To apply optimization algorithms for different real-time engagement scenarios, Agora provides a
setChannelProfile method for the RTC channel. You can use this method to set the channel profile as either
These two channel profiles differ in the following aspects:
An RTC channel differentiates users by roles. Once a user joins a channel, the user can be either of the following:
The default user role in different channel profiles are different:
CHANNEL_PROFILE_COMMUNICATION: Host. You cannot change the user role.
CHANNEL_PROFILE_LIVE_BROADCASTING: Audience. You can call
setClientRoleto change the user role.
The default audio route refers to the route that audio data takes within a device, such as the speakerphone or earpiece of a mobile phone.
On Android and iOS, Agora uses different default audio routes depending on the channel profile:
CHANNEL_PROFILE_LIVE_BROADCASTING: The default audio route is the speakerphone.
bitrate member in the
setVideoEncoderConfiguration method sets the video encoding bitrate. Given the same resolution and frame rate, when you set
bitrate as the default value,
STANDARD_BITRATE(0), the value of the encoding bitrate in the
LIVE_BROADCASTING profile doubles that in the
In the following table, the base bitrate applies to the
COMMUNICATION profile, while the live bitrate applies to
|Resolution (px)||Frame rate (fps)||Base bitrate (Kbps)||Live bitrate (Kbps)|
|160 × 120||15||65||130|
|320 × 180||15||140||280|
|640 × 360||30||600||1,200|
|848 × 480||30||930||1,860|
The values of bitrate in the table above are for reference only. For the detailed video profile table, see API reference.
Based on the differences above, Agora recommends setting the channel profile according to your scenario: