Canon Kabushiki Kaisha

Frédéric Maze

Franck Denoual

Naël Ouedraogo

Jean Le Feuvre

Cyril Concolato

Jonathan Taquet

Hervé Le Floch

Hervé Ruellan

Eric Nassor

Youenn Fablet

Romain Bellessort

Pascal Viger

Masahiko Takaku

Xavier Henocq

Yuki Fujimori

Lionel Tocze

Ioana Donescu

Tomoya Sakai

Philippe Boucachard

At least one embodiment of a method for encapsulating media data as fragments, each fragment comprising metadata and media data, the metadata describing encapsulation of the media data. After having obtained second media data to be encapsulated within a second fragment and second metadata describing encapsulation of the second media data, it is determined whether some of the second metadata are identical to some of first metadata belonging to a first fragment and describing encapsulation of first media data within the first fragment. If it is the case and if the second fragment is not to be parsed independently, the second media data and a portion of the second metadata are encapsulated within the second fragment, the second fragment further comprising an indication to signal that the metadata part of the second fragment comprises only a portion of the metadata required to parse the media data of the second fragment.

Method and apparatus for optimizing media content data encapsualtion in low latency applications

A method of encapsulating media data into a media file, the method comprising: obtaining a time boundary in a time interval corresponding to the presentation duration of an original sample of the media data; duplicating the original sample into two consecutive duplicated samples separated by the time boundary, the two duplicated samples having a same data part corresponding to the data part of the original sample; generating a time adjustment indication indicating for each duplicated sample the relationship between the time interval corresponding to the presentation duration of the duplicated sample and the time interval corresponding to the presentation duration of the original sample; and encapsulating the media data comprising the duplicated samples and the time adjustment indication in the media file, the time adjustment indication being located in metadata describing the media data.

Method and apparatus for encapsulation of media data in a media file

A method of encapsulating a bitstream of encoded video data in a media file, the method comprising: obtaining the bitstream comprising a second plurality of operating points, video data in the bitstream being organized into NAL units; the bitstream being filtered from an original bitstream, the original bitstream comprising a first plurality of operating points, the first plurality of operating points comprising at least the second plurality of operating points; obtaining from the bitstream a first NAL unit describing the first plurality of operating points; obtaining form the bitstream a second NAL unit describing the second plurality of operating points; generating the media file comprising the bitstream and comprising at least one metadata structure describing the second plurality of operating points; wherein the at least one metadata structure is generated based on both the first and second NAL units.

Method and apparatus for encapsulating video data into a file

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:

Method and apparatus for encoding or decoding video data with frame portions

A method of generating a media file, the method comprising: generating a first track of media data samples; generating at least one annotated region, the annotated region being associated with a geometry of the annotated region, the annotated region being associated with at least one region annotation describing the annotated region; wherein the annotated region is associated with the first track of media data samples; and generating a media file including the first track and the at least one annotated region, associated geometry and associated region annotation.

Method and apparatus for encapsulating annotated region in ISOBMFF tracks

The present invention concerns a method of encapsulating subpicture bitstreams in at least one media file, the subpicture bitstreams corresponding to encoded media data of a subpicture corresponding to a rectangular region of video data, the method comprising: obtaining the plurality of subpicture bitstreams; encapsulating each subpicture bitstream in a subpicture track; generating at least one base track referencing at least two subpicture tracks and forming a spatial arrangement of the at least two subpicture tracks; generating information describing APS referenced by samples of the at least two subpicture tracks; encapsulating the subpicture tracks, the at least one base track and the information describing APS in the at least one media file.

Method and apparatus for encapsulating encoded media data in a media file

A method for encapsulating a video bit-stream in a server, including obtaining at least one network abstraction layer unit (NAL unit) of a first picture, buffering the at least one obtained NAL unit, obtaining at least one NAL unit of a second picture, the second picture being a random access picture following the first picture, and encapsulating the at least one obtained NAL unit of the second picture and the at least one buffered NAL unit in an encapsulation structure making it possible to generate a video bit-stream without processing the encapsulated at least one buffered NAL unit when processing the encapsulated video bit-stream.

Method, device, and computer program for improving random picture access in video streaming

A method for encapsulating encoded media data corresponding to a wide view of a scene, the method comprising: obtaining a projected picture from the wide view of the scene; splitting the projected picture into at least one sub-picture; encoding the at least one sub-picture into a plurality of tracks; generating descriptive metadata associated with the encoded tracks, the descriptive metadata comprise a first information associated with each track being indicative of a spatial relationship between the at least one sub-picture encoded in the track and a reference picture; wherein the descriptive metadata further comprises a second information indicating the reference picture.

Method, device, and computer program for transmitting media content

According to embodiments, the invention provides a method for encapsulating partitioned timed media data comprising timed samples, comprising in turn subsamples, the timed samples being grouped into groups, the method comprising: obtaining spatial tracks, each spatial track comprising at least one subsample of a first timed sample and one corresponding subsample of the other timed samples, the corresponding subsamples being located at the same spatial position in its own timed sample as the at least one subsample; creating a base track referencing at least some of the spatial tracks, the base track comprising reconstruction instructions, each of the reconstruction instructions being associated with a group of timed samples, enabling generating a portion of a bit-stream from subsamples of spatial tracks, that belong to a same group of timed samples; and independently encapsulating each of the tracks in a least one media file.

Method, device, and computer program for improving encapsulation of media content

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.

Method, device, and computer program for encapsulating partitioned timed media data

The present invention concerns a method of encapsulating images in a file, wherein the method comprises determining a grouping type based on a capture mode of the images; generating a grouping data structure describing the images as a group, the grouping data structure comprising image identifiers of the images of the group; and embedding the grouping data structure, the grouping type and the images in the file.

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Langan, France

Frédéric Maze