diff --git a/design/codec_hdi/adapt_hdi_2.0.md b/design/codec_hdi/adapt_hdi_2.0.md
index e78cdff57a83ecd0635aa634bfbd5a278eb44a6b..ae3b34057eafe51aa9bfff2890ed78c1ba5833c8 100644
--- a/design/codec_hdi/adapt_hdi_2.0.md
+++ b/design/codec_hdi/adapt_hdi_2.0.md
@@ -83,7 +83,7 @@ class CodecCapability {
 class PluginDef {
     incaps mime(h264)/bitrate
     outcaps mime(yuv)/bitrate
-    creator // CodecAdapter(name), name is CodecCapability name
+    creator // HdiAdapter(name), name is CodecCapability name
 }
 ```
 
@@ -92,7 +92,7 @@ class PluginDef {
 ```plantuml
 participant CodecFilter
 participant PluginManager
-participant CodecAdapter
+participant HdiAdapter
 box "HDI_Interface"
 participant ComponentManager
 participant Component
@@ -100,48 +100,46 @@ participant ComponentCallback
 end box
 
 PluginManager -> PluginManager : ctor
-PluginManager -> CodecAdapter : RegisterOneCodecPackage
-CodecAdapter -> PluginManager : AddPackage(PackageName)
-CodecAdapter -> ComponentManager : GetComponentManager 
-CodecAdapter -> ComponentManager : GetComponentNumber
-CodecAdapter -> ComponentManager : GetComponentCapabilityList
-CodecAdapter -> PluginManager : AddPlugin(PluginDef)
+PluginManager -> HdiAdapter : RegisterOneCodecPackage
+HdiAdapter -> PluginManager : AddPackage(PackageName)
+HdiAdapter -> ComponentManager : GetComponentManager 
+HdiAdapter -> ComponentManager : GetComponentNumber
+HdiAdapter -> ComponentManager : GetComponentCapabilityList
+HdiAdapter -> PluginManager : AddPlugin(PluginDef)
 CodecFilter -> CodecFilter : Prepare()
 CodecFilter -> CodecFilter : Negotiate()
-CodecFilter -> CodecAdapter : get plugin list for H264，CreatePlugin
-CodecAdapter -> CodecAdapter : ctor
-CodecFilter -> CodecAdapter : filter.Negotiate() : plugin -> Init()
-CodecAdapter -> Component : CreateComponent()
-CodecAdapter -> ComponentCallback : CreateComponentCallback()
-CodecAdapter -> Component : GetComponentVersion()
-CodecFilter -> CodecAdapter : filter.Configure() : plugin -> SetParameter()
-CodecAdapter -> CodecAdapter : save tag value used to config omx port
-CodecFilter -> CodecAdapter : filter.Configure() : plugin -> GetParameter()
-CodecAdapter -> Component : ConfigOmxPortDefine()
-CodecAdapter -> Component : get in buffer size and count from omx
-CodecAdapter -> Component : get out buffer size and count from omx
-CodecAdapter -> CodecFilter : send omx buffer count to filter
-CodecFilter -> CodecAdapter : filter.Configure() : plugin -> QueueOutputBuffer() // queue all output buffer down
-CodecFilter -> CodecAdapter : filter.Configure() : plugin -> Prepare()
-CodecAdapter -> Component : UseBufferOnInputPort(size, count) // allocate and use buffer
-CodecAdapter -> Component : UseBufferOnOutputPort(size, count) // allocate and use buffer
-CodecAdapter -> Component : set component status : OMX_StateIdle and wait callback
-CodecFilter -> CodecAdapter : filter.Configure() : plugin -> Start()
-CodecAdapter -> Component : set component status : OMX_StateExecuting
-CodecAdapter -> Component : FillAllTheBuffer() : for { FillThisBuffer() }
-CodecFilter -> CodecAdapter : filter.Configure() : start new thread : plugin -> QueueInputBuffer()
-CodecAdapter -> Component : translate plugin buffer to omx and EmptyThisBuffer()
-CodecAdapter -> CodecFilter : OnInputBufferDone()
-ComponentCallback -> CodecAdapter : callback : EmptyBufferDone( unUsedInBufferId_.push_back(buffer->bufferId) )
-ComponentCallback -> CodecAdapter : callback: FillBufferDone( translate omx buffer to plugin )
-CodecAdapter -> CodecFilter : OnOutputBufferDone()
-CodecFilter -> CodecAdapter : filter.Configure() : start new thread : plugin -> QueueOutputBuffer()
-CodecAdapter -> CodecAdapter : outBufferQ_.Push(outputBuffers)
+CodecFilter -> HdiAdapter : get plugin list for H264，CreatePlugin
+HdiAdapter -> HdiAdapter : ctor
+CodecFilter -> HdiAdapter : filter.Negotiate() : plugin -> Init()
+HdiAdapter -> Component : CreateComponent()
+HdiAdapter -> ComponentCallback : CreateComponentCallback()
+HdiAdapter -> Component : GetComponentVersion()
+CodecFilter -> HdiAdapter : filter.Configure() : plugin -> SetParameter()
+HdiAdapter -> HdiAdapter : save tag value used to config omx port
+CodecFilter -> HdiAdapter : filter.Configure() : plugin -> GetParameter()
+HdiAdapter -> Component : ConfigOmx()
+HdiAdapter -> Component : GetBufferInfoOnPort( get buffer size and count from omx )
+HdiAdapter -> CodecFilter : send omx buffer count and size to filter
+CodecFilter -> HdiAdapter : filter.Configure() : plugin -> QueueOutputBuffer() // queue all output buffer down
+HdiAdapter -> HdiAdapter : outBufferQ_.Push(outputBuffers)
+CodecFilter -> HdiAdapter : filter.Configure() : plugin -> Prepare()
+HdiAdapter -> Component : UseBufferOnInputPort(size, count) // allocate and use buffer
+HdiAdapter -> Component : UseBufferOnOutputPort(size, count) // allocate and use buffer
+HdiAdapter -> Component : set component status : OMX_StateIdle and wait callback
+CodecFilter -> HdiAdapter : filter.Configure() : plugin -> Start()
+HdiAdapter -> Component : set component status : OMX_StateExecuting
+HdiAdapter -> Component : FillAllTheBuffer() : for { FillThisBuffer() }
+CodecFilter -> HdiAdapter : filter.Configure() : start new thread : plugin -> QueueInputBuffer()
+HdiAdapter -> Component : translate PluginBuffer to OmxBuffer and call EmptyThisBuffer()
+HdiAdapter -> CodecFilter : OnInputBufferDone()
+ComponentCallback -> HdiAdapter : callback : EmptyBufferDone( unUsedInBufferId_.push_back(buffer->bufferId) )
+ComponentCallback -> HdiAdapter : callback: FillBufferDone( translate OmxBuf to PluginBuf, and send free outBuffer to HDI )
+HdiAdapter -> CodecFilter : OnOutputBufferDone()
 CodecFilter -> CodecFilter : Start()
-CodecFilter -> CodecAdapter : filter.Stop() : plugin -> Flush()
-CodecAdapter -> Component : SendCommand( OMX_CommandFlush )
-CodecFilter -> CodecAdapter : filter.Stop() : plugin -> Stop()
-CodecAdapter -> Component : SendCommand( OMX_StatePause )
+CodecFilter -> HdiAdapter : filter.Stop() : plugin -> Flush()
+HdiAdapter -> Component : Flush( SendCommand OMX_CommandFlush )
+CodecFilter -> HdiAdapter : filter.Stop() : plugin -> Stop()
+HdiAdapter -> Component : Stop( SendCommand OMX_StateIdle )
 ```
 
 ConfigOmxPortDefine()