Group of pictures size adjustment

摘要

Various methods, systems, and apparatuses can be used to adjust the group of pictures size for an encoder during encoding operations. In some implementations, group of pictures size can be reduced during periods of higher likelihood of channel change, and increased during periods of lower likelihood of channel change. Such adjustment can facilitate faster display of pictures after a channel change due to anchor frames being more quickly received.

主权项

1. A computer-implemented method, comprising:
identifying one or more periods within a program stream when there exists an increased potential for subscribers to request to join the program stream; during the one or more identified periods, reducing a size associated with a group of pictures within the program stream; during periods outside of the one or more identified periods, increasing the size of the group of pictures within the program stream; and wherein identifying one or more periods of increased potential for subscribers to request to join the program stream comprises identifying one or more advertising windows, wherein the size of the group of pictures is a function of the one or more advertising windows, and wherein the function comprises a sinusoidal function whereby the size of the group of pictures associated with the program stream encoding is at a trough during the one or more advertisement windows and is at a peak during a content section of the program stream.