Abstract: A video encoder generates a Network Abstraction Layer (NAL) unit that contains a plurality of encoded picture partitions of the video data. The video encoder generates a bitstream that includes a variable-length value that represents an entropy-encoded first syntax element, a variable-length value that represents an entropy-encoded second syntax element, and fixed-length values that represent offset syntax elements. Lengths of each of the offset syntax elements are determinable based on the first syntax element. A video decoder uses the first syntax element, the second syntax element, and the offset syntax elements when decoding the encoded picture partitions.

Abstract: Techniques are described related to deriving a reference picture set. A reference picture set may identify reference pictures that can potentially be used to inter-predict a current picture and picture following the current picture in decoding order. In some examples, deriving the reference picture set may include constructing a plurality of reference picture subsets that together form the reference picture set.

Abstract: This invention relates to liquid crystal compounds of formula I containing cyclopentyl group and difluoromethyleneoxy linking group. Liquid crystal compounds of formula I have a large dielectric anisotropy, high clearing points, and a fast response speed, thereby having great significance to formulate a liquid crystal mixture.

Abstract: In accordance with an embodiment, a method includes electronically receiving a media presentation description (MPD) from a network. The MPD describes multimedia content that includes alternative representations of a plurality of media types, and the MPD includes information indicative of how the alternative representations are encoded. The method also includes selecting one of the plurality of alternative representations for at least one of the plurality of media types based on information included in the MPD, requesting the selected one of the plurality of alternative representations piece-by-piece, and electronically receiving a piece of media data.

Abstract: An apparatus for coding video information according to certain aspects includes a processor configured to determine a value of a flag associated with a current picture of a current layer to be decoded, the flag indicating whether pictures in a decoded picture buffer (DPB) should be output, wherein the current picture is an intra random access point (TRAP) picture that starts a new coded video sequence (CVS) and wherein the determination of the value of the flag is based on at least one of: (1) the chroma format of the current picture and the chroma format of the preceding picture, (2) the bit depth of the luma samples of the current picture and the bit depth of the luma samples of the preceding picture, or (3) the bit depth of the chroma samples of the current picture and the bit depth of the chroma samples of the preceding picture.

Abstract: Methods for coding an inter-layer reference picture set (RPS) and coding end of bitstream (EoB) network access (NAL) units in multi-layer coding are disclosed. In one aspect, the method includes determining whether a candidate inter-layer reference picture is present in the video information. The video information includes an inter-layer RPS including a plurality of subsets. The method further includes determining an inter-layer RPS subset to which the candidate inter-layer reference picture belongs in response to determining that the candidate inter-layer reference picture is not present, and indicating that no reference picture is present in the inter-layer RPS subset to which the candidate inter-layer reference picture belongs.

Abstract: An apparatus configured to decode video information includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a bitstream. The apparatus further includes a processor in communication with the memory, the processor configured to determine that a reference layer is not included in the bitstream. The processor is further configured to receive, from an external source, a decoded base layer picture associated with an access unit, to store the decoded base layer picture in a memory. The processor is further configured to decode pictures associated with the access unit based on the stored decoded base layer picture, and subsequent to decoding the pictures associated with the access unit, empty the decoded base layer picture from the memory.

Abstract: A video decoder assembles, in a buffer model, an access unit from a plurality of elementary streams of a video data stream. The video data stream may be a transport stream or a program stream. The same buffer model is used regardless of whether the elementary streams contain Scalable High Efficiency Video Coding (SHVC), Multi-View HEVC (MV-HEVC), or 3D-HEVC bitstreams. Furthermore, the video decoder decodes the access unit.

Abstract: Methods for coding recovery point supplemental enhancement information (SEI) messages and region refresh SEI messages in multi-layer coding are disclosed. In one aspect, the method may include determining at least one picture among a plurality of pictures included within an access unit with which to associate at least one recovery point SEI message, the access unit being included within the multi-layer bitstream. The method may further include associating the at least one recovery point SEI message with the determined at least one picture. The method may also include coding the video information based at least in part on the association of the at least one recovery point SEI message with the determined at least one picture.

Abstract: An apparatus configured to code video information includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a bitstream. The apparatus further includes a processor in communication with the memory, the processor configured to determine whether a reference layer is included in the bitstream. The processor is further configured to determine, based upon whether the reference layer is included in the bitstream, whether or not to process an indication and to, if the reference layer is included in the bitstream, process, in a video bitstream, the indication. The processor is also configured to code the video information based at least in part on the processed indication.

Abstract: An apparatus configured to code video information includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a bitstream. The apparatus further includes a processor in communication with the memory, the processor configured to determine whether a reference layer is included in the bitstream. The processor is further configured to determine an indication of one or more parameters for a decoded picture buffer based upon whether the reference layer is included in the bitstream and to code the video information based at least in part on the determined indication of the one or more parameters for the decoded picture buffer.

Abstract: An apparatus configured to decode video information includes a memory and a processor in communication with the memory. The memory is configured to a memory configured to store video information associated with bitstream. The apparatus further includes a processor in communication with the memory, the processor configured to determine that a reference layer is not included in the bitstream and to receive, from an external source, a decoded base layer picture. The processor is further configured to receive, from the external source, a first indication that the picture is an intra random access point (IRAP) picture. The processor is also configured to receive a second indication whether the picture is one of an instantaneous decoder refresh (IDR) picture, a clean random access (CRA) picture, or a broken link access (BLA) picture; and to decode the video information based at least in part on the first and second indications.

Abstract: An apparatus for coding video information according to certain aspects includes a memory and a processor. The memory unit is configured to store video information associated with an enhancement layer (EL) and a corresponding reference layer (RL). The processor is configured to: code an EL picture in a current access unit (AU), the EL coded using a first standard that is different from a second standard that is used to code the RL, wherein the coding of the EL picture is based on information associated with a RL picture in the current access unit, the information associated with the RL picture provided by an external means and consisting of: (1) decoded sample values of the RL picture; (2) a representation format of the RL picture; and (3) an indication of whether the RL picture is an instantaneous decoding refresh (IDR) picture.

Abstract: A method for coding a reference picture set (RPS) in multi-layer coding is disclosed. In one aspect, the method may involve determining whether a current picture of video information is a discardable picture. The method may also involve refraining from including the current picture in an RPS based on the determination that the current picture is a discardable picture. The method may further involve encoding the video information based at least in part on the RPS.

Abstract: A video encoder divides a picture into a plurality of picture partitions, such as tiles or wavefront parallel processing (WPP) waves. The picture partitions are associated with non-overlapping subsets of the treeblocks of the picture. The video encoder generates a coded slice network abstraction layer (NAL) unit that includes encoded representations of the treeblocks associated with a slice of the picture. The coded treeblocks are grouped within the coded slice NAL unit into segments associated with different ones of the picture partitions. The video encoder pads one or more of the segments such that each of the segments begins on a byte boundary.

Abstract: An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a first video layer having a current picture. The processor is configured to process a first offset associated with the current picture, the first offset indicating a difference between (a) most significant bits (MSBs) of a first picture order count (POC) of a previous picture in the first video layer that precedes the current picture in decoding order and (b) MSBs of a second POC of the current picture.

Abstract: In an example, a method of decoding video data includes decoding, by a video decoder, a first picture of multi-layer video data, where the first picture has a first picture type. The method also includes, based on the first picture having the first picture type, decoding, by the video decoder, data representative of picture order count (POC) most significant bits (MSB) value for the first picture.

Abstract: In an example, a method of decoding video data includes decoding data that indicates a picture order count (POC) reset for a POC value of a first picture of a first received layer of multi-layer video data, where the first picture is included in an access unit. The method also includes, based on the data that indicates the POC reset for the POC value of the first picture and prior to decoding the first picture, outputting all pictures stored in a decoded picture buffer (DPB) that precede the first picture in coding order and that are not included in the access unit.

Abstract: A negative dielectric anisotropic liquid crystal compound containing 2,3-difluorophenyl, and a preparation method and use thereof are disclosed. The compound has a general structural formula as shown in Formula I. The negative dielectric anisotropic liquid crystal compound has a negative dielectric anisotropy (??), and has cyclobutyl or cyclopentyl as a terminal group. Compared with conventional liquid crystal compounds with a flexible alkyl chain as a terminal group, the compound of Formula I according to the present invention has the advantage of high clearing point, and enables extension of the application range of a liquid crystal mixture because a positive correlation exists between the clearing points of the liquid crystal mixture and monomer liquid crystal compounds. In addition, the compound can increase the absolute value of the negative dielectric constant of the liquid crystal mixture, thus having an important application value.

Abstract: A method of encoding scalable video data having multiple layers where each layer in the multiple layers is associated with at least one other layer includes identifying one or more layers using a first identifier where the first identifier indicates decoding dependency, and identifying reference pictures within the identified one or more layers using a second identifier. The coding of the second identifier for pictures in a first layer is independent of pictures in a second enhancement layer. As such, for all pictures with a certain value of DependencyID, the syntax element frame_num is coded independently of other pictures with different values of DependencyID. Within all pictures with a pre-determined value of DependencyID, a default frame_num coding method is used.