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MF_E_VIDEO_REN_COPYPROT_FAILED
MF_E_VIDEO_REN_COPYPROT_FAILED is a renderer protection failure. The video stream requires copy protection, but the EVR output path did not successfully establish the protection needed for rendering.
Keep protection failures separate from ordinary device errors
- Record whether the content is protected and whether the default or a custom EVR mixer/presenter is active.
- For custom EVR plug-ins, verify the protected-media interfaces and trusted-video responsibilities required by the renderer design.
- Log display/device changes and the exact protection HRESULT that occurred before this Media Foundation error was reported.
Disabling a protection check or copying the sample into an unprotected surface is not a valid diagnostic workaround for protected content. The EVR explicitly has plug-in contracts for protected rendering. Compare the failing output path with a supported default presenter path to isolate a custom presenter, graphics, or output-protection integration issue.
Microsoft: EVR protected-video interface model · Microsoft: custom EVR presenter · Wine: renderer HRESULT definitions
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