REAL TIME VIDEO CODING SYSTEM WITH ERROR RECOVERY USING EARLIER REFERENCE PICTURE

摘要

In a video coding system, a method includes transmitting a first encoded picture from an encoder for reception by a decoder as part of an encoded bitstream. The first encoded picture acts a first reference picture for one or more subsequent pictures in the output encoded bitstream. The method further includes receiving, at the encoder, an indication from the decoder that there was an error in receiving the first encoded picture, and selecting a second reference picture from a buffer of reference pictures at the encoder. The selected second reference picture selected as being earlier than the first reference picture in an encoding order of the encoded bitstream. The method further includes configuring the encoder to encode a set of one or more pictures for the encoded bitstream using the second reference picture and signaling the first reference picture as a non-reference picture.