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 "internal.h"
33 #include <pthread.h>
34 #include "h264.h"
35 #include "h264_sei.h"
36 #include <dlfcn.h>
37
38 #if !HAVE_KCMVIDEOCODECTYPE_HEVC
39 enum { kCMVideoCodecType_HEVC = 'hvc1' };
40 #endif
41
42 #if !HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE
43 enum { kCVPixelFormatType_420YpCbCr10BiPlanarFullRange = 'xf20' };
44 enum { kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange = 'x420' };
45 #endif
46
47 typedef OSStatus (*getParameterSetAtIndex)(CMFormatDescriptionRef videoDesc,
48 size_t parameterSetIndex,
49 const uint8_t **parameterSetPointerOut,
50 size_t *parameterSetSizeOut,
51 size_t *parameterSetCountOut,
52 int *NALUnitHeaderLengthOut);
53
54 //These symbols may not be present
55 static struct{
56 CFStringRef kCVImageBufferColorPrimaries_ITU_R_2020;
57 CFStringRef kCVImageBufferTransferFunction_ITU_R_2020;
58 CFStringRef kCVImageBufferYCbCrMatrix_ITU_R_2020;
59
60 CFStringRef kVTCompressionPropertyKey_H264EntropyMode;
61 CFStringRef kVTH264EntropyMode_CAVLC;
62 CFStringRef kVTH264EntropyMode_CABAC;
63
64 CFStringRef kVTProfileLevel_H264_Baseline_4_0;
65 CFStringRef kVTProfileLevel_H264_Baseline_4_2;
66 CFStringRef kVTProfileLevel_H264_Baseline_5_0;
67 CFStringRef kVTProfileLevel_H264_Baseline_5_1;
68 CFStringRef kVTProfileLevel_H264_Baseline_5_2;
69 CFStringRef kVTProfileLevel_H264_Baseline_AutoLevel;
70 CFStringRef kVTProfileLevel_H264_Main_4_2;
71 CFStringRef kVTProfileLevel_H264_Main_5_1;
72 CFStringRef kVTProfileLevel_H264_Main_5_2;
73 CFStringRef kVTProfileLevel_H264_Main_AutoLevel;
74 CFStringRef kVTProfileLevel_H264_High_3_0;
75 CFStringRef kVTProfileLevel_H264_High_3_1;
76 CFStringRef kVTProfileLevel_H264_High_3_2;
77 CFStringRef kVTProfileLevel_H264_High_4_0;
78 CFStringRef kVTProfileLevel_H264_High_4_1;
79 CFStringRef kVTProfileLevel_H264_High_4_2;
80 CFStringRef kVTProfileLevel_H264_High_5_1;
81 CFStringRef kVTProfileLevel_H264_High_5_2;
82 CFStringRef kVTProfileLevel_H264_High_AutoLevel;
83 CFStringRef kVTProfileLevel_H264_Extended_5_0;
84 CFStringRef kVTProfileLevel_H264_Extended_AutoLevel;
85
86 CFStringRef kVTProfileLevel_HEVC_Main_AutoLevel;
87 CFStringRef kVTProfileLevel_HEVC_Main10_AutoLevel;
88
89 CFStringRef kVTCompressionPropertyKey_RealTime;
90
91 CFStringRef kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder;
92 CFStringRef kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder;
93
94 getParameterSetAtIndex CMVideoFormatDescriptionGetHEVCParameterSetAtIndex;
95 } compat_keys;
96
97 #define GET_SYM(symbol, defaultVal) \
98 do{ \
99 CFStringRef* handle = (CFStringRef*)dlsym(RTLD_DEFAULT, #symbol); \
100 if(!handle) \
101 compat_keys.symbol = CFSTR(defaultVal); \
102 else \
103 compat_keys.symbol = *handle; \
104 }while(0)
105
106 static pthread_once_t once_ctrl = PTHREAD_ONCE_INIT;
107
loadVTEncSymbols()108 static void loadVTEncSymbols(){
109 compat_keys.CMVideoFormatDescriptionGetHEVCParameterSetAtIndex =
110 (getParameterSetAtIndex)dlsym(
111 RTLD_DEFAULT,
112 "CMVideoFormatDescriptionGetHEVCParameterSetAtIndex"
113 );
114
115 GET_SYM(kCVImageBufferColorPrimaries_ITU_R_2020, "ITU_R_2020");
116 GET_SYM(kCVImageBufferTransferFunction_ITU_R_2020, "ITU_R_2020");
117 GET_SYM(kCVImageBufferYCbCrMatrix_ITU_R_2020, "ITU_R_2020");
118
119 GET_SYM(kVTCompressionPropertyKey_H264EntropyMode, "H264EntropyMode");
120 GET_SYM(kVTH264EntropyMode_CAVLC, "CAVLC");
121 GET_SYM(kVTH264EntropyMode_CABAC, "CABAC");
122
123 GET_SYM(kVTProfileLevel_H264_Baseline_4_0, "H264_Baseline_4_0");
124 GET_SYM(kVTProfileLevel_H264_Baseline_4_2, "H264_Baseline_4_2");
125 GET_SYM(kVTProfileLevel_H264_Baseline_5_0, "H264_Baseline_5_0");
126 GET_SYM(kVTProfileLevel_H264_Baseline_5_1, "H264_Baseline_5_1");
127 GET_SYM(kVTProfileLevel_H264_Baseline_5_2, "H264_Baseline_5_2");
128 GET_SYM(kVTProfileLevel_H264_Baseline_AutoLevel, "H264_Baseline_AutoLevel");
129 GET_SYM(kVTProfileLevel_H264_Main_4_2, "H264_Main_4_2");
130 GET_SYM(kVTProfileLevel_H264_Main_5_1, "H264_Main_5_1");
131 GET_SYM(kVTProfileLevel_H264_Main_5_2, "H264_Main_5_2");
132 GET_SYM(kVTProfileLevel_H264_Main_AutoLevel, "H264_Main_AutoLevel");
133 GET_SYM(kVTProfileLevel_H264_High_3_0, "H264_High_3_0");
134 GET_SYM(kVTProfileLevel_H264_High_3_1, "H264_High_3_1");
135 GET_SYM(kVTProfileLevel_H264_High_3_2, "H264_High_3_2");
136 GET_SYM(kVTProfileLevel_H264_High_4_0, "H264_High_4_0");
137 GET_SYM(kVTProfileLevel_H264_High_4_1, "H264_High_4_1");
138 GET_SYM(kVTProfileLevel_H264_High_4_2, "H264_High_4_2");
139 GET_SYM(kVTProfileLevel_H264_High_5_1, "H264_High_5_1");
140 GET_SYM(kVTProfileLevel_H264_High_5_2, "H264_High_5_2");
141 GET_SYM(kVTProfileLevel_H264_High_AutoLevel, "H264_High_AutoLevel");
142 GET_SYM(kVTProfileLevel_H264_Extended_5_0, "H264_Extended_5_0");
143 GET_SYM(kVTProfileLevel_H264_Extended_AutoLevel, "H264_Extended_AutoLevel");
144
145 GET_SYM(kVTProfileLevel_HEVC_Main_AutoLevel, "HEVC_Main_AutoLevel");
146 GET_SYM(kVTProfileLevel_HEVC_Main10_AutoLevel, "HEVC_Main10_AutoLevel");
147
148 GET_SYM(kVTCompressionPropertyKey_RealTime, "RealTime");
149
150 GET_SYM(kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder,
151 "EnableHardwareAcceleratedVideoEncoder");
152 GET_SYM(kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder,
153 "RequireHardwareAcceleratedVideoEncoder");
154 }
155
156 typedef enum VT_H264Profile {
157 H264_PROF_AUTO,
158 H264_PROF_BASELINE,
159 H264_PROF_MAIN,
160 H264_PROF_HIGH,
161 H264_PROF_EXTENDED,
162 H264_PROF_COUNT
163 } VT_H264Profile;
164
165 typedef enum VTH264Entropy{
166 VT_ENTROPY_NOT_SET,
167 VT_CAVLC,
168 VT_CABAC
169 } VTH264Entropy;
170
171 typedef enum VT_HEVCProfile {
172 HEVC_PROF_AUTO,
173 HEVC_PROF_MAIN,
174 HEVC_PROF_MAIN10,
175 HEVC_PROF_COUNT
176 } VT_HEVCProfile;
177
178 static const uint8_t start_code[] = { 0, 0, 0, 1 };
179
180 typedef struct ExtraSEI {
181 void *data;
182 size_t size;
183 } ExtraSEI;
184
185 typedef struct BufNode {
186 CMSampleBufferRef cm_buffer;
187 ExtraSEI *sei;
188 struct BufNode* next;
189 int error;
190 } BufNode;
191
192 typedef struct VTEncContext {
193 AVClass *class;
194 enum AVCodecID codec_id;
195 VTCompressionSessionRef session;
196 CFStringRef ycbcr_matrix;
197 CFStringRef color_primaries;
198 CFStringRef transfer_function;
199 getParameterSetAtIndex get_param_set_func;
200
201 pthread_mutex_t lock;
202 pthread_cond_t cv_sample_sent;
203
204 int async_error;
205
206 BufNode *q_head;
207 BufNode *q_tail;
208
209 int64_t frame_ct_out;
210 int64_t frame_ct_in;
211
212 int64_t first_pts;
213 int64_t dts_delta;
214
215 int64_t profile;
216 int64_t level;
217 int64_t entropy;
218 int64_t realtime;
219 int64_t frames_before;
220 int64_t frames_after;
221
222 int64_t allow_sw;
223 int64_t require_sw;
224
225 bool flushing;
226 bool has_b_frames;
227 bool warned_color_range;
228 bool a53_cc;
229 } VTEncContext;
230
231 static int vtenc_populate_extradata(AVCodecContext *avctx,
232 CMVideoCodecType codec_type,
233 CFStringRef profile_level,
234 CFNumberRef gamma_level,
235 CFDictionaryRef enc_info,
236 CFDictionaryRef pixel_buffer_info);
237
238 /**
239 * NULL-safe release of *refPtr, and sets value to NULL.
240 */
vt_release_num(CFNumberRef * refPtr)241 static void vt_release_num(CFNumberRef* refPtr){
242 if (!*refPtr) {
243 return;
244 }
245
246 CFRelease(*refPtr);
247 *refPtr = NULL;
248 }
249
set_async_error(VTEncContext * vtctx,int err)250 static void set_async_error(VTEncContext *vtctx, int err)
251 {
252 BufNode *info;
253
254 pthread_mutex_lock(&vtctx->lock);
255
256 vtctx->async_error = err;
257
258 info = vtctx->q_head;
259 vtctx->q_head = vtctx->q_tail = NULL;
260
261 while (info) {
262 BufNode *next = info->next;
263 CFRelease(info->cm_buffer);
264 av_free(info);
265 info = next;
266 }
267
268 pthread_mutex_unlock(&vtctx->lock);
269 }
270
clear_frame_queue(VTEncContext * vtctx)271 static void clear_frame_queue(VTEncContext *vtctx)
272 {
273 set_async_error(vtctx, 0);
274 }
275
vtenc_q_pop(VTEncContext * vtctx,bool wait,CMSampleBufferRef * buf,ExtraSEI ** sei)276 static int vtenc_q_pop(VTEncContext *vtctx, bool wait, CMSampleBufferRef *buf, ExtraSEI **sei)
277 {
278 BufNode *info;
279
280 pthread_mutex_lock(&vtctx->lock);
281
282 if (vtctx->async_error) {
283 pthread_mutex_unlock(&vtctx->lock);
284 return vtctx->async_error;
285 }
286
287 if (vtctx->flushing && vtctx->frame_ct_in == vtctx->frame_ct_out) {
288 *buf = NULL;
289
290 pthread_mutex_unlock(&vtctx->lock);
291 return 0;
292 }
293
294 while (!vtctx->q_head && !vtctx->async_error && wait) {
295 pthread_cond_wait(&vtctx->cv_sample_sent, &vtctx->lock);
296 }
297
298 if (!vtctx->q_head) {
299 pthread_mutex_unlock(&vtctx->lock);
300 *buf = NULL;
301 return 0;
302 }
303
304 info = vtctx->q_head;
305 vtctx->q_head = vtctx->q_head->next;
306 if (!vtctx->q_head) {
307 vtctx->q_tail = NULL;
308 }
309
310 pthread_mutex_unlock(&vtctx->lock);
311
312 *buf = info->cm_buffer;
313 if (sei && *buf) {
314 *sei = info->sei;
315 } else if (info->sei) {
316 if (info->sei->data) av_free(info->sei->data);
317 av_free(info->sei);
318 }
319 av_free(info);
320
321 vtctx->frame_ct_out++;
322
323 return 0;
324 }
325
vtenc_q_push(VTEncContext * vtctx,CMSampleBufferRef buffer,ExtraSEI * sei)326 static void vtenc_q_push(VTEncContext *vtctx, CMSampleBufferRef buffer, ExtraSEI *sei)
327 {
328 BufNode *info = av_malloc(sizeof(BufNode));
329 if (!info) {
330 set_async_error(vtctx, AVERROR(ENOMEM));
331 return;
332 }
333
334 CFRetain(buffer);
335 info->cm_buffer = buffer;
336 info->sei = sei;
337 info->next = NULL;
338
339 pthread_mutex_lock(&vtctx->lock);
340 pthread_cond_signal(&vtctx->cv_sample_sent);
341
342 if (!vtctx->q_head) {
343 vtctx->q_head = info;
344 } else {
345 vtctx->q_tail->next = info;
346 }
347
348 vtctx->q_tail = info;
349
350 pthread_mutex_unlock(&vtctx->lock);
351 }
352
count_nalus(size_t length_code_size,CMSampleBufferRef sample_buffer,int * count)353 static int count_nalus(size_t length_code_size,
354 CMSampleBufferRef sample_buffer,
355 int *count)
356 {
357 size_t offset = 0;
358 int status;
359 int nalu_ct = 0;
360 uint8_t size_buf[4];
361 size_t src_size = CMSampleBufferGetTotalSampleSize(sample_buffer);
362 CMBlockBufferRef block = CMSampleBufferGetDataBuffer(sample_buffer);
363
364 if (length_code_size > 4)
365 return AVERROR_INVALIDDATA;
366
367 while (offset < src_size) {
368 size_t curr_src_len;
369 size_t box_len = 0;
370 size_t i;
371
372 status = CMBlockBufferCopyDataBytes(block,
373 offset,
374 length_code_size,
375 size_buf);
376
377 for (i = 0; i < length_code_size; i++) {
378 box_len <<= 8;
379 box_len |= size_buf[i];
380 }
381
382 curr_src_len = box_len + length_code_size;
383 offset += curr_src_len;
384
385 nalu_ct++;
386 }
387
388 *count = nalu_ct;
389 return 0;
390 }
391
get_cm_codec_type(enum AVCodecID id)392 static CMVideoCodecType get_cm_codec_type(enum AVCodecID id)
393 {
394 switch (id) {
395 case AV_CODEC_ID_H264: return kCMVideoCodecType_H264;
396 case AV_CODEC_ID_HEVC: return kCMVideoCodecType_HEVC;
397 default: return 0;
398 }
399 }
400
401 /**
402 * Get the parameter sets from a CMSampleBufferRef.
403 * @param dst If *dst isn't NULL, the parameters are copied into existing
404 * memory. *dst_size must be set accordingly when *dst != NULL.
405 * If *dst is NULL, it will be allocated.
406 * In all cases, *dst_size is set to the number of bytes used starting
407 * at *dst.
408 */
get_params_size(AVCodecContext * avctx,CMVideoFormatDescriptionRef vid_fmt,size_t * size)409 static int get_params_size(
410 AVCodecContext *avctx,
411 CMVideoFormatDescriptionRef vid_fmt,
412 size_t *size)
413 {
414 VTEncContext *vtctx = avctx->priv_data;
415 size_t total_size = 0;
416 size_t ps_count;
417 int is_count_bad = 0;
418 size_t i;
419 int status;
420 status = vtctx->get_param_set_func(vid_fmt,
421 0,
422 NULL,
423 NULL,
424 &ps_count,
425 NULL);
426 if (status) {
427 is_count_bad = 1;
428 ps_count = 0;
429 status = 0;
430 }
431
432 for (i = 0; i < ps_count || is_count_bad; i++) {
433 const uint8_t *ps;
434 size_t ps_size;
435 status = vtctx->get_param_set_func(vid_fmt,
436 i,
437 &ps,
438 &ps_size,
439 NULL,
440 NULL);
441 if (status) {
442 /*
443 * When ps_count is invalid, status != 0 ends the loop normally
444 * unless we didn't get any parameter sets.
445 */
446 if (i > 0 && is_count_bad) status = 0;
447
448 break;
449 }
450
451 total_size += ps_size + sizeof(start_code);
452 }
453
454 if (status) {
455 av_log(avctx, AV_LOG_ERROR, "Error getting parameter set sizes: %d\n", status);
456 return AVERROR_EXTERNAL;
457 }
458
459 *size = total_size;
460 return 0;
461 }
462
copy_param_sets(AVCodecContext * avctx,CMVideoFormatDescriptionRef vid_fmt,uint8_t * dst,size_t dst_size)463 static int copy_param_sets(
464 AVCodecContext *avctx,
465 CMVideoFormatDescriptionRef vid_fmt,
466 uint8_t *dst,
467 size_t dst_size)
468 {
469 VTEncContext *vtctx = avctx->priv_data;
470 size_t ps_count;
471 int is_count_bad = 0;
472 int status;
473 size_t offset = 0;
474 size_t i;
475
476 status = vtctx->get_param_set_func(vid_fmt,
477 0,
478 NULL,
479 NULL,
480 &ps_count,
481 NULL);
482 if (status) {
483 is_count_bad = 1;
484 ps_count = 0;
485 status = 0;
486 }
487
488
489 for (i = 0; i < ps_count || is_count_bad; i++) {
490 const uint8_t *ps;
491 size_t ps_size;
492 size_t next_offset;
493
494 status = vtctx->get_param_set_func(vid_fmt,
495 i,
496 &ps,
497 &ps_size,
498 NULL,
499 NULL);
500 if (status) {
501 if (i > 0 && is_count_bad) status = 0;
502
503 break;
504 }
505
506 next_offset = offset + sizeof(start_code) + ps_size;
507 if (dst_size < next_offset) {
508 av_log(avctx, AV_LOG_ERROR, "Error: buffer too small for parameter sets.\n");
509 return AVERROR_BUFFER_TOO_SMALL;
510 }
511
512 memcpy(dst + offset, start_code, sizeof(start_code));
513 offset += sizeof(start_code);
514
515 memcpy(dst + offset, ps, ps_size);
516 offset = next_offset;
517 }
518
519 if (status) {
520 av_log(avctx, AV_LOG_ERROR, "Error getting parameter set data: %d\n", status);
521 return AVERROR_EXTERNAL;
522 }
523
524 return 0;
525 }
526
set_extradata(AVCodecContext * avctx,CMSampleBufferRef sample_buffer)527 static int set_extradata(AVCodecContext *avctx, CMSampleBufferRef sample_buffer)
528 {
529 CMVideoFormatDescriptionRef vid_fmt;
530 size_t total_size;
531 int status;
532
533 vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
534 if (!vid_fmt) {
535 av_log(avctx, AV_LOG_ERROR, "No video format.\n");
536 return AVERROR_EXTERNAL;
537 }
538
539 status = get_params_size(avctx, vid_fmt, &total_size);
540 if (status) {
541 av_log(avctx, AV_LOG_ERROR, "Could not get parameter sets.\n");
542 return status;
543 }
544
545 avctx->extradata = av_mallocz(total_size + AV_INPUT_BUFFER_PADDING_SIZE);
546 if (!avctx->extradata) {
547 return AVERROR(ENOMEM);
548 }
549 avctx->extradata_size = total_size;
550
551 status = copy_param_sets(avctx, vid_fmt, avctx->extradata, total_size);
552
553 if (status) {
554 av_log(avctx, AV_LOG_ERROR, "Could not copy param sets.\n");
555 return status;
556 }
557
558 return 0;
559 }
560
vtenc_output_callback(void * ctx,void * sourceFrameCtx,OSStatus status,VTEncodeInfoFlags flags,CMSampleBufferRef sample_buffer)561 static void vtenc_output_callback(
562 void *ctx,
563 void *sourceFrameCtx,
564 OSStatus status,
565 VTEncodeInfoFlags flags,
566 CMSampleBufferRef sample_buffer)
567 {
568 AVCodecContext *avctx = ctx;
569 VTEncContext *vtctx = avctx->priv_data;
570 ExtraSEI *sei = sourceFrameCtx;
571
572 if (vtctx->async_error) {
573 if(sample_buffer) CFRelease(sample_buffer);
574 return;
575 }
576
577 if (status) {
578 av_log(avctx, AV_LOG_ERROR, "Error encoding frame: %d\n", (int)status);
579 set_async_error(vtctx, AVERROR_EXTERNAL);
580 return;
581 }
582
583 if (!sample_buffer) {
584 return;
585 }
586
587 if (!avctx->extradata && (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)) {
588 int set_status = set_extradata(avctx, sample_buffer);
589 if (set_status) {
590 set_async_error(vtctx, set_status);
591 return;
592 }
593 }
594
595 vtenc_q_push(vtctx, sample_buffer, sei);
596 }
597
get_length_code_size(AVCodecContext * avctx,CMSampleBufferRef sample_buffer,size_t * size)598 static int get_length_code_size(
599 AVCodecContext *avctx,
600 CMSampleBufferRef sample_buffer,
601 size_t *size)
602 {
603 VTEncContext *vtctx = avctx->priv_data;
604 CMVideoFormatDescriptionRef vid_fmt;
605 int isize;
606 int status;
607
608 vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
609 if (!vid_fmt) {
610 av_log(avctx, AV_LOG_ERROR, "Error getting buffer format description.\n");
611 return AVERROR_EXTERNAL;
612 }
613
614 status = vtctx->get_param_set_func(vid_fmt,
615 0,
616 NULL,
617 NULL,
618 NULL,
619 &isize);
620 if (status) {
621 av_log(avctx, AV_LOG_ERROR, "Error getting length code size: %d\n", status);
622 return AVERROR_EXTERNAL;
623 }
624
625 *size = isize;
626 return 0;
627 }
628
629 /*
630 * Returns true on success.
631 *
632 * If profile_level_val is NULL and this method returns true, don't specify the
633 * profile/level to the encoder.
634 */
get_vt_h264_profile_level(AVCodecContext * avctx,CFStringRef * profile_level_val)635 static bool get_vt_h264_profile_level(AVCodecContext *avctx,
636 CFStringRef *profile_level_val)
637 {
638 VTEncContext *vtctx = avctx->priv_data;
639 int64_t profile = vtctx->profile;
640
641 if (profile == H264_PROF_AUTO && vtctx->level) {
642 //Need to pick a profile if level is not auto-selected.
643 profile = vtctx->has_b_frames ? H264_PROF_MAIN : H264_PROF_BASELINE;
644 }
645
646 *profile_level_val = NULL;
647
648 switch (profile) {
649 case H264_PROF_AUTO:
650 return true;
651
652 case H264_PROF_BASELINE:
653 switch (vtctx->level) {
654 case 0: *profile_level_val =
655 compat_keys.kVTProfileLevel_H264_Baseline_AutoLevel; break;
656 case 13: *profile_level_val = kVTProfileLevel_H264_Baseline_1_3; break;
657 case 30: *profile_level_val = kVTProfileLevel_H264_Baseline_3_0; break;
658 case 31: *profile_level_val = kVTProfileLevel_H264_Baseline_3_1; break;
659 case 32: *profile_level_val = kVTProfileLevel_H264_Baseline_3_2; break;
660 case 40: *profile_level_val =
661 compat_keys.kVTProfileLevel_H264_Baseline_4_0; break;
662 case 41: *profile_level_val = kVTProfileLevel_H264_Baseline_4_1; break;
663 case 42: *profile_level_val =
664 compat_keys.kVTProfileLevel_H264_Baseline_4_2; break;
665 case 50: *profile_level_val =
666 compat_keys.kVTProfileLevel_H264_Baseline_5_0; break;
667 case 51: *profile_level_val =
668 compat_keys.kVTProfileLevel_H264_Baseline_5_1; break;
669 case 52: *profile_level_val =
670 compat_keys.kVTProfileLevel_H264_Baseline_5_2; break;
671 }
672 break;
673
674 case H264_PROF_MAIN:
675 switch (vtctx->level) {
676 case 0: *profile_level_val =
677 compat_keys.kVTProfileLevel_H264_Main_AutoLevel; break;
678 case 30: *profile_level_val = kVTProfileLevel_H264_Main_3_0; break;
679 case 31: *profile_level_val = kVTProfileLevel_H264_Main_3_1; break;
680 case 32: *profile_level_val = kVTProfileLevel_H264_Main_3_2; break;
681 case 40: *profile_level_val = kVTProfileLevel_H264_Main_4_0; break;
682 case 41: *profile_level_val = kVTProfileLevel_H264_Main_4_1; break;
683 case 42: *profile_level_val =
684 compat_keys.kVTProfileLevel_H264_Main_4_2; break;
685 case 50: *profile_level_val = kVTProfileLevel_H264_Main_5_0; break;
686 case 51: *profile_level_val =
687 compat_keys.kVTProfileLevel_H264_Main_5_1; break;
688 case 52: *profile_level_val =
689 compat_keys.kVTProfileLevel_H264_Main_5_2; break;
690 }
691 break;
692
693 case H264_PROF_HIGH:
694 switch (vtctx->level) {
695 case 0: *profile_level_val =
696 compat_keys.kVTProfileLevel_H264_High_AutoLevel; break;
697 case 30: *profile_level_val =
698 compat_keys.kVTProfileLevel_H264_High_3_0; break;
699 case 31: *profile_level_val =
700 compat_keys.kVTProfileLevel_H264_High_3_1; break;
701 case 32: *profile_level_val =
702 compat_keys.kVTProfileLevel_H264_High_3_2; break;
703 case 40: *profile_level_val =
704 compat_keys.kVTProfileLevel_H264_High_4_0; break;
705 case 41: *profile_level_val =
706 compat_keys.kVTProfileLevel_H264_High_4_1; break;
707 case 42: *profile_level_val =
708 compat_keys.kVTProfileLevel_H264_High_4_2; break;
709 case 50: *profile_level_val = kVTProfileLevel_H264_High_5_0; break;
710 case 51: *profile_level_val =
711 compat_keys.kVTProfileLevel_H264_High_5_1; break;
712 case 52: *profile_level_val =
713 compat_keys.kVTProfileLevel_H264_High_5_2; break;
714 }
715 break;
716 case H264_PROF_EXTENDED:
717 switch (vtctx->level) {
718 case 0: *profile_level_val =
719 compat_keys.kVTProfileLevel_H264_Extended_AutoLevel; break;
720 case 50: *profile_level_val =
721 compat_keys.kVTProfileLevel_H264_Extended_5_0; break;
722 }
723 break;
724 }
725
726 if (!*profile_level_val) {
727 av_log(avctx, AV_LOG_ERROR, "Invalid Profile/Level.\n");
728 return false;
729 }
730
731 return true;
732 }
733
734 /*
735 * Returns true on success.
736 *
737 * If profile_level_val is NULL and this method returns true, don't specify the
738 * profile/level to the encoder.
739 */
get_vt_hevc_profile_level(AVCodecContext * avctx,CFStringRef * profile_level_val)740 static bool get_vt_hevc_profile_level(AVCodecContext *avctx,
741 CFStringRef *profile_level_val)
742 {
743 VTEncContext *vtctx = avctx->priv_data;
744 int64_t profile = vtctx->profile;
745
746 *profile_level_val = NULL;
747
748 switch (profile) {
749 case HEVC_PROF_AUTO:
750 return true;
751 case HEVC_PROF_MAIN:
752 *profile_level_val =
753 compat_keys.kVTProfileLevel_HEVC_Main_AutoLevel;
754 break;
755 case HEVC_PROF_MAIN10:
756 *profile_level_val =
757 compat_keys.kVTProfileLevel_HEVC_Main10_AutoLevel;
758 break;
759 }
760
761 if (!*profile_level_val) {
762 av_log(avctx, AV_LOG_ERROR, "Invalid Profile/Level.\n");
763 return false;
764 }
765
766 return true;
767 }
768
get_cv_pixel_format(AVCodecContext * avctx,enum AVPixelFormat fmt,enum AVColorRange range,int * av_pixel_format,int * range_guessed)769 static int get_cv_pixel_format(AVCodecContext* avctx,
770 enum AVPixelFormat fmt,
771 enum AVColorRange range,
772 int* av_pixel_format,
773 int* range_guessed)
774 {
775 if (range_guessed) *range_guessed = range != AVCOL_RANGE_MPEG &&
776 range != AVCOL_RANGE_JPEG;
777
778 //MPEG range is used when no range is set
779 if (fmt == AV_PIX_FMT_NV12) {
780 *av_pixel_format = range == AVCOL_RANGE_JPEG ?
781 kCVPixelFormatType_420YpCbCr8BiPlanarFullRange :
782 kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
783 } else if (fmt == AV_PIX_FMT_YUV420P) {
784 *av_pixel_format = range == AVCOL_RANGE_JPEG ?
785 kCVPixelFormatType_420YpCbCr8PlanarFullRange :
786 kCVPixelFormatType_420YpCbCr8Planar;
787 } else if (fmt == AV_PIX_FMT_P010LE) {
788 *av_pixel_format = range == AVCOL_RANGE_JPEG ?
789 kCVPixelFormatType_420YpCbCr10BiPlanarFullRange :
790 kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange;
791 *av_pixel_format = kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange;
792 } else {
793 return AVERROR(EINVAL);
794 }
795
796 return 0;
797 }
798
add_color_attr(AVCodecContext * avctx,CFMutableDictionaryRef dict)799 static void add_color_attr(AVCodecContext *avctx, CFMutableDictionaryRef dict) {
800 VTEncContext *vtctx = avctx->priv_data;
801
802 if (vtctx->color_primaries) {
803 CFDictionarySetValue(dict,
804 kCVImageBufferColorPrimariesKey,
805 vtctx->color_primaries);
806 }
807
808 if (vtctx->transfer_function) {
809 CFDictionarySetValue(dict,
810 kCVImageBufferTransferFunctionKey,
811 vtctx->transfer_function);
812 }
813
814 if (vtctx->ycbcr_matrix) {
815 CFDictionarySetValue(dict,
816 kCVImageBufferYCbCrMatrixKey,
817 vtctx->ycbcr_matrix);
818 }
819 }
820
create_cv_pixel_buffer_info(AVCodecContext * avctx,CFMutableDictionaryRef * dict)821 static int create_cv_pixel_buffer_info(AVCodecContext* avctx,
822 CFMutableDictionaryRef* dict)
823 {
824 CFNumberRef cv_color_format_num = NULL;
825 CFNumberRef width_num = NULL;
826 CFNumberRef height_num = NULL;
827 CFMutableDictionaryRef pixel_buffer_info = NULL;
828 int cv_color_format;
829 int status = get_cv_pixel_format(avctx,
830 avctx->pix_fmt,
831 avctx->color_range,
832 &cv_color_format,
833 NULL);
834 if (status) return status;
835
836 pixel_buffer_info = CFDictionaryCreateMutable(
837 kCFAllocatorDefault,
838 20,
839 &kCFCopyStringDictionaryKeyCallBacks,
840 &kCFTypeDictionaryValueCallBacks);
841
842 if (!pixel_buffer_info) goto pbinfo_nomem;
843
844 cv_color_format_num = CFNumberCreate(kCFAllocatorDefault,
845 kCFNumberSInt32Type,
846 &cv_color_format);
847 if (!cv_color_format_num) goto pbinfo_nomem;
848
849 CFDictionarySetValue(pixel_buffer_info,
850 kCVPixelBufferPixelFormatTypeKey,
851 cv_color_format_num);
852 vt_release_num(&cv_color_format_num);
853
854 width_num = CFNumberCreate(kCFAllocatorDefault,
855 kCFNumberSInt32Type,
856 &avctx->width);
857 if (!width_num) return AVERROR(ENOMEM);
858
859 CFDictionarySetValue(pixel_buffer_info,
860 kCVPixelBufferWidthKey,
861 width_num);
862 vt_release_num(&width_num);
863
864 height_num = CFNumberCreate(kCFAllocatorDefault,
865 kCFNumberSInt32Type,
866 &avctx->height);
867 if (!height_num) goto pbinfo_nomem;
868
869 CFDictionarySetValue(pixel_buffer_info,
870 kCVPixelBufferHeightKey,
871 height_num);
872 vt_release_num(&height_num);
873
874 add_color_attr(avctx, pixel_buffer_info);
875
876 *dict = pixel_buffer_info;
877 return 0;
878
879 pbinfo_nomem:
880 vt_release_num(&cv_color_format_num);
881 vt_release_num(&width_num);
882 vt_release_num(&height_num);
883 if (pixel_buffer_info) CFRelease(pixel_buffer_info);
884
885 return AVERROR(ENOMEM);
886 }
887
get_cv_color_primaries(AVCodecContext * avctx,CFStringRef * primaries)888 static int get_cv_color_primaries(AVCodecContext *avctx,
889 CFStringRef *primaries)
890 {
891 enum AVColorPrimaries pri = avctx->color_primaries;
892 switch (pri) {
893 case AVCOL_PRI_UNSPECIFIED:
894 *primaries = NULL;
895 break;
896
897 case AVCOL_PRI_BT470BG:
898 *primaries = kCVImageBufferColorPrimaries_EBU_3213;
899 break;
900
901 case AVCOL_PRI_SMPTE170M:
902 *primaries = kCVImageBufferColorPrimaries_SMPTE_C;
903 break;
904
905 case AVCOL_PRI_BT709:
906 *primaries = kCVImageBufferColorPrimaries_ITU_R_709_2;
907 break;
908
909 case AVCOL_PRI_BT2020:
910 *primaries = compat_keys.kCVImageBufferColorPrimaries_ITU_R_2020;
911 break;
912
913 default:
914 av_log(avctx, AV_LOG_ERROR, "Color primaries %s is not supported.\n", av_color_primaries_name(pri));
915 *primaries = NULL;
916 return -1;
917 }
918
919 return 0;
920 }
921
get_cv_transfer_function(AVCodecContext * avctx,CFStringRef * transfer_fnc,CFNumberRef * gamma_level)922 static int get_cv_transfer_function(AVCodecContext *avctx,
923 CFStringRef *transfer_fnc,
924 CFNumberRef *gamma_level)
925 {
926 enum AVColorTransferCharacteristic trc = avctx->color_trc;
927 Float32 gamma;
928 *gamma_level = NULL;
929
930 switch (trc) {
931 case AVCOL_TRC_UNSPECIFIED:
932 *transfer_fnc = NULL;
933 break;
934
935 case AVCOL_TRC_BT709:
936 *transfer_fnc = kCVImageBufferTransferFunction_ITU_R_709_2;
937 break;
938
939 case AVCOL_TRC_SMPTE240M:
940 *transfer_fnc = kCVImageBufferTransferFunction_SMPTE_240M_1995;
941 break;
942
943 #if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ
944 case AVCOL_TRC_SMPTE2084:
945 *transfer_fnc = kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ;
946 break;
947 #endif
948 #if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_LINEAR
949 case AVCOL_TRC_LINEAR:
950 *transfer_fnc = kCVImageBufferTransferFunction_Linear;
951 break;
952 #endif
953 #if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG
954 case AVCOL_TRC_ARIB_STD_B67:
955 *transfer_fnc = kCVImageBufferTransferFunction_ITU_R_2100_HLG;
956 break;
957 #endif
958
959 case AVCOL_TRC_GAMMA22:
960 gamma = 2.2;
961 *transfer_fnc = kCVImageBufferTransferFunction_UseGamma;
962 *gamma_level = CFNumberCreate(NULL, kCFNumberFloat32Type, &gamma);
963 break;
964
965 case AVCOL_TRC_GAMMA28:
966 gamma = 2.8;
967 *transfer_fnc = kCVImageBufferTransferFunction_UseGamma;
968 *gamma_level = CFNumberCreate(NULL, kCFNumberFloat32Type, &gamma);
969 break;
970
971 case AVCOL_TRC_BT2020_10:
972 case AVCOL_TRC_BT2020_12:
973 *transfer_fnc = compat_keys.kCVImageBufferTransferFunction_ITU_R_2020;
974 break;
975
976 default:
977 *transfer_fnc = NULL;
978 av_log(avctx, AV_LOG_ERROR, "Transfer function %s is not supported.\n", av_color_transfer_name(trc));
979 return -1;
980 }
981
982 return 0;
983 }
984
get_cv_ycbcr_matrix(AVCodecContext * avctx,CFStringRef * matrix)985 static int get_cv_ycbcr_matrix(AVCodecContext *avctx, CFStringRef *matrix) {
986 switch(avctx->colorspace) {
987 case AVCOL_SPC_BT709:
988 *matrix = kCVImageBufferYCbCrMatrix_ITU_R_709_2;
989 break;
990
991 case AVCOL_SPC_UNSPECIFIED:
992 *matrix = NULL;
993 break;
994
995 case AVCOL_SPC_BT470BG:
996 case AVCOL_SPC_SMPTE170M:
997 *matrix = kCVImageBufferYCbCrMatrix_ITU_R_601_4;
998 break;
999
1000 case AVCOL_SPC_SMPTE240M:
1001 *matrix = kCVImageBufferYCbCrMatrix_SMPTE_240M_1995;
1002 break;
1003
1004 case AVCOL_SPC_BT2020_NCL:
1005 *matrix = compat_keys.kCVImageBufferYCbCrMatrix_ITU_R_2020;
1006 break;
1007
1008 default:
1009 av_log(avctx, AV_LOG_ERROR, "Color space %s is not supported.\n", av_color_space_name(avctx->colorspace));
1010 return -1;
1011 }
1012
1013 return 0;
1014 }
1015
vtenc_create_encoder(AVCodecContext * avctx,CMVideoCodecType codec_type,CFStringRef profile_level,CFNumberRef gamma_level,CFDictionaryRef enc_info,CFDictionaryRef pixel_buffer_info,VTCompressionSessionRef * session)1016 static int vtenc_create_encoder(AVCodecContext *avctx,
1017 CMVideoCodecType codec_type,
1018 CFStringRef profile_level,
1019 CFNumberRef gamma_level,
1020 CFDictionaryRef enc_info,
1021 CFDictionaryRef pixel_buffer_info,
1022 VTCompressionSessionRef *session)
1023 {
1024 VTEncContext *vtctx = avctx->priv_data;
1025 SInt32 bit_rate = avctx->bit_rate;
1026 SInt32 max_rate = avctx->rc_max_rate;
1027 CFNumberRef bit_rate_num;
1028 CFNumberRef bytes_per_second;
1029 CFNumberRef one_second;
1030 CFArrayRef data_rate_limits;
1031 int64_t bytes_per_second_value = 0;
1032 int64_t one_second_value = 0;
1033 void *nums[2];
1034
1035 int status = VTCompressionSessionCreate(kCFAllocatorDefault,
1036 avctx->width,
1037 avctx->height,
1038 codec_type,
1039 enc_info,
1040 pixel_buffer_info,
1041 kCFAllocatorDefault,
1042 vtenc_output_callback,
1043 avctx,
1044 session);
1045
1046 if (status || !vtctx->session) {
1047 av_log(avctx, AV_LOG_ERROR, "Error: cannot create compression session: %d\n", status);
1048
1049 #if !TARGET_OS_IPHONE
1050 if (!vtctx->allow_sw) {
1051 av_log(avctx, AV_LOG_ERROR, "Try -allow_sw 1. The hardware encoder may be busy, or not supported.\n");
1052 }
1053 #endif
1054
1055 return AVERROR_EXTERNAL;
1056 }
1057
1058 bit_rate_num = CFNumberCreate(kCFAllocatorDefault,
1059 kCFNumberSInt32Type,
1060 &bit_rate);
1061 if (!bit_rate_num) return AVERROR(ENOMEM);
1062
1063 status = VTSessionSetProperty(vtctx->session,
1064 kVTCompressionPropertyKey_AverageBitRate,
1065 bit_rate_num);
1066 CFRelease(bit_rate_num);
1067
1068 if (status) {
1069 av_log(avctx, AV_LOG_ERROR, "Error setting bitrate property: %d\n", status);
1070 return AVERROR_EXTERNAL;
1071 }
1072
1073 if (vtctx->codec_id == AV_CODEC_ID_H264 && max_rate > 0) {
1074 // kVTCompressionPropertyKey_DataRateLimits is not available for HEVC
1075 bytes_per_second_value = max_rate >> 3;
1076 bytes_per_second = CFNumberCreate(kCFAllocatorDefault,
1077 kCFNumberSInt64Type,
1078 &bytes_per_second_value);
1079 if (!bytes_per_second) {
1080 return AVERROR(ENOMEM);
1081 }
1082 one_second_value = 1;
1083 one_second = CFNumberCreate(kCFAllocatorDefault,
1084 kCFNumberSInt64Type,
1085 &one_second_value);
1086 if (!one_second) {
1087 CFRelease(bytes_per_second);
1088 return AVERROR(ENOMEM);
1089 }
1090 nums[0] = (void *)bytes_per_second;
1091 nums[1] = (void *)one_second;
1092 data_rate_limits = CFArrayCreate(kCFAllocatorDefault,
1093 (const void **)nums,
1094 2,
1095 &kCFTypeArrayCallBacks);
1096
1097 if (!data_rate_limits) {
1098 CFRelease(bytes_per_second);
1099 CFRelease(one_second);
1100 return AVERROR(ENOMEM);
1101 }
1102 status = VTSessionSetProperty(vtctx->session,
1103 kVTCompressionPropertyKey_DataRateLimits,
1104 data_rate_limits);
1105
1106 CFRelease(bytes_per_second);
1107 CFRelease(one_second);
1108 CFRelease(data_rate_limits);
1109
1110 if (status) {
1111 av_log(avctx, AV_LOG_ERROR, "Error setting max bitrate property: %d\n", status);
1112 return AVERROR_EXTERNAL;
1113 }
1114 }
1115
1116 if (vtctx->codec_id == AV_CODEC_ID_H264) {
1117 // kVTCompressionPropertyKey_ProfileLevel is not available for HEVC
1118 if (profile_level) {
1119 status = VTSessionSetProperty(vtctx->session,
1120 kVTCompressionPropertyKey_ProfileLevel,
1121 profile_level);
1122 if (status) {
1123 av_log(avctx, AV_LOG_ERROR, "Error setting profile/level property: %d. Output will be encoded using a supported profile/level combination.\n", status);
1124 }
1125 }
1126 }
1127
1128 if (avctx->gop_size > 0) {
1129 CFNumberRef interval = CFNumberCreate(kCFAllocatorDefault,
1130 kCFNumberIntType,
1131 &avctx->gop_size);
1132 if (!interval) {
1133 return AVERROR(ENOMEM);
1134 }
1135
1136 status = VTSessionSetProperty(vtctx->session,
1137 kVTCompressionPropertyKey_MaxKeyFrameInterval,
1138 interval);
1139 CFRelease(interval);
1140
1141 if (status) {
1142 av_log(avctx, AV_LOG_ERROR, "Error setting 'max key-frame interval' property: %d\n", status);
1143 return AVERROR_EXTERNAL;
1144 }
1145 }
1146
1147 if (vtctx->frames_before) {
1148 status = VTSessionSetProperty(vtctx->session,
1149 kVTCompressionPropertyKey_MoreFramesBeforeStart,
1150 kCFBooleanTrue);
1151
1152 if (status == kVTPropertyNotSupportedErr) {
1153 av_log(avctx, AV_LOG_WARNING, "frames_before property is not supported on this device. Ignoring.\n");
1154 } else if (status) {
1155 av_log(avctx, AV_LOG_ERROR, "Error setting frames_before property: %d\n", status);
1156 }
1157 }
1158
1159 if (vtctx->frames_after) {
1160 status = VTSessionSetProperty(vtctx->session,
1161 kVTCompressionPropertyKey_MoreFramesAfterEnd,
1162 kCFBooleanTrue);
1163
1164 if (status == kVTPropertyNotSupportedErr) {
1165 av_log(avctx, AV_LOG_WARNING, "frames_after property is not supported on this device. Ignoring.\n");
1166 } else if (status) {
1167 av_log(avctx, AV_LOG_ERROR, "Error setting frames_after property: %d\n", status);
1168 }
1169 }
1170
1171 if (avctx->sample_aspect_ratio.num != 0) {
1172 CFNumberRef num;
1173 CFNumberRef den;
1174 CFMutableDictionaryRef par;
1175 AVRational *avpar = &avctx->sample_aspect_ratio;
1176
1177 av_reduce(&avpar->num, &avpar->den,
1178 avpar->num, avpar->den,
1179 0xFFFFFFFF);
1180
1181 num = CFNumberCreate(kCFAllocatorDefault,
1182 kCFNumberIntType,
1183 &avpar->num);
1184
1185 den = CFNumberCreate(kCFAllocatorDefault,
1186 kCFNumberIntType,
1187 &avpar->den);
1188
1189
1190
1191 par = CFDictionaryCreateMutable(kCFAllocatorDefault,
1192 2,
1193 &kCFCopyStringDictionaryKeyCallBacks,
1194 &kCFTypeDictionaryValueCallBacks);
1195
1196 if (!par || !num || !den) {
1197 if (par) CFRelease(par);
1198 if (num) CFRelease(num);
1199 if (den) CFRelease(den);
1200
1201 return AVERROR(ENOMEM);
1202 }
1203
1204 CFDictionarySetValue(
1205 par,
1206 kCMFormatDescriptionKey_PixelAspectRatioHorizontalSpacing,
1207 num);
1208
1209 CFDictionarySetValue(
1210 par,
1211 kCMFormatDescriptionKey_PixelAspectRatioVerticalSpacing,
1212 den);
1213
1214 status = VTSessionSetProperty(vtctx->session,
1215 kVTCompressionPropertyKey_PixelAspectRatio,
1216 par);
1217
1218 CFRelease(par);
1219 CFRelease(num);
1220 CFRelease(den);
1221
1222 if (status) {
1223 av_log(avctx,
1224 AV_LOG_ERROR,
1225 "Error setting pixel aspect ratio to %d:%d: %d.\n",
1226 avctx->sample_aspect_ratio.num,
1227 avctx->sample_aspect_ratio.den,
1228 status);
1229
1230 return AVERROR_EXTERNAL;
1231 }
1232 }
1233
1234
1235 if (vtctx->transfer_function) {
1236 status = VTSessionSetProperty(vtctx->session,
1237 kVTCompressionPropertyKey_TransferFunction,
1238 vtctx->transfer_function);
1239
1240 if (status) {
1241 av_log(avctx, AV_LOG_WARNING, "Could not set transfer function: %d\n", status);
1242 }
1243 }
1244
1245
1246 if (vtctx->ycbcr_matrix) {
1247 status = VTSessionSetProperty(vtctx->session,
1248 kVTCompressionPropertyKey_YCbCrMatrix,
1249 vtctx->ycbcr_matrix);
1250
1251 if (status) {
1252 av_log(avctx, AV_LOG_WARNING, "Could not set ycbcr matrix: %d\n", status);
1253 }
1254 }
1255
1256
1257 if (vtctx->color_primaries) {
1258 status = VTSessionSetProperty(vtctx->session,
1259 kVTCompressionPropertyKey_ColorPrimaries,
1260 vtctx->color_primaries);
1261
1262 if (status) {
1263 av_log(avctx, AV_LOG_WARNING, "Could not set color primaries: %d\n", status);
1264 }
1265 }
1266
1267 if (gamma_level) {
1268 status = VTSessionSetProperty(vtctx->session,
1269 kCVImageBufferGammaLevelKey,
1270 gamma_level);
1271
1272 if (status) {
1273 av_log(avctx, AV_LOG_WARNING, "Could not set gamma level: %d\n", status);
1274 }
1275 }
1276
1277 if (!vtctx->has_b_frames) {
1278 status = VTSessionSetProperty(vtctx->session,
1279 kVTCompressionPropertyKey_AllowFrameReordering,
1280 kCFBooleanFalse);
1281
1282 if (status) {
1283 av_log(avctx, AV_LOG_ERROR, "Error setting 'allow frame reordering' property: %d\n", status);
1284 return AVERROR_EXTERNAL;
1285 }
1286 }
1287
1288 if (vtctx->entropy != VT_ENTROPY_NOT_SET) {
1289 CFStringRef entropy = vtctx->entropy == VT_CABAC ?
1290 compat_keys.kVTH264EntropyMode_CABAC:
1291 compat_keys.kVTH264EntropyMode_CAVLC;
1292
1293 status = VTSessionSetProperty(vtctx->session,
1294 compat_keys.kVTCompressionPropertyKey_H264EntropyMode,
1295 entropy);
1296
1297 if (status) {
1298 av_log(avctx, AV_LOG_ERROR, "Error setting entropy property: %d\n", status);
1299 }
1300 }
1301
1302 if (vtctx->realtime) {
1303 status = VTSessionSetProperty(vtctx->session,
1304 compat_keys.kVTCompressionPropertyKey_RealTime,
1305 kCFBooleanTrue);
1306
1307 if (status) {
1308 av_log(avctx, AV_LOG_ERROR, "Error setting realtime property: %d\n", status);
1309 }
1310 }
1311
1312 status = VTCompressionSessionPrepareToEncodeFrames(vtctx->session);
1313 if (status) {
1314 av_log(avctx, AV_LOG_ERROR, "Error: cannot prepare encoder: %d\n", status);
1315 return AVERROR_EXTERNAL;
1316 }
1317
1318 return 0;
1319 }
1320
vtenc_configure_encoder(AVCodecContext * avctx)1321 static int vtenc_configure_encoder(AVCodecContext *avctx)
1322 {
1323 CFMutableDictionaryRef enc_info;
1324 CFMutableDictionaryRef pixel_buffer_info;
1325 CMVideoCodecType codec_type;
1326 VTEncContext *vtctx = avctx->priv_data;
1327 CFStringRef profile_level;
1328 CFNumberRef gamma_level = NULL;
1329 int status;
1330
1331 codec_type = get_cm_codec_type(avctx->codec_id);
1332 if (!codec_type) {
1333 av_log(avctx, AV_LOG_ERROR, "Error: no mapping for AVCodecID %d\n", avctx->codec_id);
1334 return AVERROR(EINVAL);
1335 }
1336
1337 vtctx->codec_id = avctx->codec_id;
1338
1339 if (vtctx->codec_id == AV_CODEC_ID_H264) {
1340 vtctx->get_param_set_func = CMVideoFormatDescriptionGetH264ParameterSetAtIndex;
1341
1342 vtctx->has_b_frames = avctx->max_b_frames > 0;
1343 if(vtctx->has_b_frames && vtctx->profile == H264_PROF_BASELINE){
1344 av_log(avctx, AV_LOG_WARNING, "Cannot use B-frames with baseline profile. Output will not contain B-frames.\n");
1345 vtctx->has_b_frames = false;
1346 }
1347
1348 if (vtctx->entropy == VT_CABAC && vtctx->profile == H264_PROF_BASELINE) {
1349 av_log(avctx, AV_LOG_WARNING, "CABAC entropy requires 'main' or 'high' profile, but baseline was requested. Encode will not use CABAC entropy.\n");
1350 vtctx->entropy = VT_ENTROPY_NOT_SET;
1351 }
1352
1353 if (!get_vt_h264_profile_level(avctx, &profile_level)) return AVERROR(EINVAL);
1354 } else {
1355 vtctx->get_param_set_func = compat_keys.CMVideoFormatDescriptionGetHEVCParameterSetAtIndex;
1356 if (!vtctx->get_param_set_func) return AVERROR(EINVAL);
1357 if (!get_vt_hevc_profile_level(avctx, &profile_level)) return AVERROR(EINVAL);
1358 }
1359
1360 enc_info = CFDictionaryCreateMutable(
1361 kCFAllocatorDefault,
1362 20,
1363 &kCFCopyStringDictionaryKeyCallBacks,
1364 &kCFTypeDictionaryValueCallBacks
1365 );
1366
1367 if (!enc_info) return AVERROR(ENOMEM);
1368
1369 #if !TARGET_OS_IPHONE
1370 if(vtctx->require_sw) {
1371 CFDictionarySetValue(enc_info,
1372 compat_keys.kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder,
1373 kCFBooleanFalse);
1374 } else if (!vtctx->allow_sw) {
1375 CFDictionarySetValue(enc_info,
1376 compat_keys.kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder,
1377 kCFBooleanTrue);
1378 } else {
1379 CFDictionarySetValue(enc_info,
1380 compat_keys.kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder,
1381 kCFBooleanTrue);
1382 }
1383 #endif
1384
1385 if (avctx->pix_fmt != AV_PIX_FMT_VIDEOTOOLBOX) {
1386 status = create_cv_pixel_buffer_info(avctx, &pixel_buffer_info);
1387 if (status)
1388 goto init_cleanup;
1389 } else {
1390 pixel_buffer_info = NULL;
1391 }
1392
1393 vtctx->dts_delta = vtctx->has_b_frames ? -1 : 0;
1394
1395 get_cv_transfer_function(avctx, &vtctx->transfer_function, &gamma_level);
1396 get_cv_ycbcr_matrix(avctx, &vtctx->ycbcr_matrix);
1397 get_cv_color_primaries(avctx, &vtctx->color_primaries);
1398
1399
1400 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
1401 status = vtenc_populate_extradata(avctx,
1402 codec_type,
1403 profile_level,
1404 gamma_level,
1405 enc_info,
1406 pixel_buffer_info);
1407 if (status)
1408 goto init_cleanup;
1409 }
1410
1411 status = vtenc_create_encoder(avctx,
1412 codec_type,
1413 profile_level,
1414 gamma_level,
1415 enc_info,
1416 pixel_buffer_info,
1417 &vtctx->session);
1418
1419 init_cleanup:
1420 if (gamma_level)
1421 CFRelease(gamma_level);
1422
1423 if (pixel_buffer_info)
1424 CFRelease(pixel_buffer_info);
1425
1426 CFRelease(enc_info);
1427
1428 return status;
1429 }
1430
vtenc_init(AVCodecContext * avctx)1431 static av_cold int vtenc_init(AVCodecContext *avctx)
1432 {
1433 VTEncContext *vtctx = avctx->priv_data;
1434 CFBooleanRef has_b_frames_cfbool;
1435 int status;
1436
1437 pthread_once(&once_ctrl, loadVTEncSymbols);
1438
1439 pthread_mutex_init(&vtctx->lock, NULL);
1440 pthread_cond_init(&vtctx->cv_sample_sent, NULL);
1441
1442 vtctx->session = NULL;
1443 status = vtenc_configure_encoder(avctx);
1444 if (status) return status;
1445
1446 status = VTSessionCopyProperty(vtctx->session,
1447 kVTCompressionPropertyKey_AllowFrameReordering,
1448 kCFAllocatorDefault,
1449 &has_b_frames_cfbool);
1450
1451 if (!status && has_b_frames_cfbool) {
1452 //Some devices don't output B-frames for main profile, even if requested.
1453 vtctx->has_b_frames = CFBooleanGetValue(has_b_frames_cfbool);
1454 CFRelease(has_b_frames_cfbool);
1455 }
1456 avctx->has_b_frames = vtctx->has_b_frames;
1457
1458 return 0;
1459 }
1460
vtenc_get_frame_info(CMSampleBufferRef buffer,bool * is_key_frame)1461 static void vtenc_get_frame_info(CMSampleBufferRef buffer, bool *is_key_frame)
1462 {
1463 CFArrayRef attachments;
1464 CFDictionaryRef attachment;
1465 CFBooleanRef not_sync;
1466 CFIndex len;
1467
1468 attachments = CMSampleBufferGetSampleAttachmentsArray(buffer, false);
1469 len = !attachments ? 0 : CFArrayGetCount(attachments);
1470
1471 if (!len) {
1472 *is_key_frame = true;
1473 return;
1474 }
1475
1476 attachment = CFArrayGetValueAtIndex(attachments, 0);
1477
1478 if (CFDictionaryGetValueIfPresent(attachment,
1479 kCMSampleAttachmentKey_NotSync,
1480 (const void **)¬_sync))
1481 {
1482 *is_key_frame = !CFBooleanGetValue(not_sync);
1483 } else {
1484 *is_key_frame = true;
1485 }
1486 }
1487
is_post_sei_nal_type(int nal_type)1488 static int is_post_sei_nal_type(int nal_type){
1489 return nal_type != H264_NAL_SEI &&
1490 nal_type != H264_NAL_SPS &&
1491 nal_type != H264_NAL_PPS &&
1492 nal_type != H264_NAL_AUD;
1493 }
1494
1495 /*
1496 * Finds the sei message start/size of type find_sei_type.
1497 * If more than one of that type exists, the last one is returned.
1498 */
find_sei_end(AVCodecContext * avctx,uint8_t * nal_data,size_t nal_size,uint8_t ** sei_end)1499 static int find_sei_end(AVCodecContext *avctx,
1500 uint8_t *nal_data,
1501 size_t nal_size,
1502 uint8_t **sei_end)
1503 {
1504 int nal_type;
1505 size_t sei_payload_size = 0;
1506 int sei_payload_type = 0;
1507 *sei_end = NULL;
1508 uint8_t *nal_start = nal_data;
1509
1510 if (!nal_size)
1511 return 0;
1512
1513 nal_type = *nal_data & 0x1F;
1514 if (nal_type != H264_NAL_SEI)
1515 return 0;
1516
1517 nal_data++;
1518 nal_size--;
1519
1520 if (nal_data[nal_size - 1] == 0x80)
1521 nal_size--;
1522
1523 while (nal_size > 0 && *nal_data > 0) {
1524 do{
1525 sei_payload_type += *nal_data;
1526 nal_data++;
1527 nal_size--;
1528 } while (nal_size > 0 && *nal_data == 0xFF);
1529
1530 if (!nal_size) {
1531 av_log(avctx, AV_LOG_ERROR, "Unexpected end of SEI NAL Unit parsing type.\n");
1532 return AVERROR_INVALIDDATA;
1533 }
1534
1535 do{
1536 sei_payload_size += *nal_data;
1537 nal_data++;
1538 nal_size--;
1539 } while (nal_size > 0 && *nal_data == 0xFF);
1540
1541 if (nal_size < sei_payload_size) {
1542 av_log(avctx, AV_LOG_ERROR, "Unexpected end of SEI NAL Unit parsing size.\n");
1543 return AVERROR_INVALIDDATA;
1544 }
1545
1546 nal_data += sei_payload_size;
1547 nal_size -= sei_payload_size;
1548 }
1549
1550 *sei_end = nal_data;
1551
1552 return nal_data - nal_start + 1;
1553 }
1554
1555 /**
1556 * Copies the data inserting emulation prevention bytes as needed.
1557 * Existing data in the destination can be taken into account by providing
1558 * dst with a dst_offset > 0.
1559 *
1560 * @return The number of bytes copied on success. On failure, the negative of
1561 * the number of bytes needed to copy src is returned.
1562 */
copy_emulation_prev(const uint8_t * src,size_t src_size,uint8_t * dst,ssize_t dst_offset,size_t dst_size)1563 static int copy_emulation_prev(const uint8_t *src,
1564 size_t src_size,
1565 uint8_t *dst,
1566 ssize_t dst_offset,
1567 size_t dst_size)
1568 {
1569 int zeros = 0;
1570 int wrote_bytes;
1571 uint8_t* dst_start;
1572 uint8_t* dst_end = dst + dst_size;
1573 const uint8_t* src_end = src + src_size;
1574 int start_at = dst_offset > 2 ? dst_offset - 2 : 0;
1575 int i;
1576 for (i = start_at; i < dst_offset && i < dst_size; i++) {
1577 if (!dst[i])
1578 zeros++;
1579 else
1580 zeros = 0;
1581 }
1582
1583 dst += dst_offset;
1584 dst_start = dst;
1585 for (; src < src_end; src++, dst++) {
1586 if (zeros == 2) {
1587 int insert_ep3_byte = *src <= 3;
1588 if (insert_ep3_byte) {
1589 if (dst < dst_end)
1590 *dst = 3;
1591 dst++;
1592 }
1593
1594 zeros = 0;
1595 }
1596
1597 if (dst < dst_end)
1598 *dst = *src;
1599
1600 if (!*src)
1601 zeros++;
1602 else
1603 zeros = 0;
1604 }
1605
1606 wrote_bytes = dst - dst_start;
1607
1608 if (dst > dst_end)
1609 return -wrote_bytes;
1610
1611 return wrote_bytes;
1612 }
1613
write_sei(const ExtraSEI * sei,int sei_type,uint8_t * dst,size_t dst_size)1614 static int write_sei(const ExtraSEI *sei,
1615 int sei_type,
1616 uint8_t *dst,
1617 size_t dst_size)
1618 {
1619 uint8_t *sei_start = dst;
1620 size_t remaining_sei_size = sei->size;
1621 size_t remaining_dst_size = dst_size;
1622 int header_bytes;
1623 int bytes_written;
1624 ssize_t offset;
1625
1626 if (!remaining_dst_size)
1627 return AVERROR_BUFFER_TOO_SMALL;
1628
1629 while (sei_type && remaining_dst_size != 0) {
1630 int sei_byte = sei_type > 255 ? 255 : sei_type;
1631 *dst = sei_byte;
1632
1633 sei_type -= sei_byte;
1634 dst++;
1635 remaining_dst_size--;
1636 }
1637
1638 if (!dst_size)
1639 return AVERROR_BUFFER_TOO_SMALL;
1640
1641 while (remaining_sei_size && remaining_dst_size != 0) {
1642 int size_byte = remaining_sei_size > 255 ? 255 : remaining_sei_size;
1643 *dst = size_byte;
1644
1645 remaining_sei_size -= size_byte;
1646 dst++;
1647 remaining_dst_size--;
1648 }
1649
1650 if (remaining_dst_size < sei->size)
1651 return AVERROR_BUFFER_TOO_SMALL;
1652
1653 header_bytes = dst - sei_start;
1654
1655 offset = header_bytes;
1656 bytes_written = copy_emulation_prev(sei->data,
1657 sei->size,
1658 sei_start,
1659 offset,
1660 dst_size);
1661 if (bytes_written < 0)
1662 return AVERROR_BUFFER_TOO_SMALL;
1663
1664 bytes_written += header_bytes;
1665 return bytes_written;
1666 }
1667
1668 /**
1669 * Copies NAL units and replaces length codes with
1670 * H.264 Annex B start codes. On failure, the contents of
1671 * dst_data may have been modified.
1672 *
1673 * @param length_code_size Byte length of each length code
1674 * @param sample_buffer NAL units prefixed with length codes.
1675 * @param sei Optional A53 closed captions SEI data.
1676 * @param dst_data Must be zeroed before calling this function.
1677 * Contains the copied NAL units prefixed with
1678 * start codes when the function returns
1679 * successfully.
1680 * @param dst_size Length of dst_data
1681 * @return 0 on success
1682 * AVERROR_INVALIDDATA if length_code_size is invalid
1683 * AVERROR_BUFFER_TOO_SMALL if dst_data is too small
1684 * or if a length_code in src_data specifies data beyond
1685 * the end of its buffer.
1686 */
copy_replace_length_codes(AVCodecContext * avctx,size_t length_code_size,CMSampleBufferRef sample_buffer,ExtraSEI * sei,uint8_t * dst_data,size_t dst_size)1687 static int copy_replace_length_codes(
1688 AVCodecContext *avctx,
1689 size_t length_code_size,
1690 CMSampleBufferRef sample_buffer,
1691 ExtraSEI *sei,
1692 uint8_t *dst_data,
1693 size_t dst_size)
1694 {
1695 size_t src_size = CMSampleBufferGetTotalSampleSize(sample_buffer);
1696 size_t remaining_src_size = src_size;
1697 size_t remaining_dst_size = dst_size;
1698 size_t src_offset = 0;
1699 int wrote_sei = 0;
1700 int status;
1701 uint8_t size_buf[4];
1702 uint8_t nal_type;
1703 CMBlockBufferRef block = CMSampleBufferGetDataBuffer(sample_buffer);
1704
1705 if (length_code_size > 4) {
1706 return AVERROR_INVALIDDATA;
1707 }
1708
1709 while (remaining_src_size > 0) {
1710 size_t curr_src_len;
1711 size_t curr_dst_len;
1712 size_t box_len = 0;
1713 size_t i;
1714
1715 uint8_t *dst_box;
1716
1717 status = CMBlockBufferCopyDataBytes(block,
1718 src_offset,
1719 length_code_size,
1720 size_buf);
1721 if (status) {
1722 av_log(avctx, AV_LOG_ERROR, "Cannot copy length: %d\n", status);
1723 return AVERROR_EXTERNAL;
1724 }
1725
1726 status = CMBlockBufferCopyDataBytes(block,
1727 src_offset + length_code_size,
1728 1,
1729 &nal_type);
1730
1731 if (status) {
1732 av_log(avctx, AV_LOG_ERROR, "Cannot copy type: %d\n", status);
1733 return AVERROR_EXTERNAL;
1734 }
1735
1736 nal_type &= 0x1F;
1737
1738 for (i = 0; i < length_code_size; i++) {
1739 box_len <<= 8;
1740 box_len |= size_buf[i];
1741 }
1742
1743 if (sei && !wrote_sei && is_post_sei_nal_type(nal_type)) {
1744 //No SEI NAL unit - insert.
1745 int wrote_bytes;
1746
1747 memcpy(dst_data, start_code, sizeof(start_code));
1748 dst_data += sizeof(start_code);
1749 remaining_dst_size -= sizeof(start_code);
1750
1751 *dst_data = H264_NAL_SEI;
1752 dst_data++;
1753 remaining_dst_size--;
1754
1755 wrote_bytes = write_sei(sei,
1756 H264_SEI_TYPE_USER_DATA_REGISTERED,
1757 dst_data,
1758 remaining_dst_size);
1759
1760 if (wrote_bytes < 0)
1761 return wrote_bytes;
1762
1763 remaining_dst_size -= wrote_bytes;
1764 dst_data += wrote_bytes;
1765
1766 if (remaining_dst_size <= 0)
1767 return AVERROR_BUFFER_TOO_SMALL;
1768
1769 *dst_data = 0x80;
1770
1771 dst_data++;
1772 remaining_dst_size--;
1773
1774 wrote_sei = 1;
1775 }
1776
1777 curr_src_len = box_len + length_code_size;
1778 curr_dst_len = box_len + sizeof(start_code);
1779
1780 if (remaining_src_size < curr_src_len) {
1781 return AVERROR_BUFFER_TOO_SMALL;
1782 }
1783
1784 if (remaining_dst_size < curr_dst_len) {
1785 return AVERROR_BUFFER_TOO_SMALL;
1786 }
1787
1788 dst_box = dst_data + sizeof(start_code);
1789
1790 memcpy(dst_data, start_code, sizeof(start_code));
1791 status = CMBlockBufferCopyDataBytes(block,
1792 src_offset + length_code_size,
1793 box_len,
1794 dst_box);
1795
1796 if (status) {
1797 av_log(avctx, AV_LOG_ERROR, "Cannot copy data: %d\n", status);
1798 return AVERROR_EXTERNAL;
1799 }
1800
1801 if (sei && !wrote_sei && nal_type == H264_NAL_SEI) {
1802 //Found SEI NAL unit - append.
1803 int wrote_bytes;
1804 int old_sei_length;
1805 int extra_bytes;
1806 uint8_t *new_sei;
1807 old_sei_length = find_sei_end(avctx, dst_box, box_len, &new_sei);
1808 if (old_sei_length < 0)
1809 return status;
1810
1811 wrote_bytes = write_sei(sei,
1812 H264_SEI_TYPE_USER_DATA_REGISTERED,
1813 new_sei,
1814 remaining_dst_size - old_sei_length);
1815 if (wrote_bytes < 0)
1816 return wrote_bytes;
1817
1818 if (new_sei + wrote_bytes >= dst_data + remaining_dst_size)
1819 return AVERROR_BUFFER_TOO_SMALL;
1820
1821 new_sei[wrote_bytes++] = 0x80;
1822 extra_bytes = wrote_bytes - (dst_box + box_len - new_sei);
1823
1824 dst_data += extra_bytes;
1825 remaining_dst_size -= extra_bytes;
1826
1827 wrote_sei = 1;
1828 }
1829
1830 src_offset += curr_src_len;
1831 dst_data += curr_dst_len;
1832
1833 remaining_src_size -= curr_src_len;
1834 remaining_dst_size -= curr_dst_len;
1835 }
1836
1837 return 0;
1838 }
1839
1840 /**
1841 * Returns a sufficient number of bytes to contain the sei data.
1842 * It may be greater than the minimum required.
1843 */
get_sei_msg_bytes(const ExtraSEI * sei,int type)1844 static int get_sei_msg_bytes(const ExtraSEI* sei, int type){
1845 int copied_size;
1846 if (sei->size == 0)
1847 return 0;
1848
1849 copied_size = -copy_emulation_prev(sei->data,
1850 sei->size,
1851 NULL,
1852 0,
1853 0);
1854
1855 if ((sei->size % 255) == 0) //may result in an extra byte
1856 copied_size++;
1857
1858 return copied_size + sei->size / 255 + 1 + type / 255 + 1;
1859 }
1860
vtenc_cm_to_avpacket(AVCodecContext * avctx,CMSampleBufferRef sample_buffer,AVPacket * pkt,ExtraSEI * sei)1861 static int vtenc_cm_to_avpacket(
1862 AVCodecContext *avctx,
1863 CMSampleBufferRef sample_buffer,
1864 AVPacket *pkt,
1865 ExtraSEI *sei)
1866 {
1867 VTEncContext *vtctx = avctx->priv_data;
1868
1869 int status;
1870 bool is_key_frame;
1871 bool add_header;
1872 size_t length_code_size;
1873 size_t header_size = 0;
1874 size_t in_buf_size;
1875 size_t out_buf_size;
1876 size_t sei_nalu_size = 0;
1877 int64_t dts_delta;
1878 int64_t time_base_num;
1879 int nalu_count;
1880 CMTime pts;
1881 CMTime dts;
1882 CMVideoFormatDescriptionRef vid_fmt;
1883
1884
1885 vtenc_get_frame_info(sample_buffer, &is_key_frame);
1886 status = get_length_code_size(avctx, sample_buffer, &length_code_size);
1887 if (status) return status;
1888
1889 add_header = is_key_frame && !(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER);
1890
1891 if (add_header) {
1892 vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
1893 if (!vid_fmt) {
1894 av_log(avctx, AV_LOG_ERROR, "Cannot get format description.\n");
1895 return AVERROR_EXTERNAL;
1896 }
1897
1898 int status = get_params_size(avctx, vid_fmt, &header_size);
1899 if (status) return status;
1900 }
1901
1902 status = count_nalus(length_code_size, sample_buffer, &nalu_count);
1903 if(status)
1904 return status;
1905
1906 if (sei) {
1907 size_t msg_size = get_sei_msg_bytes(sei,
1908 H264_SEI_TYPE_USER_DATA_REGISTERED);
1909
1910 sei_nalu_size = sizeof(start_code) + 1 + msg_size + 1;
1911 }
1912
1913 in_buf_size = CMSampleBufferGetTotalSampleSize(sample_buffer);
1914 out_buf_size = header_size +
1915 in_buf_size +
1916 sei_nalu_size +
1917 nalu_count * ((int)sizeof(start_code) - (int)length_code_size);
1918
1919 status = ff_alloc_packet2(avctx, pkt, out_buf_size, out_buf_size);
1920 if (status < 0)
1921 return status;
1922
1923 if (add_header) {
1924 status = copy_param_sets(avctx, vid_fmt, pkt->data, out_buf_size);
1925 if(status) return status;
1926 }
1927
1928 status = copy_replace_length_codes(
1929 avctx,
1930 length_code_size,
1931 sample_buffer,
1932 sei,
1933 pkt->data + header_size,
1934 pkt->size - header_size
1935 );
1936
1937 if (status) {
1938 av_log(avctx, AV_LOG_ERROR, "Error copying packet data: %d\n", status);
1939 return status;
1940 }
1941
1942 if (is_key_frame) {
1943 pkt->flags |= AV_PKT_FLAG_KEY;
1944 }
1945
1946 pts = CMSampleBufferGetPresentationTimeStamp(sample_buffer);
1947 dts = CMSampleBufferGetDecodeTimeStamp (sample_buffer);
1948
1949 if (CMTIME_IS_INVALID(dts)) {
1950 if (!vtctx->has_b_frames) {
1951 dts = pts;
1952 } else {
1953 av_log(avctx, AV_LOG_ERROR, "DTS is invalid.\n");
1954 return AVERROR_EXTERNAL;
1955 }
1956 }
1957
1958 dts_delta = vtctx->dts_delta >= 0 ? vtctx->dts_delta : 0;
1959 time_base_num = avctx->time_base.num;
1960 pkt->pts = pts.value / time_base_num;
1961 pkt->dts = dts.value / time_base_num - dts_delta;
1962 pkt->size = out_buf_size;
1963
1964 return 0;
1965 }
1966
1967 /*
1968 * contiguous_buf_size is 0 if not contiguous, and the size of the buffer
1969 * containing all planes if so.
1970 */
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)1971 static int get_cv_pixel_info(
1972 AVCodecContext *avctx,
1973 const AVFrame *frame,
1974 int *color,
1975 int *plane_count,
1976 size_t *widths,
1977 size_t *heights,
1978 size_t *strides,
1979 size_t *contiguous_buf_size)
1980 {
1981 VTEncContext *vtctx = avctx->priv_data;
1982 int av_format = frame->format;
1983 int av_color_range = frame->color_range;
1984 int i;
1985 int range_guessed;
1986 int status;
1987
1988 status = get_cv_pixel_format(avctx, av_format, av_color_range, color, &range_guessed);
1989 if (status) {
1990 av_log(avctx,
1991 AV_LOG_ERROR,
1992 "Could not get pixel format for color format '%s' range '%s'.\n",
1993 av_get_pix_fmt_name(av_format),
1994 av_color_range > AVCOL_RANGE_UNSPECIFIED &&
1995 av_color_range < AVCOL_RANGE_NB ?
1996 av_color_range_name(av_color_range) :
1997 "Unknown");
1998
1999 return AVERROR(EINVAL);
2000 }
2001
2002 if (range_guessed) {
2003 if (!vtctx->warned_color_range) {
2004 vtctx->warned_color_range = true;
2005 av_log(avctx,
2006 AV_LOG_WARNING,
2007 "Color range not set for %s. Using MPEG range.\n",
2008 av_get_pix_fmt_name(av_format));
2009 }
2010 }
2011
2012 switch (av_format) {
2013 case AV_PIX_FMT_NV12:
2014 *plane_count = 2;
2015
2016 widths [0] = avctx->width;
2017 heights[0] = avctx->height;
2018 strides[0] = frame ? frame->linesize[0] : avctx->width;
2019
2020 widths [1] = (avctx->width + 1) / 2;
2021 heights[1] = (avctx->height + 1) / 2;
2022 strides[1] = frame ? frame->linesize[1] : (avctx->width + 1) & -2;
2023 break;
2024
2025 case AV_PIX_FMT_YUV420P:
2026 *plane_count = 3;
2027
2028 widths [0] = avctx->width;
2029 heights[0] = avctx->height;
2030 strides[0] = frame ? frame->linesize[0] : avctx->width;
2031
2032 widths [1] = (avctx->width + 1) / 2;
2033 heights[1] = (avctx->height + 1) / 2;
2034 strides[1] = frame ? frame->linesize[1] : (avctx->width + 1) / 2;
2035
2036 widths [2] = (avctx->width + 1) / 2;
2037 heights[2] = (avctx->height + 1) / 2;
2038 strides[2] = frame ? frame->linesize[2] : (avctx->width + 1) / 2;
2039 break;
2040
2041 case AV_PIX_FMT_P010LE:
2042 *plane_count = 2;
2043 widths[0] = avctx->width;
2044 heights[0] = avctx->height;
2045 strides[0] = frame ? frame->linesize[0] : (avctx->width * 2 + 63) & -64;
2046
2047 widths[1] = (avctx->width + 1) / 2;
2048 heights[1] = (avctx->height + 1) / 2;
2049 strides[1] = frame ? frame->linesize[1] : ((avctx->width + 1) / 2 + 63) & -64;
2050 break;
2051
2052 default:
2053 av_log(
2054 avctx,
2055 AV_LOG_ERROR,
2056 "Could not get frame format info for color %d range %d.\n",
2057 av_format,
2058 av_color_range);
2059
2060 return AVERROR(EINVAL);
2061 }
2062
2063 *contiguous_buf_size = 0;
2064 for (i = 0; i < *plane_count; i++) {
2065 if (i < *plane_count - 1 &&
2066 frame->data[i] + strides[i] * heights[i] != frame->data[i + 1]) {
2067 *contiguous_buf_size = 0;
2068 break;
2069 }
2070
2071 *contiguous_buf_size += strides[i] * heights[i];
2072 }
2073
2074 return 0;
2075 }
2076
2077 //Not used on OSX - frame is never copied.
copy_avframe_to_pixel_buffer(AVCodecContext * avctx,const AVFrame * frame,CVPixelBufferRef cv_img,const size_t * plane_strides,const size_t * plane_rows)2078 static int copy_avframe_to_pixel_buffer(AVCodecContext *avctx,
2079 const AVFrame *frame,
2080 CVPixelBufferRef cv_img,
2081 const size_t *plane_strides,
2082 const size_t *plane_rows)
2083 {
2084 int i, j;
2085 size_t plane_count;
2086 int status;
2087 int rows;
2088 int src_stride;
2089 int dst_stride;
2090 uint8_t *src_addr;
2091 uint8_t *dst_addr;
2092 size_t copy_bytes;
2093
2094 status = CVPixelBufferLockBaseAddress(cv_img, 0);
2095 if (status) {
2096 av_log(
2097 avctx,
2098 AV_LOG_ERROR,
2099 "Error: Could not lock base address of CVPixelBuffer: %d.\n",
2100 status
2101 );
2102 }
2103
2104 if (CVPixelBufferIsPlanar(cv_img)) {
2105 plane_count = CVPixelBufferGetPlaneCount(cv_img);
2106 for (i = 0; frame->data[i]; i++) {
2107 if (i == plane_count) {
2108 CVPixelBufferUnlockBaseAddress(cv_img, 0);
2109 av_log(avctx,
2110 AV_LOG_ERROR,
2111 "Error: different number of planes in AVFrame and CVPixelBuffer.\n"
2112 );
2113
2114 return AVERROR_EXTERNAL;
2115 }
2116
2117 dst_addr = (uint8_t*)CVPixelBufferGetBaseAddressOfPlane(cv_img, i);
2118 src_addr = (uint8_t*)frame->data[i];
2119 dst_stride = CVPixelBufferGetBytesPerRowOfPlane(cv_img, i);
2120 src_stride = plane_strides[i];
2121 rows = plane_rows[i];
2122
2123 if (dst_stride == src_stride) {
2124 memcpy(dst_addr, src_addr, src_stride * rows);
2125 } else {
2126 copy_bytes = dst_stride < src_stride ? dst_stride : src_stride;
2127
2128 for (j = 0; j < rows; j++) {
2129 memcpy(dst_addr + j * dst_stride, src_addr + j * src_stride, copy_bytes);
2130 }
2131 }
2132 }
2133 } else {
2134 if (frame->data[1]) {
2135 CVPixelBufferUnlockBaseAddress(cv_img, 0);
2136 av_log(avctx,
2137 AV_LOG_ERROR,
2138 "Error: different number of planes in AVFrame and non-planar CVPixelBuffer.\n"
2139 );
2140
2141 return AVERROR_EXTERNAL;
2142 }
2143
2144 dst_addr = (uint8_t*)CVPixelBufferGetBaseAddress(cv_img);
2145 src_addr = (uint8_t*)frame->data[0];
2146 dst_stride = CVPixelBufferGetBytesPerRow(cv_img);
2147 src_stride = plane_strides[0];
2148 rows = plane_rows[0];
2149
2150 if (dst_stride == src_stride) {
2151 memcpy(dst_addr, src_addr, src_stride * rows);
2152 } else {
2153 copy_bytes = dst_stride < src_stride ? dst_stride : src_stride;
2154
2155 for (j = 0; j < rows; j++) {
2156 memcpy(dst_addr + j * dst_stride, src_addr + j * src_stride, copy_bytes);
2157 }
2158 }
2159 }
2160
2161 status = CVPixelBufferUnlockBaseAddress(cv_img, 0);
2162 if (status) {
2163 av_log(avctx, AV_LOG_ERROR, "Error: Could not unlock CVPixelBuffer base address: %d.\n", status);
2164 return AVERROR_EXTERNAL;
2165 }
2166
2167 return 0;
2168 }
2169
create_cv_pixel_buffer(AVCodecContext * avctx,const AVFrame * frame,CVPixelBufferRef * cv_img)2170 static int create_cv_pixel_buffer(AVCodecContext *avctx,
2171 const AVFrame *frame,
2172 CVPixelBufferRef *cv_img)
2173 {
2174 int plane_count;
2175 int color;
2176 size_t widths [AV_NUM_DATA_POINTERS];
2177 size_t heights[AV_NUM_DATA_POINTERS];
2178 size_t strides[AV_NUM_DATA_POINTERS];
2179 int status;
2180 size_t contiguous_buf_size;
2181 CVPixelBufferPoolRef pix_buf_pool;
2182 VTEncContext* vtctx = avctx->priv_data;
2183
2184 if (avctx->pix_fmt == AV_PIX_FMT_VIDEOTOOLBOX) {
2185 av_assert0(frame->format == AV_PIX_FMT_VIDEOTOOLBOX);
2186
2187 *cv_img = (CVPixelBufferRef)frame->data[3];
2188 av_assert0(*cv_img);
2189
2190 CFRetain(*cv_img);
2191 return 0;
2192 }
2193
2194 memset(widths, 0, sizeof(widths));
2195 memset(heights, 0, sizeof(heights));
2196 memset(strides, 0, sizeof(strides));
2197
2198 status = get_cv_pixel_info(
2199 avctx,
2200 frame,
2201 &color,
2202 &plane_count,
2203 widths,
2204 heights,
2205 strides,
2206 &contiguous_buf_size
2207 );
2208
2209 if (status) {
2210 av_log(
2211 avctx,
2212 AV_LOG_ERROR,
2213 "Error: Cannot convert format %d color_range %d: %d\n",
2214 frame->format,
2215 frame->color_range,
2216 status
2217 );
2218
2219 return AVERROR_EXTERNAL;
2220 }
2221
2222 pix_buf_pool = VTCompressionSessionGetPixelBufferPool(vtctx->session);
2223 if (!pix_buf_pool) {
2224 /* On iOS, the VT session is invalidated when the APP switches from
2225 * foreground to background and vice versa. Fetch the actual error code
2226 * of the VT session to detect that case and restart the VT session
2227 * accordingly. */
2228 OSStatus vtstatus;
2229
2230 vtstatus = VTCompressionSessionPrepareToEncodeFrames(vtctx->session);
2231 if (vtstatus == kVTInvalidSessionErr) {
2232 CFRelease(vtctx->session);
2233 vtctx->session = NULL;
2234 status = vtenc_configure_encoder(avctx);
2235 if (status == 0)
2236 pix_buf_pool = VTCompressionSessionGetPixelBufferPool(vtctx->session);
2237 }
2238 if (!pix_buf_pool) {
2239 av_log(avctx, AV_LOG_ERROR, "Could not get pixel buffer pool.\n");
2240 return AVERROR_EXTERNAL;
2241 }
2242 else
2243 av_log(avctx, AV_LOG_WARNING, "VT session restarted because of a "
2244 "kVTInvalidSessionErr error.\n");
2245 }
2246
2247 status = CVPixelBufferPoolCreatePixelBuffer(NULL,
2248 pix_buf_pool,
2249 cv_img);
2250
2251
2252 if (status) {
2253 av_log(avctx, AV_LOG_ERROR, "Could not create pixel buffer from pool: %d.\n", status);
2254 return AVERROR_EXTERNAL;
2255 }
2256
2257 status = copy_avframe_to_pixel_buffer(avctx, frame, *cv_img, strides, heights);
2258 if (status) {
2259 CFRelease(*cv_img);
2260 *cv_img = NULL;
2261 return status;
2262 }
2263
2264 return 0;
2265 }
2266
create_encoder_dict_h264(const AVFrame * frame,CFDictionaryRef * dict_out)2267 static int create_encoder_dict_h264(const AVFrame *frame,
2268 CFDictionaryRef* dict_out)
2269 {
2270 CFDictionaryRef dict = NULL;
2271 if (frame->pict_type == AV_PICTURE_TYPE_I) {
2272 const void *keys[] = { kVTEncodeFrameOptionKey_ForceKeyFrame };
2273 const void *vals[] = { kCFBooleanTrue };
2274
2275 dict = CFDictionaryCreate(NULL, keys, vals, 1, NULL, NULL);
2276 if(!dict) return AVERROR(ENOMEM);
2277 }
2278
2279 *dict_out = dict;
2280 return 0;
2281 }
2282
vtenc_send_frame(AVCodecContext * avctx,VTEncContext * vtctx,const AVFrame * frame)2283 static int vtenc_send_frame(AVCodecContext *avctx,
2284 VTEncContext *vtctx,
2285 const AVFrame *frame)
2286 {
2287 CMTime time;
2288 CFDictionaryRef frame_dict;
2289 CVPixelBufferRef cv_img = NULL;
2290 AVFrameSideData *side_data = NULL;
2291 ExtraSEI *sei = NULL;
2292 int status = create_cv_pixel_buffer(avctx, frame, &cv_img);
2293
2294 if (status) return status;
2295
2296 status = create_encoder_dict_h264(frame, &frame_dict);
2297 if (status) {
2298 CFRelease(cv_img);
2299 return status;
2300 }
2301
2302 side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_A53_CC);
2303 if (vtctx->a53_cc && side_data && side_data->size) {
2304 sei = av_mallocz(sizeof(*sei));
2305 if (!sei) {
2306 av_log(avctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
2307 } else {
2308 int ret = ff_alloc_a53_sei(frame, 0, &sei->data, &sei->size);
2309 if (ret < 0) {
2310 av_log(avctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
2311 av_free(sei);
2312 sei = NULL;
2313 }
2314 }
2315 }
2316
2317 time = CMTimeMake(frame->pts * avctx->time_base.num, avctx->time_base.den);
2318 status = VTCompressionSessionEncodeFrame(
2319 vtctx->session,
2320 cv_img,
2321 time,
2322 kCMTimeInvalid,
2323 frame_dict,
2324 sei,
2325 NULL
2326 );
2327
2328 if (frame_dict) CFRelease(frame_dict);
2329 CFRelease(cv_img);
2330
2331 if (status) {
2332 av_log(avctx, AV_LOG_ERROR, "Error: cannot encode frame: %d\n", status);
2333 return AVERROR_EXTERNAL;
2334 }
2335
2336 return 0;
2337 }
2338
vtenc_frame(AVCodecContext * avctx,AVPacket * pkt,const AVFrame * frame,int * got_packet)2339 static av_cold int vtenc_frame(
2340 AVCodecContext *avctx,
2341 AVPacket *pkt,
2342 const AVFrame *frame,
2343 int *got_packet)
2344 {
2345 VTEncContext *vtctx = avctx->priv_data;
2346 bool get_frame;
2347 int status;
2348 CMSampleBufferRef buf = NULL;
2349 ExtraSEI *sei = NULL;
2350
2351 if (frame) {
2352 status = vtenc_send_frame(avctx, vtctx, frame);
2353
2354 if (status) {
2355 status = AVERROR_EXTERNAL;
2356 goto end_nopkt;
2357 }
2358
2359 if (vtctx->frame_ct_in == 0) {
2360 vtctx->first_pts = frame->pts;
2361 } else if(vtctx->frame_ct_in == 1 && vtctx->has_b_frames) {
2362 vtctx->dts_delta = frame->pts - vtctx->first_pts;
2363 }
2364
2365 vtctx->frame_ct_in++;
2366 } else if(!vtctx->flushing) {
2367 vtctx->flushing = true;
2368
2369 status = VTCompressionSessionCompleteFrames(vtctx->session,
2370 kCMTimeIndefinite);
2371
2372 if (status) {
2373 av_log(avctx, AV_LOG_ERROR, "Error flushing frames: %d\n", status);
2374 status = AVERROR_EXTERNAL;
2375 goto end_nopkt;
2376 }
2377 }
2378
2379 *got_packet = 0;
2380 get_frame = vtctx->dts_delta >= 0 || !frame;
2381 if (!get_frame) {
2382 status = 0;
2383 goto end_nopkt;
2384 }
2385
2386 status = vtenc_q_pop(vtctx, !frame, &buf, &sei);
2387 if (status) goto end_nopkt;
2388 if (!buf) goto end_nopkt;
2389
2390 status = vtenc_cm_to_avpacket(avctx, buf, pkt, sei);
2391 if (sei) {
2392 if (sei->data) av_free(sei->data);
2393 av_free(sei);
2394 }
2395 CFRelease(buf);
2396 if (status) goto end_nopkt;
2397
2398 *got_packet = 1;
2399 return 0;
2400
2401 end_nopkt:
2402 av_packet_unref(pkt);
2403 return status;
2404 }
2405
vtenc_populate_extradata(AVCodecContext * avctx,CMVideoCodecType codec_type,CFStringRef profile_level,CFNumberRef gamma_level,CFDictionaryRef enc_info,CFDictionaryRef pixel_buffer_info)2406 static int vtenc_populate_extradata(AVCodecContext *avctx,
2407 CMVideoCodecType codec_type,
2408 CFStringRef profile_level,
2409 CFNumberRef gamma_level,
2410 CFDictionaryRef enc_info,
2411 CFDictionaryRef pixel_buffer_info)
2412 {
2413 VTEncContext *vtctx = avctx->priv_data;
2414 int status;
2415 CVPixelBufferPoolRef pool = NULL;
2416 CVPixelBufferRef pix_buf = NULL;
2417 CMTime time;
2418 CMSampleBufferRef buf = NULL;
2419
2420 status = vtenc_create_encoder(avctx,
2421 codec_type,
2422 profile_level,
2423 gamma_level,
2424 enc_info,
2425 pixel_buffer_info,
2426 &vtctx->session);
2427 if (status)
2428 goto pe_cleanup;
2429
2430 pool = VTCompressionSessionGetPixelBufferPool(vtctx->session);
2431 if(!pool){
2432 av_log(avctx, AV_LOG_ERROR, "Error getting pixel buffer pool.\n");
2433 goto pe_cleanup;
2434 }
2435
2436 status = CVPixelBufferPoolCreatePixelBuffer(NULL,
2437 pool,
2438 &pix_buf);
2439
2440 if(status != kCVReturnSuccess){
2441 av_log(avctx, AV_LOG_ERROR, "Error creating frame from pool: %d\n", status);
2442 goto pe_cleanup;
2443 }
2444
2445 time = CMTimeMake(0, avctx->time_base.den);
2446 status = VTCompressionSessionEncodeFrame(vtctx->session,
2447 pix_buf,
2448 time,
2449 kCMTimeInvalid,
2450 NULL,
2451 NULL,
2452 NULL);
2453
2454 if (status) {
2455 av_log(avctx,
2456 AV_LOG_ERROR,
2457 "Error sending frame for extradata: %d\n",
2458 status);
2459
2460 goto pe_cleanup;
2461 }
2462
2463 //Populates extradata - output frames are flushed and param sets are available.
2464 status = VTCompressionSessionCompleteFrames(vtctx->session,
2465 kCMTimeIndefinite);
2466
2467 if (status)
2468 goto pe_cleanup;
2469
2470 status = vtenc_q_pop(vtctx, 0, &buf, NULL);
2471 if (status) {
2472 av_log(avctx, AV_LOG_ERROR, "popping: %d\n", status);
2473 goto pe_cleanup;
2474 }
2475
2476 CFRelease(buf);
2477
2478
2479
2480 pe_cleanup:
2481 if(vtctx->session)
2482 CFRelease(vtctx->session);
2483
2484 vtctx->session = NULL;
2485 vtctx->frame_ct_out = 0;
2486
2487 av_assert0(status != 0 || (avctx->extradata && avctx->extradata_size > 0));
2488
2489 return status;
2490 }
2491
vtenc_close(AVCodecContext * avctx)2492 static av_cold int vtenc_close(AVCodecContext *avctx)
2493 {
2494 VTEncContext *vtctx = avctx->priv_data;
2495
2496 pthread_cond_destroy(&vtctx->cv_sample_sent);
2497 pthread_mutex_destroy(&vtctx->lock);
2498
2499 if(!vtctx->session) return 0;
2500
2501 VTCompressionSessionCompleteFrames(vtctx->session,
2502 kCMTimeIndefinite);
2503 clear_frame_queue(vtctx);
2504 CFRelease(vtctx->session);
2505 vtctx->session = NULL;
2506
2507 if (vtctx->color_primaries) {
2508 CFRelease(vtctx->color_primaries);
2509 vtctx->color_primaries = NULL;
2510 }
2511
2512 if (vtctx->transfer_function) {
2513 CFRelease(vtctx->transfer_function);
2514 vtctx->transfer_function = NULL;
2515 }
2516
2517 if (vtctx->ycbcr_matrix) {
2518 CFRelease(vtctx->ycbcr_matrix);
2519 vtctx->ycbcr_matrix = NULL;
2520 }
2521
2522 return 0;
2523 }
2524
2525 static const enum AVPixelFormat avc_pix_fmts[] = {
2526 AV_PIX_FMT_VIDEOTOOLBOX,
2527 AV_PIX_FMT_NV12,
2528 AV_PIX_FMT_YUV420P,
2529 AV_PIX_FMT_NONE
2530 };
2531
2532 static const enum AVPixelFormat hevc_pix_fmts[] = {
2533 AV_PIX_FMT_VIDEOTOOLBOX,
2534 AV_PIX_FMT_NV12,
2535 AV_PIX_FMT_YUV420P,
2536 AV_PIX_FMT_P010LE,
2537 AV_PIX_FMT_NONE
2538 };
2539
2540 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
2541 #define COMMON_OPTIONS \
2542 { "allow_sw", "Allow software encoding", OFFSET(allow_sw), AV_OPT_TYPE_BOOL, \
2543 { .i64 = 0 }, 0, 1, VE }, \
2544 { "require_sw", "Require software encoding", OFFSET(require_sw), AV_OPT_TYPE_BOOL, \
2545 { .i64 = 0 }, 0, 1, VE }, \
2546 { "realtime", "Hint that encoding should happen in real-time if not faster (e.g. capturing from camera).", \
2547 OFFSET(realtime), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \
2548 { "frames_before", "Other frames will come before the frames in this session. This helps smooth concatenation issues.", \
2549 OFFSET(frames_before), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \
2550 { "frames_after", "Other frames will come after the frames in this session. This helps smooth concatenation issues.", \
2551 OFFSET(frames_after), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
2552
2553 #define OFFSET(x) offsetof(VTEncContext, x)
2554 static const AVOption h264_options[] = {
2555 { "profile", "Profile", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = H264_PROF_AUTO }, H264_PROF_AUTO, H264_PROF_COUNT, VE, "profile" },
2556 { "baseline", "Baseline Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_BASELINE }, INT_MIN, INT_MAX, VE, "profile" },
2557 { "main", "Main Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
2558 { "high", "High Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_HIGH }, INT_MIN, INT_MAX, VE, "profile" },
2559 { "extended", "Extend Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_EXTENDED }, INT_MIN, INT_MAX, VE, "profile" },
2560
2561 { "level", "Level", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, VE, "level" },
2562 { "1.3", "Level 1.3, only available with Baseline Profile", 0, AV_OPT_TYPE_CONST, { .i64 = 13 }, INT_MIN, INT_MAX, VE, "level" },
2563 { "3.0", "Level 3.0", 0, AV_OPT_TYPE_CONST, { .i64 = 30 }, INT_MIN, INT_MAX, VE, "level" },
2564 { "3.1", "Level 3.1", 0, AV_OPT_TYPE_CONST, { .i64 = 31 }, INT_MIN, INT_MAX, VE, "level" },
2565 { "3.2", "Level 3.2", 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, INT_MIN, INT_MAX, VE, "level" },
2566 { "4.0", "Level 4.0", 0, AV_OPT_TYPE_CONST, { .i64 = 40 }, INT_MIN, INT_MAX, VE, "level" },
2567 { "4.1", "Level 4.1", 0, AV_OPT_TYPE_CONST, { .i64 = 41 }, INT_MIN, INT_MAX, VE, "level" },
2568 { "4.2", "Level 4.2", 0, AV_OPT_TYPE_CONST, { .i64 = 42 }, INT_MIN, INT_MAX, VE, "level" },
2569 { "5.0", "Level 5.0", 0, AV_OPT_TYPE_CONST, { .i64 = 50 }, INT_MIN, INT_MAX, VE, "level" },
2570 { "5.1", "Level 5.1", 0, AV_OPT_TYPE_CONST, { .i64 = 51 }, INT_MIN, INT_MAX, VE, "level" },
2571 { "5.2", "Level 5.2", 0, AV_OPT_TYPE_CONST, { .i64 = 52 }, INT_MIN, INT_MAX, VE, "level" },
2572
2573 { "coder", "Entropy coding", OFFSET(entropy), AV_OPT_TYPE_INT, { .i64 = VT_ENTROPY_NOT_SET }, VT_ENTROPY_NOT_SET, VT_CABAC, VE, "coder" },
2574 { "cavlc", "CAVLC entropy coding", 0, AV_OPT_TYPE_CONST, { .i64 = VT_CAVLC }, INT_MIN, INT_MAX, VE, "coder" },
2575 { "vlc", "CAVLC entropy coding", 0, AV_OPT_TYPE_CONST, { .i64 = VT_CAVLC }, INT_MIN, INT_MAX, VE, "coder" },
2576 { "cabac", "CABAC entropy coding", 0, AV_OPT_TYPE_CONST, { .i64 = VT_CABAC }, INT_MIN, INT_MAX, VE, "coder" },
2577 { "ac", "CABAC entropy coding", 0, AV_OPT_TYPE_CONST, { .i64 = VT_CABAC }, INT_MIN, INT_MAX, VE, "coder" },
2578
2579 { "a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, VE },
2580
2581 COMMON_OPTIONS
2582 { NULL },
2583 };
2584
2585 static const AVClass h264_videotoolbox_class = {
2586 .class_name = "h264_videotoolbox",
2587 .item_name = av_default_item_name,
2588 .option = h264_options,
2589 .version = LIBAVUTIL_VERSION_INT,
2590 };
2591
2592 AVCodec ff_h264_videotoolbox_encoder = {
2593 .name = "h264_videotoolbox",
2594 .long_name = NULL_IF_CONFIG_SMALL("VideoToolbox H.264 Encoder"),
2595 .type = AVMEDIA_TYPE_VIDEO,
2596 .id = AV_CODEC_ID_H264,
2597 .priv_data_size = sizeof(VTEncContext),
2598 .pix_fmts = avc_pix_fmts,
2599 .init = vtenc_init,
2600 .encode2 = vtenc_frame,
2601 .close = vtenc_close,
2602 .capabilities = AV_CODEC_CAP_DELAY,
2603 .priv_class = &h264_videotoolbox_class,
2604 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
2605 FF_CODEC_CAP_INIT_CLEANUP,
2606 };
2607
2608 static const AVOption hevc_options[] = {
2609 { "profile", "Profile", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = HEVC_PROF_AUTO }, HEVC_PROF_AUTO, HEVC_PROF_COUNT, VE, "profile" },
2610 { "main", "Main Profile", 0, AV_OPT_TYPE_CONST, { .i64 = HEVC_PROF_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
2611 { "main10", "Main10 Profile", 0, AV_OPT_TYPE_CONST, { .i64 = HEVC_PROF_MAIN10 }, INT_MIN, INT_MAX, VE, "profile" },
2612
2613 COMMON_OPTIONS
2614 { NULL },
2615 };
2616
2617 static const AVClass hevc_videotoolbox_class = {
2618 .class_name = "hevc_videotoolbox",
2619 .item_name = av_default_item_name,
2620 .option = hevc_options,
2621 .version = LIBAVUTIL_VERSION_INT,
2622 };
2623
2624 AVCodec ff_hevc_videotoolbox_encoder = {
2625 .name = "hevc_videotoolbox",
2626 .long_name = NULL_IF_CONFIG_SMALL("VideoToolbox H.265 Encoder"),
2627 .type = AVMEDIA_TYPE_VIDEO,
2628 .id = AV_CODEC_ID_HEVC,
2629 .priv_data_size = sizeof(VTEncContext),
2630 .pix_fmts = hevc_pix_fmts,
2631 .init = vtenc_init,
2632 .encode2 = vtenc_frame,
2633 .close = vtenc_close,
2634 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
2635 .priv_class = &hevc_videotoolbox_class,
2636 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
2637 FF_CODEC_CAP_INIT_CLEANUP,
2638 .wrapper_name = "videotoolbox",
2639 };
2640