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: A method of encapsulating image data in a media file, the image data being related to a main image to be generated based on a plurality of sub-images, wherein the method comprises: obtaining the plurality of sub-images, each sub-image being provided in at least one version; generating descriptive metadata for describing the main image and the plurality of sub-images; encapsulating the plurality of sub-images and the descriptive metadata in the media file; wherein the method further comprises: generating a progressive information defining a set of consecutive progressive steps for generating a version of the main image, each progressive step being associated with a set of sub-images versions required to generate the version of the main image; and embedding the progressive information in the descriptive metadata.

Abstract: The present invention concerns a method of encoding video data comprising frames into a bitstream, frames being spatially divided into frame portions, the method comprising: encoding at least one frame portion into one or more first encoded units; wherein the method further comprises: signalling into said first encoded units, at least one frame portion identifier, a frame portion identifier identifying one encoded frame portion; and providing frame portion arrangement information comprising the frame portion identifier and spatial information about the frame portion.

Abstract: The present invention concerns a method of encoding video data comprising frames into a bitstream, frames being spatially divided into frame portions, the method comprising: encoding at least one frame portion into one or more first encoded units; wherein the method further comprises: signalling into said first encoded units, at least one frame portion identifier, a frame portion identifier identifying one encoded frame portion; and providing frame portion arrangement information comprising the frame portion identifier and spatial information about the frame portion.

Abstract: The present invention concerns a method of encoding video data comprising frames into a bitstream, frames being spatially divided into frame portions, the method comprising: encoding at least one frame portion into one or more first encoded units; wherein the method further comprises: signalling into said first encoded units, at least one frame portion identifier, a frame portion identifier identifying one encoded frame portion; and providing frame portion arrangement information comprising the frame portion identifier and spatial information about the frame portion.

Abstract: The present invention concerns a method of encoding video data comprising frames into a bitstream, frames being spatially divided into frame portions, the method comprising: encoding at least one frame portion into one or more first encoded units; wherein the method further comprises: signalling into said first encoded units, at least one frame portion identifier, a frame portion identifier identifying one encoded frame portion; and providing frame portion arrangement information comprising the frame portion identifier and spatial information about the frame portion.

Abstract: The present invention concerns a method of encapsulating one or more uncompressed images in a media file, wherein the method comprises: generating generic description information describing the images and indicating that the images are uncompressed; and encapsulating the generic description information and the one or more images in the media file, the uncompressed images being encapsulated as one or more image items, the generic description information being encapsulated in a metadata part of the media file describing the image items.

Abstract: A method for encapsulating encoded timed media data into at least a first and a second track belonging to one same group of tracks, said media data corresponding to one or more video sequences made up of full frames. The method includes for at least first or second track providing descriptive information about the spatial relationship of a first spatial part of one frame encapsulated in the first track. A second spatial part of said frame encapsulated in the second track, wherein said descriptive information, shared by the tracks belonging to a same group of tracks, indicates whether the region, covered by both the first and the second spatial parts, forms a full frame or not.

Abstract: The invention relates to a method of generating a media file, the method comprising: generating a first data structure assigning a subset of samples or subsamples of a track to one or more sample groups; generating a second data structure comprising data for describing each of the one or more sample groups, the first data structure comprising a first grouping type and the second data structure comprising a second grouping type, wherein the second data structure comprises data for indicating whether the data for describing each of the one or more sample groups is invariant along time or not; and generating a media file including the samples, and the first and second data structures

Abstract: The present invention concerns a method of encoding video data comprising frames into a bitstream, frames being spatially divided into frame portions, the method comprising: encoding at least one frame portion into one or more first encoded units; wherein the method further comprises: signalling into said first encoded units, at least one frame portion identifier, a frame portion identifier identifying one encoded frame portion; and providing frame portion arrangement information comprising the frame portion identifier and spatial information about the frame portion.

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 present invention concerns method of generating a file of image data comprising samples, wherein the method comprises: generating a derived track comprising a derived track configuration data structure and derived samples, the derived track comprising a sequence of derivation operations to be applied on input data, each derivation operation comprising a list of references to input tracks and/or input items; wherein the derived track comprises an information indicating that one input track of a derivation operation is the output of the previous derivation operation in the sequence; and, generating the file comprising the derived track, and the input tracks and/or input items.

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: A method of encapsulation media data in a file, wherein the method comprises: encoding a set of reference images; generating a set of image items to describe the set of reference images; generating an image item describing a derived image corresponding to a panorama based on the set of reference images; generating an association information that associates the image item describing the derived image with the set of image items; generating a parameter data structure containing parameters of the panorama, the parameter data structure being associated with the image item describing the derived image; and embedding the set of image items, the image item describing the derived image, and the association information in the file.

Abstract: A method for encapsulating media data, the media data comprising metadata and data associated with the metadata, the metadata being descriptive of the associated data, the media data comprising a plurality of segments, at least one segment comprising a plurality of sub-segments. For a plurality of byte ranges of at least one of the sub-segments, associating one level value with each byte range within metadata descriptive of partial sub-segments of the at least one of the sub-segments, wherein the metadata descriptive of partial sub-segments of the at least one of the sub-segments further comprise a feature type value representative of features associated with level values.

Abstract: The present invention concerns a method of generating a media file, the method comprising: generating a first track of media data samples; generating a region track associated with the first track, each sample of the region track comprising a region description data structure comprising geometry information of one or more regions in at least one corresponding sample of the first track; wherein the region description data structure comprises a region identifier associated with each region; and the method further comprise: generating a region annotation in a container; generating association metadata associating a region identifier with the region annotation; generating a media file including the first track, the region track, the region annotation, and the association metadata.

Abstract: There are provided a device and a method for generating timed media data, the timed media data comprising samples, the method comprising: obtaining samples of the time media data; creating tracks each comprising at least one of the obtained samples; and generating a presentation file comprising descriptive metadata associated with the created tracks, wherein the descriptive metadata comprise at least one track group box describing at least one group of created tracks, all the tracks belonging to a same group sharing properties, wherein a list of existing groups of tracks is declared in one single location in the presentation file, and wherein the properties shared by the tracks of a group of the list are declared at the same single location in the presentation file.

Abstract: According to embodiments, the invention provides a method for transmitting encapsulated media data from a server to a client, the media data being requested by the client, the method being carried out by the server and comprising: —identifying at least one byte-range of the encapsulated media data to be transmitted, the at least one byte-range representing a portion of the encapsulated media data; —obtaining a processing level of the at least one identified byte-range, the processing level being indicative of the role of data contained in the at least one identified byte-range for processing the encapsulated media data; and—sending the at least one identified byte-range and an item of information determined as a function of the obtained processing level to the client.

Abstract: A method of encapsulating entities in a file, wherein the method comprises for at least one entity: generating a grouping data structure associated with at least one of the entities, and indicating that the at least one of the entities belong to a same group; encapsulating the grouping data structure and the entities in the file; wherein the grouping data structure is a proprietary grouping data structure comprising an universally unique identifier identifying the type of the proprietary grouping.

Abstract: A method for encapsulating encoded timed media data into at least a first and a second track belonging to one same group of tracks, said media data corresponding to one or more video sequences made up of full frames. The method includes for at least first or second track providing descriptive information about the spatial relationship of a first spatial part of one frame encapsulated in the first track. A second spatial part of said frame encapsulated in the second track, wherein said descriptive information, shared by the tracks belonging to a same group of tracks, indicates whether the region, covered by both the first and the second spatial parts, forms a full frame or not.