Qcom Camx 打印实时Camera FPS

小驰行动派

发布于 2025-02-21 07:12:21

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代码可运行

文章被收录于专栏：Android Camera开发Android Camera开发

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代码可运行

一、第一种方式（有些低平台可能没有）

adb shell setprop persist.vendor.camera.enableFPSLog TRUE

adb shell setprop persist.vendor.camera.systemLogEnable TRUE

adb shell setprop vendor.debug.camera.overrideLogLevels 0xff

chi-cdk/core/chiframework/chxextensionmodule.cpp

CDKResult ExtensionModule::OverrideProcessRequest(
    const camera3_device_t*     camera3_device,
    camera3_capture_request_t*  pCaptureRequest,
    VOID*                       pPriv)
{
   if (TRUE == EnableFPSLog())
        {
            PrintCameraFPS(logicalCameraId);
        }

}

VOID ExtensionModule::PrintCameraFPS(
    UINT32 logicalCameraId)
{
    m_processCount[logicalCameraId]++;

    if ((m_processCount[logicalCameraId] % GetInstance()->GetUsecaseMaxFPS()) == 0)
    {
        struct timespec TEnd                = {0 , 0};
        FLOAT           cost_time           = 0;
        FLOAT           cost_time_from_prev = 0;

        clock_gettime(CLOCK_REALTIME, &TEnd);

        if (m_CameraWatcher[logicalCameraId].tv_nsec < TEnd.tv_nsec)
        {
            cost_time = (FLOAT)(TEnd.tv_sec - m_CameraWatcher[logicalCameraId].tv_sec - 1) +
                ((FLOAT)(1000000000 + TEnd.tv_nsec - m_CameraWatcher[logicalCameraId].tv_nsec)/1e9);

            cost_time_from_prev = (FLOAT)(TEnd.tv_sec -  m_CameraWatcher_prev[logicalCameraId].tv_sec - 1) +
                ((FLOAT)(1000000000 + TEnd.tv_nsec -  m_CameraWatcher_prev[logicalCameraId].tv_nsec)/1e9);
        }
        else
        {
            cost_time = (FLOAT)(TEnd.tv_sec - m_CameraWatcher[logicalCameraId].tv_sec) +
                ((FLOAT)(TEnd.tv_nsec - m_CameraWatcher[logicalCameraId].tv_nsec)/1e9);

            cost_time_from_prev = (FLOAT)(TEnd.tv_sec -  m_CameraWatcher_prev[logicalCameraId].tv_sec) +
                ((FLOAT)(TEnd.tv_nsec -  m_CameraWatcher_prev[logicalCameraId].tv_nsec)/1e9);
        }

        m_CameraWatcher_prev[logicalCameraId] = TEnd;

        FLOAT fps         = (FLOAT) ((FLOAT) m_processCount[logicalCameraId] / cost_time) * m_usecaseNumBatchedFrames;
        FLOAT current_fps = (FLOAT) ((FLOAT) ExtensionModule::GetInstance()->GetUsecaseMaxFPS() / cost_time_from_prev) * m_usecaseNumBatchedFrames;

        CHX_LOG_INFO("FRAME FPS %1.1f, average FPS %1.1f, frame count %d, time %1.1f, Max:%d, numBatchedFrames: %d",
                    current_fps,
                    fps,
                    m_processCount[logicalCameraId],
                    cost_time,
                    GetInstance()->GetUsecaseMaxFPS(),
                    m_usecaseNumBatchedFrames);
    }
    else if (m_processCount[logicalCameraId] == 1)
    {
        clock_gettime(CLOCK_REALTIME, &m_CameraWatcher[logicalCameraId]);
        m_CameraWatcher_prev[logicalCameraId] = m_CameraWatcher[logicalCameraId];
    }
}

二、第二种方式

adb shell setprop persist.vendor.camera.logPerfInfoMask 0x10000

adb shell setprop persist.vendor.camera.enableFPSLog TRUE

camx/src/core/camxsession.cpp

VOID Session::AdvanceMinExpectedResult()
{
    if (TRUE == m_pChiContext->GetStaticSettings()->enableFPSLog)
    {
        CalculateResultFPS();
    }
}

VOID Session::CalculateResultFPS()
{
    UINT64 currentTime = OsUtils::GetNanoSeconds();
    UINT64 elapsedTime;

    if (0 == m_lastFPSCountTime)
    {
        m_lastFPSCountTime  = currentTime;
        m_currentFrameCount = 0;
    }
    else
    {
        m_currentFrameCount++;
    }
    elapsedTime = currentTime - m_lastFPSCountTime;

    // Update FPS after 10 secs
    if (elapsedTime > (10 * NanoSecondsPerSecond))
    {
        FLOAT fps = (m_currentFrameCount * NanoSecondsPerSecond / static_cast<FLOAT> (elapsedTime));
        CAMX_LOG_PERF_INFO(CamxLogGroupCore, "FPS: %0.2f", fps);

        m_currentFrameCount = 0;
        m_lastFPSCountTime  = currentTime;
    }
}