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MF_E_WMDRMOTA_NO_ACTION
MF_E_WMDRMOTA_NO_ACTION is an output-trust-authority configuration error. Media Foundation models each OTA around an action performed by the trusted output, such as play, copy, or transcode. A WMDRM OTA without an action cannot participate correctly in policy negotiation.
Trace OTA construction and action selection
- Enumerate the OTAs exposed by
IMFTrustedOutputand record the action returned for each one. - Correlate the selected OTA with the action requested from the input trust authority.
- Check custom trusted-output code for initialization paths that publish an OTA before its action/configuration is complete.
This is different from MF_E_WMDRMOTA_ACTION_MISMATCH, where an action exists but conflicts with current configuration. It is also not an output-protection capability failure. Do not respond by lowering an OPL or changing HDCP settings before the OTA's own action state is valid. Fix the object lifecycle or select the correct OTA for the requested action.
Microsoft: IMFOutputTrustAuthority actions · Microsoft: enumerating OTAs · Microsoft: ITA access actions
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