Patent ID: 9094684
Filing Date: 2015-07-28
Classification: H04N

Abstract:
1. A method of dual-pass rate control video encoding, comprising: receiving uncompressed input video including a sequence of pictures with a video encoder, the input video including a plurality of contiguous sequences of pictures each referenced to as a Group of Pictures (GOP) that, when coded, begin with an I-picture in display order and end with a last picture before a next I-picture; performing a first encoding pass of the uncompressed video with the video encoder; and performing a second encoding pass for rate control of the uncompressed video with the video encoder at a delay relative to the first encoding pass; during the first encoding pass: during the second encoding pass: during at least one of the first encoding pass and the second encoding pass, one or more boundaries of at least some of the GOPs are adjusted to be aligned with the scene changes.