问题记录

SOC：RK3568

system：Android12

流行应用 一些APP通过打开板载摄像头出现画面裁剪 画面比例不正常或者是预览方向旋转，但是使用相机APP打开却不会

修改：

hardware\interfaces\camera\device\3.4\default\RgaCropScale.cpp

int RgaCropScale::rga_scale_crop(int src_width, int src_height,unsigned long src_fd, int src_format,unsigned long dst_fd,int dst_width, int dst_height,int zoom_val, int mirror,bool flipH, bool flipV, bool isNeedCrop,bool isDstNV21, bool is16Align, bool isYuyvFormat)
{...           src.rotation = 0;if (mirror == 90)src.rotation = HAL_TRANSFORM_ROT_90;else if(mirror == 180)src.rotation = HAL_TRANSFORM_ROT_180;else if(mirror == 270)src.rotation = HAL_TRANSFORM_ROT_270;...}

修改src.rotation赋值：

旋转：

HAL_TRANSFORM_ROT_90;

HAL_TRANSFORM_ROT_180;

HAL_TRANSFORM_ROT_270

镜像：

HAL_TRANSFORM_FLIP_H

HAL_TRANSFORM_FLIP_V

上面修改会影响系统相机画面，添加判断哪个app打开摄像头

frameworks/av/services/camera/libcameraservice/common/Camera2ClientBase.cpp

template <typename TClientBase>
Camera2ClientBase<TClientBase>::Camera2ClientBase(const sp<CameraService>& cameraService,const sp<TCamCallbacks>& remoteCallback,const String16& clientPackageName,const std::optional<String16>& clientFeatureId,const String8& cameraId,int api1CameraId,int cameraFacing,int sensorOrientation,int clientPid,uid_t clientUid,int servicePid,bool overrideForPerfClass,bool legacyClient):TClientBase(cameraService, remoteCallback, clientPackageName, clientFeatureId,cameraId, api1CameraId, cameraFacing, sensorOrientation, clientPid, clientUid,servicePid),mSharedCameraCallbacks(remoteCallback),mDeviceVersion(cameraService->getDeviceVersion(TClientBase::mCameraIdStr)),mDevice(new Camera3Device(cameraId, overrideForPerfClass, legacyClient)),mDeviceActive(false), mApi1CameraId(api1CameraId)
{ALOGI("Camera %s: Opened. Client: %s (PID %d, UID %d)", cameraId.string(),String8(clientPackageName).string(), clientPid, clientUid);++         int iCameraIDatoi = atoi(cameraId.string());
++         if(iCameraIDatoi == 0 || iCameraIDatoi == 1){++__system_property_set("persist.camera.openCameraAPP",String8(clientPackageName).string());
++  }mInitialClientPid = clientPid;LOG_ALWAYS_FATAL_IF(mDevice == 0, "Device should never be NULL here.");
}

hardware\interfaces\camera\device\3.4\default\RgaCropScale.cpp

++#include <cutils/properties.h>int RgaCropScale::rga_scale_crop(int src_width, int src_height,unsigned long src_fd, int src_format,unsigned long dst_fd,int dst_width, int dst_height,int zoom_val, int mirror,bool flipH, bool flipV, bool isNeedCrop,bool isDstNV21, bool is16Align, bool isYuyvFormat)
{...           
--    src.rotation = 0;
--    if (mirror == 90)
--        src.rotation = HAL_TRANSFORM_ROT_90;
--    else if(mirror == 180)
--        src.rotation = HAL_TRANSFORM_ROT_180;
--    else if(mirror == 270)
--        src.rotation = HAL_TRANSFORM_ROT_270;++    char CameraAPP[128];
++    __system_property_get("persist.camera.openCameraAPP",CameraAPP);
++    if(strcmp(CameraAPP,"tv.danmaku.bili") == 0 ){
++        src.rotation = HAL_TRANSFORM_ROT_90;
++    }...}