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
|
Input format 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.
|
| 0x8
|
0x4
|
The default for this is 0x0. This must be <=1.
|
| 0x0C
|
0x4
|
Input video width. Must be >=width_min and <width_max. This must be aligned: the low <dimensions_alignment>-bits must be clear.
|
| 0x10
|
0x4
|
Input 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
|
When non-zero this enables usage of the 4 words starting at offset 0x44. Normally this is set to 0x0 for color-conversion, and 0x1 for video processing.
|
| 0x44
|
0x4
|
See offset 0x40. The default for this is 0x0. Must be <=widthval. Where widthval = <width value from the field at offset 0xC>. The low 4-bits of this value must be clear.
|
| 0x48
|
0x4
|
See offset 0x40. The default for this is 0x0. Must be <=heightval. Where heightval = <height value from the field at offset 0x10>. The low 4-bits of this value must be clear.
|
| 0x4C
|
0x4
|
See offset 0x40. Output video height. Must be >=16 and <=heightval. Where heightval = <height value from the field at offset 0x10>. The low 3-bits of this value must be clear.
|
| 0x50
|
0x4
|
See offset 0x40. Output video width. Must be >=width_min and <=widthval. Where widthval = <width value from the field at offset 0xC>. The low 3-bits of this value must be clear.
|
| 0x54
|
0x4
|
The default for this is 0x0. Must be <=5. For video processing, and when this value is non-zero, the type value at offset 0x0 must not be any of the following: 0x00010004, 0x00010001, 0x0x00100001, or 0x00200001. For video processing, the type value at offset 0x0 must not be 0x80000 when this value at offset 0x54 is non-zero.
|
| 0x58
|
0x4
|
Output format type, see below. SKATER writes value 0x40002 here. The physaddr at offset 0x68 is only checked when this is value 0x00020001.
|
| 0x5C
|
0x4
|
Output video width. Must be >=16, and must be <somewidth_statefield.
|
| 0x60
|
0x4
|
Output 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.
Input format type values:
| Type value
|
Mode
|
Description
|
| 0x00010001
|
Color conversion
|
yuyv422
|
| 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
|
Same as 0x00020001, except with gray-scale?
|
| 0x00080001
|
Video processing
|
?
|
| 0x00180001
|
Video processing
|
?
|
Output format type values:
| Type value
|
Description
|
| 0x00010001
|
See the input format type.
|
| 0x00010005
|
Unknown. A certain MVD state field must not be set to 0x8170 in order to use this.
|
| 0x00010006
|
Unknown, see 0x00010005 for the usage requirement.
|
| 0x00010007
|
Unknown, see 0x00010005 for the usage requirement.
|
| 0x00010008
|
A certain MVD-module state field must not be set to 0x8170 in order to use this. Whether this can actually be used is determined by another MVD-module state field.
|
| 0x00010009
|
Unknown, see 0x00010008 for the usage requirements.
|
| 0x0001000A
|
Unknown, see 0x00010008 for the usage requirements.
|
| 0x0001000B
|
Unknown, see 0x00010008 for the usage requirements.
|
| 0x00020001
|
Some sort of YUV format?
|
| 0x00040000
|
Unknown, doesn't write anything to the out-buffer when doing color-conversion.
|
| 0x00040001
|
RGB555
|
| 0x00040002
|
RGB565
|
| 0x00040003
|
RGB888
|
| 0x00040004
|
BGR565
|
| 0x00041000
|
Unknown, doesn't write anything to the out-buffer when doing color-conversion.
|
| 0x00041001
|
y400a?
|
| 0x00041002
|
y400a?
|
Description
For this command, MVD module DMAs 0x11C-bytes from a MVD state structure to the above output buffer.