# libSceVideoCoreServerInterface technical debt

### Unknown function info

- [sceVideoCoreAbortRequest, sceVideoCoreAddStream, sceVideoCoreAsyncAddStream, sceVideoCoreAsyncSendRequest, sceVideoCoreCancelThumbnail, sceVideoCoreChangeActiveStatus, sceVideoCoreChangeAudioStream, sceVideoCoreChangeDisplaySize, sceVideoCoreChangeHdcpSetting, sceVideoCoreChangeSubtitle, sceVideoCoreDeleteStream, sceVideoCoreGenerateThumbnail, sceVideoCoreGenerateThumbnail2, sceVideoCoreGetCanvasHandle, sceVideoCoreGetPlayStatus, sceVideoCoreGetPlayStatus2, sceVideoCoreGetStreamUid, sceVideoCoreGetThumbnail, sceVideoCoreGetThumbnail2, sceVideoCoreLaunchVideoCore, sceVideoCoreMediaSourceAbortSourceBuffer, sceVideoCoreMediaSourceAddSourceBuffer, sceVideoCoreMediaSourceAppendData, sceVideoCoreMediaSourceEndOfStream, sceVideoCoreMediaSourceGetBufferedTimeRanges, sceVideoCoreMediaSourceGetInputBufferEmptySize, sceVideoCoreMediaSourceGetPlaybackQuality, sceVideoCoreMediaSourceGetSourceBufferEvent, sceVideoCoreMediaSourceRemoveSourceBuffer, sceVideoCoreMediaSourceSetDuration, sceVideoCoreMediaSourceSetTimestampOffset, sceVideoCorePlayControl, sceVideoCoreRegistEventCallback, sceVideoCoreSetAudioMute, sceVideoCoreSetAudioVolume, sceVideoCoreSetFullScreen, sceVideoCoreSetInitialInfo, sceVideoCoreSetInitializeInfo, sceVideoCoreSetPlaybackRange, sceVideoCoreSetThumbnailInfo, sceVideoCoreSyncAddStream, sceVideoCoreSyncSendRequest and sceVideoCoreUnregistEventCallback](../../../core/libs/prx/libSceVideoCoreServerInterface/Export.cpp) (libSceVideoCoreServerInterface) - names and NIDs are present in the [PS5 3.20 export inventory](https://github.com/DNNDHH/PS5-3.20_Libs/blob/b2a77c09cd71c01f34c790cfbe98c751a13262ad/libSceVideoCoreServerInterface.c), but no credible prototypes were found. The declarations have no parameters solely to resolve known imports; this is not an ABI claim and callers must not call them until signatures are verified

### Functional

- [sceVideoCoreAcquireDecoderResource, sceVideoCoreAcquireDecoderResourceForBeWrapper, sceVideoCoreReleaseDecoderResource and sceVideoCoreReleaseDecoderResourceForBeWrapper](../../../core/libs/prx/libSceVideoCoreServerInterface/Export.cpp) (libSceVideoCoreServerInterface) - console behaviour is unmeasured. The signatures, the 16-byte acquire parameter, the error codes and the bookkeeping follow [shadPS4's `videocore_server.cpp`](https://github.com/shadps4-emu/shadPS4/blob/0614ce324be092791b758d79f93d9f1ca5b10a81/src/core/libraries/videodec/videocore_server.cpp#L27-L81): ids count up from 1 across both kinds and are not reused, and id 0, an unknown id or a resource of the other kind returns RESOURCE_NOT_FOUND (0x80DC0015) or BE_WRAPPER_RESOURCE_NOT_FOUND (0x80DC000E). The parameter is stored but not checked against a decoder budget, so every acquire with valid pointers succeeds, and the callback is stored but never called; when the console calls it is unknown