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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;
84  char *x264_params;
85 } X264Context;
86 
87 static void X264_log(void *p, int level, const char *fmt, va_list args)
88 {
89  static const int level_map[] = {
90  [X264_LOG_ERROR] = AV_LOG_ERROR,
91  [X264_LOG_WARNING] = AV_LOG_WARNING,
92  [X264_LOG_INFO] = AV_LOG_INFO,
93  [X264_LOG_DEBUG] = AV_LOG_DEBUG
94  };
95 
96  if (level < 0 || level > X264_LOG_DEBUG)
97  return;
98 
99  av_vlog(p, level_map[level], fmt, args);
100 }
101 
102 
104  const x264_nal_t *nals, int nnal)
105 {
106  X264Context *x4 = ctx->priv_data;
107  uint8_t *p;
108  int i, size = x4->sei_size, ret;
109 
110  if (!nnal)
111  return 0;
112 
113  for (i = 0; i < nnal; i++)
114  size += nals[i].i_payload;
115 
116  if ((ret = ff_alloc_packet2(ctx, pkt, size)) < 0)
117  return ret;
118 
119  p = pkt->data;
120 
121  /* Write the SEI as part of the first frame. */
122  if (x4->sei_size > 0 && nnal > 0) {
123  if (x4->sei_size > size) {
124  av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n");
125  return -1;
126  }
127  memcpy(p, x4->sei, x4->sei_size);
128  p += x4->sei_size;
129  x4->sei_size = 0;
130  av_freep(&x4->sei);
131  }
132 
133  for (i = 0; i < nnal; i++){
134  memcpy(p, nals[i].p_payload, nals[i].i_payload);
135  p += nals[i].i_payload;
136  }
137 
138  return 1;
139 }
140 
141 static int avfmt2_num_planes(int avfmt)
142 {
143  switch (avfmt) {
144  case AV_PIX_FMT_YUV420P:
145  case AV_PIX_FMT_YUVJ420P:
146  case AV_PIX_FMT_YUV420P9:
148  case AV_PIX_FMT_YUV444P:
149  return 3;
150 
151  case AV_PIX_FMT_BGR0:
152  case AV_PIX_FMT_BGR24:
153  case AV_PIX_FMT_RGB24:
154  return 1;
155 
156  default:
157  return 3;
158  }
159 }
160 
161 static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
162  int *got_packet)
163 {
164  X264Context *x4 = ctx->priv_data;
165  x264_nal_t *nal;
166  int nnal, i, ret;
167  x264_picture_t pic_out = {0};
168  AVFrameSideData *side_data;
169 
170  x264_picture_init( &x4->pic );
171  x4->pic.img.i_csp = x4->params.i_csp;
172  if (x264_bit_depth > 8)
173  x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
174  x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt);
175 
176  if (frame) {
177  for (i = 0; i < x4->pic.img.i_plane; i++) {
178  x4->pic.img.plane[i] = frame->data[i];
179  x4->pic.img.i_stride[i] = frame->linesize[i];
180  }
181 
182  x4->pic.i_pts = frame->pts;
183  x4->pic.i_type =
184  frame->pict_type == AV_PICTURE_TYPE_I ? X264_TYPE_KEYFRAME :
185  frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P :
186  frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B :
187  X264_TYPE_AUTO;
188 
189  if (x4->avcintra_class < 0) {
190  if (x4->params.b_interlaced && x4->params.b_tff != frame->top_field_first) {
191  x4->params.b_tff = frame->top_field_first;
192  x264_encoder_reconfig(x4->enc, &x4->params);
193  }
194  if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den ||
195  x4->params.vui.i_sar_width != ctx->sample_aspect_ratio.num) {
196  x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
197  x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
198  x264_encoder_reconfig(x4->enc, &x4->params);
199  }
200 
201  if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
202  x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) {
203  x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;
204  x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000;
205  x264_encoder_reconfig(x4->enc, &x4->params);
206  }
207 
208  if (x4->params.rc.i_rc_method == X264_RC_ABR &&
209  x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
210  x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
211  x264_encoder_reconfig(x4->enc, &x4->params);
212  }
213 
214  if (x4->crf >= 0 &&
215  x4->params.rc.i_rc_method == X264_RC_CRF &&
216  x4->params.rc.f_rf_constant != x4->crf) {
217  x4->params.rc.f_rf_constant = x4->crf;
218  x264_encoder_reconfig(x4->enc, &x4->params);
219  }
220 
221  if (x4->params.rc.i_rc_method == X264_RC_CQP &&
222  x4->cqp >= 0 &&
223  x4->params.rc.i_qp_constant != x4->cqp) {
224  x4->params.rc.i_qp_constant = x4->cqp;
225  x264_encoder_reconfig(x4->enc, &x4->params);
226  }
227 
228  if (x4->crf_max >= 0 &&
229  x4->params.rc.f_rf_constant_max != x4->crf_max) {
230  x4->params.rc.f_rf_constant_max = x4->crf_max;
231  x264_encoder_reconfig(x4->enc, &x4->params);
232  }
233  }
234 
236  if (side_data) {
237  AVStereo3D *stereo = (AVStereo3D *)side_data->data;
238  int fpa_type;
239 
240  switch (stereo->type) {
242  fpa_type = 0;
243  break;
244  case AV_STEREO3D_COLUMNS:
245  fpa_type = 1;
246  break;
247  case AV_STEREO3D_LINES:
248  fpa_type = 2;
249  break;
251  fpa_type = 3;
252  break;
254  fpa_type = 4;
255  break;
257  fpa_type = 5;
258  break;
259  default:
260  fpa_type = -1;
261  break;
262  }
263 
264  if (fpa_type != x4->params.i_frame_packing) {
265  x4->params.i_frame_packing = fpa_type;
266  x264_encoder_reconfig(x4->enc, &x4->params);
267  }
268  }
269  }
270  do {
271  if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
272  return AVERROR_EXTERNAL;
273 
274  ret = encode_nals(ctx, pkt, nal, nnal);
275  if (ret < 0)
276  return ret;
277  } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
278 
279  pkt->pts = pic_out.i_pts;
280  pkt->dts = pic_out.i_dts;
281 
282  switch (pic_out.i_type) {
283  case X264_TYPE_IDR:
284  case X264_TYPE_I:
286  break;
287  case X264_TYPE_P:
289  break;
290  case X264_TYPE_B:
291  case X264_TYPE_BREF:
293  break;
294  }
295 
296  pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
297  if (ret)
298  ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
299 
300  *got_packet = ret;
301  return 0;
302 }
303 
305 {
306  X264Context *x4 = avctx->priv_data;
307 
308  av_freep(&avctx->extradata);
309  av_freep(&x4->sei);
310 
311  if (x4->enc) {
312  x264_encoder_close(x4->enc);
313  x4->enc = NULL;
314  }
315 
316  av_frame_free(&avctx->coded_frame);
317 
318  return 0;
319 }
320 
321 #define OPT_STR(opt, param) \
322  do { \
323  int ret; \
324  if (param && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
325  if(ret == X264_PARAM_BAD_NAME) \
326  av_log(avctx, AV_LOG_ERROR, \
327  "bad option '%s': '%s'\n", opt, param); \
328  else \
329  av_log(avctx, AV_LOG_ERROR, \
330  "bad value for '%s': '%s'\n", opt, param); \
331  return -1; \
332  } \
333  } while (0)
334 
336 {
337  switch (pix_fmt) {
338  case AV_PIX_FMT_YUV420P:
339  case AV_PIX_FMT_YUVJ420P:
340  case AV_PIX_FMT_YUV420P9:
341  case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
342  case AV_PIX_FMT_YUV422P:
343  case AV_PIX_FMT_YUVJ422P:
344  case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
345  case AV_PIX_FMT_YUV444P:
346  case AV_PIX_FMT_YUVJ444P:
347  case AV_PIX_FMT_YUV444P9:
348  case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
349 #ifdef X264_CSP_BGR
350  case AV_PIX_FMT_BGR0:
351  return X264_CSP_BGRA;
352  case AV_PIX_FMT_BGR24:
353  return X264_CSP_BGR;
354 
355  case AV_PIX_FMT_RGB24:
356  return X264_CSP_RGB;
357 #endif
358  case AV_PIX_FMT_NV12: return X264_CSP_NV12;
359  case AV_PIX_FMT_NV16:
360  case AV_PIX_FMT_NV20: return X264_CSP_NV16;
361  };
362  return 0;
363 }
364 
365 #define PARSE_X264_OPT(name, var)\
366  if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
367  av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
368  return AVERROR(EINVAL);\
369  }
370 
371 static av_cold int X264_init(AVCodecContext *avctx)
372 {
373  X264Context *x4 = avctx->priv_data;
374  int sw,sh;
375 
376  if (avctx->global_quality > 0)
377  av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
378 
379  x264_param_default(&x4->params);
380 
381  x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
382 
383  if (x4->preset || x4->tune)
384  if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
385  int i;
386  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
387  av_log(avctx, AV_LOG_INFO, "Possible presets:");
388  for (i = 0; x264_preset_names[i]; i++)
389  av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
390  av_log(avctx, AV_LOG_INFO, "\n");
391  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
392  for (i = 0; x264_tune_names[i]; i++)
393  av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
394  av_log(avctx, AV_LOG_INFO, "\n");
395  return AVERROR(EINVAL);
396  }
397 
398  if (avctx->level > 0)
399  x4->params.i_level_idc = avctx->level;
400 
401  x4->params.pf_log = X264_log;
402  x4->params.p_log_private = avctx;
403  x4->params.i_log_level = X264_LOG_DEBUG;
404  x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
405 
406  OPT_STR("weightp", x4->wpredp);
407 
408  if (avctx->bit_rate) {
409  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
410  x4->params.rc.i_rc_method = X264_RC_ABR;
411  }
412  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
413  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
414  x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;
415  if (avctx->flags & CODEC_FLAG_PASS2) {
416  x4->params.rc.b_stat_read = 1;
417  } else {
418  if (x4->crf >= 0) {
419  x4->params.rc.i_rc_method = X264_RC_CRF;
420  x4->params.rc.f_rf_constant = x4->crf;
421  } else if (x4->cqp >= 0) {
422  x4->params.rc.i_rc_method = X264_RC_CQP;
423  x4->params.rc.i_qp_constant = x4->cqp;
424  }
425 
426  if (x4->crf_max >= 0)
427  x4->params.rc.f_rf_constant_max = x4->crf_max;
428  }
429 
430  if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
431  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
432  x4->params.rc.f_vbv_buffer_init =
433  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
434  }
435 
436  OPT_STR("level", x4->level);
437 
438  if (avctx->i_quant_factor > 0)
439  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
440  if (avctx->b_quant_factor > 0)
441  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
442  if (avctx->chromaoffset)
443  x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
444 
445  if (avctx->me_method == ME_EPZS)
446  x4->params.analyse.i_me_method = X264_ME_DIA;
447  else if (avctx->me_method == ME_HEX)
448  x4->params.analyse.i_me_method = X264_ME_HEX;
449  else if (avctx->me_method == ME_UMH)
450  x4->params.analyse.i_me_method = X264_ME_UMH;
451  else if (avctx->me_method == ME_FULL)
452  x4->params.analyse.i_me_method = X264_ME_ESA;
453  else if (avctx->me_method == ME_TESA)
454  x4->params.analyse.i_me_method = X264_ME_TESA;
455 
456  if (avctx->gop_size >= 0)
457  x4->params.i_keyint_max = avctx->gop_size;
458  if (avctx->max_b_frames >= 0)
459  x4->params.i_bframe = avctx->max_b_frames;
460  if (avctx->scenechange_threshold >= 0)
461  x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
462  if (avctx->qmin >= 0)
463  x4->params.rc.i_qp_min = avctx->qmin;
464  if (avctx->qmax >= 0)
465  x4->params.rc.i_qp_max = avctx->qmax;
466  if (avctx->max_qdiff >= 0)
467  x4->params.rc.i_qp_step = avctx->max_qdiff;
468  if (avctx->qblur >= 0)
469  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
470  if (avctx->qcompress >= 0)
471  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
472  if (avctx->refs >= 0)
473  x4->params.i_frame_reference = avctx->refs;
474  else if (x4->level) {
475  int i;
476  int mbn = FF_CEIL_RSHIFT(avctx->width, 4) * FF_CEIL_RSHIFT(avctx->height, 4);
477  int level_id = -1;
478  char *tail;
479  int scale = X264_BUILD < 129 ? 384 : 1;
480 
481  if (!strcmp(x4->level, "1b")) {
482  level_id = 9;
483  } else if (strlen(x4->level) <= 3){
484  level_id = av_strtod(x4->level, &tail) * 10 + 0.5;
485  if (*tail)
486  level_id = -1;
487  }
488  if (level_id <= 0)
489  av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");
490 
491  for (i = 0; i<x264_levels[i].level_idc; i++)
492  if (x264_levels[i].level_idc == level_id)
493  x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
494  }
495 
496  if (avctx->trellis >= 0)
497  x4->params.analyse.i_trellis = avctx->trellis;
498  if (avctx->me_range >= 0)
499  x4->params.analyse.i_me_range = avctx->me_range;
500  if (avctx->noise_reduction >= 0)
501  x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
502  if (avctx->me_subpel_quality >= 0)
503  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
504  if (avctx->b_frame_strategy >= 0)
505  x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
506  if (avctx->keyint_min >= 0)
507  x4->params.i_keyint_min = avctx->keyint_min;
508  if (avctx->coder_type >= 0)
509  x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
510  if (avctx->me_cmp >= 0)
511  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
512 
513  if (x4->aq_mode >= 0)
514  x4->params.rc.i_aq_mode = x4->aq_mode;
515  if (x4->aq_strength >= 0)
516  x4->params.rc.f_aq_strength = x4->aq_strength;
517  PARSE_X264_OPT("psy-rd", psy_rd);
518  PARSE_X264_OPT("deblock", deblock);
519  PARSE_X264_OPT("partitions", partitions);
520  PARSE_X264_OPT("stats", stats);
521  if (x4->psy >= 0)
522  x4->params.analyse.b_psy = x4->psy;
523  if (x4->rc_lookahead >= 0)
524  x4->params.rc.i_lookahead = x4->rc_lookahead;
525  if (x4->weightp >= 0)
526  x4->params.analyse.i_weighted_pred = x4->weightp;
527  if (x4->weightb >= 0)
528  x4->params.analyse.b_weighted_bipred = x4->weightb;
529  if (x4->cplxblur >= 0)
530  x4->params.rc.f_complexity_blur = x4->cplxblur;
531 
532  if (x4->ssim >= 0)
533  x4->params.analyse.b_ssim = x4->ssim;
534  if (x4->intra_refresh >= 0)
535  x4->params.b_intra_refresh = x4->intra_refresh;
536  if (x4->bluray_compat >= 0) {
537  x4->params.b_bluray_compat = x4->bluray_compat;
538  x4->params.b_vfr_input = 0;
539  }
540  if (x4->avcintra_class >= 0)
541 #if X264_BUILD >= 142
542  x4->params.i_avcintra_class = x4->avcintra_class;
543 #else
544  av_log(avctx, AV_LOG_ERROR,
545  "x264 too old for AVC Intra, at least version 142 needed\n");
546 #endif
547  if (x4->b_bias != INT_MIN)
548  x4->params.i_bframe_bias = x4->b_bias;
549  if (x4->b_pyramid >= 0)
550  x4->params.i_bframe_pyramid = x4->b_pyramid;
551  if (x4->mixed_refs >= 0)
552  x4->params.analyse.b_mixed_references = x4->mixed_refs;
553  if (x4->dct8x8 >= 0)
554  x4->params.analyse.b_transform_8x8 = x4->dct8x8;
555  if (x4->fast_pskip >= 0)
556  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
557  if (x4->aud >= 0)
558  x4->params.b_aud = x4->aud;
559  if (x4->mbtree >= 0)
560  x4->params.rc.b_mb_tree = x4->mbtree;
561  if (x4->direct_pred >= 0)
562  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
563 
564  if (x4->slice_max_size >= 0)
565  x4->params.i_slice_max_size = x4->slice_max_size;
566  else {
567  /*
568  * Allow x264 to be instructed through AVCodecContext about the maximum
569  * size of the RTP payload. For example, this enables the production of
570  * payload suitable for the H.264 RTP packetization-mode 0 i.e. single
571  * NAL unit per RTP packet.
572  */
573  if (avctx->rtp_payload_size)
574  x4->params.i_slice_max_size = avctx->rtp_payload_size;
575  }
576 
577  if (x4->fastfirstpass)
578  x264_param_apply_fastfirstpass(&x4->params);
579 
580  /* Allow specifying the x264 profile through AVCodecContext. */
581  if (!x4->profile)
582  switch (avctx->profile) {
584  x4->profile = av_strdup("baseline");
585  break;
587  x4->profile = av_strdup("high");
588  break;
590  x4->profile = av_strdup("high10");
591  break;
593  x4->profile = av_strdup("high422");
594  break;
596  x4->profile = av_strdup("high444");
597  break;
599  x4->profile = av_strdup("main");
600  break;
601  default:
602  break;
603  }
604 
605  if (x4->nal_hrd >= 0)
606  x4->params.i_nal_hrd = x4->nal_hrd;
607 
608  if (x4->profile)
609  if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
610  int i;
611  av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
612  av_log(avctx, AV_LOG_INFO, "Possible profiles:");
613  for (i = 0; x264_profile_names[i]; i++)
614  av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
615  av_log(avctx, AV_LOG_INFO, "\n");
616  return AVERROR(EINVAL);
617  }
618 
619  x4->params.i_width = avctx->width;
620  x4->params.i_height = avctx->height;
621  av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
622  x4->params.vui.i_sar_width = sw;
623  x4->params.vui.i_sar_height = sh;
624  x4->params.i_timebase_den = avctx->time_base.den;
625  x4->params.i_timebase_num = avctx->time_base.num;
626  x4->params.i_fps_num = avctx->time_base.den;
627  x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
628 
629  x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;
630 
631  x4->params.i_threads = avctx->thread_count;
632  if (avctx->thread_type)
633  x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
634 
635  x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT;
636 
637  x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP);
638 
639  x4->params.i_slice_count = avctx->slices;
640 
641  x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
642  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
643  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
644  avctx->color_range == AVCOL_RANGE_JPEG;
645 
646  if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
647  x4->params.vui.i_colmatrix = avctx->colorspace;
649  x4->params.vui.i_colorprim = avctx->color_primaries;
650  if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
651  x4->params.vui.i_transfer = avctx->color_trc;
652 
653  if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)
654  x4->params.b_repeat_headers = 0;
655 
656  if(x4->x264opts){
657  const char *p= x4->x264opts;
658  while(p){
659  char param[256]={0}, val[256]={0};
660  if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){
661  OPT_STR(param, "1");
662  }else
663  OPT_STR(param, val);
664  p= strchr(p, ':');
665  p+=!!p;
666  }
667  }
668 
669  if (x4->x264_params) {
670  AVDictionary *dict = NULL;
671  AVDictionaryEntry *en = NULL;
672 
673  if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
674  while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
675  if (x264_param_parse(&x4->params, en->key, en->value) < 0)
676  av_log(avctx, AV_LOG_WARNING,
677  "Error parsing option '%s = %s'.\n",
678  en->key, en->value);
679  }
680 
681  av_dict_free(&dict);
682  }
683  }
684 
685  // update AVCodecContext with x264 parameters
686  avctx->has_b_frames = x4->params.i_bframe ?
687  x4->params.i_bframe_pyramid ? 2 : 1 : 0;
688  if (avctx->max_b_frames < 0)
689  avctx->max_b_frames = 0;
690 
691  avctx->bit_rate = x4->params.rc.i_bitrate*1000;
692 
693  x4->enc = x264_encoder_open(&x4->params);
694  if (!x4->enc)
695  return AVERROR_EXTERNAL;
696 
697  avctx->coded_frame = av_frame_alloc();
698  if (!avctx->coded_frame)
699  return AVERROR(ENOMEM);
700 
701  if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
702  x264_nal_t *nal;
703  uint8_t *p;
704  int nnal, s, i;
705 
706  s = x264_encoder_headers(x4->enc, &nal, &nnal);
707  avctx->extradata = p = av_malloc(s);
708  if (!p)
709  return AVERROR(ENOMEM);
710 
711  for (i = 0; i < nnal; i++) {
712  /* Don't put the SEI in extradata. */
713  if (nal[i].i_type == NAL_SEI) {
714  av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
715  x4->sei_size = nal[i].i_payload;
716  x4->sei = av_malloc(x4->sei_size);
717  if (!x4->sei)
718  return AVERROR(ENOMEM);
719  memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
720  continue;
721  }
722  memcpy(p, nal[i].p_payload, nal[i].i_payload);
723  p += nal[i].i_payload;
724  }
725  avctx->extradata_size = p - avctx->extradata;
726  }
727 
728  return 0;
729 }
730 
731 static const enum AVPixelFormat pix_fmts_8bit[] = {
741 };
742 static const enum AVPixelFormat pix_fmts_9bit[] = {
746 };
747 static const enum AVPixelFormat pix_fmts_10bit[] = {
753 };
754 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
755 #ifdef X264_CSP_BGR
759 #endif
761 };
762 
763 static av_cold void X264_init_static(AVCodec *codec)
764 {
765  if (x264_bit_depth == 8)
766  codec->pix_fmts = pix_fmts_8bit;
767  else if (x264_bit_depth == 9)
768  codec->pix_fmts = pix_fmts_9bit;
769  else if (x264_bit_depth == 10)
770  codec->pix_fmts = pix_fmts_10bit;
771 }
772 
773 #define OFFSET(x) offsetof(X264Context, x)
774 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
775 static const AVOption options[] = {
776  { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
777  { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
778  { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
779  { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE},
780  {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
781  {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
782  {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
783  {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
784  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
785  { "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 },
786  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
787  { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
788  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
789  { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
790  { "autovariance", "Auto-variance AQ", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
791 #if X264_BUILD >= 144
792  { "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" },
793 #endif
794  { "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},
795  { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
796  { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
797  { "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 },
798  { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
799  { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
800  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
801  { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
802  { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
803  { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
804  { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
805  { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
806  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
807  { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
808  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
809  { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
810  { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
811  { "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 },
812  { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
813  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
814  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
815  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
816  { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
817  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
818  { "partitions", "A comma-separated list of partitions to consider. "
819  "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
820  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
821  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
822  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
823  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
824  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
825  { "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 },
826  { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
827  { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
828  "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
829  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
830  { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
831  { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
832  { "avcintra-class","AVC-Intra class 50/100/200", OFFSET(avcintra_class),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 200 , VE},
833  { "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 },
834  { NULL },
835 };
836 
837 static const AVClass x264_class = {
838  .class_name = "libx264",
839  .item_name = av_default_item_name,
840  .option = options,
841  .version = LIBAVUTIL_VERSION_INT,
842 };
843 
844 static const AVClass rgbclass = {
845  .class_name = "libx264rgb",
846  .item_name = av_default_item_name,
847  .option = options,
848  .version = LIBAVUTIL_VERSION_INT,
849 };
850 
851 static const AVCodecDefault x264_defaults[] = {
852  { "b", "0" },
853  { "bf", "-1" },
854  { "flags2", "0" },
855  { "g", "-1" },
856  { "i_qfactor", "-1" },
857  { "b_qfactor", "-1" },
858  { "qmin", "-1" },
859  { "qmax", "-1" },
860  { "qdiff", "-1" },
861  { "qblur", "-1" },
862  { "qcomp", "-1" },
863 // { "rc_lookahead", "-1" },
864  { "refs", "-1" },
865  { "sc_threshold", "-1" },
866  { "trellis", "-1" },
867  { "nr", "-1" },
868  { "me_range", "-1" },
869  { "me_method", "-1" },
870  { "subq", "-1" },
871  { "b_strategy", "-1" },
872  { "keyint_min", "-1" },
873  { "coder", "-1" },
874  { "cmp", "-1" },
875  { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
876  { "thread_type", "0" },
877  { "flags", "+cgop" },
878  { "rc_init_occupancy","-1" },
879  { NULL },
880 };
881 
883  .name = "libx264",
884  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
885  .type = AVMEDIA_TYPE_VIDEO,
886  .id = AV_CODEC_ID_H264,
887  .priv_data_size = sizeof(X264Context),
888  .init = X264_init,
889  .encode2 = X264_frame,
890  .close = X264_close,
891  .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
892  .priv_class = &x264_class,
893  .defaults = x264_defaults,
895  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
897 };
898 
900  .name = "libx264rgb",
901  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
902  .type = AVMEDIA_TYPE_VIDEO,
903  .id = AV_CODEC_ID_H264,
904  .priv_data_size = sizeof(X264Context),
905  .init = X264_init,
906  .encode2 = X264_frame,
907  .close = X264_close,
908  .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
909  .priv_class = &rgbclass,
910  .defaults = x264_defaults,
911  .pix_fmts = pix_fmts_8bit_rgb,
912 };
#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:335
#define FF_PROFILE_H264_HIGH_10
Definition: avcodec.h:2872
#define NULL
Definition: coverity.c:32
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1736
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:141
char * partitions
Definition: libx264.c:78
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
int dct8x8
Definition: libx264.c:72
AVOption.
Definition: opt.h:255
Views are alternated temporally.
Definition: stereo3d.h:66
#define CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
Definition: avcodec.h:737
#define FF_PROFILE_H264_HIGH_444
Definition: avcodec.h:2876
const char * fmt
Definition: avisynth_c.h:632
AVCodec ff_libx264_encoder
Definition: libx264.c:882
float qblur
amount of qscale smoothing over time (0.0-1.0)
Definition: avcodec.h:2263
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
#define CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
Definition: avcodec.h:736
AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2745
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:1503
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2366
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:1960
int num
numerator
Definition: rational.h:44
static enum AVPixelFormat pix_fmts_8bit_rgb[]
Definition: libx264.c:754
enhanced predictive zonal search
Definition: avcodec.h:649
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:1623
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1444
int bluray_compat
Definition: libx264.c:68
int rtp_payload_size
Definition: avcodec.h:2465
char * wpredp
Definition: libx264.c:54
static void X264_log(void *p, int level, const char *fmt, va_list args)
Definition: libx264.c:87
static AVPacket pkt
#define FF_PROFILE_H264_MAIN
Definition: avcodec.h:2869
int profile
profile
Definition: avcodec.h:2835
AVCodec.
Definition: avcodec.h:3181
Definition: h264.h:117
static av_cold int X264_init(AVCodecContext *avctx)
Definition: libx264.c:371
int scenechange_threshold
scene change detection threshold 0 is default, larger means fewer detected scene changes.
Definition: avcodec.h:1802
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1369
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:620
x264_param_t params
Definition: libx264.c:44
char * x264opts
Definition: libx264.c:55
#define CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:746
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 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
static const AVClass rgbclass
Definition: libx264.c:844
uint8_t
#define av_cold
Definition: attributes.h:74
#define av_malloc(s)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:135
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:1735
#define CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:758
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:1512
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:1355
int me_cmp
motion estimation comparison function
Definition: avcodec.h:1630
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:1664
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:2380
uint8_t * data
Definition: avcodec.h:1162
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
int intra_refresh
Definition: libx264.c:67
#define AV_PIX_FMT_NV20
Definition: pixfmt.h:403
#define av_log(a,...)
int rc_lookahead
Definition: libx264.c:63
hexagon based search
Definition: avcodec.h:651
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1208
int chromaoffset
chroma qp offset from luma
Definition: avcodec.h:1908
#define CODEC_FLAG_LOOP_FILTER
loop filter
Definition: avcodec.h:762
static enum AVPixelFormat pix_fmts_10bit[]
Definition: libx264.c:747
#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:1533
int profile
Definition: mxfenc.c:1804
#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:824
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:148
int qmax
maximum quantizer
Definition: avcodec.h:2277
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:175
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int fastfirstpass
Definition: libx264.c:53
static const AVClass x264_class
Definition: libx264.c:837
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
CODEC_FLAG_*.
Definition: avcodec.h:1335
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:2327
int mbtree
Definition: libx264.c:75
const char * name
Name of the codec implementation.
Definition: avcodec.h:3188
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:1549
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:367
char * deblock
Definition: libx264.c:76
transformed exhaustive search algorithm
Definition: avcodec.h:653
Libavcodec external API header.
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1168
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:2304
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
int refs
number of reference frames
Definition: avcodec.h:1901
static enum AVPixelFormat pix_fmts_9bit[]
Definition: libx264.c:742
#define PARSE_X264_OPT(name, var)
Definition: libx264.c:365
int bit_rate
the average bitrate
Definition: avcodec.h:1305
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3202
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:242
#define OPT_STR(opt, param)
Definition: libx264.c:321
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:75
ret
Definition: avfilter.c:974
int width
picture width / height.
Definition: avcodec.h:1414
int cqp
Definition: libx264.c:58
#define FF_CEIL_RSHIFT(a, b)
Definition: common.h:57
x264_t * enc
Definition: libx264.c:45
#define CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:878
int b_frame_strategy
Definition: avcodec.h:1518
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:1939
int level
level
Definition: avcodec.h:2925
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:283
#define CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:756
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:1378
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:2284
int weightp
Definition: libx264.c:64
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:363
char * x264_params
Definition: libx264.c:84
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2753
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:523
static enum AVPixelFormat pix_fmts_8bit[]
Definition: libx264.c:731
static const AVCodecDefault x264_defaults[]
Definition: libx264.c:851
double av_strtod(const char *numstr, char **tail)
Parse the string in numstr and return its value as a double.
Definition: eval.c:92
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:304
#define FF_THREAD_SLICE
Decode more than one part of a single frame at once.
Definition: avcodec.h:2765
char * av_strdup(const char *s)
Duplicate the string s.
Definition: mem.c:265
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:1241
static const AVOption options[]
Definition: libx264.c:775
int qmin
minimum quantizer
Definition: avcodec.h:2270
uint8_t * data
Definition: frame.h:136
int extradata_size
Definition: avcodec.h:1356
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:364
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:1953
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:1946
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:103
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:267
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:361
#define FF_CODER_TYPE_AC
Definition: avcodec.h:2369
float qcompress
amount of qscale change between easy & hard scenes (0.0-1.0)
Definition: avcodec.h:2262
int sei_size
Definition: libx264.c:48
#define CODEC_FLAG_CLOSED_GOP
Definition: avcodec.h:764
char * preset
Definition: libx264.c:49
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:1321
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:365
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
int fast_pskip
Definition: libx264.c:73
int noise_reduction
noise reduction strength
Definition: avcodec.h:1809
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:1435
static av_cold void X264_init_static(AVCodec *codec)
Definition: libx264.c:763
int mixed_refs
Definition: libx264.c:71
preset
Definition: vf_curves.c:46
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:2871
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 VE
Definition: libx264.c:774
int weightb
Definition: libx264.c:65
float aq_strength
Definition: libx264.c:60
common internal api header.
Bi-dir predicted.
Definition: avutil.h:269
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:77
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:215
int trellis
trellis RD quantization
Definition: avcodec.h:2436
int slices
Number of slices.
Definition: avcodec.h:1976
void * priv_data
Definition: avcodec.h:1283
char * value
Definition: dict.h:88
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:652
AVCodec ff_libx264rgb_encoder
Definition: libx264.c:899
#define FF_PROFILE_H264_BASELINE
Definition: avcodec.h:2867
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:220
#define FF_PROFILE_H264_HIGH_422
Definition: avcodec.h:2874
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1161
float crf_max
Definition: libx264.c:57
#define OFFSET(x)
Definition: libx264.c:773
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:161
static const AVCodecDefault defaults[]
Definition: dcaenc.c:950
int me_method
Motion estimation algorithm used for video coding.
Definition: avcodec.h:1453
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:1139
int me_subpel_quality
subpel ME quality
Definition: avcodec.h:1706
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1155
Predicted.
Definition: avutil.h:268
int thread_type
Which multithreading methods to use.
Definition: avcodec.h:2763
simple arithmetic expression evaluator
int keyint_min
minimum GOP size
Definition: avcodec.h:1894