提交數(shù)據(jù)：

GraphicBufferSource: submitBuffer_l 
-> mOMXNode->emptyBuffer (這里經(jīng)過(guò)一系列的封裝才能到OMXNodeInstance，不用深究)
    -> OMXNodeInstance::emptyBuffer // 此處有個(gè)bufferType不明確  ???
    -> Rockchip_OMX_EmptyThisBuffer  : Rockchip_OMX_Baseport.c
    -> 存入inputBufferQueue // pRockchipPort = &pRockchipComponent->pRockchipPort[INPUT_PORT_INDEX];
    -> 構(gòu)建一個(gè)消息 message = Rockchip_OSAL_Malloc(sizeof(ROCKCHIP_OMX_MESSAGE)); 
        message->messageType = ROCKCHIP_OMX_CommandEmptyBuffer;
        message->messageParam = (OMX_U32) i;
        message->pCmdData = (OMX_PTR)pBuffer;
    -> 把消息加入隊(duì)列  Rockchip_OSAL_Queue(&pRockchipPort->bufferQ, (void *)message);  // 此處的bufferQ對(duì)應(yīng)的InputBufferProcess
->>>> Rockchip_OMX_EmptyThisBuffer end
-> GraphicBufferSource: emptyGraphicBuffer succeeded
-> GraphicBufferSource: buffer submitted
-> OMXNodeInstance: onMessages

輸入線程：

Rkvpu_OMX_Venc.c: Rkvpu_OMX_InputProcessThread
循環(huán)
Rkvpu_InputBufferGetQueue : Rkvpu_OMX_VencControl.c
    ->Rockchip_OSAL_SemaphoreWait
->>>Rkvpu_InputBufferGetQueue end
-> Rkvpu_SendInputData
    //僅新建編碼器時(shí)執(zhí)行 begin
    -> Rockchip_OSAL_GetInfoFromMetaData : Rockchip_OSAL_Android.cpp
    -> Rockchip_OSAL_GetANBColorFormat
        -> Rockchip_get_gralloc_private : gralloc_priv_omx.cpp
            得到 priv_hnd.format: 0x1
    -> Rockchip_OSAL_Hal2OMXPixelFormat : Rockchip_OSAL_Android.cpp
        得到 ColorFormat: 0x10 這個(gè)format表示： OMX_COLOR_Format32bitARGB8888
    -> Rockchip_OSAL_OMX2HalPixelFormat(omx_format)
        通過(guò)上一步得到的ColorFormat，得到 halfFormat = HAL_PIXEL_FORMAT_RGBA_8888
    -> 設(shè)置p_vpu_ctx 中 rc_mode = 1，設(shè)置 encType為 VPU_H264ENC_RGB888
        p_vpu_ctx->control(p_vpu_ctx, VPU_API_ENC_GETCFG, (void*)&vpug);
        vpug.rc_mode = 1;
        p_vpu_ctx->control(p_vpu_ctx, VPU_API_ENC_SETCFG, (void*)&vpug);
        H264EncPictureType encType = VPU_H264ENC_RGB888;
        p_vpu_ctx->control(p_vpu_ctx, VPU_API_ENC_SETFORMAT, (void *)&encType);
    //--- 僅新建編碼器時(shí)執(zhí)行 end    
    -> Rkvpu_ProcessStoreMetaData
        -> Rockchip_OSAL_GetInfoRkWfdMetaData
        -> Rockchip_OSAL_GetInfoFromMetaData
        -> Rockchip_OSAL_GetANBColorFormat 得到 omx_format
        -> Rockchip_OSAL_OMX2HalPixelFormat(omx_format) 得到 pVideoEnc->bPixel_format
        -> 打開(kāi)GPU節(jié)點(diǎn)測(cè)試，如果存在則 pVideoEnc->bRgb2yuvFlag = OMX_TRUE;
            gpu_fd = open("/dev/pvrsrvkm", O_RDWR, 0);  //這里打開(kāi)節(jié)點(diǎn)接著關(guān)閉了，是測(cè)試是否可用的意思，并設(shè)置pVideoEnc->bRgb2yuvFlag，實(shí)際用的地方懷疑在libvpu.so中
            close(gpu_fd);
        -> Rockchip_OSAL_getANBHandle
        -> rga_rgb2nv12 : Rockchip_OSAL_RGA_Process.c
            -> rga_convert
            -> VPUMemClean : vpu_mem.c
                ioctl(vpm_vpu.fd, VPU_MEM_CACHE_CLEAN, &p->offset);
        ->>> rga_rgb2nv12 end  大約耗時(shí) 4ms
    ->>>   Rkvpu_ProcessStoreMetaData end  
    -> p_vpu_ctx->encoder_sendframe(p_vpu_ctx, &aInput);
    -> Rkvpu_InputBufferReturn
        -> Rkvpu_OMX_InputBufferReturn
            -> pRockchipComponent->pCallbacks->EmptyBufferDone(pOMXComponent, pRockchipComponent->callbackData, bufferHeader);
                -> OMXNodeInstance::OnEmptyBufferDone
                    -> 構(gòu)建message, type 為 omx_message::EMPTY_BUFFER_DONE，發(fā)送到消息處理線程去處理
                        -> bufferSource->onInputBufferEmptied
                            -> GraphicBufferSource::onInputBufferEmptied
                ->>>>> OMXNodeInstance::OnEmptyBufferDone end
        ->>>> Rkvpu_OMX_InputBufferReturn end  

輸出線程：

 
output線程：
Rkvpu_OMX_Venc.c: Rkvpu_OMX_OutputProcessThread
-> Rkvpu_OMX_OutputBufferProcess 消息處理循環(huán)
    -> Rkvpu_OutputBufferGetQueue(ROCKCHIP_OMX_BASECOMPONENT *pRockchipComponent)
        -> Rockchip_OSAL_Dequeue(&pRockchipPort->bufferQ)  //從bufferQ中取出一個(gè)消息
            emptyBuffer流程中queue的消息就是在這里被dequeue的
        -> 將dequeue出的msg中的數(shù)據(jù)，存入Rkvpu_OutputBufferGetQueue的參數(shù)中返回
    ->>>> Rkvpu_OutputBufferGetQueue end
-> Rkvpu_Post_OutputStream(OMX_COMPONENTTYPE *pOMXComponent)    
    -> p_vpu_ctx = pVideoEnc->vpu_ctx
    -> p_vpu_ctx->encoder_getstream(p_vpu_ctx, &pOutput) 
        該函數(shù)懷疑存在于 libvpu.so 中
    -> Rkvpu_OutputBufferReturn(pOMXComponent, outputUseBuffer); // Rkvpu_OMX_VencControl.c
        -> Rockchip_OMX_OutputBufferReturn(pOMXComponent, bufferHeader) //Rockchip_OMX_Baseport.c
            -> pRockchipComponent->pCallbacks->FillBufferDone(pOMXComponent, pRockchipComponent->callbackData, bufferHeader);
                    ->OMXNodeInstance::OnFillBufferDone