Systems, methods, apparatus, and computer program products for providing forward error correction with low latency

摘要

Systems, methods, apparatus, and computer program products for providing forward error correction with low latency to live streams in networks are provided. One example method includes receiving source data at a first rate, outputting the source data at a rate less than the first rate, collecting the source data in a buffer, FEC decoding the source data, thereby generating decoded data; and outputting the decoded data at a rate equal to the first rate, either after collecting the source data in the buffer for a predetermined time duration or after collecting a predetermined amount of the source data in the buffer.

主权项

1. A method for providing forward error correction, comprising steps of:
transmitting an FEC encoded stream using a time window of t seconds; transmitting an unencoded stream consisting of source packets shifted t seconds with respect to data in the source stream; receiving the FEC encoded stream and the unencoded stream; outputting the unencoded stream for a first t seconds; collecting data from the FEC encoded stream; after the first t seconds, FEC decoding the FEC encoded stream to generate a decoded stream; and outputting the-decoded stream.