Hi Takashi,
There is no direct conversion path from bmdFormat8BitYUV to bmdFormat12BitRGBLE, hence why IDeckLinkVideoConversion::ConvertFrame returns E_NOTIMPL.
To implement this conversion path, you will need 2-stages:
- bmdFormat8BitYUV - 8-bit 4:2:2 SMPTE range, to
- bmdFormat8BitARGB - 8-bit 4:4:4:4 full-range, to
- bmdFormat12BitRGBLE - 12-bit 4:4:4 full-range
Regards
Cameron