tencent cloud

This document describes how to use the player to play back long videos common on audio/video platforms. It covers the web, iOS, and Android versions of the player and also details the features of automatic adaptive bitstream switch, video thumbnail preview, and video timestamping.

Overview

After reading this document, you will know:

• How to output adaptive bitstreams in VOD (a player can dynamically select the most appropriate bitrate for playback based on the current bandwidth).
• How to set video timestamps.
• How to use image sprite as thumbnail in VOD.
• How to use the player.

Before reading this document, make sure that you have read Stage 1. Play back a video with Player in the Player Guide and understand the concept of fileid in VOD.

Directions

Step 1. Output adaptive bitstream and image sprite

This step describes how to transcode a video to adaptive bitstream and output image sprite.

1. Log in to the VOD console, select Video Processing > Template Settings > Adaptive Bitrate Streaming, and click Create Template.
   
   Create the adaptive bitstream through the template as needed. This document describes how to create an adaptive bitrate streaming template named testAdaptive, which contains three substreams with a resolution of 480p, 720p, and 1080p respectively. The video bitrate, video frame rate, and audio bitrate remain the same as the original video.
   
2. Select Video Processing > Template Settings > Screenshot and click Create Template.
   
   Create the image sprite through the template as needed. This document describes how to create an image sprite template named testSprite, with a sampling interval of 5%, 10 rows, and 10 columns.
   
3. Add the adaptive bitrate streaming and image sprite templates through the task flow.
   Select Video Processing > Task Flow Settings and click Create Task Flow.
   
   Add a task through the task flow as needed. To demonstrate the process of playing back an adaptive bitstream, this document describes how to create a task flow named testPlayVideo, which only adds the adaptive bitrate streaming and image sprite templates.
   
4. Select Media Assets > Audio/Video Management, select the target video, click Process Video > Task Flow, and select a task flow template to start the task.
   
5. At this point, you can get the processed task result in Audio/Video Management > Operation > Manage.

Step 2. Add video timestamps

This step describes how to add a set of video timestamps.

1. Go to VOD Server APIs > Media Asset Management APIs > ModifyMediaInfo and click Debug to enter the TencentCloud API console for debugging.
   
2. Add the specified video timestamps through the AddKeyFrameDescs.N parameter.
   
   At this point, you have completed the operation in the cloud, output the adaptive bitstreams and image sprite, and added the video timestamps.

Step 3. Integrate the player

This step describes how to play back the adaptive bitstreams, thumbnails, and timestamps in the player for web, iOS, and Android.

<video id="player-container-id" width="414" height="270" preload="auto" playsinline webkit-playsinline>
</video>

var player = TCPlayer('player-container-id', { // `player-container-id` is the player container ID, which must be the same as that in HTML.
  fileID: '5285890799710670616', // Pass in the `fileID` of the video to be played back, which is required.
  appID: '1400329073' // Pass in the `appID` of the VOD account, which is required.
});

// Import the header file
#import <SuperPlayer/SuperPlayer.h>
// Create a player  
_playerView = [[SuperPlayerView alloc] init];
// Set a delegate for events
_playerView.delegate = self;
// Set the parent view. _playerView will be automatically added under holderView.
_playerView.fatherView = self.holderView;

SuperPlayerModel *model = [[SuperPlayerModel alloc] init];
model.appId = 1400329073;// Configure AppId
model.videoId = [[SuperPlayerVideoId alloc] init];
model.videoId.fileId = @"5285890799710670616"; // Configure `FileId`
[_playerView playWithModel:model];

<!-- Player -->
<com.tencent.liteav.demo.superplayer.SuperPlayerView
  android:id="@+id/superVodPlayerView"
  android:layout_width="match_parent"
  android:layout_height="200dp" />

// Import `SuperPlayerView` into the layout file and create an instance
mSuperPlayerView = (SuperPlayerView) findViewById(R.id.superVodPlayerView);
// Hotlink protection disabled
SuperPlayerModel model = new SuperPlayerModel();
model.appId = 1400329073;// Configure AppId
model.videoId = new SuperPlayerVideoId();
model.videoId.fileId = "5285890799710670616"; // Configure `FileId`
mSuperPlayerView.playWithModel(model);

Summary

At this point, you can view the image sprite and video timestamps and automatically switch dynamic adaptive bitstreams in the player. For more features, see Feature Description.