--- /dev/null
+#include "decklink_capture.h"
+
+#include <DeckLinkAPI.h>
+#include <DeckLinkAPIConfiguration.h>
+#include <DeckLinkAPIDiscovery.h>
+#include <DeckLinkAPIModes.h>
+#include <assert.h>
+#ifdef __SSE2__
+#include <immintrin.h>
+#endif
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <chrono>
+#include <cstdint>
+#include <utility>
+#include <vector>
+
+#include "bmusb/bmusb.h"
+#include "decklink_util.h"
+#include "flags.h"
+#include "memcpy_interleaved.h"
+#include "v210_converter.h"
+
+#define FRAME_SIZE (8 << 20) // 8 MB.
+
+using namespace std;
+using namespace std::chrono;
+using namespace std::placeholders;
+using namespace bmusb;
+
+namespace {
+
+BMDPixelFormat pixel_format_to_bmd(PixelFormat pixel_format)
+{
+ switch (pixel_format) {
+ case PixelFormat_8BitYCbCr:
+ return bmdFormat8BitYUV;
+ case PixelFormat_10BitYCbCr:
+ return bmdFormat10BitYUV;
+ default:
+ assert(false);
+ }
+}
+
+} // namespace
+
+DeckLinkCapture::DeckLinkCapture(IDeckLink *card, int card_index)
+ : card_index(card_index), card(card)
+{
+ {
+ const char *model_name;
+ char buf[256];
+ if (card->GetModelName(&model_name) == S_OK) {
+ snprintf(buf, sizeof(buf), "PCI card %d: %s", card_index, model_name);
+ } else {
+ snprintf(buf, sizeof(buf), "PCI card %d: Unknown DeckLink card", card_index);
+ }
+ description = buf;
+ }
+
+ if (card->QueryInterface(IID_IDeckLinkInput, (void**)&input) != S_OK) {
+ fprintf(stderr, "Card %d has no inputs\n", card_index);
+ exit(1);
+ }
+
+ IDeckLinkAttributes *attr;
+ if (card->QueryInterface(IID_IDeckLinkAttributes, (void**)&attr) != S_OK) {
+ fprintf(stderr, "Card %d has no attributes\n", card_index);
+ exit(1);
+ }
+
+ // Get the list of available video inputs.
+ int64_t video_input_mask;
+ if (attr->GetInt(BMDDeckLinkVideoInputConnections, &video_input_mask) != S_OK) {
+ fprintf(stderr, "Failed to enumerate video inputs for card %d\n", card_index);
+ exit(1);
+ }
+ const vector<pair<BMDVideoConnection, string>> video_input_types = {
+ { bmdVideoConnectionSDI, "SDI" },
+ { bmdVideoConnectionHDMI, "HDMI" },
+ { bmdVideoConnectionOpticalSDI, "Optical SDI" },
+ { bmdVideoConnectionComponent, "Component" },
+ { bmdVideoConnectionComposite, "Composite" },
+ { bmdVideoConnectionSVideo, "S-Video" }
+ };
+ for (const auto &video_input : video_input_types) {
+ if (video_input_mask & video_input.first) {
+ video_inputs.emplace(video_input.first, video_input.second);
+ }
+ }
+
+ // And then the available audio inputs.
+ int64_t audio_input_mask;
+ if (attr->GetInt(BMDDeckLinkAudioInputConnections, &audio_input_mask) != S_OK) {
+ fprintf(stderr, "Failed to enumerate audio inputs for card %d\n", card_index);
+ exit(1);
+ }
+ const vector<pair<BMDAudioConnection, string>> audio_input_types = {
+ { bmdAudioConnectionEmbedded, "Embedded" },
+ { bmdAudioConnectionAESEBU, "AES/EBU" },
+ { bmdAudioConnectionAnalog, "Analog" },
+ { bmdAudioConnectionAnalogXLR, "Analog XLR" },
+ { bmdAudioConnectionAnalogRCA, "Analog RCA" },
+ { bmdAudioConnectionMicrophone, "Microphone" },
+ { bmdAudioConnectionHeadphones, "Headphones" }
+ };
+ for (const auto &audio_input : audio_input_types) {
+ if (audio_input_mask & audio_input.first) {
+ audio_inputs.emplace(audio_input.first, audio_input.second);
+ }
+ }
+
+ // Check if we the card supports input autodetection.
+ if (attr->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &supports_autodetect) != S_OK) {
+ fprintf(stderr, "Warning: Failed to ask card %d whether it supports input format autodetection\n", card_index);
+ supports_autodetect = false;
+ }
+
+ // If there's more than one subdevice on this card, label them.
+ int64_t num_subdevices, subdevice_idx;
+ if (attr->GetInt(BMDDeckLinkNumberOfSubDevices, &num_subdevices) == S_OK && num_subdevices > 1) {
+ if (attr->GetInt(BMDDeckLinkSubDeviceIndex, &subdevice_idx) == S_OK) {
+ char buf[256];
+ snprintf(buf, sizeof(buf), " (subdevice %d)", int(subdevice_idx));
+ description += buf;
+ }
+ }
+
+ attr->Release();
+
+ /* Set up the video and audio sources. */
+ if (card->QueryInterface(IID_IDeckLinkConfiguration, (void**)&config) != S_OK) {
+ fprintf(stderr, "Failed to get configuration interface for card %d\n", card_index);
+ exit(1);
+ }
+
+ BMDVideoConnection connection = pick_default_video_connection(card, BMDDeckLinkVideoInputConnections, card_index);
+
+ set_video_input(connection);
+ set_audio_input(bmdAudioConnectionEmbedded);
+
+ IDeckLinkDisplayModeIterator *mode_it;
+ if (input->GetDisplayModeIterator(&mode_it) != S_OK) {
+ fprintf(stderr, "Failed to enumerate display modes for card %d\n", card_index);
+ exit(1);
+ }
+
+ video_modes = summarize_video_modes(mode_it, card_index);
+ mode_it->Release();
+
+ set_video_mode_no_restart(bmdModeHD720p5994);
+
+ input->SetCallback(this);
+}
+
+DeckLinkCapture::~DeckLinkCapture()
+{
+ if (has_dequeue_callbacks) {
+ dequeue_cleanup_callback();
+ }
+ input->Release();
+ config->Release();
+ card->Release();
+}
+
+HRESULT STDMETHODCALLTYPE DeckLinkCapture::QueryInterface(REFIID, LPVOID *)
+{
+ return E_NOINTERFACE;
+}
+
+ULONG STDMETHODCALLTYPE DeckLinkCapture::AddRef(void)
+{
+ return refcount.fetch_add(1) + 1;
+}
+
+ULONG STDMETHODCALLTYPE DeckLinkCapture::Release(void)
+{
+ int new_ref = refcount.fetch_sub(1) - 1;
+ if (new_ref == 0)
+ delete this;
+ return new_ref;
+}
+
+HRESULT STDMETHODCALLTYPE DeckLinkCapture::VideoInputFormatChanged(
+ BMDVideoInputFormatChangedEvents,
+ IDeckLinkDisplayMode* display_mode,
+ BMDDetectedVideoInputFormatFlags format_flags)
+{
+ if (format_flags & bmdDetectedVideoInputRGB444) {
+ fprintf(stderr, "WARNING: Input detected as 4:4:4 RGB, but Nageru can't consume that yet.\n");
+ fprintf(stderr, "Doing hardware conversion to 4:2:2 Y'CbCr.\n");
+ }
+ if (supports_autodetect && display_mode->GetDisplayMode() != current_video_mode) {
+ set_video_mode(display_mode->GetDisplayMode());
+ }
+ if (display_mode->GetFrameRate(&frame_duration, &time_scale) != S_OK) {
+ fprintf(stderr, "Could not get new frame rate\n");
+ exit(1);
+ }
+ field_dominance = display_mode->GetFieldDominance();
+ return S_OK;
+}
+
+HRESULT STDMETHODCALLTYPE DeckLinkCapture::VideoInputFrameArrived(
+ IDeckLinkVideoInputFrame *video_frame,
+ IDeckLinkAudioInputPacket *audio_frame)
+{
+ if (!done_init) {
+ char thread_name[16];
+ snprintf(thread_name, sizeof(thread_name), "DeckLink_C_%d", card_index);
+ pthread_setname_np(pthread_self(), thread_name);
+
+ sched_param param;
+ memset(¶m, 0, sizeof(param));
+ param.sched_priority = 1;
+ if (sched_setscheduler(0, SCHED_RR, ¶m) == -1) {
+ printf("couldn't set realtime priority for DeckLink thread: %s\n", strerror(errno));
+ }
+
+ if (has_dequeue_callbacks) {
+ dequeue_init_callback();
+ }
+ done_init = true;
+ }
+
+ steady_clock::time_point now = steady_clock::now();
+
+ FrameAllocator::Frame current_video_frame, current_audio_frame;
+ VideoFormat video_format;
+ AudioFormat audio_format;
+
+ video_format.frame_rate_nom = time_scale;
+ video_format.frame_rate_den = frame_duration;
+ // TODO: Respect the TFF/BFF flag.
+ video_format.interlaced = (field_dominance == bmdLowerFieldFirst || field_dominance == bmdUpperFieldFirst);
+ video_format.second_field_start = 1;
+
+ if (video_frame) {
+ video_format.has_signal = !(video_frame->GetFlags() & bmdFrameHasNoInputSource);
+
+ const int width = video_frame->GetWidth();
+ const int height = video_frame->GetHeight();
+ const int stride = video_frame->GetRowBytes();
+ const BMDPixelFormat format = video_frame->GetPixelFormat();
+ assert(format == pixel_format_to_bmd(current_pixel_format));
+ if (global_flags.ten_bit_input) {
+ assert(stride == int(v210Converter::get_v210_stride(width)));
+ } else {
+ assert(stride == width * 2);
+ }
+
+ current_video_frame = video_frame_allocator->alloc_frame();
+ if (current_video_frame.data != nullptr) {
+ const uint8_t *frame_bytes;
+ video_frame->GetBytes((void **)&frame_bytes);
+ size_t num_bytes = stride * height;
+
+ if (current_video_frame.interleaved) {
+ uint8_t *data = current_video_frame.data;
+ uint8_t *data2 = current_video_frame.data2;
+ memcpy_interleaved(data, data2, frame_bytes, num_bytes);
+ } else {
+ memcpy(current_video_frame.data, frame_bytes, num_bytes);
+ }
+ current_video_frame.len += num_bytes;
+
+ video_format.width = width;
+ video_format.height = height;
+ video_format.stride = stride;
+ }
+ }
+
+ if (audio_frame) {
+ int num_samples = audio_frame->GetSampleFrameCount();
+
+ current_audio_frame = audio_frame_allocator->alloc_frame();
+ if (current_audio_frame.data != nullptr) {
+ const uint8_t *frame_bytes;
+ audio_frame->GetBytes((void **)&frame_bytes);
+ current_audio_frame.len = sizeof(int32_t) * 2 * num_samples;
+
+ memcpy(current_audio_frame.data, frame_bytes, current_audio_frame.len);
+
+ audio_format.bits_per_sample = 32;
+ audio_format.num_channels = 2;
+ }
+ }
+
+ current_video_frame.received_timestamp = now;
+ current_audio_frame.received_timestamp = now;
+
+ if (current_video_frame.data != nullptr || current_audio_frame.data != nullptr) {
+ // TODO: Put into a queue and put into a dequeue thread, if the
+ // BlackMagic drivers don't already do that for us?
+ frame_callback(timecode,
+ current_video_frame, /*video_offset=*/0, video_format,
+ current_audio_frame, /*audio_offset=*/0, audio_format);
+ }
+
+ timecode++;
+ return S_OK;
+}
+
+void DeckLinkCapture::configure_card()
+{
+ if (video_frame_allocator == nullptr) {
+ owned_video_frame_allocator.reset(new MallocFrameAllocator(FRAME_SIZE, NUM_QUEUED_VIDEO_FRAMES));
+ set_video_frame_allocator(owned_video_frame_allocator.get());
+ }
+ if (audio_frame_allocator == nullptr) {
+ owned_audio_frame_allocator.reset(new MallocFrameAllocator(65536, NUM_QUEUED_AUDIO_FRAMES));
+ set_audio_frame_allocator(owned_audio_frame_allocator.get());
+ }
+}
+
+void DeckLinkCapture::start_bm_capture()
+{
+ if (running) {
+ return;
+ }
+ if (input->EnableVideoInput(current_video_mode, pixel_format_to_bmd(current_pixel_format), supports_autodetect ? bmdVideoInputEnableFormatDetection : 0) != S_OK) {
+ fprintf(stderr, "Failed to set video mode 0x%04x for card %d\n", current_video_mode, card_index);
+ exit(1);
+ }
+ if (input->EnableAudioInput(48000, bmdAudioSampleType32bitInteger, 2) != S_OK) {
+ fprintf(stderr, "Failed to enable audio input for card %d\n", card_index);
+ exit(1);
+ }
+
+ if (input->StartStreams() != S_OK) {
+ fprintf(stderr, "StartStreams failed\n");
+ exit(1);
+ }
+ running = true;
+}
+
+void DeckLinkCapture::stop_dequeue_thread()
+{
+ if (!running) {
+ return;
+ }
+ HRESULT result = input->StopStreams();
+ if (result != S_OK) {
+ fprintf(stderr, "StopStreams failed with error 0x%x\n", result);
+ exit(1);
+ }
+
+ // We could call DisableVideoInput() and DisableAudioInput() here,
+ // but they seem to be taking a really long time, and we only do this
+ // during shutdown anyway, so StopStreams() will suffice.
+
+ running = false;
+}
+
+void DeckLinkCapture::set_video_mode(uint32_t video_mode_id)
+{
+ if (running) {
+ if (input->PauseStreams() != S_OK) {
+ fprintf(stderr, "PauseStreams failed\n");
+ exit(1);
+ }
+ if (input->FlushStreams() != S_OK) {
+ fprintf(stderr, "FlushStreams failed\n");
+ exit(1);
+ }
+ }
+
+ set_video_mode_no_restart(video_mode_id);
+
+ if (running) {
+ if (input->StartStreams() != S_OK) {
+ fprintf(stderr, "StartStreams failed\n");
+ exit(1);
+ }
+ }
+}
+
+void DeckLinkCapture::set_pixel_format(PixelFormat pixel_format)
+{
+ current_pixel_format = pixel_format;
+ set_video_mode(current_video_mode);
+}
+
+void DeckLinkCapture::set_video_mode_no_restart(uint32_t video_mode_id)
+{
+ BMDDisplayModeSupport support;
+ IDeckLinkDisplayMode *display_mode;
+ if (input->DoesSupportVideoMode(video_mode_id, pixel_format_to_bmd(current_pixel_format), /*flags=*/0, &support, &display_mode)) {
+ fprintf(stderr, "Failed to query display mode for card %d\n", card_index);
+ exit(1);
+ }
+
+ if (support == bmdDisplayModeNotSupported) {
+ fprintf(stderr, "Card %d does not support display mode\n", card_index);
+ exit(1);
+ }
+
+ if (display_mode->GetFrameRate(&frame_duration, &time_scale) != S_OK) {
+ fprintf(stderr, "Could not get frame rate for card %d\n", card_index);
+ exit(1);
+ }
+
+ field_dominance = display_mode->GetFieldDominance();
+
+ if (running) {
+ if (input->EnableVideoInput(video_mode_id, pixel_format_to_bmd(current_pixel_format), supports_autodetect ? bmdVideoInputEnableFormatDetection : 0) != S_OK) {
+ fprintf(stderr, "Failed to set video mode 0x%04x for card %d\n", video_mode_id, card_index);
+ exit(1);
+ }
+ }
+
+ current_video_mode = video_mode_id;
+}
+
+void DeckLinkCapture::set_video_input(uint32_t video_input_id)
+{
+ if (config->SetInt(bmdDeckLinkConfigVideoInputConnection, video_input_id) != S_OK) {
+ fprintf(stderr, "Failed to set video input connection for card %d\n", card_index);
+ exit(1);
+ }
+
+ current_video_input = video_input_id;
+}
+
+void DeckLinkCapture::set_audio_input(uint32_t audio_input_id)
+{
+ if (config->SetInt(bmdDeckLinkConfigAudioInputConnection, audio_input_id) != S_OK) {
+ fprintf(stderr, "Failed to set audio input connection for card %d\n", card_index);
+ exit(1);
+ }
+
+ current_audio_input = audio_input_id;
+}
projects / nageru / blobdiff