[移动开发]Camera 自定义工具方法汇总

1、YUV相关的

1.1.自定义dump yuv方法：

//1.dump yuv方法
static int  requestId = 0;

if(property_get_int32("persist.vendor.camera.swfd.dump",0))
{
    CHAR    inputFilename[FILENAME_MAX];
    FILE*   pInputFileFD;
    OsUtils::SNPrintF(inputFilename, sizeof(inputFilename),
                      "%s%sfdtm%s_%llu_input_width_%d_height_%d_stride_%d_scanline_%d.yuv",
                      FileDumpPath,   PathSeparator,   NodeIdentifierString(),    requestId,
                      m_FDFrameWidth, m_FDFrameHeight, m_FDFrameStride,           m_FDFrameScanline);
    pInputFileFD  = OsUtils::FOpen(inputFilename, "wb");
    CAMX_LOG_ERROR(CamxLogGroupFD, "tzhanginput=%s (%p)", inputFilename, pInputFileFD);
    if (NULL != pInputFileFD)
    {
        OsUtils::FWrite(perFrameSettings->pImageAddress, m_FDFrameStride * m_FDFrameHeight, 1, pInputFileFD);

        OsUtils::FClose(pInputFileFD);
    } 
    //OsUtils::GetTime(&startTime);
    requestId ++;
}

//2.使用的时候打开开关
adb shell setprop  persist.vendor.camera.swfd.dump 1

1.2.高通 dump 相关的 yuv数据到data/vendor/camera/路径下

1).总开关

// 0 代表false  1 代表 true
adb shell setprop  persist.vendor.camera.autoImageDump 1

2.echo IFERegDumpMask=0x2 >> camxoverridesettings.txt

3.ps -ef |grep cam // 显示camera相关的进程

4.kill cam进程

adb shell killall android.hardware.camera.provider@2.4-service_64 cameraserver

5.打开Camera APK 自动dump 数据

6.具体配置文件如下：
src\settings\common\camxsettings.xml

<setting>
    <Name>Auto Output Image Dump Node/Port Mask</Name>
    <Help>
        Will limit dumps to only the specified nodes and ports when autoImageDump is enabled
        Uses ImageDumpType to define the flags
        No dumps                   = 0x0
        All output ports for IFE           = 0x1
        All output ports for IPE           = 0x2
        All output ports for BPS           = 0x4
        All JPEG output ports for all JPEG nodes   = 0x8
        All output ports for FDHw           = 0x10
        All output ports for LRME           = 0x20
        All output ports for RANSAC          = 0x40
        All output ports for all ChiNodes       = 0x80
        All output ports for CVP           = 0x100
        All other nodes not explicitly listed above  = 0x40000000
    </Help>
    <VariableName>autoImageDumpMask</VariableName>
    <VariableType>UINT</VariableType>
    <SetpropKey>persist.vendor.camera.autoImageDumpMask</SetpropKey>
    <DefaultValue>0x400001ff</DefaultValue>
    <Dynamic>FALSE</Dynamic>
</setting>

2.查看哪些应用连接camera：

adb logcat |grep -i "CameraService::connect call"  //查看api和camera id

3.看创建的pipeline：

3.1

// 命令：
adb logcat |grep -i "CreateDescriptor"
// 具体代码如下：
CDKResult Pipeline::CreateDescriptor()
{
    CHX_LOG_CONFIG("Pipeline[%s] pipeline pointer %p numInputs=%d, numOutputs=%d stream w x h: %d x %d",
            m_pPipelineName, this, pipelineCreateData.numInputs, pipelineCreateData.numOutputs,
            pipelineCreateData.pOutputDescriptors->pStream->width,
            pipelineCreateData.pOutputDescriptors->pStream->height);
}

3.2 查看pipeline、node和link

camxpipeline.cpp

"Topology: Creating Pipeline %s, numNodes %d isSensorInput %d isRealTime %d",    //查看pipeline和node数
"Topology::%s Node::%s Type %d numInputPorts %d numOutputPorts %d",
"Topology: Pipeline[%s] Link: Node::%s(outPort %d) --> (inPort %d) Node::%s using format %d"  //查看所有pipeline和link node

3.3 查看usecase相关信息

chxsensorselectmode.cpp

//1.查看最终选择的usecase（见底部SensorModeSelectUseCase）和sensormode以及modeIndex
"cameraId:%d, Selected Usecase: %d, SelectedMode W=%d, H=%d, FPS:%d, NumBatchedFrames:%d, modeIndex:%d"   
//2.最终选择的usecaseId
CHX_LOG_INFO("usecase ID:%d",usecaseId);  

4.显示mfnr、mfsr实际帧数：

adb root
adb shell setprop persist.debug.sf.showfps 1 
// 1.
adb logcat | findstr "PROFILE_PREVIEW_FRAMES_PER_SECOND"
// 2.
adb logcat |grep -iaE "num of rdi|FPS" // 需要修改

5.camera buffer 相关问题

5.1.异常log汇总：

Camera3-Stream: getBuffer: wait for output buffer return timed out after 8000ms (max_buffers 8)

5.2.具体代码：

status_t Camera3OutputStream::returnBufferCheckedLocked()
{
    // queueBufferToConsumer方法是否正常执行，判定流
    res = queueBufferToConsumer(currentConsumer, anwBuffer, anwReleaseFence, surface_ids);
    if (shouldLogError(res, state)) {
        ALOGE("%s: Stream %d: Error queueing buffer to native window:"
              " %s (%d)", __FUNCTION__, mId, strerror(-res), res);
    }  
}

6.camera streams 关键字

configure_streams|configureStreamsPerfLocked|

7.打印camera 堆栈信息关键字

1).顺着Pid(进程ID)、Tid(线程ID)、Uid(用户id)信息继续往下跟踪。

backtrace|signal|SIGSEG

2).查看cameraprovider是否重启

adb shell ps -ef |grep -i  cam

8.如何在log中打印FPS

1).首先从 /vendor/etc/camera/ 下面 pull 出camxoverridesettings.txt

adb pull /vendor/etc/camera/camxoverridesettings.txt

2).在该文件中添加如下两行：

enableFPSLog=TRUE
logPerfInfoMask=0xFFFFFFFF

3).再将camxoverridesettings.txt push到/vendor/etc/camera/，然后重启手机/重启provider进程。

4).在log中搜索 CalculateResultFPS 就能看到当时的帧率了：

CamX: camxsession.cpp CalculateResultFPS() FPS: 43.40

5).adb 命令也可以查看

adb logcat |grep -i "FPS"
adb logcat |grep "CalculateResultFPS"

9.打开高通log打印

adb shell setprop persist.vendor.camera.logInfoMask 0xFFFFFFFF //AF info level log
adb shell setprop persist.vendor.camera.logVerboseMask 0xFFFFFFFF //AF verbose level log
adb shell setprop persist.vendor.camera.logEntryExitMask 0xFFFFFFFF
adb shell setprop persist.vendor.camera.logWarningMask 0xFFFFFFFF
adb shell setprop persist.vendor.camera.logConfigMask 0xFFFFFFFF
adb shell setprop persist.vendor.camera.systemLogEnable TRUE
adb shell setprop persist.vendor.camera.logLogDRQMask 0xFFFFFFFF

10.打开chi log:

adb shell "echo overrideLogLevels=0x1f >> /vendor/etc/camera/camxoverridesettings.txt"
或：adb shell setprop vendor.debug.camera.overrideLogLevels 0x1F (camxsettings.xml中定义，不同的代码可能有区别)

11.打开ALOGV 打印功能

#undef NDEBUG // 打开LOGV/LOGI/LOGD
#define LOG_NDEBUG 0 // 打开LOGV
#define LOG_NIDEBUG 0 // 打开LOGI
#define LOG_NDDEBUG 0 // 打开LOGD
#define LOG_NEDEBUG 0 // 打开LOGE
#include <utils/Log.h>

12.camx 调试

修改\vendor\qcom\proprietary\camx\src\core\camxsettings.xml 设置 log 打印级别，如：

overrideLogLevels=0x1F
logInfoMask=0x40080
logVerboseMask=0x40000