Abstract: A method of coding implemented by a video encoder. The method includes encoding a representation of video data into a bitstream, the bitstream being prohibited from including a fisheye supplemental enhancement information (SEI) message and one of a projection indication SEI message and a frame packing indication SEI message that both apply to any particular coded picture in the bitstream; and transmitting the bitstream to the video decoder.

Abstract: A method for reporting a streaming quality is shown, wherein at least one continuous media stream is streamed to a client (601), and wherein the streaming is controlled by a protocol (109) that is operated between the client (601) and a server (600), the method including selecting at least one quality metric and a quality metrics class from a pre-defined set of at least two quality metrics classes, and reporting to the server (600) the quality of the streaming based on the at least one selected quality metric and the selected quality metrics class. The protocol (109) is preferably a Real-time Streaming Protocol (RTSP) in combination with a Session Description Protocol (SDP) in the context of the 3GPP Packet-Switched Streaming Service (PSS). Also shown is a computer program, a computer program product, a system, a client, a server and a protocol.

Abstract: An example device for processing video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to decode a supplemental enhancement information (SEI) network abstraction layer (NAL) unit of a video bitstream including the video data, the SEI NAL unit containing a motion constrained tile sets (MCTS) nesting SEI message; determine that the SEI NAL unit does not contain any non-MCTS-nesting SEI messages in response to the SEI NAL unit containing the MCTS nesting SEI message; and decode subsequent SEI messages of the SEI NAL unit as MCTS nesting SEI messages in response to the determination.

Abstract: This application provides a terminal interface display method and a terminal. A specific solution includes: determining, by a terminal, a frequently used touch area on a first side of the terminal in response to a first gesture input by a user on a first interface, where the first gesture is a gesture input by a finger on a first side of the user, the frequently used touch area is a touch area that is on a terminal interface and that has undergone user operation whose frequency or quantity of times is greater than a first threshold, and the first interface includes at least two application icons; and displaying, by the terminal, at least one frequently used application icon of the at least two application icons in the frequently used touch area on the first side.

Abstract: Provided are an electroluminescent compound having a structure represented by Formula I, a thermally activated delayed fluorescence material and an application thereof. The electroluminescent compound has TADF characteristics and may be applied to a light emitting layer of an OLED device as a thermally activated delayed fluorescence material. The OLED device includes an anode, a cathode, and at least one organic thin film layer comprising the thermally activated delayed fluorescence material in a light emitting layer between the anode and the cathode. The electroluminescent compound effectively reduces the overlap between HOMO and LUMO through special molecular structure design, so that ?EST is reduced to less than 0.25 eV, which satisfies reverse crossing of energy from a triplet state to a singlet state, effectively improves transmission capacities of two kinds of carriers, improves carrier balance, and thus significantly improves light emitting efficiency of the OLED device.

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: The present disclosure provides a single carrier based multilevel modulation method, a single carrier based multilevel modulation device, and a storage medium. In each control period, a modulated wave value corresponding to each of n switch pairs is obtained according to a reference voltage to obtain n modulated wave values, a triangular carrier having an amplitude of n is generated and compared with each of the n modulated wave values to obtain control signals for each of the n switch pairs, and for each phase, the control signals are input to the corresponding switch pairs of the phase bridge.

Abstract: Systems, methods, and computer readable media are described for generating a regional nesting message. In some examples, a video bitstream is obtained and an encoded video bitstream is generated using the video data. The encoded video bitstream includes a regional nesting message that contains a plurality of nested messages and a plurality of region data defining a plurality of regions of a picture of the encoded video bitstream. For example, a first nested message of the regional nesting message includes a first set of data and a first region identifier indicating that the first set of data is to be applied to a first region of the plurality of regions of the picture.

Abstract: An example device for processing video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to determine whether an access unit of the video data includes a temporal motion constrained tile sets (MCTS) supplemental enhancement information (SEI) message; and decode an MCTS extraction information set (MCTS-EIS) SEI message of the access unit only when the access unit includes the temporal MCTS SEI message.

Abstract: Systems and methods are provided for specifying regional information such as a source and nature of a recommend viewport and a priority among multiple recommended viewports. Virtual reality video data can represent a 360-degree view of a virtual environment. In various examples, a region of the virtual reality video data can be determined, where the region includes a sub-section of the 360-degree view. A data structure can be generated for the region, where the data structure includes parameters that describe the region. The parameters can include a source associated with the region. The virtual reality video data and the data structure can be stored in a file.

Abstract: A polyamide composition with improved melt flow containing (A) 20 to 99.9 wt % of one or more polyamides independently selected from the group consisting of aliphatic polyamide, semi-aromatic polyamide, aromatic polyamide and their blends, (B) 0.1 to 10 wt % of one or more polyether polyols having a melting temperature below room temperature, (C) 0 to 70 wt % of one or more reinforcing agents, and (D) 0 to 50 wt % of one or more other additives, each based on the whole composition. A molding article produced from the polyamide composition also is disclosed.

Abstract: A device includes, in a first track of the file, a first end of sequence (EOS) network abstraction layer (NAL) unit for a coded video sequence of a bitstream. The first EOS NAL unit is in a first access unit of the coded video sequence. The device also includes, in a second track of the file, a second EOS NAL unit for the coded video sequence. The second EOS NAL unit is in a second access unit of the coded video sequence, the second EOS NAL unit being different from the first EOS NAL unit. The device may perform similar actions for end of bitstream (EOB) NAL units.

Abstract: In one example, a device for retrieving video data includes one or more processors configured to, in response to determining that a lowest track of a plurality of tracks, the lowest track including a base layer of the video data carrying a lowest sub-layer of the video data, is to include sample entry type values for samples indicating that convenient random access is enabled, set sample entry type values for samples of each of the other tracks of the plurality of tracks that include video data to indicate that convenient random access is enabled, and generate a file including the plurality of tracks, such that the sample entry type values for the tracks of the plurality of tracks indicate that convenient random access is enabled.

Abstract: A method for reporting a streaming quality is shown, wherein at least one continuous media stream is streamed to a client (601), and wherein the streaming is controlled by a protocol (109) that is operated between the client (601) and a server (600), the method including selecting at least one quality metric and a quality metrics class from a pre-defined set of at least two quality metrics classes, and reporting to the server (600) the quality of the streaming based on the at least one selected quality metric and the selected quality metrics class. The protocol (109) is preferably a Real-time Streaming Protocol (RTSP) in combination with a Session Description Protocol (SDP) in the context of the 3GPP Packet-Switched Streaming Service (PSS). Also shown is a computer program, a computer program product, a system, a client, a server and a protocol.

Abstract: In one example, a device for retrieving video data includes one or more processors configured to receive data describing a sample entry type for a sample of a video bitstream, the sample entry type being one of ‘hev1’ or ‘hev2,’ wherein the sample comprises video data encoded according to one of High-Efficiency Video Coding (HEVC) or layered HEVC (L-HEVC), and wherein one or more other samples including video data precede the sample in the video bitstream in decoding order, and in response to the sample entry type being ‘hev1’ or ‘hev2’ and the sample comprising the video data encoded according to one of HEVC or L-HEVC, retrieve the sample to perform random access using the sample, without retrieving the video data of any of the one or more other samples that precede the sample, and without retrieving parameter sets of any previous samples of the video bitstream in decoding order.

Abstract: In an example, a method of coding video data includes obtaining one or more video coding layer (VCL) network abstraction layer (NAL) units of an access unit and a first layer of a multi-layer bitstream of video data. The method also includes only coding one or more non-VCL NAL units containing an SEI message applicable to the VCL NAL units of the first layer together with the VCL NAL units of the first layer such that within the access unit the bitstream does not contain any coded pictures of any other layer of the multi-layer bitstream between the VCL NAL units of the first layer and the non-VCL NAL units containing the SEI message applicable to the VCL NAL units of the first layer.

Abstract: A device for decoding video data includes a memory configured to store the video data and one or more processors configured to receive a slice of the video data, parse an intra block copy (IBC) syntax element to determine that an IBC mode is enabled for the slice, parse a slice type syntax element associated with the slice to determine the slice is an I slice, and decode the slice as an I slice by decoding all blocks of the slice using intra prediction coding modes.

Abstract: A device includes, in a first track of the file, a first end of sequence (EOS) network abstraction layer (NAL) unit for a coded video sequence of a bitstream. The first EOS NAL unit is in a first access unit of the coded video sequence. The device also includes, in a second track of the file, a second EOS NAL unit for the coded video sequence. The second EOS NAL unit is in a second access unit of the coded video sequence, the second EOS NAL unit being different from the first EOS NAL unit. The device may perform similar actions for end of bitstream (EOB) NAL units.

Abstract: The multi-layered membrane (100) for separating oil and water includes a porous top layer (110), a porous bottom layer (130), and a particulate middle layer (120) positioned between the top layer (110) and the bottom layer (130), the middle layer (120) being hydrophobic and adapted for adsorbing oil, such as trace amounts of oil, that may pass through the top layer (110). The top layer (110) and the bottom layer (130) are hydrophilic and oleophobic. While the membrane (100) does not require any external pressure other than the gravitational forces exerted on the oil/water mixture W to drive the filtration of the oil/water mixture W through the membrane (100), the filtration can be driven by a vacuum or other type of external pressure.

Abstract: Techniques are described related to output and removal of decoded pictures from a decoded picture buffer (DPB). The example techniques may remove a decoded picture from the DPB prior to coding a current picture. For instance, the example techniques may remove the decoded picture if that decoded picture is not identified in the reference picture set of the current picture.