修正多显卡问题

Hu Chunming
1 parent 4613ed54
Showing 11 changed files with 211 additions and 224 deletions
src/ai_platform/MultiSourceProcess.cpp
src/ai_platform/MultiSourceProcess.h
src/ai_platform/SourceSingleton.hpp
src/demo/demo.cpp
src/reprocessing_module/save_snapshot_reprocessing.cpp
src/reprocessing_module/save_snapshot_reprocessing.h
src/reprocessing_module/snapshot_reprocessing.cpp
src/util/JpegUtil.cpp
src/util/JpegUtil.h
src/util/vpc_util.cpp
src/util/vpc_util.h
@@ -9,7 +9,6 @@
 #include "../decoder/interface/DecoderManager.h"
 #include "../decoder/interface/utiltools.hpp"
-#include "../util/vpc_util.h"
 #include "../util/crop_process.h"
 #include "../helpers/time_helper.hpp"
 #include "../helpers/os_helper.hpp"
@@ -17,6 +16,7 @@
 #include "../reprocessing_module/save_snapshot_reprocessing.h"
 #include "macro_definition.h"
+#include "SourceSingleton.hpp"
 #define VEHICLE_MULTI_BOXES
@@ -59,12 +59,10 @@ void decode_finished_cbk(const void * userPtr){
 }
 CMultiSourceProcess::CMultiSourceProcess(){
-    aclInit(nullptr);
 }
 CMultiSourceProcess::~CMultiSourceProcess(){
-  dvpp_crop_release();
-  aclFinalize();
+  vpc_util.vpc_crop_release();
 }
 int CMultiSourceProcess::InitAlgorthim(tsl_aiplatform_param vptParam){
@@ -72,6 +70,8 @@ int CMultiSourceProcess::InitAlgorthim(tsl_aiplatform_param vptParam){
   set_default_logger(LogLevel(vptParam.log_level), "multi_source_process", vptParam.log_path, vptParam.log_mem, vptParam.log_mem);
   LOG_INFO("编译时间：{} {}", __DATE__, __TIME__);
+  SourceSingleton::getInstance();
+
   skip_frame_ = 5; 
   m_batch_size = 16;
@@ -93,7 +93,7 @@ int CMultiSourceProcess::InitAlgorthim(tsl_aiplatform_param vptParam){
   m_snapshot_reprocessing = snapshot_reprocessing::getInstance();
   m_save_snapshot_reprocessing = new save_snapshot_reprocessing(m_devId);
-  dvpp_crop_init(m_devId);
+  vpc_util.vpc_crop_init(m_devId);
 	m_pAlgorthimThread = new thread([](void* arg) {
 		CMultiSourceProcess* process = (CMultiSourceProcess*)arg ;
@@ -483,13 +483,13 @@ int CMultiSourceProcess::algorithm_vehicle_relult(vector&lt;DeviceMemory*&gt; vec_devM
     ImgSaveInfo saveInfo;
     saveInfo.file_path = fpath_origin;
-    saveInfo.img_info = dvpp_devMem2vpcImg(result.memPtr);
+    saveInfo.img_info = vpc_util.vpc_devMem2vpcImg(result.memPtr);
     m_save_snapshot_reprocessing->reprocessing_process_wo_locus_async(saveInfo);
-    vector<vpc_img_info> vec_obj_info_list = dvpp_crop_batch(result.memPtr, result.objs);
+    vector<vpc_img_info> vec_obj_info_list = vpc_util.vpc_crop_batch(result.memPtr, result.objs);
     if(vec_obj_info_list.size() != result.objs.size()){
       LOG_ERROR("vpc_crop size error !");
-      dvpp_imgList_release(vec_obj_info_list);
+      vpc_util.vpc_imgList_release(vec_obj_info_list);
       continue;
     }
@@ -5,6 +5,7 @@
 #include "../ai_engine_module/VPTProcess.h"
 #include "../reprocessing_module/snapshot_reprocessing.h"
 #include "../reprocessing_module/save_snapshot_reprocessing.h"
+#include "../util/vpc_util.h"
 #include <map>
 #include <mutex>
@@ -78,6 +79,8 @@ private:
   set<OBJ_KEY> m_total_snapshot_info_multi_object;
   mutex m_total_mutex;
+  VPCUtil vpc_util;
+
 #ifdef POST_USE_RABBITMQ
   mq::Manager *mq_manager_{nullptr};
 #endif
+#include "acl/acl.h"
+#include "acl/ops/acl_dvpp.h"
+
+class SourceSingleton {
+public:
+    /**************************************************
+	* 接口：getInstance
+	* 功能：获取解码器管理者实例
+	* 参数：无
+	* 返回：成功返回 解码器管理者实例， 失败返回 nullptr
+	* 备注：调用其他接口前，需要先调用该接口获取管理者实例
+	**************************************************/
+    static SourceSingleton* getInstance(){
+		static SourceSingleton* singleton = nullptr;
+		if (singleton == nullptr){
+			singleton = new SourceSingleton();
+		}
+		return singleton;
+	}
+
+    SourceSingleton(){
+        aclInit(nullptr);
+    }
+
+    ~SourceSingleton(){
+        aclFinalize();
+    }
+};
 \ No newline at end of file
@@ -499,20 +499,7 @@ string createTask(void *handle, std::vector&lt;algorithm_type_t&gt; algor_vec, int gi)
   return task_id_str;
 }
-int main(int argc, char *argv[]) {
-    printf("new test\n");
-
-    if (argc < 4) {
-    fprintf(stderr, "./xxx 0 2 10 1 ## [start_ai_id, end_ai_id) repeat_num gpu_id\n");
-    return -1;
-    }
-
-    //! load params.
-    int start_id = atoi(argv[1]);
-    int end_id = atoi(argv[2]);
-    int repeat_num = atoi(argv[3]);
-    int gpuID = atoi(argv[4]);
-
+void test_gpu(int gpuID){
     tsl_aiplatform_param vptParam;
     vptParam.gpuid = gpuID;
     vptParam.trt_serialize_file = "";
@@ -529,8 +516,7 @@ int main(int argc, char *argv[]) {
     int flag = tsl_aiplatform_init(&handle, vptParam);
     if (0 != flag) {
         printf("Init Failed! Error Code: %d\n", flag);
-        system("pause");
-        return 0;
+        return;
     } else {
         printf("Init Success\n");
     }
@@ -538,14 +524,36 @@ int main(int argc, char *argv[]) {
     std::vector<algorithm_type_t> algor_vec = {algorithm_type_t::FACE_SNAPSHOT, algorithm_type_t::HUMAN_SNAPSHOT,algorithm_type_t::ROAD_WORK_DET,
                                             algorithm_type_t::VEHICLE_SNAPSHOT, algorithm_type_t::NONMOTOR_VEHICLE_SNAPSHOT, algorithm_type_t::VIDEO_TIMING_SNAPSHOT};
-    string task_id = createTask(handle, algor_vec, 0);  
+    string task_id = createTask(handle, algor_vec, 0 + gpuID * 10);  
+    string task_id1 = createTask(handle, algor_vec, 1 + gpuID * 10);  
+    string task_id2 = createTask(handle, algor_vec, 2 + gpuID * 10);  
-    while (getchar() != 'q');
-    finish_task(handle, (char*)task_id.data(), 0);
+    // finish_task(handle, (char*)task_id.data(), 0);
+
+    // tsl_aiplatform_release(&handle);
+}
+
+int main(int argc, char *argv[]) {
+    printf("new test\n");
+
+    if (argc < 4) {
+    fprintf(stderr, "./xxx 0 2 10 1 ## [start_ai_id, end_ai_id) repeat_num gpu_id\n");
+    return -1;
+    }
+
+    //! load params.
+    int start_id = atoi(argv[1]);
+    int end_id = atoi(argv[2]);
+    int repeat_num = atoi(argv[3]);
+    int gpuID = atoi(argv[4]);
+
+    test_gpu(0);
+    test_gpu(1);
+
+    while (getchar() != 'q');
-    tsl_aiplatform_release(&handle);
-    printf("Done.\n");  
+    printf("Done.\n"); 
     return 0;
 }
 \ No newline at end of file
@@ -5,8 +5,6 @@
 #include <opencv2/imgproc/types_c.h>
 #include <algorithm>
 #include "../common/logger.hpp"
-#include "../util/JpegUtil.h"
-#include "../util/vpc_util.h"
 const bool DRAW_ON_IMG = false;
@@ -28,14 +26,14 @@ save_snapshot_reprocessing::save_snapshot_reprocessing(int devId) {
   m_save_img_thread = std::thread(save_img_thread_process, this);
   m_devId = devId;
-  DVPP_UTIL::dvpp_jpeg_init(m_devId);
+  jpegUtil.jpeg_init(m_devId);
 }
 save_snapshot_reprocessing::~save_snapshot_reprocessing(){
   // 结束线程
   bFinish = true;
   m_save_img_thread.join();
-  DVPP_UTIL::dvpp_jpeg_release();
+  jpegUtil.jpeg_release();
 }
 // 释放资源
@@ -48,7 +46,7 @@ void save_snapshot_reprocessing::save_snapshot_reprocessing_release() {
     waitforsave_img_queue.pop();
     if(!cur_image.file_path.empty()){
-      dvpp_img_release(cur_image.img_info);
+      vpc_util.vpc_img_release(cur_image.img_info);
     }
   }
@@ -96,9 +94,9 @@ void save_snapshot_reprocessing::save_img_process() {
       l.unlock();
       if(!cur_image.file_path.empty()){
-        DVPP_UTIL::dvpp_jpeg_encode(cur_image.img_info.pic_desc, cur_image.file_path);
+        jpegUtil.jpeg_encode(cur_image.img_info.pic_desc, cur_image.file_path);
       }
-      dvpp_img_release(cur_image.img_info);
+      vpc_util.vpc_img_release(cur_image.img_info);
 #ifdef POST_USE_RABBITMQ
       if (callback_ != nullptr && cur_image.json_str.length() > 0) {
@@ -16,6 +16,7 @@
 #include "../ai_platform/det_obj_header.h"
 #include "../util/vpc_util.h"
+#include "../util/JpegUtil.h"
 #ifdef POST_USE_RABBITMQ
 #include "post_reprocessing.hpp"
@@ -57,6 +58,9 @@ private:
 	bool bFinish = false;
 	int m_devId;
+	JpegUtil jpegUtil;
+	VPCUtil vpc_util;
+
 #ifdef POST_USE_RABBITMQ
 	callback_t callback_;
 	std::shared_ptr<mq::post_rabbitmq_reprocessing> rbmq_handler_;
@@ -150,7 +150,7 @@ void snapshot_reprocessing::filter_vehicle(vector&lt;DeviceMemory*&gt; vec_devMem, vec
 	int task_idx = 0;
 	for (auto memPtr : vec_devMem){
-		string taskid = memPtr ->getId();
+		string taskid = memPtr->getId();
 		int effective_count = 0;
 		int effective_idx = 0;
@@ -5,110 +5,102 @@
 using namespace std;
-namespace DVPP_UTIL {
-    int32_t deviceId_;
-    aclrtContext context_;
-    aclrtStream stream_;
-    acldvppChannelDesc *dvppChannelDesc_;
+int JpegUtil::jpeg_init(int32_t devId){
+    deviceId_ = devId;
-    int dvpp_jpeg_init(int32_t devId){
-        deviceId_ = devId;
+    aclError ret;
+    /* 2.Run the management resource application, including Device, Context, Stream */
+    aclrtSetDevice(deviceId_);
+    aclrtCreateContext(&context_, deviceId_);
+    aclrtCreateStream(&stream_);
-        aclError ret;
-        /* 2.Run the management resource application, including Device, Context, Stream */
-        aclrtSetDevice(deviceId_);
-        aclrtCreateContext(&context_, deviceId_);
-        aclrtCreateStream(&stream_);
+    // channel  准备
+    dvppChannelDesc_ = acldvppCreateChannelDesc();
+    ret = acldvppCreateChannel(dvppChannelDesc_);
+}
-        // channel  准备
-        dvppChannelDesc_ = acldvppCreateChannelDesc();
-        ret = acldvppCreateChannel(dvppChannelDesc_);
-    }
+void JpegUtil::jpeg_release(){
+    aclError ret;
+    ret = aclrtSetDevice(deviceId_);
+    aclrtSetCurrentContext(context_);
-    void dvpp_jpeg_release(){
-        aclError ret;
-        ret = aclrtSetDevice(deviceId_);
-        aclrtSetCurrentContext(context_);
-
-        ret = acldvppDestroyChannel(dvppChannelDesc_);
-        ret = acldvppDestroyChannelDesc(dvppChannelDesc_);
-        dvppChannelDesc_ = nullptr;
-
-        if (stream_ != nullptr) {
-            ret = aclrtDestroyStream(stream_);
-            if (ret != ACL_SUCCESS) {
-                printf("destroy stream failed");
-            }
-            stream_ = nullptr;
-        }
-        printf("end to destroy stream");
-
-        if (context_ != nullptr) {
-            ret = aclrtDestroyContext(context_);
-            if (ret != ACL_SUCCESS) {
-                printf("destroy context failed");
-            }
-            context_ = nullptr;
-        }
-        printf("end to destroy context");
+    ret = acldvppDestroyChannel(dvppChannelDesc_);
+    ret = acldvppDestroyChannelDesc(dvppChannelDesc_);
+    dvppChannelDesc_ = nullptr;
-        ret = aclrtResetDevice(deviceId_);
+    if (stream_ != nullptr) {
+        ret = aclrtDestroyStream(stream_);
         if (ret != ACL_SUCCESS) {
-            printf("reset device failed");
+            printf("destroy stream failed");
         }
-        printf("end to reset device is %d", deviceId_);
+        stream_ = nullptr;
     }
+    printf("end to destroy stream");
-    int32_t dvpp_jpege_save(char* pcData , uint32_t dataLen, string out_file_name)
-    {
-        FILE* fd = nullptr;
-        fd = fopen(out_file_name.c_str(), "wb");
-        if (fd == nullptr) {
-            printf("open output file err\n");
-            return 1;
+    if (context_ != nullptr) {
+        ret = aclrtDestroyContext(context_);
+        if (ret != ACL_SUCCESS) {
+            printf("destroy context failed");
         }
-
-        fwrite(pcData, dataLen, 1, fd);
-        fflush(fd);
-
-        fclose(fd);
-        return 0;
+        context_ = nullptr;
     }
+    printf("end to destroy context");
-    void dvpp_jpeg_encode(acldvppPicDesc *encodeInputDesc_, string out_file_name){
-
-        aclError aclRet ;
-        aclRet = aclrtSetDevice(deviceId_);
-        aclrtSetCurrentContext(context_);
-
-        // 7. 创建图片编码配置数据，设置编码质量
-        // 编码质量范围[0, 100]，其中level 0编码质量与level 100差不多，而在[1, 100]内数值越小输出图片质量越差。
-        acldvppJpegeConfig *jpegeConfig_ = acldvppCreateJpegeConfig();
-        acldvppSetJpegeConfigLevel(jpegeConfig_, 100);
-
-        // 8. 申请输出内存，申请Device内存encodeOutBufferDev_,存放编码后的输出数据
-        uint32_t outBufferSize= 0;
-        int ret = acldvppJpegPredictEncSize(encodeInputDesc_, jpegeConfig_, &outBufferSize);
-        void *encodeOutBufferDev_ = nullptr;
-        ret = acldvppMalloc(&encodeOutBufferDev_, outBufferSize);
-
-        // 9. 执行异步编码，再调用aclrtSynchronizeStream接口阻塞程序运行，直到指定Stream中的所有任务都完成
-        aclRet = acldvppJpegEncodeAsync(dvppChannelDesc_, encodeInputDesc_, encodeOutBufferDev_, &outBufferSize, jpegeConfig_, stream_);
-        aclRet = aclrtSynchronizeStream(stream_);
-
-        // 该模式下，由于处理结果在Device侧，因此需要调用内存复制接口传输结果数据后，再释放Device侧内存
-        // 申请Host内存outputHostBuffer 
-        void* outputHostBuffer = malloc(outBufferSize);
-        // 通过aclrtMemcpy接口将Device的处理结果数据传输到Host
-        aclRet = aclrtMemcpy(outputHostBuffer, outBufferSize, encodeOutBufferDev_, outBufferSize, ACL_MEMCPY_DEVICE_TO_HOST);
-        // 释放掉输入输出的device内存
-        (void)acldvppFree(encodeOutBufferDev_);
-        encodeOutBufferDev_ = nullptr;
-        // 数据使用完成后，释放内存
-        dvpp_jpege_save((char*)outputHostBuffer, outBufferSize, out_file_name);
-        free(outputHostBuffer);
-        outputHostBuffer = nullptr;
+    ret = aclrtResetDevice(deviceId_);
+    if (ret != ACL_SUCCESS) {
+        printf("reset device failed");
+    }
+    printf("end to reset device is %d", deviceId_);
+}
+
+int32_t JpegUtil::jpege_save(char* pcData , uint32_t dataLen, string out_file_name)
+{
+    FILE* fd = nullptr;
+    fd = fopen(out_file_name.c_str(), "wb");
+    if (fd == nullptr) {
+        printf("open output file err\n");
+        return 1;
     }
+    fwrite(pcData, dataLen, 1, fd);
+    fflush(fd);
+
+    fclose(fd);
+    return 0;
+}
+
+void JpegUtil::jpeg_encode(acldvppPicDesc *encodeInputDesc_, string out_file_name){
+
+    aclError aclRet ;
+    aclRet = aclrtSetDevice(deviceId_);
+    aclrtSetCurrentContext(context_);
+
+    // 7. 创建图片编码配置数据，设置编码质量
+    // 编码质量范围[0, 100]，其中level 0编码质量与level 100差不多，而在[1, 100]内数值越小输出图片质量越差。
+    acldvppJpegeConfig *jpegeConfig_ = acldvppCreateJpegeConfig();
+    acldvppSetJpegeConfigLevel(jpegeConfig_, 100);
+
+    // 8. 申请输出内存，申请Device内存encodeOutBufferDev_,存放编码后的输出数据
+    uint32_t outBufferSize= 0;
+    int ret = acldvppJpegPredictEncSize(encodeInputDesc_, jpegeConfig_, &outBufferSize);
+    void *encodeOutBufferDev_ = nullptr;
+    ret = acldvppMalloc(&encodeOutBufferDev_, outBufferSize);
+
+    // 9. 执行异步编码，再调用aclrtSynchronizeStream接口阻塞程序运行，直到指定Stream中的所有任务都完成
+    aclRet = acldvppJpegEncodeAsync(dvppChannelDesc_, encodeInputDesc_, encodeOutBufferDev_, &outBufferSize, jpegeConfig_, stream_);
+    aclRet = aclrtSynchronizeStream(stream_);
+
+    // 该模式下，由于处理结果在Device侧，因此需要调用内存复制接口传输结果数据后，再释放Device侧内存
+    // 申请Host内存outputHostBuffer 
+    void* outputHostBuffer = malloc(outBufferSize);
+    // 通过aclrtMemcpy接口将Device的处理结果数据传输到Host
+    aclRet = aclrtMemcpy(outputHostBuffer, outBufferSize, encodeOutBufferDev_, outBufferSize, ACL_MEMCPY_DEVICE_TO_HOST);
+    // 释放掉输入输出的device内存
+    (void)acldvppFree(encodeOutBufferDev_);
+    encodeOutBufferDev_ = nullptr;
+    // 数据使用完成后，释放内存
+    jpege_save((char*)outputHostBuffer, outBufferSize, out_file_name);
+    free(outputHostBuffer);
+    outputHostBuffer = nullptr;
 }
 \ No newline at end of file
@@ -9,13 +9,22 @@
 using namespace std;
-namespace DVPP_UTIL {
+class JpegUtil {
+public:
+    int jpeg_init(int32_t deviceId_);
-    int dvpp_jpeg_init(int32_t deviceId_);
+    void jpeg_release();
-    void dvpp_jpeg_release();
+    void jpeg_encode(acldvppPicDesc *encodeInputDesc_, string out_file_name);
-    void dvpp_jpeg_encode(acldvppPicDesc *encodeInputDesc_, string out_file_name);
-}
+private:
+    int32_t jpege_save(char* pcData , uint32_t dataLen, string out_file_name);
+
+private:
+    int32_t deviceId_;
+    aclrtContext context_;
+    aclrtStream stream_;
+    acldvppChannelDesc *dvppChannelDesc_;
+};
 #endif  //  __JPEG_UTIL_H__
 \ No newline at end of file
@@ -21,54 +21,9 @@
 #define WARN_LOG(fmt, args...) fprintf(stdout, "[WARN]  " fmt "\n", ##args)
 #define ERROR_LOG(fmt, args...) fprintf(stderr, "[ERROR]  " fmt "\n", ##args)
-typedef enum Result {
-    SUCCESS = 0,
-    FAILED = 1
-} Result;
-
-typedef struct PicDesc {
-    std::string picName;
-    int width;
-    int height;
-}PicDesc;
-
-typedef struct CropPicDesc {
-    std::string picName;
-    int left;
-    int top;
-    int width;
-    int height;
-}CropPicDesc;
-
-int32_t deviceId_;
-aclrtContext context_;
-aclrtStream stream_;
-
-aclvdecChannelDesc *vdecChannelDesc_;
-acldvppStreamDesc *streamInputDesc_;
-acldvppPicDesc *picOutputDesc_;
-acldvppChannelDesc *dvppChannelDesc_;
-uint32_t inBufferSize;
-uint32_t inputWidth;
-uint32_t inputHeight;
-aclrtRunMode runMode;
-
-PicDesc inPicDesc;
-CropPicDesc outPicDesc;
-
-
-
-uint32_t AlignmentHelper(uint32_t origSize, uint32_t alignment)
-{
-    if (alignment == 0) {
-        return 0;
-    }
-    uint32_t alignmentH = alignment - 1;
-    return (origSize + alignmentH) / alignment * alignment;
-}
-void dvpp_crop_release()
+void VPCUtil::vpc_crop_release()
 {
     aclError ret;
     // ret = aclrtSetDevice(deviceId_);
@@ -103,33 +58,12 @@ void dvpp_crop_release()
 }
-int dvpp_crop(acldvppPicDesc *input_pic_desc)
+int VPCUtil::vpc_crop(acldvppPicDesc *input_pic_desc, video_object_info obj)
 {
-    /* 1.ACL initialization  */
-    // aclInit(nullptr);
-
-    /* 2.Run the management resource application, including Device, Context, Stream */
-    aclrtSetDevice(deviceId_);
-    aclrtCreateContext(&context_, deviceId_);
-    aclrtCreateStream(&stream_);
-    aclrtGetRunMode(&runMode);
-
-    /* 3.Initialization parameters: width and height of the original image, crop width and height. 
-     * Initialize folder: Output folder */
-
-    outPicDesc={"output.jpg", 100, 100, 300, 300};
-
-    const int orimodelInputWidth = outPicDesc.width; // cur model shape is 224 * 224
-    const int orimodelInputHeight = outPicDesc.height;
-    const int modelInputLeft = outPicDesc.left; // cur model shape is 224 * 224
-    const int modelInputTop = outPicDesc.top;
-
-    /* 4. Channel description information when creating image data processing channels, 
-     * dvppChannelDesc_ is acldvppChannelDesc type */
-    dvppChannelDesc_ = acldvppCreateChannelDesc();
-
-    /* 5. Create the image data processing channel. */
-    acldvppCreateChannel(dvppChannelDesc_);
+    const int orimodelInputWidth = obj.right - obj.left; // cur model shape is 224 * 224
+    const int orimodelInputHeight = obj.bottom - obj.top;
+    const int modelInputLeft = obj.left; // cur model shape is 224 * 224
+    const int modelInputTop = obj.top;
     // GetPicDevBuffer4JpegD
     int modelInputWidth = (orimodelInputWidth + 15) / 16 * 16;
@@ -161,8 +95,6 @@ int dvpp_crop(acldvppPicDesc *input_pic_desc)
     ret = aclrtSynchronizeStream(stream_);
-    DVPP_UTIL::dvpp_jpeg_encode(vpcOutputDesc_, "output.jpg");
-
     /* DestroycropResource */
     (void)acldvppDestroyRoiConfig(cropArea_);
     cropArea_ = nullptr;
@@ -174,10 +106,10 @@ int dvpp_crop(acldvppPicDesc *input_pic_desc)
 	    vpcOutBufferDev_ = nullptr;
     }
-    return SUCCESS;
+    return 0;
 }
-int dvpp_crop_init(int32_t devId){
+int VPCUtil::vpc_crop_init(int32_t devId){
     deviceId_ = devId;
     aclError ret;
@@ -185,7 +117,6 @@ int dvpp_crop_init(int32_t devId){
     aclrtSetDevice(deviceId_);
     aclrtCreateContext(&context_, deviceId_);
     aclrtCreateStream(&stream_);
-    aclrtGetRunMode(&runMode);
     // channel  准备
     dvppChannelDesc_ = acldvppCreateChannelDesc();
@@ -193,7 +124,7 @@ int dvpp_crop_init(int32_t devId){
 }
-void check_coordinate(uint32_t& cropLeftOffset, uint32_t& cropRightOffset, uint32_t& cropTopOffset, uint32_t& cropBottomOffset, uint32_t width, uint32_t height){
+static void check_coordinate(uint32_t& cropLeftOffset, uint32_t& cropRightOffset, uint32_t& cropTopOffset, uint32_t& cropBottomOffset, uint32_t width, uint32_t height){
     if (cropLeftOffset < 0){
         cropLeftOffset = 0;
     }
@@ -209,7 +140,7 @@ void check_coordinate(uint32_t&amp; cropLeftOffset, uint32_t&amp; cropRightOffset, uint3
 }
-vector<vpc_img_info> dvpp_crop_batch(DeviceMemory *devMem, vector<video_object_info> objs){
+vector<vpc_img_info> VPCUtil::vpc_crop_batch(DeviceMemory *devMem, vector<video_object_info> objs){
     vector<vpc_img_info> vec_img_info;
@@ -324,7 +255,7 @@ vector&lt;vpc_img_info&gt; dvpp_crop_batch(DeviceMemory *devMem, vector&lt;video_object_i
         // vpcOutputDesc = acldvppGetPicDesc(outputBatchPicDesc_, i);
         // string file_name = "output";
         // file_name = file_name + to_string(i) + ".jpg";
-        // dvpp_jpeg_encode(vpcOutputDesc, file_name);
+        // vpc_jpeg_encode(vpcOutputDesc, file_name);
     }
     aclrtSetCurrentContext(context_);
@@ -365,7 +296,7 @@ vector&lt;vpc_img_info&gt; dvpp_crop_batch(DeviceMemory *devMem, vector&lt;video_object_i
     return vec_img_info;
 }
-vpc_img_info dvpp_devMem2vpcImg(DeviceMemory *devMem){
+vpc_img_info VPCUtil::vpc_devMem2vpcImg(DeviceMemory *devMem){
     vpc_img_info img_info ;
     int nBufferSize = devMem->getSize();
@@ -398,7 +329,7 @@ vpc_img_info dvpp_devMem2vpcImg(DeviceMemory *devMem){
     return img_info;
 }
-void dvpp_img_release(vpc_img_info img_info){
+void VPCUtil::vpc_img_release(vpc_img_info img_info){
     if(img_info.pic_desc != nullptr){
         void *outputDataDev = acldvppGetPicDescData(img_info.pic_desc);
         acldvppFree(outputDataDev);
@@ -406,9 +337,9 @@ void dvpp_img_release(vpc_img_info img_info){
     }
 }
-void dvpp_imgList_release(vector<vpc_img_info>& imgList){
+void VPCUtil::vpc_imgList_release(vector<vpc_img_info>& imgList){
     for(int i=0; i < imgList.size(); i++){
-        dvpp_img_release(imgList[i]);
+        vpc_img_release(imgList[i]);
     }
     imgList.clear();
 }
 \ No newline at end of file
@@ -22,17 +22,31 @@ struct vpc_img_info{
 class DeviceMemory;
-int dvpp_crop(acldvppPicDesc *input_pic_desc);
+class VPCUtil {
-int dvpp_crop_init(int32_t devId);
+public:
+    int vpc_crop(acldvppPicDesc *input_pic_desc, video_object_info obj);
-vector<vpc_img_info> dvpp_crop_batch(DeviceMemory *devMem, vector<video_object_info> objs);
+    int vpc_crop_init(int32_t devId);
-void dvpp_img_release(vpc_img_info );
-void dvpp_imgList_release(vector<vpc_img_info>& );
+    vector<vpc_img_info> vpc_crop_batch(DeviceMemory *devMem, vector<video_object_info> objs);
+
+    void vpc_img_release(vpc_img_info );
+
+    void vpc_imgList_release(vector<vpc_img_info>& );
+
+    void vpc_crop_release();
+
+    vpc_img_info vpc_devMem2vpcImg(DeviceMemory *devMem);
+
+private:
+    int32_t deviceId_;
+    aclrtContext context_;
+    aclrtStream stream_;
+
+    acldvppChannelDesc *dvppChannelDesc_;
+};
-void dvpp_crop_release();
-vpc_img_info dvpp_devMem2vpcImg(DeviceMemory *devMem);
 #endif  //___VPC_UTIL_H__
 \ No newline at end of file