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NS_E_UNCOMP_COMP_COMBINATION
The profile mixes compressed and uncompressed paths incompatibly
NS_E_UNCOMP_COMP_COMBINATION (0xC00D1BB6) is produced when one encoding session combines compressed and uncompressed stream choices in an unsupported way. The individual source streams can be healthy; the invalid part is their profile combination.
Map compression state explicitly
For each audio/video stream and audience, record whether it is passed uncompressed or assigned a codec. Note shared source indexes and any audience that differs from the others.
Choose one supported arrangement
Align the stream compression choices with a topology supported by the encoder, then validate before starting capture. Changing codecs at random can hide which stream caused the compressed/uncompressed conflict.
Technical references
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