AnyPS5/docs/dev/debt/libSceAudioPropagation.md

libSceAudioPropagation technical debt

Silent stubs

• libSceAudioPropagation lacks acoustic propagation: attributes have no effect, sources expose no paths or rays, rendering preserves the destination mix without adding path contributions, and memory queries return only a 16-byte CPU header. Ray results and audio paths accept empty lists and throw otherwise; calculation returns initial native validation errors and throws for unsupported propagation. Room, portal, source and material handles are tracked, but destruction after their system is destroyed silently succeeds without native lifetime semantics being confirmed. Occlusion, reflections and reverb are absent.

Unknown function info

• sceAudioPropagationSourceSetAudioPath (libSceAudioPropagation, NID tKSmk2JsMAA) - (uint64_t path, const void* data, float gain) follows SharpProspero and SAROS's call, which passes a handle from sceAudioPropagationSourceGetAudioPath, path data and gain 1.0. Path updates are unsupported and every call throws without reading or writing caller memory. The no-propagation model yields no path handles; path allocation, ownership, rendering and console error codes remain unknown.
• libSceAudioPropagation (libSceAudioPropagation) - signatures and struct descriptors recovered from PPSA21567's calls (#481), not from documentation. The system options layout is unknown (only checked for non-null); the fourth argument of sceAudioPropagationSourceCalculateAudioPaths selects reflection order; descriptor validation, ray ownership and path generation remain unimplemented; sceAudioPropagationSourceGetAudioPath output width and invalid-handle/null-output/index errors are confirmed. The meaning of the RenderInfo word at +0x28 is unknown (PPSA21567 and PPSA21564 pass 2); only 2 is accepted. Both titles pass one RenderInfo per call: a count of 0 throws, and larger counts are handled element by element without proof. Other functions still throw for invalid input; their native validation precedence is not yet implemented
• Initialization exports ending in Init, plus sceAudioPropagationSystem, are absent from the supplied native module and retain unresolved signatures. Query, locking, enumeration and report callback signatures are recovered; source/system diagnostic fields still need reconstruction.