2.4.10 H.265 Capture

Certain DeckLink devices support encoded (e.g. H.265) capture in addition to regular uncompressed capture.

Note

the Encoded Capture interface is distinct from the H.264 only ‘Streaming Encoder’ interface.

2.4.10.1 Encoded Capture

An application performing an encoded capture operation should perform the following steps:

• Obtain a reference to the IDeckLinkEncoderInput interface from IDeckLinkInput via IUnknown::QueryInterface().

• If desired, enumerate the supported encoded capture video modes by calling IDeckLinkEncoderInput::GetDisplayModeIterator().

• For each reported capture mode, call IDeckLinkEncoderInput::DoesSupportVideoMode() to check if the combination of the video mode and pixel format is supported.

• IDeckLinkEncoderInput::EnableVideoInput()

• IDeckLinkEncoderInput::EnableAudioInput()

• IDeckLinkEncoderInput::SetCallback()

• IDeckLinkEncoderInput::StartStreams()

While streams are running:

• Receive calls to IDeckLinkEncoderInputCallback::VideoPacketArrived() with encoded video packets.

• Receive calls to IDeckLinkEncoderInputCallback::AudioPacketArrived() with audio packets.

• IDeckLinkInput::StopStreams()

Note

If audio is not required, the call to IDeckLinkEncoderInput::EnableAudioInput() may be omitted and the IDeckLinkEncoderInputCallback::AudioPacketArrived() callback will not be called.