Abstract: High-quality video encoding may be implemented using a single-chip multiprocessor system. Video encoding may be parallelized to take advantage of multiple processing elements available on a single-chip multiprocessor system. Task level parallelism may comprise parallelizing encoding tasks, such as motion estimation, compensation, transformation, quantization, deblocking filtering, and the like across multiple processing elements. Data level parallelism may comprise segmenting video frame data into macroblock partitions and slabs adapted to provide data independence between parallel processing elements. Data communications and synchronization features of the single-chip system may be leveraged to provide for data sharing and synchronism between processing elements.
Type:
Application
Filed:
November 24, 2009
Publication date:
September 30, 2010
Applicant:
BROADCAST INTERNATIONAL
Inventors:
J. Dean Brederson, Greg Gillis, Sean Heffernan, Daichi Furusaka, Keishi Chikamura, Masato Hori, Di Wu, Lim Boon Shyang
Abstract: Systems and methods disclosed herein create encoder sensitive video using single and/or bidirectional communication links between a video source and an encoding process to pass metadata (e.g., instructions and cues related to the video stream) to an encoder. A video system includes a video source to generate an uncompressed video stream and metadata corresponding to one or more characteristics of the uncompressed video stream. The video source may include, for example, a video camera or video editing equipment. The metadata may be based on a position, state, movement or other condition of the video source. The system also includes a codec communicatively coupled to the video source. The codec receives the uncompressed video stream and compresses it based on the one or more characteristics indicated in the metadata.
Abstract: An input module obtains a media signal to be communicated to a destination system, after which an identification module identifies a plurality of segments within the media signal. A codec includes a selection module that automatically selects different compression methods to respectively compress at least two of the segments. The compression methods are automatically selected to produce a highest compression quality for the respective segments according to a set of criteria without exceeding a target data rate. A compression module within the codec then compresses the segments using the automatically-selected compression methods, after which an output module delivers the compressed segments to the destination system with an indication of which compression method was used to compress each segment.
Type:
Application
Filed:
November 25, 2008
Publication date:
April 23, 2009
Applicant:
BROADCAST INTERNATIONAL
Inventors:
Danny L. Mabey, Jodie L. Reynolds, Lawrence S. Reznick, John E. Wilkinson, Jack A. Prock