FFmpeg
videotoolboxenc.c
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1 /*
2  * copyright (c) 2015 Rick Kern <kernrj@gmail.com>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <VideoToolbox/VideoToolbox.h>
22 #include <CoreVideo/CoreVideo.h>
23 #include <CoreMedia/CoreMedia.h>
24 #include <TargetConditionals.h>
25 #include <Availability.h>
26 #include "avcodec.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/avassert.h"
29 #include "libavutil/avstring.h"
30 #include "libavcodec/avcodec.h"
31 #include "libavutil/pixdesc.h"
32 #include "libavutil/hwcontext_videotoolbox.h"
33 #include "codec_internal.h"
34 #include "internal.h"
35 #include <pthread.h>
36 #include "atsc_a53.h"
37 #include "encode.h"
38 #include "h264.h"
39 #include "h264_sei.h"
40 #include <dlfcn.h>
41 
42 #if !HAVE_KCMVIDEOCODECTYPE_HEVC
43 enum { kCMVideoCodecType_HEVC = 'hvc1' };
44 #endif
45 
46 #if !HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA
47 enum { kCMVideoCodecType_HEVCWithAlpha = 'muxa' };
48 #endif
49 
50 #if !HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE
51 enum { kCVPixelFormatType_420YpCbCr10BiPlanarFullRange = 'xf20' };
52 enum { kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange = 'x420' };
53 #endif
54 
55 #ifndef TARGET_CPU_ARM64
56 # define TARGET_CPU_ARM64 0
57 #endif
58 
59 typedef OSStatus (*getParameterSetAtIndex)(CMFormatDescriptionRef videoDesc,
60  size_t parameterSetIndex,
61  const uint8_t **parameterSetPointerOut,
62  size_t *parameterSetSizeOut,
63  size_t *parameterSetCountOut,
64  int *NALUnitHeaderLengthOut);
65 
66 //These symbols may not be present
67 static struct{
68  CFStringRef kCVImageBufferColorPrimaries_ITU_R_2020;
69  CFStringRef kCVImageBufferTransferFunction_ITU_R_2020;
70  CFStringRef kCVImageBufferYCbCrMatrix_ITU_R_2020;
71 
72  CFStringRef kVTCompressionPropertyKey_H264EntropyMode;
73  CFStringRef kVTH264EntropyMode_CAVLC;
74  CFStringRef kVTH264EntropyMode_CABAC;
75 
76  CFStringRef kVTProfileLevel_H264_Baseline_4_0;
77  CFStringRef kVTProfileLevel_H264_Baseline_4_2;
78  CFStringRef kVTProfileLevel_H264_Baseline_5_0;
79  CFStringRef kVTProfileLevel_H264_Baseline_5_1;
80  CFStringRef kVTProfileLevel_H264_Baseline_5_2;
81  CFStringRef kVTProfileLevel_H264_Baseline_AutoLevel;
82  CFStringRef kVTProfileLevel_H264_Main_4_2;
83  CFStringRef kVTProfileLevel_H264_Main_5_1;
84  CFStringRef kVTProfileLevel_H264_Main_5_2;
85  CFStringRef kVTProfileLevel_H264_Main_AutoLevel;
86  CFStringRef kVTProfileLevel_H264_High_3_0;
87  CFStringRef kVTProfileLevel_H264_High_3_1;
88  CFStringRef kVTProfileLevel_H264_High_3_2;
89  CFStringRef kVTProfileLevel_H264_High_4_0;
90  CFStringRef kVTProfileLevel_H264_High_4_1;
91  CFStringRef kVTProfileLevel_H264_High_4_2;
92  CFStringRef kVTProfileLevel_H264_High_5_1;
93  CFStringRef kVTProfileLevel_H264_High_5_2;
94  CFStringRef kVTProfileLevel_H264_High_AutoLevel;
95  CFStringRef kVTProfileLevel_H264_Extended_5_0;
96  CFStringRef kVTProfileLevel_H264_Extended_AutoLevel;
97 
98  CFStringRef kVTProfileLevel_HEVC_Main_AutoLevel;
99  CFStringRef kVTProfileLevel_HEVC_Main10_AutoLevel;
100 
101  CFStringRef kVTCompressionPropertyKey_RealTime;
102  CFStringRef kVTCompressionPropertyKey_TargetQualityForAlpha;
103  CFStringRef kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality;
104 
105  CFStringRef kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder;
106  CFStringRef kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder;
107 
108  getParameterSetAtIndex CMVideoFormatDescriptionGetHEVCParameterSetAtIndex;
109 } compat_keys;
110 
111 #define GET_SYM(symbol, defaultVal) \
112 do{ \
113  CFStringRef* handle = (CFStringRef*)dlsym(RTLD_DEFAULT, #symbol); \
114  if(!handle) \
115  compat_keys.symbol = CFSTR(defaultVal); \
116  else \
117  compat_keys.symbol = *handle; \
118 }while(0)
119 
120 static pthread_once_t once_ctrl = PTHREAD_ONCE_INIT;
121 
122 static void loadVTEncSymbols(){
123  compat_keys.CMVideoFormatDescriptionGetHEVCParameterSetAtIndex =
124  (getParameterSetAtIndex)dlsym(
125  RTLD_DEFAULT,
126  "CMVideoFormatDescriptionGetHEVCParameterSetAtIndex"
127  );
128 
129  GET_SYM(kCVImageBufferColorPrimaries_ITU_R_2020, "ITU_R_2020");
130  GET_SYM(kCVImageBufferTransferFunction_ITU_R_2020, "ITU_R_2020");
131  GET_SYM(kCVImageBufferYCbCrMatrix_ITU_R_2020, "ITU_R_2020");
132 
133  GET_SYM(kVTCompressionPropertyKey_H264EntropyMode, "H264EntropyMode");
134  GET_SYM(kVTH264EntropyMode_CAVLC, "CAVLC");
135  GET_SYM(kVTH264EntropyMode_CABAC, "CABAC");
136 
137  GET_SYM(kVTProfileLevel_H264_Baseline_4_0, "H264_Baseline_4_0");
138  GET_SYM(kVTProfileLevel_H264_Baseline_4_2, "H264_Baseline_4_2");
139  GET_SYM(kVTProfileLevel_H264_Baseline_5_0, "H264_Baseline_5_0");
140  GET_SYM(kVTProfileLevel_H264_Baseline_5_1, "H264_Baseline_5_1");
141  GET_SYM(kVTProfileLevel_H264_Baseline_5_2, "H264_Baseline_5_2");
142  GET_SYM(kVTProfileLevel_H264_Baseline_AutoLevel, "H264_Baseline_AutoLevel");
143  GET_SYM(kVTProfileLevel_H264_Main_4_2, "H264_Main_4_2");
144  GET_SYM(kVTProfileLevel_H264_Main_5_1, "H264_Main_5_1");
145  GET_SYM(kVTProfileLevel_H264_Main_5_2, "H264_Main_5_2");
146  GET_SYM(kVTProfileLevel_H264_Main_AutoLevel, "H264_Main_AutoLevel");
147  GET_SYM(kVTProfileLevel_H264_High_3_0, "H264_High_3_0");
148  GET_SYM(kVTProfileLevel_H264_High_3_1, "H264_High_3_1");
149  GET_SYM(kVTProfileLevel_H264_High_3_2, "H264_High_3_2");
150  GET_SYM(kVTProfileLevel_H264_High_4_0, "H264_High_4_0");
151  GET_SYM(kVTProfileLevel_H264_High_4_1, "H264_High_4_1");
152  GET_SYM(kVTProfileLevel_H264_High_4_2, "H264_High_4_2");
153  GET_SYM(kVTProfileLevel_H264_High_5_1, "H264_High_5_1");
154  GET_SYM(kVTProfileLevel_H264_High_5_2, "H264_High_5_2");
155  GET_SYM(kVTProfileLevel_H264_High_AutoLevel, "H264_High_AutoLevel");
156  GET_SYM(kVTProfileLevel_H264_Extended_5_0, "H264_Extended_5_0");
157  GET_SYM(kVTProfileLevel_H264_Extended_AutoLevel, "H264_Extended_AutoLevel");
158 
159  GET_SYM(kVTProfileLevel_HEVC_Main_AutoLevel, "HEVC_Main_AutoLevel");
160  GET_SYM(kVTProfileLevel_HEVC_Main10_AutoLevel, "HEVC_Main10_AutoLevel");
161 
162  GET_SYM(kVTCompressionPropertyKey_RealTime, "RealTime");
163  GET_SYM(kVTCompressionPropertyKey_TargetQualityForAlpha,
164  "TargetQualityForAlpha");
165  GET_SYM(kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality,
166  "PrioritizeEncodingSpeedOverQuality");
167 
168  GET_SYM(kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder,
169  "EnableHardwareAcceleratedVideoEncoder");
170  GET_SYM(kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder,
171  "RequireHardwareAcceleratedVideoEncoder");
172 }
173 
174 typedef enum VT_H264Profile {
175  H264_PROF_AUTO,
176  H264_PROF_BASELINE,
177  H264_PROF_MAIN,
178  H264_PROF_HIGH,
179  H264_PROF_EXTENDED,
180  H264_PROF_COUNT
181 } VT_H264Profile;
182 
183 typedef enum VTH264Entropy{
184  VT_ENTROPY_NOT_SET,
185  VT_CAVLC,
186  VT_CABAC
187 } VTH264Entropy;
188 
189 typedef enum VT_HEVCProfile {
190  HEVC_PROF_AUTO,
191  HEVC_PROF_MAIN,
192  HEVC_PROF_MAIN10,
193  HEVC_PROF_COUNT
194 } VT_HEVCProfile;
195 
196 static const uint8_t start_code[] = { 0, 0, 0, 1 };
197 
198 typedef struct ExtraSEI {
199  void *data;
200  size_t size;
201 } ExtraSEI;
202 
203 typedef struct BufNode {
204  CMSampleBufferRef cm_buffer;
205  ExtraSEI *sei;
206  struct BufNode* next;
207  int error;
208 } BufNode;
209 
210 typedef struct VTEncContext {
211  AVClass *class;
212  enum AVCodecID codec_id;
213  VTCompressionSessionRef session;
214  CFStringRef ycbcr_matrix;
215  CFStringRef color_primaries;
216  CFStringRef transfer_function;
217  getParameterSetAtIndex get_param_set_func;
218 
219  pthread_mutex_t lock;
220  pthread_cond_t cv_sample_sent;
221 
222  int async_error;
223 
224  BufNode *q_head;
225  BufNode *q_tail;
226 
227  int64_t frame_ct_out;
228  int64_t frame_ct_in;
229 
230  int64_t first_pts;
231  int64_t dts_delta;
232 
233  int64_t profile;
234  int level;
235  int entropy;
236  int realtime;
237  int frames_before;
238  int frames_after;
239 
240  int allow_sw;
241  int require_sw;
242  double alpha_quality;
243  int prio_speed;
244 
245  bool flushing;
246  int has_b_frames;
247  bool warned_color_range;
248 
249  /* can't be bool type since AVOption will access it as int */
250  int a53_cc;
251 } VTEncContext;
252 
253 static int vtenc_populate_extradata(AVCodecContext *avctx,
254  CMVideoCodecType codec_type,
255  CFStringRef profile_level,
256  CFNumberRef gamma_level,
257  CFDictionaryRef enc_info,
258  CFDictionaryRef pixel_buffer_info);
259 
260 /**
261  * NULL-safe release of *refPtr, and sets value to NULL.
262  */
263 static void vt_release_num(CFNumberRef* refPtr){
264  if (!*refPtr) {
265  return;
266  }
267 
268  CFRelease(*refPtr);
269  *refPtr = NULL;
270 }
271 
272 static void set_async_error(VTEncContext *vtctx, int err)
273 {
274  BufNode *info;
275 
276  pthread_mutex_lock(&vtctx->lock);
277 
278  vtctx->async_error = err;
279 
280  info = vtctx->q_head;
281  vtctx->q_head = vtctx->q_tail = NULL;
282 
283  while (info) {
284  BufNode *next = info->next;
285  CFRelease(info->cm_buffer);
286  av_free(info);
287  info = next;
288  }
289 
290  pthread_mutex_unlock(&vtctx->lock);
291 }
292 
293 static void clear_frame_queue(VTEncContext *vtctx)
294 {
295  set_async_error(vtctx, 0);
296 }
297 
298 static int vtenc_q_pop(VTEncContext *vtctx, bool wait, CMSampleBufferRef *buf, ExtraSEI **sei)
299 {
300  BufNode *info;
301 
302  pthread_mutex_lock(&vtctx->lock);
303 
304  if (vtctx->async_error) {
305  pthread_mutex_unlock(&vtctx->lock);
306  return vtctx->async_error;
307  }
308 
309  if (vtctx->flushing && vtctx->frame_ct_in == vtctx->frame_ct_out) {
310  *buf = NULL;
311 
312  pthread_mutex_unlock(&vtctx->lock);
313  return 0;
314  }
315 
316  while (!vtctx->q_head && !vtctx->async_error && wait && !vtctx->flushing) {
317  pthread_cond_wait(&vtctx->cv_sample_sent, &vtctx->lock);
318  }
319 
320  if (!vtctx->q_head) {
321  pthread_mutex_unlock(&vtctx->lock);
322  *buf = NULL;
323  return 0;
324  }
325 
326  info = vtctx->q_head;
327  vtctx->q_head = vtctx->q_head->next;
328  if (!vtctx->q_head) {
329  vtctx->q_tail = NULL;
330  }
331 
332  vtctx->frame_ct_out++;
333  pthread_mutex_unlock(&vtctx->lock);
334 
335  *buf = info->cm_buffer;
336  if (sei && *buf) {
337  *sei = info->sei;
338  } else if (info->sei) {
339  if (info->sei->data) av_free(info->sei->data);
340  av_free(info->sei);
341  }
342  av_free(info);
343 
344 
345  return 0;
346 }
347 
348 static void vtenc_q_push(VTEncContext *vtctx, CMSampleBufferRef buffer, ExtraSEI *sei)
349 {
350  BufNode *info = av_malloc(sizeof(BufNode));
351  if (!info) {
352  set_async_error(vtctx, AVERROR(ENOMEM));
353  return;
354  }
355 
356  CFRetain(buffer);
357  info->cm_buffer = buffer;
358  info->sei = sei;
359  info->next = NULL;
360 
361  pthread_mutex_lock(&vtctx->lock);
362 
363  if (!vtctx->q_head) {
364  vtctx->q_head = info;
365  } else {
366  vtctx->q_tail->next = info;
367  }
368 
369  vtctx->q_tail = info;
370 
371  pthread_cond_signal(&vtctx->cv_sample_sent);
372  pthread_mutex_unlock(&vtctx->lock);
373 }
374 
375 static int count_nalus(size_t length_code_size,
376  CMSampleBufferRef sample_buffer,
377  int *count)
378 {
379  size_t offset = 0;
380  int status;
381  int nalu_ct = 0;
382  uint8_t size_buf[4];
383  size_t src_size = CMSampleBufferGetTotalSampleSize(sample_buffer);
384  CMBlockBufferRef block = CMSampleBufferGetDataBuffer(sample_buffer);
385 
386  if (length_code_size > 4)
387  return AVERROR_INVALIDDATA;
388 
389  while (offset < src_size) {
390  size_t curr_src_len;
391  size_t box_len = 0;
392  size_t i;
393 
394  status = CMBlockBufferCopyDataBytes(block,
395  offset,
396  length_code_size,
397  size_buf);
398 
399  for (i = 0; i < length_code_size; i++) {
400  box_len <<= 8;
401  box_len |= size_buf[i];
402  }
403 
404  curr_src_len = box_len + length_code_size;
405  offset += curr_src_len;
406 
407  nalu_ct++;
408  }
409 
410  *count = nalu_ct;
411  return 0;
412 }
413 
414 static CMVideoCodecType get_cm_codec_type(AVCodecContext *avctx,
415  int64_t profile,
416  double alpha_quality)
417 {
418  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt == AV_PIX_FMT_VIDEOTOOLBOX ? avctx->sw_pix_fmt : avctx->pix_fmt);
419  switch (avctx->codec_id) {
420  case AV_CODEC_ID_H264: return kCMVideoCodecType_H264;
421  case AV_CODEC_ID_HEVC:
422  if (desc && (desc->flags & AV_PIX_FMT_FLAG_ALPHA) && alpha_quality > 0.0) {
423  return kCMVideoCodecType_HEVCWithAlpha;
424  }
425  return kCMVideoCodecType_HEVC;
426  case AV_CODEC_ID_PRORES:
427  switch (profile) {
428  case FF_PROFILE_PRORES_PROXY:
429  return MKBETAG('a','p','c','o'); // kCMVideoCodecType_AppleProRes422Proxy
430  case FF_PROFILE_PRORES_LT:
431  return MKBETAG('a','p','c','s'); // kCMVideoCodecType_AppleProRes422LT
432  case FF_PROFILE_PRORES_STANDARD:
433  return MKBETAG('a','p','c','n'); // kCMVideoCodecType_AppleProRes422
434  case FF_PROFILE_PRORES_HQ:
435  return MKBETAG('a','p','c','h'); // kCMVideoCodecType_AppleProRes422HQ
436  case FF_PROFILE_PRORES_4444:
437  return MKBETAG('a','p','4','h'); // kCMVideoCodecType_AppleProRes4444
438  case FF_PROFILE_PRORES_XQ:
439  return MKBETAG('a','p','4','x'); // kCMVideoCodecType_AppleProRes4444XQ
440 
441  default:
442  av_log(avctx, AV_LOG_ERROR, "Unknown profile ID: %"PRId64", using auto\n", profile);
443  case FF_PROFILE_UNKNOWN:
444  if (desc &&
445  ((desc->flags & AV_PIX_FMT_FLAG_ALPHA) ||
446  desc->log2_chroma_w == 0))
447  return MKBETAG('a','p','4','h'); // kCMVideoCodecType_AppleProRes4444
448  else
449  return MKBETAG('a','p','c','n'); // kCMVideoCodecType_AppleProRes422
450  }
451  default: return 0;
452  }
453 }
454 
455 /**
456  * Get the parameter sets from a CMSampleBufferRef.
457  * @param dst If *dst isn't NULL, the parameters are copied into existing
458  * memory. *dst_size must be set accordingly when *dst != NULL.
459  * If *dst is NULL, it will be allocated.
460  * In all cases, *dst_size is set to the number of bytes used starting
461  * at *dst.
462  */
463 static int get_params_size(
464  AVCodecContext *avctx,
465  CMVideoFormatDescriptionRef vid_fmt,
466  size_t *size)
467 {
468  VTEncContext *vtctx = avctx->priv_data;
469  size_t total_size = 0;
470  size_t ps_count;
471  int is_count_bad = 0;
472  size_t i;
473  int status;
474  status = vtctx->get_param_set_func(vid_fmt,
475  0,
476  NULL,
477  NULL,
478  &ps_count,
479  NULL);
480  if (status) {
481  is_count_bad = 1;
482  ps_count = 0;
483  status = 0;
484  }
485 
486  for (i = 0; i < ps_count || is_count_bad; i++) {
487  const uint8_t *ps;
488  size_t ps_size;
489  status = vtctx->get_param_set_func(vid_fmt,
490  i,
491  &ps,
492  &ps_size,
493  NULL,
494  NULL);
495  if (status) {
496  /*
497  * When ps_count is invalid, status != 0 ends the loop normally
498  * unless we didn't get any parameter sets.
499  */
500  if (i > 0 && is_count_bad) status = 0;
501 
502  break;
503  }
504 
505  total_size += ps_size + sizeof(start_code);
506  }
507 
508  if (status) {
509  av_log(avctx, AV_LOG_ERROR, "Error getting parameter set sizes: %d\n", status);
510  return AVERROR_EXTERNAL;
511  }
512 
513  *size = total_size;
514  return 0;
515 }
516 
517 static int copy_param_sets(
518  AVCodecContext *avctx,
519  CMVideoFormatDescriptionRef vid_fmt,
520  uint8_t *dst,
521  size_t dst_size)
522 {
523  VTEncContext *vtctx = avctx->priv_data;
524  size_t ps_count;
525  int is_count_bad = 0;
526  int status;
527  size_t offset = 0;
528  size_t i;
529 
530  status = vtctx->get_param_set_func(vid_fmt,
531  0,
532  NULL,
533  NULL,
534  &ps_count,
535  NULL);
536  if (status) {
537  is_count_bad = 1;
538  ps_count = 0;
539  status = 0;
540  }
541 
542 
543  for (i = 0; i < ps_count || is_count_bad; i++) {
544  const uint8_t *ps;
545  size_t ps_size;
546  size_t next_offset;
547 
548  status = vtctx->get_param_set_func(vid_fmt,
549  i,
550  &ps,
551  &ps_size,
552  NULL,
553  NULL);
554  if (status) {
555  if (i > 0 && is_count_bad) status = 0;
556 
557  break;
558  }
559 
560  next_offset = offset + sizeof(start_code) + ps_size;
561  if (dst_size < next_offset) {
562  av_log(avctx, AV_LOG_ERROR, "Error: buffer too small for parameter sets.\n");
563  return AVERROR_BUFFER_TOO_SMALL;
564  }
565 
566  memcpy(dst + offset, start_code, sizeof(start_code));
567  offset += sizeof(start_code);
568 
569  memcpy(dst + offset, ps, ps_size);
570  offset = next_offset;
571  }
572 
573  if (status) {
574  av_log(avctx, AV_LOG_ERROR, "Error getting parameter set data: %d\n", status);
575  return AVERROR_EXTERNAL;
576  }
577 
578  return 0;
579 }
580 
581 static int set_extradata(AVCodecContext *avctx, CMSampleBufferRef sample_buffer)
582 {
583  VTEncContext *vtctx = avctx->priv_data;
584  CMVideoFormatDescriptionRef vid_fmt;
585  size_t total_size;
586  int status;
587 
588  vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
589  if (!vid_fmt) {
590  av_log(avctx, AV_LOG_ERROR, "No video format.\n");
591  return AVERROR_EXTERNAL;
592  }
593 
594  if (vtctx->get_param_set_func) {
595  status = get_params_size(avctx, vid_fmt, &total_size);
596  if (status) {
597  av_log(avctx, AV_LOG_ERROR, "Could not get parameter sets.\n");
598  return status;
599  }
600 
601  avctx->extradata = av_mallocz(total_size + AV_INPUT_BUFFER_PADDING_SIZE);
602  if (!avctx->extradata) {
603  return AVERROR(ENOMEM);
604  }
605  avctx->extradata_size = total_size;
606 
607  status = copy_param_sets(avctx, vid_fmt, avctx->extradata, total_size);
608 
609  if (status) {
610  av_log(avctx, AV_LOG_ERROR, "Could not copy param sets.\n");
611  return status;
612  }
613  } else {
614  CFDataRef data = CMFormatDescriptionGetExtension(vid_fmt, kCMFormatDescriptionExtension_VerbatimSampleDescription);
615  if (data && CFGetTypeID(data) == CFDataGetTypeID()) {
616  CFIndex size = CFDataGetLength(data);
617 
618  avctx->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
619  if (!avctx->extradata)
620  return AVERROR(ENOMEM);
621  avctx->extradata_size = size;
622 
623  CFDataGetBytes(data, CFRangeMake(0, size), avctx->extradata);
624  }
625  }
626 
627  return 0;
628 }
629 
630 static void vtenc_output_callback(
631  void *ctx,
632  void *sourceFrameCtx,
633  OSStatus status,
634  VTEncodeInfoFlags flags,
635  CMSampleBufferRef sample_buffer)
636 {
637  AVCodecContext *avctx = ctx;
638  VTEncContext *vtctx = avctx->priv_data;
639  ExtraSEI *sei = sourceFrameCtx;
640 
641  if (vtctx->async_error) {
642  return;
643  }
644 
645  if (status) {
646  av_log(avctx, AV_LOG_ERROR, "Error encoding frame: %d\n", (int)status);
647  set_async_error(vtctx, AVERROR_EXTERNAL);
648  return;
649  }
650 
651  if (!sample_buffer) {
652  return;
653  }
654 
655  if (!avctx->extradata && (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)) {
656  int set_status = set_extradata(avctx, sample_buffer);
657  if (set_status) {
658  set_async_error(vtctx, set_status);
659  return;
660  }
661  }
662 
663  vtenc_q_push(vtctx, sample_buffer, sei);
664 }
665 
666 static int get_length_code_size(
667  AVCodecContext *avctx,
668  CMSampleBufferRef sample_buffer,
669  size_t *size)
670 {
671  VTEncContext *vtctx = avctx->priv_data;
672  CMVideoFormatDescriptionRef vid_fmt;
673  int isize;
674  int status;
675 
676  vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
677  if (!vid_fmt) {
678  av_log(avctx, AV_LOG_ERROR, "Error getting buffer format description.\n");
679  return AVERROR_EXTERNAL;
680  }
681 
682  status = vtctx->get_param_set_func(vid_fmt,
683  0,
684  NULL,
685  NULL,
686  NULL,
687  &isize);
688  if (status) {
689  av_log(avctx, AV_LOG_ERROR, "Error getting length code size: %d\n", status);
690  return AVERROR_EXTERNAL;
691  }
692 
693  *size = isize;
694  return 0;
695 }
696 
697 /*
698  * Returns true on success.
699  *
700  * If profile_level_val is NULL and this method returns true, don't specify the
701  * profile/level to the encoder.
702  */
703 static bool get_vt_h264_profile_level(AVCodecContext *avctx,
704  CFStringRef *profile_level_val)
705 {
706  VTEncContext *vtctx = avctx->priv_data;
707  int64_t profile = vtctx->profile;
708 
709  if (profile == H264_PROF_AUTO && vtctx->level) {
710  //Need to pick a profile if level is not auto-selected.
711  profile = vtctx->has_b_frames ? H264_PROF_MAIN : H264_PROF_BASELINE;
712  }
713 
714  *profile_level_val = NULL;
715 
716  switch (profile) {
717  case H264_PROF_AUTO:
718  return true;
719 
720  case H264_PROF_BASELINE:
721  switch (vtctx->level) {
722  case 0: *profile_level_val =
723  compat_keys.kVTProfileLevel_H264_Baseline_AutoLevel; break;
724  case 13: *profile_level_val = kVTProfileLevel_H264_Baseline_1_3; break;
725  case 30: *profile_level_val = kVTProfileLevel_H264_Baseline_3_0; break;
726  case 31: *profile_level_val = kVTProfileLevel_H264_Baseline_3_1; break;
727  case 32: *profile_level_val = kVTProfileLevel_H264_Baseline_3_2; break;
728  case 40: *profile_level_val =
729  compat_keys.kVTProfileLevel_H264_Baseline_4_0; break;
730  case 41: *profile_level_val = kVTProfileLevel_H264_Baseline_4_1; break;
731  case 42: *profile_level_val =
732  compat_keys.kVTProfileLevel_H264_Baseline_4_2; break;
733  case 50: *profile_level_val =
734  compat_keys.kVTProfileLevel_H264_Baseline_5_0; break;
735  case 51: *profile_level_val =
736  compat_keys.kVTProfileLevel_H264_Baseline_5_1; break;
737  case 52: *profile_level_val =
738  compat_keys.kVTProfileLevel_H264_Baseline_5_2; break;
739  }
740  break;
741 
742  case H264_PROF_MAIN:
743  switch (vtctx->level) {
744  case 0: *profile_level_val =
745  compat_keys.kVTProfileLevel_H264_Main_AutoLevel; break;
746  case 30: *profile_level_val = kVTProfileLevel_H264_Main_3_0; break;
747  case 31: *profile_level_val = kVTProfileLevel_H264_Main_3_1; break;
748  case 32: *profile_level_val = kVTProfileLevel_H264_Main_3_2; break;
749  case 40: *profile_level_val = kVTProfileLevel_H264_Main_4_0; break;
750  case 41: *profile_level_val = kVTProfileLevel_H264_Main_4_1; break;
751  case 42: *profile_level_val =
752  compat_keys.kVTProfileLevel_H264_Main_4_2; break;
753  case 50: *profile_level_val = kVTProfileLevel_H264_Main_5_0; break;
754  case 51: *profile_level_val =
755  compat_keys.kVTProfileLevel_H264_Main_5_1; break;
756  case 52: *profile_level_val =
757  compat_keys.kVTProfileLevel_H264_Main_5_2; break;
758  }
759  break;
760 
761  case H264_PROF_HIGH:
762  switch (vtctx->level) {
763  case 0: *profile_level_val =
764  compat_keys.kVTProfileLevel_H264_High_AutoLevel; break;
765  case 30: *profile_level_val =
766  compat_keys.kVTProfileLevel_H264_High_3_0; break;
767  case 31: *profile_level_val =
768  compat_keys.kVTProfileLevel_H264_High_3_1; break;
769  case 32: *profile_level_val =
770  compat_keys.kVTProfileLevel_H264_High_3_2; break;
771  case 40: *profile_level_val =
772  compat_keys.kVTProfileLevel_H264_High_4_0; break;
773  case 41: *profile_level_val =
774  compat_keys.kVTProfileLevel_H264_High_4_1; break;
775  case 42: *profile_level_val =
776  compat_keys.kVTProfileLevel_H264_High_4_2; break;
777  case 50: *profile_level_val = kVTProfileLevel_H264_High_5_0; break;
778  case 51: *profile_level_val =
779  compat_keys.kVTProfileLevel_H264_High_5_1; break;
780  case 52: *profile_level_val =
781  compat_keys.kVTProfileLevel_H264_High_5_2; break;
782  }
783  break;
784  case H264_PROF_EXTENDED:
785  switch (vtctx->level) {
786  case 0: *profile_level_val =
787  compat_keys.kVTProfileLevel_H264_Extended_AutoLevel; break;
788  case 50: *profile_level_val =
789  compat_keys.kVTProfileLevel_H264_Extended_5_0; break;
790  }
791  break;
792  }
793 
794  if (!*profile_level_val) {
795  av_log(avctx, AV_LOG_ERROR, "Invalid Profile/Level.\n");
796  return false;
797  }
798 
799  return true;
800 }
801 
802 /*
803  * Returns true on success.
804  *
805  * If profile_level_val is NULL and this method returns true, don't specify the
806  * profile/level to the encoder.
807  */
808 static bool get_vt_hevc_profile_level(AVCodecContext *avctx,
809  CFStringRef *profile_level_val)
810 {
811  VTEncContext *vtctx = avctx->priv_data;
812  int64_t profile = vtctx->profile;
813 
814  *profile_level_val = NULL;
815 
816  switch (profile) {
817  case HEVC_PROF_AUTO:
818  return true;
819  case HEVC_PROF_MAIN:
820  *profile_level_val =
821  compat_keys.kVTProfileLevel_HEVC_Main_AutoLevel;
822  break;
823  case HEVC_PROF_MAIN10:
824  *profile_level_val =
825  compat_keys.kVTProfileLevel_HEVC_Main10_AutoLevel;
826  break;
827  }
828 
829  if (!*profile_level_val) {
830  av_log(avctx, AV_LOG_ERROR, "Invalid Profile/Level.\n");
831  return false;
832  }
833 
834  return true;
835 }
836 
837 static int get_cv_pixel_format(AVCodecContext* avctx,
838  enum AVPixelFormat fmt,
839  enum AVColorRange range,
840  int* av_pixel_format,
841  int* range_guessed)
842 {
843  if (range_guessed) *range_guessed = range != AVCOL_RANGE_MPEG &&
844  range != AVCOL_RANGE_JPEG;
845 
846  //MPEG range is used when no range is set
847  *av_pixel_format = av_map_videotoolbox_format_from_pixfmt2(fmt, range == AVCOL_RANGE_JPEG);
848 
849  return *av_pixel_format ? 0 : AVERROR(EINVAL);
850 }
851 
852 static void add_color_attr(AVCodecContext *avctx, CFMutableDictionaryRef dict) {
853  VTEncContext *vtctx = avctx->priv_data;
854 
855  if (vtctx->color_primaries) {
856  CFDictionarySetValue(dict,
857  kCVImageBufferColorPrimariesKey,
858  vtctx->color_primaries);
859  }
860 
861  if (vtctx->transfer_function) {
862  CFDictionarySetValue(dict,
863  kCVImageBufferTransferFunctionKey,
864  vtctx->transfer_function);
865  }
866 
867  if (vtctx->ycbcr_matrix) {
868  CFDictionarySetValue(dict,
869  kCVImageBufferYCbCrMatrixKey,
870  vtctx->ycbcr_matrix);
871  }
872 }
873 
874 static int create_cv_pixel_buffer_info(AVCodecContext* avctx,
875  CFMutableDictionaryRef* dict)
876 {
877  CFNumberRef cv_color_format_num = NULL;
878  CFNumberRef width_num = NULL;
879  CFNumberRef height_num = NULL;
880  CFMutableDictionaryRef pixel_buffer_info = NULL;
881  int cv_color_format;
882  int status = get_cv_pixel_format(avctx,
883  avctx->pix_fmt,
884  avctx->color_range,
885  &cv_color_format,
886  NULL);
887  if (status) return status;
888 
889  pixel_buffer_info = CFDictionaryCreateMutable(
890  kCFAllocatorDefault,
891  20,
892  &kCFCopyStringDictionaryKeyCallBacks,
893  &kCFTypeDictionaryValueCallBacks);
894 
895  if (!pixel_buffer_info) goto pbinfo_nomem;
896 
897  cv_color_format_num = CFNumberCreate(kCFAllocatorDefault,
898  kCFNumberSInt32Type,
899  &cv_color_format);
900  if (!cv_color_format_num) goto pbinfo_nomem;
901 
902  CFDictionarySetValue(pixel_buffer_info,
903  kCVPixelBufferPixelFormatTypeKey,
904  cv_color_format_num);
905  vt_release_num(&cv_color_format_num);
906 
907  width_num = CFNumberCreate(kCFAllocatorDefault,
908  kCFNumberSInt32Type,
909  &avctx->width);
910  if (!width_num) goto pbinfo_nomem;
911 
912  CFDictionarySetValue(pixel_buffer_info,
913  kCVPixelBufferWidthKey,
914  width_num);
915  vt_release_num(&width_num);
916 
917  height_num = CFNumberCreate(kCFAllocatorDefault,
918  kCFNumberSInt32Type,
919  &avctx->height);
920  if (!height_num) goto pbinfo_nomem;
921 
922  CFDictionarySetValue(pixel_buffer_info,
923  kCVPixelBufferHeightKey,
924  height_num);
925  vt_release_num(&height_num);
926 
927  add_color_attr(avctx, pixel_buffer_info);
928 
929  *dict = pixel_buffer_info;
930  return 0;
931 
932 pbinfo_nomem:
933  vt_release_num(&cv_color_format_num);
934  vt_release_num(&width_num);
935  vt_release_num(&height_num);
936  if (pixel_buffer_info) CFRelease(pixel_buffer_info);
937 
938  return AVERROR(ENOMEM);
939 }
940 
941 static int get_cv_color_primaries(AVCodecContext *avctx,
942  CFStringRef *primaries)
943 {
944  enum AVColorPrimaries pri = avctx->color_primaries;
945  switch (pri) {
946  case AVCOL_PRI_UNSPECIFIED:
947  *primaries = NULL;
948  break;
949 
950  case AVCOL_PRI_BT470BG:
951  *primaries = kCVImageBufferColorPrimaries_EBU_3213;
952  break;
953 
954  case AVCOL_PRI_SMPTE170M:
955  *primaries = kCVImageBufferColorPrimaries_SMPTE_C;
956  break;
957 
958  case AVCOL_PRI_BT709:
959  *primaries = kCVImageBufferColorPrimaries_ITU_R_709_2;
960  break;
961 
962  case AVCOL_PRI_BT2020:
963  *primaries = compat_keys.kCVImageBufferColorPrimaries_ITU_R_2020;
964  break;
965 
966  default:
967  av_log(avctx, AV_LOG_ERROR, "Color primaries %s is not supported.\n", av_color_primaries_name(pri));
968  *primaries = NULL;
969  return -1;
970  }
971 
972  return 0;
973 }
974 
975 static int get_cv_transfer_function(AVCodecContext *avctx,
976  CFStringRef *transfer_fnc,
977  CFNumberRef *gamma_level)
978 {
979  enum AVColorTransferCharacteristic trc = avctx->color_trc;
980  Float32 gamma;
981  *gamma_level = NULL;
982 
983  switch (trc) {
984  case AVCOL_TRC_UNSPECIFIED:
985  *transfer_fnc = NULL;
986  break;
987 
988  case AVCOL_TRC_BT709:
989  *transfer_fnc = kCVImageBufferTransferFunction_ITU_R_709_2;
990  break;
991 
992  case AVCOL_TRC_SMPTE240M:
993  *transfer_fnc = kCVImageBufferTransferFunction_SMPTE_240M_1995;
994  break;
995 
996 #if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ
997  case AVCOL_TRC_SMPTE2084:
998  *transfer_fnc = kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ;
999  break;
1000 #endif
1001 #if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_LINEAR
1002  case AVCOL_TRC_LINEAR:
1003  *transfer_fnc = kCVImageBufferTransferFunction_Linear;
1004  break;
1005 #endif
1006 #if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG
1007  case AVCOL_TRC_ARIB_STD_B67:
1008  *transfer_fnc = kCVImageBufferTransferFunction_ITU_R_2100_HLG;
1009  break;
1010 #endif
1011 
1012  case AVCOL_TRC_GAMMA22:
1013  gamma = 2.2;
1014  *transfer_fnc = kCVImageBufferTransferFunction_UseGamma;
1015  *gamma_level = CFNumberCreate(NULL, kCFNumberFloat32Type, &gamma);
1016  break;
1017 
1018  case AVCOL_TRC_GAMMA28:
1019  gamma = 2.8;
1020  *transfer_fnc = kCVImageBufferTransferFunction_UseGamma;
1021  *gamma_level = CFNumberCreate(NULL, kCFNumberFloat32Type, &gamma);
1022  break;
1023 
1024  case AVCOL_TRC_BT2020_10:
1025  case AVCOL_TRC_BT2020_12:
1026  *transfer_fnc = compat_keys.kCVImageBufferTransferFunction_ITU_R_2020;
1027  break;
1028 
1029  default:
1030  *transfer_fnc = NULL;
1031  av_log(avctx, AV_LOG_ERROR, "Transfer function %s is not supported.\n", av_color_transfer_name(trc));
1032  return -1;
1033  }
1034 
1035  return 0;
1036 }
1037 
1038 static int get_cv_ycbcr_matrix(AVCodecContext *avctx, CFStringRef *matrix) {
1039  switch(avctx->colorspace) {
1040  case AVCOL_SPC_BT709:
1041  *matrix = kCVImageBufferYCbCrMatrix_ITU_R_709_2;
1042  break;
1043 
1044  case AVCOL_SPC_UNSPECIFIED:
1045  case AVCOL_SPC_RGB:
1046  *matrix = NULL;
1047  break;
1048 
1049  case AVCOL_SPC_BT470BG:
1050  case AVCOL_SPC_SMPTE170M:
1051  *matrix = kCVImageBufferYCbCrMatrix_ITU_R_601_4;
1052  break;
1053 
1054  case AVCOL_SPC_SMPTE240M:
1055  *matrix = kCVImageBufferYCbCrMatrix_SMPTE_240M_1995;
1056  break;
1057 
1058  case AVCOL_SPC_BT2020_NCL:
1059  *matrix = compat_keys.kCVImageBufferYCbCrMatrix_ITU_R_2020;
1060  break;
1061 
1062  default:
1063  av_log(avctx, AV_LOG_ERROR, "Color space %s is not supported.\n", av_color_space_name(avctx->colorspace));
1064  return -1;
1065  }
1066 
1067  return 0;
1068 }
1069 
1070 // constant quality only on Macs with Apple Silicon
1071 static bool vtenc_qscale_enabled(void)
1072 {
1073  return !TARGET_OS_IPHONE && TARGET_CPU_ARM64;
1074 }
1075 
1076 static int vtenc_create_encoder(AVCodecContext *avctx,
1077  CMVideoCodecType codec_type,
1078  CFStringRef profile_level,
1079  CFNumberRef gamma_level,
1080  CFDictionaryRef enc_info,
1081  CFDictionaryRef pixel_buffer_info,
1082  VTCompressionSessionRef *session)
1083 {
1084  VTEncContext *vtctx = avctx->priv_data;
1085  SInt32 bit_rate = avctx->bit_rate;
1086  SInt32 max_rate = avctx->rc_max_rate;
1087  Float32 quality = avctx->global_quality / FF_QP2LAMBDA;
1088  CFNumberRef bit_rate_num;
1089  CFNumberRef quality_num;
1090  CFNumberRef bytes_per_second;
1091  CFNumberRef one_second;
1092  CFArrayRef data_rate_limits;
1093  int64_t bytes_per_second_value = 0;
1094  int64_t one_second_value = 0;
1095  void *nums[2];
1096 
1097  int status = VTCompressionSessionCreate(kCFAllocatorDefault,
1098  avctx->width,
1099  avctx->height,
1100  codec_type,
1101  enc_info,
1102  pixel_buffer_info,
1103  kCFAllocatorDefault,
1104  vtenc_output_callback,
1105  avctx,
1106  session);
1107 
1108  if (status || !vtctx->session) {
1109  av_log(avctx, AV_LOG_ERROR, "Error: cannot create compression session: %d\n", status);
1110 
1111 #if !TARGET_OS_IPHONE
1112  if (!vtctx->allow_sw) {
1113  av_log(avctx, AV_LOG_ERROR, "Try -allow_sw 1. The hardware encoder may be busy, or not supported.\n");
1114  }
1115 #endif
1116 
1117  return AVERROR_EXTERNAL;
1118  }
1119 
1120  if (avctx->flags & AV_CODEC_FLAG_QSCALE && !vtenc_qscale_enabled()) {
1121  av_log(avctx, AV_LOG_ERROR, "Error: -q:v qscale not available for encoder. Use -b:v bitrate instead.\n");
1122  return AVERROR_EXTERNAL;
1123  }
1124 
1125  if (avctx->flags & AV_CODEC_FLAG_QSCALE) {
1126  quality = quality >= 100 ? 1.0 : quality / 100;
1127  quality_num = CFNumberCreate(kCFAllocatorDefault,
1128  kCFNumberFloat32Type,
1129  &quality);
1130  if (!quality_num) return AVERROR(ENOMEM);
1131 
1132  status = VTSessionSetProperty(vtctx->session,
1133  kVTCompressionPropertyKey_Quality,
1134  quality_num);
1135  CFRelease(quality_num);
1136  } else if (avctx->codec_id != AV_CODEC_ID_PRORES) {
1137  bit_rate_num = CFNumberCreate(kCFAllocatorDefault,
1138  kCFNumberSInt32Type,
1139  &bit_rate);
1140  if (!bit_rate_num) return AVERROR(ENOMEM);
1141 
1142  status = VTSessionSetProperty(vtctx->session,
1143  kVTCompressionPropertyKey_AverageBitRate,
1144  bit_rate_num);
1145  CFRelease(bit_rate_num);
1146  }
1147 
1148  if (status) {
1149  av_log(avctx, AV_LOG_ERROR, "Error setting bitrate property: %d\n", status);
1150  return AVERROR_EXTERNAL;
1151  }
1152 
1153  if (vtctx->prio_speed >= 0) {
1154  status = VTSessionSetProperty(vtctx->session,
1155  compat_keys.kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality,
1156  vtctx->prio_speed ? kCFBooleanTrue : kCFBooleanFalse);
1157  if (status) {
1158  av_log(avctx, AV_LOG_WARNING, "PrioritizeEncodingSpeedOverQuality property is not supported on this device. Ignoring.\n");
1159  }
1160  }
1161 
1162  if ((vtctx->codec_id == AV_CODEC_ID_H264 || vtctx->codec_id == AV_CODEC_ID_HEVC)
1163  && max_rate > 0) {
1164  bytes_per_second_value = max_rate >> 3;
1165  bytes_per_second = CFNumberCreate(kCFAllocatorDefault,
1166  kCFNumberSInt64Type,
1167  &bytes_per_second_value);
1168  if (!bytes_per_second) {
1169  return AVERROR(ENOMEM);
1170  }
1171  one_second_value = 1;
1172  one_second = CFNumberCreate(kCFAllocatorDefault,
1173  kCFNumberSInt64Type,
1174  &one_second_value);
1175  if (!one_second) {
1176  CFRelease(bytes_per_second);
1177  return AVERROR(ENOMEM);
1178  }
1179  nums[0] = (void *)bytes_per_second;
1180  nums[1] = (void *)one_second;
1181  data_rate_limits = CFArrayCreate(kCFAllocatorDefault,
1182  (const void **)nums,
1183  2,
1184  &kCFTypeArrayCallBacks);
1185 
1186  if (!data_rate_limits) {
1187  CFRelease(bytes_per_second);
1188  CFRelease(one_second);
1189  return AVERROR(ENOMEM);
1190  }
1191  status = VTSessionSetProperty(vtctx->session,
1192  kVTCompressionPropertyKey_DataRateLimits,
1193  data_rate_limits);
1194 
1195  CFRelease(bytes_per_second);
1196  CFRelease(one_second);
1197  CFRelease(data_rate_limits);
1198 
1199  if (status) {
1200  av_log(avctx, AV_LOG_ERROR, "Error setting max bitrate property: %d\n", status);
1201  // kVTCompressionPropertyKey_DataRateLimits is available for HEVC
1202  // now but not on old release. There is no document about since
1203  // when. So ignore the error if it failed for hevc.
1204  if (vtctx->codec_id != AV_CODEC_ID_HEVC)
1205  return AVERROR_EXTERNAL;
1206  }
1207  }
1208 
1209  if (vtctx->codec_id == AV_CODEC_ID_HEVC) {
1210  if (avctx->pix_fmt == AV_PIX_FMT_BGRA && vtctx->alpha_quality > 0.0) {
1211  CFNumberRef alpha_quality_num = CFNumberCreate(kCFAllocatorDefault,
1212  kCFNumberDoubleType,
1213  &vtctx->alpha_quality);
1214  if (!alpha_quality_num) return AVERROR(ENOMEM);
1215 
1216  status = VTSessionSetProperty(vtctx->session,
1217  compat_keys.kVTCompressionPropertyKey_TargetQualityForAlpha,
1218  alpha_quality_num);
1219  CFRelease(alpha_quality_num);
1220  }
1221  }
1222 
1223  if (profile_level) {
1224  status = VTSessionSetProperty(vtctx->session,
1225  kVTCompressionPropertyKey_ProfileLevel,
1226  profile_level);
1227  if (status) {
1228  av_log(avctx, AV_LOG_ERROR, "Error setting profile/level property: %d. Output will be encoded using a supported profile/level combination.\n", status);
1229  }
1230  }
1231 
1232  if (avctx->gop_size > 0 && avctx->codec_id != AV_CODEC_ID_PRORES) {
1233  CFNumberRef interval = CFNumberCreate(kCFAllocatorDefault,
1234  kCFNumberIntType,
1235  &avctx->gop_size);
1236  if (!interval) {
1237  return AVERROR(ENOMEM);
1238  }
1239 
1240  status = VTSessionSetProperty(vtctx->session,
1241  kVTCompressionPropertyKey_MaxKeyFrameInterval,
1242  interval);
1243  CFRelease(interval);
1244 
1245  if (status) {
1246  av_log(avctx, AV_LOG_ERROR, "Error setting 'max key-frame interval' property: %d\n", status);
1247  return AVERROR_EXTERNAL;
1248  }
1249  }
1250 
1251  if (vtctx->frames_before) {
1252  status = VTSessionSetProperty(vtctx->session,
1253  kVTCompressionPropertyKey_MoreFramesBeforeStart,
1254  kCFBooleanTrue);
1255 
1256  if (status == kVTPropertyNotSupportedErr) {
1257  av_log(avctx, AV_LOG_WARNING, "frames_before property is not supported on this device. Ignoring.\n");
1258  } else if (status) {
1259  av_log(avctx, AV_LOG_ERROR, "Error setting frames_before property: %d\n", status);
1260  }
1261  }
1262 
1263  if (vtctx->frames_after) {
1264  status = VTSessionSetProperty(vtctx->session,
1265  kVTCompressionPropertyKey_MoreFramesAfterEnd,
1266  kCFBooleanTrue);
1267 
1268  if (status == kVTPropertyNotSupportedErr) {
1269  av_log(avctx, AV_LOG_WARNING, "frames_after property is not supported on this device. Ignoring.\n");
1270  } else if (status) {
1271  av_log(avctx, AV_LOG_ERROR, "Error setting frames_after property: %d\n", status);
1272  }
1273  }
1274 
1275  if (avctx->sample_aspect_ratio.num != 0) {
1276  CFNumberRef num;
1277  CFNumberRef den;
1278  CFMutableDictionaryRef par;
1279  AVRational *avpar = &avctx->sample_aspect_ratio;
1280 
1281  av_reduce(&avpar->num, &avpar->den,
1282  avpar->num, avpar->den,
1283  0xFFFFFFFF);
1284 
1285  num = CFNumberCreate(kCFAllocatorDefault,
1286  kCFNumberIntType,
1287  &avpar->num);
1288 
1289  den = CFNumberCreate(kCFAllocatorDefault,
1290  kCFNumberIntType,
1291  &avpar->den);
1292 
1293 
1294 
1295  par = CFDictionaryCreateMutable(kCFAllocatorDefault,
1296  2,
1297  &kCFCopyStringDictionaryKeyCallBacks,
1298  &kCFTypeDictionaryValueCallBacks);
1299 
1300  if (!par || !num || !den) {
1301  if (par) CFRelease(par);
1302  if (num) CFRelease(num);
1303  if (den) CFRelease(den);
1304 
1305  return AVERROR(ENOMEM);
1306  }
1307 
1308  CFDictionarySetValue(
1309  par,
1310  kCMFormatDescriptionKey_PixelAspectRatioHorizontalSpacing,
1311  num);
1312 
1313  CFDictionarySetValue(
1314  par,
1315  kCMFormatDescriptionKey_PixelAspectRatioVerticalSpacing,
1316  den);
1317 
1318  status = VTSessionSetProperty(vtctx->session,
1319  kVTCompressionPropertyKey_PixelAspectRatio,
1320  par);
1321 
1322  CFRelease(par);
1323  CFRelease(num);
1324  CFRelease(den);
1325 
1326  if (status) {
1327  av_log(avctx,
1328  AV_LOG_ERROR,
1329  "Error setting pixel aspect ratio to %d:%d: %d.\n",
1330  avctx->sample_aspect_ratio.num,
1331  avctx->sample_aspect_ratio.den,
1332  status);
1333 
1334  return AVERROR_EXTERNAL;
1335  }
1336  }
1337 
1338 
1339  if (vtctx->transfer_function) {
1340  status = VTSessionSetProperty(vtctx->session,
1341  kVTCompressionPropertyKey_TransferFunction,
1342  vtctx->transfer_function);
1343 
1344  if (status) {
1345  av_log(avctx, AV_LOG_WARNING, "Could not set transfer function: %d\n", status);
1346  }
1347  }
1348 
1349 
1350  if (vtctx->ycbcr_matrix) {
1351  status = VTSessionSetProperty(vtctx->session,
1352  kVTCompressionPropertyKey_YCbCrMatrix,
1353  vtctx->ycbcr_matrix);
1354 
1355  if (status) {
1356  av_log(avctx, AV_LOG_WARNING, "Could not set ycbcr matrix: %d\n", status);
1357  }
1358  }
1359 
1360 
1361  if (vtctx->color_primaries) {
1362  status = VTSessionSetProperty(vtctx->session,
1363  kVTCompressionPropertyKey_ColorPrimaries,
1364  vtctx->color_primaries);
1365 
1366  if (status) {
1367  av_log(avctx, AV_LOG_WARNING, "Could not set color primaries: %d\n", status);
1368  }
1369  }
1370 
1371  if (gamma_level) {
1372  status = VTSessionSetProperty(vtctx->session,
1373  kCVImageBufferGammaLevelKey,
1374  gamma_level);
1375 
1376  if (status) {
1377  av_log(avctx, AV_LOG_WARNING, "Could not set gamma level: %d\n", status);
1378  }
1379  }
1380 
1381  if (!vtctx->has_b_frames && avctx->codec_id != AV_CODEC_ID_PRORES) {
1382  status = VTSessionSetProperty(vtctx->session,
1383  kVTCompressionPropertyKey_AllowFrameReordering,
1384  kCFBooleanFalse);
1385 
1386  if (status) {
1387  av_log(avctx, AV_LOG_ERROR, "Error setting 'allow frame reordering' property: %d\n", status);
1388  return AVERROR_EXTERNAL;
1389  }
1390  }
1391 
1392  if (vtctx->entropy != VT_ENTROPY_NOT_SET) {
1393  CFStringRef entropy = vtctx->entropy == VT_CABAC ?
1394  compat_keys.kVTH264EntropyMode_CABAC:
1395  compat_keys.kVTH264EntropyMode_CAVLC;
1396 
1397  status = VTSessionSetProperty(vtctx->session,
1398  compat_keys.kVTCompressionPropertyKey_H264EntropyMode,
1399  entropy);
1400 
1401  if (status) {
1402  av_log(avctx, AV_LOG_ERROR, "Error setting entropy property: %d\n", status);
1403  }
1404  }
1405 
1406  if (vtctx->realtime >= 0) {
1407  status = VTSessionSetProperty(vtctx->session,
1408  compat_keys.kVTCompressionPropertyKey_RealTime,
1409  vtctx->realtime ? kCFBooleanTrue : kCFBooleanFalse);
1410 
1411  if (status) {
1412  av_log(avctx, AV_LOG_ERROR, "Error setting realtime property: %d\n", status);
1413  }
1414  }
1415 
1416  status = VTCompressionSessionPrepareToEncodeFrames(vtctx->session);
1417  if (status) {
1418  av_log(avctx, AV_LOG_ERROR, "Error: cannot prepare encoder: %d\n", status);
1419  return AVERROR_EXTERNAL;
1420  }
1421 
1422  return 0;
1423 }
1424 
1425 static int vtenc_configure_encoder(AVCodecContext *avctx)
1426 {
1427  CFMutableDictionaryRef enc_info;
1428  CFMutableDictionaryRef pixel_buffer_info;
1429  CMVideoCodecType codec_type;
1430  VTEncContext *vtctx = avctx->priv_data;
1431  CFStringRef profile_level = NULL;
1432  CFNumberRef gamma_level = NULL;
1433  int status;
1434 
1435  codec_type = get_cm_codec_type(avctx, vtctx->profile, vtctx->alpha_quality);
1436  if (!codec_type) {
1437  av_log(avctx, AV_LOG_ERROR, "Error: no mapping for AVCodecID %d\n", avctx->codec_id);
1438  return AVERROR(EINVAL);
1439  }
1440 
1441 #if defined(MAC_OS_X_VERSION_10_9) && !TARGET_OS_IPHONE && (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_9)
1442  if (avctx->codec_id == AV_CODEC_ID_PRORES) {
1443  if (__builtin_available(macOS 10.10, *)) {
1444  VTRegisterProfessionalVideoWorkflowVideoEncoders();
1445  }
1446  }
1447 #endif
1448 
1449  vtctx->codec_id = avctx->codec_id;
1450 
1451  if (vtctx->codec_id == AV_CODEC_ID_H264) {
1452  vtctx->get_param_set_func = CMVideoFormatDescriptionGetH264ParameterSetAtIndex;
1453 
1454  vtctx->has_b_frames = avctx->max_b_frames > 0;
1455  if(vtctx->has_b_frames && vtctx->profile == H264_PROF_BASELINE){
1456  av_log(avctx, AV_LOG_WARNING, "Cannot use B-frames with baseline profile. Output will not contain B-frames.\n");
1457  vtctx->has_b_frames = 0;
1458  }
1459 
1460  if (vtctx->entropy == VT_CABAC && vtctx->profile == H264_PROF_BASELINE) {
1461  av_log(avctx, AV_LOG_WARNING, "CABAC entropy requires 'main' or 'high' profile, but baseline was requested. Encode will not use CABAC entropy.\n");
1462  vtctx->entropy = VT_ENTROPY_NOT_SET;
1463  }
1464 
1465  if (!get_vt_h264_profile_level(avctx, &profile_level)) return AVERROR(EINVAL);
1466  } else if (vtctx->codec_id == AV_CODEC_ID_HEVC) {
1467  vtctx->get_param_set_func = compat_keys.CMVideoFormatDescriptionGetHEVCParameterSetAtIndex;
1468  if (!vtctx->get_param_set_func) return AVERROR(EINVAL);
1469  if (!get_vt_hevc_profile_level(avctx, &profile_level)) return AVERROR(EINVAL);
1470  // HEVC has b-byramid
1471  vtctx->has_b_frames = avctx->max_b_frames > 0 ? 2 : 0;
1472  } else if (vtctx->codec_id == AV_CODEC_ID_PRORES) {
1473  avctx->codec_tag = av_bswap32(codec_type);
1474  }
1475 
1476  enc_info = CFDictionaryCreateMutable(
1477  kCFAllocatorDefault,
1478  20,
1479  &kCFCopyStringDictionaryKeyCallBacks,
1480  &kCFTypeDictionaryValueCallBacks
1481  );
1482 
1483  if (!enc_info) return AVERROR(ENOMEM);
1484 
1485 #if !TARGET_OS_IPHONE
1486  if(vtctx->require_sw) {
1487  CFDictionarySetValue(enc_info,
1488  compat_keys.kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder,
1489  kCFBooleanFalse);
1490  } else if (!vtctx->allow_sw) {
1491  CFDictionarySetValue(enc_info,
1492  compat_keys.kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder,
1493  kCFBooleanTrue);
1494  } else {
1495  CFDictionarySetValue(enc_info,
1496  compat_keys.kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder,
1497  kCFBooleanTrue);
1498  }
1499 #endif
1500 
1501  if (avctx->pix_fmt != AV_PIX_FMT_VIDEOTOOLBOX) {
1502  status = create_cv_pixel_buffer_info(avctx, &pixel_buffer_info);
1503  if (status)
1504  goto init_cleanup;
1505  } else {
1506  pixel_buffer_info = NULL;
1507  }
1508 
1509  vtctx->dts_delta = vtctx->has_b_frames ? -1 : 0;
1510 
1511  get_cv_transfer_function(avctx, &vtctx->transfer_function, &gamma_level);
1512  get_cv_ycbcr_matrix(avctx, &vtctx->ycbcr_matrix);
1513  get_cv_color_primaries(avctx, &vtctx->color_primaries);
1514 
1515 
1516  if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
1517  status = vtenc_populate_extradata(avctx,
1518  codec_type,
1519  profile_level,
1520  gamma_level,
1521  enc_info,
1522  pixel_buffer_info);
1523  if (status)
1524  goto init_cleanup;
1525  }
1526 
1527  status = vtenc_create_encoder(avctx,
1528  codec_type,
1529  profile_level,
1530  gamma_level,
1531  enc_info,
1532  pixel_buffer_info,
1533  &vtctx->session);
1534 
1535 init_cleanup:
1536  if (gamma_level)
1537  CFRelease(gamma_level);
1538 
1539  if (pixel_buffer_info)
1540  CFRelease(pixel_buffer_info);
1541 
1542  CFRelease(enc_info);
1543 
1544  return status;
1545 }
1546 
1547 static av_cold int vtenc_init(AVCodecContext *avctx)
1548 {
1549  VTEncContext *vtctx = avctx->priv_data;
1550  CFBooleanRef has_b_frames_cfbool;
1551  int status;
1552 
1553  pthread_once(&once_ctrl, loadVTEncSymbols);
1554 
1555  pthread_mutex_init(&vtctx->lock, NULL);
1556  pthread_cond_init(&vtctx->cv_sample_sent, NULL);
1557 
1558  vtctx->session = NULL;
1559  status = vtenc_configure_encoder(avctx);
1560  if (status) return status;
1561 
1562  status = VTSessionCopyProperty(vtctx->session,
1563  kVTCompressionPropertyKey_AllowFrameReordering,
1564  kCFAllocatorDefault,
1565  &has_b_frames_cfbool);
1566 
1567  if (!status && has_b_frames_cfbool) {
1568  //Some devices don't output B-frames for main profile, even if requested.
1569  // HEVC has b-pyramid
1570  if (CFBooleanGetValue(has_b_frames_cfbool))
1571  vtctx->has_b_frames = avctx->codec_id == AV_CODEC_ID_HEVC ? 2 : 1;
1572  else
1573  vtctx->has_b_frames = 0;
1574  CFRelease(has_b_frames_cfbool);
1575  }
1576  avctx->has_b_frames = vtctx->has_b_frames;
1577 
1578  return 0;
1579 }
1580 
1581 static void vtenc_get_frame_info(CMSampleBufferRef buffer, bool *is_key_frame)
1582 {
1583  CFArrayRef attachments;
1584  CFDictionaryRef attachment;
1585  CFBooleanRef not_sync;
1586  CFIndex len;
1587 
1588  attachments = CMSampleBufferGetSampleAttachmentsArray(buffer, false);
1589  len = !attachments ? 0 : CFArrayGetCount(attachments);
1590 
1591  if (!len) {
1592  *is_key_frame = true;
1593  return;
1594  }
1595 
1596  attachment = CFArrayGetValueAtIndex(attachments, 0);
1597 
1598  if (CFDictionaryGetValueIfPresent(attachment,
1599  kCMSampleAttachmentKey_NotSync,
1600  (const void **)&not_sync))
1601  {
1602  *is_key_frame = !CFBooleanGetValue(not_sync);
1603  } else {
1604  *is_key_frame = true;
1605  }
1606 }
1607 
1608 static int is_post_sei_nal_type(int nal_type){
1609  return nal_type != H264_NAL_SEI &&
1610  nal_type != H264_NAL_SPS &&
1611  nal_type != H264_NAL_PPS &&
1612  nal_type != H264_NAL_AUD;
1613 }
1614 
1615 /*
1616  * Finds the sei message start/size of type find_sei_type.
1617  * If more than one of that type exists, the last one is returned.
1618  */
1619 static int find_sei_end(AVCodecContext *avctx,
1620  uint8_t *nal_data,
1621  size_t nal_size,
1622  uint8_t **sei_end)
1623 {
1624  int nal_type;
1625  size_t sei_payload_size = 0;
1626  int sei_payload_type = 0;
1627  *sei_end = NULL;
1628  uint8_t *nal_start = nal_data;
1629 
1630  if (!nal_size)
1631  return 0;
1632 
1633  nal_type = *nal_data & 0x1F;
1634  if (nal_type != H264_NAL_SEI)
1635  return 0;
1636 
1637  nal_data++;
1638  nal_size--;
1639 
1640  if (nal_data[nal_size - 1] == 0x80)
1641  nal_size--;
1642 
1643  while (nal_size > 0 && *nal_data > 0) {
1644  do{
1645  sei_payload_type += *nal_data;
1646  nal_data++;
1647  nal_size--;
1648  } while (nal_size > 0 && *nal_data == 0xFF);
1649 
1650  if (!nal_size) {
1651  av_log(avctx, AV_LOG_ERROR, "Unexpected end of SEI NAL Unit parsing type.\n");
1652  return AVERROR_INVALIDDATA;
1653  }
1654 
1655  do{
1656  sei_payload_size += *nal_data;
1657  nal_data++;
1658  nal_size--;
1659  } while (nal_size > 0 && *nal_data == 0xFF);
1660 
1661  if (nal_size < sei_payload_size) {
1662  av_log(avctx, AV_LOG_ERROR, "Unexpected end of SEI NAL Unit parsing size.\n");
1663  return AVERROR_INVALIDDATA;
1664  }
1665 
1666  nal_data += sei_payload_size;
1667  nal_size -= sei_payload_size;
1668  }
1669 
1670  *sei_end = nal_data;
1671 
1672  return nal_data - nal_start + 1;
1673 }
1674 
1675 /**
1676  * Copies the data inserting emulation prevention bytes as needed.
1677  * Existing data in the destination can be taken into account by providing
1678  * dst with a dst_offset > 0.
1679  *
1680  * @return The number of bytes copied on success. On failure, the negative of
1681  * the number of bytes needed to copy src is returned.
1682  */
1683 static int copy_emulation_prev(const uint8_t *src,
1684  size_t src_size,
1685  uint8_t *dst,
1686  ssize_t dst_offset,
1687  size_t dst_size)
1688 {
1689  int zeros = 0;
1690  int wrote_bytes;
1691  uint8_t* dst_start;
1692  uint8_t* dst_end = dst + dst_size;
1693  const uint8_t* src_end = src + src_size;
1694  int start_at = dst_offset > 2 ? dst_offset - 2 : 0;
1695  int i;
1696  for (i = start_at; i < dst_offset && i < dst_size; i++) {
1697  if (!dst[i])
1698  zeros++;
1699  else
1700  zeros = 0;
1701  }
1702 
1703  dst += dst_offset;
1704  dst_start = dst;
1705  for (; src < src_end; src++, dst++) {
1706  if (zeros == 2) {
1707  int insert_ep3_byte = *src <= 3;
1708  if (insert_ep3_byte) {
1709  if (dst < dst_end)
1710  *dst = 3;
1711  dst++;
1712  }
1713 
1714  zeros = 0;
1715  }
1716 
1717  if (dst < dst_end)
1718  *dst = *src;
1719 
1720  if (!*src)
1721  zeros++;
1722  else
1723  zeros = 0;
1724  }
1725 
1726  wrote_bytes = dst - dst_start;
1727 
1728  if (dst > dst_end)
1729  return -wrote_bytes;
1730 
1731  return wrote_bytes;
1732 }
1733 
1734 static int write_sei(const ExtraSEI *sei,
1735  int sei_type,
1736  uint8_t *dst,
1737  size_t dst_size)
1738 {
1739  uint8_t *sei_start = dst;
1740  size_t remaining_sei_size = sei->size;
1741  size_t remaining_dst_size = dst_size;
1742  int header_bytes;
1743  int bytes_written;
1744  ssize_t offset;
1745 
1746  if (!remaining_dst_size)
1747  return AVERROR_BUFFER_TOO_SMALL;
1748 
1749  while (sei_type && remaining_dst_size != 0) {
1750  int sei_byte = sei_type > 255 ? 255 : sei_type;
1751  *dst = sei_byte;
1752 
1753  sei_type -= sei_byte;
1754  dst++;
1755  remaining_dst_size--;
1756  }
1757 
1758  if (!dst_size)
1759  return AVERROR_BUFFER_TOO_SMALL;
1760 
1761  while (remaining_sei_size && remaining_dst_size != 0) {
1762  int size_byte = remaining_sei_size > 255 ? 255 : remaining_sei_size;
1763  *dst = size_byte;
1764 
1765  remaining_sei_size -= size_byte;
1766  dst++;
1767  remaining_dst_size--;
1768  }
1769 
1770  if (remaining_dst_size < sei->size)
1771  return AVERROR_BUFFER_TOO_SMALL;
1772 
1773  header_bytes = dst - sei_start;
1774 
1775  offset = header_bytes;
1776  bytes_written = copy_emulation_prev(sei->data,
1777  sei->size,
1778  sei_start,
1779  offset,
1780  dst_size);
1781  if (bytes_written < 0)
1782  return AVERROR_BUFFER_TOO_SMALL;
1783 
1784  bytes_written += header_bytes;
1785  return bytes_written;
1786 }
1787 
1788 /**
1789  * Copies NAL units and replaces length codes with
1790  * H.264 Annex B start codes. On failure, the contents of
1791  * dst_data may have been modified.
1792  *
1793  * @param length_code_size Byte length of each length code
1794  * @param sample_buffer NAL units prefixed with length codes.
1795  * @param sei Optional A53 closed captions SEI data.
1796  * @param dst_data Must be zeroed before calling this function.
1797  * Contains the copied NAL units prefixed with
1798  * start codes when the function returns
1799  * successfully.
1800  * @param dst_size Length of dst_data
1801  * @return 0 on success
1802  * AVERROR_INVALIDDATA if length_code_size is invalid
1803  * AVERROR_BUFFER_TOO_SMALL if dst_data is too small
1804  * or if a length_code in src_data specifies data beyond
1805  * the end of its buffer.
1806  */
1807 static int copy_replace_length_codes(
1808  AVCodecContext *avctx,
1809  size_t length_code_size,
1810  CMSampleBufferRef sample_buffer,
1811  ExtraSEI *sei,
1812  uint8_t *dst_data,
1813  size_t dst_size)
1814 {
1815  size_t src_size = CMSampleBufferGetTotalSampleSize(sample_buffer);
1816  size_t remaining_src_size = src_size;
1817  size_t remaining_dst_size = dst_size;
1818  size_t src_offset = 0;
1819  int wrote_sei = 0;
1820  int status;
1821  uint8_t size_buf[4];
1822  uint8_t nal_type;
1823  CMBlockBufferRef block = CMSampleBufferGetDataBuffer(sample_buffer);
1824 
1825  if (length_code_size > 4) {
1826  return AVERROR_INVALIDDATA;
1827  }
1828 
1829  while (remaining_src_size > 0) {
1830  size_t curr_src_len;
1831  size_t curr_dst_len;
1832  size_t box_len = 0;
1833  size_t i;
1834 
1835  uint8_t *dst_box;
1836 
1837  status = CMBlockBufferCopyDataBytes(block,
1838  src_offset,
1839  length_code_size,
1840  size_buf);
1841  if (status) {
1842  av_log(avctx, AV_LOG_ERROR, "Cannot copy length: %d\n", status);
1843  return AVERROR_EXTERNAL;
1844  }
1845 
1846  status = CMBlockBufferCopyDataBytes(block,
1847  src_offset + length_code_size,
1848  1,
1849  &nal_type);
1850 
1851  if (status) {
1852  av_log(avctx, AV_LOG_ERROR, "Cannot copy type: %d\n", status);
1853  return AVERROR_EXTERNAL;
1854  }
1855 
1856  nal_type &= 0x1F;
1857 
1858  for (i = 0; i < length_code_size; i++) {
1859  box_len <<= 8;
1860  box_len |= size_buf[i];
1861  }
1862 
1863  if (sei && !wrote_sei && is_post_sei_nal_type(nal_type)) {
1864  //No SEI NAL unit - insert.
1865  int wrote_bytes;
1866 
1867  memcpy(dst_data, start_code, sizeof(start_code));
1868  dst_data += sizeof(start_code);
1869  remaining_dst_size -= sizeof(start_code);
1870 
1871  *dst_data = H264_NAL_SEI;
1872  dst_data++;
1873  remaining_dst_size--;
1874 
1875  wrote_bytes = write_sei(sei,
1876  SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35,
1877  dst_data,
1878  remaining_dst_size);
1879 
1880  if (wrote_bytes < 0)
1881  return wrote_bytes;
1882 
1883  remaining_dst_size -= wrote_bytes;
1884  dst_data += wrote_bytes;
1885 
1886  if (remaining_dst_size <= 0)
1887  return AVERROR_BUFFER_TOO_SMALL;
1888 
1889  *dst_data = 0x80;
1890 
1891  dst_data++;
1892  remaining_dst_size--;
1893 
1894  wrote_sei = 1;
1895  }
1896 
1897  curr_src_len = box_len + length_code_size;
1898  curr_dst_len = box_len + sizeof(start_code);
1899 
1900  if (remaining_src_size < curr_src_len) {
1901  return AVERROR_BUFFER_TOO_SMALL;
1902  }
1903 
1904  if (remaining_dst_size < curr_dst_len) {
1905  return AVERROR_BUFFER_TOO_SMALL;
1906  }
1907 
1908  dst_box = dst_data + sizeof(start_code);
1909 
1910  memcpy(dst_data, start_code, sizeof(start_code));
1911  status = CMBlockBufferCopyDataBytes(block,
1912  src_offset + length_code_size,
1913  box_len,
1914  dst_box);
1915 
1916  if (status) {
1917  av_log(avctx, AV_LOG_ERROR, "Cannot copy data: %d\n", status);
1918  return AVERROR_EXTERNAL;
1919  }
1920 
1921  if (sei && !wrote_sei && nal_type == H264_NAL_SEI) {
1922  //Found SEI NAL unit - append.
1923  int wrote_bytes;
1924  int old_sei_length;
1925  int extra_bytes;
1926  uint8_t *new_sei;
1927  old_sei_length = find_sei_end(avctx, dst_box, box_len, &new_sei);
1928  if (old_sei_length < 0)
1929  return status;
1930 
1931  wrote_bytes = write_sei(sei,
1932  SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35,
1933  new_sei,
1934  remaining_dst_size - old_sei_length);
1935  if (wrote_bytes < 0)
1936  return wrote_bytes;
1937 
1938  if (new_sei + wrote_bytes >= dst_data + remaining_dst_size)
1939  return AVERROR_BUFFER_TOO_SMALL;
1940 
1941  new_sei[wrote_bytes++] = 0x80;
1942  extra_bytes = wrote_bytes - (dst_box + box_len - new_sei);
1943 
1944  dst_data += extra_bytes;
1945  remaining_dst_size -= extra_bytes;
1946 
1947  wrote_sei = 1;
1948  }
1949 
1950  src_offset += curr_src_len;
1951  dst_data += curr_dst_len;
1952 
1953  remaining_src_size -= curr_src_len;
1954  remaining_dst_size -= curr_dst_len;
1955  }
1956 
1957  return 0;
1958 }
1959 
1960 /**
1961  * Returns a sufficient number of bytes to contain the sei data.
1962  * It may be greater than the minimum required.
1963  */
1964 static int get_sei_msg_bytes(const ExtraSEI* sei, int type){
1965  int copied_size;
1966  if (sei->size == 0)
1967  return 0;
1968 
1969  copied_size = -copy_emulation_prev(sei->data,
1970  sei->size,
1971  NULL,
1972  0,
1973  0);
1974 
1975  if ((sei->size % 255) == 0) //may result in an extra byte
1976  copied_size++;
1977 
1978  return copied_size + sei->size / 255 + 1 + type / 255 + 1;
1979 }
1980 
1981 static int vtenc_cm_to_avpacket(
1982  AVCodecContext *avctx,
1983  CMSampleBufferRef sample_buffer,
1984  AVPacket *pkt,
1985  ExtraSEI *sei)
1986 {
1987  VTEncContext *vtctx = avctx->priv_data;
1988 
1989  int status;
1990  bool is_key_frame;
1991  bool add_header;
1992  size_t length_code_size;
1993  size_t header_size = 0;
1994  size_t in_buf_size;
1995  size_t out_buf_size;
1996  size_t sei_nalu_size = 0;
1997  int64_t dts_delta;
1998  int64_t time_base_num;
1999  int nalu_count;
2000  CMTime pts;
2001  CMTime dts;
2002  CMVideoFormatDescriptionRef vid_fmt;
2003 
2004  vtenc_get_frame_info(sample_buffer, &is_key_frame);
2005 
2006  if (vtctx->get_param_set_func) {
2007  status = get_length_code_size(avctx, sample_buffer, &length_code_size);
2008  if (status) return status;
2009 
2010  add_header = is_key_frame && !(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER);
2011 
2012  if (add_header) {
2013  vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
2014  if (!vid_fmt) {
2015  av_log(avctx, AV_LOG_ERROR, "Cannot get format description.\n");
2016  return AVERROR_EXTERNAL;
2017  }
2018 
2019  int status = get_params_size(avctx, vid_fmt, &header_size);
2020  if (status) return status;
2021  }
2022 
2023  status = count_nalus(length_code_size, sample_buffer, &nalu_count);
2024  if(status)
2025  return status;
2026 
2027  if (sei) {
2028  size_t msg_size = get_sei_msg_bytes(sei,
2029  SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35);
2030 
2031  sei_nalu_size = sizeof(start_code) + 1 + msg_size + 1;
2032  }
2033 
2034  in_buf_size = CMSampleBufferGetTotalSampleSize(sample_buffer);
2035  out_buf_size = header_size +
2036  in_buf_size +
2037  sei_nalu_size +
2038  nalu_count * ((int)sizeof(start_code) - (int)length_code_size);
2039 
2040  status = ff_get_encode_buffer(avctx, pkt, out_buf_size, 0);
2041  if (status < 0)
2042  return status;
2043 
2044  if (add_header) {
2045  status = copy_param_sets(avctx, vid_fmt, pkt->data, out_buf_size);
2046  if(status) return status;
2047  }
2048 
2049  status = copy_replace_length_codes(
2050  avctx,
2051  length_code_size,
2052  sample_buffer,
2053  sei,
2054  pkt->data + header_size,
2055  pkt->size - header_size
2056  );
2057 
2058  if (status) {
2059  av_log(avctx, AV_LOG_ERROR, "Error copying packet data: %d\n", status);
2060  return status;
2061  }
2062  } else {
2063  size_t len;
2064  CMBlockBufferRef buf = CMSampleBufferGetDataBuffer(sample_buffer);
2065  if (!buf) {
2066  av_log(avctx, AV_LOG_ERROR, "Error getting block buffer\n");
2067  return AVERROR_EXTERNAL;
2068  }
2069 
2070  len = CMBlockBufferGetDataLength(buf);
2071 
2072  status = ff_get_encode_buffer(avctx, pkt, len, 0);
2073  if (status < 0)
2074  return status;
2075 
2076  status = CMBlockBufferCopyDataBytes(buf, 0, len, pkt->data);
2077  if (status) {
2078  av_log(avctx, AV_LOG_ERROR, "Error copying packet data: %d\n", status);
2079  return AVERROR_EXTERNAL;
2080  }
2081  }
2082 
2083  if (is_key_frame) {
2084  pkt->flags |= AV_PKT_FLAG_KEY;
2085  }
2086 
2087  pts = CMSampleBufferGetPresentationTimeStamp(sample_buffer);
2088  dts = CMSampleBufferGetDecodeTimeStamp (sample_buffer);
2089 
2090  if (CMTIME_IS_INVALID(dts)) {
2091  if (!vtctx->has_b_frames) {
2092  dts = pts;
2093  } else {
2094  av_log(avctx, AV_LOG_ERROR, "DTS is invalid.\n");
2095  return AVERROR_EXTERNAL;
2096  }
2097  }
2098 
2099  dts_delta = vtctx->dts_delta >= 0 ? vtctx->dts_delta : 0;
2100  time_base_num = avctx->time_base.num;
2101  pkt->pts = pts.value / time_base_num;
2102  pkt->dts = dts.value / time_base_num - dts_delta;
2103 
2104  return 0;
2105 }
2106 
2107 /*
2108  * contiguous_buf_size is 0 if not contiguous, and the size of the buffer
2109  * containing all planes if so.
2110  */
2111 static int get_cv_pixel_info(
2112  AVCodecContext *avctx,
2113  const AVFrame *frame,
2114  int *color,
2115  int *plane_count,
2116  size_t *widths,
2117  size_t *heights,
2118  size_t *strides,
2119  size_t *contiguous_buf_size)
2120 {
2121  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2122  VTEncContext *vtctx = avctx->priv_data;
2123  int av_format = frame->format;
2124  int av_color_range = frame->color_range;
2125  int i;
2126  int range_guessed;
2127  int status;
2128 
2129  if (!desc)
2130  return AVERROR(EINVAL);
2131 
2132  status = get_cv_pixel_format(avctx, av_format, av_color_range, color, &range_guessed);
2133  if (status) {
2134  av_log(avctx,
2135  AV_LOG_ERROR,
2136  "Could not get pixel format for color format '%s' range '%s'.\n",
2137  av_get_pix_fmt_name(av_format),
2138  av_color_range > AVCOL_RANGE_UNSPECIFIED &&
2139  av_color_range < AVCOL_RANGE_NB ?
2140  av_color_range_name(av_color_range) :
2141  "Unknown");
2142 
2143  return AVERROR(EINVAL);
2144  }
2145 
2146  if (range_guessed) {
2147  if (!vtctx->warned_color_range) {
2148  vtctx->warned_color_range = true;
2149  av_log(avctx,
2150  AV_LOG_WARNING,
2151  "Color range not set for %s. Using MPEG range.\n",
2152  av_get_pix_fmt_name(av_format));
2153  }
2154  }
2155 
2156  *plane_count = av_pix_fmt_count_planes(avctx->pix_fmt);
2157 
2158  for (i = 0; i < desc->nb_components; i++) {
2159  int p = desc->comp[i].plane;
2160  bool hasAlpha = (desc->flags & AV_PIX_FMT_FLAG_ALPHA);
2161  bool isAlpha = hasAlpha && (p + 1 == *plane_count);
2162  bool isChroma = (p != 0) && !isAlpha;
2163  int shiftw = isChroma ? desc->log2_chroma_w : 0;
2164  int shifth = isChroma ? desc->log2_chroma_h : 0;
2165  widths[p] = (avctx->width + ((1 << shiftw) >> 1)) >> shiftw;
2166  heights[p] = (avctx->height + ((1 << shifth) >> 1)) >> shifth;
2167  strides[p] = frame->linesize[p];
2168  }
2169 
2170  *contiguous_buf_size = 0;
2171  for (i = 0; i < *plane_count; i++) {
2172  if (i < *plane_count - 1 &&
2173  frame->data[i] + strides[i] * heights[i] != frame->data[i + 1]) {
2174  *contiguous_buf_size = 0;
2175  break;
2176  }
2177 
2178  *contiguous_buf_size += strides[i] * heights[i];
2179  }
2180 
2181  return 0;
2182 }
2183 
2184 //Not used on OSX - frame is never copied.
2185 static int copy_avframe_to_pixel_buffer(AVCodecContext *avctx,
2186  const AVFrame *frame,
2187  CVPixelBufferRef cv_img,
2188  const size_t *plane_strides,
2189  const size_t *plane_rows)
2190 {
2191  int i, j;
2192  size_t plane_count;
2193  int status;
2194  int rows;
2195  int src_stride;
2196  int dst_stride;
2197  uint8_t *src_addr;
2198  uint8_t *dst_addr;
2199  size_t copy_bytes;
2200 
2201  status = CVPixelBufferLockBaseAddress(cv_img, 0);
2202  if (status) {
2203  av_log(
2204  avctx,
2205  AV_LOG_ERROR,
2206  "Error: Could not lock base address of CVPixelBuffer: %d.\n",
2207  status
2208  );
2209  }
2210 
2211  if (CVPixelBufferIsPlanar(cv_img)) {
2212  plane_count = CVPixelBufferGetPlaneCount(cv_img);
2213  for (i = 0; frame->data[i]; i++) {
2214  if (i == plane_count) {
2215  CVPixelBufferUnlockBaseAddress(cv_img, 0);
2216  av_log(avctx,
2217  AV_LOG_ERROR,
2218  "Error: different number of planes in AVFrame and CVPixelBuffer.\n"
2219  );
2220 
2221  return AVERROR_EXTERNAL;
2222  }
2223 
2224  dst_addr = (uint8_t*)CVPixelBufferGetBaseAddressOfPlane(cv_img, i);
2225  src_addr = (uint8_t*)frame->data[i];
2226  dst_stride = CVPixelBufferGetBytesPerRowOfPlane(cv_img, i);
2227  src_stride = plane_strides[i];
2228  rows = plane_rows[i];
2229 
2230  if (dst_stride == src_stride) {
2231  memcpy(dst_addr, src_addr, src_stride * rows);
2232  } else {
2233  copy_bytes = dst_stride < src_stride ? dst_stride : src_stride;
2234 
2235  for (j = 0; j < rows; j++) {
2236  memcpy(dst_addr + j * dst_stride, src_addr + j * src_stride, copy_bytes);
2237  }
2238  }
2239  }
2240  } else {
2241  if (frame->data[1]) {
2242  CVPixelBufferUnlockBaseAddress(cv_img, 0);
2243  av_log(avctx,
2244  AV_LOG_ERROR,
2245  "Error: different number of planes in AVFrame and non-planar CVPixelBuffer.\n"
2246  );
2247 
2248  return AVERROR_EXTERNAL;
2249  }
2250 
2251  dst_addr = (uint8_t*)CVPixelBufferGetBaseAddress(cv_img);
2252  src_addr = (uint8_t*)frame->data[0];
2253  dst_stride = CVPixelBufferGetBytesPerRow(cv_img);
2254  src_stride = plane_strides[0];
2255  rows = plane_rows[0];
2256 
2257  if (dst_stride == src_stride) {
2258  memcpy(dst_addr, src_addr, src_stride * rows);
2259  } else {
2260  copy_bytes = dst_stride < src_stride ? dst_stride : src_stride;
2261 
2262  for (j = 0; j < rows; j++) {
2263  memcpy(dst_addr + j * dst_stride, src_addr + j * src_stride, copy_bytes);
2264  }
2265  }
2266  }
2267 
2268  status = CVPixelBufferUnlockBaseAddress(cv_img, 0);
2269  if (status) {
2270  av_log(avctx, AV_LOG_ERROR, "Error: Could not unlock CVPixelBuffer base address: %d.\n", status);
2271  return AVERROR_EXTERNAL;
2272  }
2273 
2274  return 0;
2275 }
2276 
2277 static int create_cv_pixel_buffer(AVCodecContext *avctx,
2278  const AVFrame *frame,
2279  CVPixelBufferRef *cv_img)
2280 {
2281  int plane_count;
2282  int color;
2283  size_t widths [AV_NUM_DATA_POINTERS];
2284  size_t heights[AV_NUM_DATA_POINTERS];
2285  size_t strides[AV_NUM_DATA_POINTERS];
2286  int status;
2287  size_t contiguous_buf_size;
2288  CVPixelBufferPoolRef pix_buf_pool;
2289  VTEncContext* vtctx = avctx->priv_data;
2290 
2291  if (avctx->pix_fmt == AV_PIX_FMT_VIDEOTOOLBOX) {
2292  av_assert0(frame->format == AV_PIX_FMT_VIDEOTOOLBOX);
2293 
2294  *cv_img = (CVPixelBufferRef)frame->data[3];
2295  av_assert0(*cv_img);
2296 
2297  CFRetain(*cv_img);
2298  return 0;
2299  }
2300 
2301  memset(widths, 0, sizeof(widths));
2302  memset(heights, 0, sizeof(heights));
2303  memset(strides, 0, sizeof(strides));
2304 
2305  status = get_cv_pixel_info(
2306  avctx,
2307  frame,
2308  &color,
2309  &plane_count,
2310  widths,
2311  heights,
2312  strides,
2313  &contiguous_buf_size
2314  );
2315 
2316  if (status) {
2317  av_log(
2318  avctx,
2319  AV_LOG_ERROR,
2320  "Error: Cannot convert format %d color_range %d: %d\n",
2321  frame->format,
2322  frame->color_range,
2323  status
2324  );
2325 
2326  return AVERROR_EXTERNAL;
2327  }
2328 
2329  pix_buf_pool = VTCompressionSessionGetPixelBufferPool(vtctx->session);
2330  if (!pix_buf_pool) {
2331  /* On iOS, the VT session is invalidated when the APP switches from
2332  * foreground to background and vice versa. Fetch the actual error code
2333  * of the VT session to detect that case and restart the VT session
2334  * accordingly. */
2335  OSStatus vtstatus;
2336 
2337  vtstatus = VTCompressionSessionPrepareToEncodeFrames(vtctx->session);
2338  if (vtstatus == kVTInvalidSessionErr) {
2339  CFRelease(vtctx->session);
2340  vtctx->session = NULL;
2341  status = vtenc_configure_encoder(avctx);
2342  if (status == 0)
2343  pix_buf_pool = VTCompressionSessionGetPixelBufferPool(vtctx->session);
2344  }
2345  if (!pix_buf_pool) {
2346  av_log(avctx, AV_LOG_ERROR, "Could not get pixel buffer pool.\n");
2347  return AVERROR_EXTERNAL;
2348  }
2349  else
2350  av_log(avctx, AV_LOG_WARNING, "VT session restarted because of a "
2351  "kVTInvalidSessionErr error.\n");
2352  }
2353 
2354  status = CVPixelBufferPoolCreatePixelBuffer(NULL,
2355  pix_buf_pool,
2356  cv_img);
2357 
2358 
2359  if (status) {
2360  av_log(avctx, AV_LOG_ERROR, "Could not create pixel buffer from pool: %d.\n", status);
2361  return AVERROR_EXTERNAL;
2362  }
2363 
2364  status = copy_avframe_to_pixel_buffer(avctx, frame, *cv_img, strides, heights);
2365  if (status) {
2366  CFRelease(*cv_img);
2367  *cv_img = NULL;
2368  return status;
2369  }
2370 
2371  return 0;
2372 }
2373 
2374 static int create_encoder_dict_h264(const AVFrame *frame,
2375  CFDictionaryRef* dict_out)
2376 {
2377  CFDictionaryRef dict = NULL;
2378  if (frame->pict_type == AV_PICTURE_TYPE_I) {
2379  const void *keys[] = { kVTEncodeFrameOptionKey_ForceKeyFrame };
2380  const void *vals[] = { kCFBooleanTrue };
2381 
2382  dict = CFDictionaryCreate(NULL, keys, vals, 1, NULL, NULL);
2383  if(!dict) return AVERROR(ENOMEM);
2384  }
2385 
2386  *dict_out = dict;
2387  return 0;
2388 }
2389 
2390 static int vtenc_send_frame(AVCodecContext *avctx,
2391  VTEncContext *vtctx,
2392  const AVFrame *frame)
2393 {
2394  CMTime time;
2395  CFDictionaryRef frame_dict;
2396  CVPixelBufferRef cv_img = NULL;
2397  AVFrameSideData *side_data = NULL;
2398  ExtraSEI *sei = NULL;
2399  int status = create_cv_pixel_buffer(avctx, frame, &cv_img);
2400 
2401  if (status) return status;
2402 
2403  status = create_encoder_dict_h264(frame, &frame_dict);
2404  if (status) {
2405  CFRelease(cv_img);
2406  return status;
2407  }
2408 
2409 #if CONFIG_ATSC_A53
2410  side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2411  if (vtctx->a53_cc && side_data && side_data->size) {
2412  sei = av_mallocz(sizeof(*sei));
2413  if (!sei) {
2414  av_log(avctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
2415  } else {
2416  int ret = ff_alloc_a53_sei(frame, 0, &sei->data, &sei->size);
2417  if (ret < 0) {
2418  av_log(avctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
2419  av_free(sei);
2420  sei = NULL;
2421  }
2422  }
2423  }
2424 #endif
2425 
2426  time = CMTimeMake(frame->pts * avctx->time_base.num, avctx->time_base.den);
2427  status = VTCompressionSessionEncodeFrame(
2428  vtctx->session,
2429  cv_img,
2430  time,
2431  kCMTimeInvalid,
2432  frame_dict,
2433  sei,
2434  NULL
2435  );
2436 
2437  if (frame_dict) CFRelease(frame_dict);
2438  CFRelease(cv_img);
2439 
2440  if (status) {
2441  av_log(avctx, AV_LOG_ERROR, "Error: cannot encode frame: %d\n", status);
2442  return AVERROR_EXTERNAL;
2443  }
2444 
2445  return 0;
2446 }
2447 
2448 static av_cold int vtenc_frame(
2449  AVCodecContext *avctx,
2450  AVPacket *pkt,
2451  const AVFrame *frame,
2452  int *got_packet)
2453 {
2454  VTEncContext *vtctx = avctx->priv_data;
2455  bool get_frame;
2456  int status;
2457  CMSampleBufferRef buf = NULL;
2458  ExtraSEI *sei = NULL;
2459 
2460  if (frame) {
2461  status = vtenc_send_frame(avctx, vtctx, frame);
2462 
2463  if (status) {
2464  status = AVERROR_EXTERNAL;
2465  goto end_nopkt;
2466  }
2467 
2468  if (vtctx->frame_ct_in == 0) {
2469  vtctx->first_pts = frame->pts;
2470  } else if(vtctx->frame_ct_in == vtctx->has_b_frames) {
2471  vtctx->dts_delta = frame->pts - vtctx->first_pts;
2472  }
2473 
2474  vtctx->frame_ct_in++;
2475  } else if(!vtctx->flushing) {
2476  vtctx->flushing = true;
2477 
2478  status = VTCompressionSessionCompleteFrames(vtctx->session,
2479  kCMTimeIndefinite);
2480 
2481  if (status) {
2482  av_log(avctx, AV_LOG_ERROR, "Error flushing frames: %d\n", status);
2483  status = AVERROR_EXTERNAL;
2484  goto end_nopkt;
2485  }
2486  }
2487 
2488  *got_packet = 0;
2489  get_frame = vtctx->dts_delta >= 0 || !frame;
2490  if (!get_frame) {
2491  status = 0;
2492  goto end_nopkt;
2493  }
2494 
2495  status = vtenc_q_pop(vtctx, !frame, &buf, &sei);
2496  if (status) goto end_nopkt;
2497  if (!buf) goto end_nopkt;
2498 
2499  status = vtenc_cm_to_avpacket(avctx, buf, pkt, sei);
2500  if (sei) {
2501  if (sei->data) av_free(sei->data);
2502  av_free(sei);
2503  }
2504  CFRelease(buf);
2505  if (status) goto end_nopkt;
2506 
2507  *got_packet = 1;
2508  return 0;
2509 
2510 end_nopkt:
2511  av_packet_unref(pkt);
2512  return status;
2513 }
2514 
2515 static int vtenc_populate_extradata(AVCodecContext *avctx,
2516  CMVideoCodecType codec_type,
2517  CFStringRef profile_level,
2518  CFNumberRef gamma_level,
2519  CFDictionaryRef enc_info,
2520  CFDictionaryRef pixel_buffer_info)
2521 {
2522  VTEncContext *vtctx = avctx->priv_data;
2523  int status;
2524  CVPixelBufferPoolRef pool = NULL;
2525  CVPixelBufferRef pix_buf = NULL;
2526  CMTime time;
2527  CMSampleBufferRef buf = NULL;
2528 
2529  status = vtenc_create_encoder(avctx,
2530  codec_type,
2531  profile_level,
2532  gamma_level,
2533  enc_info,
2534  pixel_buffer_info,
2535  &vtctx->session);
2536  if (status)
2537  goto pe_cleanup;
2538 
2539  pool = VTCompressionSessionGetPixelBufferPool(vtctx->session);
2540  if(!pool){
2541  av_log(avctx, AV_LOG_ERROR, "Error getting pixel buffer pool.\n");
2542  goto pe_cleanup;
2543  }
2544 
2545  status = CVPixelBufferPoolCreatePixelBuffer(NULL,
2546  pool,
2547  &pix_buf);
2548 
2549  if(status != kCVReturnSuccess){
2550  av_log(avctx, AV_LOG_ERROR, "Error creating frame from pool: %d\n", status);
2551  goto pe_cleanup;
2552  }
2553 
2554  time = CMTimeMake(0, avctx->time_base.den);
2555  status = VTCompressionSessionEncodeFrame(vtctx->session,
2556  pix_buf,
2557  time,
2558  kCMTimeInvalid,
2559  NULL,
2560  NULL,
2561  NULL);
2562 
2563  if (status) {
2564  av_log(avctx,
2565  AV_LOG_ERROR,
2566  "Error sending frame for extradata: %d\n",
2567  status);
2568 
2569  goto pe_cleanup;
2570  }
2571 
2572  //Populates extradata - output frames are flushed and param sets are available.
2573  status = VTCompressionSessionCompleteFrames(vtctx->session,
2574  kCMTimeIndefinite);
2575 
2576  if (status)
2577  goto pe_cleanup;
2578 
2579  status = vtenc_q_pop(vtctx, 0, &buf, NULL);
2580  if (status) {
2581  av_log(avctx, AV_LOG_ERROR, "popping: %d\n", status);
2582  goto pe_cleanup;
2583  }
2584 
2585  CFRelease(buf);
2586 
2587 
2588 
2589 pe_cleanup:
2590  CVPixelBufferRelease(pix_buf);
2591  if(vtctx->session)
2592  CFRelease(vtctx->session);
2593 
2594  vtctx->session = NULL;
2595  vtctx->frame_ct_out = 0;
2596 
2597  av_assert0(status != 0 || (avctx->extradata && avctx->extradata_size > 0));
2598 
2599  return status;
2600 }
2601 
2602 static av_cold int vtenc_close(AVCodecContext *avctx)
2603 {
2604  VTEncContext *vtctx = avctx->priv_data;
2605 
2606  if(!vtctx->session) {
2607  pthread_cond_destroy(&vtctx->cv_sample_sent);
2608  pthread_mutex_destroy(&vtctx->lock);
2609  return 0;
2610  }
2611 
2612  VTCompressionSessionCompleteFrames(vtctx->session,
2613  kCMTimeIndefinite);
2614  clear_frame_queue(vtctx);
2615  pthread_cond_destroy(&vtctx->cv_sample_sent);
2616  pthread_mutex_destroy(&vtctx->lock);
2617  CFRelease(vtctx->session);
2618  vtctx->session = NULL;
2619 
2620  if (vtctx->color_primaries) {
2621  CFRelease(vtctx->color_primaries);
2622  vtctx->color_primaries = NULL;
2623  }
2624 
2625  if (vtctx->transfer_function) {
2626  CFRelease(vtctx->transfer_function);
2627  vtctx->transfer_function = NULL;
2628  }
2629 
2630  if (vtctx->ycbcr_matrix) {
2631  CFRelease(vtctx->ycbcr_matrix);
2632  vtctx->ycbcr_matrix = NULL;
2633  }
2634 
2635  return 0;
2636 }
2637 
2638 static const enum AVPixelFormat avc_pix_fmts[] = {
2639  AV_PIX_FMT_VIDEOTOOLBOX,
2640  AV_PIX_FMT_NV12,
2641  AV_PIX_FMT_YUV420P,
2642  AV_PIX_FMT_NONE
2643 };
2644 
2645 static const enum AVPixelFormat hevc_pix_fmts[] = {
2646  AV_PIX_FMT_VIDEOTOOLBOX,
2647  AV_PIX_FMT_NV12,
2648  AV_PIX_FMT_YUV420P,
2649  AV_PIX_FMT_BGRA,
2650  AV_PIX_FMT_P010LE,
2651  AV_PIX_FMT_NONE
2652 };
2653 
2654 static const enum AVPixelFormat prores_pix_fmts[] = {
2655  AV_PIX_FMT_VIDEOTOOLBOX,
2656  AV_PIX_FMT_YUV420P,
2657 #ifdef kCFCoreFoundationVersionNumber10_7
2658  AV_PIX_FMT_NV12,
2659  AV_PIX_FMT_AYUV64,
2660 #endif
2661  AV_PIX_FMT_UYVY422,
2662 #if HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE
2663  AV_PIX_FMT_P010,
2664 #endif
2665 #if HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE
2666  AV_PIX_FMT_NV16,
2667 #endif
2668 #if HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE
2669  AV_PIX_FMT_P210,
2670 #endif
2671 #if HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE
2672  AV_PIX_FMT_P216,
2673 #endif
2674 #if HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE
2675  AV_PIX_FMT_NV24,
2676 #endif
2677 #if HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE
2678  AV_PIX_FMT_P410,
2679 #endif
2680 #if HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE
2681  AV_PIX_FMT_P416,
2682 #endif
2683  AV_PIX_FMT_BGRA,
2684  AV_PIX_FMT_NONE
2685 };
2686 
2687 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
2688 #define COMMON_OPTIONS \
2689  { "allow_sw", "Allow software encoding", OFFSET(allow_sw), AV_OPT_TYPE_BOOL, \
2690  { .i64 = 0 }, 0, 1, VE }, \
2691  { "require_sw", "Require software encoding", OFFSET(require_sw), AV_OPT_TYPE_BOOL, \
2692  { .i64 = 0 }, 0, 1, VE }, \
2693  { "realtime", "Hint that encoding should happen in real-time if not faster (e.g. capturing from camera).", \
2694  OFFSET(realtime), AV_OPT_TYPE_BOOL, { .i64 = 0 }, -1, 1, VE }, \
2695  { "frames_before", "Other frames will come before the frames in this session. This helps smooth concatenation issues.", \
2696  OFFSET(frames_before), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \
2697  { "frames_after", "Other frames will come after the frames in this session. This helps smooth concatenation issues.", \
2698  OFFSET(frames_after), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \
2699  { "prio_speed", "prioritize encoding speed", OFFSET(prio_speed), AV_OPT_TYPE_BOOL, \
2700  { .i64 = -1 }, -1, 1, VE }, \
2701 
2702 #define OFFSET(x) offsetof(VTEncContext, x)
2703 static const AVOption h264_options[] = {
2704  { "profile", "Profile", OFFSET(profile), AV_OPT_TYPE_INT64, { .i64 = H264_PROF_AUTO }, H264_PROF_AUTO, H264_PROF_COUNT, VE, "profile" },
2705  { "baseline", "Baseline Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_BASELINE }, INT_MIN, INT_MAX, VE, "profile" },
2706  { "main", "Main Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
2707  { "high", "High Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_HIGH }, INT_MIN, INT_MAX, VE, "profile" },
2708  { "extended", "Extend Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_EXTENDED }, INT_MIN, INT_MAX, VE, "profile" },
2709 
2710  { "level", "Level", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, VE, "level" },
2711  { "1.3", "Level 1.3, only available with Baseline Profile", 0, AV_OPT_TYPE_CONST, { .i64 = 13 }, INT_MIN, INT_MAX, VE, "level" },
2712  { "3.0", "Level 3.0", 0, AV_OPT_TYPE_CONST, { .i64 = 30 }, INT_MIN, INT_MAX, VE, "level" },
2713  { "3.1", "Level 3.1", 0, AV_OPT_TYPE_CONST, { .i64 = 31 }, INT_MIN, INT_MAX, VE, "level" },
2714  { "3.2", "Level 3.2", 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, INT_MIN, INT_MAX, VE, "level" },
2715  { "4.0", "Level 4.0", 0, AV_OPT_TYPE_CONST, { .i64 = 40 }, INT_MIN, INT_MAX, VE, "level" },
2716  { "4.1", "Level 4.1", 0, AV_OPT_TYPE_CONST, { .i64 = 41 }, INT_MIN, INT_MAX, VE, "level" },
2717  { "4.2", "Level 4.2", 0, AV_OPT_TYPE_CONST, { .i64 = 42 }, INT_MIN, INT_MAX, VE, "level" },
2718  { "5.0", "Level 5.0", 0, AV_OPT_TYPE_CONST, { .i64 = 50 }, INT_MIN, INT_MAX, VE, "level" },
2719  { "5.1", "Level 5.1", 0, AV_OPT_TYPE_CONST, { .i64 = 51 }, INT_MIN, INT_MAX, VE, "level" },
2720  { "5.2", "Level 5.2", 0, AV_OPT_TYPE_CONST, { .i64 = 52 }, INT_MIN, INT_MAX, VE, "level" },
2721 
2722  { "coder", "Entropy coding", OFFSET(entropy), AV_OPT_TYPE_INT, { .i64 = VT_ENTROPY_NOT_SET }, VT_ENTROPY_NOT_SET, VT_CABAC, VE, "coder" },
2723  { "cavlc", "CAVLC entropy coding", 0, AV_OPT_TYPE_CONST, { .i64 = VT_CAVLC }, INT_MIN, INT_MAX, VE, "coder" },
2724  { "vlc", "CAVLC entropy coding", 0, AV_OPT_TYPE_CONST, { .i64 = VT_CAVLC }, INT_MIN, INT_MAX, VE, "coder" },
2725  { "cabac", "CABAC entropy coding", 0, AV_OPT_TYPE_CONST, { .i64 = VT_CABAC }, INT_MIN, INT_MAX, VE, "coder" },
2726  { "ac", "CABAC entropy coding", 0, AV_OPT_TYPE_CONST, { .i64 = VT_CABAC }, INT_MIN, INT_MAX, VE, "coder" },
2727 
2728  { "a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, VE },
2729 
2730  COMMON_OPTIONS
2731  { NULL },
2732 };
2733 
2734 static const AVClass h264_videotoolbox_class = {
2735  .class_name = "h264_videotoolbox",
2736  .item_name = av_default_item_name,
2737  .option = h264_options,
2738  .version = LIBAVUTIL_VERSION_INT,
2739 };
2740 
2741 const FFCodec ff_h264_videotoolbox_encoder = {
2742  .p.name = "h264_videotoolbox",
2743  .p.long_name = NULL_IF_CONFIG_SMALL("VideoToolbox H.264 Encoder"),
2744  .p.type = AVMEDIA_TYPE_VIDEO,
2745  .p.id = AV_CODEC_ID_H264,
2746  .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY,
2747  .priv_data_size = sizeof(VTEncContext),
2748  .p.pix_fmts = avc_pix_fmts,
2749  .init = vtenc_init,
2750  FF_CODEC_ENCODE_CB(vtenc_frame),
2751  .close = vtenc_close,
2752  .p.priv_class = &h264_videotoolbox_class,
2753  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
2754  FF_CODEC_CAP_INIT_CLEANUP,
2755 };
2756 
2757 static const AVOption hevc_options[] = {
2758  { "profile", "Profile", OFFSET(profile), AV_OPT_TYPE_INT64, { .i64 = HEVC_PROF_AUTO }, HEVC_PROF_AUTO, HEVC_PROF_COUNT, VE, "profile" },
2759  { "main", "Main Profile", 0, AV_OPT_TYPE_CONST, { .i64 = HEVC_PROF_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
2760  { "main10", "Main10 Profile", 0, AV_OPT_TYPE_CONST, { .i64 = HEVC_PROF_MAIN10 }, INT_MIN, INT_MAX, VE, "profile" },
2761 
2762  { "alpha_quality", "Compression quality for the alpha channel", OFFSET(alpha_quality), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0.0, 1.0, VE },
2763 
2764  COMMON_OPTIONS
2765  { NULL },
2766 };
2767 
2768 static const AVClass hevc_videotoolbox_class = {
2769  .class_name = "hevc_videotoolbox",
2770  .item_name = av_default_item_name,
2771  .option = hevc_options,
2772  .version = LIBAVUTIL_VERSION_INT,
2773 };
2774 
2775 const FFCodec ff_hevc_videotoolbox_encoder = {
2776  .p.name = "hevc_videotoolbox",
2777  .p.long_name = NULL_IF_CONFIG_SMALL("VideoToolbox H.265 Encoder"),
2778  .p.type = AVMEDIA_TYPE_VIDEO,
2779  .p.id = AV_CODEC_ID_HEVC,
2780  .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
2781  AV_CODEC_CAP_HARDWARE,
2782  .priv_data_size = sizeof(VTEncContext),
2783  .p.pix_fmts = hevc_pix_fmts,
2784  .init = vtenc_init,
2785  FF_CODEC_ENCODE_CB(vtenc_frame),
2786  .close = vtenc_close,
2787  .p.priv_class = &hevc_videotoolbox_class,
2788  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
2789  FF_CODEC_CAP_INIT_CLEANUP,
2790  .p.wrapper_name = "videotoolbox",
2791 };
2792 
2793 static const AVOption prores_options[] = {
2794  { "profile", "Profile", OFFSET(profile), AV_OPT_TYPE_INT64, { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, FF_PROFILE_PRORES_XQ, VE, "profile" },
2795  { "auto", "Automatically determine based on input format", 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" },
2796  { "proxy", "ProRes 422 Proxy", 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_PRORES_PROXY }, INT_MIN, INT_MAX, VE, "profile" },
2797  { "lt", "ProRes 422 LT", 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_PRORES_LT }, INT_MIN, INT_MAX, VE, "profile" },
2798  { "standard", "ProRes 422", 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_PRORES_STANDARD }, INT_MIN, INT_MAX, VE, "profile" },
2799  { "hq", "ProRes 422 HQ", 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_PRORES_HQ }, INT_MIN, INT_MAX, VE, "profile" },
2800  { "4444", "ProRes 4444", 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_PRORES_4444 }, INT_MIN, INT_MAX, VE, "profile" },
2801  { "xq", "ProRes 4444 XQ", 0, AV_OPT_TYPE_CONST, { .i64 = FF_PROFILE_PRORES_XQ }, INT_MIN, INT_MAX, VE, "profile" },
2802 
2803  COMMON_OPTIONS
2804  { NULL },
2805 };
2806 
2807 static const AVClass prores_videotoolbox_class = {
2808  .class_name = "prores_videotoolbox",
2809  .item_name = av_default_item_name,
2810  .option = prores_options,
2811  .version = LIBAVUTIL_VERSION_INT,
2812 };
2813 
2814 const FFCodec ff_prores_videotoolbox_encoder = {
2815  .p.name = "prores_videotoolbox",
2816  .p.long_name = NULL_IF_CONFIG_SMALL("VideoToolbox ProRes Encoder"),
2817  .p.type = AVMEDIA_TYPE_VIDEO,
2818  .p.id = AV_CODEC_ID_PRORES,
2819  .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
2820  AV_CODEC_CAP_HARDWARE,
2821  .priv_data_size = sizeof(VTEncContext),
2822  .p.pix_fmts = prores_pix_fmts,
2823  .init = vtenc_init,
2824  FF_CODEC_ENCODE_CB(vtenc_frame),
2825  .close = vtenc_close,
2826  .p.priv_class = &prores_videotoolbox_class,
2827  .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
2828  FF_CODEC_CAP_INIT_CLEANUP,
2829  .p.wrapper_name = "videotoolbox",
2830 };
get_vt_hevc_profile_level
static bool get_vt_hevc_profile_level(AVCodecContext *avctx, CFStringRef *profile_level_val)
Definition: videotoolboxenc.c:808
pthread_mutex_t
_fmutex pthread_mutex_t
Definition: os2threads.h:53
kVTProfileLevel_H264_Main_5_1
CFStringRef kVTProfileLevel_H264_Main_5_1
Definition: videotoolboxenc.c:83
H264_PROF_EXTENDED
@ H264_PROF_EXTENDED
Definition: videotoolboxenc.c:179
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:422
H264_NAL_PPS
@ H264_NAL_PPS
Definition: h264.h:42
kVTCompressionPropertyKey_H264EntropyMode
CFStringRef kVTCompressionPropertyKey_H264EntropyMode
Definition: videotoolboxenc.c:72
ff_alloc_a53_sei
int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, void **data, size_t *sei_size)
Check AVFrame for A53 side data and allocate and fill SEI message with A53 info.
Definition: atsc_a53.c:25
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
ff_h264_videotoolbox_encoder
const FFCodec ff_h264_videotoolbox_encoder
Definition: videotoolboxenc.c:2741
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
kVTProfileLevel_H264_Extended_AutoLevel
CFStringRef kVTProfileLevel_H264_Extended_AutoLevel
Definition: videotoolboxenc.c:96
ff_hevc_videotoolbox_encoder
const FFCodec ff_hevc_videotoolbox_encoder
Definition: videotoolboxenc.c:2775
FF_PROFILE_PRORES_XQ
#define FF_PROFILE_PRORES_XQ
Definition: avcodec.h:1661
ExtraSEI::size
size_t size
Definition: videotoolboxenc.c:200
status
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
level
uint8_t level
Definition: svq3.c:206
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: codec_internal.h:39
kVTCompressionPropertyKey_RealTime
CFStringRef kVTCompressionPropertyKey_RealTime
Definition: videotoolboxenc.c:101
hevc_pix_fmts
static enum AVPixelFormat hevc_pix_fmts[]
Definition: videotoolboxenc.c:2645
AVERROR
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
opt.h
get_frame
static int get_frame(AVFilterContext *ctx, int is_second)
Definition: vf_nnedi.c:658
AVCodecContext::colorspace
enum AVColorSpace colorspace
YUV colorspace type.
Definition: avcodec.h:966
AVColorTransferCharacteristic
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:496
color
Definition: vf_paletteuse.c:600
vtenc_populate_extradata
static int vtenc_populate_extradata(AVCodecContext *avctx, CMVideoCodecType codec_type, CFStringRef profile_level, CFNumberRef gamma_level, CFDictionaryRef enc_info, CFDictionaryRef pixel_buffer_info)
Definition: videotoolboxenc.c:2515
SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35
@ SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35
Definition: sei.h:34
av_frame_get_side_data
AVFrameSideData * av_frame_get_side_data(const AVFrame *frame, enum AVFrameSideDataType type)
Definition: frame.c:684
vtenc_cm_to_avpacket
static int vtenc_cm_to_avpacket(AVCodecContext *avctx, CMSampleBufferRef sample_buffer, AVPacket *pkt, ExtraSEI *sei)
Definition: videotoolboxenc.c:1981
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2662
AV_CODEC_CAP_HARDWARE
#define AV_CODEC_CAP_HARDWARE
Codec is backed by a hardware implementation.
Definition: codec.h:162
H264_PROF_AUTO
@ H264_PROF_AUTO
Definition: videotoolboxenc.c:175
AV_FRAME_DATA_A53_CC
@ AV_FRAME_DATA_A53_CC
ATSC A53 Part 4 Closed Captions.
Definition: frame.h:59
AVCOL_TRC_LINEAR
@ AVCOL_TRC_LINEAR
"Linear transfer characteristics"
Definition: pixfmt.h:505
pthread_mutex_init
static av_always_inline int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
Definition: os2threads.h:104
matrix
Definition: vc1dsp.c:42
copy_avframe_to_pixel_buffer
static int copy_avframe_to_pixel_buffer(AVCodecContext *avctx, const AVFrame *frame, CVPixelBufferRef cv_img, const size_t *plane_strides, const size_t *plane_rows)
Definition: videotoolboxenc.c:2185
vtenc_output_callback
static void vtenc_output_callback(void *ctx, void *sourceFrameCtx, OSStatus status, VTEncodeInfoFlags flags, CMSampleBufferRef sample_buffer)
Definition: videotoolboxenc.c:630
AV_CODEC_FLAG_QSCALE
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:216
get_vt_h264_profile_level
static bool get_vt_h264_profile_level(AVCodecContext *avctx, CFStringRef *profile_level_val)
Definition: videotoolboxenc.c:703
write_sei
static int write_sei(const ExtraSEI *sei, int sei_type, uint8_t *dst, size_t dst_size)
Definition: videotoolboxenc.c:1734
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
start_code
static const uint8_t start_code[]
Definition: videotoolboxenc.c:196
pixdesc.h
kVTProfileLevel_H264_High_AutoLevel
CFStringRef kVTProfileLevel_H264_High_AutoLevel
Definition: videotoolboxenc.c:94
AVCodecContext::color_trc
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
Definition: avcodec.h:959
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:599
internal.h
AVPacket::data
uint8_t * data
Definition: packet.h:374
AVOption
AVOption.
Definition: opt.h:251
encode.h
AVCOL_TRC_UNSPECIFIED
@ AVCOL_TRC_UNSPECIFIED
Definition: pixfmt.h:499
kVTProfileLevel_H264_High_4_0
CFStringRef kVTProfileLevel_H264_High_4_0
Definition: videotoolboxenc.c:89
data
const char data[16]
Definition: mxf.c:143
FFCodec
Definition: codec_internal.h:112
VTEncContext::lock
pthread_mutex_t lock
Definition: videotoolboxenc.c:219
AVCOL_SPC_RGB
@ AVCOL_SPC_RGB
order of coefficients is actually GBR, also IEC 61966-2-1 (sRGB), YZX and ST 428-1
Definition: pixfmt.h:526
AVCOL_TRC_BT2020_12
@ AVCOL_TRC_BT2020_12
ITU-R BT2020 for 12-bit system.
Definition: pixfmt.h:512
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
VTEncContext::profile
int64_t profile
Definition: videotoolboxenc.c:233
AVColorPrimaries
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:471
HEVC_PROF_MAIN10
@ HEVC_PROF_MAIN10
Definition: videotoolboxenc.c:192
codec_type
enum AVMediaType codec_type
Definition: rtp.c:37
BufNode::sei
ExtraSEI * sei
Definition: videotoolboxenc.c:205
AV_PKT_FLAG_KEY
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: packet.h:429
quality
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about quality
Definition: rate_distortion.txt:12
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:30
AV_CODEC_FLAG_GLOBAL_HEADER
#define AV_CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
Definition: avcodec.h:274
copy_replace_length_codes
static int copy_replace_length_codes(AVCodecContext *avctx, size_t length_code_size, CMSampleBufferRef sample_buffer, ExtraSEI *sei, uint8_t *dst_data, size_t dst_size)
Copies NAL units and replaces length codes with H.264 Annex B start codes.
Definition: videotoolboxenc.c:1807
vtenc_create_encoder
static int vtenc_create_encoder(AVCodecContext *avctx, CMVideoCodecType codec_type, CFStringRef profile_level, CFNumberRef gamma_level, CFDictionaryRef enc_info, CFDictionaryRef pixel_buffer_info, VTCompressionSessionRef *session)
Definition: videotoolboxenc.c:1076
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2702
AVCOL_SPC_BT470BG
@ AVCOL_SPC_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
Definition: pixfmt.h:531
vtenc_get_frame_info
static void vtenc_get_frame_info(CMSampleBufferRef buffer, bool *is_key_frame)
Definition: videotoolboxenc.c:1581
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:116
get_cv_pixel_format
static int get_cv_pixel_format(AVCodecContext *avctx, enum AVPixelFormat fmt, enum AVColorRange range, int *av_pixel_format, int *range_guessed)
Definition: videotoolboxenc.c:837
av_color_space_name
const char * av_color_space_name(enum AVColorSpace space)
Definition: pixdesc.c:3050
vtenc_close
static av_cold int vtenc_close(AVCodecContext *avctx)
Definition: videotoolboxenc.c:2602
AVCOL_RANGE_NB
@ AVCOL_RANGE_NB
Not part of ABI.
Definition: pixfmt.h:600
AVCOL_TRC_GAMMA28
@ AVCOL_TRC_GAMMA28
also ITU-R BT470BG
Definition: pixfmt.h:502
add_color_attr
static void add_color_attr(AVCodecContext *avctx, CFMutableDictionaryRef dict)
Definition: videotoolboxenc.c:852
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:469
VTEncContext::allow_sw
int allow_sw
Definition: videotoolboxenc.c:240
kCVImageBufferYCbCrMatrix_ITU_R_2020
CFStringRef kCVImageBufferYCbCrMatrix_ITU_R_2020
Definition: videotoolboxenc.c:70
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
AVERROR_BUFFER_TOO_SMALL
#define AVERROR_BUFFER_TOO_SMALL
Buffer too small.
Definition: error.h:53
pts
static int64_t pts
Definition: transcode_aac.c:654
VTEncContext::flushing
bool flushing
Definition: videotoolboxenc.c:245
FF_CODEC_ENCODE_CB
#define FF_CODEC_ENCODE_CB(func)
Definition: codec_internal.h:263
kCMVideoCodecType_HEVCWithAlpha
@ kCMVideoCodecType_HEVCWithAlpha
Definition: videotoolboxenc.c:47
HEVC_PROF_COUNT
@ HEVC_PROF_COUNT
Definition: videotoolboxenc.c:193
create_encoder_dict_h264
static int create_encoder_dict_h264(const AVFrame *frame, CFDictionaryRef *dict_out)
Definition: videotoolboxenc.c:2374
av_reduce
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
AVRational::num
int num
Numerator.
Definition: rational.h:59
FF_PROFILE_PRORES_LT
#define FF_PROFILE_PRORES_LT
Definition: avcodec.h:1657
AVCOL_TRC_GAMMA22
@ AVCOL_TRC_GAMMA22
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:501
kVTProfileLevel_HEVC_Main10_AutoLevel
CFStringRef kVTProfileLevel_HEVC_Main10_AutoLevel
Definition: videotoolboxenc.c:99
av_bswap32
#define av_bswap32
Definition: bswap.h:33
h264_options
static const AVOption h264_options[]
Definition: videotoolboxenc.c:2703
VTEncContext::realtime
int realtime
Definition: videotoolboxenc.c:236
avassert.h
get_params_size
static int get_params_size(AVCodecContext *avctx, CMVideoFormatDescriptionRef vid_fmt, size_t *size)
Get the parameter sets from a CMSampleBufferRef.
Definition: videotoolboxenc.c:463
AVCodecContext::color_primaries
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
Definition: avcodec.h:952
VTEncContext::dts_delta
int64_t dts_delta
Definition: videotoolboxenc.c:231
pkt
AVPacket * pkt
Definition: movenc.c:59
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
AVFrameSideData::size
size_t size
Definition: frame.h:234
av_cold
#define av_cold
Definition: attributes.h:90
H264_NAL_SPS
@ H264_NAL_SPS
Definition: h264.h:41
VTEncContext::first_pts
int64_t first_pts
Definition: videotoolboxenc.c:230
kCVPixelFormatType_420YpCbCr10BiPlanarFullRange
@ kCVPixelFormatType_420YpCbCr10BiPlanarFullRange
Definition: videotoolboxenc.c:51
compat_keys
static struct @164 compat_keys
avc_pix_fmts
static enum AVPixelFormat avc_pix_fmts[]
Definition: videotoolboxenc.c:2638
kVTProfileLevel_H264_High_4_2
CFStringRef kVTProfileLevel_H264_High_4_2
Definition: videotoolboxenc.c:91
AVCodecContext::extradata_size
int extradata_size
Definition: avcodec.h:491
AVCodecContext::has_b_frames
int has_b_frames
Size of the frame reordering buffer in the decoder.
Definition: avcodec.h:685
VTEncContext::frames_after
int frames_after
Definition: videotoolboxenc.c:238
VTEncContext::async_error
int async_error
Definition: videotoolboxenc.c:222
hevc_options
static const AVOption hevc_options[]
Definition: videotoolboxenc.c:2757
AVCodecContext::global_quality
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:455
prores_pix_fmts
static enum AVPixelFormat prores_pix_fmts[]
Definition: videotoolboxenc.c:2654
VT_H264Profile
VT_H264Profile
Definition: videotoolboxenc.c:174
VT_CABAC
@ VT_CABAC
Definition: videotoolboxenc.c:186
prores_options
static const AVOption prores_options[]
Definition: videotoolboxenc.c:2793
AVCOL_SPC_SMPTE170M
@ AVCOL_SPC_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
Definition: pixfmt.h:532
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:227
VTEncContext::cv_sample_sent
pthread_cond_t cv_sample_sent
Definition: videotoolboxenc.c:220
VTEncContext::transfer_function
CFStringRef transfer_function
Definition: videotoolboxenc.c:216
info
MIPS optimizations info
Definition: mips.txt:2
H264_PROF_MAIN
@ H264_PROF_MAIN
Definition: videotoolboxenc.c:177
loadVTEncSymbols
static void loadVTEncSymbols()
Definition: videotoolboxenc.c:122
AV_OPT_TYPE_INT64
@ AV_OPT_TYPE_INT64
Definition: opt.h:226
FF_PROFILE_UNKNOWN
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:1549
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
VTEncContext::alpha_quality
double alpha_quality
Definition: videotoolboxenc.c:242
CMVideoFormatDescriptionGetHEVCParameterSetAtIndex
getParameterSetAtIndex CMVideoFormatDescriptionGetHEVCParameterSetAtIndex
Definition: videotoolboxenc.c:108
AV_PIX_FMT_FLAG_ALPHA
#define AV_PIX_FMT_FLAG_ALPHA
The pixel format has an alpha channel.
Definition: pixdesc.h:147
ctx
AVFormatContext * ctx
Definition: movenc.c:48
HEVC_PROF_AUTO
@ HEVC_PROF_AUTO
Definition: videotoolboxenc.c:190
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
AVCodecContext::rc_max_rate
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:1214
AVCOL_PRI_UNSPECIFIED
@ AVCOL_PRI_UNSPECIFIED
Definition: pixfmt.h:474
kCMVideoCodecType_HEVC
@ kCMVideoCodecType_HEVC
Definition: videotoolboxenc.c:43
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:77
AVCOL_PRI_BT470BG
@ AVCOL_PRI_BT470BG
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
Definition: pixfmt.h:478
AVCodecContext::codec_id
enum AVCodecID codec_id
Definition: avcodec.h:399
getParameterSetAtIndex
OSStatus(* getParameterSetAtIndex)(CMFormatDescriptionRef videoDesc, size_t parameterSetIndex, const uint8_t **parameterSetPointerOut, size_t *parameterSetSizeOut, size_t *parameterSetCountOut, int *NALUnitHeaderLengthOut)
Definition: videotoolboxenc.c:59
set_extradata
static int set_extradata(AVCodecContext *avctx, CMSampleBufferRef sample_buffer)
Definition: videotoolboxenc.c:581
AVCOL_PRI_SMPTE170M
@ AVCOL_PRI_SMPTE170M
also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
Definition: pixfmt.h:479
av_color_range_name
const char * av_color_range_name(enum AVColorRange range)
Definition: pixdesc.c:2990
VTEncContext::frame_ct_in
int64_t frame_ct_in
Definition: videotoolboxenc.c:228
kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder
CFStringRef kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder
Definition: videotoolboxenc.c:106
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
kVTProfileLevel_HEVC_Main_AutoLevel
CFStringRef kVTProfileLevel_HEVC_Main_AutoLevel
Definition: videotoolboxenc.c:98
AVCodecContext::color_range
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:973
prores_videotoolbox_class
static const AVClass prores_videotoolbox_class
Definition: videotoolboxenc.c:2807
BufNode
Definition: videotoolboxenc.c:203
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
kVTProfileLevel_H264_Baseline_5_2
CFStringRef kVTProfileLevel_H264_Baseline_5_2
Definition: videotoolboxenc.c:80
h264_videotoolbox_class
static const AVClass h264_videotoolbox_class
Definition: videotoolboxenc.c:2734
AVCodecContext::bit_rate
int64_t bit_rate
the average bitrate
Definition: avcodec.h:439
AVCOL_PRI_BT709
@ AVCOL_PRI_BT709
also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP 177 Annex B
Definition: pixfmt.h:473
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
AV_PICTURE_TYPE_I
@ AV_PICTURE_TYPE_I
Intra.
Definition: avutil.h:274
AV_PIX_FMT_P410
#define AV_PIX_FMT_P410
Definition: pixfmt.h:463
create_cv_pixel_buffer_info
static int create_cv_pixel_buffer_info(AVCodecContext *avctx, CFMutableDictionaryRef *dict)
Definition: videotoolboxenc.c:874
av_color_primaries_name
const char * av_color_primaries_name(enum AVColorPrimaries primaries)
Definition: pixdesc.c:3008
AVCOL_TRC_BT2020_10
@ AVCOL_TRC_BT2020_10
ITU-R BT2020 for 10-bit system.
Definition: pixfmt.h:511
pthread_once
static av_always_inline int pthread_once(pthread_once_t *once_control, void(*init_routine)(void))
Definition: os2threads.h:210
H264_PROF_BASELINE
@ H264_PROF_BASELINE
Definition: videotoolboxenc.c:176
vtenc_qscale_enabled
static bool vtenc_qscale_enabled(void)
Definition: videotoolboxenc.c:1071
VTH264Entropy
VTH264Entropy
Definition: videotoolboxenc.c:183
sei
static int FUNC() sei(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEI *current)
Definition: cbs_h264_syntax_template.c:825
ExtraSEI::data
void * data
Definition: videotoolboxenc.c:199
AVCOL_RANGE_UNSPECIFIED
@ AVCOL_RANGE_UNSPECIFIED
Definition: pixfmt.h:565
pthread_mutex_unlock
#define pthread_mutex_unlock(a)
Definition: ffprobe.c:77
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:47
AVCOL_PRI_BT2020
@ AVCOL_PRI_BT2020
ITU-R BT2020.
Definition: pixfmt.h:482
get_cv_transfer_function
static int get_cv_transfer_function(AVCodecContext *avctx, CFStringRef *transfer_fnc, CFNumberRef *gamma_level)
Definition: videotoolboxenc.c:975
AVCodecContext::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avcodec.h:512
AVCOL_TRC_SMPTE2084
@ AVCOL_TRC_SMPTE2084
SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems.
Definition: pixfmt.h:513
hwcontext_videotoolbox.h
VTEncContext::a53_cc
int a53_cc
Definition: videotoolboxenc.c:250
VT_ENTROPY_NOT_SET
@ VT_ENTROPY_NOT_SET
Definition: videotoolboxenc.c:184
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
AVPacket::size
int size
Definition: packet.h:375
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
AVCodecContext::gop_size
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:584
AVCOL_TRC_SMPTE240M
@ AVCOL_TRC_SMPTE240M
Definition: pixfmt.h:504
FF_PROFILE_PRORES_HQ
#define FF_PROFILE_PRORES_HQ
Definition: avcodec.h:1659
codec_internal.h
FF_PROFILE_PRORES_STANDARD
#define FF_PROFILE_PRORES_STANDARD
Definition: avcodec.h:1658
vt_release_num
static void vt_release_num(CFNumberRef *refPtr)
NULL-safe release of *refPtr, and sets value to NULL.
Definition: videotoolboxenc.c:263
kCVImageBufferTransferFunction_ITU_R_2020
CFStringRef kCVImageBufferTransferFunction_ITU_R_2020
Definition: videotoolboxenc.c:69
size
int size
Definition: twinvq_data.h:10344
color
static const uint32_t color[16+AV_CLASS_CATEGORY_NB]
Definition: log.c:94
AV_NUM_DATA_POINTERS
#define AV_NUM_DATA_POINTERS
Definition: frame.h:326
MKBETAG
#define MKBETAG(a, b, c, d)
Definition: macros.h:56
H264_PROF_COUNT
@ H264_PROF_COUNT
Definition: videotoolboxenc.c:180
VTEncContext::frame_ct_out
int64_t frame_ct_out
Definition: videotoolboxenc.c:227
VTEncContext::entropy
int entropy
Definition: videotoolboxenc.c:235
create_cv_pixel_buffer
static int create_cv_pixel_buffer(AVCodecContext *avctx, const AVFrame *frame, CVPixelBufferRef *cv_img)
Definition: videotoolboxenc.c:2277
AV_PIX_FMT_AYUV64
#define AV_PIX_FMT_AYUV64
Definition: pixfmt.h:454
kVTProfileLevel_H264_Baseline_4_2
CFStringRef kVTProfileLevel_H264_Baseline_4_2
Definition: videotoolboxenc.c:77
kVTProfileLevel_H264_Main_5_2
CFStringRef kVTProfileLevel_H264_Main_5_2
Definition: videotoolboxenc.c:84
hevc_videotoolbox_class
static const AVClass hevc_videotoolbox_class
Definition: videotoolboxenc.c:2768
AV_PIX_FMT_NV16
@ AV_PIX_FMT_NV16
interleaved chroma YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:191
kVTProfileLevel_H264_Main_AutoLevel
CFStringRef kVTProfileLevel_H264_Main_AutoLevel
Definition: videotoolboxenc.c:85
AVPacket::dts
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed.
Definition: packet.h:373
AVERROR_EXTERNAL
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:59
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
VTEncContext::frames_before
int frames_before
Definition: videotoolboxenc.c:237
ExtraSEI
Definition: videotoolboxenc.c:198
AVPacket::flags
int flags
A combination of AV_PKT_FLAG values.
Definition: packet.h:380
AV_PIX_FMT_P216
#define AV_PIX_FMT_P216
Definition: pixfmt.h:464
AV_PIX_FMT_P210
#define AV_PIX_FMT_P210
Definition: pixfmt.h:462
kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality
CFStringRef kVTCompressionPropertyKey_PrioritizeEncodingSpeedOverQuality
Definition: videotoolboxenc.c:103
pthread_cond_destroy
static av_always_inline int pthread_cond_destroy(pthread_cond_t *cond)
Definition: os2threads.h:144
AVCOL_TRC_BT709
@ AVCOL_TRC_BT709
also ITU-R BT1361
Definition: pixfmt.h:498
kVTH264EntropyMode_CABAC
CFStringRef kVTH264EntropyMode_CABAC
Definition: videotoolboxenc.c:74
VTEncContext::get_param_set_func
getParameterSetAtIndex get_param_set_func
Definition: videotoolboxenc.c:217
pthread_mutex_destroy
static av_always_inline int pthread_mutex_destroy(pthread_mutex_t *mutex)
Definition: os2threads.h:112
kVTProfileLevel_H264_Baseline_AutoLevel
CFStringRef kVTProfileLevel_H264_Baseline_AutoLevel
Definition: videotoolboxenc.c:81
AVCOL_SPC_SMPTE240M
@ AVCOL_SPC_SMPTE240M
derived from 170M primaries and D65 white point, 170M is derived from BT470 System M's primaries
Definition: pixfmt.h:533
H264_NAL_AUD
@ H264_NAL_AUD
Definition: h264.h:43
AV_PIX_FMT_VIDEOTOOLBOX
@ AV_PIX_FMT_VIDEOTOOLBOX
hardware decoding through Videotoolbox
Definition: pixfmt.h:274
h264_sei.h
TARGET_CPU_ARM64
#define TARGET_CPU_ARM64
Definition: videotoolboxenc.c:56
BufNode::error
int error
Definition: videotoolboxenc.c:207
vtenc_q_pop
static int vtenc_q_pop(VTEncContext *vtctx, bool wait, CMSampleBufferRef *buf, ExtraSEI **sei)
Definition: videotoolboxenc.c:298
set_async_error
static void set_async_error(VTEncContext *vtctx, int err)
Definition: videotoolboxenc.c:272
COMMON_OPTIONS
#define COMMON_OPTIONS
Definition: videotoolboxenc.c:2688
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
AVPacket::pts
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: packet.h:367
AVCOL_SPC_BT2020_NCL
@ AVCOL_SPC_BT2020_NCL
ITU-R BT2020 non-constant luminance system.
Definition: pixfmt.h:536
AVCodecContext::extradata
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:490
VTEncContext::ycbcr_matrix
CFStringRef ycbcr_matrix
Definition: videotoolboxenc.c:214
AV_PIX_FMT_NV24
@ AV_PIX_FMT_NV24
planar YUV 4:4:4, 24bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:340
GET_SYM
#define GET_SYM(symbol, defaultVal)
Definition: videotoolboxenc.c:111
copy_emulation_prev
static int copy_emulation_prev(const uint8_t *src, size_t src_size, uint8_t *dst, ssize_t dst_offset, size_t dst_size)
Copies the data inserting emulation prevention bytes as needed.
Definition: videotoolboxenc.c:1683
VTEncContext::has_b_frames
int has_b_frames
Definition: videotoolboxenc.c:246
AV_CODEC_ID_HEVC
@ AV_CODEC_ID_HEVC
Definition: codec_id.h:224
kVTProfileLevel_H264_Baseline_5_1
CFStringRef kVTProfileLevel_H264_Baseline_5_1
Definition: videotoolboxenc.c:79
count_nalus
static int count_nalus(size_t length_code_size, CMSampleBufferRef sample_buffer, int *count)
Definition: videotoolboxenc.c:375
FF_CODEC_CAP_INIT_THREADSAFE
#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: codec_internal.h:31
VTEncContext::level
int level
Definition: videotoolboxenc.c:234
is_post_sei_nal_type
static int is_post_sei_nal_type(int nal_type)
Definition: videotoolboxenc.c:1608
BufNode::next
struct BufNode * next
Definition: videotoolboxenc.c:206
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:264
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:203
len
int len
Definition: vorbis_enc_data.h:426
pthread_cond_t
Definition: os2threads.h:58
profile
int profile
Definition: mxfenc.c:2005
AVCOL_SPC_UNSPECIFIED
@ AVCOL_SPC_UNSPECIFIED
Definition: pixfmt.h:528
AVCodecContext::height
int height
Definition: avcodec.h:562
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:599
vtenc_q_push
static void vtenc_q_push(VTEncContext *vtctx, CMSampleBufferRef buffer, ExtraSEI *sei)
Definition: videotoolboxenc.c:348
AVCOL_RANGE_MPEG
@ AVCOL_RANGE_MPEG
Narrow or limited range content.
Definition: pixfmt.h:582
once_ctrl
static pthread_once_t once_ctrl
Definition: videotoolboxenc.c:120
kVTProfileLevel_H264_Baseline_5_0
CFStringRef kVTProfileLevel_H264_Baseline_5_0
Definition: videotoolboxenc.c:78
avcodec.h
ret
ret
Definition: filter_design.txt:187
VTEncContext
Definition: videotoolboxenc.c:210
AV_PIX_FMT_NV12
@ AV_PIX_FMT_NV12
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:89
AVClass::class_name
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:71
frame
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
Definition: filter_design.txt:264
FF_PROFILE_PRORES_4444
#define FF_PROFILE_PRORES_4444
Definition: avcodec.h:1660
FF_PROFILE_PRORES_PROXY
#define FF_PROFILE_PRORES_PROXY
Definition: avcodec.h:1656
atsc_a53.h
kVTProfileLevel_H264_Baseline_4_0
CFStringRef kVTProfileLevel_H264_Baseline_4_0
Definition: videotoolboxenc.c:76
clear_frame_queue
static void clear_frame_queue(VTEncContext *vtctx)
Definition: videotoolboxenc.c:293
vtenc_configure_encoder
static int vtenc_configure_encoder(AVCodecContext *avctx)
Definition: videotoolboxenc.c:1425
kVTProfileLevel_H264_High_5_2
CFStringRef kVTProfileLevel_H264_High_5_2
Definition: videotoolboxenc.c:93
VTEncContext::session
VTCompressionSessionRef session
Definition: videotoolboxenc.c:213
HEVC_PROF_MAIN
@ HEVC_PROF_MAIN
Definition: videotoolboxenc.c:191
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
pthread_cond_signal
static av_always_inline int pthread_cond_signal(pthread_cond_t *cond)
Definition: os2threads.h:152
AV_PIX_FMT_UYVY422
@ AV_PIX_FMT_UYVY422
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
AVCodecContext
main external API structure.
Definition: avcodec.h:389
VT_HEVCProfile
VT_HEVCProfile
Definition: videotoolboxenc.c:189
AVCOL_TRC_ARIB_STD_B67
@ AVCOL_TRC_ARIB_STD_B67
ARIB STD-B67, known as "Hybrid log-gamma".
Definition: pixfmt.h:517
kCVImageBufferColorPrimaries_ITU_R_2020
CFStringRef kCVImageBufferColorPrimaries_ITU_R_2020
Definition: videotoolboxenc.c:68
kVTH264EntropyMode_CAVLC
CFStringRef kVTH264EntropyMode_CAVLC
Definition: videotoolboxenc.c:73
kVTProfileLevel_H264_High_3_1
CFStringRef kVTProfileLevel_H264_High_3_1
Definition: videotoolboxenc.c:87
kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder
CFStringRef kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder
Definition: videotoolboxenc.c:105
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
ff_get_encode_buffer
int ff_get_encode_buffer(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int flags)
Get a buffer for a packet.
Definition: encode.c:79
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
VTEncContext::prio_speed
int prio_speed
Definition: videotoolboxenc.c:243
get_cv_pixel_info
static int get_cv_pixel_info(AVCodecContext *avctx, const AVFrame *frame, int *color, int *plane_count, size_t *widths, size_t *heights, size_t *strides, size_t *contiguous_buf_size)
Definition: videotoolboxenc.c:2111
AV_CODEC_CAP_DELAY
#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: codec.h:82
pthread_once_t
Definition: os2threads.h:66
copy_param_sets
static int copy_param_sets(AVCodecContext *avctx, CMVideoFormatDescriptionRef vid_fmt, uint8_t *dst, size_t dst_size)
Definition: videotoolboxenc.c:517
pthread_cond_wait
static av_always_inline int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
Definition: os2threads.h:192
AV_PIX_FMT_P010
#define AV_PIX_FMT_P010
Definition: pixfmt.h:455
kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
@ kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
Definition: videotoolboxenc.c:52
desc
const char * desc
Definition: libsvtav1.c:83
get_cv_ycbcr_matrix
static int get_cv_ycbcr_matrix(AVCodecContext *avctx, CFStringRef *matrix)
Definition: videotoolboxenc.c:1038
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
OFFSET
#define OFFSET(x)
Definition: videotoolboxenc.c:2702
kVTProfileLevel_H264_Extended_5_0
CFStringRef kVTProfileLevel_H264_Extended_5_0
Definition: videotoolboxenc.c:95
AVCodecContext::max_b_frames
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:661
kVTProfileLevel_H264_High_5_1
CFStringRef kVTProfileLevel_H264_High_5_1
Definition: videotoolboxenc.c:92
vtenc_send_frame
static int vtenc_send_frame(AVCodecContext *avctx, VTEncContext *vtctx, const AVFrame *frame)
Definition: videotoolboxenc.c:2390
VE
#define VE
Definition: videotoolboxenc.c:2687
kVTProfileLevel_H264_High_4_1
CFStringRef kVTProfileLevel_H264_High_4_1
Definition: videotoolboxenc.c:90
AV_PIX_FMT_P010LE
@ AV_PIX_FMT_P010LE
like NV12, with 10bpp per component, data in the high bits, zeros in the low bits,...
Definition: pixfmt.h:276
AVFrameSideData
Structure to hold side data for an AVFrame.
Definition: frame.h:231
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
av_free
#define av_free(p)
Definition: tableprint_vlc.h:33
AVCodecContext::codec_tag
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
Definition: avcodec.h:414
ff_prores_videotoolbox_encoder
const FFCodec ff_prores_videotoolbox_encoder
Definition: videotoolboxenc.c:2814
AVPacket
This structure stores compressed data.
Definition: packet.h:351
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:416
AV_PIX_FMT_P416
#define AV_PIX_FMT_P416
Definition: pixfmt.h:465
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
get_sei_msg_bytes
static int get_sei_msg_bytes(const ExtraSEI *sei, int type)
Returns a sufficient number of bytes to contain the sei data.
Definition: videotoolboxenc.c:1964
vtenc_frame
static av_cold int vtenc_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: videotoolboxenc.c:2448
kVTProfileLevel_H264_High_3_2
CFStringRef kVTProfileLevel_H264_High_3_2
Definition: videotoolboxenc.c:88
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
kVTProfileLevel_H264_High_3_0
CFStringRef kVTProfileLevel_H264_High_3_0
Definition: videotoolboxenc.c:86
VTEncContext::require_sw
int require_sw
Definition: videotoolboxenc.c:241
find_sei_end
static int find_sei_end(AVCodecContext *avctx, uint8_t *nal_data, size_t nal_size, uint8_t **sei_end)
Definition: videotoolboxenc.c:1619
av_map_videotoolbox_format_from_pixfmt2
uint32_t av_map_videotoolbox_format_from_pixfmt2(enum AVPixelFormat pix_fmt, bool full_range)
Same as av_map_videotoolbox_format_from_pixfmt function, but can map and return full range pixel form...
Definition: hwcontext_videotoolbox.c:152
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:562
VTEncContext::q_tail
BufNode * q_tail
Definition: videotoolboxenc.c:225
h264.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
VTEncContext::codec_id
enum AVCodecID codec_id
Definition: videotoolboxenc.c:212
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
pthread_cond_init
static av_always_inline int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
Definition: os2threads.h:133
VTEncContext::q_head
BufNode * q_head
Definition: videotoolboxenc.c:224
AVCodecContext::sw_pix_fmt
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1740
avstring.h
FF_QP2LAMBDA
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
AVCOL_SPC_BT709
@ AVCOL_SPC_BT709
also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / derived in SMPTE RP 177 Annex B
Definition: pixfmt.h:527
H264_PROF_HIGH
@ H264_PROF_HIGH
Definition: videotoolboxenc.c:178
AVColorRange
AVColorRange
Visual content value range.
Definition: pixfmt.h:564
get_cm_codec_type
static CMVideoCodecType get_cm_codec_type(AVCodecContext *avctx, int64_t profile, double alpha_quality)
Definition: videotoolboxenc.c:414
int
int
Definition: ffmpeg_filter.c:153
kVTProfileLevel_H264_Main_4_2
CFStringRef kVTProfileLevel_H264_Main_4_2
Definition: videotoolboxenc.c:82
H264_NAL_SEI
@ H264_NAL_SEI
Definition: h264.h:40
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
VT_CAVLC
@ VT_CAVLC
Definition: videotoolboxenc.c:185
PTHREAD_ONCE_INIT
#define PTHREAD_ONCE_INIT
Definition: os2threads.h:71
VTEncContext::color_primaries
CFStringRef color_primaries
Definition: videotoolboxenc.c:215
av_color_transfer_name
const char * av_color_transfer_name(enum AVColorTransferCharacteristic transfer)
Definition: pixdesc.c:3029
BufNode::cm_buffer
CMSampleBufferRef cm_buffer
Definition: videotoolboxenc.c:204
AVCodecContext::sample_aspect_ratio
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:759
VTEncContext::warned_color_range
bool warned_color_range
Definition: videotoolboxenc.c:247
get_length_code_size
static int get_length_code_size(AVCodecContext *avctx, CMSampleBufferRef sample_buffer, size_t *size)
Definition: videotoolboxenc.c:666
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2582
vtenc_init
static av_cold int vtenc_init(AVCodecContext *avctx)
Definition: videotoolboxenc.c:1547
AV_CODEC_ID_PRORES
@ AV_CODEC_ID_PRORES
Definition: codec_id.h:198
get_cv_color_primaries
static int get_cv_color_primaries(AVCodecContext *avctx, CFStringRef *primaries)
Definition: videotoolboxenc.c:941
pthread_mutex_lock
#define pthread_mutex_lock(a)
Definition: ffprobe.c:73
kVTCompressionPropertyKey_TargetQualityForAlpha
CFStringRef kVTCompressionPropertyKey_TargetQualityForAlpha
Definition: videotoolboxenc.c:102
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