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If capture system gets behind the real-time capture for specified video format configuration, encoder starts to buffer frames. Orange label is warning appears when 100 or more frames added in queue. This might happen sometimes when computer is processing another task while capture continues. But if the count rises continuously, it means system is incapable for real-time capture of specified configuration. Buffer count will rise until it fills adjusted percent of the the physical RAM (Default adjustment is %80) and then system will start dropping frames in order to keep up the real-time capture.
The causes of this rise could be either one or more of the following;
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Blackmagic Decklink: External timecode card is needed. The card must be Adrienne Timecode card (PCIe-LTC/RDR-PCIe-VLTC/RDA-AEC-PCIe-41). Deltacast: Companion card is needed for LTC. The required card link is below. Natively supported on reference input; or can be added through a companion LTC card (option) http://www.deltacast.tv/products/developer-products/accessories/a-ltc-1 AJA: Many AJA cards have built-in LTC input. So external/companion card is not needed |
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Yes its possible AVC intra, we check with ProRes and the bit depth have to be 16 bits. |
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