Animated Image Generating

Last updated: 2020-11-04 14:24:21

Animated image generating is an offline task that converts a video to an animated image such as in GIF or WEBP format. An animated image is a seamless cycle of continuous frames, which can deliver an animation effect with a small file size.
Note: 
 When animated image generating is supported, you can specify the start time and end time in the original video, and then the segment will be captured to generate an animated image. 
Animated Image Generating Template
The target specification of an animated image is subject to parameters such as animated image file format, width, height, and frame rate, which can be customized in the form of VOD animated image generating template as shown below:
Parameter
Description
Format
Output format of an animated image file. Currently, only GIF and WEBP are supported.
Width
Animated image width. Value range: 128–4,096 px.
Height
Animated image height. Value range: 128–4,096 px.
FPS
Supported frame rate range: 1–60 fps.
For common specifications, VOD provides a preset animated image generating template. In addition, you can also create and manage custom animated image generating templates in the console. For detailed directions, please see Template Settings.
Task Initiation
There are three ways to initiate an animated image generating task, namely, directly initiating through server API, directly initiating through the console, and specifying a task upon upload. For more information, please see Task Initiation for video processing.
Below are instructions for initiating animated image generating tasks in these ways:
Call the server API ProcessMedia to initiate a task: specify the animated image generating template ID in the MediaProcessTask.AnimatedGraphicTaskSet parameter in the request.
Initiate a task on a video through the console: add a task flow in the console, set the target animated image specification in the task flow, and use the task flow to initiate video processing.
Specify a task upon upload from server: add a task flow in the console, set the target animated image specification in the task flow, and specify this task flow as the procedure in the ApplyUpload request.
Specify a task upon upload from client: add a task flow in the console, set the target animated image specification in the task flow, and specify this task flow as the procedure parameter in the signature for upload from client.
Upload through console: add a task flow in the console, set the target animated image specification in the task flow, upload a video through the console, select Process Video During Upload, and specify to execute this task flow upon video upload completion.
Getting Result
After initiating an animated image generating task, you can wait for result notification asynchronously or perform task query synchronously to get the task execution result. Below is an example of getting the result notification in normal callback mode after the animated image generating task is initiated (the fields with null value are omitted):
{
    "EventType":"ProcedureStateChanged",
    "ProcedureStateChangeEvent":{
        "TaskId":"1256768367-Procedure-2e1af2456351812be963e309cc133403t0",
        "Status":"FINISH",
        "FileId":"5285890784246869930",
        "FileName":"Animal World",
        "FileUrl":"http://1256768367.vod2.myqcloud.com/xxx/xxx/AtUCmy6gmIYA.mp4",
        "MetaData":{
            "AudioDuration":60,
            "AudioStreamSet":[
                {
                    "Bitrate":383854,
                    "Codec":"aac",
                    "SamplingRate":48000
                }
            ],
            "Bitrate":1021028,
            "Container":"mov,mp4,m4a,3gp,3g2,mj2",
            "Duration":60,
            "Height":480,
            "Rotate":0,
            "Size":7700180,
            "VideoDuration":60,
            "VideoStreamSet":[
                {
                    "Bitrate":637174,
                    "Codec":"h264",
                    "Fps":23,
                    "Height":480,
                    "Width":640
                }
            ],
            "Width":640
        },
        "MediaProcessResultSet":[
            {
                "Type":"AnimatedGraphics",
                "AnimatedGraphicTask":{
                    "Status":"SUCCESS",
                    "ErrCode":0,
                    "Message":"",
                    "Input":{
                        "Definition":20001,
                        "StartTimeOffset":2,
                        "StartTimeOffset":5
                    },
                    "Output":{
                        "Url":"http://1256768367.vod2.myqcloud.com/xxx/xxx/v.f20001.webp",
                        "Definition":20001,
                        "Container":"webp",
                        "Height":480,
                        "Width":640,
                        "Bitrate":324271,
                        "Size":121601,
                        "Md5":"084d403c73930ca2f835679af1f37bd3",
                        "StartTimeOffset":3,
                        "EndTimeOffset":5
                    }
                }
            }
        ],
        "TasksPriority":0,
        "TasksNotifyMode":""
    }
}
In the callback result, ProcedureStateChangeEvent.MediaProcessResultSet contains the transcoding result in Type of AnimatedGraphics, and Definition is 20001.

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Parameter	Description
Format	Output format of an animated image file. Currently, only GIF and WEBP are supported.
Width	Animated image width. Value range: 128–4,096 px.
Height	Animated image height. Value range: 128–4,096 px.
FPS	Supported frame rate range: 1–60 fps.

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Animated Image Generating

Animated Image Generating Template

Task Initiation

Getting Result

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