Android MTK HAL算法集成之单帧算法_mtk 第三方算法

最新推荐文章于 2025-03-20 07:55:35 发布

2401_84010176

最新推荐文章于 2025-03-20 07:55:35 发布

阅读量880

点赞数 8

分类专栏：程序员文章标签： android

本文链接：https://blog.youkuaiyun.com/2401_84010176/article/details/138776604

版权

程序员专栏收录该内容

246 篇文章

订阅专栏

MTK在mtk_feature_type.h和customer_feature_type.h已经提供了一些feature。
vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/3rdparty/mtk/mtk_feature_type.h：

    NO_FEATURE_NORMAL       = 0ULL,
    // MTK (bit 0-31)
    MTK_FEATURE_MFNR        = 1ULL << 0,
    MTK_FEATURE_HDR         = 1ULL << 1,
    MTK_FEATURE_REMOSAIC    = 1ULL << 2,
    MTK_FEATURE_ABF         = 1ULL << 3,
    MTK_FEATURE_NR          = 1ULL << 4,
    MTK_FEATURE_FB          = 1ULL << 5,
    MTK_FEATURE_CZ          = 1ULL << 6,
    MTK_FEATURE_DRE         = 1ULL << 7,
    MTK_FEATURE_DEPTH       = 1ULL << 8,
    MTK_FEATURE_BOKEH       = 1ULL << 9,
    MTK_FEATURE_VSDOF       = (MTK_FEATURE_DEPTH|MTK_FEATURE_BOKEH),
    MTK_FEATURE_FSC         = 1ULL << 10,
    MTK_FEATURE_3DNR        = 1ULL << 11,
    MTK_FEATURE_EIS         = 1ULL << 12,
    MTK_FEATURE_AINR        = 1ULL << 13,
    MTK_FEATURE_DUAL_YUV    = 1ULL << 14,
    MTK_FEATURE_DUAL_HWDEPTH  = 1ULL << 15,
    MTK_FEATURE_AIS         = 1ULL << 16,
    MTK_FEATURE_HFG         = 1ULL << 17,
    MTK_FEATURE_DCE         = 1ULL << 18,

vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/3rdparty/customer/customer_feature_type.h：

    // ThirdParty (bit 32-63)
    TP_FEATURE_HDR          = 1ULL << 32,
    TP_FEATURE_MFNR         = 1ULL << 33,
    TP_FEATURE_EIS          = 1ULL << 34,
    TP_FEATURE_FB           = 1ULL << 35,
    TP_FEATURE_FILTER       = 1ULL << 36,
    TP_FEATURE_DEPTH        = 1ULL << 37,
    TP_FEATURE_BOKEH        = 1ULL << 38,
    TP_FEATURE_VSDOF        = (TP_FEATURE_DEPTH|TP_FEATURE_BOKEH),
    TP_FEATURE_FUSION       = 1ULL << 39,
    TP_FEATURE_HDR_DC       = 1ULL << 40,   // used by DualCam
    TP_FEATURE_DUAL_YUV     = 1ULL << 41,
    TP_FEATURE_DUAL_HWDEPTH = 1ULL << 42,
    TP_FEATURE_PUREBOKEH    = 1ULL << 43,
    TP_FEATURE_RAW_HDR      = 1ULL << 44,
    TP_FEATURE_RELIGHTING   = 1ULL << 45,

MTK提供的这些feature可以满足绝大多数算法的集成，在可以对号入座的情况下，我们直接使用已有feature即可。如果不能够满足我们的要求，可以参考下节内容添加新的feature。

2.2 添加自定义feature

本来单帧算法对应的feature可以选择MTK提供的MTK_FEATURE_FB和TP_FEATURE_FB，但是为了讲解如何添加新feature，我们选择添加一个自定义feature：TP_FEATURE_WATERMARK。

vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/3rdparty/customer/customer_feature_type.h：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/3rdparty/customer/customer_feature_type.h b/vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/3rdparty/customer/customer_feature_type.h
old mode 100644
new mode 100755
index a41fd864f5..17bc35eea8
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/3rdparty/customer/customer_feature_type.h
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/3rdparty/customer/customer_feature_type.h
@@ -59,6 +59,7 @@ enum eFeatureIndexCustomer {
     TP_FEATURE_PUREBOKEH    = 1ULL << 43,
     TP_FEATURE_RAW_HDR      = 1ULL << 44,
     TP_FEATURE_RELIGHTING   = 1ULL << 45,
+    TP_FEATURE_WATERMARK    = 1ULL << 46,
     // TODO: reserve for customer feature index (bit 32-63)
 };

vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/CaptureFeature_Common.cpp：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/CaptureFeature_Common.cpp b/vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/CaptureFeature_Common.cpp
old mode 100644
new mode 100755
index e32f80a609..47273b01c7
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/CaptureFeature_Common.cpp
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/CaptureFeature_Common.cpp
@@ -599,6 +599,7 @@ const char* FeatID2Name(FeatureID_T fid)
     case FID_FUSION_3RD_PARTY:      return "fusion_3rd_party";
     case FID_PUREBOKEH_3RD_PARTY:   return "purebokeh_3rd_party";
     case FID_RELIGHTING_3RD_PARTY:  return "relighting_3rd_party";
+    case FID_WATERMARK_3RD_PARTY:   return "watermark_3rd_party";
 
     default:                        return "unknown";
     };

vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/nodes/YUVNode.cpp：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/nodes/YUVNode.cpp b/vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/nodes/YUVNode.cpp
index 8bb794ba02..d4343aaccf 100755
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/nodes/YUVNode.cpp
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/feature/core/featurePipe/capture/nodes/YUVNode.cpp
@@ -779,7 +779,8 @@ MBOOL YUVNode::onInit()
             featId = FID_FB_3RD_PARTY;
         else if (rProperty.mFeatures & TP_FEATURE_RELIGHTING)
             featId = FID_RELIGHTING_3RD_PARTY;
-
+        else if (rProperty.mFeatures & TP_FEATURE_WATERMARK)
+            featId = FID_WATERMARK_3RD_PARTY;
 
         if (featId != NULL_FEATURE) {
             MY_LOGD_IF(mLogLevel, "%s finds plugin:%s, priority:%d",

vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/feature/featurePipe/ICaptureFeaturePipe.h：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/feature/featurePipe/ICaptureFeaturePipe.h b/vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/feature/featurePipe/ICaptureFeaturePipe.h
old mode 100644
new mode 100755
index 2f1ad8a665..ab47aae456
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/feature/featurePipe/ICaptureFeaturePipe.h
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/feature/featurePipe/ICaptureFeaturePipe.h
@@ -172,6 +172,7 @@ enum CaptureFeatureFeatureID {
     FID_FUSION_3RD_PARTY,
     FID_PUREBOKEH_3RD_PARTY,
     FID_RELIGHTING_3RD_PARTY,
+    FID_WATERMARK_3RD_PARTY,
     NUM_OF_FEATURE,
     NULL_FEATURE = 0xFF,
 };

vendor/mediatek/proprietary/hardware/mtkcam3/pipeline/hwnode/p2/P2_CaptureProcessor.cpp：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/pipeline/hwnode/p2/P2_CaptureProcessor.cpp b/vendor/mediatek/proprietary/hardware/mtkcam3/pipeline/hwnode/p2/P2_CaptureProcessor.cpp
old mode 100644
new mode 100755
index cc1dc549fd..00559cbc30
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/pipeline/hwnode/p2/P2_CaptureProcessor.cpp
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/pipeline/hwnode/p2/P2_CaptureProcessor.cpp
@@ -428,6 +428,9 @@ MBOOL CaptureProcessor::onEnque(const sp<P2FrameRequest> &pP2Frame)
                 pCapRequest->addFeature(FID_HFG);
             if (feature & MTK_FEATURE_DCE)
                 pCapRequest->addFeature(FID_DCE);
+            if (feature & TP_FEATURE_WATERMARK)
+                pCapRequest->addFeature(FID_WATERMARK_3RD_PARTY);
+
         }
     }

3. 将算法对应的feature添加到scenario配置表

在我们打开camera进行预览和拍照的时候，MTK HAL3会执行vendor/mediatek/proprietary/hardware/mtkcam3/pipeline/policy/FeatureSettingPolicy.cpp的代码，会分别调用
vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/scenario_mgr.cpp的
get_streaming_scenario函数和get_capture_scenario函数。它们会读取一个scenario的feature配置表，遍历所有的feature，决定哪些feature会被执行。这个配置表中有许多的scenario，一个scenario可能对应多个feature。因此添加自定义feature后，还需将自定义的feature添加到配置表中。MTK feature 对应的配置表是 gMtkScenarioFeaturesMaps，customer feature 对应的配置表是 gCustomerScenarioFeaturesMaps。

vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/customer_scenario_mgr.cpp：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/customer_scenario_mgr.cpp b/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/customer_scenario_mgr.cpp
old mode 100644
new mode 100755
index f8d081e433..577f85797e
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/customer_scenario_mgr.cpp
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/customer_scenario_mgr.cpp
@@ -93,30 +93,30 @@ using namespace NSCam::v3::pipeline::policy::scenariomgr;
 // #define  <feature combination>              (key feature         | post-processing features | ...)
 //
 // single cam capture feature combination
-#define TP_FEATURE_COMBINATION_SINGLE          (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB)
-#define TP_FEATURE_COMBINATION_HDR             (TP_FEATURE_HDR      | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB)
-#define TP_FEATURE_COMBINATION_AINR            (MTK_FEATURE_AINR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB)
-#define TP_FEATURE_COMBINATION_MFNR            (MTK_FEATURE_MFNR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB)
-#define TP_FEATURE_COMBINATION_REMOSAIC        (MTK_FEATURE_REMOSAIC| MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB)
+#define TP_FEATURE_COMBINATION_SINGLE          (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_HDR             (TP_FEATURE_HDR      | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_AINR            (MTK_FEATURE_AINR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_MFNR            (MTK_FEATURE_MFNR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_REMOSAIC        (MTK_FEATURE_REMOSAIC| MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_WATERMARK)
 #define TP_FEATURE_COMBINATION_CSHOT           (NO_FEATURE_NORMAL   | MTK_FEATURE_CZ| MTK_FEATURE_HFG)
-#define TP_FEATURE_COMBINATION_YUV_REPROCESS   (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| TP_FEATURE_FB)
-#define TP_FEATURE_COMBINATION_RAW_REPROCESS   (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| TP_FEATURE_FB)
+#define TP_FEATURE_COMBINATION_YUV_REPROCESS   (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| TP_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_RAW_REPROCESS   (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| TP_FEATURE_FB| TP_FEATURE_WATERMARK)
 #define TP_FEATURE_COMBINATION_PRO             (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE)
-#define TP_FEATURE_COMBINATION_SUPER_NIGHT_RAW_REPROCESS (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| TP_FEATURE_FB)
+#define TP_FEATURE_COMBINATION_SUPER_NIGHT_RAW_REPROCESS (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| TP_FEATURE_FB| TP_FEATURE_WATERMARK)
 
 // dual cam capture feature combination
 // the VSDOF means the combination of Bokeh feature and Depth feature
-#define TP_FEATURE_COMBINATION_TP_VSDOF           (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_VSDOF)
-#define TP_FEATURE_COMBINATION_TP_VSDOF_HDR       (TP_FEATURE_HDR_DC   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_VSDOF)
-#define TP_FEATURE_COMBINATION_TP_VSDOF_MFNR      (MTK_FEATURE_MFNR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_VSDOF)
-#define TP_FEATURE_COMBINATION_TP_FUSION          (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_FUSION)
-#define TP_FEATURE_COMBINATION_TP_PUREBOKEH       (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_PUREBOKEH)
+#define TP_FEATURE_COMBINATION_TP_VSDOF           (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_VSDOF| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_TP_VSDOF_HDR       (TP_FEATURE_HDR_DC   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_VSDOF| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_TP_VSDOF_MFNR      (MTK_FEATURE_MFNR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_VSDOF| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_TP_FUSION          (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_FUSION| TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_TP_PUREBOKEH       (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE| TP_FEATURE_FB| TP_FEATURE_PUREBOKEH| TP_FEATURE_WATERMARK)
 
 // streaming feature combination (TODO: it should be refined by streaming scenario feature)
-#define TP_FEATURE_COMBINATION_VIDEO_NORMAL       (MTK_FEATURE_FB|TP_FEATURE_FB)
-#define TP_FEATURE_COMBINATION_VIDEO_DUAL_YUV     (MTK_FEATURE_FB|MTK_FEATURE_DUAL_YUV|TP_FEATURE_FB|TP_FEATURE_DUAL_YUV)
-#define TP_FEATURE_COMBINATION_VIDEO_DUAL_HWDEPTH (MTK_FEATURE_FB|MTK_FEATURE_DUAL_HWDEPTH|TP_FEATURE_FB|TP_FEATURE_DUAL_HWDEPTH)
-#define TP_FEATURE_COMBINATION_VIDEO_DUAL_HWVSDOF (MTK_FEATURE_FB|TP_FEATURE_FB)
+#define TP_FEATURE_COMBINATION_VIDEO_NORMAL       (MTK_FEATURE_FB|TP_FEATURE_FB|TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_VIDEO_DUAL_YUV     (MTK_FEATURE_FB|MTK_FEATURE_DUAL_YUV|TP_FEATURE_FB|TP_FEATURE_DUAL_YUV|TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_VIDEO_DUAL_HWDEPTH (MTK_FEATURE_FB|MTK_FEATURE_DUAL_HWDEPTH|TP_FEATURE_FB|TP_FEATURE_DUAL_HWDEPTH|TP_FEATURE_WATERMARK)
+#define TP_FEATURE_COMBINATION_VIDEO_DUAL_HWVSDOF (MTK_FEATURE_FB|TP_FEATURE_FB|TP_FEATURE_WATERMARK)
 // ======================================================================================================
 //
 /******************************************************************************

vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/mtk_scenario_mgr.cpp：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/mtk_scenario_mgr.cpp b/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/mtk_scenario_mgr.cpp
old mode 100644
new mode 100755
index 011f551354..f14ff8a6e2
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/mtk_scenario_mgr.cpp
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/mtk_scenario_mgr.cpp
@@ -89,29 +89,29 @@ using namespace NSCam::v3::pipeline::policy::scenariomgr;
 // #define  <feature combination>              (key feature         | post-processing features | ...)
 //
 // single cam capture feature combination
-#define MTK_FEATURE_COMBINATION_SINGLE         (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB)
-#define MTK_FEATURE_COMBINATION_HDR            (TP_FEATURE_HDR      | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB)
-#define MTK_FEATURE_COMBINATION_AINR           (MTK_FEATURE_AINR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB)
-#define MTK_FEATURE_COMBINATION_MFNR           (MTK_FEATURE_MFNR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB)
-#define MTK_FEATURE_COMBINATION_REMOSAIC       (MTK_FEATURE_REMOSAIC| MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB)
+#define MTK_FEATURE_COMBINATION_SINGLE         (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_HDR            (TP_FEATURE_HDR      | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_AINR           (MTK_FEATURE_AINR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_MFNR           (MTK_FEATURE_MFNR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_REMOSAIC       (MTK_FEATURE_REMOSAIC| MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_WATERMARK)
 #define MTK_FEATURE_COMBINATION_CSHOT          (NO_FEATURE_NORMAL   | MTK_FEATURE_CZ| MTK_FEATURE_HFG)
-#define MTK_FEATURE_COMBINATION_YUV_REPROCESS  (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_FB)
-#define MTK_FEATURE_COMBINATION_RAW_REPROCESS  (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_FB)
-#define MTK_FEATURE_COMBINATION_SUPER_NIGHT_RAW_REPROCESS  (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_FB)
+#define MTK_FEATURE_COMBINATION_YUV_REPROCESS  (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_RAW_REPROCESS  (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_FB| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_SUPER_NIGHT_RAW_REPROCESS  (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_FB| TP_FEATURE_WATERMARK)
 
 // dual cam capture feature combination
 // the VSDOF means the combination of Bokeh feature and Depth feature
-#define MTK_FEATURE_COMBINATION_TP_VSDOF          (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_VSDOF)
-#define MTK_FEATURE_COMBINATION_TP_VSDOF_HDR      (TP_FEATURE_HDR_DC   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_VSDOF)
-#define MTK_FEATURE_COMBINATION_TP_VSDOF_MFNR     (MTK_FEATURE_MFNR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_VSDOF)
-#define MTK_FEATURE_COMBINATION_TP_FUSION         (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_FUSION)
-#define MTK_FEATURE_COMBINATION_TP_PUREBOKEH      (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_PUREBOKEH)
+#define MTK_FEATURE_COMBINATION_TP_VSDOF          (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_VSDOF| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_TP_VSDOF_HDR      (TP_FEATURE_HDR_DC   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_VSDOF| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_TP_VSDOF_MFNR     (MTK_FEATURE_MFNR    | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_VSDOF| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_TP_FUSION         (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_FUSION| TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_TP_PUREBOKEH      (NO_FEATURE_NORMAL   | MTK_FEATURE_NR| MTK_FEATURE_ABF| MTK_FEATURE_CZ| MTK_FEATURE_DRE| MTK_FEATURE_HFG| MTK_FEATURE_DCE | MTK_FEATURE_FB| TP_FEATURE_PUREBOKEH| TP_FEATURE_WATERMARK)
 
 // streaming feature combination (TODO: it should be refined by streaming scenario feature)
-#define MTK_FEATURE_COMBINATION_VIDEO_NORMAL     (MTK_FEATURE_FB|TP_FEATURE_FB)
-#define MTK_FEATURE_COMBINATION_VIDEO_DUAL_YUV   (MTK_FEATURE_FB|MTK_FEATURE_DUAL_YUV|TP_FEATURE_FB|TP_FEATURE_DUAL_YUV)
-#define MTK_FEATURE_COMBINATION_VIDEO_DUAL_HWDEPTH (MTK_FEATURE_FB|MTK_FEATURE_DUAL_HWDEPTH|TP_FEATURE_FB|TP_FEATURE_DUAL_HWDEPTH)
-#define MTK_FEATURE_COMBINATION_VIDEO_DUAL_HWVSDOF (MTK_FEATURE_FB|TP_FEATURE_FB)
+#define MTK_FEATURE_COMBINATION_VIDEO_NORMAL     (MTK_FEATURE_FB|TP_FEATURE_FB|TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_VIDEO_DUAL_YUV   (MTK_FEATURE_FB|MTK_FEATURE_DUAL_YUV|TP_FEATURE_FB|TP_FEATURE_DUAL_YUV|TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_VIDEO_DUAL_HWDEPTH (MTK_FEATURE_FB|MTK_FEATURE_DUAL_HWDEPTH|TP_FEATURE_FB|TP_FEATURE_DUAL_HWDEPTH|TP_FEATURE_WATERMARK)
+#define MTK_FEATURE_COMBINATION_VIDEO_DUAL_HWVSDOF (MTK_FEATURE_FB|TP_FEATURE_FB|TP_FEATURE_WATERMARK)
 // ======================================================================================================
 //
 /******************************************************************************

注意：
MTK在Android Q（10.0）上优化了scenario配置表的客制化，Android Q及更高版本，scenario需要在：
vendor/mediatek/proprietary/custom/[platform]/hal/camera/camera_custom_feature_table.cpp中配置，[platform]是诸如mt6580，mt6763之类的。

将自定义feature添加到scenario配置表时，不可贪多，只要添加到合适的scenario就行，多了可能多个算法会有冲突。如果仅在简单场景，添加到MTK_FEATURE_COMBINATION_SINGLE和TP_FEATURE_COMBINATION_SINGLE就可以满足绝大多数需求。

4. 挂载算法

4.1 为算法选择plugin

MTK HAL3在vendor/mediatek/proprietary/hardware/mtkcam3/include/mtkcam3/3rdparty/plugin/PipelinePluginType.h 中将三方算法的挂载点大致分为以下几类：

BokehPlugin： Bokeh算法挂载点，双摄景深算法的虚化部分。
DepthPlugin： Depth算法挂载点，双摄景深算法的计算深度部分。
FusionPlugin： Depth和Bokeh放在1个算法中，即合并的双摄景深算法挂载点。
JoinPlugin： Streaming相关算法挂载点，预览算法都挂载在这里。
MultiFramePlugin：多帧算法挂载点，包括YUV与RAW，例如MFNR/HDR
RawPlugin： RAW算法挂载点，例如remosaic
YuvPlugin： Yuv单帧算法挂载点，例如美颜、广角镜头畸变校正等

对号入座，将要集成的算法选择相应的plugin。这里是单帧算法，所以预览我们选择JoinPlugin，拍照选择YuvPlugin。

4.2 编写算法集成文件

参照FBImpl.cpp和sample_streaming_fb.cpp中分别实现拍照和预览。目录结构如下：
vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/tp_watermark/
├── Android.mk
├── include
│ └── watermark.h
├── lib
│ ├── arm64-v8a
│ │ └── libwatermark.so
│ └── armeabi-v7a
│ └── libwatermark.so
├── res
│ └── watermark.rgba
├── WatermarkCapture.cpp
└── WatermarkPreview.cpp

文件说明：

Android.mk中配置算法库、头文件、集成的源代码CPP文件编译成库libmtkcam.plugin.tp_watermark，供libmtkcam_3rdparty.customer依赖调用。
集成的源代码CPP文件，WatermarkCapture.cpp用于拍照，WatermarkPreview.cpp用于预览。
libwatermark.so实现了添加水印的功能，libwatermark.so用来模拟需要接入的第三方算法库。watermark.h是头文件。
watermark.rgba是对应的水印文件。

4.2.1 添加全局宏控

为了能控制某个项目是否集成此算法，我们在device/mediateksample/k63v2_64_bsp/ProjectConfig.mk中添加一个宏，用于控制新接入算法的编译：

QXT_WATERMARK_SUPPORT = yes

当某个项目不需要新接入的算法时，将device/mediateksample/[platform]/ProjectConfig.mk的QXT_WA_SUPPORT的值设为 no 就可以了。

4.2.2 mtkcam3/3rdparty/customer/tp_watermark/Android.mk

ifeq ($(QXT_WATERMARK_SUPPORT),yes)
LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := libwatermark
LOCAL_SRC_FILES_32 := lib/armeabi-v7a/libwatermark.so
LOCAL_SRC_FILES_64 := lib/arm64-v8a/libwatermark.so
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_CLASS := SHARED_LIBRARIES
LOCAL_MODULE_SUFFIX := .so
LOCAL_PROPRIETARY_MODULE := true
LOCAL_MULTILIB := both
include $(BUILD_PREBUILT)
################################################################################

include $(CLEAR_VARS)

#-----------------------------------------------------------
include $(TOP)/$(MTK_PATH_SOURCE)/hardware/mtkcam/mtkcam.mk

#-----------------------------------------------------------
LOCAL_SRC_FILES += WatermarkCapture.cpp
LOCAL_SRC_FILES += WatermarkPreview.cpp

#-----------------------------------------------------------
LOCAL_C_INCLUDES += $(MTKCAM_C_INCLUDES)
LOCAL_C_INCLUDES += $(TOP)/$(MTK_PATH_SOURCE)/hardware/mtkcam3/include
LOCAL_C_INCLUDES += $(TOP)/$(MTK_PATH_SOURCE)/hardware/mtkcam/include
#
LOCAL_C_INCLUDES += system/media/camera/include
LOCAL_C_INCLUDES += $(TOP)/external/libyuv/files/include/
LOCAL_C_INCLUDES += $(TOP)/$(MTK_PATH_SOURCE)/hardware/mtkcam3/3rdparty/customer/tp_watermark/include

#-----------------------------------------------------------
LOCAL_CFLAGS += $(MTKCAM_CFLAGS)
#

#-----------------------------------------------------------
LOCAL_STATIC_LIBRARIES +=
#
LOCAL_WHOLE_STATIC_LIBRARIES +=

#-----------------------------------------------------------
LOCAL_SHARED_LIBRARIES += liblog
LOCAL_SHARED_LIBRARIES += libutils
LOCAL_SHARED_LIBRARIES += libcutils
LOCAL_SHARED_LIBRARIES += libmtkcam_modulehelper
LOCAL_SHARED_LIBRARIES += libmtkcam_stdutils
LOCAL_SHARED_LIBRARIES += libmtkcam_pipeline
LOCAL_SHARED_LIBRARIES += libmtkcam_metadata
LOCAL_SHARED_LIBRARIES += libmtkcam_metastore
LOCAL_SHARED_LIBRARIES += libmtkcam_streamutils
LOCAL_SHARED_LIBRARIES += libmtkcam_imgbuf
LOCAL_SHARED_LIBRARIES += libyuv.vendor
#-----------------------------------------------------------
LOCAL_HEADER_LIBRARIES := libutils_headers liblog_headers libhardware_headers

#-----------------------------------------------------------
LOCAL_MODULE := libmtkcam.plugin.tp_watermark
LOCAL_PROPRIETARY_MODULE := true
LOCAL_MODULE_OWNER := mtk
LOCAL_MODULE_TAGS := optional
include $(MTK_STATIC_LIBRARY)
################################################################################

include $(call all-makefiles-under,$(LOCAL_PATH))
endif

4.2.3 mtkcam3/3rdparty/customer/tp_watermark/WatermarkCapture.cpp

主要函数介绍：

在property函数中feature类型设置我们在第三步中添加的TP_FEATURE_WATERMARK，并设置名称、优先级等等属性。
在negotiate函数中配置算法需要的输入、输出图像的格式、尺寸。
在negotiate函数或者process函数中获取上层传下来的metadata参数，根据参数决定算法是否运行，或者将参数传给算法。
在process函数中接入算法。

注意：

MTK原文：
negotiate函数设置格式时，一个挂载点如果挂载多个同类型的plugin，则只有第一个 plugin 中的 negotiate 中的 input buffer 设定有效。
在YUVNode 下挂载单帧 YUV plugin时，一定要确保 MTK 平台的SWNR plugin 的 negotiate 直接返回不OK，不做任何 accepted format 等的设定。否则，可能会出现因 SWNR plugin和三方plugin negotiate时设定的 accepted format 不一致而导致的三方 plugin 拿不到它想要的 format 的buffer。

vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/swnr/SWNRImpl.cpp：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/swnr/SWNRImpl.cpp b/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/swnr/SWNRImpl.cpp
old mode 100644
new mode 100755
index 0ae951cc83..c4819068f7
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/swnr/SWNRImpl.cpp
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/mtk/swnr/SWNRImpl.cpp
@@ -340,7 +340,7 @@ negotiate(Selection& sel)
     sel.mOMetadataApp.setRequired(false);
     sel.mOMetadataHal.setRequired(true);
 
-    return OK;
+    return -EINVAL;//OK;
 }

vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/tp_watermark/WatermarkCapture.cpp：

#define LOG_TAG "WatermarkCapture"
//
#include <mtkcam/utils/std/Log.h>
//
#include <stdlib.h>
#include <utils/Errors.h>
#include <utils/List.h>
#include <utils/RefBase.h>
#include <sstream>
//
#include <mtkcam/utils/metadata/client/mtk_metadata_tag.h>
#include <mtkcam/utils/metadata/hal/mtk_platform_metadata_tag.h>
//
//
#include <mtkcam/utils/imgbuf/IIonImageBufferHeap.h>
//
#include <mtkcam/drv/IHalSensor.h>
#include <mtkcam/utils/std/Format.h>
//
#include <mtkcam3/pipeline/hwnode/NodeId.h>

#include <mtkcam/utils/metastore/ITemplateRequest.h>
#include <mtkcam/utils/metastore/IMetadataProvider.h>
#include <mtkcam3/3rdparty/plugin/PipelinePlugin.h>
#include <mtkcam3/3rdparty/plugin/PipelinePluginType.h>

#include <stdlib.h>
#include <watermark.h>
#include <mtkcam/utils/std/Time.h>
#include <time.h>
#include <libyuv.h>
//
using namespace NSCam;
using namespace android;
using namespace std;
using namespace NSCam::NSPipelinePlugin;
/******************************************************************************
 *
 ******************************************************************************/
#define MY_LOGV(fmt, arg...)        CAM_LOGV("(%d)[%s] " fmt, ::gettid(), __FUNCTION__, ##arg)
#define MY_LOGD(fmt, arg...)        CAM_LOGD("(%d)[%s] " fmt, ::gettid(), __FUNCTION__, ##arg)
#define MY_LOGI(fmt, arg...)        CAM_LOGI("(%d)[%s] " fmt, ::gettid(), __FUNCTION__, ##arg)
#define MY_LOGW(fmt, arg...)        CAM_LOGW("(%d)[%s] " fmt, ::gettid(), __FUNCTION__, ##arg)
#define MY_LOGE(fmt, arg...)        CAM_LOGE("(%d)[%s] " fmt, ::gettid(), __FUNCTION__, ##arg)
//
#define FUNCTION_IN                 MY_LOGD("%s +", __FUNCTION__)
#define FUNCTION_OUT                MY_LOGD("%s -", __FUNCTION__)
//systrace
#if 1
#ifndef ATRACE_TAG
#define ATRACE_TAG                           ATRACE_TAG_CAMERA
#endif
#include <utils/Trace.h>

#define WATERMARK_TRACE_CALL()                      ATRACE_CALL()
#define WATERMARK_TRACE_NAME(name)                  ATRACE_NAME(name)
#define WATERMARK_TRACE_BEGIN(name)                 ATRACE_BEGIN(name)
#define WATERMARK_TRACE_END()                       ATRACE_END()
#else
#define WATERMARK_TRACE_CALL()
#define WATERMARK_TRACE_NAME(name)
#define WATERMARK_TRACE_BEGIN(name)
#define WATERMARK_TRACE_END()
#endif

template <class T>
inline bool
tryGetMetadata(IMetadata const *pMetadata, MUINT32 tag, T& rVal)
{
    if(pMetadata == nullptr) return MFALSE;

    IMetadata::IEntry entry = pMetadata->entryFor(tag);
    if(!entry.isEmpty())
    {
        rVal = entry.itemAt(0,Type2Type<T>());
        return true;
    }
    else
    {
#define var(v) #v
#define type(t) #t
        MY_LOGW("no metadata %s in %s", var(tag), type(pMetadata));
#undef type
#undef var
    }
    return false;
}

/******************************************************************************
*
******************************************************************************/
class WatermarkCapture : public YuvPlugin::IProvider {

public:
    typedef YuvPlugin::Property Property;
    typedef YuvPlugin::Selection Selection;
    typedef YuvPlugin::Request::Ptr RequestPtr;
    typedef YuvPlugin::RequestCallback::Ptr RequestCallbackPtr;

private:
    int mOpenid;

    MBOOL mEnable = 1;
    MBOOL mDump = 0;
    unsigned char *mSrcRGBA = nullptr;
    unsigned char *mWatermarkRGBA = nullptr;
    int mWatermarkWidth = 0;
    int mWatermarkHeight = 0;

public:
    WatermarkCapture();

    ~WatermarkCapture();

    void init();

    void uninit();

    void abort(vector <RequestPtr> &pRequests);

    void set(MINT32 iOpenId, MINT32 iOpenId2);

    const Property &property();

    MERROR negotiate(Selection &sel);

    MERROR process(RequestPtr pRequest, RequestCallbackPtr pCallback);

};

WatermarkCapture::WatermarkCapture() : mOpenid(-1) {
    FUNCTION_IN;
    mEnable = property_get_bool("vendor.debug.camera.watermark.capture.enable", 1);
    mDump = property_get_bool("vendor.debug.camera.watermark.capture.dump", 0);
    FUNCTION_OUT;
}

WatermarkCapture::~WatermarkCapture() {
    FUNCTION_IN;
    FUNCTION_OUT;
}

void WatermarkCapture::init() {
    FUNCTION_IN;
    mWatermarkWidth = 180;
    mWatermarkHeight = 640;
    int watermarkSize = mWatermarkWidth * mWatermarkHeight * 4;
    mWatermarkRGBA = (unsigned char *) malloc(watermarkSize);

    FILE *fp;
    char path[256];
    snprintf(path, sizeof(path), "/vendor/res/images/watermark.rgba");
    if ((fp = fopen(path, "r")) == NULL) {
        MY_LOGE("Failed to open /vendor/res/images/watermark.rgba");
    }
    fread(mWatermarkRGBA, 1, watermarkSize, fp);
    fclose(fp);
    FUNCTION_OUT;
}

void WatermarkCapture::uninit() {
    FUNCTION_IN;
    free(mWatermarkRGBA);
    FUNCTION_OUT;
}

void WatermarkCapture::abort(vector <RequestPtr> &pRequests) {
    FUNCTION_IN;
    (void)pRequests;
    FUNCTION_OUT;
}

void WatermarkCapture::set(MINT32 iOpenId, MINT32 iOpenId2) {
    FUNCTION_IN;
    MY_LOGD("set openId:%d openId2:%d", iOpenId, iOpenId2);
    mOpenid = iOpenId;
    FUNCTION_OUT;
}

const WatermarkCapture::Property &WatermarkCapture::property() {
    FUNCTION_IN;
    static Property prop;
    static bool inited;

    if (!inited) {
        prop.mName = "TP_WATERMARK";
        prop.mFeatures = TP_FEATURE_WATERMARK;
        prop.mInPlace = MTRUE;
        prop.mFaceData = eFD_Current;
        prop.mPosition = 0;
        inited = true;
    }
    FUNCTION_OUT;
    return prop;
}

MERROR WatermarkCapture::negotiate(Selection &sel) {
    FUNCTION_IN;
    if (!mEnable) {
        MY_LOGD("Force off TP_WATERMARK");
        FUNCTION_OUT;
        return -EINVAL;
    }

    sel.mIBufferFull
            .setRequired(MTRUE)
            .addAcceptedFormat(eImgFmt_I420)
            .addAcceptedSize(eImgSize_Full);

    sel.mIMetadataDynamic.setRequired(MTRUE);
    sel.mIMetadataApp.setRequired(MTRUE);
    sel.mIMetadataHal.setRequired(MTRUE);
    sel.mOMetadataApp.setRequired(MTRUE);
    sel.mOMetadataHal.setRequired(MTRUE);

    FUNCTION_OUT;
    return OK;
}

MERROR WatermarkCapture::process(RequestPtr pRequest,
                               RequestCallbackPtr pCallback = nullptr) {
    FUNCTION_IN;
    WATERMARK_TRACE_CALL();

    MBOOL needRun = MFALSE;
    if (pRequest->mIBufferFull != nullptr && pRequest->mOBufferFull != nullptr) {
        IImageBuffer *pIBufferFull = pRequest->mIBufferFull->acquire();
        IImageBuffer *pOBufferFull = pRequest->mOBufferFull->acquire();

        if (pRequest->mIMetadataDynamic != nullptr) {
            IMetadata *meta = pRequest->mIMetadataDynamic->acquire();
            if (meta != NULL)
                MY_LOGD("[IN] Dynamic metadata count: %d", meta->count());
            else
                MY_LOGD("[IN] Dynamic metadata empty");
        }

        int frameNo = 0, requestNo = 0;
        if (pRequest->mIMetadataHal != nullptr) {
            IMetadata *pIMetataHAL = pRequest->mIMetadataHal->acquire();
            if (pIMetataHAL != NULL) {
                MY_LOGD("[IN] HAL metadata count: %d", pIMetataHAL->count());
                if (!tryGetMetadata<int>(pIMetataHAL, MTK_PIPELINE_FRAME_NUMBER, frameNo)) {
                    frameNo = 0;
                }
                if (!tryGetMetadata<int>(pIMetataHAL, MTK_PIPELINE_REQUEST_NUMBER, requestNo)) {
                    requestNo = 0;
                }
                MY_LOGD("frameNo: %d, requestNo: %d", frameNo, requestNo);
            } else {
                MY_LOGD("[IN] HAL metadata empty");
            }
        }

        if (pRequest->mIMetadataApp != nullptr) {
            IMetadata *pIMetadataApp = pRequest->mIMetadataApp->acquire();
            MINT32 mode = 0;
            if (!tryGetMetadata<MINT32>(pIMetadataApp, QXT_FEATURE_WATERMARK, mode)) {
                mode = 0;
            }
            needRun = mode == 1 ? 1 : 0;
        }
        MY_LOGD("needRun: %d", needRun);

        int width = pIBufferFull->getImgSize().w;
        int height = pIBufferFull->getImgSize().h;
        MINT inFormat = pIBufferFull->getImgFormat();

        if (needRun && inFormat == NSCam::eImgFmt_I420) {
            uint32_t currentTime = (NSCam::Utils::TimeTool::getReadableTime()) % 1000;
            time_t timep;
            time (&timep);
            char currentDate[20];
            strftime(currentDate, sizeof(currentDate), "%Y%m%d_%H%M%S", localtime(&timep));

            //dump input I420
            if (mDump) {
                char path[256];
                snprintf(path, sizeof(path), "/data/vendor/camera_dump/capture_in_frame%d_%dx%d_%s_%d.i420",
                    frameNo, width, height, currentDate, currentTime);
                pIBufferFull->saveToFile(path);
            }

            nsecs_t t1 = systemTime(CLOCK_MONOTONIC);
            if (mSrcRGBA == NULL) {
                mSrcRGBA = (unsigned char *) malloc(width * height * 4);
            }
            //convert I420 to RGBA
            libyuv::I420ToABGR((unsigned char *) (pIBufferFull->getBufVA(0)), width,
                               (unsigned char *) (pIBufferFull->getBufVA(1)), width >> 1,
                               (unsigned char *) (pIBufferFull->getBufVA(2)), width >> 1,
                               mSrcRGBA, width * 4,
                               width, height);
            nsecs_t t2 = systemTime(CLOCK_MONOTONIC);
            MY_LOGD("Prepare src cost %02ld ms", ns2ms(t2 - t1));

            Watermark::add(mSrcRGBA, width, height, mWatermarkRGBA, mWatermarkWidth, mWatermarkHeight, (width - mWatermarkWidth) / 2, (height - mWatermarkHeight) / 2);
            nsecs_t t3 = systemTime(CLOCK_MONOTONIC);
            MY_LOGD("Add watermark cost %02ld ms", ns2ms(t3 - t2));

            //convert RGBA to I420
            libyuv::ABGRToI420(mSrcRGBA, width * 4,
                               (unsigned char *) (pOBufferFull->getBufVA(0)), width,
                               (unsigned char *) (pOBufferFull->getBufVA(1)), width >> 1,
                               (unsigned char *) (pOBufferFull->getBufVA(2)), width >> 1,
                               width, height);
            nsecs_t t4 = systemTime(CLOCK_MONOTONIC);
            MY_LOGD("Copy in to out cost %02ld ms", ns2ms(t4 - t3));

            //dump output I420
            if (mDump) {
                char path[256];
                snprintf(path, sizeof(path), "/data/vendor/camera_dump/capture_out_frame%d_%dx%d_%s_%d.i420",
                    frameNo, width, height, currentDate, currentTime);
                pOBufferFull->saveToFile(path);
            }
            free(mSrcRGBA);
        } else {
            if (!needRun) {
                MY_LOGE("No need run, skip add watermark for capture.");
            } else if (inFormat != NSCam::eImgFmt_YV12) {
                MY_LOGE("Unsupported format, skip add watermark for capture.");
            } else {
                MY_LOGE("Unknown exception, skip add watermark for capture.");
            }

            memcpy((unsigned char *) (pOBufferFull->getBufVA(0)),
                   (unsigned char *) (pIBufferFull->getBufVA(0)),
                   pIBufferFull->getBufSizeInBytes(0));
            memcpy((unsigned char *) (pOBufferFull->getBufVA(1)),
                   (unsigned char *) (pIBufferFull->getBufVA(1)),
                   pIBufferFull->getBufSizeInBytes(1));
            memcpy((unsigned char *) (pOBufferFull->getBufVA(2)),
                   (unsigned char *) (pIBufferFull->getBufVA(2)),
                   pIBufferFull->getBufSizeInBytes(2));
        }

        pRequest->mIBufferFull->release();
        pRequest->mOBufferFull->release();

        if (pRequest->mIMetadataDynamic != nullptr) {
            pRequest->mIMetadataDynamic->release();
        }

        if (pRequest->mIMetadataHal != nullptr) {
            pRequest->mIMetadataHal->release();
        }

        if (pRequest->mIMetadataApp != nullptr) {
            pRequest->mIMetadataApp->release();
        }
    }

    if (pCallback != nullptr) {
        MY_LOGD("callback request");
        pCallback->onCompleted(pRequest, 0);
    }
    FUNCTION_OUT;
    return OK;
}

REGISTER_PLUGIN_PROVIDER(Yuv, WatermarkCapture);

4.2.4 mtkcam3/3rdparty/customer/tp_watermark/WatermarkPreview.cpp

#include <mtkcam3/3rdparty/plugin/PipelinePluginType.h>
#include <mtkcam/utils/metadata/hal/mtk_platform_metadata_tag.h>
#include <mtkcam/utils/metadata/client/mtk_metadata_tag.h>

#include <cutils/properties.h>

#include <watermark.h>
#include <mtkcam/utils/std/Time.h>
#include <time.h>
#include <libyuv.h>
#include <dlfcn.h>

using NSCam::NSPipelinePlugin::Interceptor;
using NSCam::NSPipelinePlugin::PipelinePlugin;
using NSCam::NSPipelinePlugin::PluginRegister;
using NSCam::NSPipelinePlugin::Join;
using NSCam::NSPipelinePlugin::JoinPlugin;

using namespace NSCam::NSPipelinePlugin;
using NSCam::MSize;

using NSCam::MERROR;
using NSCam::IImageBuffer;
using NSCam::IMetadata;
using NSCam::Type2Type;

#ifdef LOG_TAG
#undef LOG_TAG
#endif // LOG_TAG
#define LOG_TAG "WatermarkPreview"

#include <log/log.h>
#include <android/log.h>

#define MY_LOGI(fmt, arg...)  ALOGI("[%s] " fmt, __FUNCTION__, ##arg)
#define MY_LOGD(fmt, arg...)  ALOGD("[%s] " fmt, __FUNCTION__, ##arg)
#define MY_LOGW(fmt, arg...)  ALOGW("[%s] " fmt, __FUNCTION__, ##arg)
#define MY_LOGE(fmt, arg...)  ALOGE("[%s] " fmt, __FUNCTION__, ##arg)
#define FUNCTION_IN   MY_LOGD("%s +", __FUNCTION__)
#define FUNCTION_OUT  MY_LOGD("%s -", __FUNCTION__)

template <class T>
inline bool
tryGetMetadata(IMetadata const *pMetadata, MUINT32 tag, T& rVal)
{
    if(pMetadata == nullptr) return MFALSE;

    IMetadata::IEntry entry = pMetadata->entryFor(tag);
    if(!entry.isEmpty())
    {
        rVal = entry.itemAt(0,Type2Type<T>());
        return true;
    }
    else
    {
#define var(v) #v
#define type(t) #t
        MY_LOGW("no metadata %s in %s", var(tag), type(pMetadata));
#undef type
#undef var
    }
    return false;
}

class WatermarkPreview : public JoinPlugin::IProvider {
public:
    typedef JoinPlugin::Property Property;
    typedef JoinPlugin::Selection Selection;
    typedef JoinPlugin::Request::Ptr RequestPtr;
    typedef JoinPlugin::RequestCallback::Ptr RequestCallbackPtr;

private:
    bool mDisponly = false;
    bool mInplace = false;
    int mOpenID1 = 0;
    int mOpenID2 = 0;

    MBOOL mEnable = 1;
    MBOOL mDump = 0;
    unsigned char *mSrcRGBA = nullptr;
    unsigned char *mWatermarkRGBA = nullptr;
    int mWatermarkWidth = 0;
    int mWatermarkHeight = 0;

public:
    WatermarkPreview();

    ~WatermarkPreview();

    void init();

    void uninit();

    void abort(std::vector <RequestPtr> &pRequests);

    void set(MINT32 openID1, MINT32 openID2);

    const Property &property();

    MERROR negotiate(Selection &sel);

    MERROR process(RequestPtr pRequest, RequestCallbackPtr pCallback);

private:
    MERROR getConfigSetting(Selection &sel);

    MERROR getP1Setting(Selection &sel);

    MERROR getP2Setting(Selection &sel);
};

WatermarkPreview::WatermarkPreview() {
    FUNCTION_IN;
    mEnable = property_get_bool("vendor.debug.camera.watermark.preview.enable", 1);
    mDump = property_get_bool("vendor.debug.camera.watermark.preview.dump", 0);
    FUNCTION_OUT;
}

WatermarkPreview::~WatermarkPreview() {
    FUNCTION_IN;
    FUNCTION_OUT;
}

void WatermarkPreview::init() {
    FUNCTION_IN;
    mWatermarkWidth = 180;
    mWatermarkHeight = 640;
    int watermarkSize = mWatermarkWidth * mWatermarkHeight * 4;
    mWatermarkRGBA = (unsigned char *) malloc(watermarkSize);

    FILE *fp;
    char path[256];
    snprintf(path, sizeof(path), "/vendor/res/images/watermark.rgba");
    if ((fp = fopen(path, "r")) == NULL) {
        MY_LOGE("Failed to open /vendor/res/images/watermark.rgba");
    }
    fread(mWatermarkRGBA, 1, watermarkSize, fp);
    fclose(fp);
    FUNCTION_OUT;
}

void WatermarkPreview::uninit() {
    FUNCTION_IN;
    free(mSrcRGBA);
    free(mWatermarkRGBA);
    FUNCTION_OUT;
}

void WatermarkPreview::abort(std::vector <RequestPtr> &pRequests) {
    FUNCTION_IN;
    (void)pRequests;
    FUNCTION_OUT;
}

void WatermarkPreview::set(MINT32 openID1, MINT32 openID2) {
    FUNCTION_IN;
    MY_LOGD("set openID1:%d openID2:%d", openID1, openID2);
    mOpenID1 = openID1;
    mOpenID2 = openID2;
    FUNCTION_OUT;
}

const WatermarkPreview::Property &WatermarkPreview::property() {
    FUNCTION_IN;
    static Property prop;
    static bool inited;

    if (!inited) {
        prop.mName = "TP_WATERMARK";
        prop.mFeatures = TP_FEATURE_WATERMARK;
        //prop.mInPlace = MTRUE;
        //prop.mFaceData = eFD_Current;
        //prop.mPosition = 0;
        inited = true;
    }
    FUNCTION_OUT;
    return prop;
}

MERROR WatermarkPreview::negotiate(Selection &sel) {
    FUNCTION_IN;
    MERROR ret = OK;

    if (sel.mSelStage == eSelStage_CFG) {
        ret = getConfigSetting(sel);
    } else if (sel.mSelStage == eSelStage_P1) {
        ret = getP1Setting(sel);
    } else if (sel.mSelStage == eSelStage_P2) {
        ret = getP2Setting(sel);
    }
    FUNCTION_OUT;
    return ret;
}

MERROR WatermarkPreview::process(RequestPtr pRequest, RequestCallbackPtr pCallback) {
    FUNCTION_IN;
    (void) pCallback;
    MERROR ret = -EINVAL;
    MBOOL needRun = MFALSE;
    IImageBuffer *in = NULL, *out = NULL;

    if (pRequest->mIBufferMain1 != NULL && pRequest->mOBufferMain1 != NULL) {
        in = pRequest->mIBufferMain1->acquire();
        out = pRequest->mOBufferMain1->acquire();

        int frameNo = 0, requestNo = 0;
        if (pRequest->mIMetadataHal1 != nullptr) {
            IMetadata *pIMetataHAL1 = pRequest->mIMetadataHal1->acquire();
            if (pIMetataHAL1 != NULL) {
                if (!tryGetMetadata<int>(pIMetataHAL1, MTK_PIPELINE_FRAME_NUMBER, frameNo)) {
                    frameNo = 0;
                }
                if (!tryGetMetadata<int>(pIMetataHAL1, MTK_PIPELINE_REQUEST_NUMBER, requestNo)) {
                    requestNo = 0;
                }
                pRequest->mIMetadataHal1->release();
                MY_LOGD("frameNo: %d, requestNo: %d", frameNo, requestNo);
            } else {
                MY_LOGD("HAL metadata empty");
            }
        }

        MY_LOGD("in[%d](%dx%d)=%p out[%d](%dx%d)=%p",
                in->getPlaneCount(), in->getImgSize().w, in->getImgSize().h, in,
                out->getPlaneCount(), out->getImgSize().w, out->getImgSize().h, out);

        if (pRequest->mIMetadataApp != nullptr) {
            IMetadata *pIMetadataApp = pRequest->mIMetadataApp->acquire();
            MINT32 mode = 0;
            if (!tryGetMetadata<MINT32>(pIMetadataApp, QXT_FEATURE_WATERMARK, mode)) {
                mode = 0;
            }
            needRun = mode == 1 ? 1 : 0;
            pRequest->mIMetadataApp->release();
        }
        MY_LOGD("needRun: %d", needRun);

        int width = in->getImgSize().w;
        int height = in->getImgSize().h;
        MINT inFormat = in->getImgFormat();

        if (needRun && inFormat == NSCam::eImgFmt_YV12) {
            uint32_t currentTime = (NSCam::Utils::TimeTool::getReadableTime()) % 1000;
            time_t timep;
            time (&timep);
            char currentDate[20];
            strftime(currentDate, sizeof(currentDate), "%Y%m%d_%H%M%S", localtime(&timep));

            //dump input YV12
            if (mDump) {
                char path[256];
                snprintf(path, sizeof(path), "/data/vendor/camera_dump/preview_in_frame%d_%dx%d_%s_%d.yv12",
                    frameNo, width, height, currentDate, currentTime);
                in->saveToFile(path);
            }

            nsecs_t t1 = systemTime(CLOCK_MONOTONIC);
            if (mSrcRGBA == NULL) {
                mSrcRGBA = (unsigned char *) malloc(width * height * 4);
            }
            //convert YV12 to RGBA
            libyuv::I420ToABGR((unsigned char *)(in->getBufVA(0)), width,
                               (unsigned char *)(in->getBufVA(2)), width >> 1,
                               (unsigned char *)(in->getBufVA(1)), width >> 1,
                               mSrcRGBA, width * 4,
                               width, height);
            nsecs_t t2 = systemTime(CLOCK_MONOTONIC);
            MY_LOGD("Prepare src cost %02ld ms", ns2ms(t2 - t1));

            Watermark::add(mSrcRGBA, width, height, mWatermarkRGBA, mWatermarkWidth, mWatermarkHeight, (width - mWatermarkWidth) / 2, (height - mWatermarkHeight) / 2);
            nsecs_t t3 = systemTime(CLOCK_MONOTONIC);
            MY_LOGD("Add watermark cost %02ld ms", ns2ms(t3 - t2));

            //convert RGBA to YV12
            libyuv::ABGRToI420(mSrcRGBA, width * 4,
                               (unsigned char *)(out->getBufVA(0)), width,
                               (unsigned char *)(out->getBufVA(2)), width >> 1,
                               (unsigned char *)(out->getBufVA(1)), width >> 1,
                               width, height);
            nsecs_t t4 = systemTime(CLOCK_MONOTONIC);
            MY_LOGD("Copy in to out cost %02ld ms", ns2ms(t4 - t3));

            //dump output YV12
            if (mDump) {
                char path[256];
                snprintf(path, sizeof(path), "/data/vendor/camera_dump/preview_out_frame%d_%dx%d_%s_%d.yv12",
                    frameNo, width, height, currentDate, currentTime);
                out->saveToFile(path);
            }

        } else {
            if (!needRun) {
                MY_LOGE("No need run, skip add watermark for preview.");
            } else if (inFormat != NSCam::eImgFmt_YV12) {
                MY_LOGE("Unsupported format, skip add watermark for preview.");
            } else {
                MY_LOGE("Unknown exception, skip add watermark for preview.");
            }
            memcpy((unsigned char *) (out->getBufVA(0)),
                   (unsigned char *)(in->getBufVA(0)),
                   in->getBufSizeInBytes(0));
            memcpy((unsigned char *) (out->getBufVA(1)),
                   (unsigned char *)(in->getBufVA(1)),
                   in->getBufSizeInBytes(1));
            memcpy((unsigned char *) (out->getBufVA(2)),
                   (unsigned char *)(in->getBufVA(2)),
                   in->getBufSizeInBytes(2));
        }

        pRequest->mIBufferMain1->release();
        pRequest->mOBufferMain1->release();
        ret = OK;
    }

    FUNCTION_OUT;
    return ret;
}

MERROR WatermarkPreview::getConfigSetting(Selection &sel) {
    MY_LOGI("max out size(%dx%d)",
            sel.mCfgInfo.mMaxOutSize.w, sel.mCfgInfo.mMaxOutSize.h);

    mDisponly = property_get_bool("vendor.debug.tpi.s.fb.disponly", 0);
    mInplace = mDisponly || property_get_bool("vendor.debug.tpi.s.fb.inplace", 0);

    sel.mCfgOrder = 3;
    sel.mCfgJoinEntry = eJoinEntry_S_YUV;
    sel.mCfgInplace = mInplace;
    sel.mCfgEnableFD = MTRUE;
    sel.mCfgRun = mEnable;
    sel.mIBufferMain1.setRequired(MTRUE);
    if (!mDisponly && property_get_bool("vendor.debug.tpi.s.fb.nv21", 0)) {
        sel.mIBufferMain1.addAcceptedFormat(NSCam::eImgFmt_NV21);
    }
    if (!mDisponly && property_get_bool("vendor.debug.tpi.s.fb.size", 0)) {
        sel.mIBufferMain1.setSpecifiedSize(sel.mCfgInfo.mMaxOutSize);
    }
    sel.mOBufferMain1.setRequired(MTRUE);
    sel.mIBufferMain1.addAcceptedFormat(NSCam::eImgFmt_YV12);
    sel.mIBufferMain1.addAcceptedSize(eImgSize_Full);

    IMetadata *meta = sel.mIMetadataApp.getControl().get();
    MY_LOGD("sessionMeta=%p", meta);

    return OK;
}

MERROR WatermarkPreview::getP1Setting(Selection &sel) {
    (void) sel;
    return OK;
}

MERROR WatermarkPreview::getP2Setting(Selection &sel) {
    MBOOL run = MTRUE;
    sel.mP2Run = run;
    return OK;
}

REGISTER_PLUGIN_PROVIDER(Join, WatermarkPreview);

4.2.5 mtkcam3/3rdparty/customer/Android.mk

最终vendor.img需要的目标共享库是libmtkcam_3rdparty.customer.so。因此，我们还需要修改Android.mk，使模块libmtkcam_3rdparty.customer依赖libmtkcam.plugin.tp_watermark。vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/Android.mk：

diff --git a/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/Android.mk b/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/Android.mk
old mode 100644
new mode 100755
index ce060c39f9..ff5763d3c2
--- a/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/Android.mk
+++ b/vendor/mediatek/proprietary/hardware/mtkcam3/3rdparty/customer/Android.mk
@@ -70,6 +70,13 @@ LOCAL_WHOLE_STATIC_LIBRARIES += libmtkcam.plugin.tp_purebokeh
 LOCAL_SHARED_LIBRARIES += libcam.iopipe
 LOCAL_SHARED_LIBRARIES += libmtkcam_modulehelper
 endif
+
+ifeq ($(QXT_WATERMARK_SUPPORT), yes)
+LOCAL_SHARED_LIBRARIES += libwatermark
+LOCAL_SHARED_LIBRARIES += libyuv.vendor
+LOCAL_WHOLE_STATIC_LIBRARIES += libmtkcam.plugin.tp_watermark
+endif
+
 # for app super night ev decision (experimental for customer only)
 LOCAL_WHOLE_STATIC_LIBRARIES += libmtkcam.control.customersupernightevdecision

4.2.6 预置水印文件

最后

自我介绍一下，小编13年上海交大毕业，曾经在小公司待过，也去过华为、OPPO等大厂，18年进入阿里一直到现在。

深知大多数Java工程师，想要提升技能，往往是自己摸索成长，自己不成体系的自学效果低效漫长且无助。

因此收集整理了一份《2024年嵌入式&物联网开发全套学习资料》，初衷也很简单，就是希望能够帮助到想自学提升又不知道该从何学起的朋友，同时减轻大家的负担。

既有适合小白学习的零基础资料，也有适合3年以上经验的小伙伴深入学习提升的进阶课程，基本涵盖了95%以上嵌入式&物联网开发知识点，真正体系化！

如果你觉得这些内容对你有帮助，需要这份全套学习资料的朋友可以戳我获取！！

由于文件比较大，这里只是将部分目录大纲截图出来，每个节点里面都包含大厂面经、学习笔记、源码讲义、实战项目、讲解视频，并且后续会持续更新！！

+= libmtkcam.plugin.tp_purebokeh
LOCAL_SHARED_LIBRARIES += libcam.iopipe
LOCAL_SHARED_LIBRARIES += libmtkcam_modulehelper
endif
+
+ifeq ($(QXT_WATERMARK_SUPPORT), yes)
+LOCAL_SHARED_LIBRARIES += libwatermark
+LOCAL_SHARED_LIBRARIES += libyuv.vendor
+LOCAL_WHOLE_STATIC_LIBRARIES += libmtkcam.plugin.tp_watermark
+endif
+

for app super night ev decision (experimental for customer only)

LOCAL_WHOLE_STATIC_LIBRARIES += libmtkcam.control.customersupernightevdecision


4.2.6 预置水印文件



## 最后

**自我介绍一下，小编13年上海交大毕业，曾经在小公司待过，也去过华为、OPPO等大厂，18年进入阿里一直到现在。**

**深知大多数Java工程师，想要提升技能，往往是自己摸索成长，自己不成体系的自学效果低效漫长且无助。**

**因此收集整理了一份《2024年嵌入式&物联网开发全套学习资料》，初衷也很简单，就是希望能够帮助到想自学提升又不知道该从何学起的朋友，同时减轻大家的负担。**

[外链图片转存中...(img-uYbaTfoL-1715538732328)]

[外链图片转存中...(img-D9EEl8u8-1715538732329)]

[外链图片转存中...(img-1nzCzTXt-1715538732329)]

 [外链图片转存中...(img-cyorwIvd-1715538732330)]

[外链图片转存中...(img-qhGEhXeK-1715538732331)]

[外链图片转存中...(img-BzxBdkMV-1715538732331)]

[外链图片转存中...(img-RlCDDGLf-1715538732332)]

 

**既有适合小白学习的零基础资料，也有适合3年以上经验的小伙伴深入学习提升的进阶课程，基本涵盖了95%以上嵌入式&物联网开发知识点，真正体系化！**

[**如果你觉得这些内容对你有帮助，需要这份全套学习资料的朋友可以戳我获取！！**](https://bbs.youkuaiyun.com/topics/618654289)

**由于文件比较大，这里只是将部分目录大纲截图出来，每个节点里面都包含大厂面经、学习笔记、源码讲义、实战项目、讲解视频，并且后续会持续更新**！！