Abstract: Techniques and systems are provided for encoding and decoding video data. For example, a method of encoding video data includes generating an encoded video bitstream comprising multiple layers. The encoded video bitstream includes a video parameter set defining parameters of the encoded video bitstream. The video parameter set includes video usability information. The method further includes determining whether timing information is signaled in the video usability information of the video parameter set. The method further includes determining whether to signal hypothetical reference decoder parameters in the video usability information of the video parameter set based on whether timing information is signaled in the video usability information.

Abstract: A device generates, in a container box of a file for storage of video contents, a SampleGroupDescription box that provides a sample group description for a sample grouping. The SampleGroupDescription box includes a grouping type syntax element having a particular value. Additionally, the SampleGroupDescription box includes one or more sample group entries. The device generates, in the same container box, a plurality of SampleToGroup boxes. Each respective SampleToGroup box of the plurality of SampleToGroup boxes includes a respective grouping type syntax element having the particular value, includes a respective sample count syntax element indicating a number of samples in a respective sample grouping, and includes a respective group description index syntax element indicating an index of an entry in the SampleGroupDescription box which describes samples of the respective sample grouping. Each sample of the respective sample grouping comprises a respective picture of the video contents.

Abstract: In general, the disclosure describes techniques related to block vector coding for Intra Block Copy and Inter modes. In one example, the disclosure is directed to a video coding device comprising a memory configured to store video data and one or more processors. The video coding device is configured to determine a reference picture used for coding the current video block and determine a picture order count (POC) value for the reference picture. In response to the POC value for the reference picture being equal to a POC value for a current picture that includes the current video block, the video coding device sets a value of a syntax element to indicate that a reference picture list includes the current picture. Otherwise, the video coding device sets the value of the syntax element to indicate that the reference picture list does not include the current picture.

Abstract: Techniques and systems are provided for encoding video data. For example, a method of encoding video data includes generating, by an encoder, an encoded video bitstream according to a first coding protocol. The encoded video bitstream includes one or more enhancement layers and a video parameter set defining parameters of the encoded video bitstream. The method further includes determining that a base layer is to be provided to a decoding device by an external source and is not to be provided as part of the encoded video bitstream. The method further includes assigning a minimum value to a syntax structure in the video parameter set when it is determined that the base layer is to be provided by the external source. The syntax structure defines profile, tier, and level parameters for the base layer.

Abstract: An apparatus for coding video information according to certain aspects includes a memory and computing hardware. The memory is configured to store video information. The computing hardware is configured to process at least one of a first signal indicating whether at least one sublayer of one or more layer sets has bit rate information to signal or a second signal indicating whether at least one sublayer of the one or more layer sets has picture rate information to signal.

Abstract: In one example, a device for retrieving media data includes one or more processors implemented in circuitry and configured to parse system level information of a media bitstream encapsulating a video elementary stream, the system level information indicating that the video elementary stream includes one or more supplemental enhancement information (SEI) messages and payload types for each of the SEI messages, extract the one or more SEI messages and the payload types from the system level information, and send the one or more SEI messages and the payload types to one or more other processing units of the device.

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 video layer having a picture. The processor is configured to determine whether the picture is a non-picture-order-count (POC)-anchor picture, and based on the determination of whether the picture is a non-POC-anchor picture, perform one of (1) refraining from indicating a POC reset in connection with the picture, or (2) indicating the POC reset in connection with the picture. The processor may encode or decode the video information.

Abstract: In an example, a method of coding video data includes coding one or more non-video coding layer (VCL) network abstraction layer (NAL) units of a layer of a multi-layer bitstream of video data, where the one or more non-VCL NAL units contain an SEI message having an SEI payload type. The method also includes determining one or more syntax values of the multi-layer bitstream to which the SEI message applies based on the SEI payload type.

Abstract: A constructed photodetector, an optical receiver, and a receiver unit in an optical communication system are disclosed. One example of the disclosed constructed photodetector includes an optoelectronic element having an active area that converts light having a wavelength of interest into electrical signals and a substrate on a face that opposes the active area, where the substrate is non-transparent to light having the wavelength of interest. The constructed photodetector further includes a lens-chip that is at least partially transparent to light having the wavelength of interest, where the lens-chip includes a first side and an opposing second side, where the first side of the lens-chip includes an integrated lens, and where the second side of the lens-chip includes one or more electrical traces. The constructed photodetector further includes at least one connector that provides a physical and electrical connection between the optoelectronic element and the lens-chip.

Abstract: A method, electronic device, computer program product, system and circuit assembly are provided for allocating one or more redundant pictures by taking into consideration the information content of the primary pictures, with which the redundant pictures would be associated. In particular, primary pictures that are determined to be more sensitive to transmission loss or corruption may be allocated one or more redundant pictures, while those that are less sensitive may not be so allocated. By selectively allocating redundant pictures to only those primary pictures that are more sensitive, the method disclosed reduces the amount of overhead associated with redundant pictures and increases the coding efficiency, without sacrificing the integrity of the video data.

Abstract: Techniques and systems are provided for decoding and processing video data. For example, a method of decoding video data includes accessing an encoded video bitstream comprising multiple layers. The encoded video bitstream includes multiple access units, with a first access unit including an end of sequence network abstraction layer unit. A second access unit includes an intra random access point picture and is a next subsequent access unit in decoding order following the first access unit. The method further includes reinitializing decoding at the second access unit based on the second access unit being the next subsequent access unit in decoding order following the end of sequence network abstraction layer unit of the first access unit.

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit configured to store video information associated with a plurality of layers and a processor. The processor is configured to obtain information associated with a current access unit (AU) to be coded, the current AU containing pictures from one or more layers of the plurality of layers. The processor is also configured to reset a picture order count (POC) of a layer included in the current AU via (1) resetting only a most significant bit (MSB) of the POC or (2) resetting both the MSB of the POC and a least significant (LSB) of the POC. The processor is further configured to, for pictures in one or more AUs subsequent to the current AU in decoding order: set a value of a first flag indicative whether a reset of the POC is a full reset.

Abstract: In an example, a method of coding video data includes coding, by a video coder, at least a portion of a picture of an independently decodable non-base layer of a multi-layer bitstream. The method also includes coding, by the video coder, data indicating a picture order count (POC) value reset for a POC least significant bits (LSB) value of the picture only when the picture has a POC LSB value for the picture is equal to zero.

Abstract: A genetically enhanced cyanobacterial host cell, Cyanobacterium sp. ABICyanoI, is disclosed. The enhanced Cyanobacterium sp. ABICyanoI produces a compound or compounds of interest.

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: 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 accordance with an embodiment, a method of operating a streaming media client includes electronically receiving, from a network, information regarding component access points of a first multiplexed representation of a streaming content. The first multiplexed representation of the streaming content includes a plurality of media components, and each component access point defines an independently coded access point for one of the plurality of media components. The method further includes selecting a first segment of the first multiplexed representation of the streaming content based on the information regarding the component access points, and requesting the selected first segment of the first multiplexed representation of the streaming content from the network.

Abstract: The techniques of this disclosure may be generally related to reference statues of pictures. The techniques may store the reference status information of reference pictures of a picture, at an instance when the picture is being coded. The techniques may then utilize the reference status information of the reference pictures of the picture, at the instance when the picture was coded, to inter-predict video blocks of a subsequent picture.

Abstract: An apparatus configured to code video information in a bitstream includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a video layer having a current picture. The processor is configured to: determine whether a slice segment header extension associated with the current picture is present in the bitstream; and determine that one or more most significant bits (MSBs) of a picture order count (POC) value associated with the current picture are not present in the bitstream in response to a determination that the slice segment header extension associated with the current picture is not present in the bitstream. The processor may encode or decode the video information in the bitstream.