MVD Services
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This is for using the MVD hardware video decoder(unknown whether MVD can do more than decoding). The New_3DS Internet Browser uses mvd:STD for video decoding.
See here for the supported hardware decoder video codecs. Going by strings in the browser, the hw decoder seems to also support MJPEG.
A maximum of 4 sessions can be opened at a time, for all of these services combined.
MVD Service "mvd:STD"
| Command Header | Available since system version | Description |
|---|---|---|
| 0x00010082 | Initialize | |
| 0x00020000 | Shutdown | |
| 0x00030300 | CalculateVideoOutBufSize | |
| 0x00080142 | DecodeFrame | |
| 0x001D0042 | GetConfig | |
| 0x001E0044 | SetConfig |
This one uses the I/O mapped @ 0x10207000.
This service is used by the New_3DS Internet Browser.
MVD Service "l2b:u"
This one uses the I/O mapped @ 0x10130000.
MVD Service "l2b2:u"
This uses the same command-handler as "l2b:u".
MVD Service "y2r2:u"
This one uses the I/O mapped @ 0x10102000.