#include "shared/context.h"
#include "decklink_capture.h"
#include "decklink_output.h"
+#include "decklink_util.h"
#include "defs.h"
#include "shared/disk_space_estimator.h"
#include "ffmpeg_capture.h"
metric_input_queue_safe_length_frames = safe_queue_length;
}
-Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
+Mixer::Mixer(const QSurfaceFormat &format)
: httpd(),
- num_cards(num_cards),
mixer_surface(create_surface(format)),
h264_encoder_surface(create_surface(format)),
decklink_output_surface(create_surface(format)),
}
// Must be instantiated after VideoEncoder has initialized global_flags.use_zerocopy.
- theme.reset(new Theme(global_flags.theme_filename, global_flags.theme_dirs, resource_pool.get(), num_cards));
+ theme.reset(new Theme(global_flags.theme_filename, global_flags.theme_dirs, resource_pool.get()));
// Must be instantiated after the theme, as the theme decides the number of FFmpeg inputs.
std::vector<FFmpegCapture *> video_inputs = theme->get_video_inputs();
- audio_mixer.reset(new AudioMixer(num_cards, video_inputs.size()));
+ audio_mixer.reset(new AudioMixer);
httpd.add_endpoint("/channels", bind(&Mixer::get_channels_json, this), HTTPD::ALLOW_ALL_ORIGINS);
for (int channel_idx = 0; channel_idx < theme->get_num_channels(); ++channel_idx) {
{
IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
if (decklink_iterator != nullptr) {
- for ( ; card_index < num_cards; ++card_index) {
+ for ( ; card_index < unsigned(global_flags.max_num_cards); ++card_index) {
IDeckLink *decklink;
if (decklink_iterator->Next(&decklink) != S_OK) {
break;
}
+ if (!decklink_card_is_active(decklink, card_index)) {
+ fprintf(stderr, "DeckLink card %u is inactive in current profile, skipping (try changing it in Desktop Video Setup)\n", card_index);
+ decklink->Release();
+ continue;
+ }
+
DeckLinkCapture *capture = new DeckLinkCapture(decklink, card_index);
DeckLinkOutput *output = new DeckLinkOutput(resource_pool.get(), decklink_output_surface, global_flags.width, global_flags.height, card_index);
if (!output->set_device(decklink)) {
delete output;
output = nullptr;
}
- configure_card(card_index, capture, CardType::LIVE_CARD, output);
+ configure_card(card_index, capture, CardType::LIVE_CARD, output, /*is_srt_card=*/false);
++num_pci_devices;
}
decklink_iterator->Release();
}
unsigned num_usb_devices = BMUSBCapture::num_cards();
- for (unsigned usb_card_index = 0; usb_card_index < num_usb_devices && card_index < num_cards; ++usb_card_index, ++card_index) {
+ for (unsigned usb_card_index = 0; usb_card_index < num_usb_devices && card_index < unsigned(global_flags.max_num_cards); ++usb_card_index, ++card_index) {
BMUSBCapture *capture = new BMUSBCapture(usb_card_index);
capture->set_card_disconnected_callback(bind(&Mixer::bm_hotplug_remove, this, card_index));
- configure_card(card_index, capture, CardType::LIVE_CARD, /*output=*/nullptr);
+ configure_card(card_index, capture, CardType::LIVE_CARD, /*output=*/nullptr, /*is_srt_card=*/false);
}
fprintf(stderr, "Found %u USB card(s).\n", num_usb_devices);
+ // Fill up with fake cards for as long as we can, so that the FFmpeg
+ // and HTML cards always come last.
unsigned num_fake_cards = 0;
- for ( ; card_index < num_cards; ++card_index, ++num_fake_cards) {
- FakeCapture *capture = new FakeCapture(global_flags.width, global_flags.height, FAKE_FPS, OUTPUT_FREQUENCY, card_index, global_flags.fake_cards_audio);
- configure_card(card_index, capture, CardType::FAKE_CAPTURE, /*output=*/nullptr);
+#ifdef HAVE_CEF
+ size_t num_html_inputs = theme->get_html_inputs().size();
+#else
+ size_t num_html_inputs = 0;
+#endif
+ for ( ; card_index < MAX_VIDEO_CARDS - video_inputs.size() - num_html_inputs; ++card_index) {
+ // Only bother to activate fake capture cards to satisfy the minimum.
+ bool is_active = card_index < unsigned(global_flags.min_num_cards) || cards[card_index].force_active;
+ if (is_active) {
+ FakeCapture *capture = new FakeCapture(global_flags.width, global_flags.height, FAKE_FPS, OUTPUT_FREQUENCY, card_index, global_flags.fake_cards_audio);
+ configure_card(card_index, capture, CardType::FAKE_CAPTURE, /*output=*/nullptr, /*is_srt_card=*/false);
+ ++num_fake_cards;
+ } else {
+ configure_card(card_index, nullptr, CardType::FAKE_CAPTURE, /*output=*/nullptr, /*is_srt_card=*/false);
+ }
}
if (num_fake_cards > 0) {
fprintf(stderr, "Initialized %u fake cards.\n", num_fake_cards);
}
- // Initialize all video inputs the theme asked for. Note that these are
- // all put _after_ the regular cards, which stop at <num_cards> - 1.
+ // Initialize all video inputs the theme asked for.
for (unsigned video_card_index = 0; video_card_index < video_inputs.size(); ++card_index, ++video_card_index) {
if (card_index >= MAX_VIDEO_CARDS) {
fprintf(stderr, "ERROR: Not enough card slots available for the videos the theme requested.\n");
abort();
}
- configure_card(card_index, video_inputs[video_card_index], CardType::FFMPEG_INPUT, /*output=*/nullptr);
+ configure_card(card_index, video_inputs[video_card_index], CardType::FFMPEG_INPUT, /*output=*/nullptr, /*is_srt_card=*/false);
video_inputs[video_card_index]->set_card_index(card_index);
}
num_video_inputs = video_inputs.size();
fprintf(stderr, "ERROR: Not enough card slots available for the HTML inputs the theme requested.\n");
abort();
}
- configure_card(card_index, html_inputs[html_card_index], CardType::CEF_INPUT, /*output=*/nullptr);
+ configure_card(card_index, html_inputs[html_card_index], CardType::CEF_INPUT, /*output=*/nullptr, /*is_srt_card=*/false);
html_inputs[html_card_index]->set_card_index(card_index);
}
num_html_inputs = html_inputs.size();
}
#endif
- for (unsigned card_index = 0; card_index < num_cards + num_video_inputs + num_html_inputs; ++card_index) {
- cards[card_index].queue_length_policy.reset(card_index);
- }
-
chroma_subsampler.reset(new ChromaSubsampler(resource_pool.get()));
if (global_flags.ten_bit_input) {
httpd.stop();
BMUSBCapture::stop_bm_thread();
- for (unsigned card_index = 0; card_index < num_cards + num_video_inputs + num_html_inputs; ++card_index) {
- cards[card_index].capture->stop_dequeue_thread();
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
+ if (cards[card_index].capture != nullptr) { // Active.
+ cards[card_index].capture->stop_dequeue_thread();
+ }
if (cards[card_index].output) {
cards[card_index].output->end_output();
cards[card_index].output.reset();
void Mixer::configure_card(unsigned card_index, CaptureInterface *capture, CardType card_type, DeckLinkOutput *output, bool is_srt_card)
{
- printf("Configuring card %d...\n", card_index);
+ bool is_active = capture != nullptr;
+ if (is_active) {
+ printf("Configuring card %d...\n", card_index);
+ } else {
+ assert(card_type == CardType::FAKE_CAPTURE);
+ }
CaptureCard *card = &cards[card_index];
if (card->capture != nullptr) {
+ card_mutex.unlock(); // The dequeue thread could be waiting for bm_frame().
card->capture->stop_dequeue_thread();
+ card_mutex.lock();
}
card->capture.reset(capture);
card->is_fake_capture = (card_type == CardType::FAKE_CAPTURE);
pixel_format = PixelFormat_8BitYCbCr;
}
- card->capture->set_frame_callback(bind(&Mixer::bm_frame, this, card_index, _1, _2, _3, _4, _5, _6, _7));
- if (card->frame_allocator == nullptr) {
- card->frame_allocator.reset(new PBOFrameAllocator(pixel_format, 8 << 20, global_flags.width, global_flags.height, card_index, mjpeg_encoder.get())); // 8 MB.
- } else {
- // The format could have changed, but we cannot reset the allocator
- // and create a new one from scratch, since there may be allocated
- // frames from it that expect to call release_frame() on it.
- // Instead, ask the allocator to create new frames for us and discard
- // any old ones as they come back. This takes the mutex while
- // allocating, but nothing should really be sending frames in there
- // right now anyway (start_bm_capture() has not been called yet).
- card->frame_allocator->reconfigure(pixel_format, 8 << 20, global_flags.width, global_flags.height, card_index, mjpeg_encoder.get());
- }
- card->capture->set_video_frame_allocator(card->frame_allocator.get());
- if (card->surface == nullptr) {
- card->surface = create_surface_with_same_format(mixer_surface);
- }
- while (!card->new_frames.empty()) card->new_frames.pop_front();
- card->last_timecode = -1;
- card->capture->set_pixel_format(pixel_format);
- card->capture->configure_card();
-
- // NOTE: start_bm_capture() happens in thread_func().
+ if (is_active) {
+ card->capture->set_frame_callback(bind(&Mixer::bm_frame, this, card_index, _1, _2, _3, _4, _5, _6, _7));
+ if (card->frame_allocator == nullptr) {
+ card->frame_allocator.reset(new PBOFrameAllocator(pixel_format, 8 << 20, global_flags.width, global_flags.height, card_index, mjpeg_encoder.get())); // 8 MB.
+ } else {
+ // The format could have changed, but we cannot reset the allocator
+ // and create a new one from scratch, since there may be allocated
+ // frames from it that expect to call release_frame() on it.
+ // Instead, ask the allocator to create new frames for us and discard
+ // any old ones as they come back. This takes the mutex while
+ // allocating, but nothing should really be sending frames in there
+ // right now anyway (start_bm_capture() has not been called yet).
+ card->frame_allocator->reconfigure(pixel_format, 8 << 20, global_flags.width, global_flags.height, card_index, mjpeg_encoder.get());
+ }
+ card->capture->set_video_frame_allocator(card->frame_allocator.get());
+ if (card->surface == nullptr) {
+ card->surface = create_surface_with_same_format(mixer_surface);
+ }
+ while (!card->new_frames.empty()) card->new_frames.pop_front();
+ card->last_timecode = -1;
+ card->capture->set_pixel_format(pixel_format);
+ card->capture->configure_card();
+
+ // NOTE: start_bm_capture() happens in thread_func().
+ }
if (is_srt_card) {
assert(card_type == CardType::FFMPEG_INPUT);
}
- DeviceSpec device;
- if (card_type == CardType::FFMPEG_INPUT && !is_srt_card) {
- device = DeviceSpec{InputSourceType::FFMPEG_VIDEO_INPUT, card_index - num_cards};
+ DeviceSpec device{InputSourceType::CAPTURE_CARD, card_index};
+ unsigned num_channels = card_type == CardType::LIVE_CARD ? 8 : 2;
+ if (is_active) {
+ audio_mixer->set_device_parameters(device, card->capture->get_description(), card_type, num_channels, /*active=*/true);
} else {
- device = DeviceSpec{InputSourceType::CAPTURE_CARD, card_index};
+ // Note: Keeps the previous name, if any.
+ char name[32];
+ snprintf(name, sizeof(name), "Fake card %u", card_index + 1);
+ audio_mixer->set_device_parameters(device, name, card_type, num_channels, /*active=*/false);
}
audio_mixer->reset_resampler(device);
- audio_mixer->set_display_name(device, card->capture->get_description());
audio_mixer->trigger_state_changed_callback();
// Unregister old metrics, if any.
global_metrics.remove_if_exists("srt_receiver_delivery_delay_seconds", labels);
}
- // Register metrics.
- vector<pair<string, string>> labels;
- char card_name[64];
- snprintf(card_name, sizeof(card_name), "%d", card_index);
- labels.emplace_back("card", card_name);
+ if (is_active) {
+ // Register metrics.
+ vector<pair<string, string>> labels;
+ char card_name[64];
+ snprintf(card_name, sizeof(card_name), "%d", card_index);
+ labels.emplace_back("card", card_name);
- switch (card_type) {
- case CardType::LIVE_CARD:
- labels.emplace_back("cardtype", "live");
- break;
- case CardType::FAKE_CAPTURE:
- labels.emplace_back("cardtype", "fake");
- break;
- case CardType::FFMPEG_INPUT:
- if (is_srt_card) {
- labels.emplace_back("cardtype", "srt");
- } else {
- labels.emplace_back("cardtype", "ffmpeg");
+ switch (card_type) {
+ case CardType::LIVE_CARD:
+ labels.emplace_back("cardtype", "live");
+ break;
+ case CardType::FAKE_CAPTURE:
+ labels.emplace_back("cardtype", "fake");
+ break;
+ case CardType::FFMPEG_INPUT:
+ if (is_srt_card) {
+ labels.emplace_back("cardtype", "srt");
+ } else {
+ labels.emplace_back("cardtype", "ffmpeg");
+ }
+ break;
+ case CardType::CEF_INPUT:
+ labels.emplace_back("cardtype", "cef");
+ break;
+ default:
+ assert(false);
}
- break;
- case CardType::CEF_INPUT:
- labels.emplace_back("cardtype", "cef");
- break;
- default:
- assert(false);
- }
- card->jitter_history.register_metrics(labels);
- card->queue_length_policy.register_metrics(labels);
- global_metrics.add("input_received_frames", labels, &card->metric_input_received_frames);
- global_metrics.add("input_dropped_frames_jitter", labels, &card->metric_input_dropped_frames_jitter);
- global_metrics.add("input_dropped_frames_error", labels, &card->metric_input_dropped_frames_error);
- global_metrics.add("input_dropped_frames_resets", labels, &card->metric_input_resets);
- global_metrics.add("input_queue_length_frames", labels, &card->metric_input_queue_length_frames, Metrics::TYPE_GAUGE);
- global_metrics.add("input_queue_duped_frames", labels, &card->metric_input_duped_frames);
-
- global_metrics.add("input_has_signal_bool", labels, &card->metric_input_has_signal_bool, Metrics::TYPE_GAUGE);
- global_metrics.add("input_is_connected_bool", labels, &card->metric_input_is_connected_bool, Metrics::TYPE_GAUGE);
- global_metrics.add("input_interlaced_bool", labels, &card->metric_input_interlaced_bool, Metrics::TYPE_GAUGE);
- global_metrics.add("input_width_pixels", labels, &card->metric_input_width_pixels, Metrics::TYPE_GAUGE);
- global_metrics.add("input_height_pixels", labels, &card->metric_input_height_pixels, Metrics::TYPE_GAUGE);
- global_metrics.add("input_frame_rate_nom", labels, &card->metric_input_frame_rate_nom, Metrics::TYPE_GAUGE);
- global_metrics.add("input_frame_rate_den", labels, &card->metric_input_frame_rate_den, Metrics::TYPE_GAUGE);
- global_metrics.add("input_sample_rate_hz", labels, &card->metric_input_sample_rate_hz, Metrics::TYPE_GAUGE);
-
- if (is_srt_card) {
- // Global measurements (counters).
- global_metrics.add("srt_uptime_seconds", labels, &card->metric_srt_uptime_seconds);
- global_metrics.add("srt_send_duration_seconds", labels, &card->metric_srt_send_duration_seconds);
- global_metrics.add("srt_sent_bytes", labels, &card->metric_srt_sent_bytes);
- global_metrics.add("srt_received_bytes", labels, &card->metric_srt_received_bytes);
-
- vector<pair<string, string>> packet_labels = labels;
- packet_labels.emplace_back("type", "normal");
- global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_normal);
- global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_normal);
-
- packet_labels.back().second = "lost";
- global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_lost);
- global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_lost);
-
- packet_labels.back().second = "retransmitted";
- global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_retransmitted);
- global_metrics.add("srt_sent_bytes", packet_labels, &card->metric_srt_sent_bytes_retransmitted);
-
- packet_labels.back().second = "ack";
- global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_ack);
- global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_ack);
+ card->jitter_history.register_metrics(labels);
+ card->queue_length_policy.register_metrics(labels);
+ global_metrics.add("input_received_frames", labels, &card->metric_input_received_frames);
+ global_metrics.add("input_dropped_frames_jitter", labels, &card->metric_input_dropped_frames_jitter);
+ global_metrics.add("input_dropped_frames_error", labels, &card->metric_input_dropped_frames_error);
+ global_metrics.add("input_dropped_frames_resets", labels, &card->metric_input_resets);
+ global_metrics.add("input_queue_length_frames", labels, &card->metric_input_queue_length_frames, Metrics::TYPE_GAUGE);
+ global_metrics.add("input_queue_duped_frames", labels, &card->metric_input_duped_frames);
+
+ global_metrics.add("input_has_signal_bool", labels, &card->metric_input_has_signal_bool, Metrics::TYPE_GAUGE);
+ global_metrics.add("input_is_connected_bool", labels, &card->metric_input_is_connected_bool, Metrics::TYPE_GAUGE);
+ global_metrics.add("input_interlaced_bool", labels, &card->metric_input_interlaced_bool, Metrics::TYPE_GAUGE);
+ global_metrics.add("input_width_pixels", labels, &card->metric_input_width_pixels, Metrics::TYPE_GAUGE);
+ global_metrics.add("input_height_pixels", labels, &card->metric_input_height_pixels, Metrics::TYPE_GAUGE);
+ global_metrics.add("input_frame_rate_nom", labels, &card->metric_input_frame_rate_nom, Metrics::TYPE_GAUGE);
+ global_metrics.add("input_frame_rate_den", labels, &card->metric_input_frame_rate_den, Metrics::TYPE_GAUGE);
+ global_metrics.add("input_sample_rate_hz", labels, &card->metric_input_sample_rate_hz, Metrics::TYPE_GAUGE);
- packet_labels.back().second = "nak";
- global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_nak);
- global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_nak);
-
- packet_labels.back().second = "dropped";
- global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_dropped);
- global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_dropped);
- global_metrics.add("srt_sent_bytes", packet_labels, &card->metric_srt_sent_bytes_dropped);
- global_metrics.add("srt_received_bytes", packet_labels, &card->metric_srt_received_bytes_dropped);
-
- packet_labels.back().second = "undecryptable";
- global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_undecryptable);
- global_metrics.add("srt_received_bytes", packet_labels, &card->metric_srt_received_bytes_undecryptable);
-
- global_metrics.add("srt_filter_sent_extra_packets", labels, &card->metric_srt_filter_sent_packets);
- global_metrics.add("srt_filter_received_extra_packets", labels, &card->metric_srt_filter_received_extra_packets);
- global_metrics.add("srt_filter_received_rebuilt_packets", labels, &card->metric_srt_filter_received_rebuilt_packets);
- global_metrics.add("srt_filter_received_lost_packets", labels, &card->metric_srt_filter_received_lost_packets);
+ if (is_srt_card) {
+ // Global measurements (counters).
+ global_metrics.add("srt_uptime_seconds", labels, &card->metric_srt_uptime_seconds);
+ global_metrics.add("srt_send_duration_seconds", labels, &card->metric_srt_send_duration_seconds);
+ global_metrics.add("srt_sent_bytes", labels, &card->metric_srt_sent_bytes);
+ global_metrics.add("srt_received_bytes", labels, &card->metric_srt_received_bytes);
+
+ vector<pair<string, string>> packet_labels = labels;
+ packet_labels.emplace_back("type", "normal");
+ global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_normal);
+ global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_normal);
+
+ packet_labels.back().second = "lost";
+ global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_lost);
+ global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_lost);
+
+ packet_labels.back().second = "retransmitted";
+ global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_retransmitted);
+ global_metrics.add("srt_sent_bytes", packet_labels, &card->metric_srt_sent_bytes_retransmitted);
+
+ packet_labels.back().second = "ack";
+ global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_ack);
+ global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_ack);
+
+ packet_labels.back().second = "nak";
+ global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_nak);
+ global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_nak);
+
+ packet_labels.back().second = "dropped";
+ global_metrics.add("srt_sent_packets", packet_labels, &card->metric_srt_sent_packets_dropped);
+ global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_dropped);
+ global_metrics.add("srt_sent_bytes", packet_labels, &card->metric_srt_sent_bytes_dropped);
+ global_metrics.add("srt_received_bytes", packet_labels, &card->metric_srt_received_bytes_dropped);
+
+ packet_labels.back().second = "undecryptable";
+ global_metrics.add("srt_received_packets", packet_labels, &card->metric_srt_received_packets_undecryptable);
+ global_metrics.add("srt_received_bytes", packet_labels, &card->metric_srt_received_bytes_undecryptable);
+
+ global_metrics.add("srt_filter_sent_extra_packets", labels, &card->metric_srt_filter_sent_packets);
+ global_metrics.add("srt_filter_received_extra_packets", labels, &card->metric_srt_filter_received_extra_packets);
+ global_metrics.add("srt_filter_received_rebuilt_packets", labels, &card->metric_srt_filter_received_rebuilt_packets);
+ global_metrics.add("srt_filter_received_lost_packets", labels, &card->metric_srt_filter_received_lost_packets);
+
+ // Instant measurements (gauges).
+ global_metrics.add("srt_packet_sending_period_seconds", labels, &card->metric_srt_packet_sending_period_seconds, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_flow_window_packets", labels, &card->metric_srt_flow_window_packets, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_congestion_window_packets", labels, &card->metric_srt_congestion_window_packets, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_flight_size_packets", labels, &card->metric_srt_flight_size_packets, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_rtt_seconds", labels, &card->metric_srt_rtt_seconds, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_estimated_bandwidth_bits_per_second", labels, &card->metric_srt_estimated_bandwidth_bits_per_second, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_bandwidth_ceiling_bits_per_second", labels, &card->metric_srt_bandwidth_ceiling_bits_per_second, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_send_buffer_available_bytes", labels, &card->metric_srt_send_buffer_available_bytes, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_receive_buffer_available_bytes", labels, &card->metric_srt_receive_buffer_available_bytes, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_mss_bytes", labels, &card->metric_srt_mss_bytes, Metrics::TYPE_GAUGE);
+
+ global_metrics.add("srt_sender_unacked_packets", labels, &card->metric_srt_sender_unacked_packets, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_sender_unacked_bytes", labels, &card->metric_srt_sender_unacked_bytes, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_sender_unacked_timespan_seconds", labels, &card->metric_srt_sender_unacked_timespan_seconds, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_sender_delivery_delay_seconds", labels, &card->metric_srt_sender_delivery_delay_seconds, Metrics::TYPE_GAUGE);
+
+ global_metrics.add("srt_receiver_unacked_packets", labels, &card->metric_srt_receiver_unacked_packets, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_receiver_unacked_bytes", labels, &card->metric_srt_receiver_unacked_bytes, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_receiver_unacked_timespan_seconds", labels, &card->metric_srt_receiver_unacked_timespan_seconds, Metrics::TYPE_GAUGE);
+ global_metrics.add("srt_receiver_delivery_delay_seconds", labels, &card->metric_srt_receiver_delivery_delay_seconds, Metrics::TYPE_GAUGE);
+ }
- // Instant measurements (gauges).
- global_metrics.add("srt_packet_sending_period_seconds", labels, &card->metric_srt_packet_sending_period_seconds, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_flow_window_packets", labels, &card->metric_srt_flow_window_packets, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_congestion_window_packets", labels, &card->metric_srt_congestion_window_packets, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_flight_size_packets", labels, &card->metric_srt_flight_size_packets, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_rtt_seconds", labels, &card->metric_srt_rtt_seconds, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_estimated_bandwidth_bits_per_second", labels, &card->metric_srt_estimated_bandwidth_bits_per_second, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_bandwidth_ceiling_bits_per_second", labels, &card->metric_srt_bandwidth_ceiling_bits_per_second, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_send_buffer_available_bytes", labels, &card->metric_srt_send_buffer_available_bytes, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_receive_buffer_available_bytes", labels, &card->metric_srt_receive_buffer_available_bytes, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_mss_bytes", labels, &card->metric_srt_mss_bytes, Metrics::TYPE_GAUGE);
-
- global_metrics.add("srt_sender_unacked_packets", labels, &card->metric_srt_sender_unacked_packets, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_sender_unacked_bytes", labels, &card->metric_srt_sender_unacked_bytes, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_sender_unacked_timespan_seconds", labels, &card->metric_srt_sender_unacked_timespan_seconds, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_sender_delivery_delay_seconds", labels, &card->metric_srt_sender_delivery_delay_seconds, Metrics::TYPE_GAUGE);
-
- global_metrics.add("srt_receiver_unacked_packets", labels, &card->metric_srt_receiver_unacked_packets, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_receiver_unacked_bytes", labels, &card->metric_srt_receiver_unacked_bytes, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_receiver_unacked_timespan_seconds", labels, &card->metric_srt_receiver_unacked_timespan_seconds, Metrics::TYPE_GAUGE);
- global_metrics.add("srt_receiver_delivery_delay_seconds", labels, &card->metric_srt_receiver_delivery_delay_seconds, Metrics::TYPE_GAUGE);
- }
-
- card->labels = labels;
+ card->labels = labels;
+ } else {
+ card->labels.clear();
+ }
}
void Mixer::set_output_card_internal(int card_index)
lock.lock();
card->parked_capture = move(card->capture);
CaptureInterface *fake_capture = new FakeCapture(global_flags.width, global_flags.height, FAKE_FPS, OUTPUT_FREQUENCY, card_index, global_flags.fake_cards_audio);
- configure_card(card_index, fake_capture, CardType::FAKE_CAPTURE, card->output.release());
- card->queue_length_policy.reset(card_index);
+ configure_card(card_index, fake_capture, CardType::FAKE_CAPTURE, card->output.release(), /*is_srt_card=*/false);
+ card->jitter_history.clear();
card->capture->start_bm_capture();
desired_output_video_mode = output_video_mode = card->output->pick_video_mode(desired_output_video_mode);
card->output->start_output(desired_output_video_mode, pts_int);
}
}
-DeviceSpec card_index_to_device(unsigned card_index, unsigned num_cards)
-{
- if (card_index >= num_cards) {
- return DeviceSpec{InputSourceType::FFMPEG_VIDEO_INPUT, card_index - num_cards};
- } else {
- return DeviceSpec{InputSourceType::CAPTURE_CARD, card_index};
- }
-}
-
} // namespace
void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
FrameAllocator::Frame video_frame, size_t video_offset, VideoFormat video_format,
FrameAllocator::Frame audio_frame, size_t audio_offset, AudioFormat audio_format)
{
- DeviceSpec device = card_index_to_device(card_index, num_cards);
+ DeviceSpec device{InputSourceType::CAPTURE_CARD, card_index};
CaptureCard *card = &cards[card_index];
++card->metric_input_received_frames;
size_t num_samples = (audio_frame.len > audio_offset) ? (audio_frame.len - audio_offset) / audio_format.num_channels / (audio_format.bits_per_sample / 8) : 0;
if (num_samples > OUTPUT_FREQUENCY / 10 && card->type != CardType::FFMPEG_INPUT) {
printf("%s: Dropping frame with implausible audio length (len=%d, offset=%d) [timecode=0x%04x video_len=%d video_offset=%d video_format=%x)\n",
- spec_to_string(device).c_str(), int(audio_frame.len), int(audio_offset),
+ description_for_card(card_index).c_str(), int(audio_frame.len), int(audio_offset),
timecode, int(video_frame.len), int(video_offset), video_format.id);
if (video_frame.owner) {
video_frame.owner->release_frame(video_frame);
if (dropped_frames > MAX_FPS * 2) {
fprintf(stderr, "%s lost more than two seconds (or time code jumping around; from 0x%04x to 0x%04x), resetting resampler\n",
- spec_to_string(device).c_str(), card->last_timecode, timecode);
+ description_for_card(card_index).c_str(), card->last_timecode, timecode);
audio_mixer->reset_resampler(device);
dropped_frames = 0;
++card->metric_input_resets;
} else if (dropped_frames > 0) {
// Insert silence as needed.
fprintf(stderr, "%s dropped %d frame(s) (before timecode 0x%04x), inserting silence.\n",
- spec_to_string(device).c_str(), dropped_frames, timecode);
+ description_for_card(card_index).c_str(), dropped_frames, timecode);
card->metric_input_dropped_frames_error += dropped_frames;
bool success;
}
#endif
- size_t cbcr_width, cbcr_height, cbcr_offset, y_offset;
+ size_t y_offset, cbcr_offset;
size_t expected_length = video_format.stride * (video_format.height + video_format.extra_lines_top + video_format.extra_lines_bottom);
if (userdata != nullptr && userdata->pixel_format == PixelFormat_8BitYCbCrPlanar) {
// The calculation above is wrong for planar Y'CbCr, so just override it.
expected_length = video_frame.len;
userdata->ycbcr_format = (static_cast<FFmpegCapture *>(card->capture.get()))->get_current_frame_ycbcr_format();
- cbcr_width = video_format.width / userdata->ycbcr_format.chroma_subsampling_x;
- cbcr_height = video_format.height / userdata->ycbcr_format.chroma_subsampling_y;
- cbcr_offset = video_format.width * video_format.height;
y_offset = 0;
+ cbcr_offset = video_format.width * video_format.height;
} else {
// All the other Y'CbCr formats are 4:2:2.
- cbcr_width = video_format.width / 2;
- cbcr_height = video_format.height;
- cbcr_offset = video_offset / 2;
y_offset = video_frame.size / 2 + video_offset / 2;
+ cbcr_offset = video_offset / 2;
}
if (video_frame.len - video_offset == 0 ||
video_frame.len - video_offset != expected_length) {
if (video_frame.len != 0) {
printf("%s: Dropping video frame with wrong length (%zu; expected %zu)\n",
- spec_to_string(device).c_str(), video_frame.len - video_offset, expected_length);
+ description_for_card(card_index).c_str(), video_frame.len - video_offset, expected_length);
}
if (video_frame.owner) {
video_frame.owner->release_frame(video_frame);
unsigned num_fields = video_format.interlaced ? 2 : 1;
steady_clock::time_point frame_upload_start;
- bool interlaced_stride = false;
if (video_format.interlaced) {
// Send the two fields along as separate frames; the other side will need to add
// a deinterlacer to actually get this right.
assert(video_format.height % 2 == 0);
video_format.height /= 2;
- cbcr_height /= 2;
assert(frame_length % 2 == 0);
frame_length /= 2;
num_fields = 2;
- if (video_format.second_field_start == 1) {
- interlaced_stride = true;
- }
frame_upload_start = steady_clock::now();
}
assert(userdata != nullptr);
userdata->last_frame_rate_den = video_format.frame_rate_den;
RefCountedFrame frame(video_frame);
- // Upload the textures.
+ // Send the frames on to the main thread, which will upload and process htem.
+ // It is entirely possible to upload them in the same thread (and it might even be
+ // faster, depending on the GPU and driver), but it appears to be trickling
+ // driver bugs very easily.
+ //
+ // Note that this means we must hold on to the actual frame data in <userdata>
+ // until the upload is done, but we hold on to <frame> much longer than that
+ // (in fact, all the way until we no longer use the texture in rendering).
for (unsigned field = 0; field < num_fields; ++field) {
- // Put the actual texture upload in a lambda that is executed in the main thread.
- // It is entirely possible to do this in the same thread (and it might even be
- // faster, depending on the GPU and driver), but it appears to be trickling
- // driver bugs very easily.
- //
- // Note that this means we must hold on to the actual frame data in <userdata>
- // until the upload command is run, but we hold on to <frame> much longer than that
- // (in fact, all the way until we no longer use the texture in rendering).
- auto upload_func = [this, field, video_format, y_offset, video_offset, cbcr_offset, cbcr_width, cbcr_height, interlaced_stride, userdata]() {
- unsigned field_start_line;
- if (field == 1) {
- field_start_line = video_format.second_field_start;
- } else {
- field_start_line = video_format.extra_lines_top;
- }
-
- // For anything not FRAME_FORMAT_YCBCR_10BIT, v210_width will be nonsensical but not used.
- size_t v210_width = video_format.stride / sizeof(uint32_t);
- ensure_texture_resolution(userdata, field, video_format.width, video_format.height, cbcr_width, cbcr_height, v210_width);
-
- glBindBuffer(GL_PIXEL_UNPACK_BUFFER, userdata->pbo);
- check_error();
-
- switch (userdata->pixel_format) {
- case PixelFormat_10BitYCbCr: {
- size_t field_start = video_offset + video_format.stride * field_start_line;
- upload_texture(userdata->tex_v210[field], v210_width, video_format.height, video_format.stride, interlaced_stride, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, field_start);
- v210_converter->convert(userdata->tex_v210[field], userdata->tex_444[field], video_format.width, video_format.height);
- break;
- }
- case PixelFormat_8BitYCbCr: {
- size_t field_y_start = y_offset + video_format.width * field_start_line;
- size_t field_cbcr_start = cbcr_offset + cbcr_width * field_start_line * sizeof(uint16_t);
-
- // Make up our own strides, since we are interleaving.
- upload_texture(userdata->tex_y[field], video_format.width, video_format.height, video_format.width, interlaced_stride, GL_RED, GL_UNSIGNED_BYTE, field_y_start);
- upload_texture(userdata->tex_cbcr[field], cbcr_width, cbcr_height, cbcr_width * sizeof(uint16_t), interlaced_stride, GL_RG, GL_UNSIGNED_BYTE, field_cbcr_start);
- break;
- }
- case PixelFormat_8BitYCbCrPlanar: {
- assert(field_start_line == 0); // We don't really support interlaced here.
- size_t field_y_start = y_offset;
- size_t field_cb_start = cbcr_offset;
- size_t field_cr_start = cbcr_offset + cbcr_width * cbcr_height;
-
- // Make up our own strides, since we are interleaving.
- upload_texture(userdata->tex_y[field], video_format.width, video_format.height, video_format.width, interlaced_stride, GL_RED, GL_UNSIGNED_BYTE, field_y_start);
- upload_texture(userdata->tex_cb[field], cbcr_width, cbcr_height, cbcr_width, interlaced_stride, GL_RED, GL_UNSIGNED_BYTE, field_cb_start);
- upload_texture(userdata->tex_cr[field], cbcr_width, cbcr_height, cbcr_width, interlaced_stride, GL_RED, GL_UNSIGNED_BYTE, field_cr_start);
- break;
- }
- case PixelFormat_8BitBGRA: {
- size_t field_start = video_offset + video_format.stride * field_start_line;
- upload_texture(userdata->tex_rgba[field], video_format.width, video_format.height, video_format.stride, interlaced_stride, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, field_start);
- // These could be asked to deliver mipmaps at any time.
- glBindTexture(GL_TEXTURE_2D, userdata->tex_rgba[field]);
- check_error();
- glGenerateMipmap(GL_TEXTURE_2D);
- check_error();
- glBindTexture(GL_TEXTURE_2D, 0);
- check_error();
- break;
- }
- default:
- assert(false);
- }
-
- glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
- check_error();
- };
-
if (field == 1) {
// Don't upload the second field as fast as we can; wait until
// the field time has approximately passed. (Otherwise, we could
new_frame.length = frame_length;
new_frame.field = field;
new_frame.interlaced = video_format.interlaced;
- new_frame.upload_func = upload_func;
new_frame.dropped_frames = dropped_frames;
new_frame.received_timestamp = video_frame.received_timestamp; // Ignore the audio timestamp.
new_frame.video_format = video_format;
+ new_frame.video_offset = video_offset;
new_frame.y_offset = y_offset;
new_frame.cbcr_offset = cbcr_offset;
+ new_frame.texture_uploaded = false;
if (card->type == CardType::FFMPEG_INPUT) {
FFmpegCapture *ffmpeg_capture = static_cast<FFmpegCapture *>(card->capture.get());
new_frame.neutral_color = ffmpeg_capture->get_last_neutral_color();
}
}
+void Mixer::upload_texture_for_frame(
+ int field, bmusb::VideoFormat video_format,
+ size_t y_offset, size_t cbcr_offset, size_t video_offset, PBOFrameAllocator::Userdata *userdata)
+{
+ size_t cbcr_width, cbcr_height;
+ if (userdata != nullptr && userdata->pixel_format == PixelFormat_8BitYCbCrPlanar) {
+ cbcr_width = video_format.width / userdata->ycbcr_format.chroma_subsampling_x;
+ cbcr_height = video_format.height / userdata->ycbcr_format.chroma_subsampling_y;
+ } else {
+ // All the other Y'CbCr formats are 4:2:2.
+ cbcr_width = video_format.width / 2;
+ cbcr_height = video_format.height;
+ }
+
+ bool interlaced_stride = video_format.interlaced && (video_format.second_field_start == 1);
+ if (video_format.interlaced) {
+ cbcr_height /= 2;
+ }
+
+ unsigned field_start_line;
+ if (field == 1) {
+ field_start_line = video_format.second_field_start;
+ } else {
+ field_start_line = video_format.extra_lines_top;
+ }
+
+ // For anything not FRAME_FORMAT_YCBCR_10BIT, v210_width will be nonsensical but not used.
+ size_t v210_width = video_format.stride / sizeof(uint32_t);
+ ensure_texture_resolution(userdata, field, video_format.width, video_format.height, cbcr_width, cbcr_height, v210_width);
+
+ glBindBuffer(GL_PIXEL_UNPACK_BUFFER, userdata->pbo);
+ check_error();
+
+ switch (userdata->pixel_format) {
+ case PixelFormat_10BitYCbCr: {
+ size_t field_start = video_offset + video_format.stride * field_start_line;
+ upload_texture(userdata->tex_v210[field], v210_width, video_format.height, video_format.stride, interlaced_stride, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, field_start);
+ v210_converter->convert(userdata->tex_v210[field], userdata->tex_444[field], video_format.width, video_format.height);
+ break;
+ }
+ case PixelFormat_8BitYCbCr: {
+ size_t field_y_start = y_offset + video_format.width * field_start_line;
+ size_t field_cbcr_start = cbcr_offset + cbcr_width * field_start_line * sizeof(uint16_t);
+
+ // Make up our own strides, since we are interleaving.
+ upload_texture(userdata->tex_y[field], video_format.width, video_format.height, video_format.width, interlaced_stride, GL_RED, GL_UNSIGNED_BYTE, field_y_start);
+ upload_texture(userdata->tex_cbcr[field], cbcr_width, cbcr_height, cbcr_width * sizeof(uint16_t), interlaced_stride, GL_RG, GL_UNSIGNED_BYTE, field_cbcr_start);
+ break;
+ }
+ case PixelFormat_8BitYCbCrPlanar: {
+ assert(field_start_line == 0); // We don't really support interlaced here.
+ size_t field_y_start = y_offset;
+ size_t field_cb_start = cbcr_offset;
+ size_t field_cr_start = cbcr_offset + cbcr_width * cbcr_height;
+
+ // Make up our own strides, since we are interleaving.
+ upload_texture(userdata->tex_y[field], video_format.width, video_format.height, video_format.width, interlaced_stride, GL_RED, GL_UNSIGNED_BYTE, field_y_start);
+ upload_texture(userdata->tex_cb[field], cbcr_width, cbcr_height, cbcr_width, interlaced_stride, GL_RED, GL_UNSIGNED_BYTE, field_cb_start);
+ upload_texture(userdata->tex_cr[field], cbcr_width, cbcr_height, cbcr_width, interlaced_stride, GL_RED, GL_UNSIGNED_BYTE, field_cr_start);
+ break;
+ }
+ case PixelFormat_8BitBGRA: {
+ size_t field_start = video_offset + video_format.stride * field_start_line;
+ upload_texture(userdata->tex_rgba[field], video_format.width, video_format.height, video_format.stride, interlaced_stride, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, field_start);
+ // These could be asked to deliver mipmaps at any time.
+ glBindTexture(GL_TEXTURE_2D, userdata->tex_rgba[field]);
+ check_error();
+ glGenerateMipmap(GL_TEXTURE_2D);
+ check_error();
+ glBindTexture(GL_TEXTURE_2D, 0);
+ check_error();
+ break;
+ }
+ default:
+ assert(false);
+ }
+
+ glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
+ check_error();
+}
+
void Mixer::bm_hotplug_add(libusb_device *dev)
{
lock_guard<mutex> lock(hotplug_mutex);
// Start the actual capture. (We don't want to do it before we're actually ready
// to process output frames.)
- for (unsigned card_index = 0; card_index < num_cards + num_video_inputs + num_html_inputs; ++card_index) {
- if (int(card_index) != output_card_index) {
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
+ if (int(card_index) != output_card_index && cards[card_index].capture != nullptr) {
cards[card_index].capture->start_bm_capture();
}
}
output->start_output(desired_output_video_mode, pts_int);
}
+ {
+ lock_guard<mutex> lock(card_mutex);
+ handle_hotplugged_cards();
+ }
+
CaptureCard::NewFrame new_frames[MAX_VIDEO_CARDS];
bool has_new_frame[MAX_VIDEO_CARDS] = { false };
} else {
master_card_is_output = false;
master_card_index = theme->map_signal_to_card(master_clock_channel);
- assert(master_card_index < num_cards + num_video_inputs);
+ assert(master_card_index < MAX_VIDEO_CARDS);
}
- handle_hotplugged_cards();
-
vector<int32_t> raw_audio[MAX_VIDEO_CARDS]; // For MJPEG encoding.
OutputFrameInfo output_frame_info = get_one_frame_from_each_card(master_card_index, master_card_is_output, new_frames, has_new_frame, raw_audio);
schedule_audio_resampling_tasks(output_frame_info.dropped_frames, output_frame_info.num_samples, output_frame_info.frame_duration, output_frame_info.is_preroll, output_frame_info.frame_timestamp);
stats_dropped_frames += output_frame_info.dropped_frames;
- for (unsigned card_index = 0; card_index < num_cards + num_video_inputs + num_html_inputs; ++card_index) {
- DeviceSpec device = card_index_to_device(card_index, num_cards);
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
if (card_index == master_card_index || !has_new_frame[card_index]) {
continue;
}
}
if (new_frames[card_index].dropped_frames > 0) {
printf("%s dropped %d frames before this\n",
- spec_to_string(device).c_str(), int(new_frames[card_index].dropped_frames));
+ description_for_card(card_index).c_str(), int(new_frames[card_index].dropped_frames));
}
}
// If the first card is reporting a corrupted or otherwise dropped frame,
// just increase the pts (skipping over this frame) and don't try to compute anything new.
- if (!master_card_is_output && new_frames[master_card_index].frame->len == 0) {
+ if (!master_card_is_output &&
+ new_frames[master_card_index].frame != nullptr && // Timeout.
+ new_frames[master_card_index].frame->len == 0) {
++stats_dropped_frames;
pts_int += new_frames[master_card_index].length;
continue;
}
- for (unsigned card_index = 0; card_index < num_cards + num_video_inputs + num_html_inputs; ++card_index) {
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
if (!has_new_frame[card_index] || new_frames[card_index].frame->len == 0)
continue;
check_error();
// The new texture might need uploading before use.
- if (new_frame->upload_func) {
- new_frame->upload_func();
- new_frame->upload_func = nullptr;
+ if (!new_frame->texture_uploaded) {
+ upload_texture_for_frame(new_frame->field, new_frame->video_format, new_frame->y_offset, new_frame->cbcr_offset,
+ new_frame->video_offset, (PBOFrameAllocator::Userdata *)new_frame->frame->userdata);
+ new_frame->texture_uploaded = true;
}
// Only set the white balance if it actually changed. This means that the user
Mixer::OutputFrameInfo Mixer::get_one_frame_from_each_card(unsigned master_card_index, bool master_card_is_output, CaptureCard::NewFrame new_frames[MAX_VIDEO_CARDS], bool has_new_frame[MAX_VIDEO_CARDS], vector<int32_t> raw_audio[MAX_VIDEO_CARDS])
{
OutputFrameInfo output_frame_info;
+ constexpr steady_clock::duration master_card_timeout = milliseconds(200);
start:
unique_lock<mutex> lock(card_mutex, defer_lock);
+ bool timed_out = false;
if (master_card_is_output) {
// Clocked to the output, so wait for it to be ready for the next frame.
cards[master_card_index].output->wait_for_frame(pts_int, &output_frame_info.dropped_frames, &output_frame_info.frame_duration, &output_frame_info.is_preroll, &output_frame_info.frame_timestamp);
lock.lock();
} else {
// Wait for the master card to have a new frame.
- // TODO: Add a timeout.
output_frame_info.is_preroll = false;
lock.lock();
- cards[master_card_index].new_frames_changed.wait(lock, [this, master_card_index]{ return !cards[master_card_index].new_frames.empty() || cards[master_card_index].capture->get_disconnected(); });
+ timed_out = !cards[master_card_index].new_frames_changed.wait_for(lock,
+ master_card_timeout,
+ [this, master_card_index] {
+ return !cards[master_card_index].new_frames.empty() ||
+ cards[master_card_index].capture == nullptr ||
+ cards[master_card_index].capture->get_disconnected();
+ });
+ if (timed_out) {
+ fprintf(stderr, "WARNING: Master card (%s) did not deliver a frame for %u ms, creating a fake one.\n",
+ description_for_card(master_card_index).c_str(),
+ unsigned(duration_cast<milliseconds>(master_card_timeout).count()));
+ }
}
- if (master_card_is_output) {
+ if (timed_out) {
+ // The master card stalled for 200 ms (possible when it's e.g.
+ // an SRT card). Send a frame no matter what; this also makes sure
+ // any other cards get to empty their queues, and in general,
+ // that we make _some_ sort of forward progress.
+ handle_hotplugged_cards();
+ } else if (master_card_is_output) {
handle_hotplugged_cards();
} else if (cards[master_card_index].new_frames.empty()) {
// We were woken up, but not due to a new frame. Deal with it
// and then restart.
- assert(cards[master_card_index].capture->get_disconnected());
+ assert(cards[master_card_index].capture == nullptr ||
+ cards[master_card_index].capture->get_disconnected());
handle_hotplugged_cards();
lock.unlock();
goto start;
}
- for (unsigned card_index = 0; card_index < num_cards + num_video_inputs + num_html_inputs; ++card_index) {
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
CaptureCard *card = &cards[card_index];
if (card->new_frames.empty()) { // Starvation.
++card->metric_input_duped_frames;
raw_audio[card_index] = move(card->new_raw_audio);
}
- if (!master_card_is_output) {
+ if (timed_out) {
+ // Pretend the frame happened a while ago and was only processed now,
+ // so that we get the duration sort-of right. This isn't ideal.
+ output_frame_info.dropped_frames = 0; // Hard to define, really.
+ output_frame_info.frame_duration = lrint(TIMEBASE * duration<double>(master_card_timeout).count());
+ output_frame_info.frame_timestamp = steady_clock::now() - master_card_timeout;
+ } else if (!master_card_is_output) {
output_frame_info.frame_timestamp = new_frames[master_card_index].received_timestamp;
output_frame_info.dropped_frames = new_frames[master_card_index].dropped_frames;
output_frame_info.frame_duration = new_frames[master_card_index].length;
output_jitter_history.frame_arrived(output_frame_info.frame_timestamp, output_frame_info.frame_duration, output_frame_info.dropped_frames);
}
- for (unsigned card_index = 0; card_index < num_cards + num_video_inputs + num_html_inputs; ++card_index) {
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
CaptureCard *card = &cards[card_index];
if (has_new_frame[card_index] &&
!input_card_is_master_clock(card_index, master_card_index) &&
fractional_samples = num_samples_times_timebase % TIMEBASE;
assert(output_frame_info.num_samples >= 0);
+ if (timed_out) {
+ DeviceSpec device{InputSourceType::CAPTURE_CARD, master_card_index};
+ bool success;
+ do {
+ success = audio_mixer->add_silence(device, output_frame_info.num_samples, /*dropped_frames=*/0);
+ } while (!success);
+ }
+
return output_frame_info;
}
void Mixer::handle_hotplugged_cards()
{
// Check for cards that have been disconnected since last frame.
- for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
CaptureCard *card = &cards[card_index];
- if (card->capture->get_disconnected()) {
- fprintf(stderr, "Card %u went away, replacing with a fake card.\n", card_index);
- FakeCapture *capture = new FakeCapture(global_flags.width, global_flags.height, FAKE_FPS, OUTPUT_FREQUENCY, card_index, global_flags.fake_cards_audio);
- configure_card(card_index, capture, CardType::FAKE_CAPTURE, /*output=*/nullptr);
- card->queue_length_policy.reset(card_index);
- card->capture->start_bm_capture();
+ if (card->capture != nullptr && card->capture->get_disconnected()) {
+ bool is_active = card_index < unsigned(global_flags.min_num_cards) || cards[card_index].force_active;
+ if (is_active) {
+ fprintf(stderr, "Card %u went away, replacing with a fake card.\n", card_index);
+ FakeCapture *capture = new FakeCapture(global_flags.width, global_flags.height, FAKE_FPS, OUTPUT_FREQUENCY, card_index, global_flags.fake_cards_audio);
+ configure_card(card_index, capture, CardType::FAKE_CAPTURE, /*output=*/nullptr, /*is_srt_card=*/false);
+ card->jitter_history.clear();
+ card->capture->start_bm_capture();
+ } else {
+ // NOTE: The theme might end up forcing the card back at some later point
+ // (ie., force_active is false now, but might immediately be true again on
+ // e.g. the next frame). That should be rare, though, so we don't bother
+ // adjusting the message.
+ fprintf(stderr, "Card %u went away, removing. (To keep a fake card, increase --num-cards.)\n", card_index);
+ theme->remove_card(card_index);
+ configure_card(card_index, /*capture=*/nullptr, CardType::FAKE_CAPTURE, /*output=*/nullptr, /*is_srt_card=*/false);
+ card->jitter_history.clear();
+ }
+ }
+ }
+
+ // Count how many active cards we already have. Used below to check that we
+ // don't go past the max_cards limit set by the user. Note that (non-SRT) video
+ // and HTML “cards” don't count towards this limit.
+ int num_video_cards = 0;
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
+ CaptureCard *card = &cards[card_index];
+ if (card->type == CardType::LIVE_CARD || is_srt_card(card)) {
+ ++num_video_cards;
}
}
for (libusb_device *new_dev : hotplugged_cards_copy) {
// Look for a fake capture card where we can stick this in.
int free_card_index = -1;
- for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
if (cards[card_index].is_fake_capture) {
free_card_index = card_index;
break;
}
}
- if (free_card_index == -1) {
+ if (free_card_index == -1 || num_video_cards >= global_flags.max_num_cards) {
fprintf(stderr, "New card plugged in, but no free slots -- ignoring.\n");
libusb_unref_device(new_dev);
} else {
fprintf(stderr, "New card plugged in, choosing slot %d.\n", free_card_index);
CaptureCard *card = &cards[free_card_index];
BMUSBCapture *capture = new BMUSBCapture(free_card_index, new_dev);
- configure_card(free_card_index, capture, CardType::LIVE_CARD, /*output=*/nullptr);
- card->queue_length_policy.reset(free_card_index);
+ configure_card(free_card_index, capture, CardType::LIVE_CARD, /*output=*/nullptr, /*is_srt_card=*/false);
+ card->jitter_history.clear();
capture->set_card_disconnected_callback(bind(&Mixer::bm_hotplug_remove, this, free_card_index));
capture->start_bm_capture();
}
#ifdef HAVE_SRT
// Same, for SRT inputs.
- // TODO: On disconnect and reconnect, we might want to use the stream ID
for (SRTSOCKET sock : hotplugged_srt_cards_copy) {
char name[256];
int namelen = sizeof(name);
// same stream ID, if any exist -- and it multiple exist,
// take the one that disconnected the last.
int first_free_card_index = -1, last_matching_free_card_index = -1;
- for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
CaptureCard *card = &cards[card_index];
if (!card->is_fake_capture) {
continue;
const int free_card_index = (last_matching_free_card_index != -1)
? last_matching_free_card_index : first_free_card_index;
- if (free_card_index == -1) {
+ if (free_card_index == -1 || num_video_cards >= global_flags.max_num_cards) {
if (stream_id.empty()) {
stream_id = "no name";
}
CaptureCard *card = &cards[free_card_index];
FFmpegCapture *capture = new FFmpegCapture(sock, stream_id);
capture->set_card_index(free_card_index);
- configure_card(free_card_index, capture, CardType::FFMPEG_INPUT, /*output=*/nullptr, /*override_card_as_live=*/true);
+ configure_card(free_card_index, capture, CardType::FFMPEG_INPUT, /*output=*/nullptr, /*is_srt_card=*/true);
update_srt_stats(sock, card); // Initial zero stats.
card->last_srt_stream_id = stream_id;
- card->queue_length_policy.reset(free_card_index);
+ card->jitter_history.clear();
capture->set_card_disconnected_callback(bind(&Mixer::bm_hotplug_remove, this, free_card_index));
capture->start_bm_capture();
}
}
#endif
+
+ // Finally, newly forced-to-active fake capture cards.
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
+ CaptureCard *card = &cards[card_index];
+ if (card->capture == nullptr && card->force_active) {
+ FakeCapture *capture = new FakeCapture(global_flags.width, global_flags.height, FAKE_FPS, OUTPUT_FREQUENCY, card_index, global_flags.fake_cards_audio);
+ configure_card(card_index, capture, CardType::FAKE_CAPTURE, /*output=*/nullptr, /*is_srt_card=*/false);
+ card->jitter_history.clear();
+ card->capture->start_bm_capture();
+ }
+ }
}
void Mixer::schedule_audio_resampling_tasks(unsigned dropped_frames, int num_samples_per_frame, int length_per_frame, bool is_preroll, steady_clock::time_point frame_timestamp)
{
// Resample the audio as needed, including from previously dropped frames.
- assert(num_cards > 0);
for (unsigned frame_num = 0; frame_num < dropped_frames + 1; ++frame_num) {
const bool dropped_frame = (frame_num != dropped_frames);
{
// Update Y'CbCr settings for all cards.
{
lock_guard<mutex> lock(card_mutex);
- for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
+ for (unsigned card_index = 0; card_index < MAX_VIDEO_CARDS; ++card_index) {
YCbCrInterpretation *interpretation = &ycbcr_interpretation[card_index];
input_state.ycbcr_coefficients_auto[card_index] = interpretation->ycbcr_coefficients_auto;
input_state.ycbcr_coefficients[card_index] = interpretation->ycbcr_coefficients;
if (global_flags.srt_port >= 0) {
// There's seemingly no other reasonable way to wake up the thread
// (libsrt's epoll equivalent is busy-waiting).
- int sock = srt_socket(AF_INET6, 0, 0);
+ int sock = srt_create_socket();
if (sock != -1) {
sockaddr_in6 addr;
memset(&addr, 0, sizeof(addr));
void Mixer::start_mode_scanning(unsigned card_index)
{
- assert(card_index < num_cards);
+ assert(card_index < MAX_VIDEO_CARDS);
+ if (cards[card_index].capture != nullptr) {
+ // Inactive card. Should never happen.
+ return;
+ }
if (is_mode_scanning[card_index]) {
return;
}
string Mixer::get_ffmpeg_filename(unsigned card_index) const
{
- assert(card_index >= num_cards && card_index < num_cards + num_video_inputs);
+ assert(card_index < MAX_VIDEO_CARDS);
+ assert(cards[card_index].type == CardType::FFMPEG_INPUT);
return ((FFmpegCapture *)(cards[card_index].capture.get()))->get_filename();
}
void Mixer::set_ffmpeg_filename(unsigned card_index, const string &filename) {
- assert(card_index >= num_cards && card_index < num_cards + num_video_inputs);
+ assert(card_index < MAX_VIDEO_CARDS);
+ assert(cards[card_index].type == CardType::FFMPEG_INPUT);
((FFmpegCapture *)(cards[card_index].capture.get()))->change_filename(filename);
}
#ifdef HAVE_SRT
void Mixer::start_srt()
{
- SRTSOCKET sock = srt_socket(AF_INET6, 0, 0);
+ SRTSOCKET sock = srt_create_socket();
sockaddr_in6 addr;
memset(&addr, 0, sizeof(addr));
addr.sin6_family = AF_INET6;
}
break;
}
+ if (!global_flags.enable_srt) { // Runtime UI toggle.
+ // Perhaps not as good as never listening in the first place,
+ // but much simpler to turn on and off.
+ srt_close(clientsock);
+ continue;
+ }
lock_guard<mutex> lock(hotplug_mutex);
hotplugged_srt_cards.push_back(clientsock);
}
}
#endif
+string Mixer::description_for_card(unsigned card_index)
+{
+ CaptureCard *card = &cards[card_index];
+ if (card->capture == nullptr) {
+ // Should never be called for inactive cards, but OK.
+ char buf[256];
+ snprintf(buf, sizeof(buf), "Inactive capture card %u", card_index);
+ return buf;
+ }
+ if (card->type != CardType::FFMPEG_INPUT) {
+ char buf[256];
+ snprintf(buf, sizeof(buf), "Capture card %u (%s)", card_index, card->capture->get_description().c_str());
+ return buf;
+ }
+
+ // Number (non-SRT) FFmpeg inputs from zero, separately from the capture cards,
+ // since it's not too obvious for the user that they are “cards”.
+ unsigned ffmpeg_index = 0;
+ for (unsigned i = 0; i < card_index; ++i) {
+ CaptureCard *other_card = &cards[i];
+ if (other_card->type == CardType::FFMPEG_INPUT && !is_srt_card(other_card)) {
+ ++ffmpeg_index;
+ }
+ }
+ char buf[256];
+ snprintf(buf, sizeof(buf), "Video input %u (%s)", ffmpeg_index, card->capture->get_description().c_str());
+ return buf;
+}
+
+bool Mixer::is_srt_card(const Mixer::CaptureCard *card)
+{
+#ifdef HAVE_SRT
+ if (card->type == CardType::FFMPEG_INPUT) {
+ int srt_sock = static_cast<FFmpegCapture *>(card->capture.get())->get_srt_sock();
+ return srt_sock != -1;
+ }
+#endif
+ return false;
+}
+
mutex RefCountedGLsync::fence_lock;
projects / nageru / blobdiff