摘要:
A method, apparatus and computer program product are provided that permit values of certain parameters or syntax elements, such as the HRD parameters and/or a level indicator, to be taken from a syntax structure, such as a sequence parameterset. In this regard, values of certain parameters or syntax elements, such as the HRD parameters and/or a level indicator, may be taken from a syntax structure of a certain other layer, such as the highest layer, present in an access unit, coded video sequence and/or bitstream even if the other layer, such as the highest layer, were not decoded. The syntax element values from the other layer, such as the highest layer, may be semantically valid and may be used for conformance checking, while the values of the respective syntax elements from other respective syntax structures, such as sequence parameter sets, may be active or valid otherwise.
摘要:
Various methods are described for enabling efficient pre-fetching of media in a DASH system. One example method may comprise accessing information related to a media presentation description (MPD) (900). The information comprising information related to one or more segments of the MPD. The method of this example embodiment may further comprise generating a request for a segment of the MPD (910). Furthermore, the method of this example embodiment may comprise generating a request for pre-fetching one or more segments different from the requested segment (920). The method of this example embodiment may further comprise providing for transmission of the request for the segment and the request for pre-fetching the one or more different segments to a proxy cache server (930). Similar and related example methods, example apparatuses, and example computer program products are also provided.
摘要:
Various methods are described for selecting an access method for flexible caching in DASH. One example method may comprise causing a request for at least one of a primary representation for a segment and one or multiple alternative representations for the segment to be transmitted to a caching proxy. The method of this example embodiment may further comprise causing the caching proxy to respond with at least one of the primary representation or the alternative representation based on the caching status at a caching proxy. In some example embodiments, the caching proxy is configured to determine whether the request enables an alternative representation to be included in a response. Furthermore, the method of this example embodiment may comprise receiving at least one of the primary representation or the alternative representation for the segment from the caching proxy. Similar and related example methods, example apparatuses, and example computer program products are also provided.
摘要:
There is disclosed a method, an apparatus, a server, a client and a non-transitory computer readable medium comprising a computer program stored therein for motion compensated video coding and decoding. Texture block motion information is used to derive disparity/depth motion information. Alternatively, disparity/depth motion information is used to derive texture block motion information.
摘要:
An apparatus comprising: a camera module configured to capture a first image of a subject with a first image capture parameter and at least one further image of substantially the same subject with at least one associated further image capture parameter; a reference image encoder configured to encode the first image into a first encoded image; a further image encoder configured to encode the at least one further image into at least one further encoded image; and a file compiler configured to combine the first encoding image and the at least one further encoded image into a first file.
摘要:
An apparatus comprising a controller configured to divide a section of an encoded multimedia signal into at least two segments depending on a time based decoding criteria; a generator configured to determine an error correction code for each of the at least two time segments; and a distributor configured to associate the error correction code for each of the at least two time segments with the section of the encoded multimedia signal and with a section of at least one further encoded multimedia signal.
摘要:
Methods, devices, computer program products and systems for transmitting and receiving media information are disclosed. The media information is protected against errors introduce by an unreliable channel by error-protection information. The error-protection information is generated, transmitter, received and/or used in rendering based on the context of the receiver, e.g. based on a geographical location of the receiver.