Constraints

Before using Live, understand the following constraints.

Table 1 describes the constraints.

**Table 1** Constraints
Item	Description
Region	Currently, Live is available only in AP-Bangkok, AP-Singapore, and CN North-Beijing4.
Domain name	By default, you can add a maximum of 64 domain names to each account.
Concurrent live stream	There is no limit on the number of concurrent live streams. However, if you will have a large number of concurrent live streams, you are advised to submit a service ticket.
Stream pushing	There is no limit on the bitrate. Common resolutions and bitrates are supported. To ensure smooth streaming, it is recommended that the bitrate be no greater than 4 Mbit/s.
Playback	You can play a live stream only after ingest and streaming domain names have been associated and the values of AppName and StreamName in the streaming URL are the same as those in the ingest URL.
Input/Output format	Video packaging protocols RTMP and FLV Video codecs: JPEG, Sorenson-H.263, ScreenVideo, On2-VP6, On2-VP6-Alpha, ScreenVideo2, and H.264 HLS output protocol Video codec: H.264 Audio packaging protocols RTMP and FLV Audio codecs: ADPCM, MP3, LinearLE, Nellymoser16, Nellymoser8, Nellymoser, G711A, G711U, AAC, Speex, MP3-8K, DeviceSpecific, and Uncompressed HLS output protocol Audio codec: AAC
Streaming management	This function is available only in the AP-Singapore and CN North-Beijing4 regions.
Recording	This function is unavailable in the AP-Bangkok region.
Transcoding	In the AP-Bangkok region, submit a service ticket for review after configuring a template. The configuration takes effect only after it is approved.
Snapshot capturing
Stream status notifications