In live streaming, stuttering significantly impacts playback quality. Although stuttering can have many causes, poor upstream transmission is a major one that can degrade the viewing experience and cause video stuttering for all viewers.
The ApsaraVideo Live console provides an upstream traffic monitoring feature that lets you check the transmission status of your live streams.
Log in to the ApsaraVideo Live console.
In the navigation pane on the left, choose .
Select the desired streaming domain.
Select the desired stream status.
Select the time period, AppName, and StreamName of the live stream that you want to monitor.
To the right of the target stream, click Stream Monitoring.
View the stream management data.
On the Stream Monitoring page, view the following metrics: Duration, AppName, StreamName, Average Frame Rate, and Average Bitrate.
Video frame rate and audio frame rate
Bitrate
The stream management data is updated approximately every minute. You can open the interface at any time to check the status of the upstream data transmission.
A smooth line with stable peaks and troughs indicates stable upstream transmission. If you observe significant jitter, troubleshoot the upstream transmission issue immediately.
NoteMonitoring data is available approximately 5 minutes after you start stream ingest. The data refreshes approximately every minute. If the stream ingest duration is too short, no data is displayed.
Causes of stream ingest stuttering
Playback stuttering is often caused by stream ingest issues. If stuttering occurs, check for the following common causes.
Phone configuration
Stream ingest consumes CPU resources. On low-end phones, if the overall CPU usage exceeds 80% during stream ingest, the video may stutter or show artifacts. This affects both video capture and the end-user viewing experience.
Video capture parameter settings
To ensure smooth video playback, the frame rate must be at least 15 frames per second (FPS). If the FPS is below 10, the video will stutter noticeably. Unless you have special requirements, set the video frame rate above 15 FPS.
A higher frame rate results in smoother video. However, the human eye cannot perceive improvements beyond 30 FPS. A higher frame rate also increases bandwidth costs. Set your video parameters to a reasonable value.
Network bandwidth
Network issues are the most common cause of video stuttering. Common factors include the following:
Bandwidth capacity: Confirm that the bandwidth provided by your Internet Service Provider (ISP) is sufficient for the live stream.
Downstream bandwidth usage: Check if other download activities are consuming network bandwidth.
System resource usage: Check if multiple programs are running in the background. Close unnecessary programs to free up resources.