AnyPS5/docs/dev/debt/libSceGvMp4Parser.md

libSceGvMp4Parser technical debt

Unknown function info

• _ZN23sceMetadataReaderWriter11gvMp4Parser19gvMp4ParserFinalizeEv, _ZN23sceMetadataReaderWriter11gvMp4Parser21gvMp4ParserInitializeEv, ZN23sceMetadataReaderWriter11gvMp4Parser23gvMp4ParserReadMetadataERKSsRKNS_8MetadataERS3, _ZN23sceMetadataReaderWriter11gvMp4Parser24gvMp4ParserWriteMetadataERKSsRKNS_8MetadataE, _ZN23sceMetadataReaderWriter11gvMp4Parser27gvMp4ParserExtractThumbnailERKSsRNS_9ThumbnailE - names and NIDs match the PS5 3.20 inventory; signatures and behavior are unverified. No-parameter declarations resolve imports and throw through NotImplemented_nid_no_patch when called.
• _ZN23sceMetadataReaderWriter11gvMp4Parser21gvMp4ParserInitializeEv, ZN23sceMetadataReaderWriter11gvMp4Parser23gvMp4ParserReadMetadataERKSsRKNS_8MetadataERS3, _ZN23sceMetadataReaderWriter11gvMp4Parser24gvMp4ParserWriteMetadataERKSsRKNS_8MetadataE, _ZN23sceMetadataReaderWriter11gvMp4Parser27gvMp4ParserExtractThumbnailERKSsRNS_9ThumbnailE - 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. Measured as a payload process on a device: dlsym on the dlopen handle of libSceGvMp4Parser.sprx returns null for each of these names, while gvMp4ParserFinalize resolves.

Additional callable exports

• Additional callable exports - 16 NIDs have callable entries in a 3.20-labelled image and in a later 13.60-labelled image under a different module and library identity. Image labels are not independently authenticated. Names, parameter lists, return types, behavior and cross-version equivalence are unverified. The parameterless int declarations are placeholders and every entry throws.

• Older callable NIDs: 3 unidentified exports have unverified names, signatures and behavior. These are throwing import-resolution placeholders; no functionality is implemented. No matching NIDs were found in the later module inventory.