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MF_E_INVALID_FORMAT
MF_E_INVALID_FORMAT is a structural validation failure. Media Foundation recognizes the media format context, but the format data presented to the source or component is not valid enough to use.
Keep “invalid” separate from “unsupported”
Compare this HRESULT with MF_E_UNSUPPORTED_FORMAT. Unsupported content can be well-formed yet outside the component's supported set; invalid content has inconsistent, truncated, or malformed format information. Capture the exact media type attributes or container header bytes passed to the failing component.
- For a media type, enumerate every attribute and its PROPVARIANT type.
- For a file source, preserve the header and the byte offset where parsing first fails.
- Check size fields and dependent values before changing the codec selection.
Re-trying with a different decoder can hide the original source error. Validate the format using a parser for the actual container or elementary stream and fix the producer, transfer, or media-type construction that generated inconsistent data.
Microsoft: Source Resolver · Microsoft: supported media formats · FFmpeg: MP3 parser example
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