ApsaraVideo Live:Limits

Item

Limit

Adjustable

Live data transfer plan

If you purchase live data transfer plans, fees for live streaming traffic are deducted from the live data transfer plans on a daily basis.

No.

Resource plan

You can query only valid resource plans and resource plans that expired within one year.

No.

Pay-by-traffic

If you use the pay-by-traffic metering method, the maximum bandwidth is 10 Gbit/s by default.

Yes. If you want to increase the maximum bandwidth, submit a ticket. For more information, see Contact us.

Bandwidth throttling

According to the Product-Specific Terms in the Alibaba Cloud International Website Product Terms of Service, if the metering method for network usage of your domain name is pay-by-traffic or pay-by-bandwidth and the bandwidth consumed within 1 minute increases by 10 Gbit/s, Alibaba Cloud enables bandwidth throttling for the domain name to prevent potential attacks from harming your network or affecting your business.

Yes. To disable bandwidth throttling, contact your account manager or contact us by other means that are described in Contact us.

Feature

Limit

Adjustable

Accelerated domain name

• If the acceleration region of your domain name is Global or Chinese Mainland, the domain name must have an Internet Content Provider (ICP) filing. For more information, see Domain name ICP filing.

• By default, you can add up to 20 domain names to ApsaraVideo Live within each Alibaba Cloud account.

Yes. To adjust the limits, submit a ticket. For more information, see Contact us.

Live stream ingest

• For live centers in the China (Beijing), China (Shanghai), and China (Shenzhen) regions, each accelerated domain name supports concurrent ingest of up to 300 source streams by default.

• For live centers in other regions, each accelerated domain name supports concurrent ingest of up to 50 source streams by default.

• For live centers in the China (Beijing), China (Shanghai), China (Shenzhen), and Singapore regions, go to the Quota Center to apply for a quota increase. For more information, see Quota management.

• For live centers in other regions, if you want to increase the quota, contact your account manager or contact us by other means that are described in Contact us.

ApsaraVideo Live does not limit the bitrate of ingested streams and supports common resolutions and bitrates. To prevent stuttering during stream ingest, we recommend that you use a bitrate that is not greater than 4 Mbit/s.

No.

The Real-Time Messaging Protocol (RTMP), ApsaraVideo Real-time Communication (ARTC), and Secure Reliable Transport (SRT) protocols are supported for stream ingest.

No.

Live stream playback

The RTMP, Flash Video (FLV), HTTP Live Streaming (HLS), ARTC, SRT, and Common Media Application Format (CMAF) protocols are supported for streaming. By default, the SRT protocol is not available. To use the protocol, contact your account manager or contact us by other means that are described in Contact us.

No.

User-Agent blacklist and whitelist

You cannot configure the User-Agent blacklist or whitelist in the ApsaraVideo Live console due to complex configurations and risks of misoperations.

Yes. If you want to configure the User-Agent blacklist or whitelist, submit a ticket. For more information, see Contact us.

Video encryption (Alibaba Cloud proprietary cryptography and DRM encryption)

• Videos can be generated only in the HLS format.

• The encrypted videos can be played only by using ApsaraVideo Player and cannot be played on a web client.

No.

Live stream management

• You can call the ForbidLiveStream operation to forbid up to 10,000 live streams. If the threshold is exceeded, the operation fails.

• You can call the ForbidLiveStream operation up to 20 times per second per account.

No.

Live stream snapshots

Live stream snapshots can be generated only in the JPG format.

No.

DRM

• You cannot configure digital rights management (DRM) by calling API operations. You must configure DRM by using the ApsaraVideo Live console.

• DRM encryption is available only in the live centers of the China (Shanghai), Singapore, and Indonesia (Jakarta) regions.

• The first time that you use the DRM feature for your domain name, you must submit a ticket to enable the feature.

• DRM is supported only for ApsaraVideo Player V5.3.4 and later.

Yes. To enable the DRM feature, submit a ticket. For more information, see Contact us.

Domain name management

You must upload a certificate for an accelerated domain name for which the HTTPS secure acceleration feature is enabled. The Tengine service that is used by ApsaraVideo Live is based on NGINX. Therefore, only certificates that can be read by NGINX, which are in the PEM format, are supported.

No.

EdgeScript

You can create only one script for each domain name.

Yes. If you want to increase the quota, submit a ticket. For more information, see Contact us.

IP address blacklist and whitelist

The IP address blacklist and whitelist support IPv6 addresses. Letters in an IPv6 address must be in uppercase. Example: 2001:DB8:0:23:8:XXX:XXXC:417A or 2001:0DB8:0000:XXXX:XXXX:0800:200C:417A. You cannot shorten the representation of an IPv6 address. For example, 2001:0DB8:XXXX:XXXX:200C:417A is not supported.

No.

Live stream transcoding

• A standard transcoding template and a Narrowband HD^TM transcoding template cannot be used at the same time. You can use only one type of transcoding template for a specific application name in each domain name.

• For live centers in the China (Beijing), China (Shanghai), and China (Shenzhen) regions, each domain name supports up to 300 concurrent transcoded streams.

• For live centers in other regions, each domain name supports up to 50 concurrent transcoded streams.

• A Narrowband HD^TM transcoding template cannot transcode streams by using the H.265 codec.

• You can configure parameters in a multi-bitrate transcoding template based on your business requirements.

• For live centers in the China (Beijing), China (Shanghai), China (Shenzhen), and Singapore regions, go to the Quota Center to apply for a quota increase. For more information, see Quota management.

• For live centers in other regions, if you want to increase the quota of concurrent transcoded streams, contact your account manager or contact us by other means that are described in Contact us.

Live stream recording

• The Object Storage Service (OSS) bucket that is used to store live stream recordings must reside in the same region as the live center of the domain name. Cross-region recording is not supported.

• The VOD transcoding template group must be in the same region as the live center.

• If one of the following conditions is met, a live stream cannot be recorded: The resolution is 4K or 8K, the bitrate of the ingested stream exceeds 25 Mbit/s, or the size of a TS segment exceeds 100 MB.

No.

Live stream pulling

• You cannot pull streams from IPv6 addresses.

• The following limits apply when you configure regular stream pulling:

  • You can add up to four origin URLs.

  • You can use up to 10 templates for regular stream pulling at the same time.

  • The duration from the time when stream pulling starts to the time when stream pulling ends cannot exceed seven days.

• You can call the AddLivePullStreamInfoConfig operation to pull live streams in the RTMP, HTTP, and FLV formats. You can call the operation up to 15 times per second per account.

No.

Production studio, transcoding, time shifting, recording, snapshot capture, content moderation, and Live-to-VOD

Some features of ApsaraVideo Live are unavailable in specific regions. For more information, see Supported regions.

Yes. If you want to enable specific features in specific regions, submit a ticket. For more information, see Contact us.

Production studio

• By default, you can create up to 50 production studios.

• By default, you can start up to 20 production studios at the same time under a domain name.

• Virtual studios are not supported on the Alibaba Cloud International site (alibabacloud.com).

No.

RTS

When you use the Real-Time Streaming (RTS) feature for HTML5 playback, take note of the following limits:

• Videos that contain B-frames are not supported. If you play a video that contains B-frames, frame skips may occur.

• AAC encoding is not supported. If you play a video whose audio is encoded in AAC, noise may occur.

HTML5 auto transcoding helps resolve compatibility issues. For more information, see HTML5 auto transcoding.

Live stream recording

Live stream recording supports only the following encoding formats:

• Video: H.264, HEVC, and MPEG-4

• Audio: AAC and MP3

No.

Stream relay from a live center

A stream can be relayed to up to 200 destination URLs from a live center. If the limit is reached, you cannot add any more stream relay templates.

Yes. If you want to enable specific features in specific regions, submit a ticket. For more information, see Contact us.

Push SDK

• Push SDK download: Each version of Push SDK contains two suites. One suite applies only to the ARM architecture and supports debugging on physical devices. The other suite applies to the ARM architecture and simulators and supports debugging on physical devices and simulators. If you want to publish your project online, you must use the suite that applies only to the ARM architecture.

• Demo compilation: The demo runs only on physical devices. You cannot run the demo on a virtual machine.

• Stream ingest on mobile devices: When you ingest a local video on a mobile device, the original YUV format of video images is used.

No.