OnPublicStreamSEIMessageReceivedWithChannelType typedef
publicStreamId:公共流 ID
channelId:SEI 的消息传输通道,取值范围 0 - 255。
message:收到的 SEI/其他数据消息内容
Implementation
typedef OnPublicStreamSEIMessageReceivedWithChannelType = void Function(
String publicStreamId, int channelId, Uint8List message);