git.sesse.net Git - nageru/blob - decklink_output.cpp

   1 #include <movit/effect_util.h>
   2 #include <movit/util.h>
   3 #include <movit/resource_pool.h>  // Must be above the Xlib includes.
   4 #include <pthread.h>
   5
   6 #include <epoxy/egl.h>
   7
   8 #include "chroma_subsampler.h"
   9 #include "decklink_output.h"
  10 #include "decklink_util.h"
  11 #include "flags.h"
  12 #include "print_latency.h"
  13 #include "resource_pool.h"
  14 #include "timebase.h"
  15 #include "v210_converter.h"
  16
  17 using namespace movit;
  18 using namespace std;
  19 using namespace std::chrono;
  20
  21 DeckLinkOutput::DeckLinkOutput(ResourcePool *resource_pool, QSurface *surface, unsigned width, unsigned height, unsigned card_index)
  22         : resource_pool(resource_pool), surface(surface), width(width), height(height), card_index(card_index)
  23 {
  24         chroma_subsampler.reset(new ChromaSubsampler(resource_pool));
  25 }
  26
  27 void DeckLinkOutput::set_device(IDeckLink *decklink)
  28 {
  29         if (decklink->QueryInterface(IID_IDeckLinkOutput, (void**)&output) != S_OK) {
  30                 fprintf(stderr, "Card %u has no outputs\n", card_index);
  31                 exit(1);
  32         }
  33
  34         IDeckLinkDisplayModeIterator *mode_it;
  35         if (output->GetDisplayModeIterator(&mode_it) != S_OK) {
  36                 fprintf(stderr, "Failed to enumerate output display modes for card %u\n", card_index);
  37                 exit(1);
  38         }
  39
  40         video_modes.clear();
  41
  42         for (const auto &it : summarize_video_modes(mode_it, card_index)) {
  43                 if (it.second.width != width || it.second.height != height) {
  44                         continue;
  45                 }
  46
  47                 // We could support interlaced modes, but let's stay out of it for now,
  48                 // since we don't have interlaced stream output.
  49                 if (it.second.interlaced) {
  50                         continue;
  51                 }
  52
  53                 video_modes.insert(it);
  54         }
  55
  56         mode_it->Release();
  57
  58         // HDMI or SDI generally mean “both HDMI and SDI at the same time” on DeckLink cards
  59         // that support both; pick_default_video_connection() will generally pick one of those
  60         // if they exist. We're not very likely to need analog outputs, so we don't need a way
  61         // to change beyond that.
  62         video_connection = pick_default_video_connection(decklink, BMDDeckLinkVideoOutputConnections, card_index);
  63 }
  64
  65 void DeckLinkOutput::start_output(uint32_t mode, int64_t base_pts)
  66 {
  67         assert(output);
  68         assert(!playback_initiated);
  69
  70         should_quit.unquit();
  71         playback_initiated = true;
  72         playback_started = false;
  73         this->base_pts = base_pts;
  74
  75         IDeckLinkConfiguration *config = nullptr;
  76         if (output->QueryInterface(IID_IDeckLinkConfiguration, (void**)&config) != S_OK) {
  77                 fprintf(stderr, "Failed to get configuration interface for output card\n");
  78                 exit(1);
  79         }
  80         if (config->SetFlag(bmdDeckLinkConfigLowLatencyVideoOutput, true) != S_OK) {
  81                 fprintf(stderr, "Failed to set low latency output\n");
  82                 exit(1);
  83         }
  84         if (config->SetInt(bmdDeckLinkConfigVideoOutputConnection, video_connection) != S_OK) {
  85                 fprintf(stderr, "Failed to set video output connection for card %u\n", card_index);
  86                 exit(1);
  87         }
  88         if (config->SetFlag(bmdDeckLinkConfigUse1080pNotPsF, true) != S_OK) {
  89                 fprintf(stderr, "Failed to set PsF flag for card\n");
  90                 exit(1);
  91         }
  92         if (config->SetFlag(bmdDeckLinkConfigSMPTELevelAOutput, true) != S_OK) {
  93                 // This affects at least some no-name SDI->HDMI converters.
  94                 // Warn, but don't die.
  95                 fprintf(stderr, "WARNING: Failed to enable SMTPE Level A; resolutions like 1080p60 might have issues.\n");
  96         }
  97
  98         BMDDisplayModeSupport support;
  99         IDeckLinkDisplayMode *display_mode;
 100         BMDPixelFormat pixel_format = global_flags.ten_bit_output ? bmdFormat10BitYUV : bmdFormat8BitYUV;
 101         if (output->DoesSupportVideoMode(mode, pixel_format, bmdVideoOutputFlagDefault,
 102                                          &support, &display_mode) != S_OK) {
 103                 fprintf(stderr, "Couldn't ask for format support\n");
 104                 exit(1);
 105         }
 106
 107         if (support == bmdDisplayModeNotSupported) {
 108                 fprintf(stderr, "Requested display mode not supported\n");
 109                 exit(1);
 110         }
 111
 112         current_mode_flags = display_mode->GetFlags();
 113
 114         BMDTimeValue time_value;
 115         BMDTimeScale time_scale;
 116         if (display_mode->GetFrameRate(&time_value, &time_scale) != S_OK) {
 117                 fprintf(stderr, "Couldn't get frame rate\n");
 118                 exit(1);
 119         }
 120
 121         frame_duration = time_value * TIMEBASE / time_scale;
 122
 123         display_mode->Release();
 124
 125         HRESULT result = output->EnableVideoOutput(mode, bmdVideoOutputFlagDefault);
 126         if (result != S_OK) {
 127                 fprintf(stderr, "Couldn't enable output with error 0x%x\n", result);
 128                 exit(1);
 129         }
 130         if (output->SetScheduledFrameCompletionCallback(this) != S_OK) {
 131                 fprintf(stderr, "Couldn't set callback\n");
 132                 exit(1);
 133         }
 134         assert(OUTPUT_FREQUENCY == 48000);
 135         if (output->EnableAudioOutput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, 2, bmdAudioOutputStreamTimestamped) != S_OK) {
 136                 fprintf(stderr, "Couldn't enable audio output\n");
 137                 exit(1);
 138         }
 139         if (output->BeginAudioPreroll() != S_OK) {
 140                 fprintf(stderr, "Couldn't begin audio preroll\n");
 141                 exit(1);
 142         }
 143
 144         present_thread = thread([this]{
 145                 QOpenGLContext *context = create_context(this->surface);
 146                 eglBindAPI(EGL_OPENGL_API);
 147                 if (!make_current(context, this->surface)) {
 148                         printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
 149                                 eglGetError());
 150                         exit(1);
 151                 }
 152                 present_thread_func();
 153                 delete_context(context);
 154         });
 155 }
 156
 157 void DeckLinkOutput::end_output()
 158 {
 159         if (!playback_initiated) {
 160                 return;
 161         }
 162
 163         should_quit.quit();
 164         frame_queues_changed.notify_all();
 165         present_thread.join();
 166         playback_initiated = false;
 167
 168         output->StopScheduledPlayback(0, nullptr, 0);
 169         output->DisableVideoOutput();
 170         output->DisableAudioOutput();
 171
 172         // Wait until all frames are accounted for, and free them.
 173         {
 174                 unique_lock<mutex> lock(frame_queue_mutex);
 175                 while (!(frame_freelist.empty() && num_frames_in_flight == 0)) {
 176                         frame_queues_changed.wait(lock, [this]{ return !frame_freelist.empty(); });
 177                         frame_freelist.pop();
 178                 }
 179         }
 180 }
 181
 182 void DeckLinkOutput::send_frame(GLuint y_tex, GLuint cbcr_tex, YCbCrLumaCoefficients output_ycbcr_coefficients, const vector<RefCountedFrame> &input_frames, int64_t pts, int64_t duration)
 183 {
 184         assert(!should_quit.should_quit());
 185
 186         if ((current_mode_flags & bmdDisplayModeColorspaceRec601) && output_ycbcr_coefficients == YCBCR_REC_709) {
 187                 if (!last_frame_had_mode_mismatch) {
 188                         fprintf(stderr, "WARNING: Chosen output mode expects Rec. 601 Y'CbCr coefficients.\n");
 189                         fprintf(stderr, "         Consider --output-ycbcr-coefficients=rec601 (or =auto).\n");
 190                 }
 191                 last_frame_had_mode_mismatch = true;
 192         } else if ((current_mode_flags & bmdDisplayModeColorspaceRec709) && output_ycbcr_coefficients == YCBCR_REC_601) {
 193                 if (!last_frame_had_mode_mismatch) {
 194                         fprintf(stderr, "WARNING: Chosen output mode expects Rec. 709 Y'CbCr coefficients.\n");
 195                         fprintf(stderr, "         Consider --output-ycbcr-coefficients=rec709 (or =auto).\n");
 196                 }
 197                 last_frame_had_mode_mismatch = true;
 198         } else {
 199                 last_frame_had_mode_mismatch = false;
 200         }
 201
 202         unique_ptr<Frame> frame = move(get_frame());
 203         if (global_flags.ten_bit_output) {
 204                 chroma_subsampler->create_v210(y_tex, cbcr_tex, width, height, frame->uyvy_tex);
 205         } else {
 206                 chroma_subsampler->create_uyvy(y_tex, cbcr_tex, width, height, frame->uyvy_tex);
 207         }
 208
 209         // Download the UYVY texture to the PBO.
 210         glPixelStorei(GL_PACK_ROW_LENGTH, 0);
 211         check_error();
 212
 213         glBindBuffer(GL_PIXEL_PACK_BUFFER, frame->pbo);
 214         check_error();
 215
 216         if (global_flags.ten_bit_output) {
 217                 glBindTexture(GL_TEXTURE_2D, frame->uyvy_tex);
 218                 check_error();
 219                 glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, BUFFER_OFFSET(0));
 220                 check_error();
 221         } else {
 222                 glBindTexture(GL_TEXTURE_2D, frame->uyvy_tex);
 223                 check_error();
 224                 glGetTexImage(GL_TEXTURE_2D, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, BUFFER_OFFSET(0));
 225                 check_error();
 226         }
 227
 228         glBindTexture(GL_TEXTURE_2D, 0);
 229         check_error();
 230         glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
 231         check_error();
 232
 233         glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
 234         check_error();
 235
 236         frame->fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
 237         check_error();
 238         glFlush();  // Make the DeckLink thread see the fence as soon as possible.
 239         check_error();
 240
 241         frame->input_frames = input_frames;
 242         frame->received_ts = find_received_timestamp(input_frames);
 243         frame->pts = pts;
 244         frame->duration = duration;
 245
 246         {
 247                 unique_lock<mutex> lock(frame_queue_mutex);
 248                 pending_video_frames.push(move(frame));
 249         }
 250         frame_queues_changed.notify_all();
 251 }
 252
 253 void DeckLinkOutput::send_audio(int64_t pts, const std::vector<float> &samples)
 254 {
 255         unique_ptr<int32_t[]> int_samples(new int32_t[samples.size()]);
 256         for (size_t i = 0; i < samples.size(); ++i) {
 257                 int_samples[i] = lrintf(samples[i] * 2147483648.0f);
 258         }
 259
 260         uint32_t frames_written;
 261         HRESULT result = output->ScheduleAudioSamples(int_samples.get(), samples.size() / 2,
 262                 pts, TIMEBASE, &frames_written);
 263         if (result != S_OK) {
 264                 fprintf(stderr, "ScheduleAudioSamples(pts=%ld) failed (result=0x%08x)\n", pts, result);
 265         } else {
 266                 if (frames_written != samples.size() / 2) {
 267                         fprintf(stderr, "ScheduleAudioSamples() returned short write (%u/%ld)\n", frames_written, samples.size() / 2);
 268                 }
 269         }
 270 }
 271
 272 void DeckLinkOutput::wait_for_frame(int64_t pts, int *dropped_frames, int64_t *frame_duration, bool *is_preroll, steady_clock::time_point *frame_timestamp)
 273 {
 274         assert(!should_quit.should_quit());
 275
 276         *dropped_frames = 0;
 277         *frame_duration = this->frame_duration;
 278
 279         const BMDTimeValue buffer = lrint(*frame_duration * global_flags.output_buffer_frames);
 280         const BMDTimeValue max_overshoot = lrint(*frame_duration * global_flags.output_slop_frames);
 281         BMDTimeValue target_time = pts - buffer;
 282
 283         // While prerolling, we send out frames as quickly as we can.
 284         if (target_time < base_pts) {
 285                 *is_preroll = true;
 286                 return;
 287         }
 288
 289         *is_preroll = !playback_started;
 290
 291         if (!playback_started) {
 292                 if (output->EndAudioPreroll() != S_OK) {
 293                         fprintf(stderr, "Could not end audio preroll\n");
 294                         exit(1);  // TODO
 295                 }
 296                 if (output->StartScheduledPlayback(base_pts, TIMEBASE, 1.0) != S_OK) {
 297                         fprintf(stderr, "Could not start playback\n");
 298                         exit(1);  // TODO
 299                 }
 300                 playback_started = true;
 301         }
 302
 303         BMDTimeValue stream_frame_time;
 304         double playback_speed;
 305         output->GetScheduledStreamTime(TIMEBASE, &stream_frame_time, &playback_speed);
 306
 307         *frame_timestamp = steady_clock::now() +
 308                 nanoseconds((target_time - stream_frame_time) * 1000000000 / TIMEBASE);
 309
 310         // If we're ahead of time, wait for the frame to (approximately) start.
 311         if (stream_frame_time < target_time) {
 312                 should_quit.sleep_until(*frame_timestamp);
 313                 return;
 314         }
 315
 316         // If we overshot the previous frame by just a little,
 317         // fire off one immediately.
 318         if (stream_frame_time < target_time + max_overshoot) {
 319                 fprintf(stderr, "Warning: Frame was %ld ms late (but not skipping it due to --output-slop-frames).\n",
 320                         lrint((stream_frame_time - target_time) * 1000.0 / TIMEBASE));
 321                 return;
 322         }
 323
 324         // Oops, we missed by more than one frame. Return immediately,
 325         // but drop so that we catch up.
 326         *dropped_frames = (stream_frame_time - target_time + *frame_duration - 1) / *frame_duration;
 327         const int64_t ns_per_frame = this->frame_duration * 1000000000 / TIMEBASE;
 328         *frame_timestamp += nanoseconds(*dropped_frames * ns_per_frame);
 329         fprintf(stderr, "Dropped %d output frames; skipping.\n", *dropped_frames);
 330 }
 331
 332 uint32_t DeckLinkOutput::pick_video_mode(uint32_t mode) const
 333 {
 334         if (video_modes.count(mode)) {
 335                 return mode;
 336         }
 337
 338         // Prioritize 59.94 > 60 > 29.97. If none of those are found, then pick the highest one.
 339         for (const pair<int, int> &desired : vector<pair<int, int>>{ { 60000, 1001 }, { 60, 0 }, { 30000, 1001 } }) {
 340                 for (const auto &it : video_modes) {
 341                         if (it.second.frame_rate_num * desired.second == desired.first * it.second.frame_rate_den) {
 342                                 return it.first;
 343                         }
 344                 }
 345         }
 346
 347         uint32_t best_mode = 0;
 348         double best_fps = 0.0;
 349         for (const auto &it : video_modes) {
 350                 double fps = double(it.second.frame_rate_num) / it.second.frame_rate_den;
 351                 if (fps > best_fps) {
 352                         best_mode = it.first;
 353                         best_fps = fps;
 354                 }
 355         }
 356         return best_mode;
 357 }
 358
 359 YCbCrLumaCoefficients DeckLinkOutput::preferred_ycbcr_coefficients() const
 360 {
 361         if (current_mode_flags & bmdDisplayModeColorspaceRec601) {
 362                 return YCBCR_REC_601;
 363         } else {
 364                 // Don't bother checking bmdDisplayModeColorspaceRec709;
 365                 // if none is set, 709 is a good default anyway.
 366                 return YCBCR_REC_709;
 367         }
 368 }
 369
 370 HRESULT DeckLinkOutput::ScheduledFrameCompleted(/* in */ IDeckLinkVideoFrame *completedFrame, /* in */ BMDOutputFrameCompletionResult result)
 371 {
 372         Frame *frame = static_cast<Frame *>(completedFrame);
 373         switch (result) {
 374         case bmdOutputFrameCompleted:
 375                 break;
 376         case bmdOutputFrameDisplayedLate:
 377                 fprintf(stderr, "Output frame displayed late (pts=%ld)\n", frame->pts);
 378                 fprintf(stderr, "Consider increasing --output-buffer-frames if this persists.\n");
 379                 break;
 380         case bmdOutputFrameDropped:
 381                 fprintf(stderr, "Output frame was dropped (pts=%ld)\n", frame->pts);
 382                 fprintf(stderr, "Consider increasing --output-buffer-frames if this persists.\n");
 383                 break;
 384         case bmdOutputFrameFlushed:
 385                 fprintf(stderr, "Output frame was flushed (pts=%ld)\n", frame->pts);
 386                 break;
 387         default:
 388                 fprintf(stderr, "Output frame completed with unknown status %d\n", result);
 389                 break;
 390         }
 391
 392         static int frameno = 0;
 393         print_latency("DeckLink output latency (frame received → output on HDMI):", frame->received_ts, false, &frameno);
 394
 395         {
 396                 lock_guard<mutex> lock(frame_queue_mutex);
 397                 frame_freelist.push(unique_ptr<Frame>(frame));
 398                 --num_frames_in_flight;
 399         }
 400
 401         return S_OK;
 402 }
 403
 404 HRESULT DeckLinkOutput::ScheduledPlaybackHasStopped()
 405 {
 406         printf("playback stopped!\n");
 407         return S_OK;
 408 }
 409
 410 unique_ptr<DeckLinkOutput::Frame> DeckLinkOutput::get_frame()
 411 {
 412         lock_guard<mutex> lock(frame_queue_mutex);
 413
 414         if (!frame_freelist.empty()) {
 415                 unique_ptr<Frame> frame = move(frame_freelist.front());
 416                 frame_freelist.pop();
 417                 return frame;
 418         }
 419
 420         unique_ptr<Frame> frame(new Frame);
 421
 422         size_t stride;
 423         if (global_flags.ten_bit_output) {
 424                 stride = v210Converter::get_v210_stride(width);
 425                 GLint v210_width = stride / sizeof(uint32_t);
 426                 frame->uyvy_tex = resource_pool->create_2d_texture(GL_RGB10_A2, v210_width, height);
 427
 428                 // We need valid texture state, or NVIDIA won't allow us to write to the texture.
 429                 glBindTexture(GL_TEXTURE_2D, frame->uyvy_tex);
 430                 check_error();
 431                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 432                 check_error();
 433         } else {
 434                 stride = width * 2;
 435                 frame->uyvy_tex = resource_pool->create_2d_texture(GL_RGBA8, width / 2, height);
 436         }
 437
 438         glGenBuffers(1, &frame->pbo);
 439         check_error();
 440         glBindBuffer(GL_PIXEL_PACK_BUFFER, frame->pbo);
 441         check_error();
 442         glBufferStorage(GL_PIXEL_PACK_BUFFER, stride * height, NULL, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
 443         check_error();
 444         frame->uyvy_ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, stride * height, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
 445         check_error();
 446         frame->uyvy_ptr_local.reset(new uint8_t[stride * height]);
 447         frame->resource_pool = resource_pool;
 448
 449         return frame;
 450 }
 451
 452 void DeckLinkOutput::present_thread_func()
 453 {
 454         pthread_setname_np(pthread_self(), "DeckLinkOutput");
 455         for ( ;; ) {
 456                 unique_ptr<Frame> frame;
 457                 {
 458                         unique_lock<mutex> lock(frame_queue_mutex);
 459                         frame_queues_changed.wait(lock, [this]{
 460                                 return should_quit.should_quit() || !pending_video_frames.empty();
 461                         });
 462                         if (should_quit.should_quit()) {
 463                                 return;
 464                         }
 465                         frame = move(pending_video_frames.front());
 466                         pending_video_frames.pop();
 467                         ++num_frames_in_flight;
 468                 }
 469
 470                 glClientWaitSync(frame->fence.get(), /*flags=*/0, GL_TIMEOUT_IGNORED);
 471                 check_error();
 472                 frame->fence.reset();
 473
 474                 if (global_flags.ten_bit_output) {
 475                         memcpy(frame->uyvy_ptr_local.get(), frame->uyvy_ptr, v210Converter::get_v210_stride(width) * height);
 476                 } else {
 477                         memcpy(frame->uyvy_ptr_local.get(), frame->uyvy_ptr, width * height * 2);
 478                 }
 479
 480                 // Release any input frames we needed to render this frame.
 481                 frame->input_frames.clear();
 482
 483                 BMDTimeValue pts = frame->pts;
 484                 BMDTimeValue duration = frame->duration;
 485                 HRESULT res = output->ScheduleVideoFrame(frame.get(), pts, duration, TIMEBASE);
 486                 if (res == S_OK) {
 487                         frame.release();  // Owned by the driver now.
 488                 } else {
 489                         fprintf(stderr, "Could not schedule video frame! (error=0x%08x)\n", res);
 490
 491                         lock_guard<mutex> lock(frame_queue_mutex);
 492                         frame_freelist.push(move(frame));
 493                         --num_frames_in_flight;
 494                 }
 495         }
 496 }
 497
 498 HRESULT STDMETHODCALLTYPE DeckLinkOutput::QueryInterface(REFIID, LPVOID *)
 499 {
 500         return E_NOINTERFACE;
 501 }
 502
 503 ULONG STDMETHODCALLTYPE DeckLinkOutput::AddRef()
 504 {
 505         return refcount.fetch_add(1) + 1;
 506 }
 507
 508 ULONG STDMETHODCALLTYPE DeckLinkOutput::Release()
 509 {
 510         int new_ref = refcount.fetch_sub(1) - 1;
 511         if (new_ref == 0)
 512                 delete this;
 513         return new_ref;
 514 }
 515
 516 DeckLinkOutput::Frame::~Frame()
 517 {
 518         glBindBuffer(GL_PIXEL_PACK_BUFFER, pbo);
 519         check_error();
 520         glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
 521         check_error();
 522         glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
 523         check_error();
 524         glDeleteBuffers(1, &pbo);
 525         check_error();
 526         resource_pool->release_2d_texture(uyvy_tex);
 527         check_error();
 528 }
 529
 530 HRESULT STDMETHODCALLTYPE DeckLinkOutput::Frame::QueryInterface(REFIID, LPVOID *)
 531 {
 532         return E_NOINTERFACE;
 533 }
 534
 535 ULONG STDMETHODCALLTYPE DeckLinkOutput::Frame::AddRef()
 536 {
 537         return refcount.fetch_add(1) + 1;
 538 }
 539
 540 ULONG STDMETHODCALLTYPE DeckLinkOutput::Frame::Release()
 541 {
 542         int new_ref = refcount.fetch_sub(1) - 1;
 543         if (new_ref == 0)
 544                 delete this;
 545         return new_ref;
 546 }
 547
 548 long DeckLinkOutput::Frame::GetWidth()
 549 {
 550         return global_flags.width;
 551 }
 552
 553 long DeckLinkOutput::Frame::GetHeight()
 554 {
 555         return global_flags.height;
 556 }
 557
 558 long DeckLinkOutput::Frame::GetRowBytes()
 559 {
 560         if (global_flags.ten_bit_output) {
 561                 return v210Converter::get_v210_stride(global_flags.width);
 562         } else {
 563                 return global_flags.width * 2;
 564         }
 565 }
 566
 567 BMDPixelFormat DeckLinkOutput::Frame::GetPixelFormat()
 568 {
 569         if (global_flags.ten_bit_output) {
 570                 return bmdFormat10BitYUV;
 571         } else {
 572                 return bmdFormat8BitYUV;
 573         }
 574 }
 575
 576 BMDFrameFlags DeckLinkOutput::Frame::GetFlags()
 577 {
 578         return bmdFrameFlagDefault;
 579 }
 580
 581 HRESULT DeckLinkOutput::Frame::GetBytes(/* out */ void **buffer)
 582 {
 583         *buffer = uyvy_ptr_local.get();
 584         return S_OK;
 585 }
 586
 587 HRESULT DeckLinkOutput::Frame::GetTimecode(/* in */ BMDTimecodeFormat format, /* out */ IDeckLinkTimecode **timecode)
 588 {
 589         fprintf(stderr, "STUB: GetTimecode()\n");
 590         return E_NOTIMPL;
 591 }
 592
 593 HRESULT DeckLinkOutput::Frame::GetAncillaryData(/* out */ IDeckLinkVideoFrameAncillary **ancillary)
 594 {
 595         fprintf(stderr, "STUB: GetAncillaryData()\n");
 596         return E_NOTIMPL;
 597 }