FFmpeg
libx265.c
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1 /*
2  * libx265 encoder
3  *
4  * Copyright (c) 2013-2014 Derek Buitenhuis
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #if defined(_MSC_VER)
24 #define X265_API_IMPORTS 1
25 #endif
26 
27 #include <x265.h>
28 #include <float.h>
29 
30 #include "libavutil/internal.h"
31 #include "libavutil/common.h"
32 #include "libavutil/opt.h"
33 #include "libavutil/pixdesc.h"
34 #include "avcodec.h"
35 #include "internal.h"
36 
37 typedef struct libx265Context {
38  const AVClass *class;
39 
40  x265_encoder *encoder;
41  x265_param *params;
42  const x265_api *api;
43 
44  float crf;
46  char *preset;
47  char *tune;
48  char *profile;
49  char *x265_opts;
50 
51  /**
52  * If the encoder does not support ROI then warn the first time we
53  * encounter a frame with ROI side data.
54  */
57 
58 static int is_keyframe(NalUnitType naltype)
59 {
60  switch (naltype) {
61  case NAL_UNIT_CODED_SLICE_BLA_W_LP:
62  case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
63  case NAL_UNIT_CODED_SLICE_BLA_N_LP:
64  case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
65  case NAL_UNIT_CODED_SLICE_IDR_N_LP:
66  case NAL_UNIT_CODED_SLICE_CRA:
67  return 1;
68  default:
69  return 0;
70  }
71 }
72 
74 {
75  libx265Context *ctx = avctx->priv_data;
76 
77  ctx->api->param_free(ctx->params);
78 
79  if (ctx->encoder)
80  ctx->api->encoder_close(ctx->encoder);
81 
82  return 0;
83 }
84 
86 {
87  libx265Context *ctx = avctx->priv_data;
88  AVCPBProperties *cpb_props = NULL;
89 
90  ctx->api = x265_api_get(av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth);
91  if (!ctx->api)
92  ctx->api = x265_api_get(0);
93 
94  ctx->params = ctx->api->param_alloc();
95  if (!ctx->params) {
96  av_log(avctx, AV_LOG_ERROR, "Could not allocate x265 param structure.\n");
97  return AVERROR(ENOMEM);
98  }
99 
100  if (ctx->api->param_default_preset(ctx->params, ctx->preset, ctx->tune) < 0) {
101  int i;
102 
103  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", ctx->preset, ctx->tune);
104  av_log(avctx, AV_LOG_INFO, "Possible presets:");
105  for (i = 0; x265_preset_names[i]; i++)
106  av_log(avctx, AV_LOG_INFO, " %s", x265_preset_names[i]);
107 
108  av_log(avctx, AV_LOG_INFO, "\n");
109  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
110  for (i = 0; x265_tune_names[i]; i++)
111  av_log(avctx, AV_LOG_INFO, " %s", x265_tune_names[i]);
112 
113  av_log(avctx, AV_LOG_INFO, "\n");
114 
115  return AVERROR(EINVAL);
116  }
117 
118  ctx->params->frameNumThreads = avctx->thread_count;
119  if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
120  ctx->params->fpsNum = avctx->framerate.num;
121  ctx->params->fpsDenom = avctx->framerate.den;
122  } else {
123  ctx->params->fpsNum = avctx->time_base.den;
124  ctx->params->fpsDenom = avctx->time_base.num * avctx->ticks_per_frame;
125  }
126  ctx->params->sourceWidth = avctx->width;
127  ctx->params->sourceHeight = avctx->height;
128  ctx->params->bEnablePsnr = !!(avctx->flags & AV_CODEC_FLAG_PSNR);
129  ctx->params->bOpenGOP = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
130 
131  /* Tune the CTU size based on input resolution. */
132  if (ctx->params->sourceWidth < 64 || ctx->params->sourceHeight < 64)
133  ctx->params->maxCUSize = 32;
134  if (ctx->params->sourceWidth < 32 || ctx->params->sourceHeight < 32)
135  ctx->params->maxCUSize = 16;
136  if (ctx->params->sourceWidth < 16 || ctx->params->sourceHeight < 16) {
137  av_log(avctx, AV_LOG_ERROR, "Image size is too small (%dx%d).\n",
138  ctx->params->sourceWidth, ctx->params->sourceHeight);
139  return AVERROR(EINVAL);
140  }
141 
142 
143  ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1;
144 
145  ctx->params->vui.bEnableVideoFullRangeFlag = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
146  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
147  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
148  avctx->color_range == AVCOL_RANGE_JPEG;
149 
150  if ((avctx->color_primaries <= AVCOL_PRI_SMPTE432 &&
152  (avctx->color_trc <= AVCOL_TRC_ARIB_STD_B67 &&
153  avctx->color_trc != AVCOL_TRC_UNSPECIFIED) ||
154  (avctx->colorspace <= AVCOL_SPC_ICTCP &&
155  avctx->colorspace != AVCOL_SPC_UNSPECIFIED)) {
156 
157  ctx->params->vui.bEnableColorDescriptionPresentFlag = 1;
158 
159  // x265 validates the parameters internally
160  ctx->params->vui.colorPrimaries = avctx->color_primaries;
161  ctx->params->vui.transferCharacteristics = avctx->color_trc;
162  ctx->params->vui.matrixCoeffs = avctx->colorspace;
163  }
164 
165  if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0) {
166  char sar[12];
167  int sar_num, sar_den;
168 
169  av_reduce(&sar_num, &sar_den,
170  avctx->sample_aspect_ratio.num,
171  avctx->sample_aspect_ratio.den, 65535);
172  snprintf(sar, sizeof(sar), "%d:%d", sar_num, sar_den);
173  if (ctx->api->param_parse(ctx->params, "sar", sar) == X265_PARAM_BAD_VALUE) {
174  av_log(avctx, AV_LOG_ERROR, "Invalid SAR: %d:%d.\n", sar_num, sar_den);
175  return AVERROR_INVALIDDATA;
176  }
177  }
178 
179  switch (avctx->pix_fmt) {
180  case AV_PIX_FMT_YUV420P:
183  ctx->params->internalCsp = X265_CSP_I420;
184  break;
185  case AV_PIX_FMT_YUV422P:
188  ctx->params->internalCsp = X265_CSP_I422;
189  break;
190  case AV_PIX_FMT_GBRP:
191  case AV_PIX_FMT_GBRP10:
192  case AV_PIX_FMT_GBRP12:
193  ctx->params->vui.matrixCoeffs = AVCOL_SPC_RGB;
194  ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1;
195  ctx->params->vui.bEnableColorDescriptionPresentFlag = 1;
196  case AV_PIX_FMT_YUV444P:
199  ctx->params->internalCsp = X265_CSP_I444;
200  break;
201  case AV_PIX_FMT_GRAY8:
202  case AV_PIX_FMT_GRAY10:
203  case AV_PIX_FMT_GRAY12:
204  if (ctx->api->api_build_number < 85) {
205  av_log(avctx, AV_LOG_ERROR,
206  "libx265 version is %d, must be at least 85 for gray encoding.\n",
207  ctx->api->api_build_number);
208  return AVERROR_INVALIDDATA;
209  }
210  ctx->params->internalCsp = X265_CSP_I400;
211  break;
212  }
213 
214  if (ctx->crf >= 0) {
215  char crf[6];
216 
217  snprintf(crf, sizeof(crf), "%2.2f", ctx->crf);
218  if (ctx->api->param_parse(ctx->params, "crf", crf) == X265_PARAM_BAD_VALUE) {
219  av_log(avctx, AV_LOG_ERROR, "Invalid crf: %2.2f.\n", ctx->crf);
220  return AVERROR(EINVAL);
221  }
222  } else if (avctx->bit_rate > 0) {
223  ctx->params->rc.bitrate = avctx->bit_rate / 1000;
224  ctx->params->rc.rateControlMode = X265_RC_ABR;
225  }
226 
227  ctx->params->rc.vbvBufferSize = avctx->rc_buffer_size / 1000;
228  ctx->params->rc.vbvMaxBitrate = avctx->rc_max_rate / 1000;
229 
230  cpb_props = ff_add_cpb_side_data(avctx);
231  if (!cpb_props)
232  return AVERROR(ENOMEM);
233  cpb_props->buffer_size = ctx->params->rc.vbvBufferSize * 1000;
234  cpb_props->max_bitrate = ctx->params->rc.vbvMaxBitrate * 1000;
235  cpb_props->avg_bitrate = ctx->params->rc.bitrate * 1000;
236 
237  if (!(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER))
238  ctx->params->bRepeatHeaders = 1;
239 
240  if (ctx->x265_opts) {
241  AVDictionary *dict = NULL;
242  AVDictionaryEntry *en = NULL;
243 
244  if (!av_dict_parse_string(&dict, ctx->x265_opts, "=", ":", 0)) {
245  while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
246  int parse_ret = ctx->api->param_parse(ctx->params, en->key, en->value);
247 
248  switch (parse_ret) {
249  case X265_PARAM_BAD_NAME:
250  av_log(avctx, AV_LOG_WARNING,
251  "Unknown option: %s.\n", en->key);
252  break;
253  case X265_PARAM_BAD_VALUE:
254  av_log(avctx, AV_LOG_WARNING,
255  "Invalid value for %s: %s.\n", en->key, en->value);
256  break;
257  default:
258  break;
259  }
260  }
261  av_dict_free(&dict);
262  }
263  }
264 
265  if (ctx->params->rc.vbvBufferSize && avctx->rc_initial_buffer_occupancy > 1000 &&
266  ctx->params->rc.vbvBufferInit == 0.9) {
267  ctx->params->rc.vbvBufferInit = (float)avctx->rc_initial_buffer_occupancy / 1000;
268  }
269 
270  if (ctx->profile) {
271  if (ctx->api->param_apply_profile(ctx->params, ctx->profile) < 0) {
272  int i;
273  av_log(avctx, AV_LOG_ERROR, "Invalid or incompatible profile set: %s.\n", ctx->profile);
274  av_log(avctx, AV_LOG_INFO, "Possible profiles:");
275  for (i = 0; x265_profile_names[i]; i++)
276  av_log(avctx, AV_LOG_INFO, " %s", x265_profile_names[i]);
277  av_log(avctx, AV_LOG_INFO, "\n");
278  return AVERROR(EINVAL);
279  }
280  }
281 
282  ctx->encoder = ctx->api->encoder_open(ctx->params);
283  if (!ctx->encoder) {
284  av_log(avctx, AV_LOG_ERROR, "Cannot open libx265 encoder.\n");
285  libx265_encode_close(avctx);
286  return AVERROR_INVALIDDATA;
287  }
288 
289  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
290  x265_nal *nal;
291  int nnal;
292 
293  avctx->extradata_size = ctx->api->encoder_headers(ctx->encoder, &nal, &nnal);
294  if (avctx->extradata_size <= 0) {
295  av_log(avctx, AV_LOG_ERROR, "Cannot encode headers.\n");
296  libx265_encode_close(avctx);
297  return AVERROR_INVALIDDATA;
298  }
299 
301  if (!avctx->extradata) {
302  av_log(avctx, AV_LOG_ERROR,
303  "Cannot allocate HEVC header of size %d.\n", avctx->extradata_size);
304  libx265_encode_close(avctx);
305  return AVERROR(ENOMEM);
306  }
307 
308  memcpy(avctx->extradata, nal[0].payload, avctx->extradata_size);
309  }
310 
311  return 0;
312 }
313 
314 static av_cold int libx265_encode_set_roi(libx265Context *ctx, const AVFrame *frame, x265_picture* pic)
315 {
317  if (sd) {
318  if (ctx->params->rc.aqMode == X265_AQ_NONE) {
319  if (!ctx->roi_warned) {
320  ctx->roi_warned = 1;
321  av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
322  }
323  } else {
324  /* 8x8 block when qg-size is 8, 16*16 block otherwise. */
325  int mb_size = (ctx->params->rc.qgSize == 8) ? 8 : 16;
326  int mbx = (frame->width + mb_size - 1) / mb_size;
327  int mby = (frame->height + mb_size - 1) / mb_size;
328  int qp_range = 51 + 6 * (pic->bitDepth - 8);
329  int nb_rois;
330  const AVRegionOfInterest *roi;
331  uint32_t roi_size;
332  float *qoffsets; /* will be freed after encode is called. */
333 
334  roi = (const AVRegionOfInterest*)sd->data;
335  roi_size = roi->self_size;
336  if (!roi_size || sd->size % roi_size != 0) {
337  av_log(ctx, AV_LOG_ERROR, "Invalid AVRegionOfInterest.self_size.\n");
338  return AVERROR(EINVAL);
339  }
340  nb_rois = sd->size / roi_size;
341 
342  qoffsets = av_mallocz_array(mbx * mby, sizeof(*qoffsets));
343  if (!qoffsets)
344  return AVERROR(ENOMEM);
345 
346  // This list must be iterated in reverse because the first
347  // region in the list applies when regions overlap.
348  for (int i = nb_rois - 1; i >= 0; i--) {
349  int startx, endx, starty, endy;
350  float qoffset;
351 
352  roi = (const AVRegionOfInterest*)(sd->data + roi_size * i);
353 
354  starty = FFMIN(mby, roi->top / mb_size);
355  endy = FFMIN(mby, (roi->bottom + mb_size - 1)/ mb_size);
356  startx = FFMIN(mbx, roi->left / mb_size);
357  endx = FFMIN(mbx, (roi->right + mb_size - 1)/ mb_size);
358 
359  if (roi->qoffset.den == 0) {
360  av_free(qoffsets);
361  av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.qoffset.den must not be zero.\n");
362  return AVERROR(EINVAL);
363  }
364  qoffset = roi->qoffset.num * 1.0f / roi->qoffset.den;
365  qoffset = av_clipf(qoffset * qp_range, -qp_range, +qp_range);
366 
367  for (int y = starty; y < endy; y++)
368  for (int x = startx; x < endx; x++)
369  qoffsets[x + y*mbx] = qoffset;
370  }
371 
372  pic->quantOffsets = qoffsets;
373  }
374  }
375  return 0;
376 }
377 
379  const AVFrame *pic, int *got_packet)
380 {
381  libx265Context *ctx = avctx->priv_data;
382  x265_picture x265pic;
383  x265_picture x265pic_out = { 0 };
384  x265_nal *nal;
385  uint8_t *dst;
386  int payload = 0;
387  int nnal;
388  int ret;
389  int i;
390 
391  ctx->api->picture_init(ctx->params, &x265pic);
392 
393  if (pic) {
394  for (i = 0; i < 3; i++) {
395  x265pic.planes[i] = pic->data[i];
396  x265pic.stride[i] = pic->linesize[i];
397  }
398 
399  x265pic.pts = pic->pts;
400  x265pic.bitDepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth;
401 
402  x265pic.sliceType = pic->pict_type == AV_PICTURE_TYPE_I ?
403  (ctx->forced_idr ? X265_TYPE_IDR : X265_TYPE_I) :
404  pic->pict_type == AV_PICTURE_TYPE_P ? X265_TYPE_P :
405  pic->pict_type == AV_PICTURE_TYPE_B ? X265_TYPE_B :
406  X265_TYPE_AUTO;
407 
408  ret = libx265_encode_set_roi(ctx, pic, &x265pic);
409  if (ret < 0)
410  return ret;
411  }
412 
413  ret = ctx->api->encoder_encode(ctx->encoder, &nal, &nnal,
414  pic ? &x265pic : NULL, &x265pic_out);
415 
416  av_freep(&x265pic.quantOffsets);
417 
418  if (ret < 0)
419  return AVERROR_EXTERNAL;
420 
421  if (!nnal)
422  return 0;
423 
424  for (i = 0; i < nnal; i++)
425  payload += nal[i].sizeBytes;
426 
427  ret = ff_alloc_packet2(avctx, pkt, payload, payload);
428  if (ret < 0) {
429  av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
430  return ret;
431  }
432  dst = pkt->data;
433 
434  for (i = 0; i < nnal; i++) {
435  memcpy(dst, nal[i].payload, nal[i].sizeBytes);
436  dst += nal[i].sizeBytes;
437 
438  if (is_keyframe(nal[i].type))
439  pkt->flags |= AV_PKT_FLAG_KEY;
440  }
441 
442  pkt->pts = x265pic_out.pts;
443  pkt->dts = x265pic_out.dts;
444 
445 #if FF_API_CODED_FRAME
447  switch (x265pic_out.sliceType) {
448  case X265_TYPE_IDR:
449  case X265_TYPE_I:
451  break;
452  case X265_TYPE_P:
454  break;
455  case X265_TYPE_B:
457  break;
458  }
460 #endif
461 
462 #if X265_BUILD >= 130
463  if (x265pic_out.sliceType == X265_TYPE_B)
464 #else
465  if (x265pic_out.frameData.sliceType == 'b')
466 #endif
468 
469  *got_packet = 1;
470  return 0;
471 }
472 
473 static const enum AVPixelFormat x265_csp_eight[] = {
483 };
484 
485 static const enum AVPixelFormat x265_csp_ten[] = {
500 };
501 
502 static const enum AVPixelFormat x265_csp_twelve[] = {
522 };
523 
525 {
526  if (x265_api_get(12))
527  codec->pix_fmts = x265_csp_twelve;
528  else if (x265_api_get(10))
529  codec->pix_fmts = x265_csp_ten;
530  else if (x265_api_get(8))
531  codec->pix_fmts = x265_csp_eight;
532 }
533 
534 #define OFFSET(x) offsetof(libx265Context, x)
535 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
536 static const AVOption options[] = {
537  { "crf", "set the x265 crf", OFFSET(crf), AV_OPT_TYPE_FLOAT, { .dbl = -1 }, -1, FLT_MAX, VE },
538  { "forced-idr", "if forcing keyframes, force them as IDR frames", OFFSET(forced_idr),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
539  { "preset", "set the x265 preset", OFFSET(preset), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
540  { "tune", "set the x265 tune parameter", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
541  { "profile", "set the x265 profile", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
542  { "x265-params", "set the x265 configuration using a :-separated list of key=value parameters", OFFSET(x265_opts), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
543  { NULL }
544 };
545 
546 static const AVClass class = {
547  .class_name = "libx265",
548  .item_name = av_default_item_name,
549  .option = options,
551 };
552 
553 static const AVCodecDefault x265_defaults[] = {
554  { "b", "0" },
555  { NULL },
556 };
557 
559  .name = "libx265",
560  .long_name = NULL_IF_CONFIG_SMALL("libx265 H.265 / HEVC"),
561  .type = AVMEDIA_TYPE_VIDEO,
562  .id = AV_CODEC_ID_HEVC,
563  .init = libx265_encode_init,
564  .init_static_data = libx265_encode_init_csp,
565  .encode2 = libx265_encode_frame,
566  .close = libx265_encode_close,
567  .priv_data_size = sizeof(libx265Context),
568  .priv_class = &class,
569  .defaults = x265_defaults,
571  .wrapper_name = "libx265",
572 };
char * profile
Definition: libx265.c:48
#define NULL
Definition: coverity.c:32
static const AVOption options[]
Definition: libx265.c:536
AVRational framerate
Definition: avcodec.h:3108
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
int top
Distance in pixels from the top edge of the frame to the top and bottom edges and from the left edge ...
Definition: frame.h:235
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
AVOption.
Definition: opt.h:246
static int is_keyframe(NalUnitType naltype)
Definition: libx265.c:58
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1618
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
float crf
Definition: libx265.c:44
int max_bitrate
Maximum bitrate of the stream, in bits per second.
Definition: avcodec.h:1137
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2474
SMPTE ST 432-1 (2010) / P3 D65 / Display P3.
Definition: pixfmt.h:458
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:2203
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
int num
Numerator.
Definition: rational.h:59
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:403
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
int forced_idr
Definition: libx265.c:45
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:1947
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1778
GLint GLenum type
Definition: opengl_enc.c:104
x265_param * params
Definition: libx265.c:41
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:391
static AVPacket pkt
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1052
AVCodec.
Definition: avcodec.h:3492
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
Definition: pixfmt.h:498
#define AV_PKT_FLAG_DISPOSABLE
Flag is used to indicate packets that contain frames that can be discarded by the decoder...
Definition: avcodec.h:1531
AVRational qoffset
Quantisation offset.
Definition: frame.h:262
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1691
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:368
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:734
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:369
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: avcodec.h:1009
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: encode.c:32
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
#define av_malloc(s)
AVOptions.
#define VE
Definition: libx265.c:535
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:388
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1669
Structure to hold side data for an AVFrame.
Definition: frame.h:201
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
uint8_t * data
Definition: avcodec.h:1480
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
char * x265_opts
Definition: libx265.c:49
int buffer_size
The size of the buffer to which the ratecontrol is applied, in bits.
Definition: avcodec.h:1164
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
uint32_t self_size
Must be set to the size of this data structure (that is, sizeof(AVRegionOfInterest)).
Definition: frame.h:225
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:392
#define av_log(a,...)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1512
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
int width
Definition: frame.h:353
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
const x265_api * api
Definition: libx265.c:42
static int libx265_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
Definition: libx265.c:378
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1648
const char * name
Name of the codec implementation.
Definition: avcodec.h:3499
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
static const AVCodecDefault defaults[]
Definition: amfenc_h264.c:361
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1486
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2431
common internal API header
static av_cold void libx265_encode_init_csp(AVCodec *codec)
Definition: libx265.c:524
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3513
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:378
#define FFMIN(a, b)
Definition: common.h:96
AVCodec ff_libx265_encoder
Definition: libx265.c:558
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
static av_cold int libx265_encode_init(AVCodecContext *avctx)
Definition: libx265.c:85
int width
picture width / height.
Definition: avcodec.h:1741
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:890
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2182
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Structure describing a single Region Of Interest.
Definition: frame.h:220
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1700
static av_cold int libx265_encode_set_roi(libx265Context *ctx, const AVFrame *frame, x265_picture *pic)
Definition: libx265.c:314
#define OFFSET(x)
Definition: libx265.c:534
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2827
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:523
if(ret)
char * preset
Definition: libx265.c:46
int av_dict_parse_string(AVDictionary **pm, const char *str, const char *key_val_sep, const char *pairs_sep, int flags)
Parse the key/value pairs list and add the parsed entries to a dictionary.
Definition: dict.c:180
This structure describes the bitrate properties of an encoded bitstream.
Definition: avcodec.h:1131
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:513
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
main external API structure.
Definition: avcodec.h:1568
uint8_t * data
Definition: frame.h:203
int extradata_size
Definition: avcodec.h:1670
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:387
Describe the class of an AVClass context structure.
Definition: log.h:67
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2196
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2189
static enum AVPixelFormat x265_csp_ten[]
Definition: libx265.c:485
Regions Of Interest, the data is an array of AVRegionOfInterest type, the number of array element is ...
Definition: frame.h:181
int roi_warned
If the encoder does not support ROI then warn the first time we encounter a frame with ROI side data...
Definition: libx265.c:55
#define snprintf
Definition: snprintf.h:34
char * tune
Definition: libx265.c:47
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:404
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:388
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:394
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:907
preset
Definition: vf_curves.c:46
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
common internal api header.
common internal and external API header
static enum AVPixelFormat x265_csp_twelve[]
Definition: libx265.c:502
Bi-dir predicted.
Definition: avutil.h:276
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2818
char * key
Definition: dict.h:86
int den
Denominator.
Definition: rational.h:60
AVCPBProperties * ff_add_cpb_side_data(AVCodecContext *avctx)
Add a CPB properties side data to an encoding context.
Definition: utils.c:1968
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:793
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:489
void * priv_data
Definition: avcodec.h:1595
static const AVCodecDefault x265_defaults[]
Definition: libx265.c:553
#define av_free(p)
char * value
Definition: dict.h:87
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
int avg_bitrate
Average bitrate of the stream, in bits per second.
Definition: avcodec.h:1155
static av_cold int libx265_encode_close(AVCodecContext *avctx)
Definition: libx265.c:73
static enum AVPixelFormat x265_csp_eight[]
Definition: libx265.c:473
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1479
int height
Definition: frame.h:353
#define av_freep(p)
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:70
#define AV_CODEC_FLAG_CLOSED_GOP
Definition: avcodec.h:921
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
This structure stores compressed data.
Definition: avcodec.h:1457
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1473
Predicted.
Definition: avutil.h:275
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2446
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
x265_encoder * encoder
Definition: libx265.c:40