对于需要曝光补偿的场景，设置更明亮模式

app/src/main/cpp/CMakeLists.txt

@@ -21,7 +21,7 @@ if(ANDROID_ABI STREQUAL "armeabi-v7a")
     add_definitions(-DUSING_N938)
 elseif(ANDROID_ABI STREQUAL "arm64-v8a")
     # add_definitions(-DUSING_N938)
-    add_definitions(-DUSING_PTZ)
+    # add_definitions(-DUSING_PTZ)
 endif()
 
 # OUTPUT_DBG_INFO: 输出调试相关信息

app/src/main/cpp/camera2/ndkcamera.cpp

@@ -2483,6 +2483,7 @@ void NdkCamera::EnumCameraResult(ACameraMetadata* result, CAPTURE_RESULT& captur
     status = ACameraMetadata_getConstEntry(result, ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION, &val);
 	captureResult.compensation = (status == ACAMERA_OK) ? *(val.data.i32) : 0;
 
+    val = {0};
     status = ACameraMetadata_getConstEntry(result, MTK_HDR_FEATURE_HDR_DETECTION_RESULT, &val);
     ALOGI("HDR Detection Result: %d", val.data.i32[0]);
 
@@ -2743,7 +2744,7 @@ void NdkCamera::SetupHDR(ACameraMetadata* characteristics, ACaptureRequest* requ
     }
 
 
-    int32_t hdrMode = MTK_HDR_FEATURE_HDR_MODE_ON; // 1 Enable HDR
+    int32_t hdrMode = MTK_HDR_FEATURE_HDR_MODE_AUTO; // 1 Enable HDR
     ALOGI("Try to set MTK_HDR_FEATURE_HDR_MODE = %d", hdrMode);
     status = ACaptureRequest_setEntry_i32(request, MTK_HDR_FEATURE_HDR_MODE, 1, &hdrMode);
     if (status != ACAMERA_OK)
@@ -2758,8 +2759,7 @@ void NdkCamera::SetupHDR(ACameraMetadata* characteristics, ACaptureRequest* requ
         ALOGE("Failed to set MTK_HDR_FEATURE_HDR_HAL_MODE, status: %d", status);
     }
 
-
-    // int32_t ispTuning = (mfbMode != 0) ? MTK_CONTROL_CAPTURE_HINT_FOR_ISP_TUNING_MFNR : MTK_CONTROL_CAPTURE_HINT_FOR_ISP_TUNING_DEFAULT_NONE;
+    // int32_t ispTuning = MTK_CONTROL_CAPTURE_HINT_FOR_ISP_TUNING_AIHDR;
     // status = ACaptureRequest_setEntry_i32(request, MTK_CONTROL_CAPTURE_HINT_FOR_ISP_TUNING, 1, &ispTuning);
 
     uint8_t reqRemosaicEnable = 1;
@@ -2769,24 +2769,50 @@ void NdkCamera::SetupHDR(ACameraMetadata* characteristics, ACaptureRequest* requ
         ALOGE("Failed to set MTK_HAL_REQUEST_REMOSAIC_ENABLE, status: %d", status);
     }
 
-    if (m_params.compensation != 0)
-    {
-        int32_t compensation = m_params.compensation;
-        status = ACaptureRequest_setEntry_i32(request, MTK_CONTROL_AE_EXPOSURE_COMPENSATION, 1, &compensation);
-        if (status != ACAMERA_OK)
-        {
-            ALOGE("Failed to set MTK_CONTROL_AE_EXPOSURE_COMPENSATION, status: %d", status);
-        }
-    }
-
     // 设置HDR的AE目标模式
     int32_t aeTargetMode = MTK_3A_FEATURE_AE_TARGET_MODE_NORMAL;
     status = ACaptureRequest_setEntry_i32(request, MTK_3A_FEATURE_AE_TARGET_MODE, 1, &aeTargetMode);
 
-// 设置更高的曝光等级
+    // 设置更高的曝光等级
     int32_t exposureLevel = MTK_3A_FEATURE_AE_EXPOSURE_LEVEL_LONG; // 选择长曝光模式
     status = ACaptureRequest_setEntry_i32(request, MTK_3A_FEATURE_AE_EXPOSURE_LEVEL, 1, &exposureLevel);
 
+    int32_t hdrModeParam = 1; // 偏向于亮部
+    status = ACaptureRequest_setEntry_i32(request, MTK_3A_HDR_MODE, 1, &hdrModeParam);
+
+    if ((aeCompensationRange.min_ != 0 || aeCompensationRange.max_ != 0) && m_params.compensation != 0)
+    {
+        int32_t compensation = m_params.compensation;
+        if (compensation < aeCompensationRange.min_)
+        {
+            compensation = aeCompensationRange.min_;
+        }
+        if (compensation > aeCompensationRange.max_)
+        {
+            compensation = aeCompensationRange.max_;
+        }
+        ACaptureRequest_setEntry_i32(request, MTK_CONTROL_AE_EXPOSURE_COMPENSATION, 1, &compensation);
+
+        if (compensation > 0)
+        {
+            // 调整HDR混合ISO模式，优化暗部
+            int32_t hdrMixedIso = 1; // 启用混合ISO
+            status = ACaptureRequest_setEntry_i32(request, MTK_3A_AE_HDR_MIXED_ISO, 1, &hdrMixedIso);
+
+            // 降低高光恢复强度，允许更多过曝 - 这个设置没有问题
+            float hlrRatio = 0.3f;
+            status = ACaptureRequest_setEntry_float(request, MTK_ISP_HLR_RATIO, 1, &hlrRatio);
+
+            int32_t aeTargetMode = MTK_3A_FEATURE_AE_TARGET_MODE_MSTREAM_VHDR; // 多帧HDR模式
+            status = ACaptureRequest_setEntry_i32(request, MTK_3A_FEATURE_AE_TARGET_MODE, 1, &aeTargetMode);
+
+            int32_t ispBrightness = MTK_CONTROL_ISP_BRIGHTNESS_HIGH; // 范围通常是0-10，值越大越亮
+            status = ACaptureRequest_setEntry_i32(request, MTK_CONTROL_ISP_BRIGHTNESS, 1, &ispBrightness);
+
+        }
+    }
+
+
     int aa = 0;
 }