5.2. Design Overview

5.2.1. System Architecture

  • DisplayDevice

CV184xhasaHD display device

  • Video layer

CV184xHD display deviceonlyhasaVideo layerandagraphicallayer.

ProcessorSupportDisplayDevice, Video layerandgraphicallayercaseSeeTable 5.1.

ProcessorDeviceFunctionforReferenceTable 5.2.

ProcessorVideo layerFunctionforfor exampleTable 5.3 as shown.

DeviceonVideo OutputInterfaceSupportMaximumtimingTable 5.4as shown.Video layerandDisplayDeviceactualDisplayresolutiontospecificOutputInterface.

Table 5.1 SupportDisplayDevice, Video layerandgraphicallayer

Processorname

HD display device
CV184x

name

Video layer

graphicallayer

Description

multipleSupport1image

OutputInterface

BT.1120/BT.656, MIPI Tx, LCD, I80, RGB
Table 5.2 DisplayDeviceFunction

Processor

MaximumOutputtiming

OutputInterface

overlayconnectDisplay
CV184x

HD display device
1080p@60
720p@60
MIPI Tx
BT.1120/BT.656/
LCD/I80/RGB

Not supported
Table 5.3 Video layerFunction

Processor

dynamicBindcapability

scalingcapability

SupportChannelnumber

CSC

SIN GLEMode

MU IMode
CV184x

Not supported

Not supported

1

1

Support
Table 5.4 DisplayDeviceInterfaceMaximumOutputtiming

Processor

Outputtiming
CV184x

MIPI Tx

1080P@60

BT.1120

720P@60

BT.656

720P@30

LCD

720P@60

  • Channel

SDKwillChanneltoVideo layer, aVideo layeroncanDisplaymultipleVideo. eachaVideoDisplayRegionisaChannel, VideobelimitChannelin, ChannelbelimitinVideo layerin. For aVideo layer, itsaboveChannelis. at the same time, notsameVideo layeronChannelalsois.

  • resolution

resolutionmainhaswithunder2:

− DeviceresolutionbyDevicetimingdetermine, determinethisDeviceOutputValidpixelspointnumber.

− Displayresolutionrefers toinDisplayDeviceonValidDisplayRegion, byVideo layerAttributeinstDispRect Memberdetermine. Displayresolutionless thanetc.toDeviceresolution.

  • graphicallayerBind

graphicallayerBindisrefers toProcessorSupportwillspecificgraphicallayerBindtoVideo layeron.

CV184x Support 1 itemgraphicallayerfixedBindtoVideo layeron.

  • Rotation

VOSupportforinChannelImageperformRotationoperation. alsocanfirstperformRotation, ininChannelperformlaterprocessing.

inoneon, thistimeSetisRotation90or270, canreachfullandImageratio.

  • InputandOutputDataFormat

ProcessorVOSupportInputDataFormatunder Table 5.5.

Tablein PIXEL FORMAT, VIDEO FORMAT ProcessorSupportInputPixel format, Video format.

TableinDataFormatcanReference“2 System Control”section.

Table 5.5 ProcessorSupportInputDataFormat

Processor

Input

CV184x

PIXEL FORMAT
YUV PLANAR 444
YUV PLANAR 422
YUV PLANAR 420
YUV 400
NV12
NV21
NV16
NV61
YUYV
YVYU
UYVY
VYUY
RGB PLANAR 888
BGR PLANAR 888
RGB Packed 888
BGR Packed 888

VIDEO FORMAT

LINEAR