Canon Kabushiki Kaisha

Frédéric Maze

Franck Denoual

Jean Le Feuvre

Naël Ouedraogo

Cyril Concolato

Jonathan Taquet

Hervé Le Floch

Eric Nassor

Hervé Ruellan

Pascal Viger

Youenn Fablet

Romain Bellessort

Masahiko Takaku

Ioana Donescu

Xavier Henocq

Yuki Fujimori

Lionel Tocze

Tomoya Sakai

Masanori Fukada

Philippe Boucachard

A method for encapsulating media data into an ISO Base Media File Format (ISOBMFF) standard compliant file, the media data comprising a sequence of samples, including obtaining at least one sample of the sequence, generating ISOBMFF structure data indexing the at least one obtained sample, compressing the at least one obtained sample, and embedding the generated ISOBMFF structure data and the compressed at least one sample within the ISOBMFF compliant file.

Methods and devices for improving storage and transmission of uncompressed data while using a standard format

The invention relates to providing default constructors to be used by reference in extractors of an extractor tracks in order to reduce the size of the extractor track when a same constructor is used in different extractors.

Method, device, and computer program for encapsulating media data into a media file

There is provided a method of encapsulating an encoded bitstream representing one or more images, the encapsulated bitstream comprising a data part and a metadata part. The method comprises:

Image data encapsulation

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 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.

Description of image composition with HEVC still image file format

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.

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Langan, France

Frédéric Maze