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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 "avcodec.h"
29 #include "internal.h"
30 
31 #if defined(_MSC_VER)
32 #define X264_API_IMPORTS 1
33 #endif
34 
35 #include <x264.h>
36 #include <float.h>
37 #include <math.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 
42 typedef struct X264Context {
43  AVClass *class;
44  x264_param_t params;
45  x264_t *enc;
46  x264_picture_t pic;
48  int sei_size;
49  char *preset;
50  char *tune;
51  char *profile;
52  char *level;
54  char *wpredp;
55  char *x264opts;
56  float crf;
57  float crf_max;
58  int cqp;
59  int aq_mode;
60  float aq_strength;
61  char *psy_rd;
62  int psy;
64  int weightp;
65  int weightb;
66  int ssim;
69  int b_bias;
70  int b_pyramid;
72  int dct8x8;
74  int aud;
75  int mbtree;
76  char *deblock;
77  float cplxblur;
78  char *partitions;
81  char *stats;
82  int nal_hrd;
86  char *x264_params;
87 } X264Context;
88 
89 static void X264_log(void *p, int level, const char *fmt, va_list args)
90 {
91  static const int level_map[] = {
92  [X264_LOG_ERROR] = AV_LOG_ERROR,
93  [X264_LOG_WARNING] = AV_LOG_WARNING,
94  [X264_LOG_INFO] = AV_LOG_INFO,
95  [X264_LOG_DEBUG] = AV_LOG_DEBUG
96  };
97 
98  if (level < 0 || level > X264_LOG_DEBUG)
99  return;
100 
101  av_vlog(p, level_map[level], fmt, args);
102 }
103 
104 
106  const x264_nal_t *nals, int nnal)
107 {
108  X264Context *x4 = ctx->priv_data;
109  uint8_t *p;
110  int i, size = x4->sei_size, ret;
111 
112  if (!nnal)
113  return 0;
114 
115  for (i = 0; i < nnal; i++)
116  size += nals[i].i_payload;
117 
118  if ((ret = ff_alloc_packet2(ctx, pkt, size, 0)) < 0)
119  return ret;
120 
121  p = pkt->data;
122 
123  /* Write the SEI as part of the first frame. */
124  if (x4->sei_size > 0 && nnal > 0) {
125  if (x4->sei_size > size) {
126  av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
127  return -1;
128  }
129  memcpy(p, x4->sei, x4->sei_size);
130  p += x4->sei_size;
131  x4->sei_size = 0;
132  av_freep(&x4->sei);
133  }
134 
135  for (i = 0; i < nnal; i++){
136  memcpy(p, nals[i].p_payload, nals[i].i_payload);
137  p += nals[i].i_payload;
138  }
139 
140  return 1;
141 }
142 
143 static int avfmt2_num_planes(int avfmt)
144 {
145  switch (avfmt) {
146  case AV_PIX_FMT_YUV420P:
147  case AV_PIX_FMT_YUVJ420P:
148  case AV_PIX_FMT_YUV420P9:
150  case AV_PIX_FMT_YUV444P:
151  return 3;
152 
153  case AV_PIX_FMT_BGR0:
154  case AV_PIX_FMT_BGR24:
155  case AV_PIX_FMT_RGB24:
156  return 1;
157 
158  default:
159  return 3;
160  }
161 }
162 
163 static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)
164 {
165  X264Context *x4 = ctx->priv_data;
166  AVFrameSideData *side_data;
167 
168 
169  if (x4->avcintra_class < 0) {
170  if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
171 
172  x4->params.b_tff = frame->top_field_first;
173  x264_encoder_reconfig(x4->enc, &x4->params);
174  }
175  if (x4->params.vui.i_sar_height*ctx->sample_aspect_ratio.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
176  x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
177  x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
178  x264_encoder_reconfig(x4->enc, &x4->params);
179  }
180 
181  if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
182  x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) {
183  x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;
184  x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000;
185  x264_encoder_reconfig(x4->enc, &x4->params);
186  }
187 
188  if (x4->params.rc.i_rc_method == X264_RC_ABR &&
189  x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
190  x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
191  x264_encoder_reconfig(x4->enc, &x4->params);
192  }
193 
194  if (x4->crf >= 0 &&
195  x4->params.rc.i_rc_method == X264_RC_CRF &&
196  x4->params.rc.f_rf_constant != x4->crf) {
197  x4->params.rc.f_rf_constant = x4->crf;
198  x264_encoder_reconfig(x4->enc, &x4->params);
199  }
200 
201  if (x4->params.rc.i_rc_method == X264_RC_CQP &&
202  x4->cqp >= 0 &&
203  x4->params.rc.i_qp_constant != x4->cqp) {
204  x4->params.rc.i_qp_constant = x4->cqp;
205  x264_encoder_reconfig(x4->enc, &x4->params);
206  }
207 
208  if (x4->crf_max >= 0 &&
209  x4->params.rc.f_rf_constant_max != x4->crf_max) {
210  x4->params.rc.f_rf_constant_max = x4->crf_max;
211  x264_encoder_reconfig(x4->enc, &x4->params);
212  }
213  }
214 
216  if (side_data) {
217  AVStereo3D *stereo = (AVStereo3D *)side_data->data;
218  int fpa_type;
219 
220  switch (stereo->type) {
222  fpa_type = 0;
223  break;
224  case AV_STEREO3D_COLUMNS:
225  fpa_type = 1;
226  break;
227  case AV_STEREO3D_LINES:
228  fpa_type = 2;
229  break;
231  fpa_type = 3;
232  break;
234  fpa_type = 4;
235  break;
237  fpa_type = 5;
238  break;
239  default:
240  fpa_type = -1;
241  break;
242  }
243 
244  if (fpa_type != x4->params.i_frame_packing) {
245  x4->params.i_frame_packing = fpa_type;
246  x264_encoder_reconfig(x4->enc, &x4->params);
247  }
248  }
249 }
250 
251 static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
252  int *got_packet)
253 {
254  X264Context *x4 = ctx->priv_data;
255  x264_nal_t *nal;
256  int nnal, i, ret;
257  x264_picture_t pic_out = {0};
258  int pict_type;
259 
260  x264_picture_init( &x4->pic );
261  x4->pic.img.i_csp = x4->params.i_csp;
262 #if X264_BUILD >= 153
263  if (x4->params.i_bitdepth > 8)
264 #else
265  if (x264_bit_depth > 8)
266 #endif
267  x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
268  x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
269 
270  if (frame) {
271  for (i = 0; i < x4->pic.img.i_plane; i++) {
272  x4->pic.img.plane[i] = frame->data[i];
273  x4->pic.img.i_stride[i] = frame->linesize[i];
274  }
275 
276  x4->pic.i_pts = frame->pts;
277  x4->pic.i_type =
278  frame->pict_type == AV_PICTURE_TYPE_I ?
279  (x4->forced_idr >= 0 ? X264_TYPE_IDR : X264_TYPE_KEYFRAME) :
280  frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P :
281  frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B :
282  X264_TYPE_AUTO;
283 
284  reconfig_encoder(ctx, frame);
285  }
286  do {
287  if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
288  return AVERROR_EXTERNAL;
289 
290  ret = encode_nals(ctx, pkt, nal, nnal);
291  if (ret < 0)
292  return ret;
293  } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
294 
295  pkt->pts = pic_out.i_pts;
296  pkt->dts = pic_out.i_dts;
297 
298 
299  switch (pic_out.i_type) {
300  case X264_TYPE_IDR:
301  case X264_TYPE_I:
302  pict_type = AV_PICTURE_TYPE_I;
303  break;
304  case X264_TYPE_P:
305  pict_type = AV_PICTURE_TYPE_P;
306  break;
307  case X264_TYPE_B:
308  case X264_TYPE_BREF:
309  pict_type = AV_PICTURE_TYPE_B;
310  break;
311  default:
312  pict_type = AV_PICTURE_TYPE_NONE;
313  }
314 #if FF_API_CODED_FRAME
316  ctx->coded_frame->pict_type = pict_type;
318 #endif
319 
320  pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
321  if (ret) {
322  ff_side_data_set_encoder_stats(pkt, (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA, NULL, 0, pict_type);
323 
324 #if FF_API_CODED_FRAME
326  ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
328 #endif
329  }
330 
331  *got_packet = ret;
332  return 0;
333 }
334 
336 {
337  X264Context *x4 = avctx->priv_data;
338 
339  av_freep(&avctx->extradata);
340  av_freep(&x4->sei);
341 
342  if (x4->enc) {
343  x264_encoder_close(x4->enc);
344  x4->enc = NULL;
345  }
346 
347  return 0;
348 }
349 
350 #define OPT_STR(opt, param) \
351  do { \
352  int ret; \
353  if (param && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
354  if(ret == X264_PARAM_BAD_NAME) \
355  av_log(avctx, AV_LOG_ERROR, \
356  "bad option '%s': '%s'\n", opt, param); \
357  else \
358  av_log(avctx, AV_LOG_ERROR, \
359  "bad value for '%s': '%s'\n", opt, param); \
360  return -1; \
361  } \
362  } while (0)
363 
365 {
366  switch (pix_fmt) {
367  case AV_PIX_FMT_YUV420P:
368  case AV_PIX_FMT_YUVJ420P:
369  case AV_PIX_FMT_YUV420P9:
370  case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
371  case AV_PIX_FMT_YUV422P:
372  case AV_PIX_FMT_YUVJ422P:
373  case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
374  case AV_PIX_FMT_YUV444P:
375  case AV_PIX_FMT_YUVJ444P:
376  case AV_PIX_FMT_YUV444P9:
377  case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
378 #ifdef X264_CSP_BGR
379  case AV_PIX_FMT_BGR0:
380  return X264_CSP_BGRA;
381  case AV_PIX_FMT_BGR24:
382  return X264_CSP_BGR;
383 
384  case AV_PIX_FMT_RGB24:
385  return X264_CSP_RGB;
386 #endif
387  case AV_PIX_FMT_NV12: return X264_CSP_NV12;
388  case AV_PIX_FMT_NV16:
389  case AV_PIX_FMT_NV20: return X264_CSP_NV16;
390 #ifdef X264_CSP_NV21
391  case AV_PIX_FMT_NV21: return X264_CSP_NV21;
392 #endif
393  };
394  return 0;
395 }
396 
397 #define PARSE_X264_OPT(name, var)\
398  if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
399  av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
400  return AVERROR(EINVAL);\
401  }
402 
403 static av_cold int X264_init(AVCodecContext *avctx)
404 {
405  X264Context *x4 = avctx->priv_data;
406  int sw,sh;
407 
408  if (avctx->global_quality > 0)
409  av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
410 
411 #if CONFIG_LIBX262_ENCODER
412  if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
413  x4->params.b_mpeg2 = 1;
414  x264_param_default_mpeg2(&x4->params);
415  } else
416 #endif
417  x264_param_default(&x4->params);
418 
419  x4->params.b_deblocking_filter = avctx->flags & AV_CODEC_FLAG_LOOP_FILTER;
420 
421  if (x4->preset || x4->tune)
422  if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
423  int i;
424  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
425  av_log(avctx, AV_LOG_INFO, "Possible presets:");
426  for (i = 0; x264_preset_names[i]; i++)
427  av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
428  av_log(avctx, AV_LOG_INFO, "\n");
429  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
430  for (i = 0; x264_tune_names[i]; i++)
431  av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
432  av_log(avctx, AV_LOG_INFO, "\n");
433  return AVERROR(EINVAL);
434  }
435 
436  if (avctx->level > 0)
437  x4->params.i_level_idc = avctx->level;
438 
439  x4->params.pf_log = X264_log;
440  x4->params.p_log_private = avctx;
441  x4->params.i_log_level = X264_LOG_DEBUG;
442  x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
443 #if X264_BUILD >= 153
444  x4->params.i_bitdepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth_minus1 + 1;
445 #endif
446 
447  OPT_STR("weightp", x4->wpredp);
448 
449  if (avctx->bit_rate) {
450  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
451  x4->params.rc.i_rc_method = X264_RC_ABR;
452  }
453  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
454  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
455  x4->params.rc.b_stat_write = avctx->flags & AV_CODEC_FLAG_PASS1;
456  if (avctx->flags & AV_CODEC_FLAG_PASS2) {
457  x4->params.rc.b_stat_read = 1;
458  } else {
459  if (x4->crf >= 0) {
460  x4->params.rc.i_rc_method = X264_RC_CRF;
461  x4->params.rc.f_rf_constant = x4->crf;
462  } else if (x4->cqp >= 0) {
463  x4->params.rc.i_rc_method = X264_RC_CQP;
464  x4->params.rc.i_qp_constant = x4->cqp;
465  }
466 
467  if (x4->crf_max >= 0)
468  x4->params.rc.f_rf_constant_max = x4->crf_max;
469  }
470 
471  if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
472  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
473  x4->params.rc.f_vbv_buffer_init =
474  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
475  }
476 
477  OPT_STR("level", x4->level);
478 
479  if (avctx->i_quant_factor > 0)
480  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
481  if (avctx->b_quant_factor > 0)
482  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
483  if (avctx->chromaoffset)
484  x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
485 
486  if (avctx->gop_size >= 0)
487  x4->params.i_keyint_max = avctx->gop_size;
488  if (avctx->max_b_frames >= 0)
489  x4->params.i_bframe = avctx->max_b_frames;
490  if (avctx->scenechange_threshold >= 0)
491  x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
492  if (avctx->qmin >= 0)
493  x4->params.rc.i_qp_min = avctx->qmin;
494  if (avctx->qmax >= 0)
495  x4->params.rc.i_qp_max = avctx->qmax;
496  if (avctx->max_qdiff >= 0)
497  x4->params.rc.i_qp_step = avctx->max_qdiff;
498  if (avctx->qblur >= 0)
499  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
500  if (avctx->qcompress >= 0)
501  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
502  if (avctx->refs >= 0)
503  x4->params.i_frame_reference = avctx->refs;
504  else if (x4->level) {
505  int i;
506  int mbn = FF_CEIL_RSHIFT(avctx->width, 4) * FF_CEIL_RSHIFT(avctx->height, 4);
507  int level_id = -1;
508  char *tail;
509  int scale = X264_BUILD < 129 ? 384 : 1;
510 
511  if (!strcmp(x4->level, "1b")) {
512  level_id = 9;
513  } else if (strlen(x4->level) <= 3){
514  level_id = av_strtod(x4->level, &tail) * 10 + 0.5;
515  if (*tail)
516  level_id = -1;
517  }
518  if (level_id <= 0)
519  av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");
520 
521  for (i = 0; i<x264_levels[i].level_idc; i++)
522  if (x264_levels[i].level_idc == level_id)
523  x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
524  }
525 
526  if (avctx->trellis >= 0)
527  x4->params.analyse.i_trellis = avctx->trellis;
528  if (avctx->me_range >= 0)
529  x4->params.analyse.i_me_range = avctx->me_range;
530  if (avctx->noise_reduction >= 0)
531  x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
532  if (avctx->me_subpel_quality >= 0)
533  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
534  if (avctx->b_frame_strategy >= 0)
535  x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
536  if (avctx->keyint_min >= 0)
537  x4->params.i_keyint_min = avctx->keyint_min;
538  if (avctx->coder_type >= 0)
539  x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
540  if (avctx->me_cmp >= 0)
541  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
542 
543  if (x4->aq_mode >= 0)
544  x4->params.rc.i_aq_mode = x4->aq_mode;
545  if (x4->aq_strength >= 0)
546  x4->params.rc.f_aq_strength = x4->aq_strength;
547  PARSE_X264_OPT("psy-rd", psy_rd);
548  PARSE_X264_OPT("deblock", deblock);
549  PARSE_X264_OPT("partitions", partitions);
550  PARSE_X264_OPT("stats", stats);
551  if (x4->psy >= 0)
552  x4->params.analyse.b_psy = x4->psy;
553  if (x4->rc_lookahead >= 0)
554  x4->params.rc.i_lookahead = x4->rc_lookahead;
555  if (x4->weightp >= 0)
556  x4->params.analyse.i_weighted_pred = x4->weightp;
557  if (x4->weightb >= 0)
558  x4->params.analyse.b_weighted_bipred = x4->weightb;
559  if (x4->cplxblur >= 0)
560  x4->params.rc.f_complexity_blur = x4->cplxblur;
561 
562  if (x4->ssim >= 0)
563  x4->params.analyse.b_ssim = x4->ssim;
564  if (x4->intra_refresh >= 0)
565  x4->params.b_intra_refresh = x4->intra_refresh;
566  if (x4->bluray_compat >= 0) {
567  x4->params.b_bluray_compat = x4->bluray_compat;
568  x4->params.b_vfr_input = 0;
569  }
570  if (x4->avcintra_class >= 0)
571 #if X264_BUILD >= 142
572  x4->params.i_avcintra_class = x4->avcintra_class;
573 #else
574  av_log(avctx, AV_LOG_ERROR,
575  "x264 too old for AVC Intra, at least version 142 needed\n");
576 #endif
577  if (x4->b_bias != INT_MIN)
578  x4->params.i_bframe_bias = x4->b_bias;
579  if (x4->b_pyramid >= 0)
580  x4->params.i_bframe_pyramid = x4->b_pyramid;
581  if (x4->mixed_refs >= 0)
582  x4->params.analyse.b_mixed_references = x4->mixed_refs;
583  if (x4->dct8x8 >= 0)
584  x4->params.analyse.b_transform_8x8 = x4->dct8x8;
585  if (x4->fast_pskip >= 0)
586  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
587  if (x4->aud >= 0)
588  x4->params.b_aud = x4->aud;
589  if (x4->mbtree >= 0)
590  x4->params.rc.b_mb_tree = x4->mbtree;
591  if (x4->direct_pred >= 0)
592  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
593 
594  if (x4->slice_max_size >= 0)
595  x4->params.i_slice_max_size = x4->slice_max_size;
596  else {
597  /*
598  * Allow x264 to be instructed through AVCodecContext about the maximum
599  * size of the RTP payload. For example, this enables the production of
600  * payload suitable for the H.264 RTP packetization-mode 0 i.e. single
601  * NAL unit per RTP packet.
602  */
603  if (avctx->rtp_payload_size)
604  x4->params.i_slice_max_size = avctx->rtp_payload_size;
605  }
606 
607  if (x4->fastfirstpass)
608  x264_param_apply_fastfirstpass(&x4->params);
609 
610  /* Allow specifying the x264 profile through AVCodecContext. */
611  if (!x4->profile)
612  switch (avctx->profile) {
614  x4->profile = av_strdup("baseline");
615  break;
617  x4->profile = av_strdup("high");
618  break;
620  x4->profile = av_strdup("high10");
621  break;
623  x4->profile = av_strdup("high422");
624  break;
626  x4->profile = av_strdup("high444");
627  break;
629  x4->profile = av_strdup("main");
630  break;
631  default:
632  break;
633  }
634 
635  if (x4->nal_hrd >= 0)
636  x4->params.i_nal_hrd = x4->nal_hrd;
637 
638  if (x4->motion_est >= 0) {
639  x4->params.analyse.i_me_method = x4->motion_est;
640 #if FF_API_MOTION_EST
642  } else {
643  if (avctx->me_method == ME_EPZS)
644  x4->params.analyse.i_me_method = X264_ME_DIA;
645  else if (avctx->me_method == ME_HEX)
646  x4->params.analyse.i_me_method = X264_ME_HEX;
647  else if (avctx->me_method == ME_UMH)
648  x4->params.analyse.i_me_method = X264_ME_UMH;
649  else if (avctx->me_method == ME_FULL)
650  x4->params.analyse.i_me_method = X264_ME_ESA;
651  else if (avctx->me_method == ME_TESA)
652  x4->params.analyse.i_me_method = X264_ME_TESA;
654 #endif
655  }
656 
657  if (x4->profile)
658  if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
659  int i;
660  av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
661  av_log(avctx, AV_LOG_INFO, "Possible profiles:");
662  for (i = 0; x264_profile_names[i]; i++)
663  av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
664  av_log(avctx, AV_LOG_INFO, "\n");
665  return AVERROR(EINVAL);
666  }
667 
668  x4->params.i_width = avctx->width;
669  x4->params.i_height = avctx->height;
670  av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
671  x4->params.vui.i_sar_width = sw;
672  x4->params.vui.i_sar_height = sh;
673  x4->params.i_timebase_den = avctx->time_base.den;
674  x4->params.i_timebase_num = avctx->time_base.num;
675  x4->params.i_fps_num = avctx->time_base.den;
676  x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
677 
678  x4->params.analyse.b_psnr = avctx->flags & AV_CODEC_FLAG_PSNR;
679 
680  x4->params.i_threads = avctx->thread_count;
681  if (avctx->thread_type)
682  x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
683 
684  x4->params.b_interlaced = avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT;
685 
686  x4->params.b_open_gop = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
687 
688  x4->params.i_slice_count = avctx->slices;
689 
690  x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
691  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
692  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
693  avctx->color_range == AVCOL_RANGE_JPEG;
694 
695  if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
696  x4->params.vui.i_colmatrix = avctx->colorspace;
698  x4->params.vui.i_colorprim = avctx->color_primaries;
699  if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
700  x4->params.vui.i_transfer = avctx->color_trc;
701 
702  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
703  x4->params.b_repeat_headers = 0;
704 
705  if(x4->x264opts){
706  const char *p= x4->x264opts;
707  while(p){
708  char param[4096]={0}, val[4096]={0};
709  if(sscanf(p, "%4095[^:=]=%4095[^:]", param, val) == 1){
710  OPT_STR(param, "1");
711  }else
712  OPT_STR(param, val);
713  p= strchr(p, ':');
714  p+=!!p;
715  }
716  }
717 
718  if (x4->x264_params) {
719  AVDictionary *dict = NULL;
720  AVDictionaryEntry *en = NULL;
721 
722  if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
723  while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
724  if (x264_param_parse(&x4->params, en->key, en->value) < 0)
725  av_log(avctx, AV_LOG_WARNING,
726  "Error parsing option '%s = %s'.\n",
727  en->key, en->value);
728  }
729 
730  av_dict_free(&dict);
731  }
732  }
733 
734  // update AVCodecContext with x264 parameters
735  avctx->has_b_frames = x4->params.i_bframe ?
736  x4->params.i_bframe_pyramid ? 2 : 1 : 0;
737  if (avctx->max_b_frames < 0)
738  avctx->max_b_frames = 0;
739 
740  avctx->bit_rate = x4->params.rc.i_bitrate*1000;
741 
742  x4->enc = x264_encoder_open(&x4->params);
743  if (!x4->enc)
744  return AVERROR_EXTERNAL;
745 
746  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
747  x264_nal_t *nal;
748  uint8_t *p;
749  int nnal, s, i;
750 
751  s = x264_encoder_headers(x4->enc, &nal, &nnal);
752  avctx->extradata = p = av_malloc(s);
753  if (!p)
754  return AVERROR(ENOMEM);
755 
756  for (i = 0; i < nnal; i++) {
757  /* Don't put the SEI in extradata. */
758  if (nal[i].i_type == NAL_SEI) {
759  av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
760  x4->sei_size = nal[i].i_payload;
761  x4->sei = av_malloc(x4->sei_size);
762  if (!x4->sei)
763  return AVERROR(ENOMEM);
764  memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
765  continue;
766  }
767  memcpy(p, nal[i].p_payload, nal[i].i_payload);
768  p += nal[i].i_payload;
769  }
770  avctx->extradata_size = p - avctx->extradata;
771  }
772 
773  return 0;
774 }
775 
776 static const enum AVPixelFormat pix_fmts_8bit[] = {
785 #ifdef X264_CSP_NV21
787 #endif
789 };
790 static const enum AVPixelFormat pix_fmts_9bit[] = {
794 };
795 static const enum AVPixelFormat pix_fmts_10bit[] = {
801 };
802 static const enum AVPixelFormat pix_fmts_all[] = {
811 #ifdef X264_CSP_NV21
813 #endif
819 };
820 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
821 #ifdef X264_CSP_BGR
825 #endif
827 };
828 
829 static av_cold void X264_init_static(AVCodec *codec)
830 {
831 #if X264_BUILD < 153
832  if (x264_bit_depth == 8)
833  codec->pix_fmts = pix_fmts_8bit;
834  else if (x264_bit_depth == 9)
835  codec->pix_fmts = pix_fmts_9bit;
836  else if (x264_bit_depth == 10)
837  codec->pix_fmts = pix_fmts_10bit;
838 #else
839  codec->pix_fmts = pix_fmts_all;
840 #endif
841 }
842 
843 #define OFFSET(x) offsetof(X264Context, x)
844 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
845 static const AVOption options[] = {
846  { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
847  { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
848  { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
849  { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE},
850  {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
851  {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
852  {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
853  {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
854  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
855  { "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 },
856  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
857  { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
858  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
859  { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
860  { "autovariance", "Auto-variance AQ", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
861 #if X264_BUILD >= 144
862  { "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" },
863 #endif
864  { "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},
865  { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
866  { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
867  { "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 },
868  { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
869  { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
870  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
871  { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
872  { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
873  { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
874  { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
875  { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
876  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
877  { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
878  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
879  { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
880  { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
881  { "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 },
882  { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
883  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
884  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
885  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
886  { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
887  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
888  { "partitions", "A comma-separated list of partitions to consider. "
889  "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
890  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
891  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
892  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
893  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
894  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
895  { "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 },
896  { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
897  { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
898  "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
899  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
900  { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
901  { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
902  { "avcintra-class","AVC-Intra class 50/100/200", OFFSET(avcintra_class),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 200 , VE},
903  { "motion-est", "Set motion estimation method", OFFSET(motion_est), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, X264_ME_TESA, VE, "motion-est"},
904  { "dia", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_DIA }, INT_MIN, INT_MAX, VE, "motion-est" },
905  { "hex", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_HEX }, INT_MIN, INT_MAX, VE, "motion-est" },
906  { "umh", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_UMH }, INT_MIN, INT_MAX, VE, "motion-est" },
907  { "esa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_ESA }, INT_MIN, INT_MAX, VE, "motion-est" },
908  { "tesa", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_ME_TESA }, INT_MIN, INT_MAX, VE, "motion-est" },
909  { "forced-idr", "If forcing keyframes, force them as IDR frames.", OFFSET(forced_idr), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
910  { "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 },
911  { NULL },
912 };
913 
914 static const AVCodecDefault x264_defaults[] = {
915  { "b", "0" },
916  { "bf", "-1" },
917  { "flags2", "0" },
918  { "g", "-1" },
919  { "i_qfactor", "-1" },
920  { "b_qfactor", "-1" },
921  { "qmin", "-1" },
922  { "qmax", "-1" },
923  { "qdiff", "-1" },
924  { "qblur", "-1" },
925  { "qcomp", "-1" },
926 // { "rc_lookahead", "-1" },
927  { "refs", "-1" },
928  { "sc_threshold", "-1" },
929  { "trellis", "-1" },
930  { "nr", "-1" },
931  { "me_range", "-1" },
932 #if FF_API_MOTION_EST
933  { "me_method", "-1" },
934 #endif
935  { "subq", "-1" },
936  { "b_strategy", "-1" },
937  { "keyint_min", "-1" },
938  { "coder", "-1" },
939  { "cmp", "-1" },
940  { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
941  { "thread_type", "0" },
942  { "flags", "+cgop" },
943  { "rc_init_occupancy","-1" },
944  { NULL },
945 };
946 
947 #if CONFIG_LIBX264_ENCODER
948 static const AVClass x264_class = {
949  .class_name = "libx264",
950  .item_name = av_default_item_name,
951  .option = options,
952  .version = LIBAVUTIL_VERSION_INT,
953 };
954 
955 static const AVClass rgbclass = {
956  .class_name = "libx264rgb",
957  .item_name = av_default_item_name,
958  .option = options,
959  .version = LIBAVUTIL_VERSION_INT,
960 };
961 
962 AVCodec ff_libx264_encoder = {
963  .name = "libx264",
964  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
965  .type = AVMEDIA_TYPE_VIDEO,
966  .id = AV_CODEC_ID_H264,
967  .priv_data_size = sizeof(X264Context),
968  .init = X264_init,
969  .encode2 = X264_frame,
970  .close = X264_close,
972  .priv_class = &x264_class,
973  .defaults = x264_defaults,
975  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
977 };
978 
979 AVCodec ff_libx264rgb_encoder = {
980  .name = "libx264rgb",
981  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
982  .type = AVMEDIA_TYPE_VIDEO,
983  .id = AV_CODEC_ID_H264,
984  .priv_data_size = sizeof(X264Context),
985  .init = X264_init,
986  .encode2 = X264_frame,
987  .close = X264_close,
989  .priv_class = &rgbclass,
990  .defaults = x264_defaults,
992 };
993 #endif
994 
995 #if CONFIG_LIBX262_ENCODER
996 static const AVClass X262_class = {
997  .class_name = "libx262",
998  .item_name = av_default_item_name,
999  .option = options,
1000  .version = LIBAVUTIL_VERSION_INT,
1001 };
1002 
1003 AVCodec ff_libx262_encoder = {
1004  .name = "libx262",
1005  .long_name = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),
1006  .type = AVMEDIA_TYPE_VIDEO,
1007  .id = AV_CODEC_ID_MPEG2VIDEO,
1008  .priv_data_size = sizeof(X264Context),
1009  .init = X264_init,
1010  .encode2 = X264_frame,
1011  .close = X264_close,
1013  .priv_class = &X262_class,
1014  .defaults = x264_defaults,
1016  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
1018 };
1019 #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
static int convert_pix_fmt(enum AVPixelFormat pix_fmt)
Definition: libx264.c:364
#define FF_PROFILE_H264_HIGH_10
Definition: avcodec.h:3162
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:634
const char * s
Definition: avisynth_c.h:631
static enum AVPixelFormat pix_fmt
Views are packed per line, as if interlaced.
Definition: stereo3d.h:97
static int avfmt2_num_planes(int avfmt)
Definition: libx264.c:143
char * partitions
Definition: libx264.c:78
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2129
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
int dct8x8
Definition: libx264.c:72
AVOption.
Definition: opt.h:255
int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
Definition: avpacket.c:618
Views are alternated temporally.
Definition: stereo3d.h:66
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:776
#define AV_CODEC_FLAG_LOOP_FILTER
loop filter.
Definition: avcodec.h:759
#define FF_PROFILE_H264_HIGH_444
Definition: avcodec.h:3166
const char * fmt
Definition: avisynth_c.h:632
float qblur
amount of qscale smoothing over time (0.0-1.0)
Definition: avcodec.h:2550
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:68
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:62
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:65
memory handling functions
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:1790
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2653
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2247
int num
numerator
Definition: rational.h:44
static enum AVPixelFormat pix_fmts_8bit_rgb[]
Definition: libx264.c:820
enhanced predictive zonal search
Definition: avcodec.h:668
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:1912
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1732
int bluray_compat
Definition: libx264.c:68
int rtp_payload_size
Definition: avcodec.h:2752
char * wpredp
Definition: libx264.c:54
static void X264_log(void *p, int level, const char *fmt, va_list args)
Definition: libx264.c:89
static AVPacket pkt
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:932
#define FF_PROFILE_H264_MAIN
Definition: avcodec.h:3159
int profile
profile
Definition: avcodec.h:3125
AVCodec.
Definition: avcodec.h:3482
Definition: h264.h:117
static av_cold int X264_init(AVCodecContext *avctx)
Definition: libx264.c:403
attribute_deprecated int me_method
This option does nothing.
Definition: avcodec.h:1739
int scenechange_threshold
scene change detection threshold 0 is default, larger means fewer detected scene changes.
Definition: avcodec.h:2089
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1641
Undefined.
Definition: avutil.h:265
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:626
x264_param_t params
Definition: libx264.c:44
char * x264opts
Definition: libx264.c:55
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:882
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:100
uint8_t
#define av_cold
Definition: attributes.h:74
#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:2024
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:1799
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:257
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1627
int me_cmp
motion estimation comparison function
Definition: avcodec.h:1919
static av_cold void init_static_data(void)
Definition: dsddec.c:82
static AVFrame * frame
Structure to hold side data for an AVFrame.
Definition: frame.h:134
#define FF_CMP_CHROMA
Definition: avcodec.h:1953
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:39
int coder_type
coder type
Definition: avcodec.h:2667
uint8_t * data
Definition: avcodec.h:1433
int b_pyramid
Definition: libx264.c:70
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:76
x264_picture_t pic
Definition: libx264.c:46
float cplxblur
Definition: libx264.c:77
ptrdiff_t size
Definition: opengl_enc.c:101
char * stats
Definition: libx264.c:81
static enum AVPixelFormat pix_fmts_all[]
Definition: libx264.c:802
int intra_refresh
Definition: libx264.c:67
#define AV_PIX_FMT_NV20
Definition: pixfmt.h:419
#define av_log(a,...)
int rc_lookahead
Definition: libx264.c:63
hexagon based search
Definition: avcodec.h:670
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1479
int chromaoffset
chroma qp offset from luma
Definition: avcodec.h:2195
uint16_t depth_minus1
Number of bits in the component minus 1.
Definition: pixdesc.h:57
static enum AVPixelFormat pix_fmts_10bit[]
Definition: libx264.c:795
#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:1822
int profile
Definition: mxfenc.c:1820
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
int qmax
maximum quantizer
Definition: avcodec.h:2564
char * profile
Definition: libx264.c:51
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:178
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int fastfirstpass
Definition: libx264.c:53
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:199
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1607
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:91
int rc_max_rate
maximum bitrate
Definition: avcodec.h:2614
int mbtree
Definition: libx264.c:75
const char * name
Name of the codec implementation.
Definition: avcodec.h:3489
float i_quant_factor
qscale factor between P and I-frames If > 0 then the last p frame quantizer will be used (q= lastp_q*...
Definition: avcodec.h:1838
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:383
char * deblock
Definition: libx264.c:76
transformed exhaustive search algorithm
Definition: avcodec.h:672
Libavcodec external API header.
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1439
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:67
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2591
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:61
as above, but U and V bytes are swapped
Definition: pixfmt.h:92
int refs
number of reference frames
Definition: avcodec.h:2188
int motion_est
Definition: libx264.c:84
static enum AVPixelFormat pix_fmts_9bit[]
Definition: libx264.c:790
#define PARSE_X264_OPT(name, var)
Definition: libx264.c:397
int bit_rate
the average bitrate
Definition: avcodec.h:1577
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3503
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:242
#define OPT_STR(opt, param)
Definition: libx264.c:350
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:75
int width
picture width / height.
Definition: avcodec.h:1691
int cqp
Definition: libx264.c:58
#define FF_CEIL_RSHIFT(a, b)
Definition: common.h:57
x264_t * enc
Definition: libx264.c:45
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:767
#define AV_CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:751
int b_frame_strategy
Definition: avcodec.h:1807
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2226
int level
level
Definition: avcodec.h:3214
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:283
int slice_max_size
Definition: libx264.c:80
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1650
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:66
int nal_hrd
Definition: libx264.c:82
int max_qdiff
maximum quantizer difference between frames
Definition: avcodec.h:2571
int weightp
Definition: libx264.c:64
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:379
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:107
char * x264_params
Definition: libx264.c:86
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:3043
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:540
static enum AVPixelFormat pix_fmts_8bit[]
Definition: libx264.c:776
static const AVCodecDefault x264_defaults[]
Definition: libx264.c:914
double av_strtod(const char *numstr, char **tail)
Parse the string in numstr and return its value as a double.
Definition: eval.c:93
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:176
int avcintra_class
Definition: libx264.c:83
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:52
static av_cold int X264_close(AVCodecContext *avctx)
Definition: libx264.c:335
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition: avcodec.h:3055
enum AVCodecID codec_id
Definition: avcodec.h:1529
char * av_strdup(const char *s)
Duplicate the string s.
Definition: mem.c:267
int forced_idr
Definition: libx264.c:85
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:199
main external API structure.
Definition: avcodec.h:1512
static const AVOption options[]
Definition: libx264.c:845
int qmin
minimum quantizer
Definition: avcodec.h:2557
uint8_t * data
Definition: frame.h:136
int extradata_size
Definition: avcodec.h:1628
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:380
float crf
Definition: libx264.c:56
int aq_mode
Definition: libx264.c:59
int aud
Definition: libx264.c:74
#define AV_STRINGIFY(s)
Definition: macros.h:36
Describe the class of an AVClass context structure.
Definition: log.h:67
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2240
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2233
uint8_t * sei
Definition: libx264.c:47
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:370
int psy
Definition: libx264.c:62
static int encode_nals(AVCodecContext *ctx, AVPacket *pkt, const x264_nal_t *nals, int nnal)
Definition: libx264.c:105
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:279
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:377
#define FF_CODER_TYPE_AC
Definition: avcodec.h:2656
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:1794
float qcompress
amount of qscale change between easy & hard scenes (0.0-1.0)
Definition: avcodec.h:2549
int sei_size
Definition: libx264.c:48
static void reconfig_encoder(AVCodecContext *ctx, const AVFrame *frame)
Definition: libx264.c:163
char * preset
Definition: libx264.c:49
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:245
Views are on top of each other.
Definition: stereo3d.h:55
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:1593
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:381
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:182
uint8_t level
Definition: svq3.c:150
int b_bias
Definition: libx264.c:69
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:784
int fast_pskip
Definition: libx264.c:73
int noise_reduction
noise reduction strength
Definition: avcodec.h:2096
Views are next to each other.
Definition: stereo3d.h:45
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1717
static av_cold void X264_init_static(AVCodec *codec)
Definition: libx264.c:829
int mixed_refs
Definition: libx264.c:71
preset
Definition: vf_curves.c:46
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:3161
char * tune
Definition: libx264.c:50
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:63
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:82
#define VE
Definition: libx264.c:844
int weightb
Definition: libx264.c:65
float aq_strength
Definition: libx264.c:60
common internal api header.
Bi-dir predicted.
Definition: avutil.h:268
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:77
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:3034
char * key
Definition: dict.h:87
int den
denominator
Definition: rational.h:45
interleaved chroma YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:227
int trellis
trellis RD quantization
Definition: avcodec.h:2723
#define AV_CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:755
int slices
Number of slices.
Definition: avcodec.h:2263
void * priv_data
Definition: avcodec.h:1554
char * value
Definition: dict.h:88
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:83
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:372
uneven multi-hexagon search
Definition: avcodec.h:671
#define FF_PROFILE_H264_BASELINE
Definition: avcodec.h:3157
Views are packed in a checkerboard-like structure per pixel.
Definition: stereo3d.h:76
Views are packed per column.
Definition: stereo3d.h:107
int ssim
Definition: libx264.c:66
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:219
#define FF_PROFILE_H264_HIGH_422
Definition: avcodec.h:3164
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1432
float crf_max
Definition: libx264.c:57
#define OFFSET(x)
Definition: libx264.c:843
int direct_pred
Definition: libx264.c:79
#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:72
static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: libx264.c:251
#define AV_CODEC_FLAG_CLOSED_GOP
Allow non spec compliant speedup tricks.
Definition: avcodec.h:801
static const AVCodecDefault defaults[]
Definition: dcaenc.c:954
Stereoscopic 3d metadata.
Definition: frame.h:63
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
This structure stores compressed data.
Definition: avcodec.h:1410
int me_subpel_quality
subpel ME quality
Definition: avcodec.h:1995
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1426
Predicted.
Definition: avutil.h:267
int thread_type
Which multithreading methods to use.
Definition: avcodec.h:3053
simple arithmetic expression evaluator
int keyint_min
minimum GOP size
Definition: avcodec.h:2181