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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.num != ctx->sample_aspect_ratio.den * x4->params.vui.i_sar_width) {
195  x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den;
196  x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num;
197  x264_encoder_reconfig(x4->enc, &x4->params);
198  }
199 
200  if (x4->params.rc.i_vbv_buffer_size != ctx->rc_buffer_size / 1000 ||
201  x4->params.rc.i_vbv_max_bitrate != ctx->rc_max_rate / 1000) {
202  x4->params.rc.i_vbv_buffer_size = ctx->rc_buffer_size / 1000;
203  x4->params.rc.i_vbv_max_bitrate = ctx->rc_max_rate / 1000;
204  x264_encoder_reconfig(x4->enc, &x4->params);
205  }
206 
207  if (x4->params.rc.i_rc_method == X264_RC_ABR &&
208  x4->params.rc.i_bitrate != ctx->bit_rate / 1000) {
209  x4->params.rc.i_bitrate = ctx->bit_rate / 1000;
210  x264_encoder_reconfig(x4->enc, &x4->params);
211  }
212 
213  if (x4->crf >= 0 &&
214  x4->params.rc.i_rc_method == X264_RC_CRF &&
215  x4->params.rc.f_rf_constant != x4->crf) {
216  x4->params.rc.f_rf_constant = x4->crf;
217  x264_encoder_reconfig(x4->enc, &x4->params);
218  }
219 
220  if (x4->params.rc.i_rc_method == X264_RC_CQP &&
221  x4->cqp >= 0 &&
222  x4->params.rc.i_qp_constant != x4->cqp) {
223  x4->params.rc.i_qp_constant = x4->cqp;
224  x264_encoder_reconfig(x4->enc, &x4->params);
225  }
226 
227  if (x4->crf_max >= 0 &&
228  x4->params.rc.f_rf_constant_max != x4->crf_max) {
229  x4->params.rc.f_rf_constant_max = x4->crf_max;
230  x264_encoder_reconfig(x4->enc, &x4->params);
231  }
232  }
233 
235  if (side_data) {
236  AVStereo3D *stereo = (AVStereo3D *)side_data->data;
237  int fpa_type;
238 
239  switch (stereo->type) {
241  fpa_type = 0;
242  break;
243  case AV_STEREO3D_COLUMNS:
244  fpa_type = 1;
245  break;
246  case AV_STEREO3D_LINES:
247  fpa_type = 2;
248  break;
250  fpa_type = 3;
251  break;
253  fpa_type = 4;
254  break;
256  fpa_type = 5;
257  break;
258  default:
259  fpa_type = -1;
260  break;
261  }
262 
263  if (fpa_type != x4->params.i_frame_packing) {
264  x4->params.i_frame_packing = fpa_type;
265  x264_encoder_reconfig(x4->enc, &x4->params);
266  }
267  }
268  }
269  do {
270  if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
271  return AVERROR_EXTERNAL;
272 
273  ret = encode_nals(ctx, pkt, nal, nnal);
274  if (ret < 0)
275  return ret;
276  } while (!ret && !frame && x264_encoder_delayed_frames(x4->enc));
277 
278  pkt->pts = pic_out.i_pts;
279  pkt->dts = pic_out.i_dts;
280 
281  switch (pic_out.i_type) {
282  case X264_TYPE_IDR:
283  case X264_TYPE_I:
285  break;
286  case X264_TYPE_P:
288  break;
289  case X264_TYPE_B:
290  case X264_TYPE_BREF:
292  break;
293  }
294 
295  pkt->flags |= AV_PKT_FLAG_KEY*pic_out.b_keyframe;
296  if (ret)
297  ctx->coded_frame->quality = (pic_out.i_qpplus1 - 1) * FF_QP2LAMBDA;
298 
299  *got_packet = ret;
300  return 0;
301 }
302 
304 {
305  X264Context *x4 = avctx->priv_data;
306 
307  av_freep(&avctx->extradata);
308  av_freep(&x4->sei);
309 
310  if (x4->enc) {
311  x264_encoder_close(x4->enc);
312  x4->enc = NULL;
313  }
314 
315  av_frame_free(&avctx->coded_frame);
316 
317  return 0;
318 }
319 
320 #define OPT_STR(opt, param) \
321  do { \
322  int ret; \
323  if (param && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
324  if(ret == X264_PARAM_BAD_NAME) \
325  av_log(avctx, AV_LOG_ERROR, \
326  "bad option '%s': '%s'\n", opt, param); \
327  else \
328  av_log(avctx, AV_LOG_ERROR, \
329  "bad value for '%s': '%s'\n", opt, param); \
330  return -1; \
331  } \
332  } while (0)
333 
335 {
336  switch (pix_fmt) {
337  case AV_PIX_FMT_YUV420P:
338  case AV_PIX_FMT_YUVJ420P:
339  case AV_PIX_FMT_YUV420P9:
340  case AV_PIX_FMT_YUV420P10: return X264_CSP_I420;
341  case AV_PIX_FMT_YUV422P:
342  case AV_PIX_FMT_YUVJ422P:
343  case AV_PIX_FMT_YUV422P10: return X264_CSP_I422;
344  case AV_PIX_FMT_YUV444P:
345  case AV_PIX_FMT_YUVJ444P:
346  case AV_PIX_FMT_YUV444P9:
347  case AV_PIX_FMT_YUV444P10: return X264_CSP_I444;
348 #ifdef X264_CSP_BGR
349  case AV_PIX_FMT_BGR0:
350  return X264_CSP_BGRA;
351  case AV_PIX_FMT_BGR24:
352  return X264_CSP_BGR;
353 
354  case AV_PIX_FMT_RGB24:
355  return X264_CSP_RGB;
356 #endif
357  case AV_PIX_FMT_NV12: return X264_CSP_NV12;
358  case AV_PIX_FMT_NV16:
359  case AV_PIX_FMT_NV20: return X264_CSP_NV16;
360  };
361  return 0;
362 }
363 
364 #define PARSE_X264_OPT(name, var)\
365  if (x4->var && x264_param_parse(&x4->params, name, x4->var) < 0) {\
366  av_log(avctx, AV_LOG_ERROR, "Error parsing option '%s' with value '%s'.\n", name, x4->var);\
367  return AVERROR(EINVAL);\
368  }
369 
370 static av_cold int X264_init(AVCodecContext *avctx)
371 {
372  X264Context *x4 = avctx->priv_data;
373  int sw,sh;
374 
375  if (avctx->global_quality > 0)
376  av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
377 
378  x264_param_default(&x4->params);
379 
380  x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER;
381 
382  if (x4->preset || x4->tune)
383  if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) {
384  int i;
385  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune);
386  av_log(avctx, AV_LOG_INFO, "Possible presets:");
387  for (i = 0; x264_preset_names[i]; i++)
388  av_log(avctx, AV_LOG_INFO, " %s", x264_preset_names[i]);
389  av_log(avctx, AV_LOG_INFO, "\n");
390  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
391  for (i = 0; x264_tune_names[i]; i++)
392  av_log(avctx, AV_LOG_INFO, " %s", x264_tune_names[i]);
393  av_log(avctx, AV_LOG_INFO, "\n");
394  return AVERROR(EINVAL);
395  }
396 
397  if (avctx->level > 0)
398  x4->params.i_level_idc = avctx->level;
399 
400  x4->params.pf_log = X264_log;
401  x4->params.p_log_private = avctx;
402  x4->params.i_log_level = X264_LOG_DEBUG;
403  x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt);
404 
405  OPT_STR("weightp", x4->wpredp);
406 
407  if (avctx->bit_rate) {
408  x4->params.rc.i_bitrate = avctx->bit_rate / 1000;
409  x4->params.rc.i_rc_method = X264_RC_ABR;
410  }
411  x4->params.rc.i_vbv_buffer_size = avctx->rc_buffer_size / 1000;
412  x4->params.rc.i_vbv_max_bitrate = avctx->rc_max_rate / 1000;
413  x4->params.rc.b_stat_write = avctx->flags & CODEC_FLAG_PASS1;
414  if (avctx->flags & CODEC_FLAG_PASS2) {
415  x4->params.rc.b_stat_read = 1;
416  } else {
417  if (x4->crf >= 0) {
418  x4->params.rc.i_rc_method = X264_RC_CRF;
419  x4->params.rc.f_rf_constant = x4->crf;
420  } else if (x4->cqp >= 0) {
421  x4->params.rc.i_rc_method = X264_RC_CQP;
422  x4->params.rc.i_qp_constant = x4->cqp;
423  }
424 
425  if (x4->crf_max >= 0)
426  x4->params.rc.f_rf_constant_max = x4->crf_max;
427  }
428 
429  if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy > 0 &&
430  (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) {
431  x4->params.rc.f_vbv_buffer_init =
432  (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size;
433  }
434 
435  OPT_STR("level", x4->level);
436 
437  if (avctx->i_quant_factor > 0)
438  x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor);
439  if (avctx->b_quant_factor > 0)
440  x4->params.rc.f_pb_factor = avctx->b_quant_factor;
441  if (avctx->chromaoffset)
442  x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset;
443 
444  if (avctx->me_method == ME_EPZS)
445  x4->params.analyse.i_me_method = X264_ME_DIA;
446  else if (avctx->me_method == ME_HEX)
447  x4->params.analyse.i_me_method = X264_ME_HEX;
448  else if (avctx->me_method == ME_UMH)
449  x4->params.analyse.i_me_method = X264_ME_UMH;
450  else if (avctx->me_method == ME_FULL)
451  x4->params.analyse.i_me_method = X264_ME_ESA;
452  else if (avctx->me_method == ME_TESA)
453  x4->params.analyse.i_me_method = X264_ME_TESA;
454 
455  if (avctx->gop_size >= 0)
456  x4->params.i_keyint_max = avctx->gop_size;
457  if (avctx->max_b_frames >= 0)
458  x4->params.i_bframe = avctx->max_b_frames;
459  if (avctx->scenechange_threshold >= 0)
460  x4->params.i_scenecut_threshold = avctx->scenechange_threshold;
461  if (avctx->qmin >= 0)
462  x4->params.rc.i_qp_min = avctx->qmin;
463  if (avctx->qmax >= 0)
464  x4->params.rc.i_qp_max = avctx->qmax;
465  if (avctx->max_qdiff >= 0)
466  x4->params.rc.i_qp_step = avctx->max_qdiff;
467  if (avctx->qblur >= 0)
468  x4->params.rc.f_qblur = avctx->qblur; /* temporally blur quants */
469  if (avctx->qcompress >= 0)
470  x4->params.rc.f_qcompress = avctx->qcompress; /* 0.0 => cbr, 1.0 => constant qp */
471  if (avctx->refs >= 0)
472  x4->params.i_frame_reference = avctx->refs;
473  else if (x4->level) {
474  int i;
475  int mbn = FF_CEIL_RSHIFT(avctx->width, 4) * FF_CEIL_RSHIFT(avctx->height, 4);
476  int level_id = -1;
477  char *tail;
478  int scale = X264_BUILD < 129 ? 384 : 1;
479 
480  if (!strcmp(x4->level, "1b")) {
481  level_id = 9;
482  } else if (strlen(x4->level) <= 3){
483  level_id = av_strtod(x4->level, &tail) * 10 + 0.5;
484  if (*tail)
485  level_id = -1;
486  }
487  if (level_id <= 0)
488  av_log(avctx, AV_LOG_WARNING, "Failed to parse level\n");
489 
490  for (i = 0; i<x264_levels[i].level_idc; i++)
491  if (x264_levels[i].level_idc == level_id)
492  x4->params.i_frame_reference = av_clip(x264_levels[i].dpb / mbn / scale, 1, x4->params.i_frame_reference);
493  }
494 
495  if (avctx->trellis >= 0)
496  x4->params.analyse.i_trellis = avctx->trellis;
497  if (avctx->me_range >= 0)
498  x4->params.analyse.i_me_range = avctx->me_range;
499  if (avctx->noise_reduction >= 0)
500  x4->params.analyse.i_noise_reduction = avctx->noise_reduction;
501  if (avctx->me_subpel_quality >= 0)
502  x4->params.analyse.i_subpel_refine = avctx->me_subpel_quality;
503  if (avctx->b_frame_strategy >= 0)
504  x4->params.i_bframe_adaptive = avctx->b_frame_strategy;
505  if (avctx->keyint_min >= 0)
506  x4->params.i_keyint_min = avctx->keyint_min;
507  if (avctx->coder_type >= 0)
508  x4->params.b_cabac = avctx->coder_type == FF_CODER_TYPE_AC;
509  if (avctx->me_cmp >= 0)
510  x4->params.analyse.b_chroma_me = avctx->me_cmp & FF_CMP_CHROMA;
511 
512  if (x4->aq_mode >= 0)
513  x4->params.rc.i_aq_mode = x4->aq_mode;
514  if (x4->aq_strength >= 0)
515  x4->params.rc.f_aq_strength = x4->aq_strength;
516  PARSE_X264_OPT("psy-rd", psy_rd);
517  PARSE_X264_OPT("deblock", deblock);
518  PARSE_X264_OPT("partitions", partitions);
519  PARSE_X264_OPT("stats", stats);
520  if (x4->psy >= 0)
521  x4->params.analyse.b_psy = x4->psy;
522  if (x4->rc_lookahead >= 0)
523  x4->params.rc.i_lookahead = x4->rc_lookahead;
524  if (x4->weightp >= 0)
525  x4->params.analyse.i_weighted_pred = x4->weightp;
526  if (x4->weightb >= 0)
527  x4->params.analyse.b_weighted_bipred = x4->weightb;
528  if (x4->cplxblur >= 0)
529  x4->params.rc.f_complexity_blur = x4->cplxblur;
530 
531  if (x4->ssim >= 0)
532  x4->params.analyse.b_ssim = x4->ssim;
533  if (x4->intra_refresh >= 0)
534  x4->params.b_intra_refresh = x4->intra_refresh;
535  if (x4->bluray_compat >= 0) {
536  x4->params.b_bluray_compat = x4->bluray_compat;
537  x4->params.b_vfr_input = 0;
538  }
539  if (x4->avcintra_class >= 0)
540 #if X264_BUILD >= 142
541  x4->params.i_avcintra_class = x4->avcintra_class;
542 #else
543  av_log(avctx, AV_LOG_ERROR,
544  "x264 too old for AVC Intra, at least version 142 needed\n");
545 #endif
546  if (x4->b_bias != INT_MIN)
547  x4->params.i_bframe_bias = x4->b_bias;
548  if (x4->b_pyramid >= 0)
549  x4->params.i_bframe_pyramid = x4->b_pyramid;
550  if (x4->mixed_refs >= 0)
551  x4->params.analyse.b_mixed_references = x4->mixed_refs;
552  if (x4->dct8x8 >= 0)
553  x4->params.analyse.b_transform_8x8 = x4->dct8x8;
554  if (x4->fast_pskip >= 0)
555  x4->params.analyse.b_fast_pskip = x4->fast_pskip;
556  if (x4->aud >= 0)
557  x4->params.b_aud = x4->aud;
558  if (x4->mbtree >= 0)
559  x4->params.rc.b_mb_tree = x4->mbtree;
560  if (x4->direct_pred >= 0)
561  x4->params.analyse.i_direct_mv_pred = x4->direct_pred;
562 
563  if (x4->slice_max_size >= 0)
564  x4->params.i_slice_max_size = x4->slice_max_size;
565  else {
566  /*
567  * Allow x264 to be instructed through AVCodecContext about the maximum
568  * size of the RTP payload. For example, this enables the production of
569  * payload suitable for the H.264 RTP packetization-mode 0 i.e. single
570  * NAL unit per RTP packet.
571  */
572  if (avctx->rtp_payload_size)
573  x4->params.i_slice_max_size = avctx->rtp_payload_size;
574  }
575 
576  if (x4->fastfirstpass)
577  x264_param_apply_fastfirstpass(&x4->params);
578 
579  /* Allow specifying the x264 profile through AVCodecContext. */
580  if (!x4->profile)
581  switch (avctx->profile) {
583  x4->profile = av_strdup("baseline");
584  break;
586  x4->profile = av_strdup("high");
587  break;
589  x4->profile = av_strdup("high10");
590  break;
592  x4->profile = av_strdup("high422");
593  break;
595  x4->profile = av_strdup("high444");
596  break;
598  x4->profile = av_strdup("main");
599  break;
600  default:
601  break;
602  }
603 
604  if (x4->nal_hrd >= 0)
605  x4->params.i_nal_hrd = x4->nal_hrd;
606 
607  if (x4->profile)
608  if (x264_param_apply_profile(&x4->params, x4->profile) < 0) {
609  int i;
610  av_log(avctx, AV_LOG_ERROR, "Error setting profile %s.\n", x4->profile);
611  av_log(avctx, AV_LOG_INFO, "Possible profiles:");
612  for (i = 0; x264_profile_names[i]; i++)
613  av_log(avctx, AV_LOG_INFO, " %s", x264_profile_names[i]);
614  av_log(avctx, AV_LOG_INFO, "\n");
615  return AVERROR(EINVAL);
616  }
617 
618  x4->params.i_width = avctx->width;
619  x4->params.i_height = avctx->height;
620  av_reduce(&sw, &sh, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 4096);
621  x4->params.vui.i_sar_width = sw;
622  x4->params.vui.i_sar_height = sh;
623  x4->params.i_timebase_den = avctx->time_base.den;
624  x4->params.i_timebase_num = avctx->time_base.num;
625  x4->params.i_fps_num = avctx->time_base.den;
626  x4->params.i_fps_den = avctx->time_base.num * avctx->ticks_per_frame;
627 
628  x4->params.analyse.b_psnr = avctx->flags & CODEC_FLAG_PSNR;
629 
630  x4->params.i_threads = avctx->thread_count;
631  if (avctx->thread_type)
632  x4->params.b_sliced_threads = avctx->thread_type == FF_THREAD_SLICE;
633 
634  x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT;
635 
636  x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP);
637 
638  x4->params.i_slice_count = avctx->slices;
639 
640  x4->params.vui.b_fullrange = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
641  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
642  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
643  avctx->color_range == AVCOL_RANGE_JPEG;
644 
645  if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
646  x4->params.vui.i_colmatrix = avctx->colorspace;
648  x4->params.vui.i_colorprim = avctx->color_primaries;
649  if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
650  x4->params.vui.i_transfer = avctx->color_trc;
651 
652  if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER)
653  x4->params.b_repeat_headers = 0;
654 
655  if(x4->x264opts){
656  const char *p= x4->x264opts;
657  while(p){
658  char param[256]={0}, val[256]={0};
659  if(sscanf(p, "%255[^:=]=%255[^:]", param, val) == 1){
660  OPT_STR(param, "1");
661  }else
662  OPT_STR(param, val);
663  p= strchr(p, ':');
664  p+=!!p;
665  }
666  }
667 
668  if (x4->x264_params) {
669  AVDictionary *dict = NULL;
670  AVDictionaryEntry *en = NULL;
671 
672  if (!av_dict_parse_string(&dict, x4->x264_params, "=", ":", 0)) {
673  while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
674  if (x264_param_parse(&x4->params, en->key, en->value) < 0)
675  av_log(avctx, AV_LOG_WARNING,
676  "Error parsing option '%s = %s'.\n",
677  en->key, en->value);
678  }
679 
680  av_dict_free(&dict);
681  }
682  }
683 
684  // update AVCodecContext with x264 parameters
685  avctx->has_b_frames = x4->params.i_bframe ?
686  x4->params.i_bframe_pyramid ? 2 : 1 : 0;
687  if (avctx->max_b_frames < 0)
688  avctx->max_b_frames = 0;
689 
690  avctx->bit_rate = x4->params.rc.i_bitrate*1000;
691 
692  x4->enc = x264_encoder_open(&x4->params);
693  if (!x4->enc)
694  return AVERROR_EXTERNAL;
695 
696  avctx->coded_frame = av_frame_alloc();
697  if (!avctx->coded_frame)
698  return AVERROR(ENOMEM);
699 
700  if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
701  x264_nal_t *nal;
702  uint8_t *p;
703  int nnal, s, i;
704 
705  s = x264_encoder_headers(x4->enc, &nal, &nnal);
706  avctx->extradata = p = av_malloc(s);
707  if (!p)
708  return AVERROR(ENOMEM);
709 
710  for (i = 0; i < nnal; i++) {
711  /* Don't put the SEI in extradata. */
712  if (nal[i].i_type == NAL_SEI) {
713  av_log(avctx, AV_LOG_INFO, "%s\n", nal[i].p_payload+25);
714  x4->sei_size = nal[i].i_payload;
715  x4->sei = av_malloc(x4->sei_size);
716  if (!x4->sei)
717  return AVERROR(ENOMEM);
718  memcpy(x4->sei, nal[i].p_payload, nal[i].i_payload);
719  continue;
720  }
721  memcpy(p, nal[i].p_payload, nal[i].i_payload);
722  p += nal[i].i_payload;
723  }
724  avctx->extradata_size = p - avctx->extradata;
725  }
726 
727  return 0;
728 }
729 
730 static const enum AVPixelFormat pix_fmts_8bit[] = {
740 };
741 static const enum AVPixelFormat pix_fmts_9bit[] = {
745 };
746 static const enum AVPixelFormat pix_fmts_10bit[] = {
752 };
753 static const enum AVPixelFormat pix_fmts_8bit_rgb[] = {
754 #ifdef X264_CSP_BGR
758 #endif
760 };
761 
762 static av_cold void X264_init_static(AVCodec *codec)
763 {
764  if (x264_bit_depth == 8)
765  codec->pix_fmts = pix_fmts_8bit;
766  else if (x264_bit_depth == 9)
767  codec->pix_fmts = pix_fmts_9bit;
768  else if (x264_bit_depth == 10)
769  codec->pix_fmts = pix_fmts_10bit;
770 }
771 
772 #define OFFSET(x) offsetof(X264Context, x)
773 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
774 static const AVOption options[] = {
775  { "preset", "Set the encoding preset (cf. x264 --fullhelp)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "medium" }, 0, 0, VE},
776  { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
777  { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
778  { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE},
779  {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
780  {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
781  {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
782  {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE},
783  { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE },
784  { "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 },
785  { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
786  { "aq-mode", "AQ method", OFFSET(aq_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "aq_mode"},
787  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_NONE}, INT_MIN, INT_MAX, VE, "aq_mode" },
788  { "variance", "Variance AQ (complexity mask)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_VARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
789  { "autovariance", "Auto-variance AQ", 0, AV_OPT_TYPE_CONST, {.i64 = X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
790 #if X264_BUILD >= 144
791  { "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" },
792 #endif
793  { "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},
794  { "psy", "Use psychovisual optimizations.", OFFSET(psy), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
795  { "psy-rd", "Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.", OFFSET(psy_rd), AV_OPT_TYPE_STRING, {0 }, 0, 0, VE},
796  { "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 },
797  { "weightb", "Weighted prediction for B-frames.", OFFSET(weightb), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
798  { "weightp", "Weighted prediction analysis method.", OFFSET(weightp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "weightp" },
799  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_NONE}, INT_MIN, INT_MAX, VE, "weightp" },
800  { "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
801  { "smart", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_WEIGHTP_SMART}, INT_MIN, INT_MAX, VE, "weightp" },
802  { "ssim", "Calculate and print SSIM stats.", OFFSET(ssim), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
803  { "intra-refresh", "Use Periodic Intra Refresh instead of IDR frames.",OFFSET(intra_refresh),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
804  { "bluray-compat", "Bluray compatibility workarounds.", OFFSET(bluray_compat) ,AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
805  { "b-bias", "Influences how often B-frames are used", OFFSET(b_bias), AV_OPT_TYPE_INT, { .i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
806  { "b-pyramid", "Keep some B-frames as references.", OFFSET(b_pyramid), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "b_pyramid" },
807  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NONE}, INT_MIN, INT_MAX, VE, "b_pyramid" },
808  { "strict", "Strictly hierarchical pyramid", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
809  { "normal", "Non-strict (not Blu-ray compatible)", 0, AV_OPT_TYPE_CONST, {.i64 = X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
810  { "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 },
811  { "8x8dct", "High profile 8x8 transform.", OFFSET(dct8x8), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
812  { "fast-pskip", NULL, OFFSET(fast_pskip), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
813  { "aud", "Use access unit delimiters.", OFFSET(aud), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
814  { "mbtree", "Use macroblock tree ratecontrol.", OFFSET(mbtree), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE},
815  { "deblock", "Loop filter parameters, in <alpha:beta> form.", OFFSET(deblock), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
816  { "cplxblur", "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT, {.dbl = -1 }, -1, FLT_MAX, VE},
817  { "partitions", "A comma-separated list of partitions to consider. "
818  "Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all", OFFSET(partitions), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE},
819  { "direct-pred", "Direct MV prediction mode", OFFSET(direct_pred), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
820  { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_NONE }, 0, 0, VE, "direct-pred" },
821  { "spatial", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_SPATIAL }, 0, 0, VE, "direct-pred" },
822  { "temporal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
823  { "auto", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = X264_DIRECT_PRED_AUTO }, 0, 0, VE, "direct-pred" },
824  { "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 },
825  { "stats", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
826  { "nal-hrd", "Signal HRD information (requires vbv-bufsize; "
827  "cbr not allowed in .mp4)", OFFSET(nal_hrd), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "nal-hrd" },
828  { "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_NONE}, INT_MIN, INT_MAX, VE, "nal-hrd" },
829  { "vbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_VBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
830  { "cbr", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = X264_NAL_HRD_CBR}, INT_MIN, INT_MAX, VE, "nal-hrd" },
831  { "avcintra-class","AVC-Intra class 50/100/200", OFFSET(avcintra_class),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 200 , VE},
832  { "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 },
833  { NULL },
834 };
835 
836 static const AVClass x264_class = {
837  .class_name = "libx264",
838  .item_name = av_default_item_name,
839  .option = options,
840  .version = LIBAVUTIL_VERSION_INT,
841 };
842 
843 static const AVClass rgbclass = {
844  .class_name = "libx264rgb",
845  .item_name = av_default_item_name,
846  .option = options,
847  .version = LIBAVUTIL_VERSION_INT,
848 };
849 
850 static const AVCodecDefault x264_defaults[] = {
851  { "b", "0" },
852  { "bf", "-1" },
853  { "flags2", "0" },
854  { "g", "-1" },
855  { "i_qfactor", "-1" },
856  { "b_qfactor", "-1" },
857  { "qmin", "-1" },
858  { "qmax", "-1" },
859  { "qdiff", "-1" },
860  { "qblur", "-1" },
861  { "qcomp", "-1" },
862 // { "rc_lookahead", "-1" },
863  { "refs", "-1" },
864  { "sc_threshold", "-1" },
865  { "trellis", "-1" },
866  { "nr", "-1" },
867  { "me_range", "-1" },
868  { "me_method", "-1" },
869  { "subq", "-1" },
870  { "b_strategy", "-1" },
871  { "keyint_min", "-1" },
872  { "coder", "-1" },
873  { "cmp", "-1" },
874  { "threads", AV_STRINGIFY(X264_THREADS_AUTO) },
875  { "thread_type", "0" },
876  { "flags", "+cgop" },
877  { "rc_init_occupancy","-1" },
878  { NULL },
879 };
880 
882  .name = "libx264",
883  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
884  .type = AVMEDIA_TYPE_VIDEO,
885  .id = AV_CODEC_ID_H264,
886  .priv_data_size = sizeof(X264Context),
887  .init = X264_init,
888  .encode2 = X264_frame,
889  .close = X264_close,
890  .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
891  .priv_class = &x264_class,
892  .defaults = x264_defaults,
894  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
896 };
897 
899  .name = "libx264rgb",
900  .long_name = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB"),
901  .type = AVMEDIA_TYPE_VIDEO,
902  .id = AV_CODEC_ID_H264,
903  .priv_data_size = sizeof(X264Context),
904  .init = X264_init,
905  .encode2 = X264_frame,
906  .close = X264_close,
907  .capabilities = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
908  .priv_class = &rgbclass,
909  .defaults = x264_defaults,
910  .pix_fmts = pix_fmts_8bit_rgb,
911 };
#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:334
#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:1738
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:881
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:753
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:370
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:843
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:746
#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:836
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:741
#define PARSE_X264_OPT(name, var)
Definition: libx264.c:364
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:320
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:730
static const AVCodecDefault x264_defaults[]
Definition: libx264.c:850
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:303
#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:774
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:762
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:773
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:898
#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:772
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