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# kVTDecompressionPropertyKey_DecoderProducesRAWOutput

A value that indicates whether the decoder can produce RAW output requiring a RAW processing session for post-decode processing.

```
let kVTDecompressionPropertyKey_DecoderProducesRAWOutput: CFString
```

## Discussion

If this property isn’t implemented, it’s assumed that the decoder does not produce RAW output. If the decoder reports that it produces RAW output, the [`VTDecompressionSession`](/documentation/VideoToolbox/VTDecompressionSession) internally invokes a [`VTRAWProcessingSession`](/documentation/VideoToolbox/VTRAWProcessingSession) by default to produce processed output.

If the client sets [`kVTDecompressionPropertyKey_RequestRAWOutput`](/documentation/VideoToolbox/kVTDecompressionPropertyKey_RequestRAWOutput), the [`VTDecompressionSession`](/documentation/VideoToolbox/VTDecompressionSession) performs no processing and returns the decoder’s native RAW output, and ignores any requested image buffer attributes.

---

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