12.9. VDEC

Debugging Information

# cat /proc/cvitek/vdec Module: [VDEC] System Build Time [#1 PREEMPT Thu Sep 12 19:57:57 CST 2024] VdecMaxChnNum: 64 MiniBufMode: 0 enVdecVBSource: 0 ParallelMode: 0 MaxPicWidth: 4096 MaxPicHeight: 2160 MaxSliceNum: 200 VdhMsgNum: 0 VdhBinSize: 0 VdhExtMemLevel: 0 MaxJpegeWidth: 8192 MaxJpegeHeight: 8192 SupportProgressive: 0 DynamicAllocate: 0 CapStrategy: 0 ----- CHN COMM ATTR & PARAMS -------------------------------------- ID: 0 TYPE: H264 MaxW: 4096 MaxH: 2304 Width: 1088 Height: 1920 Stride: 1152 PixelFormat: YUV420 PTS: 0 PA: 0x843dc000 StrInputMode: FRAME/NOBLOCK StrBufSize: 5537792 FrmBufSize: 0 ParamPixelFormat YUV420 FrmBufCnt: 3 TmvBufSize: 0 ID: 0 DispNum: 2 DispMode: PLAYBACK SetUserPic: N EnUserPic: N Rotation: 0 PicPoolId: -1 TmvPoolId: -1 STATE: START ----- CHN VIDEO ATTR & PARAMS ------------------------------------- ID: 0 VfmwID: 1 RefNum: 0 TemporalMvp: N ErrThr: 0 DecMode: IPB OutPutOrder: DISP Compress: NONE VideoFormat: 0 MaxVPS: 0 MaxSPS: 0 MaxPPS: 0 MaxSlice: 200 ----- CHN PICTURE ATTR & PARAMS--------------------------------- ID: 0 Alpha: 0 -----VDEC CHN PERFORMANCE------------------------------------------------ ID: 0 No.SendStreamPerSec: 72 No.DecFramePerSec: 3 HwDecTime: 10105 us 

Debugging Information Analysis

recordcurrentDecoding channelUsestatusanditsAttributeConfiguration. canused to checkAttributeConfigurationandcurrentDecoding channelstatisticsStatus.

Parameter Description

Parameter		Description
MODULE PARAM	VdecMaxChnNum	VDEC SupportMaximumDecoding channelnumber
	MiniBufMode	WhetherUsestreamBufferMode 0: Disable 1: Enable (ModeonlyinFrameModecaseunderValid)
	enVdecVBSource	allocate VDEC VideoBufferMode (VB) 1: module VB 2: private VB 3: user VB
	ParallelMode	VDH DecodingMode 0: Mode 1: Mode
	MaxPicWidth	Video DecodingSupportMaximumWidth
	MaxPicHeight	Video DecodingSupportMaximumHeight
	MaxSliceNum	Video DecodingSupportMaximumnumber
	VdhMsgNum	VDH poolQuantity
	VdhBinSize	used to storage VDH DecodingDataBufferSize
	VdhExtMemLevel	used to VDH DecodingProcessoroutsideMemoryallocateHorizontal
	MaxJpegeWidth	pendingDecodingImageMaximumWidth
	MaxJpegeHeight	pendingDecodingImageMaximumHeight
	SupportProgressive	WhetherSupportprogressivescanFormat 0: no 1: yes
	DynamicAllocate	SupportprogressiveFormattimeallocateMode 0: staticallocate 1: dynamicallocate
	CapStrategy	DecodingImageMaximumWidthandHeightcapabilitystrategy 0: toModulecapabilitystrategy 1: toChannelcapabilitystrategy
CHN COMM ATTR & PARAMS	ID	Decoding channel number
	TYPE	Decoding channelType PT_H264 PT_MJPEG PT_JPEG
	MaxW	ConfigurationDecodingImageMaximumWidth
	MaxH	ConfigurationDecodingImageMaximumHeight
	Width	DecodingImageWidth
	Height	DecodingImageHeight
	Stride	DecodingImageAlignmentWidth
	PixelFormat	ImageOutputFormat
	PTS	DecodingTimestamp
	PA	storagecurrentFrameAddress
	StrInputMode	VDEC ChannelDatastreamtransmitMode Modecanistwo: Frame, streamand: withFrame, streamandModetransmit. Frame, streamandModetransmit BLOCK, NOBLOCK and TIMEOUT: streamin blocking, non-blockingandTimeoutModeunderDatastream
	StrBufSize	DatastreamBufferSize
	FrmBufSize	FrameBufferSize, onlyin VB ModeunderValid
	ParamPixelFormat	CreateDecoding channelSetFrameFormat, used to calculateFrameBufferrequiredSize
	FrmBufCnt	FrameBufferQuantity, onlyin VB ModeunderValid
	TmvBufSize	TMV BufferSize. thisParameteronlyinprivate VB ModeunderValid.
	DispNum	DisplayFramenumber Value Range: [0, 16]
	DispMode	DisplayMode Value Range: PLAYBACK and PREVIEW
	SetUserPic	WhetherSetUserImage
	EnUserPic	WhetherEnableUserImage
	Rotation	VDEC ImageRotationangle
	PicPoolId	FrameBuffer VB pool ID, onlyinprivate VB andUser VB ModeunderValid.
	TmvPoolId	Tmv VB pool ID, onlyinprivate VB andUser VB ModeunderValid.
	STATE	VDEC ChannelWhetherstartReceiveDatastream START (start): ChannelstartReceiveDatastream. STOP (stop): ChannelstopReceiveDatastream.
CHN VIDEO ATTR & PARAMS	ID	Decoding channel number
	VfmwID	Videofirmware (VFMW) Channel ID
	RefNum	refer toFrameQuantity Value Range: [0, 16]
	TemporalMvp	WhetherSupporttimemotionprediction
	ErrThr	streamBitratethreshold
	DecMode	DecodingMode
	OutPutOrder	DecodingImageOutputsequence
	Compress	DecodingOutputImageWhethercanbeCompression
	VideoFormat	pendingDecodingImageDataFormat
	MaxVPS	Support VPS MaximumQuantity, onlyhas H.265 DecodingValid
	MaxSPS	Support SPS Quantityon
	MaxPPS	Support PPS Quantityon
	MaxSlice	SupportMaximumnumber
CHN PICTURE ATTR & PARAMS	ID	Decoding channel number
	Alpha	ARGB Format JPEG Imagefull alpha value
VDEC CHN PERFORMANCE	ID	Decoding channel number
	No.SendStreamPerSec	eachsecondsSendBitstreamFramenumber
	No.DecFramePerSec	eachsecondscompleteDecodingFramenumber
	HwDecTime	HardwareDecodingtime