#include <movit/effect_util.h>
#include <movit/util.h>
#include <movit/resource_pool.h> // Must be above the Xlib includes.
+#include <pthread.h>
#include <epoxy/egl.h>
}
mode_it->Release();
+
+ // HDMI or SDI generally mean “both HDMI and SDI at the same time” on DeckLink cards
+ // that support both; pick_default_video_connection() will generally pick one of those
+ // if they exist. We're not very likely to need analog outputs, so we don't need a way
+ // to change beyond that.
+ video_connection = pick_default_video_connection(decklink, BMDDeckLinkVideoOutputConnections, card_index);
}
void DeckLinkOutput::start_output(uint32_t mode, int64_t base_pts)
{
assert(output);
+ assert(!playback_initiated);
should_quit = false;
+ playback_initiated = true;
playback_started = false;
this->base_pts = base_pts;
fprintf(stderr, "Failed to set low latency output\n");
exit(1);
}
- // HDMI or SDI generally mean “both HDMI and SDI at the same time” on DeckLink cards.
- // We're not very likely to need analog outputs.
- if (config->SetInt(bmdDeckLinkConfigVideoOutputConnection, bmdVideoConnectionHDMI) != S_OK) {
+ if (config->SetInt(bmdDeckLinkConfigVideoOutputConnection, video_connection) != S_OK) {
fprintf(stderr, "Failed to set video output connection for card %u\n", card_index);
exit(1);
}
fprintf(stderr, "Failed to set PsF flag for card\n");
exit(1);
}
+ if (config->SetFlag(bmdDeckLinkConfigSMPTELevelAOutput, true) != S_OK) {
+ // This affects at least some no-name SDI->HDMI converters.
+ // Warn, but don't die.
+ fprintf(stderr, "WARNING: Failed to enable SMTPE Level A; resolutions like 1080p60 might have issues.\n");
+ }
BMDDisplayModeSupport support;
IDeckLinkDisplayMode *display_mode;
exit(1);
}
- BMDDisplayModeFlags flags = display_mode->GetFlags();
- if ((flags & bmdDisplayModeColorspaceRec601) && global_flags.ycbcr_rec709_coefficients) {
- fprintf(stderr, "WARNING: Chosen output mode expects Rec. 601 Y'CbCr coefficients.\n");
- fprintf(stderr, " Consider --output-ycbcr-coefficients=rec601 (or =auto).\n");
- } else if ((flags & bmdDisplayModeColorspaceRec709) && !global_flags.ycbcr_rec709_coefficients) {
- fprintf(stderr, "WARNING: Chosen output mode expects Rec. 709 Y'CbCr coefficients.\n");
- fprintf(stderr, " Consider --output-ycbcr-coefficients=rec709 (or =auto).\n");
- }
+ current_mode_flags = display_mode->GetFlags();
BMDTimeValue time_value;
BMDTimeScale time_scale;
void DeckLinkOutput::end_output()
{
+ if (!playback_initiated) {
+ return;
+ }
+
should_quit = true;
frame_queues_changed.notify_all();
present_thread.join();
+ playback_initiated = false;
output->StopScheduledPlayback(0, nullptr, 0);
output->DisableVideoOutput();
}
}
-void DeckLinkOutput::send_frame(GLuint y_tex, GLuint cbcr_tex, const vector<RefCountedFrame> &input_frames, int64_t pts, int64_t duration)
+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)
{
+ assert(!should_quit);
+
+ if ((current_mode_flags & bmdDisplayModeColorspaceRec601) && output_ycbcr_coefficients == YCBCR_REC_709) {
+ if (!last_frame_had_mode_mismatch) {
+ fprintf(stderr, "WARNING: Chosen output mode expects Rec. 601 Y'CbCr coefficients.\n");
+ fprintf(stderr, " Consider --output-ycbcr-coefficients=rec601 (or =auto).\n");
+ }
+ last_frame_had_mode_mismatch = true;
+ } else if ((current_mode_flags & bmdDisplayModeColorspaceRec709) && output_ycbcr_coefficients == YCBCR_REC_601) {
+ if (!last_frame_had_mode_mismatch) {
+ fprintf(stderr, "WARNING: Chosen output mode expects Rec. 709 Y'CbCr coefficients.\n");
+ fprintf(stderr, " Consider --output-ycbcr-coefficients=rec709 (or =auto).\n");
+ }
+ last_frame_had_mode_mismatch = true;
+ } else {
+ last_frame_had_mode_mismatch = false;
+ }
+
unique_ptr<Frame> frame = move(get_frame());
chroma_subsampler->create_uyvy(y_tex, cbcr_tex, width, height, frame->uyvy_tex);
}
}
-void DeckLinkOutput::wait_for_frame(int64_t pts, int *dropped_frames, int64_t *frame_duration)
+void DeckLinkOutput::wait_for_frame(int64_t pts, int *dropped_frames, int64_t *frame_duration, bool *is_preroll, steady_clock::time_point *frame_timestamp)
{
+ assert(!should_quit);
+
*dropped_frames = 0;
*frame_duration = this->frame_duration;
// While prerolling, we send out frames as quickly as we can.
if (target_time < base_pts) {
+ *is_preroll = true;
return;
}
+ *is_preroll = !playback_started;
+
if (!playback_started) {
if (output->EndAudioPreroll() != S_OK) {
fprintf(stderr, "Could not end audio preroll\n");
double playback_speed;
output->GetScheduledStreamTime(TIMEBASE, &stream_frame_time, &playback_speed);
+ *frame_timestamp = steady_clock::now() +
+ nanoseconds((target_time - stream_frame_time) * 1000000000 / TIMEBASE);
+
// If we're ahead of time, wait for the frame to (approximately) start.
if (stream_frame_time < target_time) {
- steady_clock::time_point t = steady_clock::now() +
- nanoseconds((target_time - stream_frame_time) * 1000000000 / TIMEBASE);
- this_thread::sleep_until(t);
+ this_thread::sleep_until(*frame_timestamp);
return;
}
// Oops, we missed by more than one frame. Return immediately,
// but drop so that we catch up.
*dropped_frames = (stream_frame_time - target_time + *frame_duration - 1) / *frame_duration;
+ const int64_t ns_per_frame = this->frame_duration * 1000000000 / TIMEBASE;
+ *frame_timestamp += nanoseconds(*dropped_frames * ns_per_frame);
fprintf(stderr, "Dropped %d output frames; skipping.\n", *dropped_frames);
}
+uint32_t DeckLinkOutput::pick_video_mode(uint32_t mode) const
+{
+ if (video_modes.count(mode)) {
+ return mode;
+ }
+
+ // Prioritize 59.94 > 60 > 29.97. If none of those are found, then pick the highest one.
+ for (const pair<int, int> &desired : vector<pair<int, int>>{ { 60000, 1001 }, { 60, 0 }, { 30000, 1001 } }) {
+ for (const auto &it : video_modes) {
+ if (it.second.frame_rate_num * desired.second == desired.first * it.second.frame_rate_den) {
+ return it.first;
+ }
+ }
+ }
+
+ uint32_t best_mode = 0;
+ double best_fps = 0.0;
+ for (const auto &it : video_modes) {
+ double fps = double(it.second.frame_rate_num) / it.second.frame_rate_den;
+ if (fps > best_fps) {
+ best_mode = it.first;
+ best_fps = fps;
+ }
+ }
+ return best_mode;
+}
+
+YCbCrLumaCoefficients DeckLinkOutput::preferred_ycbcr_coefficients() const
+{
+ if (current_mode_flags & bmdDisplayModeColorspaceRec601) {
+ return YCBCR_REC_601;
+ } else {
+ // Don't bother checking bmdDisplayModeColorspaceRec709;
+ // if none is set, 709 is a good default anyway.
+ return YCBCR_REC_709;
+ }
+}
+
HRESULT DeckLinkOutput::ScheduledFrameCompleted(/* in */ IDeckLinkVideoFrame *completedFrame, /* in */ BMDOutputFrameCompletionResult result)
{
Frame *frame = static_cast<Frame *>(completedFrame);
break;
}
- static int hei = 0;
- print_latency("DeckLink output latency (frame received → output on HDMI):", frame->received_ts, false, &hei);
+ static int frameno = 0;
+ print_latency("DeckLink output latency (frame received → output on HDMI):", frame->received_ts, false, &frameno);
{
lock_guard<mutex> lock(frame_queue_mutex);
void DeckLinkOutput::present_thread_func()
{
+ pthread_setname_np(pthread_self(), "DeckLinkOutput");
for ( ;; ) {
unique_ptr<Frame> frame;
{
projects / nageru / blobdiff