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AnyPS5/docs/dev/debt/libSceJpegParser.md
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# libSceJpegParser technical debt
### Unknown function info
- [_ZN23sceMetadataReaderWriter10jpegParser18jpegParserFinalizeEv, _ZN23sceMetadataReaderWriter10jpegParser20jpegParserInitializeEv, _ZN23sceMetadataReaderWriter10jpegParser22jpegParserReadMetadataERKSsRKNS_8MetadataERS3_, _ZN23sceMetadataReaderWriter10jpegParser23jpegParserWriteMetadataERKSsRKNS_8MetadataE, _ZN23sceMetadataReaderWriter10jpegParser26jpegParserExtractThumbnailERKSsRNS_9ThumbnailE](../../../core/libs/prx/libSceJpegParser/Export.cpp) - names and NIDs match the [PS5 3.20 inventory](https://github.com/DNNDHH/PS5-3.20_Libs/blob/b2a77c09cd71c01f34c790cfbe98c751a13262ad/libSceJpegParser.c); signatures and behavior are unverified. No-parameter declarations resolve imports and throw through `NotImplemented_nid_no_patch` when called.
- [_ZN23sceMetadataReaderWriter10jpegParser20jpegParserInitializeEv, _ZN23sceMetadataReaderWriter10jpegParser22jpegParserReadMetadataERKSsRKNS_8MetadataERS3_, _ZN23sceMetadataReaderWriter10jpegParser23jpegParserWriteMetadataERKSsRKNS_8MetadataE, _ZN23sceMetadataReaderWriter10jpegParser26jpegParserExtractThumbnailERKSsRNS_9ThumbnailE](../../../core/libs/prx/libSceJpegParser/Export.cpp) - not exported by any firmware 13.42 module, so on 13.42 an import of these NIDs resolves to nothing in the firmware; the 3.20 declarations remain for titles built against older firmware. Not measured here.