#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 <stdint.h>
#include <stdio.h>
#include <stdlib.h>
-#include <cstddef>
+#include <string.h>
+#include <cstdint>
+#include <utility>
+#include <vector>
-#include <DeckLinkAPI.h>
-#include <DeckLinkAPIConfiguration.h>
-#include <DeckLinkAPIDiscovery.h>
-#include <DeckLinkAPIModes.h>
#include "bmusb/bmusb.h"
+#define FRAME_SIZE (8 << 20) // 8 MB.
+
using namespace std;
using namespace std::placeholders;
+using namespace bmusb;
namespace {
// TODO: Support stride.
-// TODO: Support AVX2 (adapt from bmusb).
void memcpy_interleaved(uint8_t *dest1, uint8_t *dest2, const uint8_t *src, size_t n)
{
assert(n % 2 == 0);
}
}
+#ifdef __SSE2__
+
+// Returns the number of bytes consumed.
+size_t memcpy_interleaved_fastpath(uint8_t *dest1, uint8_t *dest2, const uint8_t *src, size_t n)
+{
+ const uint8_t *limit = src + n;
+ size_t consumed = 0;
+
+ // Align end to 32 bytes.
+ limit = (const uint8_t *)(intptr_t(limit) & ~31);
+
+ if (src >= limit) {
+ return 0;
+ }
+
+ // Process [0,31] bytes, such that start gets aligned to 32 bytes.
+ const uint8_t *aligned_src = (const uint8_t *)(intptr_t(src + 31) & ~31);
+ if (aligned_src != src) {
+ size_t n2 = aligned_src - src;
+ memcpy_interleaved(dest1, dest2, src, n2);
+ dest1 += n2 / 2;
+ dest2 += n2 / 2;
+ if (n2 % 2) {
+ swap(dest1, dest2);
+ }
+ src = aligned_src;
+ consumed += n2;
+ }
+
+ // Make the length a multiple of 64.
+ if (((limit - src) % 64) != 0) {
+ limit -= 32;
+ }
+ assert(((limit - src) % 64) == 0);
+
+#if __AVX2__
+ const __m256i * __restrict in = (const __m256i *)src;
+ __m256i * __restrict out1 = (__m256i *)dest1;
+ __m256i * __restrict out2 = (__m256i *)dest2;
+
+ __m256i shuffle_cw = _mm256_set_epi8(
+ 15, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 0,
+ 15, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 0);
+ while (in < (const __m256i *)limit) {
+ // Note: For brevity, comments show lanes as if they were 2x64-bit (they're actually 2x128).
+ __m256i data1 = _mm256_stream_load_si256(in); // AaBbCcDd EeFfGgHh
+ __m256i data2 = _mm256_stream_load_si256(in + 1); // IiJjKkLl MmNnOoPp
+
+ data1 = _mm256_shuffle_epi8(data1, shuffle_cw); // ABCDabcd EFGHefgh
+ data2 = _mm256_shuffle_epi8(data2, shuffle_cw); // IJKLijkl MNOPmnop
+
+ data1 = _mm256_permute4x64_epi64(data1, 0b11011000); // ABCDEFGH abcdefgh
+ data2 = _mm256_permute4x64_epi64(data2, 0b11011000); // IJKLMNOP ijklmnop
+
+ __m256i lo = _mm256_permute2x128_si256(data1, data2, 0b00100000);
+ __m256i hi = _mm256_permute2x128_si256(data1, data2, 0b00110001);
+
+ _mm256_storeu_si256(out1, lo);
+ _mm256_storeu_si256(out2, hi);
+
+ in += 2;
+ ++out1;
+ ++out2;
+ consumed += 64;
+ }
+#else
+ const __m128i * __restrict in = (const __m128i *)src;
+ __m128i * __restrict out1 = (__m128i *)dest1;
+ __m128i * __restrict out2 = (__m128i *)dest2;
+
+ __m128i mask_lower_byte = _mm_set1_epi16(0x00ff);
+ while (in < (const __m128i *)limit) {
+ __m128i data1 = _mm_load_si128(in);
+ __m128i data2 = _mm_load_si128(in + 1);
+ __m128i data1_lo = _mm_and_si128(data1, mask_lower_byte);
+ __m128i data2_lo = _mm_and_si128(data2, mask_lower_byte);
+ __m128i data1_hi = _mm_srli_epi16(data1, 8);
+ __m128i data2_hi = _mm_srli_epi16(data2, 8);
+ __m128i lo = _mm_packus_epi16(data1_lo, data2_lo);
+ _mm_storeu_si128(out1, lo);
+ __m128i hi = _mm_packus_epi16(data1_hi, data2_hi);
+ _mm_storeu_si128(out2, hi);
+
+ in += 2;
+ ++out1;
+ ++out2;
+ consumed += 32;
+ }
+#endif
+
+ return consumed;
+}
+
+#endif // __SSE2__
+
} // 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), "Card %d: %s", card_index, model_name);
+ snprintf(buf, sizeof(buf), "PCI card %d: %s", card_index, model_name);
} else {
- snprintf(buf, sizeof(buf), "Card %d: Unknown DeckLink card", card_index);
+ snprintf(buf, sizeof(buf), "PCI card %d: Unknown DeckLink card", card_index);
}
description = buf;
}
exit(1);
}
- /* Set up the video and audio sources. */
- IDeckLinkConfiguration *config;
- if (card->QueryInterface(IID_IDeckLinkConfiguration, (void**)&config) != S_OK) {
- fprintf(stderr, "Failed to get configuration interface for card %d\n", card_index);
+ IDeckLinkAttributes *attr;
+ if (card->QueryInterface(IID_IDeckLinkAttributes, (void**)&attr) != S_OK) {
+ fprintf(stderr, "Card %d has no attributes\n", card_index);
exit(1);
}
- if (config->SetInt(bmdDeckLinkConfigVideoInputConnection, bmdVideoConnectionHDMI) != S_OK) {
- fprintf(stderr, "Failed to set video input connection for card %d\n", card_index);
+ // 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);
}
-
- if (config->SetInt(bmdDeckLinkConfigAudioInputConnection, bmdAudioConnectionEmbedded) != S_OK) {
- fprintf(stderr, "Failed to set video input connection 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);
+ }
}
- // TODO: Make the user mode selectable.
- BMDDisplayModeSupport support;
- IDeckLinkDisplayMode *display_mode;
- if (input->DoesSupportVideoMode(bmdModeHD720p5994, bmdFormat8BitYUV, /*flags=*/0, &support, &display_mode)) {
- fprintf(stderr, "Failed to query display mode for card %d\n", card_index);
+ // 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);
+ }
+ }
- if (support == bmdDisplayModeNotSupported) {
- fprintf(stderr, "Card %d does not support display mode\n", card_index);
+ 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);
}
- if (display_mode->GetFrameRate(&frame_duration, &time_scale) != S_OK) {
- fprintf(stderr, "Could not get frame rate for card %d\n", card_index);
+ set_video_input(bmdVideoConnectionHDMI);
+ 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);
}
- if (input->EnableVideoInput(bmdModeHD720p5994, bmdFormat8BitYUV, 0) != S_OK) {
- fprintf(stderr, "Failed to set 720p59.94 connection for card %d\n", card_index);
- 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));
}
- if (input->EnableAudioInput(48000, bmdAudioSampleType16bitInteger, 2) != S_OK) {
+ 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);
}
if (has_dequeue_callbacks) {
dequeue_cleanup_callback();
}
+ input->Release();
+ config->Release();
+ card->Release();
}
HRESULT STDMETHODCALLTYPE DeckLinkCapture::QueryInterface(REFIID, LPVOID *)
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;
if (video_frame) {
video_format.has_signal = !(video_frame->GetFlags() & bmdFrameHasNoInputSource);
const uint8_t *frame_bytes;
video_frame->GetBytes((void **)&frame_bytes);
- memcpy_interleaved(current_video_frame.data, current_video_frame.data2,
- frame_bytes, width * height * 2);
- current_video_frame.len += width * height * 2;
+ uint8_t *data = current_video_frame.data;
+ uint8_t *data2 = current_video_frame.data2;
+ size_t num_bytes = width * height * 2;
+#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;
+#endif
+
+ if (num_bytes > 0) {
+ memcpy_interleaved(data, data2, frame_bytes, num_bytes);
+ }
+ current_video_frame.len += num_bytes;
video_format.width = width;
video_format.height = height;
- video_format.frame_rate_nom = time_scale;
- video_format.frame_rate_den = frame_duration;
+ }
+ }
+
+ 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;
}
}
// 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, 0x0000);
+ 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 (input->StartStreams() != S_OK) {
}
}
+void DeckLinkCapture::set_video_mode(uint32_t video_mode_id)
+{
+ if (input->StopStreams() != S_OK) {
+ fprintf(stderr, "StopStreams failed\n");
+ exit(1);
+ }
+
+ set_video_mode_no_restart(video_mode_id);
+
+ if (input->StartStreams() != S_OK) {
+ fprintf(stderr, "StartStreams failed\n");
+ exit(1);
+ }
+}
+
+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)) {
+ 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);
+ }
+
+ 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);
+ }
+
+ 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