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镜头解析

更新时间：2025-02-19 09:14:13
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本文档为您介绍镜头解析常用语言和常见情况的示例代码。

说明

  • 您可以进入在线咨询获取在线人工帮助。

  • 阿里云视觉智能开放平台视觉AI能力API接入、接口使用或问题咨询等，请通过钉钉群（23109592）加入阿里云视觉智能开放平台咨询群联系我们。

能力介绍

关于镜头解析的功能介绍以及具体调用参数说明，请参见镜头解析。

SDK包安装

常见语言的SDK依赖包信息，请参见SDK总览。

配置环境变量

配置环境变量ALIBABA_CLOUD_ACCESS_KEY_ID和ALIBABA_CLOUD_ACCESS_KEY_SECRET。

重要

  • 阿里云账号AccessKey拥有所有API的访问权限，建议您使用RAM用户进行API访问或日常运维，具体操作，请参见创建RAM用户。

  • 请不要将AccessKey ID和AccessKey Secret保存到工程代码里，否则可能导致AccessKey泄露，威胁您账号下所有资源的安全。

  • Linux和macOS系统配置方法

    1. 在IntelliJ IDEA中打开终端Terminal。

    2. 执行以下命令，配置环境变量。

      <access_key_id>需替换为您RAM用户的AccessKey ID，<access_key_secret>替换为您RAM用户的AccessKey Secret。如果后续需要进行更多权限相关的配置，具体操作请参见使用RAM Policy控制访问权限。

      export ALIBABA_CLOUD_ACCESS_KEY_ID=<access_key_id> 
export ALIBABA_CLOUD_ACCESS_KEY_SECRET=<access_key_secret>

  • Windows系统配置方法

    新建环境变量文件，添加环境变量ALIBABA_CLOUD_ACCESS_KEY_ID和ALIBABA_CLOUD_ACCESS_KEY_SECRET，并写入已准备好的AccessKey ID和AccessKey Secret。然后重启Windows系统。本操作以Windows 10为例进行说明。

    1. 打开文件资源管理器，在此电脑上右键单击属性。

    2. 在右侧导航栏，单击高级系统配置。

    3. 在系统属性对话框的高级页签下，单击环境变量。

    4. 在环境变量对话框中，单击新建(W)。image.png

    5. 在弹出的新建系统变量对话框中，添加环境变量ALIBABA_CLOUD_ACCESS_KEY_ID和ALIBABA_CLOUD_ACCESS_KEY_SECRET，并写入已准备好的AccessKey ID和AccessKey Secret。

    6. 重启Windows系统，使配置生效。

示例代码

文件在上海地域OSS

该能力常用语言查询异步任务结果的示例代码，请参见查询异步任务结果。

Java
Python
PHP
Node.js
Go
C#
/*
引入依赖包
<!-- https://mvnrepository.com/artifact/com.aliyun/videorecog20200320 -->
<dependency>
      <groupId>com.aliyun</groupId>
      <artifactId>videorecog20200320</artifactId>
      <version>${aliyun.videorecog.version}</version>
</dependency>
*/

import com.aliyun.tea.TeaException;
import com.aliyun.tea.TeaModel;
import com.aliyun.videorecog20200320.models.DetectVideoShotResponse;

public class DetectVideoShot {

    public static com.aliyun.videorecog20200320.Client createClient(String accessKeyId, String accessKeySecret) throws Exception {
        /*
          初始化配置对象com.aliyun.teaopenapi.models.Config
          Config对象存放 AccessKeyId、AccessKeySecret、endpoint等配置
         */
         com.aliyun.teaopenapi.models.Config config = new com.aliyun.teaopenapi.models.Config()
                .setAccessKeyId(accessKeyId)
                .setAccessKeySecret(accessKeySecret);
        // 访问的域名
        config.endpoint = "videorecog.cn-shanghai.aliyuncs.com";
        return new com.aliyun.videorecog20200320.Client(config);
    }

    public static void main(String[] args_) throws Exception {
        // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html
        // 如果您使用的是RAM用户的AccessKey，还需要为子账号授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html
        // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行代码示例前必须先配置环境变量。
        String accessKeyId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
        String accessKeySecret = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET"); 
        com.aliyun.videorecog20200320.Client client = DetectVideoShot.createClient(accessKeyId, accessKeySecret);
        com.aliyun.videorecog20200320.models.DetectVideoShotRequest detectVideoShotRequest = new com.aliyun.videorecog20200320.models.DetectVideoShotRequest()
                .setVideoUrl("http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4");
        com.aliyun.teautil.models.RuntimeOptions runtime = new com.aliyun.teautil.models.RuntimeOptions();
        try {
            DetectVideoShotResponse detectVideoShotResponse = client.detectVideoShotWithOptions(detectVideoShotRequest, runtime);
            // 获取整体结果
            System.out.println(com.aliyun.teautil.Common.toJSONString(TeaModel.buildMap(detectVideoShotResponse)));
            // 获取单个字段
            System.out.println(detectVideoShotResponse.getBody().getData());
        } catch (TeaException teaException) {
            // 获取整体报错信息
            System.out.println(com.aliyun.teautil.Common.toJSONString(teaException));
            // 获取单个字段
            System.out.println(teaException.getCode());
        }
    }
}
# -*- coding: utf-8 -*-
# 引入依赖包
# pip install alibabacloud_videorecog20200320

import os
from alibabacloud_tea_openapi.models import Config
from alibabacloud_tea_util.models import RuntimeOptions
from alibabacloud_videorecog20200320.client import Client
from alibabacloud_videorecog20200320.models import DetectVideoShotRequest


config = Config(
  # 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html
  # 如果您用的是RAM用户的AccessKey，还需要为RAM用户授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html
  # 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行代码示例前必须先配置环境变量。
  access_key_id=os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_ID'),
  access_key_secret=os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_SECRET'),
  # 访问的域名
  endpoint='videorecog.cn-shanghai.aliyuncs.com',
  # 访问的域名对应的region
  region_id='cn-shanghai'
)
detect_video_shot_request = DetectVideoShotRequest(
  video_url='http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot2.mp4'
)
runtime = RuntimeOptions()
try:
  # 初始化Client
  client = Client(config)
  response = client.detect_video_shot_with_options(detect_video_shot_request, runtime)
  # 获取整体结果
  print(response.body)
except Exception as error:
  # 获取整体报错信息
  print(error)
  # 获取单个字段
  print(error.code)
  # tips: 可通过error.__dict__查看属性名称
<?php

//安装依赖包
//composer require alibabacloud/videorecog-20200320
  
use AlibabaCloud\SDK\Videorecog\V20200320\Videorecog;
use AlibabaCloud\Tea\Utils\Utils;
use \Exception;
use Darabonba\OpenApi\Models\Config;
use AlibabaCloud\SDK\Videorecog\V20200320\Models\DetectVideoShotRequest;
use AlibabaCloud\Tea\Utils\Utils\RuntimeOptions;

class DetectVideoShot {

    /**
     * 使用AK&SK初始化账号Client
     * @param string $accessKeyId
     * @param string $accessKeySecret
     * @return Videorecog Client
     */
    public static function createClient($accessKeyId, $accessKeySecret){
        //初始化配置对象Darabonba\OpenApi\Models\Config。
        //Config对象存放accessKeyId、accessKeySecret、endpoint等配置
        $config = new Config([
            "accessKeyId" => $accessKeyId,
            "accessKeySecret" => $accessKeySecret
        ]);
        // 访问的域名
        $config->endpoint = "videorecog.cn-shanghai.aliyuncs.com";
        return new Videorecog($config);
    }
    /**
     * @param string[] $args
     * @return void
     */
    public static function main($args){
        // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html。
        // 如果您用的是RAM用户的AccessKey，还需要为RAM用户授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html。
        // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行示例前必须先配置环境变量。    
        $accessKeyId = getenv('ALIBABA_CLOUD_ACCESS_KEY_ID');      
        $accessKeySecret = getenv('ALIBABA_CLOUD_ACCESS_KEY_SECRET');
        $client = self::createClient($accessKeyId, $accessKeySecret);
        $detectVideoShotRequest = new DetectVideoShotRequest([
            "videoUrl" => "http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4"
        ]);
        $runtime = new RuntimeOptions([]);
        try {
            $resp = $client->detectVideoShotWithOptions($detectVideoShotRequest, $runtime);
            # 获取整体结果
            echo Utils::toJSONString($resp->body);
        } catch (Exception $exception) {
            # 获取整体报错信息
            echo Utils::toJSONString($exception);
            # 获取单个字段
            echo $exception->getCode();
        }
    }
}
$path = __DIR__ . \DIRECTORY_SEPARATOR . '..' . \DIRECTORY_SEPARATOR . 'vendor' . \DIRECTORY_SEPARATOR . 'autoload.php';
if (file_exists($path)) {
    require_once $path;
}
//$argv是预留的数组入参参数，无实际意义，无需进行修改
DetectVideoShot::main(array_slice($argv, 1));
// 安装依赖包
// npm install @alicloud/videorecog20200320
const VideorecogClient = require('@alicloud/videorecog20200320');
const OpenapiClient = require('@alicloud/openapi-client');
const TeaUtil = require('@alicloud/tea-util');

let config = new OpenapiClient.Config({
    // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html。
    // 如果您用的是RAM用户AccessKey，还需要为RAM用户授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html。
    // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行示例前必须先配置环境变量。 
    accessKeyId: process.env.ALIBABA_CLOUD_ACCESS_KEY_ID,   
    accessKeySecret: process.env.ALIBABA_CLOUD_ACCESS_KEY_SECRET
});
// 访问的域名
config.endpoint = `videorecog.cn-shanghai.aliyuncs.com`;
const client = new VideorecogClient.default(config);
let detectVideoShotRequest = new VideorecogClient.DetectVideoShotRequest({
  videoUrl: "http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4",
});
let runtime = new TeaUtil.RuntimeOptions({ });
client.detectVideoShotWithOptions(detectVideoShotRequest, runtime)
  .then(function(detectVideoShotResponse) {
    // 获取整体结果
    console.log(detectVideoShotResponse);
    // 获取单个字段
    console.log(detectVideoShotResponse.body.data);
  }, function(error) {
    // 获取整体报错信息
    console.log(error);
    // 获取单个字段
    console.log(error.data.Code);
  })
/**
依赖github.com/alibabacloud-go/videorecog-20200320/v2
建议使用go mod tidy安装依赖
 */

import (
	"fmt"
	openapi "github.com/alibabacloud-go/darabonba-openapi/v2/client"
	util "github.com/alibabacloud-go/tea-utils/v2/service"
	"github.com/alibabacloud-go/tea/tea"
	videorecog20200320 "github.com/alibabacloud-go/videorecog-20200320/v2/client"
)

func main() {
     // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html。
     // 如果您用的是RAM用户的AccessKey，还需要为RAM用户授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html。
     // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行示例前必须先配置环境变量。  
     accessKeyId := os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_ID")  
     accessKeySecret := os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET")
     // 初始化配置对象 &openapi.Config。Config对象存放AccessKeyId、AccessKeySecret、Endpoint等配置。
     config := &openapi.Config{
          AccessKeyId: tea.String(accessKeyId),
          AccessKeySecret: tea.String(accessKeySecret)
	   }
	// 访问的域名
	config.Endpoint = tea.String("videorecog.cn-shanghai.aliyuncs.com")
	client, err := videorecog20200320.NewClient(config)
	if err != nil {
		panic(err)
	}
	detectVideoShotRequest := &videorecog20200320.DetectVideoShotRequest{
		VideoUrl: tea.String("http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4"),
	}
	runtime := &util.RuntimeOptions{}
	detectVideoShotResponse, err := client.DetectVideoShotWithOptions(detectVideoShotRequest, runtime)
	if err != nil {
		// 获取整体报错信息
		fmt.Println(err.Error())
	} else {
		// 获取整体结果
		fmt.Println(detectVideoShotResponse)
	}
}
// 安装依赖包
// dotnet add package AlibabaCloud.SDK.Videorecog20200320
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;
using AlibabaCloud.SDK.Videorecog20200320.Models;
using Tea;
using Tea.Utils;

namespace AlibabaCloud.SDK.Sample
{
    public class Sample
    {
      /**
          * 使用AK&SK初始化账号Client
          * @param accessKeyId
          * @param accessKeySecret
          * @return Client
          * @throws Exception
      */
        public static AlibabaCloud.SDK.Videorecog20200320.Client CreateClient(string accessKeyId, string accessKeySecret)
        {
            AlibabaCloud.OpenApiClient.Models.Config config = new AlibabaCloud.OpenApiClient.Models.Config
            {
              AccessKeyId = accessKeyId,
              AccessKeySecret = accessKeySecret,
            };
            // 访问的域名
            config.Endpoint = "videorecog.cn-shanghai.aliyuncs.com";
            return new AlibabaCloud.SDK.Videorecog20200320.Client(config);
        }
        public static void Main(string[] args)
        {
            // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html
            // 如果您使用的是RAM用户的AccessKey，还需要为子账号授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html
            // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行代码示例前必须先配置环境变量。
            AlibabaCloud.SDK.Videorecog20200320.Client client = CreateClient(System.Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID"), System.Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET"));
            AlibabaCloud.SDK.Videorecog20200320.Models.DetectVideoShotRequest detectVideoShotRequest = new AlibabaCloud.SDK.Videorecog20200320.Models.DetectVideoShotRequest
            {
                VideoUrl = "http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4",
            };
            //segmentGreenScreenVideoAdvanceRequest.VideoURLObject = stream;
            AlibabaCloud.TeaUtil.Models.RuntimeOptions runtime = new AlibabaCloud.TeaUtil.Models.RuntimeOptions();
            try
            {
                AlibabaCloud.SDK.Videorecog20200320.Models.DetectVideoShotResponse detectVideoShotResponse = client.DetectVideoShotWithOptions(detectVideoShotRequest, runtime);
                // 获取整体结果
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.ToJSONString(detectVideoShotResponse.Body));
                // 获取单个字段
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.ToJSONString(detectVideoShotResponse.Body.Data));
            }
            catch (TeaException error)
            {
                // 如有需要，请打印 error
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.AssertAsString(error.Message));
            }
            catch (Exception _error)
            {
                TeaException error = new TeaException(new Dictionary<string, object>
              {
                { "message", _error.Message }
              });
                // 如有需要，请打印 error
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.AssertAsString(error.Message));
            }
        }
    }
}

文件在本地或可访问的URL

该能力常用语言查询异步任务结果的示例代码，请参见查询异步任务结果。

Java
Python
PHP
Node.js
Go
C#
/*
引入依赖包
<!-- https://mvnrepository.com/artifact/com.aliyun/videorecog20200320 -->
<dependency>
      <groupId>com.aliyun</groupId>
      <artifactId>videorecog20200320</artifactId>
      <version>${aliyun.videorecog.version}</version>
</dependency>
*/

import com.aliyun.tea.TeaException;
import com.aliyun.tea.TeaModel;
import com.aliyun.videorecog20200320.models.DetectVideoShotResponse;
import java.io.InputStream;
import java.net.URL;

public class DetectVideoShot {

    public static com.aliyun.videorecog20200320.Client createClient(String accessKeyId, String accessKeySecret) throws Exception {
        /*
          初始化配置对象com.aliyun.teaopenapi.models.Config
          Config对象存放 AccessKeyId、AccessKeySecret、endpoint等配置
         */
         com.aliyun.teaopenapi.models.Config config = new com.aliyun.teaopenapi.models.Config()
                .setAccessKeyId(accessKeyId)
                .setAccessKeySecret(accessKeySecret);
        // 访问的域名
        config.endpoint = "videorecog.cn-shanghai.aliyuncs.com";
        return new com.aliyun.videorecog20200320.Client(config);
    }

    public static void main(String[] args_) throws Exception {
        // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html
        // 如果您使用的是RAM用户的AccessKey，还需要为子账号授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html
        // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行代码示例前必须先配置环境变量。
        String accessKeyId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
        String accessKeySecret = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET"); 
        com.aliyun.videorecog20200320.Client client = DetectVideoShot.createClient(accessKeyId, accessKeySecret);
        // 场景一，使用本地文件
        // InputStream inputStream = new FileInputStream(new File("/tmp/detectVideoShot.mp4"));
        // 场景二，使用任意可访问的url
        URL url = new URL("http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4");
        InputStream inputStream = url.openConnection().getInputStream();
        com.aliyun.videorecog20200320.models.DetectVideoShotAdvanceRequest detectVideoShotAdvanceRequest = new com.aliyun.videorecog20200320.models.DetectVideoShotAdvanceRequest()
                .setVideoUrlObject(inputStream);
        com.aliyun.teautil.models.RuntimeOptions runtime = new com.aliyun.teautil.models.RuntimeOptions();
        try {
            DetectVideoShotResponse detectVideoShotResponse = client.detectVideoShotAdvance(detectVideoShotAdvanceRequest, runtime);
            // 获取整体结果
            System.out.println(com.aliyun.teautil.Common.toJSONString(TeaModel.buildMap(detectVideoShotResponse)));
            // 获取单个字段
            System.out.println(detectVideoShotResponse.getBody().getData());
        } catch (TeaException teaException) {
            // 获取整体报错信息
            System.out.println(com.aliyun.teautil.Common.toJSONString(teaException));
            // 获取单个字段
            System.out.println(teaException.getCode());
        }
    }
}
# -*- coding: utf-8 -*-
# 引入依赖包
# pip install alibabacloud_videorecog20200320

import os
import io
from urllib.request import urlopen
from alibabacloud_tea_openapi.models import Config
from alibabacloud_tea_util.models import RuntimeOptions
from alibabacloud_videorecog20200320.client import Client
from alibabacloud_videorecog20200320.models import DetectVideoShotAdvanceRequest


config = Config(
  # 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html
  # 如果您用的是RAM用户的AccessKey，还需要为RAM用户授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html
  # 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行代码示例前必须先配置环境变量。
  access_key_id=os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_ID'),
  access_key_secret=os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_SECRET'),
  # 访问的域名
  endpoint='videorecog.cn-shanghai.aliyuncs.com',
  # 访问的域名对应的region
  region_id='cn-shanghai'
)

detect_video_shot_request = DetectVideoShotAdvanceRequest()
#场景一：文件在本地
#stream = open(r'/tmp/DetectVideoShot1.mp4', 'rb')
#detect_video_shot_request.video_url_object = stream

#场景二：使用任意可访问的url
url = 'http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4'
img = urlopen(url).read()
detect_video_shot_request.video_url_object = io.BytesIO(img)

runtime = RuntimeOptions()
try:
  # 初始化Client
  client = Client(config)
  response = client.detect_video_shot_advance(detect_video_shot_request, runtime)
  # 获取整体结果
  print(response.body)
except Exception as error:
  # 获取整体报错信息
  print(error)
  # 获取单个字段
  print(error.code)
  # tips: 可通过error.__dict__查看属性名称

#关闭流
#stream.close()
<?php

//安装依赖包
//composer require alibabacloud/videorecog-20200320

use AlibabaCloud\SDK\Videorecog\V20200320\Videorecog;
use AlibabaCloud\Tea\Utils\Utils;
use \Exception;
use Darabonba\OpenApi\Models\Config;
use AlibabaCloud\SDK\Videorecog\V20200320\Models\DetectVideoShotAdvanceRequest;
use AlibabaCloud\Tea\Utils\Utils\RuntimeOptions;
use GuzzleHttp\Psr7\Stream;

class DetectVideoShotAdvance {

    /**
     * 使用AK&SK初始化账号Client
     * @param string $accessKeyId
     * @param string $accessKeySecret
     * @return Videorecog Client
     */
    public static function createClient($accessKeyId, $accessKeySecret){
        //初始化配置对象Darabonba\OpenApi\Models\Config。
        //Config对象存放accessKeyId、accessKeySecret、endpoint等配置
        $config = new Config([
            "accessKeyId" => $accessKeyId,
            "accessKeySecret" => $accessKeySecret
        ]);
        // 访问的域名
        $config->endpoint = "videorecog.cn-shanghai.aliyuncs.com";
        return new Videorecog($config);
    }
    /**
     * @param string[] $args
     * @return void
     */
    public static function main($args){
        // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html。
        // 如果您用的是RAM用户的AccessKey，还需要为RAM用户授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html。
        // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行示例前必须先配置环境变量。    
        $accessKeyId = getenv('ALIBABA_CLOUD_ACCESS_KEY_ID');      
        $accessKeySecret = getenv('ALIBABA_CLOUD_ACCESS_KEY_SECRET');
        $client = self::createClient($accessKeyId, $accessKeySecret);
        // 场景一，使用本地文件
        //$file = fopen('/tmp/DetectVideoShot1.mp4', 'rb');
        //$stream = new Stream($file);
        // 场景二，使用任意可访问的url
        $file = fopen('http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4', 'rb');
        $stream = new Stream($file);
        $detectVideoShotAdvanceRequest = new DetectVideoShotAdvanceRequest([
            "videoUrlObject" => $stream
        ]);
        $runtime = new RuntimeOptions([]);
        try {
            $resp = $client->detectVideoShotAdvance($detectVideoShotAdvanceRequest, $runtime);
            # 获取整体结果
            echo Utils::toJSONString($resp->body);
        } catch (Exception $exception) {
            # 获取整体报错信息
            echo Utils::toJSONString($exception);
            # 获取单个字段
            echo $exception->getCode();
        }
    }
}
$path = __DIR__ . \DIRECTORY_SEPARATOR . '..' . \DIRECTORY_SEPARATOR . 'vendor' . \DIRECTORY_SEPARATOR . 'autoload.php';
if (file_exists($path)) {
    require_once $path;
}
//$argv是预留的数组入参参数，无实际意义，无需进行修改
DetectVideoShotAdvance::main(array_slice($argv, 1));
// 安装依赖包
// npm install @alicloud/videorecog20200320
const VideorecogClient = require('@alicloud/videorecog20200320');
const OpenapiClient = require('@alicloud/openapi-client');
const TeaUtil = require('@alicloud/tea-util');
const fs = require('fs');
const http = require('http');
const https = require('https');

let config = new OpenapiClient.Config({
    // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html。
    // 如果您用的是RAM用户AccessKey，还需要为RAM用户授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html。
    // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行示例前必须先配置环境变量。 
    accessKeyId: process.env.ALIBABA_CLOUD_ACCESS_KEY_ID,   
    accessKeySecret: process.env.ALIBABA_CLOUD_ACCESS_KEY_SECRET
});
// 访问的域名
config.endpoint = `videorecog.cn-shanghai.aliyuncs.com`;
const client = new VideorecogClient.default(config);
const getResponse = function (httpClient, url) {
  return new Promise((resolve, reject) => {
    httpClient.get(url, function (response) {
      resolve(response);
    })
  })
}
const request = async function () {
  try {
    let detectVideoShotAdvanceRequest = new VideorecogClient.DetectVideoShotAdvanceRequest();
    // 场景一，使用本地文件
    // const fileStream = fs.createReadStream('/tmp/DetectVideoShot1.mp4');
    // detectVideoShotAdvanceRequest.videoUrlObject = fileStream;
    // 场景二，使用任意可访问的url
    const url = new URL("http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4");
    const httpClient = (url.protocol == "https:") ? https : http;
    detectVideoShotAdvanceRequest.videoUrlObject = await getResponse(httpClient, url);
    let runtime = new TeaUtil.RuntimeOptions({});
    client.detectVideoShotAdvance(detectVideoShotAdvanceRequest, runtime)
      .then(function (detectVideoShotResponse) {
        // 获取整体结果
        console.log(detectVideoShotResponse);
        // 获取单个字段
        console.log(detectVideoShotResponse.body.data);
      }, function (error) {
        // 获取整体报错信息
        console.log(error);
        // 获取单个字段
        console.log(error.data.Code);
      })
  } catch (error) {
    console.log(error);
  }
}();
/**
依赖github.com/alibabacloud-go/videorecog-20200320/v2
建议使用go mod tidy安装依赖
 */

import (
	"fmt"
	openapi "github.com/alibabacloud-go/darabonba-openapi/v2/client"
	util "github.com/alibabacloud-go/tea-utils/v2/service"
	"github.com/alibabacloud-go/tea/tea"
	videorecog20200320 "github.com/alibabacloud-go/videorecog-20200320/v2/client"
	"net/http"
)

func main() {
     // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html。
     // 如果您用的是RAM用户的AccessKey，还需要为RAM用户授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html。
     // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行示例前必须先配置环境变量。  
     accessKeyId := os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_ID")  
     accessKeySecret := os.Getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET")
     // 初始化配置对象 &openapi.Config。Config对象存放AccessKeyId、AccessKeySecret、Endpoint等配置。
     config := &openapi.Config{
          AccessKeyId: tea.String(accessKeyId),
          AccessKeySecret: tea.String(accessKeySecret)
	   }
	// 访问的域名
	config.Endpoint = tea.String("videorecog.cn-shanghai.aliyuncs.com")
	client, err := videorecog20200320.NewClient(config)
	if err != nil {
		panic(err)
	}
	// 场景一，使用本地文件
	//file, err := os.Open("/tmp/DetectVideoShot.mp4")
	//if err != nil {
	//	fmt.Println("can not open file", err)
	//	panic(err)
	//}
	//detectVideoShotAdvanceRequest := &videorecog20200320.DetectVideoShotAdvanceRequest{
	//	VideoUrlObject: file,
	//}
	// 场景二，使用任意可访问的url
	httpClient := http.Client{}
	file, _ := httpClient.Get("http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4")
	detectVideoShotAdvanceRequest := &videorecog20200320.DetectVideoShotAdvanceRequest{
		VideoUrlObject: file.Body,
	}
	runtime := &util.RuntimeOptions{}
	detectVideoShotAdvanceResponse, err := client.DetectVideoShotAdvance(detectVideoShotAdvanceRequest, runtime)
	if err != nil {
		// 获取整体报错信息
		fmt.Println(err.Error())
	} else {
		// 获取整体结果
		fmt.Println(detectVideoShotAdvanceResponse)
	}
}
// 安装依赖包
// dotnet add package AlibabaCloud.SDK.Videorecog20200320
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;
using AlibabaCloud.SDK.Videorecog20200320.Models;
using Tea;
using Tea.Utils;

namespace AlibabaCloud.SDK.Sample
{
    public class Sample
    {
        /**
        * 使用AK&SK初始化账号Client
        * @param accessKeyId
        * @param accessKeySecret
        * @return Client
        * @throws Exception
        */
        public static AlibabaCloud.SDK.Videorecog20200320.Client CreateClient(string accessKeyId, string accessKeySecret)
        {
            AlibabaCloud.OpenApiClient.Models.Config config = new AlibabaCloud.OpenApiClient.Models.Config
            {
              AccessKeyId = accessKeyId,
              AccessKeySecret = accessKeySecret,
            };
            // 访问的域名
            config.Endpoint = "videorecog.cn-shanghai.aliyuncs.com";
            return new AlibabaCloud.SDK.Videorecog20200320.Client(config);
        }
        public static void Main(string[] args)
        {
            // 创建AccessKey ID和AccessKey Secret，请参考https://help.aliyun.com/document_detail/175144.html
            // 如果您使用的是RAM用户的AccessKey，还需要为子账号授予权限AliyunVIAPIFullAccess，请参考https://help.aliyun.com/document_detail/145025.html
            // 从环境变量读取配置的AccessKey ID和AccessKey Secret。运行代码示例前必须先配置环境变量。
            AlibabaCloud.SDK.Videorecog20200320.Client client = CreateClient(System.Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID"), System.Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET"));
            AlibabaCloud.SDK.Videorecog20200320.Models.DetectVideoShotAdvanceRequest detectVideoShotAdvanceRequest = new AlibabaCloud.SDK.Videorecog20200320.Models.DetectVideoShotAdvanceRequest
            ();
            // 场景一，使用本地文件
            System.IO.StreamReader file = new System.IO.StreamReader(@"/tmp/DetectVideoShot1.mp4");
            detectVideoShotAdvanceRequest.VideoUrlObject = file.BaseStream;

            // 场景二，使用任意可访问的url
            //HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://viapi-test.oss-cn-shanghai.aliyuncs.com/viapi-3.0domepic/videorecog/DetectVideoShot/DetectVideoShot1.mp4");
            //WebResponse response = request.GetResponse();
            //Stream stream = response.GetResponseStream();
            //detectVideoShotAdvanceRequest.VideoUrlObject = stream;
            AlibabaCloud.TeaUtil.Models.RuntimeOptions runtime = new AlibabaCloud.TeaUtil.Models.RuntimeOptions();
            try
            {
                AlibabaCloud.SDK.Videorecog20200320.Models.DetectVideoShotResponse detectVideoShotResponse = client.DetectVideoShotAdvance(detectVideoShotAdvanceRequest, runtime);
                // 获取整体结果
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.ToJSONString(detectVideoShotResponse.Body));
                // 获取单个字段
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.ToJSONString(detectVideoShotResponse.Body.Data));
            }
            catch (TeaException error)
            {
                // 如有需要，请打印 error
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.AssertAsString(error.Message));
            }
            catch (Exception _error)
            {
                TeaException error = new TeaException(new Dictionary<string, object>
              {
                { "message", _error.Message }
              });
                // 如有需要，请打印 error
                Console.WriteLine(AlibabaCloud.TeaUtil.Common.AssertAsString(error.Message));
            }
        }
    }
}

常见的结果后处理

镜头切分

调用镜头解析之后可以拿到视频的切分点帧号，结合其他工具可以对视频进行镜头切割。

例如使用FFmpeg进行实现，相关命令如下：

# 镜头检测结果可以用来切割视频，有多种方式可以实现切割。一下代码示例通过ffmpeg分别截取视频和音频片段，最终把视频和音频整合在一起。

# 示例原始视频: DetectVideoShot1.mp4
# 镜头检测结果: "shot_frame_ids":[0,21,56,74,99,128,151,170,200,218,255,271,290,307,323,362,386,416,442,464,481,644,681,716,802,833,889,1027,1049,1075]
# 其中第八个镜头起止帧分别是170、200
# 通过ffprobe查看到视频帧率（25）和音频采样率（44100）：ffprobe DetectVideoShot1.mp4

# 截取第八个镜头的图像帧，并生成8v.mp4：
ffmpeg -i DetectVideoShot1.mp4 -vf "trim=start_frame=170:end_frame=200,setpts=PTS-STARTPTS" -an 8v.mp4

# 截取第八个镜头的音频帧，并生成8a.mp4：
ffmpeg -i DetectVideoShot1.mp4 -af "atrim=start_sample=44100/25*170:end_sample=44100/25*200" -vn 8a.mp4

# 组合音频和视频
ffmpeg -i 8v.mp4 -i 8a.mp4 -c copy 8.mp4

上一篇：视频理解下一篇：视频OCR
  • 本页导读 （1）
  • 能力介绍
  • SDK包安装
  • 配置环境变量
  • 示例代码
  • 文件在上海地域OSS
  • 文件在本地或可访问的URL
  • 常见的结果后处理