Abstract: The invention relates to a method for encapsulating multi-layer partitioned timed media data in a server, the multi-layer partitioned timed media data comprising timed samples, each timed sample being encoded into a first layer and at least one second layer, at least one timed sample comprising at least one subsample, each subsample being encoded into the first layer or the at least one second layer. The method comprises: obtaining at least one subsample from at least one of the timed samples; creating a track comprising the at least one obtained subsample; and generating a descriptive metadata associated with the created track, the descriptive metadata being organized into one main descriptive box per track, the descriptive information about the organization of the different layers being included into one or more sub-boxes, wherein at most one main descriptive box comprises the one or more sub-boxes.

Abstract: A method of encapsulating data units of at least one encoded video frame into a data stream, said data units representing frame portions of the video frame, wherein said data stream is associated with an ordering information indicating the compliance of the order of the data units with a nominal data unit decoding order. Embodiments of the invention provide flexible transmission with robust and flexible decoders.

Abstract: A method for streaming data corresponding to one or more media items or combinations of media items, said media items or combinations of media items being organized into time periods. The method includes transmitting a description file to a client device, said description file being organized into data boxes, each one being related to a time period, at least one box comprising one or more level-one sub-boxes comprising parameters related to a media item or combination of media items for the given time period, each level-one sub-box being organized into one or more level-two sub-boxes dedicated to temporal segments of the corresponding media item or combination of media items for the given time period, each level-two sub-box being organized into one or more level-three sub-boxes, each one being related to a portion of the temporal segment for the given media item or combination of media items.

Abstract: Methods of encapsulating a bitstream include generating reference information to enable image items identifying image portions of a bit-stream to be referenced to corresponding description information. The resulting encapsulated file may also include information identifying a timed portion of the data stream corresponding to a video sequence. Description information may include spatial parameters, such as position and width and height of sub-parts of an overall image, and/or display parameters such as colour display, pixel aspect ratio, and clean aperture parameters.

Abstract: The invention relates to encapsulating tiled timed media data in a server and providing a timed media data bit-stream from encapsulated tiled timed media in a client device. The tiled timed media data comprises timed samples and each timed sample comprises a plurality of spatial subsamples. After having selected at least one spatial subsample from amongst the plurality of spatial subsamples of one of the timed samples, one tile track comprising the selected spatial subsample and one corresponding spatial subsample of each of the other timed samples is created for each selected spatial subsample. One composite track comprising at least one extractor identifying at least one of the created tile tracks is created. Each created track is independently encapsulated in at least one media segment file.

Abstract: The invention relates to encapsulating tiled timed media data in a server and providing a timed media data bit-stream from encapsulated tiled timed media in a client device. The tiled timed media data comprises timed samples and each timed sample comprises a plurality of spatial subsamples. After having selected at least one spatial subsample from amongst the plurality of spatial subsamples of one of the timed samples, one tile track comprising the selected spatial subsample and one corresponding spatial subsample of each of the other timed samples is created for each selected spatial subsample. One composite track comprising at least one extractor identifying at least one of the created tile tracks is created. Each created track is independently encapsulated in at least one media segment file.

Abstract: Multi-layer partitioned timed media data comprising timed samples is encapsulated. Each timed sample is encoded into a first layer and at least one second layer, at least one timed sample comprising at least one subsample, each subsample being encoded into the first layer or the at least one second layer. The method includes obtaining at least one subsample, belonging to said first layer, from at least one of the timed samples; creating a first track comprising the at least one obtained subsample; obtaining at least another subsample, belonging to said second layer, from the same one of the timed samples; creating a second track comprising said at least another obtained subsample; and generating descriptive metadata associated with the second track.

Abstract: The invention relates to encapsulating scalable tiled timed media data comprising timed samples in a server and providing a timed media data bit-stream from encapsulated scalable tiled timed media in a client device. Each timed sample comprises a first layer and at least one second layer and at least one of the layers comprises a plurality of subsamples represented by one or more coding units. After having obtained at least one subsample from amongst the plurality of subsamples of one of the timed samples, one track comprising the at least one obtained subsample is created. Next, the created track is independently encapsulated in at least one media segment file, said media segment file comprising mapping metadata for providing information about the at least one obtained subsample relative to the one of the timed samples and the layer it belongs to.

Abstract: The invention relates to encapsulating partitioned timed media data in a server, the partitioned timed media data comprising timed samples, each timed sample comprising a plurality of subsamples. After having selected at least one subsample from amongst the plurality of subsamples of one of the timed samples, one partition track comprising the selected subsample and one corresponding subsample of each of the other timed samples is created for each selected subsample. Next, at least one dependency box is created, each dependency box being related to a partition track and comprising at least one reference to one or more of the other created partition tracks, the at least one reference representing a decoding order dependency in relation to the one or more of the other partition tracks. Each of the partition tracks is independently encapsulated in at least one media file.

Abstract: The invention relates to encapsulating partitioned timed media data to be streamed to a client's device, the partitioned timed media data comprising timed samples, each comprising a plurality of subsamples. After having grouped several of the subsamples to form at least one group so that at least part of the subsamples belongs to a group of subsamples, at least two subsamples of the same group are selected from amongst the plurality of subsamples of one of the timed samples and at least one track comprising the selected subsamples is created. Next, for the at least one created track, one sub-track box is created for each of the subsamples selected to create the at least one track, at least one of the created sub-track boxes comprising definitions and properties that are common to the selected sub-samples. Each of the created tracks is independently encapsulated in at least one media file.

Abstract: A method of encapsulating an encoded bitstream representing one or more images includes providing description of images and/or sub-image picture, providing composed picture description, and outputting the bitstream. The description of images and/or sub-image pictures identifying portions of the bitstream representing the images and/or sub-images of the one or more images is provided. The composed picture description of at least one composed picture formed by one or more images and/or sub-image pictures also is provided. The bitstream, together with the composed picture description, is output as an encapsulated data file.

Abstract: The invention relates to encapsulating tiled timed media data in a server and providing a timed media data bit-stream from encapsulated tiled timed media in a client device. The tiled timed media data comprises timed samples and each timed sample comprises a plurality of spatial subsamples. After having selected at least one spatial subsample from amongst the plurality of spatial subsamples of one of the timed samples, one tile track comprising the selected spatial subsample and one corresponding spatial subsample of each of the other timed samples is created for each selected spatial subsample. One composite track comprising at least one extractor identifying at least one of the created tile tracks is created. Each created track is independently encapsulated in at least one media segment file.

Abstract: The present invention provides a method for streaming data corresponding to a given video, each frame of the video being divided into n spatial tiles, n being an integer, in order to create n independent video sub-tracks. The method comprises: transmitting, by a server, a description file to a client device, said description file including data about the spatial organization of the n video sub-tracks and at least n URLs respectively designating each video sub-track, selecting by the client device one or more URLs according to one Region Of Interest chosen by the client device or a client device's user, receiving from the client device, by the server, one or more request messages for requesting a resulting number of video sub-tracks, each request message comprising one of the URLs selected by the client device, and transmitting to the client device, by the server, video data corresponding to the requested video sub-tracks, in response to the request messages.

Abstract: A method of encapsulating data units of at least one encoded video frame into a data stream, said data units representing frame portions of the video frame, wherein said data stream is associated with an ordering information indicating the compliance of the order of the data units with a nominal data unit decoding order. Embodiments of the invention provide flexible transmission with robust and flexible decoders.

Abstract: The invention regards a method for compressing a hierarchical tree describing a multimedia signal, said tree comprising nodes and leaves, which can be associated to contents of at least two distinct types. According to the invention, said method implements a content compression for at least some of said leaves by means of at least two compression encoding techniques, each of said techniques being selectively associated to at least one of said content types.

Abstract: A method for managing interactions between at least one peripheral command device and at least one multimedia application exploiting the standard MPEG-4. A peripheral command device delivers digital signals as a function of actions of one or more users comprising: constructing a digital sequence having the form of a BIFS node (Binary Form for Scenes in accordance with the standard MPEG-4), a node comprising at least one field defining a type and a number of interaction data to be applied to objects of a scene.