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decklink: Add feature to detect resolution/format

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Closes jp9000/obs-studio#879
This commit is contained in:
mntone
2017-05-05 21:55:06 +09:00
committed by jp9000
parent 1e7e50114e
commit 41c2f5e13b
10 changed files with 220 additions and 18 deletions
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103
plugins/decklink/decklink-device-instance.cpp
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@@ -118,16 +118,15 @@ void DeckLinkDeviceInstance::HandleVideoFrame(
currentFrame.height = (uint32_t)videoFrame->GetHeight();
currentFrame.timestamp = timestamp;
video_format_get_parameters(VIDEO_CS_601, VIDEO_RANGE_PARTIAL,
currentFrame.color_matrix, currentFrame.color_range_min,
currentFrame.color_range_max);
obs_source_output_video(decklink->GetSource(), &currentFrame);
}
void DeckLinkDeviceInstance::FinalizeStream()
{
input->SetCallback(nullptr);
input->DisableVideoInput();
if (channelFormat != SPEAKERS_UNKNOWN)
input->DisableAudioInput();
if (audioRepacker != nullptr)
{
@@ -138,6 +137,43 @@ void DeckLinkDeviceInstance::FinalizeStream()
mode = nullptr;
}
//#define LOG_SETUP_VIDEO_FORMAT 1
void DeckLinkDeviceInstance::SetupVideoFormat(DeckLinkDeviceMode *mode_)
{
if (mode_ == nullptr)
return;
currentFrame.format = ConvertPixelFormat(pixelFormat);
colorSpace = decklink->GetColorSpace();
if (colorSpace == VIDEO_CS_DEFAULT) {
const BMDDisplayModeFlags flags = mode_->GetDisplayModeFlags();
if (flags & bmdDisplayModeColorspaceRec709)
activeColorSpace = VIDEO_CS_709;
else if (flags & bmdDisplayModeColorspaceRec601)
activeColorSpace = VIDEO_CS_601;
else
activeColorSpace = VIDEO_CS_DEFAULT;
} else {
activeColorSpace = colorSpace;
}
colorRange = decklink->GetColorRange();
currentFrame.full_range = colorRange == VIDEO_RANGE_FULL;
video_format_get_parameters(activeColorSpace, colorRange,
currentFrame.color_matrix, currentFrame.color_range_min,
currentFrame.color_range_max);
#ifdef LOG_SETUP_VIDEO_FORMAT
LOG(LOG_INFO, "Setup video format: %s, %s, %s",
pixelFormat == bmdFormat8BitYUV ? "YUV" : "RGB",
activeColorSpace == VIDEO_CS_709 ? "BT.709" : "BT.601",
colorRange == VIDEO_RANGE_FULL ? "full" : "limited");
#endif
}
bool DeckLinkDeviceInstance::StartCapture(DeckLinkDeviceMode *mode_)
{
if (mode != nullptr)
@@ -150,19 +186,28 @@ bool DeckLinkDeviceInstance::StartCapture(DeckLinkDeviceMode *mode_)
if (!device->GetInput(&input))
return false;
pixelFormat = decklink->GetPixelFormat();
currentFrame.format = ConvertPixelFormat(pixelFormat);
BMDVideoInputFlags flags;
const BMDDisplayMode displayMode = mode_->GetDisplayMode();
bool isauto = mode_->GetName() == "Auto";
if (isauto) {
displayMode = bmdModeNTSC;
pixelFormat = bmdFormat8BitYUV;
flags = bmdVideoInputEnableFormatDetection;
} else {
displayMode = mode_->GetDisplayMode();
pixelFormat = decklink->GetPixelFormat();
flags = bmdVideoInputFlagDefault;
}
const HRESULT videoResult = input->EnableVideoInput(displayMode,
pixelFormat, bmdVideoInputFlagDefault);
pixelFormat, flags);
if (videoResult != S_OK) {
LOG(LOG_ERROR, "Failed to enable video input");
return false;
}
SetupVideoFormat(mode_);
channelFormat = decklink->GetChannelFormat();
currentPacket.speakers = channelFormat;
@@ -171,7 +216,6 @@ bool DeckLinkDeviceInstance::StartCapture(DeckLinkDeviceMode *mode_)
const HRESULT audioResult = input->EnableAudioInput(
bmdAudioSampleRate48kHz, bmdAudioSampleType16bitInteger,
channel);
if (audioResult != S_OK)
LOG(LOG_WARNING, "Failed to enable audio input; continuing...");
@@ -257,12 +301,41 @@ HRESULT STDMETHODCALLTYPE DeckLinkDeviceInstance::VideoInputFormatChanged(
IDeckLinkDisplayMode *newMode,
BMDDetectedVideoInputFormatFlags detectedSignalFlags)
{
UNUSED_PARAMETER(events);
UNUSED_PARAMETER(newMode);
UNUSED_PARAMETER(detectedSignalFlags);
input->PauseStreams();
// There is no implementation for automatic format detection, so this
// method goes unused.
mode->SetMode(newMode);
if (events & bmdVideoInputDisplayModeChanged) {
displayMode = mode->GetDisplayMode();
}
if (events & bmdVideoInputColorspaceChanged) {
switch (detectedSignalFlags) {
case bmdDetectedVideoInputRGB444:
pixelFormat = bmdFormat8BitBGRA;
break;
default:
case bmdDetectedVideoInputYCbCr422:
pixelFormat = bmdFormat8BitYUV;
break;
}
}
const HRESULT videoResult = input->EnableVideoInput(displayMode,
pixelFormat, bmdVideoInputEnableFormatDetection);
if (videoResult != S_OK) {
LOG(LOG_ERROR, "Failed to enable video input");
input->StopStreams();
FinalizeStream();
return E_FAIL;
}
SetupVideoFormat(mode);
input->FlushStreams();
input->StartStreams();
return S_OK;
}