I made some progress. Getting a picture from camera input. 1080p59 results in a picture but not 4K.
Filter graph when receiving 1080p input...
Filter Graph Info (Time-shifting writer graph):
Filter 'JRiver Time-Shifting Writer Filter'
CLSID: {CBE332C2-ED6F-482D-8497-AB51CA0419B7}
Host: c:\program files\j river\media center 27\tv\mjtsfilewriter.ax
Input Pin 'Input'
Connected to pin 'Output1' of filter 'Blackmagic WDM Capture BBBB04E84625D240'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx
Input Pin 'Input'
Connected to pin 'XForm Out' of filter 'AVIDecompressor'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_UYVY, Format type FORMAT_VideoInfo
Input Pin 'Input'
Filter 'AVIDecompressor'
CLSID: {CF49D4E0-1115-11CE-B03A-0020AF0BA770}
Host: c:\windows\system32\quartz.dll
Input Pin 'XForm In'
Connected to pin 'Output0' of filter 'Blackmagic WDM Capture BBBB04E84625D240'
Major type MEDIATYPE_Video Sub type Unknown GUID Name: {43594448-0000-0010-8000-00AA00389B71}, Format type FORMAT_VideoInfo
Output Pin 'XForm Out'
Connected to pin 'Input' of filter 'JRiver Time-Shifting Writer Filter'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_UYVY, Format type FORMAT_VideoInfo
Filter 'Blackmagic WDM Capture BBBB04E84625D240'
CLSID: {17CCA71B-ECD7-11D0-B908-00A0C9223196}
Host: c:\windows\system32\ksproxy.ax
Output Pin 'Output0'
Connected to pin 'XForm In' of filter 'AVIDecompressor'
Major type MEDIATYPE_Video Sub type Unknown GUID Name: {43594448-0000-0010-8000-00AA00389B71}, Format type FORMAT_VideoInfo
Output Pin 'Output1'
Connected to pin 'Input' of filter 'JRiver Time-Shifting Writer Filter'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx
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Filter Graph Info (Time-shifting player graph):
Filter 'madVR'
CLSID: {E1A8B82A-32CE-4B0D-BE0D-AA68C772E423}
Host: C:\Users\lawstucj\AppData\Roaming\J River\Media Center 27\Plugins\madvr\madVR64.ax
Input Pin 'Input'
Connected to pin 'Output' of filter 'JRiver Video Monitor'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_UYVY, Format type FORMAT_VideoInfo
Filter 'JRiver Audio Renderer'
CLSID: {A4002F8E-510F-442C-8AD3-F9C7B23FB394}
Host:
Input Pin 'In'
Connected to pin 'Output' of filter 'JRiver Audio Monitor'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx
Filter 'JRiver Video Monitor'
CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
Host:
Input Pin 'Input'
Connected to pin 'Video Output' of filter 'JRiver Time-Shifting Reader Filter'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_UYVY, Format type FORMAT_VideoInfo
Output Pin 'Output'
Connected to pin 'Input' of filter 'madVR'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_UYVY, Format type FORMAT_VideoInfo
Filter 'JRiver Audio Monitor'
CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
Host:
Input Pin 'Input'
Connected to pin 'Audio Output' of filter 'JRiver Time-Shifting Reader Filter'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx
Output Pin 'Output'
Connected to pin 'In' of filter 'JRiver Audio Renderer'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx
Filter 'JRiver Time-Shifting Reader Filter'
CLSID: {8303B00A-D9E3-4BD7-A79A-AD7077F54123}
Host: c:\program files\j river\media center 27\tv\mjtsfilereader.ax
Output Pin 'Audio Output'
Connected to pin 'Input' of filter 'JRiver Audio Monitor'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx
Output Pin 'Video Output'
Connected to pin 'Input' of filter 'JRiver Video Monitor'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_UYVY, Format type FORMAT_VideoInfo