  return 1;
152 
153  default:
154  return 3;
155  }
156 }
157 
158 static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
159  int *got_packet)
160 {
161  X264Context *x4 = ctx->priv_data;
162  x264_nal_t *nal;
163  int nnal, i, ret;
164  x264_picture_t pic_out = {0};
165 
166  x264_picture_init( &x4->pic );
167  x4->pic.img.i_csp = x4->params.i_csp;
168  if (x264_bit_depth > 8)
169  x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
170  x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
171 
172  if (frame) {
173  for (i = 0; i < x4->pic.img.i_plane; i++) {
174  x4->pic.img.plane[i] = frame->data[i];
175  x4->pic.img.i_stride[i] = frame->linesize[i];
176  }
177 
178  x4->pic.i_pts = frame->pts;
179  x4->pic.i_type =
180  frame->pict_type == AV_PICTURE_TYPE_I ? X264_TYPE_KEYFRAME :
181  frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P :
182  frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B :
183  X264_TYPE_AUTO;
184  if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
185  x4->params.b_tff = frame->top_field_first;
186  x264_encoder_reconfig(x4->enc, &x4->params);
187  }
188  if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den ||
189  x4->params.vui.i_sar_width != ctx->sample_aspect_ratio.num) {
190  x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
191  x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
192  x264_encoder_reconfig(x4->enc, &x4->params);
193  }
194  }
195 
196  do {
197  if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
198  return -1;
199 
200  ret = encode_nals(ctx, pkt, nal, nnal);
201  if (ret < 0)
202  return -1;
203  } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
204 
205  pkt->pts = pic_out.i_pts;
206  pkt->dts = pic_out.i_dts;
207 
208  switch (pic_out.i_type) {
209  case X264_TYPE_IDR:
210  case X264_TYPE_I:
212  break;
213  case X264_TYPE_P:
215  break;
216  case X264_TYPE_B:
217  case X264_TYPE_BREF:
219  break;
220  }
221 
222  pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
223  if (ret)
224  x4->out_pic.quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
225 
226  *got_packet = ret;
227  return 0;
228 }
229 
231 {
232  X264Context *x4 = avctx->priv_data;
233 
234  av_freep(&avctx->extradata);
235  av_free(x4->sei);
236 
237  if (x4->enc)
238  x264_encoder_close(x4->enc);
239 
240  return 0;
241 }
242 
243 #define OPT_STR(opt, param) \
244  do { \
245  int ret; \
246  if (param!=NULL && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
247  if(ret == X264_PARAM_BAD_NAME) \
248  av_log(avctx, AV_LOG_ERROR, \
249  "bad option '%s': '%s'\n", opt, param); \
250  else \
251  av_log(avctx, AV_LOG_ERROR, \
252  "bad value for '%s': '%s'\n", opt, param); \
253  return -1; \
254  } \
255  } while (0)
256 
258 {
259  switch (pix_fmt) {
260  case AV_PIX_FMT_YUV420P:
261  case AV_PIX_FMT_YUVJ420P:
262  case AV_PIX_FMT_YUV420P9:
263  case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
264  case AV_PIX_FMT_YUV422P:
265  case AV_PIX_FMT_YUVJ422P:
266  case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
267  case AV_PIX_FMT_YUV444P:
268  case AV_PIX_FMT_YUVJ444P:
269  case AV_PIX_FMT_YUV444P9:
270  case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
271 #ifdef X264_CSP_BGR
272  case AV_PIX_FMT_BGR24:
273  return X264_CSP_BGR;
274 
275  case AV_PIX_FMT_RGB24:
276  return X264_CSP_RGB;
277 #endif
278  case AV_PIX_FMT_NV12: return X264_CSP_NV12;
279  case AV_PIX_FMT_NV16:
280  case AV_PIX_FMT_NV20: return X264_CSP_NV16;
281  };
282  return 0;
283 }
284 
285 #define PARSE_X264_OPT(name, var)\
286  if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
287  av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
288  return AVERROR(EINVAL);\
289  }
290 
291 static av_cold int X264_init(AVCodecContext *avctx)
292 {
293  X264Context *x4 = avctx->priv_data;
294  int sw,sh;
295 
296  x264_param_default(&x4->params);
297 
298  x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
299 
300  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
301  x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
302  if (x4->preset || x4->tune)
303  if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
304  int i;
305  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
306  av_log(avctx, AV_LOG_INFO, "Possible presets:");
307  for (i = 0; x264_preset_names[i]; i++)
308  av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
309  av_log(avctx, AV_LOG_INFO, "\n");
310  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
311  for (i = 0; x264_tune_names[i]; i++)
312  av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
313  av_log(avctx, AV_LOG_INFO, "\n");
314  return AVERROR(EINVAL);
315  }
316 
317  if (avctx->level > 0)
318  x4->params.i_level_idc = avctx->level;
319 
320  x4->params.pf_log = X264_log;
321  x4->params.p_log_private = avctx;
322  x4->params.i_log_level = X264_LOG_DEBUG;
323  x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
324 
325  OPT_STR("weightp", x4->wpredp);
326 
327  if (avctx->bit_rate) {
328  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
329  x4->params.rc.i_rc_method = X264_RC_ABR;
330  }
331  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
332  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
333  x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;
334  if (avctx->flags & CODEC_FLAG_PASS2) {
335  x4->params.rc.b_stat_read = 1;
336  } else {
337  if (x4->crf >= 0) {
338  x4->params.rc.i_rc_method = X264_RC_CRF;
339  x4->params.rc.f_rf_constant = x4->crf;
340  } else if (x4->cqp >= 0) {
341  x4->params.rc.i_rc_method = X264_RC_CQP;
342  x4->params.rc.i_qp_constant = x4->cqp;
343  }
344 
345  if (x4->crf_max >= 0)
346  x4->params.rc.f_rf_constant_max = x4->crf_max;
347  }
348 
349  if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
350  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
351  x4->params.rc.f_vbv_buffer_init =
352  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
353  }
354 
355  OPT_STR("level", x4->level);
356 
357  if(x4->x264opts){
358  const char *p= x4->x264opts;
359  while(p){
360  char param[256]={0}, val[256]={0};
361  if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){
362  OPT_STR(param, "1");
363  }else
364  OPT_STR(param, val);
365  p= strchr(p, ':');
366  p+=!!p;
367  }
368  }
369 
370  if (avctx->i_quant_factor > 0)
371  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
372 
373  if (avctx->me_method == ME_EPZS)
374  x4->params.analyse.i_me_method = X264_ME_DIA;
375  else if (avctx->me_method == ME_HEX)
376  x4->params.analyse.i_me_method = X264_ME_HEX;
377  else if (avctx->me_method == ME_UMH)
378  x4->params.analyse.i_me_method = X264_ME_UMH;
379  else if (avctx->me_method == ME_FULL)
380  x4->params.analyse.i_me_method = X264_ME_ESA;
381  else if (avctx->me_method == ME_TESA)
382  x4->params.analyse.i_me_method = X264_ME_TESA;
383 
384  if (avctx->gop_size >= 0)
385  x4->params.i_keyint_max = avctx->gop_size;
386  if (avctx->max_b_frames >= 0)
387  x4->params.i_bframe = avctx->max_b_frames;
388  if (avctx->scenechange_threshold >= 0)
389  x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
390  if (avctx->qmin >= 0)
391  x4->params.rc.i_qp_min = avctx->qmin;
392  if (avctx->qmax >= 0)
393  x4->params.rc.i_qp_max = avctx->qmax;
394  if (avctx->max_qdiff >= 0)
395  x4->params.rc.i_qp_step = avctx->max_qdiff;
396  if (avctx->qblur >= 0)
397  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
398  if (avctx->qcompress >= 0)
399  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
400  if (avctx->refs >= 0)
401  x4->params.i_frame_reference = avctx->refs;
402  if (avctx->trellis >= 0)
403  x4->params.analyse.i_trellis = avctx->trellis;
404  if (avctx->me_range >= 0)
405  x4->params.analyse.i_me_range = avctx->me_range;
406  if (avctx->noise_reduction >= 0)
407  x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
408  if (avctx->me_subpel_quality >= 0)
409  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
410  if (avctx->b_frame_strategy >= 0)
411  x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
412  if (avctx->keyint_min >= 0)
413  x4->params.i_keyint_min = avctx->keyint_min;
414  if (avctx->coder_type >= 0)
415  x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
416  if (avctx->me_cmp >= 0)
417  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
418 
419  if (x4->aq_mode >= 0)
420  x4->params.rc.i_aq_mode = x4->aq_mode;
421  if (x4->aq_strength >= 0)
422  x4->params.rc.f_aq_strength = x4->aq_strength;
423  PARSE_X264_OPT("psy-rd", psy_rd);
424  PARSE_X264_OPT("deblock", deblock);
425  PARSE_X264_OPT("partitions", partitions);
426  PARSE_X264_OPT("stats", stats);
427  if (x4->psy >= 0)
428  x4->params.analyse.b_psy = x4->psy;
429  if (x4->rc_lookahead >= 0)
430  x4->params.rc.i_lookahead = x4->rc_lookahead;
431  if (x4->weightp >= 0)
432  x4->params.analyse.i_weighted_pred = x4->weightp;
433  if (x4->weightb >= 0)
434  x4->params.analyse.b_weighted_bipred = x4->weightb;
435  if (x4->cplxblur >= 0)
436  x4->params.rc.f_complexity_blur = x4->cplxblur;
437 
438  if (x4->ssim >= 0)
439  x4->params.analyse.b_ssim = x4->ssim;
440  if (x4->intra_refresh >= 0)
441  x4->params.b_intra_refresh = x4->intra_refresh;
442  if (x4->bluray_compat >= 0) {
443  x4->params.b_bluray_compat = x4->bluray_compat;
444  x4->params.b_vfr_input = 0;
445  }
446  if (x4->b_bias != INT_MIN)
447  x4->params.i_bframe_bias = x4->b_bias;
448  if (x4->b_pyramid >= 0)
449  x4->params.i_bframe_pyramid = x4->b_pyramid;
450  if (x4->mixed_refs >= 0)
451  x4->params.analyse.b_mixed_references = x4->mixed_refs;
452  if (x4->dct8x8 >= 0)
453  x4->params.analyse.b_transform_8x8 = x4->dct8x8;
454  if (x4->fast_pskip >= 0)
455  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
456  if (x4->aud >= 0)
457  x4->params.b_aud = x4->aud;
458  if (x4->mbtree >= 0)
459  x4->params.rc.b_mb_tree = x4->mbtree;
460  if (x4->direct_pred >= 0)
461  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
462 
463  if (x4->slice_max_size >= 0)
464  x4->params.i_slice_max_size = x4->slice_max_size;
465  else {
466  /*
467  * Allow x264 to be instructed through AVCodecContext about the maximum
468  * size of the RTP payload. For example, this enables the production of
469  * payload suitable for the H.264 RTP packetization-mode 0 i.e. single
470  * NAL unit per RTP packet.
471  */
472  if (avctx->rtp_payload_size)
473  x4->params.i_slice_max_size = avctx->rtp_payload_size;
474  }
475 
476  if (x4->fastfirstpass)
477  x264_param_apply_fastfirstpass(&x4->params);
478 
479  /* Allow specifying the x264 profile through AVCodecContext. */
480  if (!x4->profile)
481  switch (avctx->profile) {
483  x4->profile = av_strdup("baseline");
484  break;
486  x4->profile = av_strdup("high");
487  break;
489  x4->profile = av_strdup("high10");
490  break;
492  x4->profile = av_strdup("high422");
493  break;
495  x4->profile = av_strdup("high444");
496  break;
498  x4->profile = av_strdup("main");
499  break;
500  default:
501  break;
502  }
503 
504  if (x4->nal_hrd >= 0)
505  x4->params.i_nal_hrd = x4->nal_hrd;
506 
507  if (x4->profile)
508  if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
509  int i;
510  av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
511  av_log(avctx, AV_LOG_INFO, "Possible profiles:");
512  for (i = 0; x264_profile_names[i]; i++)
513  av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
514  av_log(avctx, AV_LOG_INFO, "\n");
515  return AVERROR(EINVAL);
516  }
517 
518  x4->params.i_width = avctx->width;
519  x4->params.i_height = avctx->height;
520  av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
521  x4->params.vui.i_sar_width = sw;
522  x4->params.vui.i_sar_height = sh;
523  x4->params.i_fps_num = x4->params.i_timebase_den = avctx->time_base.den;
524  x4->params.i_fps_den = x4->params.i_timebase_num = avctx->time_base.num;
525 
526  x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;
527 
528  x4->params.i_threads = avctx->thread_count;
529  if (avctx->thread_type)
530  x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
531 
532  x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT;
533 
534  x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP);
535 
536  x4->params.i_slice_count = avctx->slices;
537 
538  x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
539  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
540  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P;
541 
542  if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)
543  x4->params.b_repeat_headers = 0;
544 
545  if (x4->x264_params) {
546  AVDictionary *dict = NULL;
547  AVDictionaryEntry *en = NULL;
548 
549  if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
550  while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
551  if (x264_param_parse(&x4->params, en->key, en->value) < 0)
552  av_log(avctx, AV_LOG_WARNING,
553  "Error parsing option '%s = %s'.\n",
554  en->key, en->value);
555  }
556 
557  av_dict_free(&dict);
558  }
559  }
560 
561  // update AVCodecContext with x264 parameters
562  avctx->has_b_frames = x4->params.i_bframe ?
563  x4->params.i_bframe_pyramid ? 2 : 1 : 0;
564  if (avctx->max_b_frames < 0)
565  avctx->max_b_frames = 0;
566 
567  avctx->bit_rate = x4->params.rc.i_bitrate*1000;
568 
569  x4->enc = x264_encoder_open(&x4->params);
570  if (!x4->enc)
571  return -1;
572 
573  avctx->coded_frame = &x4->out_pic;
574 
575  if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
576  x264_nal_t *nal;
577  uint8_t *p;
578  int nnal, s, i;
579 
580  s = x264_encoder_headers(x4->enc, &nal, &nnal);
581  avctx->extradata = p = av_malloc(s);
582 
583  for (i = 0; i < nnal; i++) {
584  /* Don't put the SEI in extradata. */
585  if (nal[i].i_type == NAL_SEI) {
586  av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
587  x4->sei_size = nal[i].i_payload;
588  x4->sei = av_malloc(x4->sei_size);
589  memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
590  continue;
591  }
592  memcpy(p, nal[i].p_payload, nal[i].i_payload);
593  p += nal[i].i_payload;
594  }
595  avctx->extradata_size = p - avctx->extradata;
596  }
597 
598  return 0;
599 }
600 
601 static const enum AVPixelFormat pix_fmts_8bit[] = {
611 };
612 static const enum AVPixelFormat pix_fmts_9bit[] = {
616 };
617 static const enum AVPixelFormat pix_fmts_10bit[] = {
623 };
624 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
625 #ifdef X264_CSP_BGR
628 #endif
630 };
631 
632 static av_cold void X264_init_static(AVCodec *codec)
633 {
634  if (x264_bit_depth == 8)
635  codec->pix_fmts = pix_fmts_8bit;
636  else if (x264_bit_depth == 9)
637  codec->pix_fmts = pix_fmts_9bit;
638  else if (x264_bit_depth == 10)
639  codec->pix_fmts = pix_fmts_10bit;
640 }
641 
642 #define OFFSET(x) offsetof(X264Context, x)
643 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
644 static const AVOption options[] = {
645  { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
646  { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
647  { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
648  { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE},
649  {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
650  {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
651  {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
652  {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
653  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
654  { "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 },
655  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
656  { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
657  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
658  { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
659  { "autovariance", "Auto-variance AQ (experimental)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
660  { "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},
661  { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
662  { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
663  { "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 },
664  { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
665  { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
666  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
667  { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
668  { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
669  { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
670  { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
671  { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
672  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
673  { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
674  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
675  { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
676  { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
677  { "mixed-refs", "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_INT, { .i64 = -1}, -1, 1, VE },
678  { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
679  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
680  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
681  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
682  { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
683  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
684  { "partitions", "A comma-separated list of partitions to consider. "
685  "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
686  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
687  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
688  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
689  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
690  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
691  { "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 },
692  { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
693  { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
694  "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
695  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
696  { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
697  { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
698  { "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 },
699  { NULL },
700 };
701 
702 static const AVClass x264_class = {
703  .class_name = "libx264",
704  .item_name = av_default_item_name,
705  .option = options,
706  .version = LIBAVUTIL_VERSION_INT,
707 };
708 
709 static const AVClass rgbclass = {
710  .class_name = "libx264rgb",
711  .item_name = av_default_item_name,
712  .option = options,
713  .version = LIBAVUTIL_VERSION_INT,
714 };
715 
716 static const AVCodecDefault x264_defaults[] = {
717  { "b", "0" },
718  { "bf", "-1" },
719  { "flags2", "0" },
720  { "g", "-1" },
721  { "i_qfactor", "-1" },
722  { "qmin", "-1" },
723  { "qmax", "-1" },
724  { "qdiff", "-1" },
725  { "qblur", "-1" },
726  { "qcomp", "-1" },
727 // { "rc_lookahead", "-1" },
728  { "refs", "-1" },
729  { "sc_threshold", "-1" },
730  { "trellis", "-1" },
731  { "nr", "-1" },
732  { "me_range", "-1" },
733  { "me_method", "-1" },
734  { "subq", "-1" },
735  { "b_strategy", "-1" },
736  { "keyint_min", "-1" },
737  { "coder", "-1" },
738  { "cmp", "-1" },
739  { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
740  { "thread_type", "0" },
741  { "flags", "+cgop" },
742  { "rc_init_occupancy","-1" },
743  { NULL },
744 };
745 
747  .name = "libx264",
748  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
749  .type = AVMEDIA_TYPE_VIDEO,
750  .id = AV_CODEC_ID_H264,
751  .priv_data_size = sizeof(X264Context),
752  .init = X264_init,
753  .encode2 = X264_frame,
754  .close = X264_close,
755  .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
756  .priv_class = &x264_class,
757  .defaults = x264_defaults,
758  .init_static_data = X264_init_static,
759 };
760 
762  .name = "libx264rgb",
763  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
764  .type = AVMEDIA_TYPE_VIDEO,
765  .id = AV_CODEC_ID_H264,
766  .priv_data_size = sizeof(X264Context),
767  .init = X264_init,
768  .encode2 = X264_frame,
769  .close = X264_close,
770  .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
771  .priv_class = &rgbclass,
772  .defaults = x264_defaults,
773  .pix_fmts = pix_fmts_8bit_rgb,
774 };
static int convert_pix_fmt(enum AVPixelFormat pix_fmt)
Definition: libx264.c:257
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1500
const char const char void * val
Definition: avisynth_c.h:671
const char * s
Definition: avisynth_c.h:668
static int avfmt2_num_planes(int avfmt)
Definition: libx264.c:139
char * partitions
Definition: libx264.c:77
char * key
Definition: dict.h:81
int size
This structure describes decoded (raw) audio or video data.
Definition: frame.h:96
int dct8x8
Definition: libx264.c:71
AVOption.
Definition: opt.h:253
#define CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:704
const char * fmt
Definition: avisynth_c.h:669
AVCodec ff_libx264_encoder
Definition: libx264.c:746
float qblur
amount of qscale smoothing over time (0.0-1.0)
Definition: avcodec.h:2152
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: avcodec.h:4153
#define LIBAVUTIL_VERSION_INT
Definition: avcodec.h:820
char * av_strdup(const char *s) av_malloc_attrib
Duplicate the string s.
Definition: mem.c:256
#define CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:703
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
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:1397
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2250
#define FF_PROFILE_H264_BASELINE
Definition: avcodec.h:2709
AVDictionaryEntry * av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:39
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: avcodec.h:4536
planar YUV 4:2:2, 16bpp, (1 Cr &amp; Cb sample per 2x1 Y samples)
Definition: avcodec.h:4538
int num
numerator
Definition: rational.h:44
static enum AVPixelFormat pix_fmts_8bit_rgb[]
Definition: libx264.c:624
enhanced predictive zonal search
Definition: avcodec.h:599
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:1517
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1342
int bluray_compat
Definition: libx264.c:67
int rtp_payload_size
Definition: avcodec.h:2347
char * wpredp
Definition: libx264.c:53
static void X264_log(void *p, int level, const char *fmt, va_list args)
Definition: libx264.c:85
Pixel format.
Definition: avcodec.h:4533
int profile
profile
Definition: avcodec.h:2678
AVCodec.
Definition: avcodec.h:2922
#define av_cold
Definition: avcodec.h:653
static av_cold int X264_init(AVCodecContext *avctx)
Definition: libx264.c:291
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1254
int scenechange_threshold
scene change detection threshold 0 is default, larger means fewer detected scene changes.
Definition: avcodec.h:1690
Predicted.
Definition: avcodec.h:2305
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1265
void av_freep(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
Definition: mem.c:234
x264_param_t params
Definition: libx264.c:42
char * x264opts
Definition: libx264.c:54
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: avcodec.h:4537
#define CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:707
static const AVClass rgbclass
Definition: libx264.c:709
const char * av_default_item_name(void *ctx)
Return the context name.
Definition: log.c:145
uint8_t
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:55
int me_range
maximum motion estimation search range in subpel units If 0 then no limit.
Definition: avcodec.h:1626
#define CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:713
float b_quant_factor
qscale factor between IP and B-frames If &gt; 0 then the last P-frame quantizer will be used (q= lastp_q...
Definition: avcodec.h:1406
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:182
const char * name
Name of the codec implementation.
Definition: avcodec.h:2929
int me_cmp
motion estimation comparison function
Definition: avcodec.h:1524
int coder_type
coder type
Definition: avcodec.h:2262
int b_pyramid
Definition: libx264.c:69
x264_picture_t pic
Definition: libx264.c:44
enum AVPixelFormat pix_fmt
Definition: v4l.c:62
float cplxblur
Definition: libx264.c:76
char * stats
Definition: libx264.c:80
int intra_refresh
Definition: libx264.c:66
const OptionDef options[]
Definition: ffserver.c:4682
#define FF_CODER_TYPE_AC
Definition: avcodec.h:2253
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:2713
int rc_lookahead
Definition: libx264.c:62
hexagon based search
Definition: avcodec.h:601
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1113
static AVFrame * frame
Definition: demuxing.c:51
int chromaoffset
chroma qp offset from luma
Definition: avcodec.h:1798
#define CODEC_FLAG_LOOP_FILTER
loop filter
Definition: avcodec.h:717
static enum AVPixelFormat pix_fmts_10bit[]
Definition: libx264.c:617
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: avcodec.h:4147
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:1427
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
Definition: mem.c:219
#define 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:769
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_...
Definition: avcodec.h:4548
int qmax
maximum quantizer
Definition: avcodec.h:2166
char * profile
Definition: libx264.c:50
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:151
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition: avcodec.h:2608
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: avcodec.h:4168
int fastfirstpass
Definition: libx264.c:52
static const AVClass x264_class
Definition: libx264.c:702
void av_dict_free(AVDictionary **m)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:162
int flags
CODEC_FLAG_*.
Definition: avcodec.h:1234
int rc_max_rate
maximum bitrate
Definition: avcodec.h:2213
int mbtree
Definition: libx264.c:74
float i_quant_factor
qscale factor between P and I-frames If &gt; 0 then the last p frame quantizer will be used (q= lastp_q*...
Definition: avcodec.h:1443
char * deblock
Definition: libx264.c:75
transformed exhaustive search algorithm
Definition: avcodec.h:603
Libavcodec external API header.
AVPixelFormat
Pixel format.
Definition: pixfmt.h:66
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1069
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2191
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
common internal API header
char * psy_rd
Definition: libx264.c:60
int refs
number of reference frames
Definition: avcodec.h:1791
#define AV_PIX_FMT_NV20
Definition: avcodec.h:4987
static enum AVPixelFormat pix_fmts_9bit[]
Definition: libx264.c:612
#define PARSE_X264_OPT(name, var)
Definition: libx264.c:285
int bit_rate
the average bitrate
Definition: avcodec.h:1204
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:167
#define OPT_STR(opt, param)
Definition: libx264.c:243
ret
Definition: avfilter.c:961
int width
picture width / height.
Definition: avcodec.h:1314
int cqp
Definition: libx264.c:57
#define FF_PROFILE_H264_HIGH_10
Definition: avcodec.h:2714
void * av_malloc(size_t size) av_malloc_attrib 1(1)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:73
x264_t * enc
Definition: libx264.c:43
#define CODEC_CAP_AUTO_THREADS
Codec supports avctx-&gt;thread_count == 0 (auto).
Definition: avcodec.h:823
char * value
Definition: dict.h:82
int b_frame_strategy
Definition: avcodec.h:1412
int level
level
Definition: avcodec.h:2756
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:208
#define CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:711
int slice_max_size
Definition: libx264.c:79
int nal_hrd
Definition: libx264.c:81
int max_qdiff
maximum quantizer difference between frames
Definition: avcodec.h:2173
int weightp
Definition: libx264.c:63
char * x264_params
Definition: libx264.c:82
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2596
static enum AVPixelFormat pix_fmts_8bit[]
Definition: libx264.c:601
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_...
Definition: avcodec.h:4546
static const AVCodecDefault x264_defaults[]
Definition: libx264.c:716
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 to a dictionary.
Definition: dict.c:139
planar YUV 4:2:0, 12bpp, (1 Cr &amp; Cb sample per 2x2 Y samples)
Definition: avcodec.h:4534
#define AV_LOG_INFO
Standard information.
Definition: avcodec.h:4158
char * level
Definition: libx264.c:51
AVFrame out_pic
Definition: libx264.c:47
static av_cold int X264_close(AVCodecContext *avctx)
Definition: libx264.c:230
#define FF_PROFILE_H264_HIGH_422
Definition: avcodec.h:2716
main external API structure.
Definition: avcodec.h:1146
static void close(AVCodecParserContext *s)
Definition: h264_parser.c:538
int qmin
minimum quantizer
Definition: avcodec.h:2159
#define AV_PIX_FMT_YUV444P9
Definition: avcodec.h:4947
int extradata_size
Definition: avcodec.h:1255
float crf
Definition: libx264.c:55
int aq_mode
Definition: libx264.c:58
int aud
Definition: libx264.c:73
#define AV_STRINGIFY(s)
Definition: avcodec.h:771
Describe the class of an AVClass context structure.
Definition: log.h:50
Bi-dir predicted.
Definition: avcodec.h:2306
AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2588
uint8_t * data
Definition: avcodec.h:1063
uint8_t * sei
Definition: libx264.c:45
#define AV_PIX_FMT_YUV420P9
Definition: avcodec.h:4945
void 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:281
int psy
Definition: libx264.c:61
planar YUV 4:4:4, 24bpp, (1 Cr &amp; Cb sample per 1x1 Y samples)
Definition: avcodec.h:4539
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:124
float qcompress
amount of qscale change between easy &amp; hard scenes (0.0-1.0)
Definition: avcodec.h:2151
int sei_size
Definition: libx264.c:46
#define CODEC_FLAG_CLOSED_GOP
Definition: avcodec.h:719
char * preset
Definition: libx264.c:48
Definition: h264.h:110
#define FF_CMP_CHROMA
Definition: avcodec.h:1558
interleaved chroma YUV 4:2:2, 16bpp, (1 Cr &amp; Cb sample per 2x1 Y samples)
Definition: avcodec.h:4679
void * priv_data
Definition: avcodec.h:1182
uint8_t level
Definition: svq3.c:146
int b_bias
Definition: libx264.c:68
int fast_pskip
Definition: libx264.c:72
int noise_reduction
noise reduction strength
Definition: avcodec.h:1697
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1333
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: avcodec.h:4559
static av_cold void X264_init_static(AVCodec *codec)
Definition: libx264.c:632
int mixed_refs
Definition: libx264.c:70
preset
Definition: vf_curves.c:46
char * tune
Definition: libx264.c:49
#define VE
Definition: libx264.c:643
int weightb
Definition: libx264.c:64
float aq_strength
Definition: libx264.c:59
common internal api header.
#define FF_PROFILE_H264_HIGH_444
Definition: avcodec.h:2718
#define AV_PIX_FMT_YUV444P10
Definition: avcodec.h:4950
#define FF_PROFILE_H264_MAIN
Definition: avcodec.h:2711
int den
denominator
Definition: rational.h:45
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:2943
int trellis
trellis RD quantization
Definition: avcodec.h:2318
int slices
Number of slices.
Definition: avcodec.h:1864
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:298
uneven multi-hexagon search
Definition: avcodec.h:602
AVCodec ff_libx264rgb_encoder
Definition: libx264.c:761
int ssim
Definition: libx264.c:65
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avcodec.h:2257
#define AV_PIX_FMT_YUV420P10
Definition: avcodec.h:4948
#define AVERROR(e)
int64_t dts
Decompression timestamp in AVStream-&gt;time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1062
float crf_max
Definition: libx264.c:56
#define AV_PIX_FMT_YUV422P10
Definition: avcodec.h:4949
#define OFFSET(x)
Definition: libx264.c:642
int direct_pred
Definition: libx264.c:78
#define AV_DICT_IGNORE_SUFFIX
Definition: dict.h:68
static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: libx264.c:158
static AVPacket pkt
Definition: demuxing.c:52
static const AVCodecDefault defaults[]
Definition: dcaenc.c:950
int me_method
Motion estimation algorithm used for video coding.
Definition: avcodec.h:1351
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_...
Definition: avcodec.h:4547
This structure stores compressed data.
Definition: avcodec.h:1040
int me_subpel_quality
subpel ME quality
Definition: avcodec.h:1600
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:107
int64_t pts
Presentation timestamp in AVStream-&gt;time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1056
int thread_type
Which multithreading methods to use.
Definition: avcodec.h:2606
int keyint_min
minimum GOP size
Definition: avcodec.h:1784
static int encode_nals(AVCodecContext *ctx, AVPacket *pkt, x264_nal_t *nals, int nnal)
Definition: libx264.c:101