Yep, you're right I think. For interest here is my filter info...
This is playing a DVD ripped to mkv via Red October HQ.
Filter Graph Info:
Filter 'JRiver Audio Renderer'
CLSID: {A4002F8E-510F-442C-8AD3-F9C7B23FB394}
Host:
Input Pin 'In'
Connected to pin 'Output' of filter 'LAV Audio Decoder (auto-configured)'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx
Filter 'JRiver Subtitle Renderer'
CLSID: {F74E834C-9C98-43ED-89B1-19A9DF82E774}
Host:
Input Pin 'In'
Connected to pin 'Subtitle' of filter 'LAV Source Splitter'
Major type MEDIATYPE_Text Sub type TIME_FORMAT_NONE, Format type TIME_FORMAT_NONE
Filter 'madVR'
CLSID: {E1A8B82A-32CE-4B0D-BE0D-AA68C772E423}
Host: C:\Users\DVD\AppData\Roaming\J River\Media Center 16\Plugins\madvr\madvr.ax
Input Pin 'Input'
Connected to pin 'XForm Out' of filter 'LAV CUVID'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2
Filter 'LAV Audio Decoder (auto-configured)'
CLSID: {E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}
Host: C:\Users\DVD\AppData\Roaming\J River\Media Center 16\Plugins\lav\LAVAudio.ax
Input Pin 'Input'
Connected to pin 'Output' of filter 'JRiver Audio Monitor'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_DOLBY_AC3, Format type FORMAT_WaveFormatEx
Output Pin 'Output'
Connected to pin 'In' of filter 'JRiver Audio Renderer'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx
Filter 'LAV CUVID'
CLSID: {62D767FE-4F1B-478B-B350-8ACE9E4DB00E}
Host: C:\Users\DVD\AppData\Roaming\J River\Media Center 16\Plugins\lav_cuvid\LAVCUVID.ax
Input Pin 'XForm In'
Connected to pin 'Output' of filter 'JRiver Video Monitor'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO
Output Pin 'XForm Out'
Connected to pin 'Input' of filter 'madVR'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2
Filter 'JRiver Audio Monitor'
CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
Host:
Input Pin 'Input'
Connected to pin 'Audio' of filter 'LAV Source Splitter'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_DOLBY_AC3, Format type FORMAT_WaveFormatEx
Output Pin 'Output'
Connected to pin 'Input' of filter 'LAV Audio Decoder (auto-configured)'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_DOLBY_AC3, Format type FORMAT_WaveFormatEx
Filter 'JRiver Video Monitor'
CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
Host:
Input Pin 'Input'
Connected to pin 'Video' of filter 'LAV Source Splitter'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO
Output Pin 'Output'
Connected to pin 'XForm In' of filter 'LAV CUVID'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO
Filter 'LAV Source Splitter'
CLSID: {B98D13E7-55DB-4385-A33D-09FD1BA26338}
Host: C:\Users\DVD\AppData\Roaming\J River\Media Center 16\Plugins\lav\LAVSplitter.ax
Output Pin 'Video'
Connected to pin 'Input' of filter 'JRiver Video Monitor'
Major type MEDIATYPE_Video Sub type MEDIASUBTYPE_MPEG2_VIDEO, Format type FORMAT_MPEG2_VIDEO
Output Pin 'Audio'
Connected to pin 'Input' of filter 'JRiver Audio Monitor'
Major type MEDIATYPE_Audio Sub type MEDIASUBTYPE_DOLBY_AC3, Format type FORMAT_WaveFormatEx
Output Pin 'Subtitle'
Connected to pin 'In' of filter 'JRiver Subtitle Renderer'
Major type MEDIATYPE_Text Sub type TIME_FORMAT_NONE, Format type TIME_FORMAT_NONE