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1.发明申请
公开(公告)号：WO2022192769A2
公开(公告)日：2022-09-15
申请号：PCT/US2022/020150
申请日：2022-03-14
申请人： TENCENT AMERICA LLC
发明人： ABHISHEK, Rohit , SODAGAR, Iraj
IPC分类号： H04L65/65 , H04L65/60 , H04L65/1069 , H04L65/403 , H04L65/70 , H04M3/568
摘要： A method and system for audio mixing in a teleconference using a Session Description Protocol (SDP) and Real-time Transport Protocol (RTP) signaling of audio mixing gain is provided. The method includes receiving an input audio stream from a 360-degree video/audio stream that includes an audio mixing gain which includes audio gain from the input audio stream and audio gain from overlay audio streams, declaring a RTP header extension for the input audio stream using the SDP, the RTP header extension, and signaling the audio mixing gain based on a single attribute of the SDP using the RTP header extension. An element of the RTP header extension may include an element identifier, a length of an extension element, and a magnitude of the audio mixing gain of the RTP header extension. The RTP header extension may use a one-byte or two-byte header extension format which is declared using the SDP.
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公开(公告)号：WO2023060029A1
公开(公告)日：2023-04-13
申请号：PCT/US2022/077449
申请日：2022-10-03
申请人： NETFLIX, INC.
IPC分类号： H04N21/24 , H04N21/442 , H04N21/845 , H04N21/2381 , H04N21/258 , H04N21/238 , H04N21/61 , H04N21/643 , H04N21/658 , H04L65/70 , H04L65/80 , H04L67/02 , H04L69/326 , H04N21/23805 , H04N21/2402 , H04N21/25833 , H04N21/4424 , H04N21/6125 , H04N21/64322 , H04N21/6582 , H04N21/8456
摘要： In various embodiments, a media delivery application transmits encoded chunks of a media title to a playback application. In operation, the media delivery application receives, via a media channel, an encoded chunk request that has been transmitted over a TCP connection. The media delivery application also receives, via a side channel, a pacing specification that is associated with the encoded chunk request and has been transmitted over the TCP connection. As per the encoded chunk request, the media delivery application retrieves encoded chunk content. The media delivery application sets a parameter associated with the TCP connection equal to a parameter value based on the pacing specification. Subsequently, the media delivery application causes TCP segments corresponding to the encoded chunk content to be transmitted, via the media channel, over the TCP connection in accordance with the first parameter value.
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公开(公告)号：WO2022188592A1
公开(公告)日：2022-09-15
申请号：PCT/CN2022/076103
申请日：2022-02-11
申请人： 百果园技术（新加坡）有限公司 , 姜焰
IPC分类号： H04L65/70
摘要： 本申请公开了一种服务器的选择方法、装置、设备及介质。由于预先确定了每个第二区域集合所对应的通用服务器，后续接收到目标群组的主叫方发送的群组通话请求之后，根据该群组通话请求中携带的目标群组中每个会话成员的第一目标区域的信息，将包含每个第一目标区域的第一区域集合与预先保存的每个第二区域集合进行匹配，若确定第一区域集合与预先保存的任一第二区域集合匹配，根据匹配的第二区域集合所对应的通用服务器，确定目标群组进行群组通话的中心服务器，从而实现快速且准确地确定中心服务器，简化了选路服务器确定中心服务器的过程，极大地降低选路服务器每次实时确定中心服务器的压力和确定选路结果的延迟，提高确定中心服务器的效率。
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公开(公告)号：WO2023060103A1
公开(公告)日：2023-04-13
申请号：PCT/US2022/077571
申请日：2022-10-05
申请人： GOOGLE LLC
发明人： HOROWITZ, Michael , JANG, Wonkap
IPC分类号： H04N19/124 , H04N19/15 , H04N19/154 , H04N19/169 , H04N19/192 , H04N19/196 , H04L65/70 , H04N19/197
摘要： A method (400) includes obtaining a segment of image data (50) that represents a portion of a frame of data (52) to be encoded. The method includes determining, based on the segment and a target bit rate (162), a quantization parameter (QP) value (164). The method includes determining a minimum QP value (212) and a maximum QP value (214) that establishes a range of QP values an integrated bit rate control algorithm (172) may use to encode the segment. The method includes encoding the segment with a first QP value that is greater than the minimum QP value and less than the maximum QP value. The method includes adjusting, by the control algorithm, the first QP value to a second QP value that is greater than the minimum QP value and less than the maximum QP value. The method includes transmitting the encoded segment to a remote device (10).
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公开(公告)号：WO2023044143A2
公开(公告)日：2023-03-23
申请号：PCT/US2022/044080
申请日：2022-09-20
申请人： TENCENT AMERICA LLC
发明人： SODAGAR, Iraj
IPC分类号： H04L65/65 , H04L65/612 , H04L65/70 , H04L67/146 , H04N21/23406 , H04N21/26613 , H04N21/812 , H04N21/85403
摘要： A method and apparatus may be provided for building a linear media source extension (MSE) buffer from two or more nonlinear media sources using MPD chaining. The method may include parsing at least one obtained media presentation segment (MPD), and obtain a live MPD based on the at least one URL, the live MPD comprising one or more live media segments. The method may include appending the one or more ad media segments to a first MSE source buffer based on a first timing model and chaining the one or more live media segments to the one or more ad media segments by appending the one or more live media segments to the first buffer based on a second timing model. The one or more ad media segments may be dispatched and the one or more live media segments based on the first timing model and the second timing model.
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公开(公告)号：WO2023062271A1
公开(公告)日：2023-04-20
申请号：PCT/FI2022/050659
申请日：2022-10-04
发明人： KONDRAD, Lukasz , ILOLA, Lauri Aleksi , KAMMACHI SREEDHAR, Kashyap , MATE, Sujeet Shyamsundar , AKSU, Emre Baris
IPC分类号： H04N21/234 , H04N13/161 , H04N13/271 , H04N21/6437 , H04L65/65 , H04L65/70 , H04N21/84
摘要： The embodiments relate to a method and technical equipment for volumetric video coding. The method comprises receiving (905) a bitstream representing coded volumetric video; demultiplexing (910) the bitstream into a number of sub-bitstreams; encapsulating (915) the sub-bitstreams to a Real-time Transfer Protocol (RTP) payload format; sending (920) the encapsulated sub-bitstreams over one or more RTP session to a client; and providing (925) to the client information allowing the client to map a RTP session to one or more appropriate sub-bitstream.
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7.发明申请
公开(公告)号：WO2023021235A1
公开(公告)日：2023-02-23
申请号：PCT/FI2022/050499
申请日：2022-07-15
发明人： MATE, Sujeet, Shyamsundar , HANNUKSELA, Miska, Matias , KAMMACHI SREEDHAR, Kashyap , AKSU, Emre, Baris
IPC分类号： H04N21/2343 , H04N21/4402 , H04N19/174 , H04N21/6437 , H04L65/70 , H04N19/70
摘要： The embodiments relate to apparatuses and methods for subpicture encoding. According to an embodiment a method for a sender apparatus comprises receiving (901) image data; partitioning (902) the image data into subpictures; generating (903) a transmission packet comprising said subpictures and a packet header; inserting (904) into the transmission packet a subpicture header comprising information regarding the subpictures; and transmitting (905) the transmission packet to be delivered to a receiver apparatus.
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公开(公告)号：WO2023281068A1
公开(公告)日：2023-01-12
申请号：PCT/EP2022/069098
申请日：2022-07-08
发明人： THOMAS, Rainer , POTYKA, Andreas
IPC分类号： H04J3/06 , H04L65/70 , H04L65/80 , H04L65/764
摘要： A jitter compensation during receipt of voice content (1, 2, 3, 4) via IP-based networks in voice packets (110, 120; 210) with a header (H) and payload (PL) is described, wherein a piece of time information of a transmitter time of a transmitter, which indicates the time of sending (ts) of the voice packet (110, 120; 210), is contained in the voice packet (110, 120; 210). It is provided that the receiver initializes a receiver clock using a transmitter time by means of the time information in the initial packet, that the receiver determines a minimum relative packet transmission duration (delta) after the initialization of the receiver clock, adjusts the receiver time as a function of the minimum relative packet transmission duration (delta), during the receipt of a first voice packet (111) with voice content, determines the actual time of receipt of this voice packet and determines the buffer (DJB) as a function of the actual time of receipt
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9.发明申请
公开(公告)号：WO2023073283A1
公开(公告)日：2023-05-04
申请号：PCT/FI2022/050696
申请日：2022-10-20
IPC分类号： H04N13/161 , H04N21/234 , H04L65/70 , H04N21/6437 , H04L65/65
摘要： The embodiments relate to a method comprising receiving a bitstream representing coded volumetric video, the bitstream being a composition of a number of video sub-bitstreams and atlas sub-bitstreams; encapsulating the video sub-bitstream to a Real-time Transfer Protocol (RTP) packet; encapsulating one or more components of the atlas sub-bitstream to one or more Real-time Transfer Protocol (RTP) packets as Visual Volumetric Video-based Coding (V3C) Network Abstraction Layer (NAL) units; sending the RTP packets over one or more RTP session to a client; and signalling per RTP session,information on the one or more atlas sub-bitstreams. The embodiments also relate to a technical equipment for implementing the method.
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公开(公告)号：WO2023009169A1
公开(公告)日：2023-02-02
申请号：PCT/US2021/072179
申请日：2021-11-02
发明人： DEOGUN, Pravjyot Singh , GANAPATHY, Pradeep , PAZOS, Carlos Marcelo Dias , MITTAL, Sanjeev , WANG, Min , SINGH, Vikram , KANTHARAJU, Manjunatha , LAKSHMANASWAMY, Shankar Ganesh , KOTA, Sumanth Kumar
IPC分类号： H04W52/02 , H04W76/28 , H04W28/02 , H04L65/60 , H04L65/65 , H04N21/6437 , H04L65/70 , H04W28/0221 , H04W52/0216
摘要： This disclosure provides systems, methods, and apparatuses for adjusting an encoding timing or a decoding timing in a manner that minimizes disruption of ongoing uplink or downlink traffic. Some aspects more specifically relate to decoupling adjustment of the encoding timing and adjustment the decoding timing to enable independent adjustment of the encoding timing or the decoding timing. In some aspects, a user equipment (UE) may perform adjustment of the encoding timing, relative to an active time indicated by a discontinuous reception (DRX) configuration, at a time at which uplink traffic is absent. Additionally, or alternatively, the UE may perform adjustment of the decoding timing, relative to an active time indicated by a DRX configuration, at a time at which downlink traffic is absent. Accordingly, upon receiving a DRX configuration, the UE may wait until a period in which uplink traffic or downlink traffic is absent to perform a timing adjustment.
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