#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 <cstddef>
-#ifdef __SSE2__
-#include <immintrin.h>
-#endif
+#include <chrono>
+#include <cstdint>
+#include <utility>
+#include <vector>
-#include <DeckLinkAPI.h>
-#include <DeckLinkAPIConfiguration.h>
-#include <DeckLinkAPIDiscovery.h>
-#include <DeckLinkAPIModes.h>
#include "bmusb/bmusb.h"
+#include "decklink_util.h"
+#include "flags.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 {
memcpy_interleaved(dest1, dest2, src, n2);
dest1 += n2 / 2;
dest2 += n2 / 2;
- if (n2 % 1) {
+ if (n2 % 2) {
swap(dest1, dest2);
}
src = aligned_src;
#endif // __SSE2__
+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)
}
}
+ // 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. */
exit(1);
}
- set_video_input(bmdVideoConnectionHDMI);
+ BMDVideoConnection connection = pick_default_video_connection(card, BMDDeckLinkVideoInputConnections, card_index);
+
+ set_video_input(connection);
set_audio_input(bmdAudioConnectionEmbedded);
IDeckLinkDisplayModeIterator *mode_it;
exit(1);
}
- for (IDeckLinkDisplayMode *mode_ptr; mode_it->Next(&mode_ptr) == S_OK; mode_ptr->Release()) {
- VideoMode mode;
-
- const char *mode_name;
- if (mode_ptr->GetName(&mode_name) != S_OK) {
- mode.name = "Unknown mode";
- } else {
- mode.name = mode_name;
- }
-
- mode.autodetect = false;
-
- mode.width = mode_ptr->GetWidth();
- mode.height = mode_ptr->GetHeight();
-
- BMDTimeScale frame_rate_num;
- BMDTimeValue frame_rate_den;
- if (mode_ptr->GetFrameRate(&frame_rate_den, &frame_rate_num) != S_OK) {
- fprintf(stderr, "Could not get frame rate for mode '%s' on card %d\n", mode.name.c_str(), card_index);
- exit(1);
- }
- mode.frame_rate_num = frame_rate_num;
- mode.frame_rate_den = frame_rate_den;
-
- // TODO: Respect the TFF/BFF flag.
- mode.interlaced = (mode_ptr->GetFieldDominance() == bmdLowerFieldFirst || mode_ptr->GetFieldDominance() == bmdUpperFieldFirst);
-
- uint32_t id = mode_ptr->GetDisplayMode();
- video_modes.insert(make_pair(id, mode));
- }
+ video_modes = summarize_video_modes(mode_it, card_index);
+ mode_it->Release();
set_video_mode_no_restart(bmdModeHD720p5994);
- if (input->EnableAudioInput(48000, bmdAudioSampleType32bitInteger, 2) != S_OK) {
- fprintf(stderr, "Failed to enable audio input for card %d\n", card_index);
- exit(1);
- }
-
input->SetCallback(this);
}
HRESULT STDMETHODCALLTYPE DeckLinkCapture::VideoInputFormatChanged(
BMDVideoInputFormatChangedEvents,
IDeckLinkDisplayMode* display_mode,
- BMDDetectedVideoInputFormatFlags)
+ 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;
}
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);
- int width = video_frame->GetWidth();
- int height = video_frame->GetHeight();
+ const int width = video_frame->GetWidth();
+ const int height = video_frame->GetHeight();
const int stride = video_frame->GetRowBytes();
- assert(stride == width * 2);
+ 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;
- uint8_t *data = current_video_frame.data;
- uint8_t *data2 = current_video_frame.data2;
- size_t num_bytes = width * height * 2;
+ if (current_video_frame.interleaved) {
+ uint8_t *data = current_video_frame.data;
+ uint8_t *data2 = current_video_frame.data2;
#ifdef __SSE2__
- size_t consumed = memcpy_interleaved_fastpath(data, data2, frame_bytes, num_bytes);
- frame_bytes += consumed;
- data += consumed / 2;
- data2 += consumed / 2;
- if (num_bytes % 2) {
- swap(data, data2);
- }
- current_video_frame.len += consumed;
- num_bytes -= consumed;
+ size_t consumed = memcpy_interleaved_fastpath(data, data2, frame_bytes, num_bytes);
+ frame_bytes += consumed;
+ data += consumed / 2;
+ data2 += consumed / 2;
+ if (num_bytes % 2) {
+ swap(data, data2);
+ }
+ current_video_frame.len += consumed;
+ num_bytes -= consumed;
#endif
- if (num_bytes > 0) {
- memcpy_interleaved(data, data2, frame_bytes, num_bytes);
+ if (num_bytes > 0) {
+ 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;
}
}
}
}
+ 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?
void DeckLinkCapture::configure_card()
{
if (video_frame_allocator == nullptr) {
- set_video_frame_allocator(new MallocFrameAllocator(FRAME_SIZE, NUM_QUEUED_VIDEO_FRAMES)); // FIXME: leak.
+ 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) {
- set_audio_frame_allocator(new MallocFrameAllocator(65536, NUM_QUEUED_AUDIO_FRAMES)); // FIXME: leak.
+ 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 (input->StopStreams() != S_OK) {
- fprintf(stderr, "StopStreams failed\n");
+ if (!running) {
+ return;
+ }
+ HRESULT result = input->StopStreams();
+ if (result != S_OK) {
+ fprintf(stderr, "StopStreams failed with error 0x%x\n", result);
+ exit(1);
+ }
+ if (input->DisableVideoInput() != S_OK) {
+ fprintf(stderr, "Failed to disable video input for card %d\n", card_index);
exit(1);
}
+ if (input->DisableAudioInput() != S_OK) {
+ fprintf(stderr, "Failed to disable audio input for card %d\n", card_index);
+ exit(1);
+ }
+ running = false;
}
void DeckLinkCapture::set_video_mode(uint32_t video_mode_id)
{
- if (input->StopStreams() != S_OK) {
- fprintf(stderr, "StopStreams failed\n");
- exit(1);
+ 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 (input->StartStreams() != S_OK) {
- fprintf(stderr, "StartStreams failed\n");
- exit(1);
+ 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, bmdFormat8BitYUV, /*flags=*/0, &support, &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);
}
exit(1);
}
- if (input->EnableVideoInput(video_mode_id, bmdFormat8BitYUV, 0) != S_OK) {
- fprintf(stderr, "Failed to set video mode 0x%04x for card %d\n", video_mode_id, 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;
projects / nageru / blobdiff