Abstract: Provided are a video processing method and apparatus, and a device and a storage medium. The method comprises: when it is detected that an editing reference track of a video to be processed moves out of a video editing window, displaying a mask in the video editing window, wherein the editing reference track comprises a video editing track and/or an audio editing track; and then displaying, on the mask, the editing reference track of said video, wherein the editing reference track displayed on the mask is used for assisting a user with editing said video in the video editing window.

Abstract: A congestion control method and apparatus, a device, and a storage medium, where the congestion control method includes sending first data packets to a receive end, where a quantity of the first data packets is the first value, receiving a plurality of second data packets corresponding to all or a portion of the first data packets, where the second packets include one or more third data packets and one or more fourth data packets, and adjusting, by a transmit end, a congestion window based on the second data packets to adjust a value of the congestion window to a second value.

Abstract: A data transmission method implemented by a network device, where the data transmission method includes receiving a first data packet sent by a transmit end, buffering the first data packet to a low-priority queue when the first data packet is sent by the transmit end during a first round-trip time (RTT) of a data transmission phase between the transmit end and a receive end, receiving a second data packet from the transmit end, buffering the second data packet to a high-priority queue when the second data packet is not sent by the transmit end during the first RTT, and forwarding the second data packet in the high-priority queue before the first data packet in the low-priority queue.

Abstract: Disclosed are a method for determining semi-synchronous exposure parameters and an electronic device. The method in the embodiments of the present invention comprises: acquiring first exposure parameters corresponding to each lens; if it is determined that a preset EV limit value is not satisfied according to the first exposure parameters of each lens and adjacent lenses, respectively calculating exposure control parameters of each lens; calculating second exposure parameters corresponding to each lens according to the exposure control parameters of each lens and the first exposure parameters corresponding to each lens; if it is determined that the preset EV limit value is satisfied according to the second exposure parameters of each lens and adjacent lenses, determining the second exposure parameters corresponding to each lens to be semi-synchronized exposure parameters of each lens.

Abstract: A power-assisted negative pressure type flexible exoskeleton system used for an extravehicular spacesuit. The system includes an exoskeleton pneumatic control system, a plurality of inertial sensors, a plurality of negative pressure type flexible actuators and a plurality of flexible bending sensors, wherein pneumatic energy is provided for the exoskeleton system by a gas source in the exoskeleton control system, compressed air is cleaned by a water-separating gas filter, normal work of a pneumatic actuating element is guaranteed, a pressure reducing valve and a pressure gauge carry out voltage stability control on the output pressure of the gas source, a two-position two-way valve serves as a gas source switch valve, and three-position three-way valves, proportional pressure valves and the flexible actuators form four pneumatic control loops of the left and right elbow joints and the left and right knee joints of the exoskeleton system.

Abstract: This application discloses a method and an apparatus for forwarding a packet based on an integrated flow table. The integrated flow table includes a plurality of flow entries, each of the plurality of flow entries includes a mapping relationship between a match item and an operation set, the match item includes a plurality of packet header fields, and the method includes: obtaining a first packet; extracting a plurality of first packet header fields from a packet header of the first packet; searching the integrated flow table for a target flow entry matching the plurality of first packet header fields, to determine an operation set corresponding to the first packet; and performing the other operations in the operation set on the first packet, to obtain a second packet corresponding to the first packet, and forwarding the second packet.

Abstract: A data transmission method implemented by a network device, where the data transmission method includes receiving a first data packet sent by a transmit end, buffering the first data packet to a low-priority queue when the first data packet is sent by the transmit end during a first round-trip time (RTT) of a data transmission phase between the transmit end and a receive end, receiving a second data packet from the transmit end, buffering the second data packet to a high-priority queue when the second data packet is not sent by the transmit end during the first RTT, and forwarding the second data packet in the high-priority queue before the first data packet in the low-priority queue.

Abstract: A data transmission method implemented by a network device, where the data transmission method includes receiving a first data packet sent by a transmit end, buffering the first data packet to a low-priority queue when the first data packet is sent by the transmit end during a first round-trip time (RTT) of a data transmission phase between the transmit end and a receive end, receiving a second data packet from the transmit end, buffering the second data packet to a high-priority queue when the second data packet is not sent by the transmit end during the first RTT, and forwarding the second data packet in the high-priority queue before the first data packet in the low-priority queue.

Abstract: Disclosed are a method for determining semi-synchronous exposure parameters and an electronic device. The method in the embodiments of the present invention comprises: acquiring first exposure parameters corresponding to each lens; if it is determined that a preset EV limit value is not satisfied according to the first exposure parameters of each lens and adjacent lenses, respectively calculating exposure control parameters of each lens; calculating second exposure parameters corresponding to each lens according to the exposure control parameters of each lens and the first exposure parameters corresponding to each lens; if it is determined that the preset EV limit value is satisfied according to the second exposure parameters of each lens and adjacent lenses, determining the second exposure parameters corresponding to each lens to be semi-synchronized exposure parameters of each lens.

Abstract: A communication method includes obtaining, by a source remote direct memory access (RDMA) network interface card (RNIC), to-be-transmitted data sent by a source virtual RNIC (vRNIC), obtaining, by the source RNIC, identity indication information of a destination vRNIC and packet forwarding information, and encapsulating, by the source RNIC, the to-be-transmitted data to obtain a target packet, and sending the target packet to a destination RNIC, where the destination vRNIC is a vRNIC running on the destination RNIC.

Abstract: A data transmission method implemented by a network device, where the data transmission method includes receiving a first data packet sent by a transmit end, buffering the first data packet to a low-priority queue when the first data packet is sent by the transmit end during a first round-trip time (RTT) of a data transmission phase between the transmit end and a receive end, receiving a second data packet from the transmit end, buffering the second data packet to a high-priority queue when the second data packet is not sent by the transmit end during the first RTT, and forwarding the second data packet in the high-priority queue before the first data packet in the low-priority queue.

Abstract: A communication method includes obtaining, by a source remote direct memory access (RDMA) network interface card (RNIC), to-be-transmitted data sent by a source virtual RNIC (vRNIC), obtaining, by the source RNIC, identity indication information of a destination vRNIC and packet forwarding information, and encapsulating, by the source RNIC, the to-be-transmitted data to obtain a target packet, and sending the target packet to a destination RNIC, where the destination vRNIC is a vRNIC running on the destination RNIC.

Abstract: A congestion control method and apparatus, a device, and a storage medium, where the congestion control method includes sending first data packets to a receive end, where a quantity of the first data packets is the first value, receiving a plurality of second data packets corresponding to all or a portion of the first data packets, where the second packets include one or more third data packets and one or more fourth data packets, and adjusting, by a transmit end, a congestion window based on the second data packets to adjust a value of the congestion window to a second value.

Abstract: A data transmission method implemented by a network device, where the data transmission method includes receiving a first data packet sent by a transmit end, buffering the first data packet to a low-priority queue when the first data packet is sent by the transmit end during a first round-trip time (RTT) of a data transmission phase between the transmit end and a receive end, receiving a second data packet from the transmit end, buffering the second data packet to a high-priority queue when the second data packet is not sent by the transmit end during the first RTT, and forwarding the second data packet in the high-priority queue before the first data packet in the low-priority queue.

Abstract: A network state is verified in real-time by precomputing a data structure representing header spaces of data packets in respective equivalence classes (ECs) in a first snapshot of the network and in a second snapshot of the network at a later time. The data structure includes respective bitmaps indicating for each data packet forwarding rule for each node in the network a forwarding action to be taken for each EC in the network. The respective bitmaps store bits indicating for each data packet forwarding rule whether the data packet forwarding rule applies to the respective ECs in the network. The snapshots are compared to identify network paths that have changed between a time of the first snapshot and the second snapshot of the network and network verification operations are performed on the changed network paths as a logical function of a bitmap corresponding to each changed network path.

Abstract: This application discloses a method and an apparatus for forwarding a packet based on an integrated flow table. The integrated flow table includes a plurality of flow entries, each of the plurality of flow entries includes a mapping relationship between a match item and an operation set, the match item includes a plurality of packet header fields, and the method includes: obtaining a first packet; extracting a plurality of first packet header fields from a packet header of the first packet; searching the integrated flow table for a target flow entry matching the plurality of first packet header fields, to determine an operation set corresponding to the first packet; and performing the other operations in the operation set on the first packet, to obtain a second packet corresponding to the first packet, and forwarding the second packet.

Abstract: A network state is verified in real-time by precomputing a data structure representing header spaces of data packets in respective equivalence classes (ECs) in a first snapshot of the network and in a second snapshot of the network at a later time. The data structure includes respective bitmaps indicating for each data packet forwarding rule for each node in the network a forwarding action to be taken for each EC in the network. The respective bitmaps store bits indicating for each data packet forwarding rule whether the data packet forwarding rule applies to the respective ECs in the network. The snapshots are compared to identify network paths that have changed between a time of the first snapshot and the second snapshot of the network and network verification operations are performed on the changed network paths as a logical function of a bitmap corresponding to each changed network path.

Abstract: Method and apparatuses are disclosed to substantially compensate for various unwanted interferences and/or distortions within a communications receiver. Each of these apparatuses and methods estimate the various unwanted interferences and/or distortions within the communications receiver. Each of these apparatuses and methods remove the estimates of the various unwanted interferences and/or distortions within the communications receiver from one or more communications signals within the communications receiver to substantially compensate for the various unwanted interferences and/or distortions.

Abstract: Embodiments include processes, systems, and devices that allow a white space base station to request available frequency ranges for white space transmission in a local area. A white space finder service models a primary user device's transmission signal propagation area using terrain data associated with the local area of the primary user device. The white space finder service also determines, based on the location of the white space base station and the modeled propagation area, one or more locally available, non-interfering frequency ranges and provides them to the white space base station. The white space base station compares the provided frequency ranges to policies and selects one or more of the available frequencies that accommodate the policies. The white space base station also maps the transmission frequency ranges to virtual frequency ranges for transmission by a software-defined radio employing spectrum virtualization.