1 #include <movit/effect_util.h>
2 #include <movit/util.h>
3 #include <movit/resource_pool.h> // Must be above the Xlib includes.
8 #include "chroma_subsampler.h"
9 #include "decklink_output.h"
10 #include "decklink_util.h"
12 #include "print_latency.h"
13 #include "resource_pool.h"
15 #include "v210_converter.h"
17 using namespace movit;
19 using namespace std::chrono;
23 // This class can be deleted during regular use, so make all the metrics static.
24 bool metrics_inited = false;
25 LatencyHistogram latency_histogram;
26 atomic<int64_t> metric_decklink_output_width_pixels{-1};
27 atomic<int64_t> metric_decklink_output_height_pixels{-1};
28 atomic<int64_t> metric_decklink_output_frame_rate_den{-1};
29 atomic<int64_t> metric_decklink_output_frame_rate_nom{-1};
30 atomic<int64_t> metric_decklink_output_inflight_frames{0};
31 atomic<int64_t> metric_decklink_output_color_mismatch_frames{0};
33 atomic<int64_t> metric_decklink_output_scheduled_frames_dropped{0};
34 atomic<int64_t> metric_decklink_output_scheduled_frames_late{0};
35 atomic<int64_t> metric_decklink_output_scheduled_frames_normal{0};
36 atomic<int64_t> metric_decklink_output_scheduled_frames_preroll{0};
38 atomic<int64_t> metric_decklink_output_completed_frames_completed{0};
39 atomic<int64_t> metric_decklink_output_completed_frames_dropped{0};
40 atomic<int64_t> metric_decklink_output_completed_frames_flushed{0};
41 atomic<int64_t> metric_decklink_output_completed_frames_late{0};
42 atomic<int64_t> metric_decklink_output_completed_frames_unknown{0};
44 atomic<int64_t> metric_decklink_output_scheduled_samples{0};
48 DeckLinkOutput::DeckLinkOutput(ResourcePool *resource_pool, QSurface *surface, unsigned width, unsigned height, unsigned card_index)
49 : resource_pool(resource_pool), surface(surface), width(width), height(height), card_index(card_index)
51 chroma_subsampler.reset(new ChromaSubsampler(resource_pool));
53 if (!metrics_inited) {
54 latency_histogram.init("decklink_output");
55 global_metrics.add("decklink_output_width_pixels", &metric_decklink_output_width_pixels, Metrics::TYPE_GAUGE);
56 global_metrics.add("decklink_output_height_pixels", &metric_decklink_output_height_pixels, Metrics::TYPE_GAUGE);
57 global_metrics.add("decklink_output_frame_rate_den", &metric_decklink_output_frame_rate_den, Metrics::TYPE_GAUGE);
58 global_metrics.add("decklink_output_frame_rate_nom", &metric_decklink_output_frame_rate_nom, Metrics::TYPE_GAUGE);
59 global_metrics.add("decklink_output_inflight_frames", &metric_decklink_output_inflight_frames, Metrics::TYPE_GAUGE);
60 global_metrics.add("decklink_output_color_mismatch_frames", &metric_decklink_output_color_mismatch_frames);
62 global_metrics.add("decklink_output_scheduled_frames", {{ "status", "dropped" }}, &metric_decklink_output_scheduled_frames_dropped);
63 global_metrics.add("decklink_output_scheduled_frames", {{ "status", "late" }}, &metric_decklink_output_scheduled_frames_late);
64 global_metrics.add("decklink_output_scheduled_frames", {{ "status", "normal" }}, &metric_decklink_output_scheduled_frames_normal);
65 global_metrics.add("decklink_output_scheduled_frames", {{ "status", "preroll" }}, &metric_decklink_output_scheduled_frames_preroll);
67 global_metrics.add("decklink_output_completed_frames", {{ "status", "completed" }}, &metric_decklink_output_completed_frames_completed);
68 global_metrics.add("decklink_output_completed_frames", {{ "status", "dropped" }}, &metric_decklink_output_completed_frames_dropped);
69 global_metrics.add("decklink_output_completed_frames", {{ "status", "flushed" }}, &metric_decklink_output_completed_frames_flushed);
70 global_metrics.add("decklink_output_completed_frames", {{ "status", "late" }}, &metric_decklink_output_completed_frames_late);
71 global_metrics.add("decklink_output_completed_frames", {{ "status", "unknown" }}, &metric_decklink_output_completed_frames_unknown);
73 global_metrics.add("decklink_output_scheduled_samples", &metric_decklink_output_scheduled_samples);
75 metrics_inited = true;
79 void DeckLinkOutput::set_device(IDeckLink *decklink)
81 if (decklink->QueryInterface(IID_IDeckLinkOutput, (void**)&output) != S_OK) {
82 fprintf(stderr, "Card %u has no outputs\n", card_index);
86 IDeckLinkDisplayModeIterator *mode_it;
87 if (output->GetDisplayModeIterator(&mode_it) != S_OK) {
88 fprintf(stderr, "Failed to enumerate output display modes for card %u\n", card_index);
94 for (const auto &it : summarize_video_modes(mode_it, card_index)) {
95 if (it.second.width != width || it.second.height != height) {
99 // We could support interlaced modes, but let's stay out of it for now,
100 // since we don't have interlaced stream output.
101 if (it.second.interlaced) {
105 video_modes.insert(it);
110 // HDMI or SDI generally mean “both HDMI and SDI at the same time” on DeckLink cards
111 // that support both; pick_default_video_connection() will generally pick one of those
112 // if they exist. We're not very likely to need analog outputs, so we don't need a way
113 // to change beyond that.
114 video_connection = pick_default_video_connection(decklink, BMDDeckLinkVideoOutputConnections, card_index);
117 void DeckLinkOutput::start_output(uint32_t mode, int64_t base_pts)
120 assert(!playback_initiated);
122 if (video_modes.empty()) {
123 fprintf(stderr, "ERROR: No matching output modes for %dx%d found\n", width, height);
127 should_quit.unquit();
128 playback_initiated = true;
129 playback_started = false;
130 this->base_pts = base_pts;
132 IDeckLinkConfiguration *config = nullptr;
133 if (output->QueryInterface(IID_IDeckLinkConfiguration, (void**)&config) != S_OK) {
134 fprintf(stderr, "Failed to get configuration interface for output card\n");
137 if (config->SetFlag(bmdDeckLinkConfigLowLatencyVideoOutput, true) != S_OK) {
138 fprintf(stderr, "Failed to set low latency output\n");
141 if (config->SetInt(bmdDeckLinkConfigVideoOutputConnection, video_connection) != S_OK) {
142 fprintf(stderr, "Failed to set video output connection for card %u\n", card_index);
145 if (config->SetFlag(bmdDeckLinkConfigUse1080pNotPsF, true) != S_OK) {
146 fprintf(stderr, "Failed to set PsF flag for card\n");
149 if (config->SetFlag(bmdDeckLinkConfigSMPTELevelAOutput, true) != S_OK) {
150 // This affects at least some no-name SDI->HDMI converters.
151 // Warn, but don't die.
152 fprintf(stderr, "WARNING: Failed to enable SMTPE Level A; resolutions like 1080p60 might have issues.\n");
155 BMDDisplayModeSupport support;
156 IDeckLinkDisplayMode *display_mode;
157 BMDPixelFormat pixel_format = global_flags.ten_bit_output ? bmdFormat10BitYUV : bmdFormat8BitYUV;
158 if (output->DoesSupportVideoMode(mode, pixel_format, bmdVideoOutputFlagDefault,
159 &support, &display_mode) != S_OK) {
160 fprintf(stderr, "Couldn't ask for format support\n");
164 if (support == bmdDisplayModeNotSupported) {
165 fprintf(stderr, "Requested display mode not supported\n");
169 current_mode_flags = display_mode->GetFlags();
171 BMDTimeValue time_value;
172 BMDTimeScale time_scale;
173 if (display_mode->GetFrameRate(&time_value, &time_scale) != S_OK) {
174 fprintf(stderr, "Couldn't get frame rate\n");
178 metric_decklink_output_width_pixels = width;
179 metric_decklink_output_height_pixels = height;
180 metric_decklink_output_frame_rate_nom = time_value;
181 metric_decklink_output_frame_rate_den = time_scale;
183 frame_duration = time_value * TIMEBASE / time_scale;
185 display_mode->Release();
187 HRESULT result = output->EnableVideoOutput(mode, bmdVideoOutputFlagDefault);
188 if (result != S_OK) {
189 fprintf(stderr, "Couldn't enable output with error 0x%x\n", result);
192 if (output->SetScheduledFrameCompletionCallback(this) != S_OK) {
193 fprintf(stderr, "Couldn't set callback\n");
196 assert(OUTPUT_FREQUENCY == 48000);
197 if (output->EnableAudioOutput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, 2, bmdAudioOutputStreamTimestamped) != S_OK) {
198 fprintf(stderr, "Couldn't enable audio output\n");
201 if (output->BeginAudioPreroll() != S_OK) {
202 fprintf(stderr, "Couldn't begin audio preroll\n");
206 present_thread = thread([this]{
207 QOpenGLContext *context = create_context(this->surface);
208 eglBindAPI(EGL_OPENGL_API);
209 if (!make_current(context, this->surface)) {
210 printf("display=%p surface=%p context=%p curr=%p err=%d\n", eglGetCurrentDisplay(), this->surface, context, eglGetCurrentContext(),
214 present_thread_func();
215 delete_context(context);
219 void DeckLinkOutput::end_output()
221 if (!playback_initiated) {
226 frame_queues_changed.notify_all();
227 present_thread.join();
228 playback_initiated = false;
230 output->StopScheduledPlayback(0, nullptr, 0);
231 output->DisableVideoOutput();
232 output->DisableAudioOutput();
234 // Wait until all frames are accounted for, and free them.
236 unique_lock<mutex> lock(frame_queue_mutex);
237 while (!(frame_freelist.empty() && num_frames_in_flight == 0)) {
238 frame_queues_changed.wait(lock, [this]{ return !frame_freelist.empty(); });
239 frame_freelist.pop();
244 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)
246 assert(!should_quit.should_quit());
248 if ((current_mode_flags & bmdDisplayModeColorspaceRec601) && output_ycbcr_coefficients == YCBCR_REC_709) {
249 if (!last_frame_had_mode_mismatch) {
250 fprintf(stderr, "WARNING: Chosen output mode expects Rec. 601 Y'CbCr coefficients.\n");
251 fprintf(stderr, " Consider --output-ycbcr-coefficients=rec601 (or =auto).\n");
253 last_frame_had_mode_mismatch = true;
254 ++metric_decklink_output_color_mismatch_frames;
255 } else if ((current_mode_flags & bmdDisplayModeColorspaceRec709) && output_ycbcr_coefficients == YCBCR_REC_601) {
256 if (!last_frame_had_mode_mismatch) {
257 fprintf(stderr, "WARNING: Chosen output mode expects Rec. 709 Y'CbCr coefficients.\n");
258 fprintf(stderr, " Consider --output-ycbcr-coefficients=rec709 (or =auto).\n");
260 last_frame_had_mode_mismatch = true;
261 ++metric_decklink_output_color_mismatch_frames;
263 last_frame_had_mode_mismatch = false;
266 unique_ptr<Frame> frame = move(get_frame());
267 if (global_flags.ten_bit_output) {
268 chroma_subsampler->create_v210(y_tex, cbcr_tex, width, height, frame->uyvy_tex);
270 chroma_subsampler->create_uyvy(y_tex, cbcr_tex, width, height, frame->uyvy_tex);
273 // Download the UYVY texture to the PBO.
274 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
277 glBindBuffer(GL_PIXEL_PACK_BUFFER, frame->pbo);
280 if (global_flags.ten_bit_output) {
281 glBindTexture(GL_TEXTURE_2D, frame->uyvy_tex);
283 glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, BUFFER_OFFSET(0));
286 glBindTexture(GL_TEXTURE_2D, frame->uyvy_tex);
288 glGetTexImage(GL_TEXTURE_2D, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, BUFFER_OFFSET(0));
292 glBindTexture(GL_TEXTURE_2D, 0);
294 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
297 glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
300 frame->fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
302 glFlush(); // Make the DeckLink thread see the fence as soon as possible.
305 frame->input_frames = input_frames;
306 frame->received_ts = find_received_timestamp(input_frames);
308 frame->duration = duration;
311 unique_lock<mutex> lock(frame_queue_mutex);
312 pending_video_frames.push(move(frame));
314 frame_queues_changed.notify_all();
317 void DeckLinkOutput::send_audio(int64_t pts, const std::vector<float> &samples)
319 unique_ptr<int32_t[]> int_samples(new int32_t[samples.size()]);
320 for (size_t i = 0; i < samples.size(); ++i) {
321 int_samples[i] = lrintf(samples[i] * 2147483648.0f);
324 uint32_t frames_written;
325 HRESULT result = output->ScheduleAudioSamples(int_samples.get(), samples.size() / 2,
326 pts, TIMEBASE, &frames_written);
327 if (result != S_OK) {
328 fprintf(stderr, "ScheduleAudioSamples(pts=%ld) failed (result=0x%08x)\n", pts, result);
330 if (frames_written != samples.size() / 2) {
331 fprintf(stderr, "ScheduleAudioSamples() returned short write (%u/%ld)\n", frames_written, samples.size() / 2);
334 metric_decklink_output_scheduled_samples += samples.size() / 2;
337 void DeckLinkOutput::wait_for_frame(int64_t pts, int *dropped_frames, int64_t *frame_duration, bool *is_preroll, steady_clock::time_point *frame_timestamp)
339 assert(!should_quit.should_quit());
342 *frame_duration = this->frame_duration;
344 const BMDTimeValue buffer = lrint(*frame_duration * global_flags.output_buffer_frames);
345 const BMDTimeValue max_overshoot = lrint(*frame_duration * global_flags.output_slop_frames);
346 BMDTimeValue target_time = pts - buffer;
348 // While prerolling, we send out frames as quickly as we can.
349 if (target_time < base_pts) {
351 ++metric_decklink_output_scheduled_frames_preroll;
355 *is_preroll = !playback_started;
357 if (!playback_started) {
358 if (output->EndAudioPreroll() != S_OK) {
359 fprintf(stderr, "Could not end audio preroll\n");
362 if (output->StartScheduledPlayback(base_pts, TIMEBASE, 1.0) != S_OK) {
363 fprintf(stderr, "Could not start playback\n");
366 playback_started = true;
369 BMDTimeValue stream_frame_time;
370 double playback_speed;
371 output->GetScheduledStreamTime(TIMEBASE, &stream_frame_time, &playback_speed);
373 *frame_timestamp = steady_clock::now() +
374 nanoseconds((target_time - stream_frame_time) * 1000000000 / TIMEBASE);
376 // If we're ahead of time, wait for the frame to (approximately) start.
377 if (stream_frame_time < target_time) {
378 should_quit.sleep_until(*frame_timestamp);
379 ++metric_decklink_output_scheduled_frames_normal;
383 // If we overshot the previous frame by just a little,
384 // fire off one immediately.
385 if (stream_frame_time < target_time + max_overshoot) {
386 fprintf(stderr, "Warning: Frame was %ld ms late (but not skipping it due to --output-slop-frames).\n",
387 lrint((stream_frame_time - target_time) * 1000.0 / TIMEBASE));
388 ++metric_decklink_output_scheduled_frames_late;
392 // Oops, we missed by more than one frame. Return immediately,
393 // but drop so that we catch up.
394 *dropped_frames = (stream_frame_time - target_time + *frame_duration - 1) / *frame_duration;
395 const int64_t ns_per_frame = this->frame_duration * 1000000000 / TIMEBASE;
396 *frame_timestamp += nanoseconds(*dropped_frames * ns_per_frame);
397 fprintf(stderr, "Dropped %d output frames; skipping.\n", *dropped_frames);
398 metric_decklink_output_scheduled_frames_dropped += *dropped_frames;
399 ++metric_decklink_output_scheduled_frames_normal;
402 uint32_t DeckLinkOutput::pick_video_mode(uint32_t mode) const
404 if (video_modes.count(mode)) {
408 // Prioritize 59.94 > 60 > 29.97. If none of those are found, then pick the highest one.
409 for (const pair<int, int> &desired : vector<pair<int, int>>{ { 60000, 1001 }, { 60, 0 }, { 30000, 1001 } }) {
410 for (const auto &it : video_modes) {
411 if (it.second.frame_rate_num * desired.second == desired.first * it.second.frame_rate_den) {
417 uint32_t best_mode = 0;
418 double best_fps = 0.0;
419 for (const auto &it : video_modes) {
420 double fps = double(it.second.frame_rate_num) / it.second.frame_rate_den;
421 if (fps > best_fps) {
422 best_mode = it.first;
429 YCbCrLumaCoefficients DeckLinkOutput::preferred_ycbcr_coefficients() const
431 if (current_mode_flags & bmdDisplayModeColorspaceRec601) {
432 return YCBCR_REC_601;
434 // Don't bother checking bmdDisplayModeColorspaceRec709;
435 // if none is set, 709 is a good default anyway.
436 return YCBCR_REC_709;
440 HRESULT DeckLinkOutput::ScheduledFrameCompleted(/* in */ IDeckLinkVideoFrame *completedFrame, /* in */ BMDOutputFrameCompletionResult result)
442 Frame *frame = static_cast<Frame *>(completedFrame);
444 case bmdOutputFrameCompleted:
445 ++metric_decklink_output_completed_frames_completed;
447 case bmdOutputFrameDisplayedLate:
448 fprintf(stderr, "Output frame displayed late (pts=%ld)\n", frame->pts);
449 fprintf(stderr, "Consider increasing --output-buffer-frames if this persists.\n");
450 ++metric_decklink_output_completed_frames_late;
452 case bmdOutputFrameDropped:
453 fprintf(stderr, "Output frame was dropped (pts=%ld)\n", frame->pts);
454 fprintf(stderr, "Consider increasing --output-buffer-frames if this persists.\n");
455 ++metric_decklink_output_completed_frames_dropped;
457 case bmdOutputFrameFlushed:
458 fprintf(stderr, "Output frame was flushed (pts=%ld)\n", frame->pts);
459 ++metric_decklink_output_completed_frames_flushed;
462 fprintf(stderr, "Output frame completed with unknown status %d\n", result);
463 ++metric_decklink_output_completed_frames_unknown;
467 static int frameno = 0;
468 print_latency("DeckLink output latency (frame received → output on HDMI):", frame->received_ts, false, &frameno, &latency_histogram);
471 lock_guard<mutex> lock(frame_queue_mutex);
472 frame_freelist.push(unique_ptr<Frame>(frame));
473 --num_frames_in_flight;
474 --metric_decklink_output_inflight_frames;
480 HRESULT DeckLinkOutput::ScheduledPlaybackHasStopped()
482 printf("playback stopped!\n");
486 unique_ptr<DeckLinkOutput::Frame> DeckLinkOutput::get_frame()
488 lock_guard<mutex> lock(frame_queue_mutex);
490 if (!frame_freelist.empty()) {
491 unique_ptr<Frame> frame = move(frame_freelist.front());
492 frame_freelist.pop();
496 unique_ptr<Frame> frame(new Frame);
499 if (global_flags.ten_bit_output) {
500 stride = v210Converter::get_v210_stride(width);
501 GLint v210_width = stride / sizeof(uint32_t);
502 frame->uyvy_tex = resource_pool->create_2d_texture(GL_RGB10_A2, v210_width, height);
504 // We need valid texture state, or NVIDIA won't allow us to write to the texture.
505 glBindTexture(GL_TEXTURE_2D, frame->uyvy_tex);
507 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
511 frame->uyvy_tex = resource_pool->create_2d_texture(GL_RGBA8, width / 2, height);
514 glGenBuffers(1, &frame->pbo);
516 glBindBuffer(GL_PIXEL_PACK_BUFFER, frame->pbo);
518 glBufferStorage(GL_PIXEL_PACK_BUFFER, stride * height, NULL, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
520 frame->uyvy_ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, stride * height, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
522 frame->uyvy_ptr_local.reset(new uint8_t[stride * height]);
523 frame->resource_pool = resource_pool;
528 void DeckLinkOutput::present_thread_func()
530 pthread_setname_np(pthread_self(), "DeckLinkOutput");
532 unique_ptr<Frame> frame;
534 unique_lock<mutex> lock(frame_queue_mutex);
535 frame_queues_changed.wait(lock, [this]{
536 return should_quit.should_quit() || !pending_video_frames.empty();
538 if (should_quit.should_quit()) {
541 frame = move(pending_video_frames.front());
542 pending_video_frames.pop();
543 ++num_frames_in_flight;
544 ++metric_decklink_output_inflight_frames;
547 glClientWaitSync(frame->fence.get(), /*flags=*/0, GL_TIMEOUT_IGNORED);
549 frame->fence.reset();
551 if (global_flags.ten_bit_output) {
552 memcpy(frame->uyvy_ptr_local.get(), frame->uyvy_ptr, v210Converter::get_v210_stride(width) * height);
554 memcpy(frame->uyvy_ptr_local.get(), frame->uyvy_ptr, width * height * 2);
557 // Release any input frames we needed to render this frame.
558 frame->input_frames.clear();
560 BMDTimeValue pts = frame->pts;
561 BMDTimeValue duration = frame->duration;
562 HRESULT res = output->ScheduleVideoFrame(frame.get(), pts, duration, TIMEBASE);
564 frame.release(); // Owned by the driver now.
566 fprintf(stderr, "Could not schedule video frame! (error=0x%08x)\n", res);
568 lock_guard<mutex> lock(frame_queue_mutex);
569 frame_freelist.push(move(frame));
570 --num_frames_in_flight;
571 --metric_decklink_output_inflight_frames;
576 HRESULT STDMETHODCALLTYPE DeckLinkOutput::QueryInterface(REFIID, LPVOID *)
578 return E_NOINTERFACE;
581 ULONG STDMETHODCALLTYPE DeckLinkOutput::AddRef()
583 return refcount.fetch_add(1) + 1;
586 ULONG STDMETHODCALLTYPE DeckLinkOutput::Release()
588 int new_ref = refcount.fetch_sub(1) - 1;
594 DeckLinkOutput::Frame::~Frame()
596 glBindBuffer(GL_PIXEL_PACK_BUFFER, pbo);
598 glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
600 glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
602 glDeleteBuffers(1, &pbo);
604 resource_pool->release_2d_texture(uyvy_tex);
608 HRESULT STDMETHODCALLTYPE DeckLinkOutput::Frame::QueryInterface(REFIID, LPVOID *)
610 return E_NOINTERFACE;
613 ULONG STDMETHODCALLTYPE DeckLinkOutput::Frame::AddRef()
615 return refcount.fetch_add(1) + 1;
618 ULONG STDMETHODCALLTYPE DeckLinkOutput::Frame::Release()
620 int new_ref = refcount.fetch_sub(1) - 1;
626 long DeckLinkOutput::Frame::GetWidth()
628 return global_flags.width;
631 long DeckLinkOutput::Frame::GetHeight()
633 return global_flags.height;
636 long DeckLinkOutput::Frame::GetRowBytes()
638 if (global_flags.ten_bit_output) {
639 return v210Converter::get_v210_stride(global_flags.width);
641 return global_flags.width * 2;
645 BMDPixelFormat DeckLinkOutput::Frame::GetPixelFormat()
647 if (global_flags.ten_bit_output) {
648 return bmdFormat10BitYUV;
650 return bmdFormat8BitYUV;
654 BMDFrameFlags DeckLinkOutput::Frame::GetFlags()
656 return bmdFrameFlagDefault;
659 HRESULT DeckLinkOutput::Frame::GetBytes(/* out */ void **buffer)
661 *buffer = uyvy_ptr_local.get();
665 HRESULT DeckLinkOutput::Frame::GetTimecode(/* in */ BMDTimecodeFormat format, /* out */ IDeckLinkTimecode **timecode)
667 fprintf(stderr, "STUB: GetTimecode()\n");
671 HRESULT DeckLinkOutput::Frame::GetAncillaryData(/* out */ IDeckLinkVideoFrameAncillary **ancillary)
673 fprintf(stderr, "STUB: GetAncillaryData()\n");