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;
51 
52 static int is_keyframe(NalUnitType naltype)
53 {
54  switch (naltype) {
55  case NAL_UNIT_CODED_SLICE_BLA_W_LP:
56  case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
57  case NAL_UNIT_CODED_SLICE_BLA_N_LP:
58  case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
59  case NAL_UNIT_CODED_SLICE_IDR_N_LP:
60  case NAL_UNIT_CODED_SLICE_CRA:
61  return 1;
62  default:
63  return 0;
64  }
65 }
66 
68 {
69  libx265Context *ctx = avctx->priv_data;
70 
71  ctx->api->param_free(ctx->params);
72 
73  if (ctx->encoder)
74  ctx->api->encoder_close(ctx->encoder);
75 
76  return 0;
77 }
78 
80 {
81  libx265Context *ctx = avctx->priv_data;
82  AVCPBProperties *cpb_props = NULL;
83 
84  ctx->api = x265_api_get(av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth);
85  if (!ctx->api)
86  ctx->api = x265_api_get(0);
87 
88  ctx->params = ctx->api->param_alloc();
89  if (!ctx->params) {
90  av_log(avctx, AV_LOG_ERROR, "Could not allocate x265 param structure.\n");
91  return AVERROR(ENOMEM);
92  }
93 
94  if (ctx->api->param_default_preset(ctx->params, ctx->preset, ctx->tune) < 0) {
95  int i;
96 
97  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", ctx->preset, ctx->tune);
98  av_log(avctx, AV_LOG_INFO, "Possible presets:");
99  for (i = 0; x265_preset_names[i]; i++)
100  av_log(avctx, AV_LOG_INFO, " %s", x265_preset_names[i]);
101 
102  av_log(avctx, AV_LOG_INFO, "\n");
103  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
104  for (i = 0; x265_tune_names[i]; i++)
105  av_log(avctx, AV_LOG_INFO, " %s", x265_tune_names[i]);
106 
107  av_log(avctx, AV_LOG_INFO, "\n");
108 
109  return AVERROR(EINVAL);
110  }
111 
112  ctx->params->frameNumThreads = avctx->thread_count;
113  if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
114  ctx->params->fpsNum = avctx->framerate.num;
115  ctx->params->fpsDenom = avctx->framerate.den;
116  } else {
117  ctx->params->fpsNum = avctx->time_base.den;
118  ctx->params->fpsDenom = avctx->time_base.num * avctx->ticks_per_frame;
119  }
120  ctx->params->sourceWidth = avctx->width;
121  ctx->params->sourceHeight = avctx->height;
122  ctx->params->bEnablePsnr = !!(avctx->flags & AV_CODEC_FLAG_PSNR);
123  ctx->params->bOpenGOP = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
124 
125  /* Tune the CTU size based on input resolution. */
126  if (ctx->params->sourceWidth < 64 || ctx->params->sourceHeight < 64)
127  ctx->params->maxCUSize = 32;
128  if (ctx->params->sourceWidth < 32 || ctx->params->sourceHeight < 32)
129  ctx->params->maxCUSize = 16;
130  if (ctx->params->sourceWidth < 16 || ctx->params->sourceHeight < 16) {
131  av_log(avctx, AV_LOG_ERROR, "Image size is too small (%dx%d).\n",
132  ctx->params->sourceWidth, ctx->params->sourceHeight);
133  return AVERROR(EINVAL);
134  }
135 
136 
137  ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1;
138 
139  ctx->params->vui.bEnableVideoFullRangeFlag = avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
140  avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
141  avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
142  avctx->color_range == AVCOL_RANGE_JPEG;
143 
144  if ((avctx->color_primaries <= AVCOL_PRI_SMPTE432 &&
146  (avctx->color_trc <= AVCOL_TRC_ARIB_STD_B67 &&
147  avctx->color_trc != AVCOL_TRC_UNSPECIFIED) ||
148  (avctx->colorspace <= AVCOL_SPC_ICTCP &&
149  avctx->colorspace != AVCOL_SPC_UNSPECIFIED)) {
150 
151  ctx->params->vui.bEnableColorDescriptionPresentFlag = 1;
152 
153  // x265 validates the parameters internally
154  ctx->params->vui.colorPrimaries = avctx->color_primaries;
155  ctx->params->vui.transferCharacteristics = avctx->color_trc;
156  ctx->params->vui.matrixCoeffs = avctx->colorspace;
157  }
158 
159  if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0) {
160  char sar[12];
161  int sar_num, sar_den;
162 
163  av_reduce(&sar_num, &sar_den,
164  avctx->sample_aspect_ratio.num,
165  avctx->sample_aspect_ratio.den, 65535);
166  snprintf(sar, sizeof(sar), "%d:%d", sar_num, sar_den);
167  if (ctx->api->param_parse(ctx->params, "sar", sar) == X265_PARAM_BAD_VALUE) {
168  av_log(avctx, AV_LOG_ERROR, "Invalid SAR: %d:%d.\n", sar_num, sar_den);
169  return AVERROR_INVALIDDATA;
170  }
171  }
172 
173  switch (avctx->pix_fmt) {
174  case AV_PIX_FMT_YUV420P:
177  ctx->params->internalCsp = X265_CSP_I420;
178  break;
179  case AV_PIX_FMT_YUV422P:
182  ctx->params->internalCsp = X265_CSP_I422;
183  break;
184  case AV_PIX_FMT_GBRP:
185  case AV_PIX_FMT_GBRP10:
186  case AV_PIX_FMT_GBRP12:
187  ctx->params->vui.matrixCoeffs = AVCOL_SPC_RGB;
188  ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1;
189  ctx->params->vui.bEnableColorDescriptionPresentFlag = 1;
190  case AV_PIX_FMT_YUV444P:
193  ctx->params->internalCsp = X265_CSP_I444;
194  break;
195  case AV_PIX_FMT_GRAY8:
196  case AV_PIX_FMT_GRAY10:
197  case AV_PIX_FMT_GRAY12:
198  if (ctx->api->api_build_number < 85) {
199  av_log(avctx, AV_LOG_ERROR,
200  "libx265 version is %d, must be at least 85 for gray encoding.\n",
201  ctx->api->api_build_number);
202  return AVERROR_INVALIDDATA;
203  }
204  ctx->params->internalCsp = X265_CSP_I400;
205  break;
206  }
207 
208  if (ctx->crf >= 0) {
209  char crf[6];
210 
211  snprintf(crf, sizeof(crf), "%2.2f", ctx->crf);
212  if (ctx->api->param_parse(ctx->params, "crf", crf) == X265_PARAM_BAD_VALUE) {
213  av_log(avctx, AV_LOG_ERROR, "Invalid crf: %2.2f.\n", ctx->crf);
214  return AVERROR(EINVAL);
215  }
216  } else if (avctx->bit_rate > 0) {
217  ctx->params->rc.bitrate = avctx->bit_rate / 1000;
218  ctx->params->rc.rateControlMode = X265_RC_ABR;
219  }
220 
221  ctx->params->rc.vbvBufferSize = avctx->rc_buffer_size / 1000;
222  ctx->params->rc.vbvMaxBitrate = avctx->rc_max_rate / 1000;
223 
224  cpb_props = ff_add_cpb_side_data(avctx);
225  if (!cpb_props)
226  return AVERROR(ENOMEM);
227  cpb_props->buffer_size = ctx->params->rc.vbvBufferSize * 1000;
228  cpb_props->max_bitrate = ctx->params->rc.vbvMaxBitrate * 1000;
229  cpb_props->avg_bitrate = ctx->params->rc.bitrate * 1000;
230 
231  if (!(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER))
232  ctx->params->bRepeatHeaders = 1;
233 
234  if (ctx->x265_opts) {
235  AVDictionary *dict = NULL;
236  AVDictionaryEntry *en = NULL;
237 
238  if (!av_dict_parse_string(&dict, ctx->x265_opts, "=", ":", 0)) {
239  while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
240  int parse_ret = ctx->api->param_parse(ctx->params, en->key, en->value);
241 
242  switch (parse_ret) {
243  case X265_PARAM_BAD_NAME:
244  av_log(avctx, AV_LOG_WARNING,
245  "Unknown option: %s.\n", en->key);
246  break;
247  case X265_PARAM_BAD_VALUE:
248  av_log(avctx, AV_LOG_WARNING,
249  "Invalid value for %s: %s.\n", en->key, en->value);
250  break;
251  default:
252  break;
253  }
254  }
255  av_dict_free(&dict);
256  }
257  }
258 
259  if (ctx->params->rc.vbvBufferSize && avctx->rc_initial_buffer_occupancy > 1000 &&
260  ctx->params->rc.vbvBufferInit == 0.9) {
261  ctx->params->rc.vbvBufferInit = (float)avctx->rc_initial_buffer_occupancy / 1000;
262  }
263 
264  if (ctx->profile) {
265  if (ctx->api->param_apply_profile(ctx->params, ctx->profile) < 0) {
266  int i;
267  av_log(avctx, AV_LOG_ERROR, "Invalid or incompatible profile set: %s.\n", ctx->profile);
268  av_log(avctx, AV_LOG_INFO, "Possible profiles:");
269  for (i = 0; x265_profile_names[i]; i++)
270  av_log(avctx, AV_LOG_INFO, " %s", x265_profile_names[i]);
271  av_log(avctx, AV_LOG_INFO, "\n");
272  return AVERROR(EINVAL);
273  }
274  }
275 
276  ctx->encoder = ctx->api->encoder_open(ctx->params);
277  if (!ctx->encoder) {
278  av_log(avctx, AV_LOG_ERROR, "Cannot open libx265 encoder.\n");
279  libx265_encode_close(avctx);
280  return AVERROR_INVALIDDATA;
281  }
282 
283  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
284  x265_nal *nal;
285  int nnal;
286 
287  avctx->extradata_size = ctx->api->encoder_headers(ctx->encoder, &nal, &nnal);
288  if (avctx->extradata_size <= 0) {
289  av_log(avctx, AV_LOG_ERROR, "Cannot encode headers.\n");
290  libx265_encode_close(avctx);
291  return AVERROR_INVALIDDATA;
292  }
293 
295  if (!avctx->extradata) {
296  av_log(avctx, AV_LOG_ERROR,
297  "Cannot allocate HEVC header of size %d.\n", avctx->extradata_size);
298  libx265_encode_close(avctx);
299  return AVERROR(ENOMEM);
300  }
301 
302  memcpy(avctx->extradata, nal[0].payload, avctx->extradata_size);
303  }
304 
305  return 0;
306 }
307 
308 static av_cold int libx265_encode_set_roi(libx265Context *ctx, const AVFrame *frame, x265_picture* pic)
309 {
311  if (sd) {
312  if (ctx->params->rc.aqMode == X265_AQ_NONE) {
313  av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
314  } else {
315  /* 8x8 block when qg-size is 8, 16*16 block otherwise. */
316  int mb_size = (ctx->params->rc.qgSize == 8) ? 8 : 16;
317  int mbx = (frame->width + mb_size - 1) / mb_size;
318  int mby = (frame->height + mb_size - 1) / mb_size;
319  int nb_rois;
320  AVRegionOfInterest *roi;
321  float *qoffsets; /* will be freed after encode is called. */
322  qoffsets = av_mallocz_array(mbx * mby, sizeof(*qoffsets));
323  if (!qoffsets)
324  return AVERROR(ENOMEM);
325 
326  nb_rois = sd->size / sizeof(AVRegionOfInterest);
327  roi = (AVRegionOfInterest*)sd->data;
328  for (int count = 0; count < nb_rois; count++) {
329  int starty = FFMIN(mby, roi->top / mb_size);
330  int endy = FFMIN(mby, (roi->bottom + mb_size - 1)/ mb_size);
331  int startx = FFMIN(mbx, roi->left / mb_size);
332  int endx = FFMIN(mbx, (roi->right + mb_size - 1)/ mb_size);
333  float qoffset;
334 
335  if (roi->self_size == 0) {
336  av_free(qoffsets);
337  av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.self_size must be set to sizeof(AVRegionOfInterest).\n");
338  return AVERROR(EINVAL);
339  }
340 
341  if (roi->qoffset.den == 0) {
342  av_free(qoffsets);
343  av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.qoffset.den must not be zero.\n");
344  return AVERROR(EINVAL);
345  }
346  qoffset = roi->qoffset.num * 1.0f / roi->qoffset.den;
347  qoffset = av_clipf(qoffset, -1.0f, 1.0f);
348 
349  /* qp range of x265 is from 0 to 51, just choose 25 as the scale value,
350  * so the range of final qoffset is [-25.0, 25.0].
351  */
352  qoffset = qoffset * 25;
353 
354  for (int y = starty; y < endy; y++)
355  for (int x = startx; x < endx; x++)
356  qoffsets[x + y*mbx] = qoffset;
357 
358  roi = (AVRegionOfInterest*)((char*)roi + roi->self_size);
359  }
360 
361  pic->quantOffsets = qoffsets;
362  }
363  }
364  return 0;
365 }
366 
368  const AVFrame *pic, int *got_packet)
369 {
370  libx265Context *ctx = avctx->priv_data;
371  x265_picture x265pic;
372  x265_picture x265pic_out = { 0 };
373  x265_nal *nal;
374  uint8_t *dst;
375  int payload = 0;
376  int nnal;
377  int ret;
378  int i;
379 
380  ctx->api->picture_init(ctx->params, &x265pic);
381 
382  if (pic) {
383  for (i = 0; i < 3; i++) {
384  x265pic.planes[i] = pic->data[i];
385  x265pic.stride[i] = pic->linesize[i];
386  }
387 
388  x265pic.pts = pic->pts;
389  x265pic.bitDepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth;
390 
391  x265pic.sliceType = pic->pict_type == AV_PICTURE_TYPE_I ?
392  (ctx->forced_idr ? X265_TYPE_IDR : X265_TYPE_I) :
393  pic->pict_type == AV_PICTURE_TYPE_P ? X265_TYPE_P :
394  pic->pict_type == AV_PICTURE_TYPE_B ? X265_TYPE_B :
395  X265_TYPE_AUTO;
396 
397  ret = libx265_encode_set_roi(ctx, pic, &x265pic);
398  if (ret < 0)
399  return ret;
400  }
401 
402  ret = ctx->api->encoder_encode(ctx->encoder, &nal, &nnal,
403  pic ? &x265pic : NULL, &x265pic_out);
404 
405  av_freep(&x265pic.quantOffsets);
406 
407  if (ret < 0)
408  return AVERROR_EXTERNAL;
409 
410  if (!nnal)
411  return 0;
412 
413  for (i = 0; i < nnal; i++)
414  payload += nal[i].sizeBytes;
415 
416  ret = ff_alloc_packet2(avctx, pkt, payload, payload);
417  if (ret < 0) {
418  av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
419  return ret;
420  }
421  dst = pkt->data;
422 
423  for (i = 0; i < nnal; i++) {
424  memcpy(dst, nal[i].payload, nal[i].sizeBytes);
425  dst += nal[i].sizeBytes;
426 
427  if (is_keyframe(nal[i].type))
428  pkt->flags |= AV_PKT_FLAG_KEY;
429  }
430 
431  pkt->pts = x265pic_out.pts;
432  pkt->dts = x265pic_out.dts;
433 
434 #if FF_API_CODED_FRAME
436  switch (x265pic_out.sliceType) {
437  case X265_TYPE_IDR:
438  case X265_TYPE_I:
440  break;
441  case X265_TYPE_P:
443  break;
444  case X265_TYPE_B:
446  break;
447  }
449 #endif
450 
451 #if X265_BUILD >= 130
452  if (x265pic_out.sliceType == X265_TYPE_B)
453 #else
454  if (x265pic_out.frameData.sliceType == 'b')
455 #endif
457 
458  *got_packet = 1;
459  return 0;
460 }
461 
462 static const enum AVPixelFormat x265_csp_eight[] = {
472 };
473 
474 static const enum AVPixelFormat x265_csp_ten[] = {
489 };
490 
491 static const enum AVPixelFormat x265_csp_twelve[] = {
511 };
512 
514 {
515  if (x265_api_get(12))
516  codec->pix_fmts = x265_csp_twelve;
517  else if (x265_api_get(10))
518  codec->pix_fmts = x265_csp_ten;
519  else if (x265_api_get(8))
520  codec->pix_fmts = x265_csp_eight;
521 }
522 
523 #define OFFSET(x) offsetof(libx265Context, x)
524 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
525 static const AVOption options[] = {
526  { "crf", "set the x265 crf", OFFSET(crf), AV_OPT_TYPE_FLOAT, { .dbl = -1 }, -1, FLT_MAX, VE },
527  { "forced-idr", "if forcing keyframes, force them as IDR frames", OFFSET(forced_idr),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
528  { "preset", "set the x265 preset", OFFSET(preset), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
529  { "tune", "set the x265 tune parameter", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
530  { "profile", "set the x265 profile", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
531  { "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 },
532  { NULL }
533 };
534 
535 static const AVClass class = {
536  .class_name = "libx265",
537  .item_name = av_default_item_name,
538  .option = options,
540 };
541 
542 static const AVCodecDefault x265_defaults[] = {
543  { "b", "0" },
544  { NULL },
545 };
546 
548  .name = "libx265",
549  .long_name = NULL_IF_CONFIG_SMALL("libx265 H.265 / HEVC"),
550  .type = AVMEDIA_TYPE_VIDEO,
551  .id = AV_CODEC_ID_HEVC,
552  .init = libx265_encode_init,
553  .init_static_data = libx265_encode_init_csp,
554  .encode2 = libx265_encode_frame,
555  .close = libx265_encode_close,
556  .priv_data_size = sizeof(libx265Context),
557  .priv_class = &class,
558  .defaults = x265_defaults,
560  .wrapper_name = "libx265",
561 };
char * profile
Definition: libx265.c:48
#define NULL
Definition: coverity.c:32
static const AVOption options[]
Definition: libx265.c:525
AVRational framerate
Definition: avcodec.h:3101
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
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:268
AVOption.
Definition: opt.h:246
static int is_keyframe(NalUnitType naltype)
Definition: libx265.c:52
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:1615
#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:1134
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2467
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:2196
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:1944
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1775
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:1049
AVCodec.
Definition: avcodec.h:3477
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
Definition: pixfmt.h:497
#define AV_PKT_FLAG_DISPOSABLE
Flag is used to indicate packets that contain frames that can be discarded by the decoder...
Definition: avcodec.h:1528
AVRational qoffset
Definition: frame.h:235
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1688
#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:1006
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 f(width, name)
Definition: cbs_vp9.c:255
#define VE
Definition: libx265.c:524
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:361
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1666
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:1477
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:1161
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
Definition: frame.h:230
#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:1509
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:260
int width
Definition: frame.h:326
#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:367
#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:1645
const char * name
Name of the codec implementation.
Definition: avcodec.h:3484
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:390
static const AVCodecDefault defaults[]
Definition: amfenc_h264.c:361
GLsizei count
Definition: opengl_enc.c:108
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1483
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:2424
common internal API header
static av_cold void libx265_encode_init_csp(AVCodec *codec)
Definition: libx265.c:513
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3498
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:351
#define FFMIN(a, b)
Definition: common.h:96
AVCodec ff_libx265_encoder
Definition: libx265.c:547
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:79
int width
picture width / height.
Definition: avcodec.h:1738
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:887
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2175
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 to hold Region Of Interest.
Definition: frame.h:229
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1697
static av_cold int libx265_encode_set_roi(libx265Context *ctx, const AVFrame *frame, x265_picture *pic)
Definition: libx265.c:308
#define OFFSET(x)
Definition: libx265.c:523
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2820
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:522
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:1128
ITU-R BT.2100-0, ICtCp.
Definition: pixfmt.h:512
#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:299
main external API structure.
Definition: avcodec.h:1565
uint8_t * data
Definition: frame.h:203
int extradata_size
Definition: avcodec.h:1667
#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:2189
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2182
static enum AVPixelFormat x265_csp_ten[]
Definition: libx265.c:474
Regions Of Interest, the data is an array of AVRegionOfInterest type, the number of array element is ...
Definition: frame.h:181
#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:282
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:904
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:491
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:2811
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:1946
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:790
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:488
void * priv_data
Definition: avcodec.h:1592
static const AVCodecDefault x265_defaults[]
Definition: libx265.c:542
#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:1152
static av_cold int libx265_encode_close(AVCodecContext *avctx)
Definition: libx265.c:67
static enum AVPixelFormat x265_csp_eight[]
Definition: libx265.c:462
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1476
int height
Definition: frame.h:326
#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:918
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:1454
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1470
for(j=16;j >0;--j)
Predicted.
Definition: avutil.h:275
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2439
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
x265_encoder * encoder
Definition: libx265.c:40