ApsaraVideo Live:Audio-only and video-only streaming

Stream ingest

You can ingest audio-only and video-only streams over the Real-Time Messaging Protocol (RTMP).

The required stream type depends on the live streaming method. The requirements are as follows:

1. For audio-only live streaming, you can use an audio-only stream or a stream that contains both audio and video.

2. For video-only live streaming, you can use a video-only stream or a stream that contains both audio and video.

Playback

You can play audio-only and video-only streams over RTMP, FLV, and Alibaba Real-Time Communication (ARTC) protocols.

You can append a parameter to the playback URL to play only the audio or video of a stream.

• Playback URLs that start with RTMP or FLV

  Play audio only: onlyaudio=1

  Play video only: onlyvideo=1

  Note

  These parameters are supported only for playback URLs that use the RTMP or FLV protocol.

  Examples:

  • URL without authentication:

    rtmp://DomainName/AppName/StreamName?onlyaudio=1

    http://DomainName/AppName/StreamName.flv?onlyaudio=1

  • URL with authentication:

    rtmp://DomainName/AppName/StreamName?auth_key=timestamp-rand-uid-md5hash&onlyaudio=1

    http://DomainName/AppName/StreamName.flv?auth_key=timestamp-rand-uid-md5hash&onlyaudio=1

• Playback URLs that start with ARTC

  Play audio only: subvideo=no

  Play video only: subaudio=no

  Note

  These parameters are supported only for playback URLs that use the ARTC protocol.

  Examples:

  • URL without authentication:

    artc://DomainName/AppName/StreamName@subvideo=no

  • URL with authentication:

    artc://DomainName/AppName/StreamName?auth_key=timestamp-rand-uid-md5hash@subvideo=no