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MF_E_TOPO_SINK_ACTIVATES_UNSUPPORTED
MF_E_TOPO_SINK_ACTIVATES_UNSUPPORTED concerns output-node construction. Media Foundation commonly represents a playback sink with an activation object, but not every topology-loader path accepts sink activates on output nodes.
Check what the output node actually contains
- Identify whether the node object is an
IMFActivate, an already-created media sink, or a stream sink. - Follow the construction model required by the topology provider or custom topology loader in use.
- For ordinary playback partial topologies, use the documented audio or video renderer activation objects on output nodes.
Replacing the activation object with another codec is unrelated: activation objects create sinks, while codecs are transforms inserted between source and sink. Log the output-node type and object interface before topology resolution.
Microsoft: creating playback topologies · Microsoft: media sinks · Microsoft: topologies
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