相机功耗问题常用的拆解手法

和你一起终身学习,这里是程序员 Android

经典好文推荐,通过阅读本文,您将收获以下知识点:

一、硬件功耗
二、相机软件功耗
三、参考文档

一、硬件功耗

1.1 硬件信息

以下硬件信息最好提前获取到

模块 备注
平台 MTK or Qcom or sprd
CPU频率 大中小核
L2 Cache size CPU缓存
DDR DRAM 类型,品牌
屏幕 类型,品牌
相机Sensor 型号,出图size,帧率,几M

1.2 硬件功耗拆解

硬件电流一般需要使用功耗拆解板测试,使用功耗拆解版软件+工具 可以拆解详细硬件模块的功耗,数据格式如下:

模块 备注
0_BAT
1_BB CPU 功耗
2_MEMORY 内存
3_LCM
4_AUDIO 多媒体
5_CAMERA 相机
6_RF 射频
7_WIFI wifi
8_SENSOR 传感器
9_SIM SIM 卡
10_USB USB
11_PMU 电源管理单元
12_FLASH_LED 闪光灯

二、相机软件功耗

2.1 影响相机功耗的点

1.CPU 差异(MIPS百万指令每秒:可以准确的表现当时CPU的运算量)
2.Camera 模组差异
3.Camera APP 差异
4.Camera HAL 差异
5.Camera算法差异
6.PDAF差异
7.Camera Feature、SensorSize、RRZO Size、Camera FPS、P2 display size 、p2 preview callback size ,预览拍照 size 等差异

2.2 MTK 相机功耗拆解模板

2.3 功耗log关键字总结

Log 关键字

connect call|select size|MtkCam/StreamingPipe/Timer.*Frame timer|imgoDefaultRequest|prepareIORequest.*Outs|control.enableZsl|ZSL mode enable|feature=

log举例

 //1. com.android.camera  camera APP 调用的 API 2
 08-09 02:19:08.699   991  4433 I CameraService: CameraService::connect call (PID 4733 "com.android.camera", camera ID 0) and Camera API version 2
 //2. 模组setting size与fps:(4080x3072)@30
 //3. 模组Setting mode     :sensorMode:1 
 08-09 02:19:08.837  1056  2832 I mtkcam-SensorSettingPolicy4cell: select size(4080x3072)@30  sensorMode:1 hdrSensorMode:0 hdrHalMode:0 HfpsMode:0
 //4. IMGO :imgoDefaultRequest={ format:0x2201 4080x3072 }
 //5. RRZO :rrzoDefaultRequest={ format:0x2205 1440x1088 }
 08-09 02:19:08.838  1056  2832 I mtkcam-P1HwSettingPolicy: { .imgoAlloc={ format:0x2201 4080x3072 } .imgoDefaultRequest={ format:0x2201 4080x3072 } .imgoSeamlessRequest={ format:0 0x0 } .rrzoDefaultRequest={ format:0x2205 1440x1088 } .rssoSize=288x512 .pixelMode=2 .usingCamSV=0 }
 //6. ZSL mode : ZSL mode enable = 0 control.enableZsl:0 
 08-09 02:19:08.839  1056  2832 I mtkcam-PipelineModelSession4Cell: [configure] ZSL mode enable = 0
 08-09 02:19:08.893  1056  3615 I mtkcam-PipelineModelSession: [submitRequest] <4Cell/0> requestNo:0 { repeating:0 control.aeTargetFpsRange:5,30 control.captureIntent:1 control.enableZsl:0 control.processRawEn:0 control.mode:1 control.sceneMode:0 control.videoStabilizationMode:0 edge.mode:1 }
 08-09 02:19:08.900  1056  2835 I mtkcam-PipelineModelSession: [submitRequest] <4Cell/0> requestNo:1 { repeating:0 control.aeTargetFpsRange:5,30 control.captureIntent:1 control.enableZsl:0 control.processRawEn:0 control.mode:1 control.sceneMode:0 control.videoStabilizationMode:0 edge.mode:1 }
 //7. StreamFeature : feature=0x1008(TPI_YUV+3DNR)
 //8. Preview&&Display Callback: buf(0xb400007a589920d0/1)(1440x1080),tran(0),type(1), tar(disp)
 08-09 02:19:09.064  1056  5261 D MtkCam/StreamingPipe/Pipe: [prepareIORequest]P2S cam 0 MWFrame:#0 MWReq:#0, frame 1-1  master/slave/fd(0/-1/0) ReqNo(1), feature=0x1008(TPI_YUV+3DNR), cycle(33), fps(n/a)=(30/30), ZoomROI((1440.000000x1082.000000)@(0.000000,2.000000)) SFPIOMgr:[sID(0)--IMG(0x0/0),RRZ(0xb400007a589b6670/1),LCS(0xb400007a5898cc70/1),LCSH(0xb400007a589b4810/1),pRSS(0x0/0),cRSS(0x0/0),RSSR2(0x0/0),FYuv(0x0/0),RYuv1(0x0/0),RYuv2(0x0/0),mAIYuv(0x0/0),HalI(0xb4000079a8996c10),AppI(0xb4000079889a5ab8),AppDI(0xb4000079a898ff90),AppOver(0x0)]{path(GEN),halO(0xb40000798898d830),appO(0xb4000079889a7370),Outs--[buf(0xb400007a58994cb0/1)(640x480),tran(0),type(4), tar(fd), prof(0), crop(0.000000,2.000000,1440.000000x1082.000000), flag(0x3)][buf(0xb400007a589920d0/1)(1440x1080),tran(0),type(1), tar(disp), prof(0), crop(0.000000,2.000000,1440.000000x1082.000000), flag(0x3)][buf(0xb400007a58999930/1)(1440x1080),tran(0),type(3), tar(unknown), prof(0), crop(0.000000,2
 //9. HAL  FPS: [fps24.39/24.39/  5/ 30]
 08-09 02:19:09.090  1056  5256 D MtkCam/StreamingPipe/Timer: [print]Frame timer [#    1/   0][t  25][io   0][tof  0/  0][d  0/  0][mss  0/  0/  0/  0][a 14/  3/  9][tun  0/  0][msf  0/  0][vnr  0/  0/  0][am  0][b  0/  0][tpi(  3/  3)/(  0/  0)/(  0/  0)][vmdp_A  5/  0 vmdp_B  0/  0][h  0/  0/  0][e  0][r  0/  0][w_A  0/  0/  0/  0 w_B  0/  0/  0/  0][x  0][disp  0/  0][async  0/  0][p2sm  0/  0/  0][fps0.00/0.00/  5/ 30]
 08-09 02:19:09.131  1056  5256 D MtkCam/StreamingPipe/Timer: [print]Frame timer [#    2/   0][t  28][io   0][tof  0/  0][d  0/  0][mss  0/  0/  0/  0][a  9/  0/  8][tun  0/  0][msf  0/  0][vnr  0/  0/  0][am  0][b  0/  0][tpi(  7/  6)/(  0/  0)/(  0/  0)][vmdp_A  6/  0 vmdp_B  0/  0][h  0/  0/  0][e  0][r  0/  0][w_A  0/  0/  0/  0 w_B  0/  0/  0/  0][x  0][disp  0/  0][async  0/  0][p2sm  0/  0/  0][fps24.39/24.39/  5/ 30]

2.4 MTK Log 关键字详细拆解

2.4.1 开启MTK 更多log的方法

C:\Users\platform-tools>adb shell setprop persist.vendor.debug.camera.log 3

C:\Users\platform-tools>adb shell pkill camera*

C:\Users\platform-tools>adb logcat -c

2.4.2 SensorSize、SensorMode、FPS、RRZO、IMGO、相机API

log 关键字:

P1NodeImp.*check_config|select size|connect call|imgoDefaultRequest |P1::ENQ

Log 举例

  //1. com.android.camera  camera APP 调用的 API 2
 08-09 02:19:08.699   991  4433 I CameraService: CameraService::connect call (PID 4733 "com.android.camera", camera ID 0) and Camera API version 2
 //2. 模组setting size与fps:(4080x3072)@30
 //3. 模组Setting mode     :sensorMode:1 
 08-09 02:19:08.837  1056  2832 I mtkcam-SensorSettingPolicy4cell: select size(4080x3072)@30  sensorMode:1 hdrSensorMode:0 hdrHalMode:0 HfpsMode:0
 //4. IMGO :imgoDefaultRequest={ format:0x2201 4080x3072 }
 //5. RRZO :rrzoDefaultRequest={ format:0x2205 1440x1088 }
 08-09 02:19:08.838  1056  2832 I mtkcam-P1HwSettingPolicy: { .imgoAlloc={ format:0x2201 4080x3072 } .imgoDefaultRequest={ format:0x2201 4080x3072 } .imgoSeamlessRequest={ format:0 0x0 } .rrzoDefaultRequest={ format:0x2205 1440x1088 } .rssoSize=288x512 .pixelMode=2 .usingCamSV=0 }
 

2.4.3 ZSL 是否支持

log 关键字:

control.enableZsl|ZSL mode enable|connect call

log 举例

    行   468: 08-09 02:19:08.699   991  4433 I CameraService: CameraService::connect call (PID 4733 "com.android.camera", camera ID 0) and Camera API version 2
    行  1755: 08-09 02:19:08.839  1056  2832 I mtkcam-PipelineModelSession4Cell: [configure] ZSL mode enable = 0
    行  2580: 08-09 02:19:08.893  1056  3615 I mtkcam-PipelineModelSession: [submitRequest] <4Cell/0> requestNo:0 { repeating:0 control.aeTargetFpsRange:5,30 control.captureIntent:1 control.enableZsl:0 control.processRawEn:0 control.mode:1 control.sceneMode:0 control.videoStabilizationMode:0 edge.mode:1 }
    行  2657: 08-09 02:19:08.900  1056  2835 I mtkcam-PipelineModelSession: [submitRequest] <4Cell/0> requestNo:1 { repeating:0 control.aeTargetFpsRange:5,30 control.captureIntent:1 control.enableZsl:0 control.processRawEn:0 control.mode:1 control.sceneMode:0 control.videoStabilizationMode:0 edge.mode:1 }
    行  5566: 08-09 02:19:09.119  1056  3615 I mtkcam-PipelineModelSession: [submitRequest] <4Cell/0> requestNo:6 { repeating:0 control.aeTargetFpsRange:5,30 control.captureIntent:1 control.enableZsl:0 control.processRawEn:0 control.mode:1 control.sceneMode:0 control.videoStabilizationMode:0 edge.mode:1 }

MTK 备用 log 关键字:

MtkCam/ppl_context.*dump|ZslProc

能搜索到 ZslProc,或者image stream中看到provide 就标准支持zsl

Log 举例

 01-01 08:29:27.268390 12029 12029 I MtkCam/ZslProc: [ZslProcessor] mTimeSource(1) mFakeShutterNs(1522451160782)
 01-01 08:29:27.268910 12029 12029 I MtkCam/ZslProc: [configure] mCustomLibHandle(0x0) mpCustomSelector(0x0)
 01-01 08:29:27.275592 12029 12029 I MtkCam/ppl_context: [dump] <image streams>
 01-01 08:29:27.275647 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-APP-PROVIDER]0  960x720  OUT ImgFormat:0x1000(NV12) BufPlanes(strides/sizeInBytes):[ 960/691200 960/345600 ] startOffset:0 bufStep:0 t:0/r:0 maxBuffers:12 d/s:0x08c20000(V0_JFIF|STANDARD_BT601_625|TRANSFER_SMPTE_170M|RANGE_FULL) s0:d0:App:NV12:0|SW_READ_OFTEN|HW_TEXTURE AllocImgFormat:0x1000(NV12) AllocBufPlanes(strides/sizeInBytes):[ 960/691200 960/345600 ] Real:0x1000(NV12) Request:0x23(YCbCr_420_888) Override:0x23(YCbCr_420_888) Hal-Client-usage:0x103(0|SW_READ_OFTEN|HW_TEXTURE) Hal-usage:0x20033(0|SW_READ_OFTEN|SW_WRITE_OFTEN|HW_CAMERA_WRITE) HalStream::(consumer/producer)Usage:0/0x20033 0xb40000705fc4f480 phy:-1
 01-01 08:29:27.275684 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-APP-PROVIDER]0x1 4080x3072 OUT ImgFormat:0x11(NV21) BufPlanes(strides/sizeInBytes):[ 4096/12582912 4096/6297600 ] startOffset:0 bufStep:0 t:0/r:0 maxBuffers:12 d/s:0x08c20000(V0_JFIF|STANDARD_BT601_625|TRANSFER_SMPTE_170M|RANGE_FULL) s1:d0:App:YCrCb_420_SP:0|SW_READ_OFTEN AllocImgFormat:0x11(NV21) AllocBufPlanes(strides/sizeInBytes):[ 4096/12582912 4096/6297600 ] Real:0x11(YCrCb_420_SP) Request:0x23(YCbCr_420_888) Override:0x23(YCbCr_420_888) Hal-Client-usage:0x3(0|SW_READ_OFTEN) Hal-usage:0x20033(0|SW_READ_OFTEN|SW_WRITE_OFTEN|HW_CAMERA_WRITE) HalStream::(consumer/producer)Usage:0/0x20033 0xb40000705fc4f2c0 phy:-1
 01-01 08:29:27.275719 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-APP-PROVIDER]0x2 4080x3072 OUT ImgFormat:0x2201(BAYER10) BufPlanes(strides/sizeInBytes):[ 5120/15728640 ] startOffset:0 bufStep:0 t:0/r:0 maxBuffers:8 d/s:0x00000001(ARBITRARY) s2:d0:App:RAW10:0|SW_READ_OFTEN AllocImgFormat:0x21(BLOB) AllocBufPlanes(strides/sizeInBytes):[ 15728640/15728640 ] Real:0x25(RAW10) Request:0x25(RAW10) Override:0x25(RAW10) Hal-Client-usage:0x3(0|SW_READ_OFTEN) Hal-usage:0x20033(0|SW_READ_OFTEN|SW_WRITE_OFTEN|HW_CAMERA_WRITE) HalStream::(consumer/producer)Usage:0/0x20033 0xb40000705fc4f100 phy:-1
 01-01 08:29:27.275759 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-APP-PROVIDER]0x3 1280x720  OUT ImgFormat:0x32315659(YV12) BufPlanes(strides/sizeInBytes):[ 1280/921600 640/230400 640/263040 ] startOffset:0 bufStep:0 t:0/r:0 maxBuffers:12 d/s:0x08c20000(V0_JFIF|STANDARD_BT601_625|TRANSFER_SMPTE_170M|RANGE_FULL) s3:d0:App:YV12:0|SW_READ_OFTEN AllocImgFormat:0x32315659(YV12) AllocBufPlanes(strides/sizeInBytes):[ 1280/921600 640/230400 640/263040 ] Real:0x32315659(YV12) Request:0x32315659(YV12) Override:0x32315659(YV12) Hal-Client-usage:0x3(0|SW_READ_OFTEN) Hal-usage:0x20033(0|SW_READ_OFTEN|SW_WRITE_OFTEN|HW_CAMERA_WRITE) HalStream::(consumer/producer)Usage:0/0x20033 0xb40000705fc4ca80 phy:-1
 01-01 08:29:27.275797 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-APP-PROVIDER]0x4 2560x1920 OUT ImgFormat:0x32315659(YV12) BufPlanes(strides/sizeInBytes):[ 2560/4915200 1280/1228800 1280/1232640 ] startOffset:0 bufStep:0 t:0/r:0 maxBuffers:12 d/s:0x08c20000(V0_JFIF|STANDARD_BT601_625|TRANSFER_SMPTE_170M|RANGE_FULL) s4:d0:App:YV12:0|SW_READ_OFTEN AllocImgFormat:0x32315659(YV12) AllocBufPlanes(strides/sizeInBytes):[ 2560/4915200 1280/1228800 1280/1232640 ] Real:0x32315659(YV12) Request:0x32315659(YV12) Override:0x32315659(YV12) Hal-Client-usage:0x3(0|SW_READ_OFTEN) Hal-usage:0x20033(0|SW_READ_OFTEN|SW_WRITE_OFTEN|HW_CAMERA_WRITE) HalStream::(consumer/producer)Usage:0/0x20033 0xb40000705fc4c700 phy:-1
 01-01 08:29:27.275831 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-HAL-POOL    ]0x100000001 4080x3072 ImgFormat:0x2201(BAYER10) BufPlanes(strides/sizeInBytes):[ 5104/15679488 ] startOffset:0 bufStep:0 t:0 maxBufNum:10 minInitBufNum:0 Hal:Image:P1:Fullraw_main1 AllocImgFormat:0x21(BLOB) AllocBufPlanes(strides/sizeInBytes):[ 15679488/15679488 ] Private{exist?0 id:0}
 01-01 08:29:27.275855 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-HAL-POOL    ]0x100000003 1280x976  ImgFormat:0x2205(FG_BAYER10) BufPlanes(strides/sizeInBytes):[ 2400/2342400 ] startOffset:0 bufStep:0 t:0 maxBufNum:12 minInitBufNum:0 Hal:Image:P1:Resizeraw_main1 AllocImgFormat:0x2205(FG_BAYER10) AllocBufPlanes(strides/sizeInBytes):[ 2400/2342400 ] Private{exist?0 id:0}
 01-01 08:29:27.275879 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-HAL-POOL    ]0x100000004 696696x1    ImgFormat:0x21(BLOB) BufPlanes(strides/sizeInBytes):[ 696696/696696 ] startOffset:0 bufStep:0 t:0 maxBufNum:12 minInitBufNum:1 Hal:Image:STT_main1 AllocImgFormat:0x21(BLOB) AllocBufPlanes(strides/sizeInBytes):[ 696696/696696 ] Private{exist?1 id:2}
 01-01 08:29:27.275903 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-HAL-POOL    ]0x100000005  288x512  ImgFormat:0x2400(STA_BYTE) BufPlanes(strides/sizeInBytes):[ 288/147456 ] startOffset:0 bufStep:0 t:0 maxBufNum:7 minInitBufNum:1 Hal:Image:RSSO_main1 AllocImgFormat:0x2400(STA_BYTE) AllocBufPlanes(strides/sizeInBytes):[ 288/147456 ] Private{exist?0 id:0}
 01-01 08:29:27.275927 12029 12029 I MtkCam/ppl_context: [dump]     [IMAGE-HAL-POOL    ]0x100000014  640x488  ImgFormat:0x14(YUY2) BufPlanes(strides/sizeInBytes):[ 1280/624640 ] startOffset:0 bufStep:0 t:0 maxBufNum:5 minInitBufNum:1 Hal:Image:P1FDYuv_main1 AllocImgFormat:0x14(YUY2) AllocBufPlanes(strides/sizeInBytes):[ 1280/624640 ] Private{exist?0 id:0}
    

2.4.4 Feature && Display Callback size

log 关键字:

prepareIORequest

Log 举例

 //7. StreamFeature : feature=0x1008(TPI_YUV+3DNR)
 //8. Preview&&Display Callback: buf(0xb400007a589920d0/1)(1440x1080),tran(0),type(1), tar(disp)
 08-09 02:19:09.064  1056  5261 D MtkCam/StreamingPipe/Pipe: [prepareIORequest]P2S cam 0 MWFrame:#0 MWReq:#0, frame 1-1  master/slave/fd(0/-1/0) ReqNo(1), 
 feature=0x1008(TPI_YUV+3DNR), 
 cycle(33), fps(n/a)=(30/30), ZoomROI((1440.000000x1082.000000)@(0.000000,2.000000)) SFPIOMgr:[sID(0)--IMG(0x0/0),RRZ(0xb400007a589b6670/1),LCS(0xb400007a5898cc70/1),LCSH(0xb400007a589b4810/1),pRSS(0x0/0),cRSS(0x0/0),RSSR2(0x0/0),FYuv(0x0/0),RYuv1(0x0/0),RYuv2(0x0/0),mAIYuv(0x0/0),HalI(0xb4000079a8996c10),AppI(0xb4000079889a5ab8),AppDI(0xb4000079a898ff90),AppOver(0x0)]{path(GEN),halO(0xb40000798898d830),appO(0xb4000079889a7370),Outs--[buf(0xb400007a58994cb0/1)(640x480),tran(0),type(4), tar(fd), prof(0), crop(0.000000,2.000000,1440.000000x1082.000000), flag(0x3)]
 [buf(0xb400007a589920d0/1)(1440x1080),tran(0),type(1), tar(disp), prof(0), crop(0.000000,2.000000,1440.000000x1082.000000), flag(0x3)]
 [buf(0xb400007a58999930/1)(1440x1080),tran(0),type(3), tar(unknown), prof(0),  
    

2.4.5 Camera HAL 出图帧率

log关键字

MtkCam/StreamingPipe/Timer.*Frame timer|connect call

 //9. HAL  FPS: [fps24.39/24.39/  5/ 30]
 08-09 02:19:09.090  1056  5256 D MtkCam/StreamingPipe/Timer: [print]Frame timer [#    1/   0][t  25][io   0][tof  0/  0][d  0/  0][mss  0/  0/  0/  0][a 14/  3/  9][tun  0/  0][msf  0/  0][vnr  0/  0/  0][am  0][b  0/  0][tpi(  3/  3)/(  0/  0)/(  0/  0)][vmdp_A  5/  0 vmdp_B  0/  0][h  0/  0/  0][e  0][r  0/  0][w_A  0/  0/  0/  0 w_B  0/  0/  0/  0][x  0][disp  0/  0][async  0/  0][p2sm  0/  0/  0][fps0.00/0.00/  5/ 30]
 08-09 02:19:09.131  1056  5256 D MtkCam/StreamingPipe/Timer: [print]Frame timer [#    2/   0][t  28][io   0][tof  0/  0][d  0/  0][mss  0/  0/  0/  0][a  9/  0/  8][tun  0/  0][msf  0/  0][vnr  0/  0/  0][am  0][b  0/  0][tpi(  7/  6)/(  0/  0)/(  0/  0)][vmdp_A  6/  0 vmdp_B  0/  0][h  0/  0/  0][e  0][r  0/  0][w_A  0/  0/  0/  0 w_B  0/  0/  0/  0][x  0][disp  0/  0][async  0/  0][p2sm  0/  0/  0]
[fps24.39/24.39/  5/ 30]

2.5 Callback AP Path

这个一般需要通过抓取 trace 来分析


拆解表格举例

后置照片预览 Sensor size/FPS sensor mode HAL FPS P1 RRZO P1 IMGO P2-MDP Display Callback P2-MDP Preivew Callback ZSD ON/OFF Streaming Feature Callback AP Path 备注
测试机 (4080x3072)@30 1 25 1440x1088 4080x3072 1440x1080 1440x1080 OFF TPI_YUV+3DNR SurfaceTexture -
对比机

三、参考文档

MTK相机功耗优化
【腾讯文档】Camera学习知识库
https://docs.qq.com/doc/DSWZ6dUlNemtUWndv

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