Abstract: The present disclosure relates to an information processing apparatus and an information processing method that enable recognition of performance required for decoding more accurately. A file of an MP4 file format, in which information for grouping a plurality of partial images which can be independently decoded in a whole image is stored in moov and the encoded partial images are stored in mdat, is generated, and the generated file is stored. The present disclosure can be applied to, for example, an information processing apparatus such as an image encoding apparatus or an image decoding apparatus.

Abstract: The present technology relates to an information processing device and a method capable of adaptively providing a partial image of an image in each layer of an image constituted by a plurality of layers. The information processing device of the present technology generates a file that stores information on a whole of a base layer of encoded data produced by layer encoding of image data, information on each of partial areas of an image of the base layer, information on a whole of an enhancement layer of the encoded data, and information on each of partial areas of an image of the enhancement layer such that each of the information is stored in corresponding one of tracks different from each other. The present technology is applicable to an information processing device, an image processing device, an image encoding device, or an image decoding device, for example.

Abstract: There is provided a generation device, an identification information generation method, a reproduction device, and an image reproduction method capable of identifying a packing scheme. Stereo packing identification information for identifying a scheme of packing is generated with regard to a plurality of region images of a celestial sphere image packed in a packed frame. In a case in which packing is performed by one of a plurality of packing schemes, stereo packing identification information indicating a packing method can be generated, a projected frame can be generated easily on the basis of the identification information, and the projected frame can be rendered. The present technology can be applied to a case in which a celestial sphere stereoscopic image is transmitted to be reproduced on a reception side.

Abstract: There is provided a decoding device comprising at least one buffer and at least one processor. The at least one processor is configured to select, based at least in part on a size of the at least one buffer, at least one audio element from among multiple audio elements in an input bit stream; and generate an audio signal by decoding the at least one audio element.

Abstract: There is provided an image processing apparatus and method, a file generation apparatus and method, and a program that enable a suitable occlusion image to be obtained. The image processing apparatus includes an MPD file processing unit configured to select an occlusion image to be acquired, on the basis of information regarding a viewpoint position of the occlusion image included in an MPD file, from among a plurality of the occlusion images indicated by the MPD file. The present technology can be applied to a client device.

Abstract: The present disclosure relates to a content processing apparatus, a content processing method, and a program that are capable of suitably editing content to be distributed. An online editing unit stores content data for live distribution in an editing buffer, corrects, if the content data includes a problem part, the content data within the editing buffer, replaces the content data with the corrected content data, and distributes the corrected content data. An offline editing unit reads the content data from a saving unit and edits the content data on a plurality of editing levels. The present technology is applicable to, for example, a distribution system that distributes content by MPEG-DASH.

Abstract: The present technology relates a reproduction apparatus, a reproduction method, an information processing apparatus, an information processing method, and a program which can realize reproduction of highly flexible audio data while reflecting the intention of a content creator. A reproduction apparatus according to one aspect of the present technology acquires content including audio data of each of audio objects and rendering parameters of the audio data for each of a plurality of presumed listening positions, renders the audio data on the basis of the rendering parameters for a selected predetermined presumed listening position, and outputs an audio signal. The present technology can be applied to an apparatus that can reproduce object-based audio data.

Abstract: The present disclosure relates to an information processing device and information processing method capable of recognizing an acquisition position of voice data on an image. A web server transmits image frame size information indicating image frame size of image data and audio position information indicating acquisition position of voice data. The present disclosure is applicable to an information processing system or other like system including file generation device, web server, and video playback terminal to perform tiled streaming using a manner compliant with moving picture experts group phase-dynamic adaptive streaming over HTTP (MPEG-DASH).

Abstract: The present technology relates to an information processing apparatus and an information processing method that enable construction of preference information of many users without special communication. In an information processing apparatus for managing content to be delivered to a plurality of other information processing apparatuses via a network, content information of content delivered in response to a request to a plurality of the other information processing apparatuses is acquired by an acquisition unit, and interest information of a plurality of the other information processing apparatuses is constructed by a construction unit on the basis of the acquired content information. The present technology is applicable to, in one example, a delivery system that delivers content from a server to terminal device via a network.

Abstract: There is provided an information processing device and method that enable seamless reproduction of streams at different frame rates. A frame rate reduction processing unit generates images at a plurality of different low frame rates from an input image. A single frame rate conversion unit converts the images at the plurality of different low frame rates, which are generated by the frame rate reduction processing unit, to images at a single frame rate. A compression encoding unit encodes the images at the single frame rate obtained through conversion by the single frame rate conversion unit. The present disclosure is applicable to a distribution system including a file generation device, a distribution server, and a reproduction terminal, for example.

Abstract: The present disclosure relates to an information processing apparatus and an information processing method that are capable of reproducing content on the basis of an edit list in the case where the reproduction start time of content contained in a file in the MP4 Fragmented Movie format is later than the reproduction start time in a movie time scale. An edit list generation unit registers a top position of content as a reproduction start position of the content and a predetermined value as a reproduction time duration of the content in an edit list when a reproduction start time of the content is later than a reproduction start time of the content on a movie time scale, the edit list associating the reproduction start position of the content with the reproduction time duration of the content reproduced from the reproduction start position. The present disclosure is applicable to a file generation apparatus that generates a Fragmented MP4 file, for example.

Abstract: There is provided a generation device, an identification information generation method, a reproduction device, and an image generation method capable of easily acquiring a region with a margin and a region with no margin. An identification information generation unit generates margin identification information for identifying that a celestial sphere image includes a region with a margin. A client that uses a margin can easily acquire a region including the margin and a client that does not use a margin can easily acquire a region including no margin. The present technology can be applied to a case in which a celestial sphere image is transmitted from a server and is received and reproduced on a client side.

Abstract: A recording apparatus, a reproduction apparatus and a file management method are disclosed wherein, even if one of files recorded on a recording medium cannot be reproduced regularly, another file selected by the user can be reproduced normally. A file having a hierarchical structure formed from video data and audio data both in the form of compressed data together with information necessary for processing of the video data and audio data is produced and recorded on a predetermined recording medium. Upon production of the file, information regarding decoding of the video data and audio data is disposed collectively on the top side of the file.

Abstract: The present disclosure relates to an information processing apparatus and an information processing method that enable recognition of performance required for decoding more accurately. A file of an MP4 file format, in which information indicating a location of a partial image in a whole image is stored in moov, the partial image being able to be independently decoded in the whole image, and the encoded partial image is stored in mdat, is generated, and the generated file is stored. The present disclosure can be applied to, for example, an information processing apparatus such as an image encoding apparatus or an image decoding apparatus.

Abstract: The present disclosure relates to an information processing apparatus and an information processing method which are capable of improving an efficiency of acquiring a predetermined type of audio data among a plurality of types of audio data. Audio data of a predetermined track is acquired in one audio file in which audio data of 3D audio is divided into a plurality of tracks depending on the type of 3D audio and the tracks are arranged, the audio data of each track being successively arranged in the file for a predetermined length of time. The present disclosure is applicable to, for example, an information processing system including a file generation device that generates a file, a Web server that records a file generated by the file generation device, and a video playback terminal that plays back a file.

Abstract: There is provided an information processing apparatus and an information processing method which are capable of reliably recognizing the position on a screen of an image made up of a plurality of divided images or the positions on the screen of divided images compatible with encoded streams. A position protruding out of a screen is set as the position on the screen of an end image that is made up of a left end image and a right end image compatible with encoded streams. The present disclosure is applicable to a file generating apparatus, etc. of an information processing system that distributes encoded streams of an entire celestial sphere image as an image of a moving-image content to a moving-image playback terminal according to a process equivalent to MPEG-DASH, for example.

Abstract: The present disclosure relates to an information processing apparatus and an information processing method that enable recognition of performance required for decoding more accurately. A file of an MP4 file format, in which information specifying a plurality of NAL units corresponding to a partial image which can be independently decoded in a whole image is stored in moov and the encoded partial image is stored in mdat, is generated, and the generated file is transmitted. The present disclosure can be applied to, for example, an information processing apparatus such as an image encoding apparatus or an image decoding apparatus.

Abstract: The present disclosure relates to a file generation device, a file generation method, a reproducing device, and a reproducing method capable of identifying images used for generating an omnidirectional image. An MPD file generation section sets identification information for identifying captured images used for generating an omnidirectional image generated by mapping the captured images onto a 3D model. The present disclosure is applicable to a file generation device or the like generating segment files of an omnidirectional image delivered using, for example, MPEG-DASH (Moving Picture Experts Group phase-Dynamic Adaptive Streaming over HTTP).

Abstract: The present disclosure relates to an information processing device and method for adaptively supplying data of partial images. The information processing device includes: a partial image information generation unit configured to generate partial image information which is information regarding each partial image which is a part of an entire image; and a metadata generation unit configured to generate metadata to be used for supply of a bit stream of the entire image and supply of a bit stream of the partial image using the partial image information generated by the partial image information generation unit. For example, the present disclosure can be applied to an information processing device that performs a process for adaptively supplying image data.

Abstract: There is provided an information processing apparatus and an information processing method which are capable of reliably recognizing the position on a screen of an image made up of a plurality of divided images or the positions on the screen of divided images compatible with encoded streams. A position protruding out of a screen is set as the position on the screen of an end image that is made up of a left end image and a right end image compatible with encoded streams. The present disclosure is applicable to a file generating apparatus, etc. of an information processing system that distributes encoded streams of an entire celestial sphere image as an image of a moving-image content to a moving-image playback terminal according to a process equivalent to MPEG-DASH, for example.