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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 *x265_opts;
50 
51 static int is_keyframe(NalUnitType naltype)
52 {
53  switch (naltype) {
54  case NAL_UNIT_CODED_SLICE_BLA_W_LP:
55  case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
56  case NAL_UNIT_CODED_SLICE_BLA_N_LP:
57  case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
58  case NAL_UNIT_CODED_SLICE_IDR_N_LP:
59  case NAL_UNIT_CODED_SLICE_CRA:
60  return 1;
61  default:
62  return 0;
63  }
64 }
65 
67 {
68  libx265Context *ctx = avctx->priv_data;
69 
70  ctx->api->param_free(ctx->params);
71 
72  if (ctx->encoder)
73  ctx->api->encoder_close(ctx->encoder);
74 
75  return 0;
76 }
77 
79 {
80  libx265Context *ctx = avctx->priv_data;
81 
82  ctx->api = x265_api_get(av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth);
83  if (!ctx->api)
84  ctx->api = x265_api_get(0);
85 
86  ctx->params = ctx->api->param_alloc();
87  if (!ctx->params) {
88  av_log(avctx, AV_LOG_ERROR, "Could not allocate x265 param structure.\n");
89  return AVERROR(ENOMEM);
90  }
91 
92  if (ctx->api->param_default_preset(ctx->params, ctx->preset, ctx->tune) < 0) {
93  int i;
94 
95  av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", ctx->preset, ctx->tune);
96  av_log(avctx, AV_LOG_INFO, "Possible presets:");
97  for (i = 0; x265_preset_names[i]; i++)
98  av_log(avctx, AV_LOG_INFO, " %s", x265_preset_names[i]);
99 
100  av_log(avctx, AV_LOG_INFO, "\n");
101  av_log(avctx, AV_LOG_INFO, "Possible tunes:");
102  for (i = 0; x265_tune_names[i]; i++)
103  av_log(avctx, AV_LOG_INFO, " %s", x265_tune_names[i]);
104 
105  av_log(avctx, AV_LOG_INFO, "\n");
106 
107  return AVERROR(EINVAL);
108  }
109 
110  ctx->params->frameNumThreads = avctx->thread_count;
111  ctx->params->fpsNum = avctx->time_base.den;
112  ctx->params->fpsDenom = avctx->time_base.num * avctx->ticks_per_frame;
113  ctx->params->sourceWidth = avctx->width;
114  ctx->params->sourceHeight = avctx->height;
115  ctx->params->bEnablePsnr = !!(avctx->flags & AV_CODEC_FLAG_PSNR);
116 
117  if ((avctx->color_primaries <= AVCOL_PRI_BT2020 &&
119  (avctx->color_trc <= AVCOL_TRC_BT2020_12 &&
120  avctx->color_trc != AVCOL_TRC_UNSPECIFIED) ||
121  (avctx->colorspace <= AVCOL_SPC_BT2020_CL &&
122  avctx->colorspace != AVCOL_SPC_UNSPECIFIED)) {
123 
124  ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1;
125  ctx->params->vui.bEnableColorDescriptionPresentFlag = 1;
126 
127  // x265 validates the parameters internally
128  ctx->params->vui.colorPrimaries = avctx->color_primaries;
129  ctx->params->vui.transferCharacteristics = avctx->color_trc;
130  ctx->params->vui.matrixCoeffs = avctx->colorspace;
131  }
132 
133  if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0) {
134  char sar[12];
135  int sar_num, sar_den;
136 
137  av_reduce(&sar_num, &sar_den,
138  avctx->sample_aspect_ratio.num,
139  avctx->sample_aspect_ratio.den, 65535);
140  snprintf(sar, sizeof(sar), "%d:%d", sar_num, sar_den);
141  if (ctx->api->param_parse(ctx->params, "sar", sar) == X265_PARAM_BAD_VALUE) {
142  av_log(avctx, AV_LOG_ERROR, "Invalid SAR: %d:%d.\n", sar_num, sar_den);
143  return AVERROR_INVALIDDATA;
144  }
145  }
146 
147  switch (avctx->pix_fmt) {
148  case AV_PIX_FMT_YUV420P:
151  ctx->params->internalCsp = X265_CSP_I420;
152  break;
153  case AV_PIX_FMT_YUV422P:
156  ctx->params->internalCsp = X265_CSP_I422;
157  break;
158  case AV_PIX_FMT_GBRP:
159  case AV_PIX_FMT_GBRP10:
160  case AV_PIX_FMT_GBRP12:
161  ctx->params->vui.matrixCoeffs = AVCOL_SPC_RGB;
162  ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1;
163  ctx->params->vui.bEnableColorDescriptionPresentFlag = 1;
164  case AV_PIX_FMT_YUV444P:
167  ctx->params->internalCsp = X265_CSP_I444;
168  break;
169  case AV_PIX_FMT_GRAY8:
170  case AV_PIX_FMT_GRAY10:
171  case AV_PIX_FMT_GRAY12:
172  if (ctx->api->api_build_number < 85) {
173  av_log(avctx, AV_LOG_ERROR,
174  "libx265 version is %d, must be at least 85 for gray encoding.\n",
175  ctx->api->api_build_number);
176  return AVERROR_INVALIDDATA;
177  }
178  ctx->params->internalCsp = X265_CSP_I400;
179  break;
180  }
181 
182  if (ctx->crf >= 0) {
183  char crf[6];
184 
185  snprintf(crf, sizeof(crf), "%2.2f", ctx->crf);
186  if (ctx->api->param_parse(ctx->params, "crf", crf) == X265_PARAM_BAD_VALUE) {
187  av_log(avctx, AV_LOG_ERROR, "Invalid crf: %2.2f.\n", ctx->crf);
188  return AVERROR(EINVAL);
189  }
190  } else if (avctx->bit_rate > 0) {
191  ctx->params->rc.bitrate = avctx->bit_rate / 1000;
192  ctx->params->rc.rateControlMode = X265_RC_ABR;
193  }
194 
195  if (!(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER))
196  ctx->params->bRepeatHeaders = 1;
197 
198  if (ctx->x265_opts) {
199  AVDictionary *dict = NULL;
200  AVDictionaryEntry *en = NULL;
201 
202  if (!av_dict_parse_string(&dict, ctx->x265_opts, "=", ":", 0)) {
203  while ((en = av_dict_get(dict, "", en, AV_DICT_IGNORE_SUFFIX))) {
204  int parse_ret = ctx->api->param_parse(ctx->params, en->key, en->value);
205 
206  switch (parse_ret) {
207  case X265_PARAM_BAD_NAME:
208  av_log(avctx, AV_LOG_WARNING,
209  "Unknown option: %s.\n", en->key);
210  break;
211  case X265_PARAM_BAD_VALUE:
212  av_log(avctx, AV_LOG_WARNING,
213  "Invalid value for %s: %s.\n", en->key, en->value);
214  break;
215  default:
216  break;
217  }
218  }
219  av_dict_free(&dict);
220  }
221  }
222 
223  ctx->encoder = ctx->api->encoder_open(ctx->params);
224  if (!ctx->encoder) {
225  av_log(avctx, AV_LOG_ERROR, "Cannot open libx265 encoder.\n");
226  libx265_encode_close(avctx);
227  return AVERROR_INVALIDDATA;
228  }
229 
230  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
231  x265_nal *nal;
232  int nnal;
233 
234  avctx->extradata_size = ctx->api->encoder_headers(ctx->encoder, &nal, &nnal);
235  if (avctx->extradata_size <= 0) {
236  av_log(avctx, AV_LOG_ERROR, "Cannot encode headers.\n");
237  libx265_encode_close(avctx);
238  return AVERROR_INVALIDDATA;
239  }
240 
242  if (!avctx->extradata) {
243  av_log(avctx, AV_LOG_ERROR,
244  "Cannot allocate HEVC header of size %d.\n", avctx->extradata_size);
245  libx265_encode_close(avctx);
246  return AVERROR(ENOMEM);
247  }
248 
249  memcpy(avctx->extradata, nal[0].payload, avctx->extradata_size);
250  }
251 
252  return 0;
253 }
254 
256  const AVFrame *pic, int *got_packet)
257 {
258  libx265Context *ctx = avctx->priv_data;
259  x265_picture x265pic;
260  x265_picture x265pic_out = { 0 };
261  x265_nal *nal;
262  uint8_t *dst;
263  int payload = 0;
264  int nnal;
265  int ret;
266  int i;
267 
268  ctx->api->picture_init(ctx->params, &x265pic);
269 
270  if (pic) {
271  for (i = 0; i < 3; i++) {
272  x265pic.planes[i] = pic->data[i];
273  x265pic.stride[i] = pic->linesize[i];
274  }
275 
276  x265pic.pts = pic->pts;
277  x265pic.bitDepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth;
278 
279  x265pic.sliceType = pic->pict_type == AV_PICTURE_TYPE_I ?
280  (ctx->forced_idr ? X265_TYPE_IDR : X265_TYPE_I) :
281  pic->pict_type == AV_PICTURE_TYPE_P ? X265_TYPE_P :
282  pic->pict_type == AV_PICTURE_TYPE_B ? X265_TYPE_B :
283  X265_TYPE_AUTO;
284  }
285 
286  ret = ctx->api->encoder_encode(ctx->encoder, &nal, &nnal,
287  pic ? &x265pic : NULL, &x265pic_out);
288  if (ret < 0)
289  return AVERROR_EXTERNAL;
290 
291  if (!nnal)
292  return 0;
293 
294  for (i = 0; i < nnal; i++)
295  payload += nal[i].sizeBytes;
296 
297  ret = ff_alloc_packet(pkt, payload);
298  if (ret < 0) {
299  av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
300  return ret;
301  }
302  dst = pkt->data;
303 
304  for (i = 0; i < nnal; i++) {
305  memcpy(dst, nal[i].payload, nal[i].sizeBytes);
306  dst += nal[i].sizeBytes;
307 
308  if (is_keyframe(nal[i].type))
309  pkt->flags |= AV_PKT_FLAG_KEY;
310  }
311 
312  pkt->pts = x265pic_out.pts;
313  pkt->dts = x265pic_out.dts;
314 
315 #if FF_API_CODED_FRAME
317  switch (x265pic_out.sliceType) {
318  case X265_TYPE_IDR:
319  case X265_TYPE_I:
321  break;
322  case X265_TYPE_P:
324  break;
325  case X265_TYPE_B:
327  break;
328  }
330 #endif
331 
332  *got_packet = 1;
333  return 0;
334 }
335 
336 static const enum AVPixelFormat x265_csp_eight[] = {
343 };
344 
345 static const enum AVPixelFormat x265_csp_ten[] = {
357 };
358 
359 static const enum AVPixelFormat x265_csp_twelve[] = {
376 };
377 
379 {
380  if (x265_api_get(12))
381  codec->pix_fmts = x265_csp_twelve;
382  else if (x265_api_get(10))
383  codec->pix_fmts = x265_csp_ten;
384  else if (x265_api_get(8))
385  codec->pix_fmts = x265_csp_eight;
386 }
387 
388 #define OFFSET(x) offsetof(libx265Context, x)
389 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
390 static const AVOption options[] = {
391  { "crf", "set the x265 crf", OFFSET(crf), AV_OPT_TYPE_FLOAT, { .dbl = -1 }, -1, FLT_MAX, VE },
392  { "forced-idr", "if forcing keyframes, force them as IDR frames", OFFSET(forced_idr),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
393  { "preset", "set the x265 preset", OFFSET(preset), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
394  { "tune", "set the x265 tune parameter", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
395  { "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 },
396  { NULL }
397 };
398 
399 static const AVClass class = {
400  .class_name = "libx265",
401  .item_name = av_default_item_name,
402  .option = options,
404 };
405 
406 static const AVCodecDefault x265_defaults[] = {
407  { "b", "0" },
408  { NULL },
409 };
410 
412  .name = "libx265",
413  .long_name = NULL_IF_CONFIG_SMALL("libx265 H.265 / HEVC"),
414  .type = AVMEDIA_TYPE_VIDEO,
415  .id = AV_CODEC_ID_HEVC,
416  .init = libx265_encode_init,
417  .init_static_data = libx265_encode_init_csp,
418  .encode2 = libx265_encode_frame,
419  .close = libx265_encode_close,
420  .priv_data_size = sizeof(libx265Context),
421  .priv_class = &class,
422  .defaults = x265_defaults,
424 };
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:439
#define NULL
Definition: coverity.c:32
static const AVOption options[]
Definition: libx265.c:390
#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:2333
This structure describes decoded (raw) audio or video data.
Definition: frame.h:187
AVOption.
Definition: opt.h:246
static int is_keyframe(NalUnitType naltype)
Definition: libx265.c:51
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1797
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
float crf
Definition: libx265.c:44
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
int num
Numerator.
Definition: rational.h:59
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:367
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:2143
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1960
x265_param * params
Definition: libx265.c:41
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:355
static AVPacket pkt
#define AV_CODEC_CAP_AUTO_THREADS
Codec supports avctx->thread_count == 0 (auto).
Definition: avcodec.h:1069
AVCodec.
Definition: avcodec.h:3681
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB)
Definition: pixfmt.h:452
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1869
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:333
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:334
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:1019
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:389
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:271
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1847
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:1657
char * x265_opts
Definition: libx265.c:48
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
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:356
#define av_log(a,...)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1689
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
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:255
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
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:1827
const char * name
Name of the codec implementation.
Definition: avcodec.h:3688
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:354
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1663
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
common internal API header
static av_cold void libx265_encode_init_csp(AVCodec *codec)
Definition: libx265.c:378
enum AVPixelFormat * pix_fmts
array of supported pixel formats, or NULL if unknown, array is terminated by -1
Definition: avcodec.h:3702
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:261
AVCodec ff_libx265_encoder
Definition: libx265.c:411
static av_cold int libx265_encode_init(AVCodecContext *avctx)
Definition: libx265.c:78
int width
picture width / height.
Definition: avcodec.h:1919
AVFormatContext * ctx
Definition: movenc.c:48
#define AV_CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
Definition: avcodec.h:900
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:2448
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:1878
#define OFFSET(x)
Definition: libx265.c:388
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:3161
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
#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:218
main external API structure.
Definition: avcodec.h:1732
GLint GLenum type
Definition: opengl_enc.c:105
int extradata_size
Definition: avcodec.h:1848
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:351
Describe the class of an AVClass context structure.
Definition: log.h:67
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:2462
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:2455
static enum AVPixelFormat x265_csp_ten[]
Definition: libx265.c:345
#define snprintf
Definition: snprintf.h:34
char * tune
Definition: libx265.c:47
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:368
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:352
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:358
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:201
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:917
ITU-R BT2020 constant luminance system.
Definition: pixfmt.h:463
preset
Definition: vf_curves.c:46
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
Y , 8bpp.
Definition: pixfmt.h:70
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:83
common internal api header.
common internal and external API header
static enum AVPixelFormat x265_csp_twelve[]
Definition: libx265.c:359
Bi-dir predicted.
Definition: avutil.h:276
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:3152
char * key
Definition: dict.h:86
int den
Denominator.
Definition: rational.h:60
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:769
void * priv_data
Definition: avcodec.h:1774
static const AVCodecDefault x265_defaults[]
Definition: libx265.c:406
char * value
Definition: dict.h:87
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
attribute_deprecated int ff_alloc_packet(AVPacket *avpkt, int size)
Definition: utils.c:1777
static av_cold int libx265_encode_close(AVCodecContext *avctx)
Definition: libx265.c:66
static enum AVPixelFormat x265_csp_eight[]
Definition: libx265.c:336
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1656
ITU-R BT2020.
Definition: pixfmt.h:411
#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
static const AVCodecDefault defaults[]
Definition: dcaenc.c:1095
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:60
This structure stores compressed data.
Definition: avcodec.h:1634
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1650
Predicted.
Definition: avutil.h:275
x265_encoder * encoder
Definition: libx265.c:40