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#include "DecklinkInput.hpp"
#include <util/threading.h>
DeckLinkInput::DeckLinkInput(obs_source_t *source,
DeckLinkDeviceDiscovery *discovery_)
: DecklinkBase(discovery_), source(source)
{
discovery->AddCallback(DeckLinkInput::DevicesChanged, this);
}
DeckLinkInput::~DeckLinkInput(void)
{
discovery->RemoveCallback(DeckLinkInput::DevicesChanged, this);
Deactivate();
}
void DeckLinkInput::DevicesChanged(void *param, DeckLinkDevice *device,
bool added)
{
DeckLinkInput *decklink = reinterpret_cast<DeckLinkInput *>(param);
std::lock_guard<std::recursive_mutex> lock(decklink->deviceMutex);
obs_source_update_properties(decklink->source);
if (added && !decklink->instance) {
const char *hash;
long long mode;
obs_data_t *settings;
BMDVideoConnection videoConnection;
BMDAudioConnection audioConnection;
settings = obs_source_get_settings(decklink->source);
hash = obs_data_get_string(settings, "device_hash");
videoConnection = (BMDVideoConnection)obs_data_get_int(
settings, "video_connection");
audioConnection = (BMDAudioConnection)obs_data_get_int(
settings, "audio_connection");
mode = obs_data_get_int(settings, "mode_id");
obs_data_release(settings);
if (device->GetHash().compare(hash) == 0) {
if (!decklink->activateRefs)
return;
if (decklink->Activate(device, mode, videoConnection,
audioConnection))
os_atomic_dec_long(&decklink->activateRefs);
}
} else if (!added && decklink->instance) {
if (decklink->instance->GetDevice() == device) {
os_atomic_inc_long(&decklink->activateRefs);
decklink->Deactivate();
}
}
}
bool DeckLinkInput::Activate(DeckLinkDevice *device, long long modeId,
BMDVideoConnection bmdVideoConnection,
BMDAudioConnection bmdAudioConnection)
{
std::lock_guard<std::recursive_mutex> lock(deviceMutex);
DeckLinkDevice *curDevice = GetDevice();
const bool same = device == curDevice;
const bool isActive = instance != nullptr;
if (same) {
if (!isActive)
return false;
if (instance->GetActiveModeId() == modeId &&
instance->GetVideoConnection() == bmdVideoConnection &&
instance->GetAudioConnection() == bmdAudioConnection &&
instance->GetActivePixelFormat() == pixelFormat &&
instance->GetActiveColorSpace() == colorSpace &&
instance->GetActiveColorRange() == colorRange &&
instance->GetActiveChannelFormat() == channelFormat &&
instance->GetActiveSwapState() == swap)
return false;
}
if (isActive)
instance->StopCapture();
isCapturing = false;
if (!same)
instance.Set(new DeckLinkDeviceInstance(this, device));
if (instance == nullptr)
return false;
if (GetDevice() == nullptr) {
LOG(LOG_ERROR,
"Tried to activate an input with nullptr device.");
return false;
}
DeckLinkDeviceMode *mode = GetDevice()->FindInputMode(modeId);
if (mode == nullptr) {
instance = nullptr;
return false;
}
if (!instance->StartCapture(mode, allow10Bit, bmdVideoConnection,
bmdAudioConnection)) {
instance = nullptr;
return false;
}
os_atomic_inc_long(&activateRefs);
SaveSettings();
id = modeId;
isCapturing = true;
return true;
}
void DeckLinkInput::Deactivate(void)
{
std::lock_guard<std::recursive_mutex> lock(deviceMutex);
if (instance)
instance->StopCapture();
isCapturing = false;
instance = nullptr;
os_atomic_dec_long(&activateRefs);
}
bool DeckLinkInput::Capturing(void)
{
return isCapturing;
}
void DeckLinkInput::SaveSettings()
{
if (!instance)
return;
DeckLinkDevice *device = instance->GetDevice();
DeckLinkDeviceMode *mode = instance->GetMode();
obs_data_t *settings = obs_source_get_settings(source);
obs_data_set_string(settings, "device_hash", device->GetHash().c_str());
obs_data_set_string(settings, "device_name",
device->GetDisplayName().c_str());
obs_data_set_int(settings, "mode_id", instance->GetActiveModeId());
obs_data_set_string(settings, "mode_name", mode->GetName().c_str());
obs_data_release(settings);
}
obs_source_t *DeckLinkInput::GetSource(void) const
{
return source;
}
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