diff --git a/ci_media.go b/ci_media.go
index c7bbd21..70992df 100644
--- a/ci_media.go
+++ b/ci_media.go
@@ -109,6 +109,15 @@ type ConcatTemplate struct {
 	Container      *Container       `xml:"Container,omitempty"`
 	Index          string           `xml:"Index,omitempty"`
 }
+
+type Snapshot struct {
+	Mode         string `xml:"Mode,omitempty"`
+	Start        string `xml:"Start,omitempty"`
+	TimeInterval string `xml:"TimeInterval,omitempty"`
+	Count        string `xml:"Count,omitempty"`
+	Width        string `xml:"Width,omitempty"`
+	Height       string `xml:"Height,omitempty"`
+}
 type MediaProcessJobOperation struct {
 	Output              *JobOutput      `xml:"Output,omitempty"`
 	Transcode           *Transcode      `xml:"Transcode,omitempty"`
@@ -116,6 +125,7 @@ type MediaProcessJobOperation struct {
 	TemplateId          string          `xml:"TemplateId,omitempty"`
 	WatermarkTemplateId []string        `xml:"WatermarkTemplateId,omitempty"`
 	ConcatTemplate      *ConcatTemplate `xml:"ConcatTemplate,omitempty"`
+	Snapshot            *Snapshot       `xml:"Snapshot,omitempty"`
 }
 
 type CreateMediaJobsOptions struct {
@@ -187,9 +197,9 @@ type DescribeMediaJobsOptions struct {
 }
 
 type DescribeMediaJobsResult struct {
-	XMLName    xml.Name              `xml:"Response"`
-	JobsDetail []DocProcessJobDetail `xml:"JobsDetail,omitempty"`
-	NextToken  string                `xml:"NextToken,omitempty"`
+	XMLName    xml.Name                `xml:"Response"`
+	JobsDetail []MediaProcessJobDetail `xml:"JobsDetail,omitempty"`
+	NextToken  string                  `xml:"NextToken,omitempty"`
 }
 
 func (s *CIService) DescribeMediaJobs(ctx context.Context, opt *DescribeMediaJobsOptions) (*DescribeMediaJobsResult, *Response, error) {
diff --git a/example/CI/media_process/media_process.go b/example/CI/media_process/media_process.go
index 5fbd82c..ad800e3 100644
--- a/example/CI/media_process/media_process.go
+++ b/example/CI/media_process/media_process.go
@@ -30,6 +30,63 @@ func log_status(err error) {
 	}
 }
 
+func InvokeSnapshotTask() {
+	u, _ := url.Parse("https://wwj-bj-1253960454.cos.ap-beijing.myqcloud.com")
+	cu, _ := url.Parse("https://wwj-bj-1253960454.ci.ap-beijing.myqcloud.com")
+	b := &cos.BaseURL{BucketURL: u, CIURL: cu}
+	c := cos.NewClient(b, &http.Client{
+		Transport: &cos.AuthorizationTransport{
+			SecretID:  os.Getenv("COS_SECRETID"),
+			SecretKey: os.Getenv("COS_SECRETKEY"),
+			Transport: &debug.DebugRequestTransport{
+				RequestHeader: true,
+				// Notice when put a large file and set need the request body, might happend out of memory error.
+				RequestBody:    true,
+				ResponseHeader: true,
+				ResponseBody:   true,
+			},
+		},
+	})
+	// DescribeMediaProcessQueues
+	DescribeQueueOpt := &cos.DescribeMediaProcessQueuesOptions{
+		QueueIds:   "",
+		PageNumber: 1,
+		PageSize:   2,
+	}
+	DescribeQueueRes, _, err := c.CI.DescribeMediaProcessQueues(context.Background(), DescribeQueueOpt)
+	log_status(err)
+	fmt.Printf("%+v\n", DescribeQueueRes)
+	// CreateMediaJobs
+	createJobOpt := &cos.CreateMediaJobsOptions{
+		Tag: "Snapshot",
+		Input: &cos.JobInput{
+			Object: "input/117374C.mp4",
+		},
+		Operation: &cos.MediaProcessJobOperation{
+			Output: &cos.JobOutput{
+				Region: "ap-beijing",
+				Object: "output/${InputName}-${Number}.jpg",
+				Bucket: "wwj-bj-1253960454",
+			},
+			// TemplateId:"t1af5d050a8b4d45d1afb60bfbacbfa0f0",
+			Snapshot: &cos.Snapshot{
+				Mode: "Interval",
+				Start: "0",
+				Count: "1",
+			},
+		},
+		QueueId: DescribeQueueRes.QueueList[0].QueueId,
+	}
+	createJobRes, _, err := c.CI.CreateMediaJobs(context.Background(), createJobOpt)
+	log_status(err)
+	fmt.Printf("%+v\n", createJobRes.JobsDetail)
+
+	// DescribeMediaJobs
+	DescribeJobRes, _, err := c.CI.DescribeMediaJob(context.Background(), createJobRes.JobsDetail.JobId)
+	log_status(err)
+	fmt.Printf("%+v\n", DescribeJobRes.JobsDetail)	
+}
+
 func InvokeConcatTask() {
 	u, _ := url.Parse("https://wwj-bj-1253960454.cos.ap-beijing.myqcloud.com")
 	cu, _ := url.Parse("https://wwj-bj-1253960454.ci.ap-beijing.myqcloud.com")
@@ -81,10 +138,10 @@ func InvokeConcatTask() {
 					Format: "mp4",
 				},
 				Video: &cos.Video{
-					Codec: "H.264",
+					Codec: "H.265",
 				},
 				Audio: &cos.Audio{
-					Codec: "AAC",
+					//Codec: "AAC",
 				},
 				ConcatFragment:concatFragment,
 			},
@@ -168,6 +225,8 @@ func InvokeTranscodeTask() {
 }
 
 func main() {
-	InvokeConcatTask()
-	//InvokeTranscodeTask()
+	InvokeSnapshotTask()
+	// InvokeConcatTask()
+	// InvokeTranscodeTask()
+
 }