92
edits
Changes
Lay out the Opus multi stream parameters as a struct. Makes it much nicer to read.
Takes a type-0x19 input buffer, an u32 '''WorkBufferSize''' and a TransferMemory handle for '''WorkBuffer'''. Returns an [[#IHardwareOpusDecoder]] object. The TransferMemory is created by the user-process with permissions=0.
Takes a type-0x19 input buffer, an u32 '''WorkBufferSize''' and a TransferMemory handle for '''WorkBuffer'''. Returns an [[#IHardwareOpusDecoder]] object. The TransferMemory is created by the user-process with permissions=0.
The input buffer is a 0x110-byte struct. The user-process initializes this struct the same way as [[#GetWorkBufferSizeForMultiStream]], except that an u8-array specified by the user is copied to +0x10 with size '''ChannelCount''', when '''ChannelCount''' above 0.
The input buffer is a [[#MultiStreamParameters]] struct. The user-process initializes this struct the same way as [[#GetWorkBufferSizeForMultiStream]], except that an u8-array specified by the user is copied to +0x10 with size '''ChannelCount''', when '''ChannelCount''' above 0.
== GetWorkBufferSizeForMultiStream ==
== GetWorkBufferSizeForMultiStream ==
Takes a type-0x19 input buffer. Returns the u32 required size for the decoder's work buffer. Official user-processes align the output size to page-alignment.
Takes a type-0x19 input buffer. Returns the u32 required size for the decoder's work buffer. Official user-processes align the output size to page-alignment.
The input buffer is a 0x110-byte struct. The first 4 s32s are '''SampleRate''', '''ChannelCount''', '''TotalStreamCount''', and '''StereoStreamCount''' while the rest is cleared to zeros.
The input buffer is a [[#MultiStreamParameters]] struct.
== MultiStreamParameters ==
{| class="wikitable" border="1"
|-
! Offset
! Size
! Description
|-
| 0x0
| 0x4
| Sample rate
|-
| 0x4
| 0x4
| Number of channels
|-
| 0x8
| 0x4
| Number of streams
|-
| 0xC
| 0x4
| Number of stereo streams
|-
| 0x10
| 0x100
| u8 array of channel mappings
|}
== IHardwareOpusDecoder ==
== IHardwareOpusDecoder ==