Cisco Technology, Inc.

Other

Scientific-atlanta, Inc.

Tech 5

Triton US Vp Acquisition Co.

Arturo A Rodriguez

Dean F Jerding

Robert O Banker

Benjamin M Cook

Gregory J Shepherd

John Murray Schlarb

Hsiang-Yeh Hwang

Ajith N Nair

Jeffrey C Hopper

Anil Kumar Katti

Ramesh Nallur

Kevin A Murray

Robert T Van Orden

Peter Chan

Bindu Crandall

Samie Beheydt

Geoffrey Granville Hammett

Harold J Plourde, Jr

David A Sedacca

Jan Louis De Lameillieure

Albert Garcia

John Eric West

Neilesh R Patel

Timothy W Simerly

Timothy Hall Addington

Thomas Kernen

James Au

Randolph R Beebe

Shashi Goel

Frank Domina

Ken L Eppinett

Scott C Labrozzi

William E Wall

John R Bean

Sashi Goel

Anthony John Wasilewski

William C VerSteeg

Luis Z Avila

Randall Bernard Baird

Akira Osamoto

Ali C Begen

David B Lett

Peter Michael Gits

Luis A Rovira

Dariusz S Kaminski

Tankut Akgul

James Ka Sin Au

Azita M Manson

Bijal Shah

Valerie Grew Gutknecht

Valerie G Gutknecht

James F McDonald

Darryl S Delacruz

James W Kiker

Shmuel Shaffer

Labhesh Patel

Shantanu Sarkar

Mukul Jain

Sanjeev Kumar

Theodore Grevers, Jr

Gregory S Durden

Douglas F Woodhead

David B Burleson

Benjamin Lorne Walton

David Burleson

Douglas Woodhead

Timothy A Addington

Xin Li

Jaehin In

Ali Jerbi

Jiawei Huang

John R Beun

Liang Liang

Norman Cheng

Valerie Grew Gutnecht

William C Versteeg

Valerie Gutknecht

Harold J Plourde

Luis Avila

Embodiments of the present disclosure specify methods and systems for processing a video stream. For example, a video stream may be received at a video processing device. The video stream may comprise video usability syntax elements. The video usability syntax elements may comprise at least a first flag indicative of whether HRD parameters are present for one of fixed frame rate processing or low delay mode processing. The video usability syntax elements may also comprise at least a second flag indicative of whether the video stream comprises field-coded video sequences.

Method and system for processing HEVC coded video in broadcast and streaming applications

Assistance information related to a tier framework may describe signaling for extractable and decodable sub-sequences based on pictures interdependencies. This may allow a video application to efficiently select pictures when performing a given trick mode.

Distinguishing HEVC pictures for trick mode operations

In one method embodiment a method of processing of a bitstream is disclosed. The method may include receiving at a processing device a bitstream comprising a first portion of compressed pictures having a first picture resolution format and a second portion having a second picture resolution format during transmission over a given channel, wherein the first compressed picture of the second portion of compressed pictures is the first compressed picture in the video stream after the last compressed picture of the first portion of compressed pictures; determining by the processing device a first number of picture buffers in a decodable picture buffer (DPB) for decoding the first portion of the compressed pictures; allocating a linear memory corresponding to the first number of picture buffers for decoding of the first portion of the bitstream; determining a second number of picture decode buffers in the DPB for decoding the second portion of the compressed pictures, wherein the second number of picture decode buffers are determined based on a ratio of picture size of pictures from the first portion and the second portion; and reusing the linear buffer for decoding the second portion without deallocating and reallocating the linear memory.

Support for variable number of picture buffers in decoded picture buffer

Methods and systems for achieving a high frame rate video with compatibility for existing receivers without depending bitstream encoding are provided herein. For example, an apparatus comprises: a memory; and one or more processors configured to execute instructions stored in the memory. The instructions comprise: receiving a first bitstream having a first packet identifier ('PID') and a second bitstream having a second PID; decoding the first bitstream and the second bitstream; and interleaving the decoded first bitstream and the decoded second bitstream to form a high frame rate video signal, wherein the high frame rate video signal has a frame rate equal to the sum of the frame rate of the decoded first bitstream and the decoded second bitstream.

High frame rate video compatible with existing receivers and amenable to video decoder implementation

Methods and systems for pre-conditioning a video stream are provided herein. For example, an apparatus comprising a memory and one or more processors configured to execute instructions stored in the memory are provided. The instructions: identify packets of a first bitstream in a transport stream, such first bitstream corresponding to a base layer; identify packets of a second bitstream in the transport stream, such second bitstream corresponding to an enhancement layer; identify an initial packet corresponding to an ith picture in the first bitstream; identify an initial packet corresponding to the ith picture in the second bitstream; and reorder packets in the transport stream such that the initial packet corresponding to the ith picture in the second bitstream occurs after the initial packet corresponding to the ith picture in the first bitstream.

Packet placement for scalable video coding schemes

Methods and systems for processing a video stream are disclosed. A first tier value may be assigned to each of a plurality of SHRAP pictures in a first video stream. A reference tier value may be assigned to pictures in the first video stream that may be used as reference pictures. A plurality of discard tier values may be assigned to pictures in the first video stream that may be discarded during trick mode operations and do not depend on other pictures assigned one of the plurality of discard tier values. A trick mode operation may then be performed, wherein the presentation of pictures in the first video stream is dependent upon assignment of tier values.

PVR assist information for HEVC bitstreams

A method including: receiving 16 10-bit Y samples stored in respective 16-bit words; logically ORing the 16 10-bit Y samples with the lowest 5-bits corresponding to each of the next 16 10-bit U samples; receiving the first consecutive 16 10-bit Y samples stored in respective 16-bit words; logically ORing the next consecutive 16 10-bit Y samples with the highest 5-bits corresponding to each of the next 16 10-bit U samples; receiving the second consecutive 16 10-bit Y samples stored in respective 16-bit words, logically ORing the second consecutive 16 10-bit Y samples with the lowest 5-bits corresponding to each of the next 16 10-bit V samples; receiving the third consecutive 16 10-bit Y samples stored in respective 16-bit words; and logically ORing the third consecutive 16 10-bit Y samples with the highest 5-bits corresponding to each of the next 16 10-bit V samples.

Efficient 10-bit pixel formatting of uncompressed 4K video signals for distributed processing

In one embodiment a method of video processing is disclosed. The method may include receiving by a processing device a first portion of compressed pictures of a bitstream, the first portion of compressed pictures corresponding to a first picture resolution format (PRF), the first portion of the compressed pictures comprising at least one picture compressed at a first encoding level, the first portion of the compressed pictures having an intended picture output as a sequence of pictures in the first PRF; determining a size of the largest picture of the first encoding level; determining a first number of picture buffers corresponding to the largest picture; allocating a linear memory based on the first number of picture buffers and size of the largest picture; determining a ratio of a picture size of the at least one picture of the first portion of the compressed picture and the largest picture size of the first encoding level; determining a second number of picture buffers based on the determined ratio; and mapping the second number of picture buffers in the first number of picture buffers.

Decoded picture buffer size management

Systems and methods may be provided for determining whether or not to output the 'decoded pictures yet to be output' (DPYTBO) after decoding a random access point (RAP) picture of the second of two consecutive coded video sequences in a bitstream. The DPYTBO pictures may reside in a portion of memory coupled to a video decoder. The portion of memory may correspond to the Decoder Picture Buffer (DPB) of the video decoder. The picture resolution in the bitstream is allowed to change only at the start of a CVS. The first coded picture in a coded video sequence (CVS) may be a RAP picture. The second CVS may or may not have a picture resolution that is different from the picture resolution corresponding to the first CVS.

Output management of prior decoded pictures at picture format transitions in bitstreams

Converting video information from a first compression format to a second compression format, including receiving data for a sequence of pictures in the first compression format, the received data including a video stream corresponding to a video program and including for a picture that is inter coded motion vectors and quantized transform coefficients of residuals of motion compensated inter-coded blocks. The converting also includes extracting auxiliary information including one or more auxiliary data elements from the received data; and transcoding from the first compression format to the second compression format, including carrying out motion estimation for blocks of image data in the second compression format. Carrying out motion estimation for blocks of image data in the second format includes using the auxiliary information to ascertain whether to use a first motion estimation method or a second motion estimation method different from the first motion estimation method.

Systems and methods for guided conversion of video from a first to a second compression format

Systems and methods disclosed herein may describe methods and systems for generating, receiving, and/or processing a bitstream comprising at least a first coded video stream (CVS), the first CVS comprising a first flag that indicates whether each of a plurality of sub-layers in a coded video sequence has a respectively corresponding set of sub-layer parameters or whether a common set of sub-layer parameters corresponds to the plural sub-layers, wherein each sub-layer corresponds to a respective temporal identifier value.

Providing a common set of parameters for sub-layers of coded video

In one method embodiment, receiving a video stream comprising a first compressed picture without associated time stamp information and a second compressed picture having associated first time stamp information, the second compressed picture following the first compressed picture in transmission order; deriving second time stamp information based on the first time stamp information; and processing the first compressed picture based on the second time stamp information.

DTS/PTS backward extrapolation for stream transition events

In one embodiment, a method that provides tier information corresponding to a picture, the tier information provided in an adaptation field of a transport packet, the transport packet comprising a first byte of a header of a packetized elementary stream (PES) containing the picture; and provides the first transport packet.

Signaling tier information to assist MMCO stream manipulation

Growing community of inventors

Norcross, GA, United States of America

Arturo A Rodriguez