Video Packaging Enables the Playback of Online Education Videos on Multiple Terminal Types

Scenarios

MPC can convert mainstream video formats to MP4 or HLS for multi-terminal compatibility, so that online education videos can be played regardless of terminal types and network conditions. For example, users can watch videos of online education platforms on mobile apps.

How It Works

Figure 1 Working principle

Restrictions

• Supported input formats: MP3, MP4, FLV, and TS
• Supported output formats: HLS and MP4

Procedure

1. Log in to the MPC console.
2. In the navigation pane, choose Media Processing > Packaging.
3. Click Create Task.

   

4. Set task parameters by referring to Table 1.

   Table 1 Task parameters

   Parameter	Description
   Input Region	Region where the OBS bucket for storing an input file resides
   Input Bucket	OBS bucket where an input file is stored
   Input File	Path for storing the input file
   Output Region	Region where the OBS bucket for storing an output file resides
   Output Bucket	OBS bucket where an output file is stored
   Output Path	Path for storing the output file
   Output File Name	Name of the packaged file
   Output Format	Output format of the file. Currently, only the HLS and MP4 formats are supported.
   Segment Duration (s)	HLS segment length. This parameter is only used when Output Format is HLS. The value ranges from 2 to 10. Default value: 5

5. Click OK.
6. View the task status in the task list.

   When the task status changes to Completed, you can obtain the packaged file from the output path.

   

SDK Integration Example

For details about the packaging feature and its sample code, see Creating a Packaging Task.

SDK core code for education website developers to access MPC:

    ObsObjInfo input = new ObsObjInfo().withBucket("mpc-east-2").withLocation("region01").withObject("ok.flv");
    ObsObjInfo output = new ObsObjInfo().withBucket("mpc-east-2").withLocation("region01").withObject("output");
    // Create a packaging request.
    CreateRemuxTaskRequest req = new CreateRemuxTaskRequest()
            .withBody(new CreateRemuxTaskReq().withInput(input).withOutput(output)
                    // Configure packaging parameters.
                    .withOutputParam(new RemuxOutputParam()
                            // Set the packaging format.
                            .withFormat("HLS")
                            // Set the HLS segment interval.
                            .withSegmentDuration(5)));
    // Send the packaging request.
    CreateRemuxTaskResponse rsp = initMpcClient().createRemuxTask(req);
    System.out.println(rsp.toString())