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12 lines
2.5 KiB
Markdown
12 lines
2.5 KiB
Markdown
# libSceM4aacEnc technical debt
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### Additional callable exports
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- [M4aac encoder export `dyjd6gEaAXw`](../../../core/libs/prx/libSceM4aacEnc/Export.cpp) is a function record with qualifier `D#A` in older and later version-labelled modules. Both map library ID 3 and module ID 0 to `libSceM4aacEnc`. Older module words: `0x08540001`, `0x03200004`; later: `0x13590001`, `0x13600007`. Both contain 18 function NIDs; sorted-LF SHA-256: `b60081c1301a28b192a54d084092ac13164556129b70ee7aa92407ff24256115`, using the [static ELF membership procedure](https://github.com/boykopovar/AnyPS5/pull/12367#issuecomment-6470603298). Labels do not authenticate retail provenance; the digest identifies the NID set only. Independent verification requires a matching image. The name, signature and behavior are unverified; this declaration throws.
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### Unknown function info
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- [libSceM4aacEnc](../../../core/libs/prx/libSceM4aacEnc/Export.cpp) (libSceM4aacEnc, sysmodule id `0x000000bc`) has no encoder, so all seventeen exports throw. PPSA03332 imports them and fails to load (`libSceM4aacEnc.prx: cannot open shared object file`) when the library is absent. The names are from the aerolib NID list: `sceM4aacEncClearContext`, `sceM4aacEncClearContextEx`, `sceM4aacEncCreateEncoder`, `sceM4aacEncCreateEncoderEx`, `sceM4aacEncDeleteEncoder`, `sceM4aacEncDeleteEncoderEx`, `sceM4aacEncEncode`, `sceM4aacEncEncodeEx`, `sceM4aacEncEncodeWithPriority`, `sceM4aacEncEncodeWithPriorityEx`, `sceM4aacEncFlush`, `sceM4aacEncFlushEx`, `sceM4aacEncFlushWithPriority`, `sceM4aacEncFlushWithPriorityEx`, `sceM4aacEncGetContext`, `sceM4aacEncInitialize` and `sceM4aacEncTerminate`
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- [sceM4aacEnc*](../../../core/libs/prx/libSceM4aacEnc/Export.cpp) (libSceM4aacEnc) - five signatures follow [Orbital](https://github.com/AlexAltea/orbital/blob/cc408367da6a6ebbf5ac1ac559fefeadc73b2831/tools/ida/db_types.json): `int32_t sceM4aacEncClearContext(int32_t m4aacEncHandle)`, `int32_t sceM4aacEncCreateEncoder(int32_t channels, int32_t samplingRate, int32_t bitRate, int32_t inputFormat, int32_t outputFormat, int32_t *pInternalError)`, `int32_t sceM4aacEncDeleteEncoder(int32_t m4aacEncHandle, int32_t *pInternalError)`, `int32_t sceM4aacEncEncode(int32_t m4aacEncHandle, void *pInput, uint32_t inputByte, void *pOutput, uint32_t *pOutputByte, int32_t *pInternalError)` and `int32_t sceM4aacEncFlush(int32_t m4aacEncHandle, void *pOutput, uint32_t *pOutputByte, int32_t *pInternalError)`. Orbital has no entry for the other twelve, which are declared without parameters, so their signatures are unknown
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