MVDSTD:GetConfig

Request

Index Word	Description
0	Header code [0x001D0042]
1	Size, normally 0x11C.
2	(Size<<4) | 12
3	Output data ptr

Response

Index Word	Description
0	Header code
1	Resultcode

Structure

Offset	Size	Description
0x0	0x4	Type, see below.
0x4	0x4	The default for this is 0x0. Must be <=5. When non-zero, the type value at offset 0x0 must be one of the following: 0x00020001, 0x00010001, 0x00010005, 0x00010006, or 0x00010007.
0x0C	0x4	Video width. Must be >=width_min and <width_max. This must be aligned: the low <dimensions_alignment>-bits must be clear.
0x10	0x4	Video height. Must be >=height_min and <height_max. This must be aligned: the low <dimensions_alignment>-bits must be clear.
0x14	0x4	Input data physical address, only set for color-conversion. This isn't used when the value at offset 0x4 is 0x1 or 0x5.
0x18	0x4	Physical data address, only used for color-conversion when the type value has bitmask 0x20000 set. This isn't used when the value at offset 0x4 is 0x1 or 0x5.
0x1C	0x4	Physical data address, only used for color-conversion when the type value is 0x20000. This isn't used when the value at offset 0x4 is 0x1 or 0x5.
0x20	0x4	Physical data address, for color-conversion. This isn't used when the value at offset 0x4 is 0x0 or 0x4.
0x24	0x4	Physical data address, only used for color-conversion when the type value has bitmask 0x20000 set. This isn't used when the value at offset 0x4 is 0x0 or 0x4.
0x40	0x4	0x0 for color-conversion, 0x1 for H.264.
0x4C	0x4	Video height, only set for H.264.
0x50	0x4	Video width, only set for H.264.
0x58	0x4	The default for this is 0x40002. The physaddr at offset 0x68 is only checked when this is value 0x00020001.
0x5C	0x4	Video width. Must be >=16, and must be <somewidth_statefield.
0x60	0x4	Video height. Must be >=16, and must be <someheight_statefield.
0x64	0x4	Output data physical address.
0x68	0x4	Output data physical address, only set for color-conversion.

The size of this structure is fixed to 0x11C-bytes. The user process does the LINEAR-mem vaddr->physaddr conversion for the above physaddrs, when modifying the config struct before using MVDSTD:SetConfig. For the above physaddrs that are checked/used, the physaddr must not be 0x0, and the physaddr must be 8-byte aligned(low 3-bits clear).

See here regarding "MJPEG". For "MJPEG", the output frame is split into two images via the two output physaddrs.

For *_min/*_max/dimensions_alignment mentioned above: *_min = 16 for color-conversion, 48 for video processing. *_max = 2048 for color-conversion, 4672 for video processing. dimensions_alignment = 4 for color-conversion, 3 for video processing.

Types:

Type value	Mode	Description
0x00010001	Color conversion	"MJPEG" (yuyv422 -> <out color format>)
0x00010002	Video processing	?
0x00010004	Video processing	?
0x00010005	Color conversion	?
0x00010006	Color conversion	?
0x00010007	Color conversion	?
0x00020000	Color conversion	?
0x00020001	Video processing	H.264
0x00020002	?	?
0x00080000	Video processing	?
0x00080001	Video processing	?
0x00180001	Video processing	?

Description

For this command, MVD module DMAs 0x11C-bytes from a MVD state structure to the above output buffer.