Beam Coder

Provides direct access to FFmpeg's libav* libraries for muxing, demuxing, encoding, and decoding without spawning external processes, enabling efficient, in-process media handling as described in the README.

Uses promises to run long-running media operations on separate threads, avoiding blocking Node.js's event loop, which is essential for scalable microservices and lambda functions.

Implements shared memory buffers between JavaScript and C, reducing data copying overhead and improving performance for large media data, as highlighted in the README's architecture.

Works with Node.js streams for both input and output operations, allowing seamless integration with other stream-based modules like Express or AWS SDK, as shown in the demuxer stream example.