【Camera专题】Qcom-你应该掌握的Camera调试技巧2
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【Camera专题】Qcom-你应该掌握的Camera调试技巧1
【Camera专题】Qcom-你应该掌握的Camera调试技巧2
数量：
adb shell setprop persist.vendor.camera.isp.dump_cnt 20
增加性能日志：Tag：[KPI_CAMERA]
日志打印：
kernel/arch/arm/boot/dts/qcom/msm8909.dtsi
I2C资料：80-NU767-1，参考68-69页
举个例子：
i2c速率（I2C_FS_CLK ）：400k
I2C_CLK：24M
占空比改成：50%
I2C_FS_CLK = I2C_CLK/(fs_div+hs_div+6)
fs_div + hs_div = 24M/400k - 6 = 60-6=54
如果占空比为50%
则
fs_div=hs_div=54/2=27
kernel/arch/arm/boot/dts/qcom/msm8909.dtsi
I2C节点解释：
kernel/Documentation/devicetree/bindings/i2c/i2c-msm-v2.txt
git diff > a.patch
patch -p1 < a.patch
查看pd lib库
adb shell setprop persist.vendor.camera.pdaf_logging 1
then reset device. version will be print out like "PDLib Version: Major: %d Minor: %d Revision: %d"
lib库和校准工具对应关系
PD_lib_version Calibration_Version
3.3 J
4.2 J,L3
4.4 J,L3
4.5 J,L3,L4
4.6 J,L3,L4
4.7 J,L3,L4
5.0 L3,L4
5.1 L3,L4
5.2 L3,L4
5.3 L3,L4
关键log
注意，如果pdaf版本库在4.5-5.3之间，OV的sensor left map和right map 和高通是相反的
即：
op_pixel_clk = (传感器总数据传输速率) / 每个像素的位数
op_pixel_clk = sensor_MIPI_speed*lanes/每个像素的位数
传感器总数据传输速率 = sensor_MIPI_speed*lanes
vt_pixel_clk= HTS（0x380c/0x380d）* VTS(0x380e/0x380f)*FPS
op_pixel_clk=sensor_MIPI_speed*lanes/bits-per-pixel
adb shell dumpsys window | findstr mCurrentFocus
adb shell dmesg > kernel.log
1.对焦速度 af_haf_util_end_search
adb root
adb shell setprop persist.vendor.camera.stats.is.debug 5
关键log: eis2_process
经过odex 的apk ，这样apk 是不完整的。
相机 mk 里加上 LOCAL_DEX_PREOPT := false
module_sensor_load_chromatix_stream_on
1.最终的 AF ROI 坐标和大小，如何从 log 中获取？
key word:
0.200000f, /* H Clip Ratio Normal Light /
0.200000f, / V Clip Ratio Normal Light /
0.500000f, / H Clip Ratio Lowlight /
0.500000f, / V Clip Ratio Lowlight */
1、请问 Calculated new ROI 的大小是怎么计算的？
ctr_x = image_width / 2;
ctr_y = image_height / 2;
dx = image_width * h_ratio * zoom_factor;
dy = image_height * v_ratio * zoom_factor;
x = ctr_x < (roi_out->dx / 2) ? 0 : (ctr_x - (roi_out->dx / 2));
y = ctr_y < (roi_out->dy / 2) ? 0 : (ctr_y - (roi_out->dy / 2));
2、假设 CAF 默认以中心为 ROI，那么 APP 有接口可以修改 ROI 的位置吗？
As you can see from 1(formula), no parameters are passed to change this value.
adb shell setprop persist.vendor.camera.cal.dump 1
数据路径："/data/misc/camera/" 或者"/data/vendor/camera/"
8909：
新:
1.开机log里面搜索fdt
OF: fdt:Machine model: Qualcomm Technologies, Inc. SDM429 QRD Spyro DVT Overlay
2.搜索"Qualcomm Technologies, Inc. SDM429 QRD Spyro DVT Overlay"
3.打开kernel/msm-4.9/arch/arm64/boot/dts/qcom/sdm429-spyro-qrd-dvt-overlay.dts
adb shell debuggerd -b <camera process PID>
persist.vendor.debug.set.fixedfps
adb logcat -c && adb logcat -G 256M && adb logcat -v threadtime -b main -b crash -b kernel 1 > log.txt
aec_settle
ISO = (analog_gain*100)/ISO_100_gain。
效果参数中 ISO_100_gain =1
adb shell dumpsys media.camera
adb shell setprop persist.vendor.camera.HAL3.enabled 1
当我们用mmm编译时，可能找不到某些依赖，又不想又mmma编译。
比如：
mmm packages/apps/Camera2
再编译 mmm packages/apps/Camera2
<uses-feature android:name="android.hardware.type.watch" />
adb shell input keyevent 27
//拍照键
关键字：alg_status
01-02 09:02:12.920 235 2894 D ae_lib : 2429, ae1_calculateEX: alg_status:146 stab: 0, status: 0, flicker: 0, fps: 1.07, effect-(s 34464(0.935698s), g 128, dmy 0), final to sensor: idx: 271, (3683(0.099993s), 0, 581), cur_lum: 133, bv:520, tar_lum [62, 66]
adb shell stop media
adb shell start media
adb shell stop cameraserver
adb shell kill -9 进程ID
frameworks/av/services/camera/libcameraservice/CameraService.cpp
hardware/qcom/camera/QCamera2/HAL/QCamera2HWICallbacks.cpp
typedef int64_t nsecs_t;
例如：
kernel/drivers/misc/sprd_camera/dcam/dcam_if_r4p0/dcam_ioctrl.
要在makefile中添加你要的调用的路径
adb root
adb shell
读： lookat -l 1 0x40388D2C
写： lookat -s 0x00000081 0x40388D2C
frameworks/av/camera/CameraParameters.cpp
adb shell setprop debug.camera.mf 2
adb shell setprop debug.camera.mf_pos 100
#define VAR_UNUSED(x) (void)(x)
原因：
so后面多了个空格，吐血了！！！
删掉空格后就ok了：
hardware/qcom/camera/QCamera2/HAL/test
vendor/bin/dual_camera_test
kernel/msm-4.9/arch/arm64/boot/dts/qcom/msm8937-pinctrl.dtsi
kernel/msm-4.9/arch/arm64/boot/dts/qcom/sdm429-spyro-qrd-evt-camera.dtsi
绛旓細frameworks/av/services/camera/libcameraservice/CameraService.cpp hardware/qcom/camera/QCamera2/HAL/QCamera2HWICallbacks.cpp typedef int64_t nsecs_t;渚嬪锛 kernel/drivers/misc/sprd_camera/dcam/dcam_if_r4p0/dcam_ioctrl. 瑕佸湪makefile涓坊鍔犱綘瑕佺殑璋冪敤鐨勮矾寰 adb root adb shell ...
绛旓細hardware/qcom/camera/QCamera2/HAL/QCamera2HWICallbacks.cpp 鍦ㄥ洖璋冨嚱鏁癿etadata_stream_cb_routine涓紝鐩稿叧鏁版嵁鏄氳繃IF_META_AVAILABLE瀹忔潵璧嬪肩殑銆 鍏跺畯瀹氫箟濡備笅锛氫緥濡傛垜浠笂闈㈣幏鍙栫殑3A淇℃伅灏卞畾涔夊湪缁撴瀯浣 cam_3a_params_t INCLUDE(CAM_INTF_META_AEC_INFO, cam_3a_params_t, 1);
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绛旓細01.void CameraService::onFirstRef() 02.{ 03. BnCameraService::onFirstRef(); 04. 05. <SPAN style="COLOR: #ff0000">if (hw_get_module(CAMERA_HARDWARE_MODULE_ID, 06. (const hw_module_t **)&mModule) < 0)</SPAN> { 07. LOGE("Could not load camera HAL module"); 08. mNumberOf...
绛旓細鍦ㄤ换鎰忔椂闂达紝姣忎釜Virtual Camera澶勪簬涓嬪垪鐨勭姸鎬佷箣涓锛歋olo 锛氱敤浜庤皟璇曘傞変腑杩欎釜鎸夐挳鏃讹紝姝よ櫄鎷熺浉鏈轰細鐩存帴鎺у埗Unity鐩告満鏄剧ず鍦℅ame绐楀彛涓紝鐢ㄤ簬鐩告満鐨勮皟璇曘傦紙蹇界暐浼樺厛绾э紝浣嗘槸闇瑕佹墍鍦℅ameOjbect鏄縺娲荤姸鎬侊級Game Window Guides 锛氬嬀閫夋椂锛孏ame绐楀彛浼氭樉绀鸿緟鍔╃嚎锛岀敤浜庤缃櫄鎷熺浉鏈虹殑鍚勪釜灞炴с傞渶瑕佹敞鎰忕殑鏄紝浠...
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