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.
|
| 0x0C
|
0x4
|
Video width. Must be >=width_min and <width_max.
|
| 0x10
|
0x4
|
Video height. Must be >=height_min and <height_max.
|
| 0x14
|
0x4
|
Input data physical address, only set for color-conversion.
|
| 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 mentioned above: *_min = 16 for color-conversion, 48 for video processing. *_max = 2048 for color-conversion, 4672 for video processing.
Types:
| Type value
|
Mode
|
Description
|
| 0x00000002
|
Color conversion
|
?
|
| 0x00000003
|
Video processing
|
?
|
| 0x00000005
|
Video processing
|
?
|
| 0x00000006
|
Color conversion
|
?
|
| 0x00000007
|
Color conversion
|
?
|
| 0x00000008
|
Color conversion
|
?
|
| 0x00010001
|
Color conversion
|
"MJPEG" (yuyv422 -> <out color format>)
|
| 0x00020000
|
Color conversion
|
?
|
| 0x00020001
|
Video processing
|
H.264
|
| 0x00020002
|
?
|
?
|
| 0x00080000
|
Video processing
|
?
|
| 0x00080009
|
Video processing
|
?
|
| 0x00180009
|
Video processing
|
?
|
Description
For this command, MVD module DMAs 0x11C-bytes from a MVD state structure to the above output buffer.