使用mtk扩展的多帧降噪

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

@@ -29,6 +29,60 @@
 #include <LogThread.h>
 #include "DngCreator.h"
 
+#define MTK_MFBMODE_TAG "com.mediatek.mfbmode"
+#define MTK_MFNR_ENABLE_TAG "com.mediatek.3afeature.mfnrenable"
+
+#define MTK_VENDOR_TAG_SECTION          0x8000
+#define MTK_MFNR_FEATURE                4
+#define MTK_MFNR_FEATURE_START                  ((MTK_MFNR_FEATURE + MTK_VENDOR_TAG_SECTION) << 16)
+#define MTK_MFNR_FEATURE_MFB_MODE               MTK_MFNR_FEATURE_START
+#define MTK_MFNR_FEATURE_MFB_RESULT             (MTK_MFNR_FEATURE_START + 1)
+#define MTK_MFNR_FEATURE_AVAILABLE_MFB_MODES    (MTK_MFNR_FEATURE_START + 2)
+
+#define MTK_MFNR_FEATURE_MFB_AUTO       0xFF
+
+// #define MTK_3A_MFNR_ENABLE "com.mediatek.3afeature.mfnrenable"
+#define MTK_3A_MFNR_INTENSITY_TAG "com.mediatek.3afeature.mfnrintensity"
+
+void SetupMFNR(ACameraMetadata* characteristics, ACaptureRequest* request) {
+    // 1. 设置基础的相机参数
+    // ACaptureRequest_setEntry_i32(request, ACAMERA_CONTROL_MODE, 1, ACAMERA_CONTROL_MODE_AUTO);
+    camera_status_t status;
+
+#if 0
+    int32_t tagCount = 0;
+    const uint32_t* tags = nullptr;
+    ACameraMetadata_getAllTags(characteristics, &tagCount, &tags);
+    for (int32_t i = 0; i < tagCount; i++) {
+        if (MTK_MFNR_FEATURE_AVAILABLE_MFB_MODES == tags[i])
+        {
+            ALOGI("MTK_MFNR_FEATURE_AVAILABLE_MFB_MODES Tag ID: 0x%x\n", tags[i]);
+        }
+    }
+
+    ACameraMetadata_const_entry entry;
+    status = ACameraMetadata_getConstEntry(characteristics, MTK_MFNR_FEATURE_AVAILABLE_MFB_MODES, &entry);
+    if (status == ACAMERA_OK)
+    {
+        for (int i = 0; i < entry.count; i++)
+        {
+            ALOGI("MTK_MFNR_FEATURE_AVAILABLE_MFB_MODES: 0x%x\n", entry.data.i32[i]);
+        }
+    }
+#endif
+
+    uint8_t nrMode = ACAMERA_NOISE_REDUCTION_MODE_HIGH_QUALITY;
+    status = ACaptureRequest_setEntry_u8(request, ACAMERA_NOISE_REDUCTION_MODE, 1, &nrMode);
+
+    // 2. 设置 MediaTek 特定的 MFNR 参数
+    // 使用 vendor tag 描述符
+    int32_t mfbMode = MTK_MFNR_FEATURE_MFB_AUTO; // 1 Enable MFNR
+    status = ACaptureRequest_setEntry_i32(request, MTK_MFNR_FEATURE_MFB_MODE, 1, &mfbMode);
+    if (status == ACAMERA_OK)
+    {
+
+    }
+}
 
 void saveYuvToFile(AImage* image, const std::string& filePath) {
 
@@ -1805,11 +1859,16 @@ void NdkCamera::onCaptureCompleted(ACameraCaptureSession* session, ACaptureReque
 			for (int idx = 0; idx < burstCaptures; idx++)
 			{
                 CaptureRequest* request = CreateRequest(false);
+                if (m_params.burstRawCapture == 0 && m_params.customHdr != 0)
+                {
+                    SetupMFNR(mCharacteristics.get(), request->request);
+                }
                 mCaptureRequests.push_back(request);
 				// CopyPreviewRequest(mCaptureRequests[idx]->request, result);
 				requests.push_back(request->request);
 			}
 
+#if 0
 			if (m_params.customHdr && burstCaptures > 1)
 			{
 				int32_t hdrStep = m_params.hdrStep;
@@ -1850,6 +1909,7 @@ void NdkCamera::onCaptureCompleted(ACameraCaptureSession* session, ACaptureReque
                     }
                 }
 			}
+#endif
 
 			// ALOGW("Will Stop Repeating Request");
 			// status = ACameraCaptureSession_stopRepeating(capture_session);