interleave

The interleave directive in the NGINX RTMP module is designed to enhance RTMP streaming efficiency by allowing interleaved audio and video data to be sent within the same TCP packets. This can significantly reduce the amount of bandwidth required for streaming, especially for clients that are capable of handling interleaved streams. The main goal of enabling interleaving is to provide a more efficient and smoother streaming experience by minimizing latency and reducing the overhead that typically occurs with separate audio and video streams.

By default, RTMP separates audio and video tracks into distinct channels which can be less efficient under certain network conditions. When the interleave directive is activated, both audio and video packets can be multiplexed into a single channel, allowing for better utilization of available bandwidth and potentially improving playback performance for viewers. It is particularly beneficial for live broadcasts where minimizing delays is crucial.

This directive accepts a single argument which is typically made up of a boolean value indicating whether interleaving should be enabled or disabled. When set to on, it allows the server to send audio and video data together, therefore facilitating more efficient data transmission. However, it is important to ensure that the client (such as a media player) supports interleaved streaming; otherwise, the stream may not play as expected.