[CamX] Request调试技巧

HAL3架构下，不管是预览、拍照还是录像，上层都是送CaptureRequest给HAL，里面包含了参数和接收Image Buffer的handle，本文总结CaptureRequest一些常用的调试技巧。

CaptureRequest包含几个Output Buffer

搜索 Original framework framenumber:

Original framework framenumber

打印Log的代码如下：

CAMX_LOG_INFO(CamxLogGroupHAL,
              "CHIModule: Original framework framenumber %d contains %d output buffers",
              pRequest->frameworkFrameNum,
              pRequest->numOutputBuffers);

Log如下：

CaptureRequest选用哪个FeatureGraph, SelectFeatureGraphforRequestFromTable

搜索 SelectFeatureGraphforRequestFromTable:

SelectFeatureGraphforRequestFromTable

打印Log的代码如下，建议将FW的FrameNumber也打印出来：

appFrameNum = pFeature2RequestObject->GetAppFrameNumber();
CHX_LOG_INFO("appFrameNum %d",appFrameNum);

// ......

CHX_LOG_INFO("Feature2Mapping: Selected feature graph : %s", pChiFeature2GraphDesc->pFeatureGraphName);

Log如下：

查看Feature Graph为每个Feature申请的request个数

查看Feature Graph为每个Feature申请的request个数，搜索

InitializeRequestInfo

Log如下：