摘要:
An improved system and method for transmitting a multiplexed service stream over an error prone DVB-H channel. Media IP packets are priority labeled. For each time slice burst, the IP packets are grouped based upon the priority labels. MPE-FEC matrices are made for the different priority labels in each time slice burst. RSDT columns are computed such that the average service bit rate does not overshoot the maximum allowed service bit rate, and the protection increases with priority. The ADT and RSDT of the MPE-FEC matrices are then encapsulated into MPE-FEC sections.
摘要:
The specification and drawings present a new method, system, apparatus and software product for signaling parameters of multiple buffers by a terminal to a server and determining multiple buffer status of the terminal by the server using these parameters, e.g., for an adequate rate adaptation of multimedia streaming services provided to the terminal by the server. The terminal can be (but is not limited to) a computer, a communication device, a wireless communication device, a portable electronic device, a mobile electronic device, a mobile phone, etc.
摘要:
A method for indicating size, shape and location of a region within a digital picture the picture being divided into a set of blocks. A value for at least one size parameter, which is indicative of a number of the blocks within said region is defined, and a value for at least one shape evolution parameter, which is indicative of a selection order of the blocks in said region is selected. Then preferably the values for said at least one size parameter and said at least one shape evolution parameter are encoded into a bitstream of a video sequence in order to indicate size, shape and location of the region within the picture.
摘要:
A method of encoding video data including at least one primary picture and at least one redundant picture corresponding to the information content of the primary picture. A reference picture list of the at least one redundant picture includes multiple reference pictures. The video sequence is encoded such that a number of reference pictures are disabled from the reference picture list of the at least one redundant picture, the number being at least one, but less than the total number of the reference pictures on the reference picture list.
摘要:
A methodic and apparatus for video decoding including receiving encoded video data; decoding the video data to form decoded video data and determining if the decoded the video data contains an error. When it is determined that an error is present, a message is sent to a transmitting video encoder requesting an update of at least the portion of the video data containing the error, wherein the update message is only sent if a pre-determined period has elapsed since a previous update message was sent. A complementary encoder is also described.
摘要:
Joint coding of depth map video and texture video is provided, where a motion vector for a texture video is predicted from a respective motion vector of a depth map video or vice versa. For scalable video coding, depth map video is coded as a base layer and texture video is coded as an enhancement layer(s). Inter-layer motion prediction predicts motion in texture video from motion in depth map video. With more than one view in a bit stream (for multi view coding), depth map videos are considered monochromatic camera views and are predicted from each other. If joint multi-view video model coding tools are allowed, inter-view motion skip issued to predict motion vectors of texture images from depth map images. Furthermore, scalable multi-view coding is utilized, where interview prediction is applied between views in the same dependency layer, and inter-layer (motion) prediction is applied between layers in the same view.
摘要:
Disclosed are a system, apparatus, computer programs and methods for indicating proper temporal layer switching points for temporal scalable coding. Various embodiments provide an apparatus and method for properly indicating temporal layer switching points in a scalable video bit stream or in a scalable video file container. Using these indications, a decoder can determine where to perform temporal layer switching, after which all of the pictures at and below the desired temporal layer can be correctly decoded.
摘要:
In a start code based bistream structure for use in video coding, a picture header is used simultaneously with the parameter set in the start code. The picture header is present before the slice header in the same picture. As such, it is possible to allow the presence of at least one sequence parameter set or picture parameter set before the slice header. In a NAL unit parameter set bitstream structure, the picture head NAL unit is present before the slice NAL unit. In either structure, the picture header information must remain unchanged during the decoding of the entire picture, but should change more frequently between pictures as compared to the information in the picture parameter set.
摘要:
A computing device may receive multiple recordings or transmissions from one or more source devices. The recordings may include geo-tag information to relate the recordings to a specific event. The computing device may receive from a client device a request for the recordings. Responsive to the received request, the computing device may transmit the recordings to the client device. The computing device may receive from the client device an identification of which recording(s) are preferred over the course of the event, and may compile statistics related to the preferred selections over the course of the event as received from a plurality of client devices. The computing device may generate a “best-cut” recording or summary version of the event based on the most preferred recording at various points in time during the event, based on the compiled statistics.
摘要:
A method, apparatus and computer program product are provided in order to process and utilize a media presentation description that describes both a summary media presentation and an original media presentation. A method, apparatus and computer program product may permit one of more segments of the summary media presentation to be requested based upon the media presentation description. Additionally or alternatively, a method, apparatus and computer program product may permit switching between the summary media presentation and the original media presentation and/or switching between different views of the summary media presentation.