H04N21/64792

Adaptive video streaming

A method, system and apparatus for image capture, analysis and transmission are provided. A link aggregation method involves identifying controller network ports to a source connected to the same subnetwork; producing packets associating corresponding controller network ports selected by the source CPU for substantially uniform selection; and transmitting the packets to their corresponding network ports. An image analysis method involves producing by a camera an indication whether a region of an image differs by a threshold extent from a corresponding region of a reference image; transmitting the indication and image data to a controller via a communications network; and storing at the controller the image data and the indication in association therewith. The controller may perform operations according to positive indications. A transmission method involves receiving user input in respect of a video stream and transmitting, in accordance with the user input, selected data packets of selected image frames thereof.

Seamless content encoding and transmission

Systems, apparatuses, and methods are described for encoding media content based on an ending delay of first media content and a startup delay of second media content. Second media content may be configured for transmission after first media content in a media content stream. The first media content may be associated with an ending delay corresponding to transmission and/or decoding of frames of the first media content. The second media content may be associated with a starting delay corresponding to transmission and/or decoding of frames of the second media content. The first media content and the second media content may be encoded using different encoding formats. Based on comparing the ending delay and starting delay to a threshold, encoding parameters may be selected, one or more frames may be removed from the first media content and/or the second media content, and/or buffers of one or more devices may be adjusted.

Electronic device and method for transmitting and receiving content

An electronic device and a method of operating the same are provided. The electronic device includes a communication circuit configured to transmit or receive data using a call channel established through a call connection with an external electronic device, and a processor configured to transmit content, which is pre-processed using a first transmission filter, to the external electronic device through the call channel, receive a first real-time control protocol (RTCP) message transmitted by the external electronic device through the call channel, identify a status of the call channel, based on the first RTCP message, determine whether or not to perform an operation of pre-processing the content to be transmitted to the external electronic device using a second transmission filter, transmit a second RTCP message using the second transmission filter to the external electronic device, and perform transmission of the content, based on the second transmission filter.

Ultra-low latency video streaming

Techniques are described for low-latency streaming of media content using a lossless protocol. For example, a media stream, comprising encoded video data, can be streamed to a plurality of streaming clients via the lossless protocol. The plurality of streaming clients can be monitored to determine whether any of them have fallen behind in streaming the media stream. When a streaming client falls behind, a portion of video data to be streamed to the streaming client can be selectively dropped based on scalability information and/or long term reference (LTR) frame information. The low-latency streaming can be performed without using per-client quality feedback from the plurality of streaming clients. When streaming using a semi-lossy protocol, a plurality of delivery modes can be used, where each delivery mode is for a different type of encoded video data and provides a different level of reliability.

Video transmission method and system and device

A video transmission method, system and a device includes a sending device that generates and sends a source video stream, where the source video stream includes a plurality of video data packets, each video data packet includes discard indication information, a discard priority indicated by discard indication information included in a first video data packet is higher than a discard priority indicated by discard indication information included in a second video data packet, video data in a video frame whose frame type is a non-reference B frame is encapsulated into the first video data packet, and video data in a video frame whose frame type is an I frame, a P frame, or a reference B frame is encapsulated into the second video data packet.

Intrasegment Adjustment of Video Transmission Rate

A method includes determining a first transmission rate for transmitting an entirety of a segment of a video stream to a client device. The segment includes a set of frames. In some implementations, the method includes, after transmitting a first subset of the set of frames at the first transmission rate, detecting that a network connectivity of the client device has reduced below a connectivity threshold associated with the first transmission rate. In some implementations, the method includes transmitting an entirety of the segment at a second transmission rate that is less than the first transmission rate. In some implementations, the method includes triggering the client device to present a second subset of the set of frames that corresponds to a temporal position in the video stream after the first subset of the set of frames while foregoing re-presentation of the first subset of the set of frames.

LIVE MEDIA CONTENT DELIVERY SYSTEMS AND METHODS

Methods, systems and arrangements are described herein for providing low-latency content delivery networks usable for widespread broadcasting of live streaming media, such as live interactive streaming media, over IP networks. Also described are methods, systems and arrangements for enabling low-latency live streaming media to be made available to a wide range of different viewer devices having various capabilities, and under various network conditions. Also provided are methods, systems and arrangements for low-latency creation of the live streaming media broadcasts.

Method and device for transmitting image

Provided are a method and device for transmitting an image. The method includes: adjusting an image compression ratio based on a current network transmission condition; performing compression processing on an image to be transmitted according to the adjusted image compression ratio to obtain a compressed image; and sending the compressed image to a viewing device side for the viewing device side to play the compressed image. The present disclosure ensures the fluency of image playback on the viewing device side, and improves the viewing experience of a user.

Monitoring and surveillance system arranged for processing video data associated with a vehicle, as well as corresponding devices and method

A monitoring and surveillance system arranged for processing video data associated with a vehicle, wherein said system is arranged to operate in at least two operating modi, a first modus of said two modi being associated with a first latency requirement for said video data and a second modus of said two modi being associated with a second latency requirement, said system comprising a camera unit, arranged to be installed in said vehicle, wherein said camera unit is arranged for capturing video data; a streaming unit, arranged to be installed in said vehicle, and arranged for receiving said video data and for transmitting said video data over a telecommunication network to a video processing server; said video processing server arranged for selecting a modus of said at least two operating modi, and for communicating said selected modus, over said telecommunication network, to said camera unit such that said streaming unit can be tuned to said selected modus. Complementary systems and methods are also presented herein.

PARTIAL VIDEO ASYNC SUPPORT USING R-MACPHY DEVICE

Systems and methods for providing timing information from a R-MACHPHY device to a video core while the R-MACPHY device receives video data from the video core while operating in asynchronous mode. In some embodiments, the R-MACPHY device may alternately and selectively configure its mode of operation to alternate between synchronous mode and asynchronous mode, and provide the timing information to the video core when it switches to asynchronous mode.