Systems and methods for recording and playback of multiple variable rate data streams

An electronic device for recording multiple data streams, the device comprising:

• a storage controller coupled to an electronic storage device;
• a first data buffer storing data received from a first data stream;
• a second data buffer storing data received from a second data stream;
• a fragment buffer storing fragment metadata;
• a storage buffer including a plurality of data fragments;
• and
• an electronic processor communicatively coupled to the storage controller, the first data buffer, the second data buffer, the fragment buffer, and the storage buffer, and configured to
• receive information designating a data stream storage area of the electronic storage device,
• arbitrate between the first data buffer and the second data buffer to select a data fragment for writing to the storage buffer,
• write the data fragment to the storage buffer,
• write fragment metadata defining the data fragment to the fragment buffer, and
• control the storage controller to sequentially write from the plurality of data fragments of the storage buffer to the data stream storage area of the electronic storage device.