Passthrough mode

[kisso]

Hi, is there any way to capture video and audio from one port, and play it to another port?

[MyCometG3]

It depends on devices.

If your device have passthrough playback feature, Desktop Video Setup application shows

Video Output > General > During capture

For my Intensity shuttle thunderbolt, it is not available.

If it is available, you can manage mode using BMDDeckLinkCapturePassthroughMode / DLABDeckLinkCapturePassthroughMode.

[kisso]

I can manage DLABDeckLinkCapturePassthroughMode via which method?

[MyCometG3]

You can review SDK docs and header files in following way.

1) DLABDeckLinkCapturePassthroughMode is an alias of BMDDeckLinkCapturePassthroughMode (DLABConstants.h) 2) BMDDeckLinkCapturePassthroughMode is one of BMDDeckLinkConfigurationID (SDK PDF 3.18) 3) type of BMDDeckLinkCapturePassthroughMode is Int(64) (SDK PDF 3.18) 4) an alias of BMDDeckLinkConfigurationID is DLABConfiguration (DLABConstants.h) 5) DLABConfiguration can be used in DLABridging APIs (DLABridging.h) 6) now you can use DLABDevice methods as getter/setter: (DLABridging.h)

• (nullable NSNumber) intValueForConfiguration:(DLABConfiguration)configurationID error:(NSError _Nullable * _Nullable)error;
• (BOOL) setIntValue:(NSInteger)value forConfiguration:(DLABConfiguration) configurationID error:(NSError _Nullable _Nullable)error;

To confirm how C++ API called via Objective-C++ method: 1) BMDDeckLinkConfigurationID can be used by IDeckLinkConfiguration Interface. (SDK PDF 3.18) 2) For Int(64) value, IDeckLinkConfiguration::SetInt and ::GetInt is available (SDK PDF 2.5.15) 3) You can find getter call in line 1065 (DLABDevice.mm) 4) You can find setter call in linie 1141 (DLABDevice.mm)

[kisso]

Thank you for explanation, now I understand how it works, thank you so much :).

[kisso]

do you think that can I map input to any outputs? or just, when I have input on SDI1, output can be only on SDI2

[MyCometG3]

I am not sure, but you could refer Section "Device Profiles" (SDK 2.4.11) for further information.