kmp_rtmp_out_buffer_size

The 'kmp_rtmp_out_buffer_size' directive is utilized in the Kaltura Media Framework to control the output buffer size allocated for streaming RTMP (Real-Time Messaging Protocol) content. By adjusting this buffer size, administrators can optimize performance based on their streaming needs and the network conditions, which can significantly impact the experience for end-users, particularly for high-quality or live-streaming scenarios.

The directive accepts a single numerical argument that specifies the size of the output buffer in bytes. The buffer plays a critical role by temporarily holding the streamed media before it is transmitted over the network, which can help in smoothing out variations in network bandwidth and maintaining a steady stream of data. Setting the buffer size too small may lead to frequent buffering during playback, while setting it too large may unnecessarily consume system memory and introduce latency.

The directive can be set in both the 'stream' block for individual streams and the 'stream server' block for all streams managed by a server. This flexibility allows for granular configuration based on specific use cases, whether for optimized performance for particular streams or a more generalized configuration across a streaming server.