Patent ID: 9094685
Filing Date: 2015-07-28
Classification: H04N

Abstract:
1. A method of transcoding a video bitstream in a video transcoding system, the video transcoding system including a video bitstream analyzer, a video decoder, and a video encoder, the method comprising the steps of: receiving, at the video bitstream analyzer, an input video bitstream including a plurality of video frames from an input video sequence, the respective video frames being encoded in a first coding format; for each of at least some of the plurality of video frames in the input video bitstream: decoding, by the video decoder, the plurality of video frames to generate a plurality of decoded video frames; and encoding, by the video encoder, the plurality of decoded video frames in a second coding format to generate a plurality of transcoded video frames in an output video bitstream, the encoding including applying a rate control function to at least some adjusted coding complexity estimations of the respective video frames to determine bit allocations for the plurality of transcoded video frames in the output video bitstream.