[0001]
　The present disclosure relates to an information processing apparatus and an information processing method, and more particularly to an information processing apparatus and an information processing method which make it possible to set the AdaptationSet without the Representation.
Background technique
[0002]
In recent years, the mainstream of the streaming service on the Internet has become a OTT-V (Over The Top Video). It is MPEG-DASH're beginning to spread as the basic technology - a (Moving Picture Experts Group phase Dynamic Adaptive Streaming over HTTP) (e.g., see Non-Patent Document 1).
[0003]
　In MPEG-DASH, distribution and server ready bit rates different coding stream for one moving image content, by requesting the encoded stream of optimal bit rate reproduction terminal, adaptive streaming can achieve It is.
[0004]
　Also, the MPEG-DASH SRD (Spatial Relationship Description) extension, is SRD definitions indicating the position on the screen of each region when coded independently by dividing the image of the video content to one or more regions (e.g., see non-Patent documents 2 and 3). The SRD, desired using bitrate adaptation mechanism to selectively obtain an encoded stream of bit rate, a desired region of the image of the coded stream is a Spatial adaptation to selectively obtain the ROI (Region of Interest ) it is possible to realize the function.
[0005]
　Image of the moving image content, when a mosaic image made up of video thumbnail images, such as a plurality of broadcast programs (divided images), the SRD, is considered to indicate the position on the screen of the thumbnail images.
[0006]
　However, SRD has a position on the screen of the thumbnail images, the location on the mosaic image corresponding to the encoded stream is described as being the same. Therefore, a position on the screen of the thumbnail images, when a position on the mosaic image corresponding to the coded stream are different, it is impossible to describe a position on the screen of the thumbnail image using the SRD.
[0007]
　Accordingly, reliably describe the position on the screen of the thumbnail images, it has been desired to permit recognition. Further, when the encoded stream of mosaic images of a plurality of bit rates are present, the position on the screen of the thumbnail images for each bit rate is written, because the description is redundant, it is possible to prevent it Nozomu It is rare.
CITATION
Non-Patent Document
[0008]
非特許文献1 : MPEG－DASH(Dynamic Adaptive Streaming over HTTP)（URL:http://mpeg.chiariglione.org/standards/mpeg－dash/media－presentation－description－and－segment－formats/text－isoiec－23009－12012－dam－1）
非特許文献2 : “Text of ISO/IEC 23009-1:2014 FDAM 2 Spatial Relationship Description, Generalized URL parameters and other extensions“ , N15217, MPEG111, Geneva , February 2015
非特許文献3 : “WD of ISO/IEC 23009-3 2nd edition AMD 1 DASH Implementation Guidelines”, N14629, MPEG109, Sapporo , July 2014
Summary of the Invention
Problems that the Invention is to Solve
[0009]
　By the way, such as in MPD (Media Presentation Description) file, setting the AdaptationSet that does not include the Representation has not been considered.
[0010]
　The present disclosure has been made in view of such circumstances, it is to be able to set a AdaptationSet without the Representation.
Means for Solving the Problems
[0011]
　The information processing apparatus of the first aspect of the present disclosure includes a setting unit that sets a first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, and a second AdaptationSet containing no Representation it is an information processing apparatus.
[0012]
　An information processing method of the first aspect of the present disclosure correspond to the information processing apparatus of the first aspect of the present disclosure.
[0013]
　In the first aspect of the present disclosure, a first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, and a second AdaptationSet without the Representation is set.
[0014]
　The information processing apparatus of the second aspect of the present disclosure, based the first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, and a second AdaptationSet without the Representation, the encoded an information processing apparatus including a reproducing unit for reproducing the stream.
[0015]
　In the second aspect of the present disclosure, based on the first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, and a second AdaptationSet without the Representation, the coded stream is reproduced It is.
[0016]
　The information processing apparatus of the first and second aspects can be realized by causing a computer to execute a program.
[0017]
　Further, in order to realize an information processing apparatus of the first and second side surfaces, a program to be executed by a computer, by transmitting via a transmission medium or by being recorded on a recording medium, it is possible to provide .
Effect of the invention
[0018]
　According to a first aspect of the present disclosure, it is possible to set information. According to a first aspect of the present disclosure, it is possible to set the AdaptationSet without the Representation.
[0019]
　Further, according to the second aspect of the present disclosure, it is possible to reproduce an encoded stream. According to a second aspect of the present disclosure, it is possible to reproduce the encoded stream based on AdaptationSet without the Representation.
[0020]
　Here, the advantages described in the present invention is not necessarily limited, it may be any of the effects described in the present disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021]
Is a block diagram showing a configuration example of an embodiment of an information processing system according to the [1] The present disclosure.
Is a block diagram showing a configuration example of FIG. 2 file generating apparatus of FIG.
3 is a diagram showing an example of the mosaic image.
Is a diagram illustrating an example of FIG. 4 the image file segment structure.
It is a diagram illustrating an example of FIG. 5] sgpd box and leva box.
Is a diagram showing a first example of FIG. 6] MPD file.
Is a diagram showing a second example of FIG. 7] MPD file.
8 is a diagram showing an example of a screen thumbnail images are arranged.
9 is a flowchart for explaining the file generation processing of the file generating apparatus of FIG.
It is a diagram showing a third example of FIG. 10] MPD file.
It is a diagram showing a third example of FIG. 11] MPD file.
It is a diagram showing a fourth example of FIG. 12] MPD file.
It is a diagram showing a fourth example of FIG. 13] MPD file.
It is a diagram illustrating a fifth example of FIG. 14] MPD file.
It is a diagram illustrating a fifth example of FIG. 15] MPD file.
It is a diagram illustrating a sixth example of FIG. 16] MPD file.
It is a diagram illustrating a sixth example of FIG. 17] MPD file.
It is a diagram illustrating a seventh example of FIG. 18] MPD file.
It is a diagram illustrating a seventh example of FIG. 19] MPD file.
Is [20] a block diagram showing a configuration example of a streaming playback unit video views terminal of FIG. 1 is realized.
21 is a diagram illustrating an overview of playback processing performed by the streaming reproduction of Figure 20.
Is a flowchart illustrating the playback processing of the streaming reproduction of the [22] FIG.
FIG. 23 is a block diagram showing a configuration example of hardware of a computer.
DESCRIPTION OF THE INVENTION
[0022]
　Hereinafter, embodiments of the present disclosure (hereinafter, referred to as embodiments) will be described. The description will be made in the following order.
　1. First Embodiment: Information Processing System (FIGS. 1 to
　22) 2. Second Embodiment: computer (Fig. 23)
[0023]
　
　(Configuration example of an embodiment of an information processing system)
　Fig. 1 is a block diagram showing a configuration example of an embodiment of the information processing system of the present disclosure.
[0024]
　The information processing system 210 of FIG. 1, Web server 12 and video reproducing terminal 14 to be connected to the file generation unit 211 is configured by being connected through the Internet 13.
[0025]
　In the information processing system 210, in a manner equivalent to MPEG-DASH, Web server 12, the encoded stream of the mosaic image as an image of the video content is distributed to the video playback device 14.
[0026]
　File generation device 211 of the information processing system 210 encodes the mosaic image at a plurality of encoding rate (bit rate), to generate a coded stream. File generating unit 211, for each time unit of 10 seconds from a few seconds to called segments, the encoded stream of each coding rate into a file, generates an image file. File generating apparatus 211 uploads the generated image file to the Web server 12.
[0027]
　Further, the file generation unit 211 (setting unit) generates an MPD file (management file) for managing an image file, and the like. File generation device 211, to upload the MPD file to the Web server 12.
[0028]
　Web server 12 stores the uploaded image file and MPD file from the file generation unit 211. Web server 12, in response to a request from the video reproduction device 14, and transmits the image file containing the MPD file like the video playback device 14.
[0029]
　Video playback terminal 14, software (hereinafter, the control of software) for control of the streaming data 21, video playback software 22, HTTP (HyperText Transfer Protocol) client software for access (hereinafter, software for the access that) 23 to run, and the like.
[0030]
　Control software 21 is software that controls the data to be streamed from the Web server 12. Specifically, the control software 21, to acquire the MPD file to the video reproducing terminal 14 from the Web server 12.
[0031]
　Further, the control software 21, based on the MPD file, the transmission request for playback of encoded stream specified by video playback software 22 commands the access software 23.
[0032]
　Video playback software 22 is software for reproducing the coded stream obtained from the Web server 12. Specifically, video playback software 22 designates a reproduced encoded stream to the control software 21. Also, video playback software 22, when receiving the notification of the reception start from the access software 23 decodes the received encoded stream by video reproducing terminal 14. Video playback software 22, synthesized as necessary image data obtained as the result of decoding is output.
[0033]
　Software for accessing software 23 is software that controls the communication with the Web server 12 via the Internet 13 using HTTP. Specifically, access software 23, in accordance with the instruction of the control software 21, a transmission request for playback of encoded streams included in the image file, and transmits the video playback device 14. Also, access software 23, in response to the transmission request, to start receiving the encoded stream transmitted from the Web server 12 to the video reproducing terminal 14, supplies a notification of reception start the video playback software 22 to.
[0034]
　(Configuration example of file generation device)
　FIG. 2 is a block diagram showing a configuration example of a file generation device 211 of FIG. 1.
[0035]
　File generation device 211 of FIG. 2 includes encoding unit 231, the image file generation unit 232, MPD generator 233, and the server upload processing section 234.
[0036]
　Encoding unit 231 of the file generation unit 211, a mosaic image as an image of the video content encoded in a plurality of encoding rate to generate an encoded stream. Encoding unit 231 supplies the encoded stream of each encoding rate to the image file generation unit 232.
[0037]
　The image file generation unit 232, an encoded stream of each coding rate supplied from the encoding processor 231, into a file for each segment to generate an image file. The image file generation unit 232 supplies the generated image file to the MPD generator 233.
[0038]
　MPD generator 233 determines the URL or the like of the Web server 12 that stores the image file supplied from the image file generation unit 232. Then, MPD generator 233 generates a MPD file containing the URL of the image file. MPD generator 233 supplies the generated MPD file and the image file to the server upload processing section 234.
[0039]
　Server upload processing section 234, an image file and MPD file supplied from the MPD generator 233 is uploaded to the Web server 12 of FIG.
[0040]
　(Examples of the mosaic image)
　FIG. 3 is a diagram showing an example of the mosaic image.
[0041]
　In the example of FIG. 3, the mosaic image 250, the upper left of the thumbnail image 251, the upper right of the thumbnail image 252, the lower left of the thumbnail image 252, and constituted by a thumbnail image 254 of the lower right. Resolution of the mosaic image 250 is 2k (1920 pixels × 1080 pixels), the resolution of the thumbnail images 251 to 254 are all 960 pixels × 540 pixels.
[0042]
　(Example of a segment structure of an image file of the mosaic image)
　4 is a diagram showing an example of a segment structure of an image file of the mosaic image 250 in FIG.
[0043]
　As shown in FIG. 4, the image file of the mosaic image 250, Initial segment is composed of ftyp box and moov box. The moov box is arranged stbl box and mvex box. The stbl box, etc. sgpd box is placed, the mvex box, etc. leva box is arranged.
[0044]
　Also, media segment is, SIDX box, constituted by one or more subsegment consisting ssix box, and moof the mdat pair. The sidx box, position information indicating the position of the image file of each subsegment is located. The ssix box includes positional information of each level encoded stream are arranged in mdat box.
[0045]
　subsegment is provided for each arbitrary time length. The mdat box, encoded stream are arranged together by an arbitrary time length, the moof box, management information of the coded stream are arranged.
[0046]
　(Sgpd box and examples of leva box)
　FIG. 5 is a diagram showing an example of Sgpd box and leva box in Figure 4.
[0047]
　As shown in FIG. 5, the sgpd box, Tile Region Group Entry indicating the position on the mosaic image 250 of each thumbnail image 251 through 254 constituting the mosaic image 250 is described in order.
[0048]
　In the example of FIG. 5, the head of the Tile Region Group Entry corresponds to the thumbnail image 251, a (1,0,0,960,540). Second Tile Region Group Entry corresponds to the thumbnail image 252, a (2,960,0,960,540). Third Tile Region Group Entry corresponds to the thumbnail image 253, a (3,0,540,960,540). 4 th Tile Region Group Entry corresponds to the thumbnail image 254, a (4,960,540,960,540). Tile Region Group Entry is normalized by the HEVC File Format of HEVC Tile Track.
[0049]
　Further, leva box describes the information level corresponding to each Tile Region Group Entry, the information level corresponding to the top Tile Region Group Entry in this order. This sets the level 1 on the thumbnail images 251 are set level with respect to the thumbnail images 252 to 2, is set to level 3 with respect to the thumbnail images 253, level on the thumbnail image 254 is set to 4. level from MPD file, and functions as an index to specify the portion of the encoded stream.
[0050]
　The information of each level, setting targets for the level is, Assignment_type indicating whether the encoded stream are arranged in a plurality of tracks are written. In the example of FIG. 4, the encoded stream of the mosaic image 250 is disposed on one track. Therefore, Assignment_type is, level to be set is 0 indicating that this is not the encoded stream are arranged in a plurality of tracks.
[0051]
　The information of each level also, Tile Region Group Entry of the type corresponding to that level is described. In the example of FIG. 4, as the information of each level, the type of Tile Region Group Entry described in sgpd box "trif" is described. For more information on leva box, for example, ISO / IEC 14496-12 ISO base media file format 4th edition, is described in the July 2012.
[0052]
　(First Example of MPD file)
　6 is generated by the file generation unit 211 in FIG. 1 is a diagram showing a first example of MPD file corresponding to the image file of the mosaic image 250.
[0053]
　In the example of FIG. 6, it is assumed bit rate of the encoded stream of the mosaic image is one. This is the same in FIG. 7 to be described later.
[0054]
　As shown in FIG. 6, the MPD file, "AdaptationSet" is described for each encoded stream. Further, the "AdaptationSet" is described the "Representation", the "Representation" is described a URL "stream.mp4" of the image file of encoded streams of the mosaic image 250. Further, since the coded stream of the mosaic image 250 level is set, the "Representation" includes "SubRepresentation" can be written per level.
[0055]
　Therefore, the "SubRepresentation" of level "1" is a SRD thumbnail image 251 There is described. Thus, SRD thumbnail image 251 is set in correspondence with the position of the mosaic image 250 of Tile Region Group Entry thumbnail image 251 shown corresponding to level "1".
[0056]
　In addition, the "SubRepresentation" of level "2" is an SRD of the thumbnail image 252 is a description It is. Thus, SRD thumbnail image 252 is set in correspondence with the position of the mosaic image 250 of Tile Region Group Entry thumbnail image 252 shown corresponding to level "2".
[0057]
　In addition, the "SubRepresentation" of level "3" is an SRD of the thumbnail image 253 is a description It is. Thus, SRD thumbnail image 253 is set in correspondence with the position of the mosaic image 250 of Tile Region Group Entry thumbnail image 253 showing corresponding to level "3".
[0058]
　In addition, the level "4" of "SubRepresentation" is an SRD of the thumbnail image 254 is described . Thus, SRD thumbnail image 254 is set in correspondence with the position of the mosaic image 250 of Tile Region Group Entry thumbnail image 254 showing corresponding to level "4".
[0059]
　As described above, in the MPD file of FIG. 6, the horizontal and vertical size of the mosaic image 250 indicated by the Tile Region Group Entry, horizontal and vertical size of the screen shown the SRD are identical. Also, the horizontal and vertical coordinates on the mosaic image 250 indicated by the Tile Region Group Entry for each level, is the same horizontal and vertical position on the screen indicated by the SRD corresponding to that level. Therefore, if the MPD file in FIG. 6 is produced, a screen thumbnail images 251 to 254 which are decoded on the basis of the SRD are arranged, becomes the same as the mosaic image 250.
[0060]
　Further, the "SubRepresentation" of each level, URL of moving image corresponding to the thumbnail image 251 or 254 of that level are also described. More specifically, the level "1" in the "SubRepresentation" is video URL "http://example.com/a_service/my.mpd" is described corresponding to the thumbnail image 251. Moreover, the level "2" of the "SubRepresentation" is video URL "http://example.com/b_service/my.mpd" is described corresponding to the thumbnail image 252.
[0061]
　Further, level to "SubRepresentation" "3", video URL "http://example.com/c_service/my.mpd" is described corresponding to the thumbnail image 253. Further, level to "SubRepresentation" of "4", video URL "http://example.com/d_service/my.mpd" is described corresponding to the thumbnail image 254.
[0062]
　(Second Example of MPD file)
　7 is generated by the file generation unit 211 in FIG. 1 is a diagram showing a second example of the MPD file corresponding to the image file of the mosaic image 250.
[0063]
　Incidentally, MPD file of FIG. 7 differs from the MPD of SRD although only 6 described in the "SubRepresentation" of each level.
[0064]
　That is, in the, level of "3" to "SubRepresentation" the MPD file of FIG. 7, is the SRD of the thumbnail image 253 is described.
[0065]
　In addition, the "SubRepresentation" in the level "4" is an SRD of the thumbnail image 254 is a description It is.
[0066]
　In addition, the "SubRepresentation" of level "1" is an SRD of the thumbnail image 251 is a description It is.
[0067]
　In addition, the "SubRepresentation" of level "2" is an SRD of the thumbnail image 252 is a description It is.
[0068]
　As described above, in the MPD file of FIG. 7, similarly to the MPD file of Figure 6, Tile Region Group Entry and horizontal and vertical size of the mosaic image 250 indicated by the horizontal and vertical directions of a screen showing the SRD the size of the are the same.
[0069]
　However, the horizontal and vertical coordinates on the mosaic image 250 indicated by the Tile Region Group Entry for each level, the horizontal and vertical position on the screen indicated by the SRD corresponding to that level is different. Therefore, if the MPD file in FIG. 7 is generated, a screen thumbnail images 251 to 254 which are decoded on the basis of the SRD are arranged is different from the mosaic image 250.
[0070]
　(Screen example thumbnail images are arranged)
　FIG. 8 is a diagram showing an example of a screen thumbnail images 251 to 254 which are decoded based on the SRD described in MPD file in FIG 7 is disposed.
[0071]
　SRD thumbnail image 251 described in the MPD file of FIG. 7 is a top left of the thumbnail image 251, the coordinates on the screen 270 composed of 1920 × 1080 pixels (0,540). Accordingly, as shown in FIG. 8, the thumbnail image 251 is placed at the lower left of the screen 270.
[0072]
　Further, SRD thumbnail image 252 is the coordinates on the upper left of the screen 270 the thumbnail images 252 (960,0). Accordingly, as shown in FIG. 8, the thumbnail image 252 is placed in the lower right of the screen 270.
[0073]
　Furthermore, SRD thumbnail image 253 is the upper left of the thumbnail image 253, the coordinates on the screen 270 composed of 1920 × 1080 pixels (0,0). Accordingly, as shown in FIG. 8, the thumbnail image 253 is placed at the upper left of the screen 270.
[0074]
　Further, SRD thumbnail image 254 is the coordinates on the upper left of the screen 270 the thumbnail images 254 (960,0). Accordingly, as shown in FIG. 8, the thumbnail image 254 is placed in the upper right of the screen 270.
[0075]
　As described above, the MPD file of FIG. 7, when displayed, the arrangement of the thumbnail images 251 to 254, from the arrangement in the mosaic image 250 to be coded, it is possible to change the arrangement of screen 270.
[0076]
　(Processing description file generation device)
　FIG. 9 is a flowchart for explaining the file generation processing of the file generation unit 211 in FIG. 2.
[0077]
　In step S191 of FIG. 9, the encoding processing unit 231 encodes the mosaic image as an image for the video content on a plurality of encoding rate to generate an encoded stream. Encoding unit 231 supplies the encoded stream of each encoding rate to the image file generation unit 232.
[0078]
　In step S192, the image file generation unit 232, an encoded stream of each coding rate supplied from the encoding processor 231, into a file for each segment to generate an image file. The image file generation unit 232 supplies the generated image file to the MPD generator 233.
[0079]
　In step S193, MPD generator 233 generates a MPD file containing the URL of the image file. MPD generator 233 supplies the generated MPD file and the image file to the server upload processing section 234.
[0080]
　In step S194, the server upload processing section 234, an image file and MPD file supplied from the MPD generator 233 is uploaded to the Web server 12. Then, the process is terminated.
[0081]
　In the MPD file of FIGS. 7 and 8 described above, the bit rate of the encoded stream of the mosaic image is assumed to be one, if the bit rate is more than, for each bit rate, 7 or "Representation" is described in Figure 8. That is, the MPD file, URL, etc. of the same SRD and video are set "Representation" is described by the number of bit rates, description will be redundant.
[0082]
　(Third Example of MPD file)
　10 and 11 are diagrams showing a third example of MPD file corresponding to the image file of the mosaic image 250.
[0083]
　In the example of FIGS. 10 and 11, the bit rate of the encoded stream of the mosaic image 250 is four. This also applies to the 12 to 19 will be described later.
[0084]
　The MPD file in FIG. 10 and FIG. 11, SRD and video URL of the thumbnail images 251 to 254 is set as shared information shared between the coded stream of the mosaic image 250 four bit rates.
[0085]
　Specifically, the MPD file in FIGS. 10 and 11, corresponding to the code stream of four-bit-rate the "AdaptationSet" four bit rates for sharing information between the coded stream of " AdaptationSet "(hereinafter," that AdaptationSet "for sharing) and is described.
[0086]
　As shown in FIG. 10 that corresponds to the encoded streams of the four bit rates "AdaptationSet", the "AdaptationSet" corresponds to the encoded stream of mosaic images 250 to share information is "AdaptationSet" a representative of is described. Further, "Representation" is described corresponding to the code stream of each bit rate. The "Representation", URL of the image file of the corresponding bit rate encoded stream is described.
[0087]
　In the example of FIG. 10, the "Representation" in first bit rate, URL "stream1.mp4" of the image file of encoded streams of the bit rate is described. Similarly, the "Representation" in 2 or fourth bit rates, respectively, URL "stream2.mp4" of the image file of encoded streams of the bit rate, "stream3.mp4", "stream4.mp4" is described It is.
[0088]
　As shown in FIGS. 10 and 11, for shared "AdaptationSet" is set for each thumbnail image. The "AdaptationSet" for shared indicates that this "AdaptationSet" is "AdaptationSet" for sharing corresponding to the thumbnail images is described.
[0089]
　The "AdaptationSet" for sharing information that specifies a "AdaptationSet" corresponding to the coded stream information described in "AdaptationSet" for this shared is shared (hereinafter, referred AdaptationSet specifying information), i.e. information information described in "AdaptationSet" for sharing specifies "AdaptationSet" as a segment is described.
[0090]
　In the example of FIGS. 10 and 11, the AdaptationSet particular information represents the ID "1" assigned to "AdaptationSet" corresponding to the code stream of four-bit rate described above a.
[0091]
　Furthermore, the "AdaptationSet" for shared identifies the corresponding thumbnail image information (hereinafter, referred to as thumbnail image identification information) as the information indicating the level set in the thumbnail image is described. The "AdaptationSet" for sharing the URL is acquired destination file of SRD and video corresponding thumbnail image is described.
[0092]
　Specifically, in the example of FIGS. 10 and 11, the top sharing of the "AdaptationSet", corresponding to the thumbnail image 251.
[0093]
　Accordingly, as shown in FIG. 10, the head sharing of the "AdaptationSet" indicates that level set in the thumbnail image 251 is 1 is described. In addition, a SRD corresponding to the thumbnail image 251 and , the video of the URL "http: / /example.com/a_service/my.mpd "and is described.
[0094]
　As shown in FIG. 11, the second "AdaptationSet" for sharing, indicating that level set in the thumbnail image 252 is 2 is described. In addition, a SRD of the thumbnail image 252 and , the video of the URL "http corresponding to the thumbnail image 252 : //example.com/b_service/my.mpd "and is described.
[0095]
　The third for shared "AdaptationSet" indicates that level set in the thumbnail image 253 is 3 is described. In addition, a SRD of the thumbnail image 253 and , the video of the URL "http corresponding to the thumbnail image 253 : //example.com/c_service/my.mpd "and is described.
[0096]
　4 th to "AdaptationSet" for shared indicates that level set in the thumbnail image 254 is 4 is described. In addition, a SRD of the thumbnail image 254 and , the moving image corresponding to the thumbnail image 254 URL "http: / /example.com/d_service/my.mpd "and is described.
[0097]
　As described above, in the MPD file in FIG. 10 and FIG. 11, since the SRD and video URL of the thumbnail images 251 to 254 is set as shared information, it eliminates redundancy description. Video playback terminal 14, when acquiring the MPD file in FIG. 10 and FIG. 11, the ID of the recognized that there is shared information by the "value = multiple", "value = multiple" is set "Adaptationset" to extract the shared information of shares that are described from "Adaptationset".
[0098]
　Incidentally, AdaptationSet specifying information is information for specifying the "AdaptationSet" that information described in "AdaptationSet" for sharing is originally set. Further, thumbnail image identification information is information for specifying the "SubRepresentation" that information described in "AdaptationSet" for sharing is originally set.
[0099]
　Therefore, information that is described in the "AdaptationSet" for the share is originally set, the value of the information that name to identify the element is element_name, , it is also possible to share the description method of AdaptationSet specific information and the thumbnail image identification information.
[0100]
　In this case, AdaptationSet specific information, and is described. Further, thumbnail image specifying information, to be described.
[0101]
　(Fourth example of the MPD file)
　12 and 13 are views showing a fourth example of MPD file corresponding to the image file of the mosaic image 250.
[0102]
　Configuration of MPD file in FIGS. 12 and 13 are mainly described SRD of the thumbnail images 251 to 254, rather than "AdaptationSet" for sharing, corresponding to the code stream of four-bit-rate "AdaptationSet" point being is different from the configuration of FIGS. 11 and 12.
[0103]
　Specifically, in the MPD file in FIGS. 12 and 13, as shown in FIG. 12, the "AdaptationSet" corresponding to the code stream of the four bit rates, the "Representation" all in the "AdaptationSet" "ContentComponent" is four provided describing the shared information shared between the corresponding encoded stream.
[0104]
　Each "ContentComponent" corresponds to the level set in the thumbnail image 251 to 254. Each "ContentComponent", with a corresponding SRD is described as shared information, a thumbnail image identification information is described.
[0105]
　Further, as shown in FIG. 13, the "AdaptationSet" for sharing are not provided SRD and thumbnail image specifying information, instead of AdaptationSet specific information is shared information described in "AdaptationSet" for shared that information specifying the "ContentComponent" of corresponding encoded streams "AdaptationSet" (hereinafter, referred ContentComponent specifying information) is described.
[0106]
　In the example of FIGS. 12 and 13, ContentComponent specific information described in "AdaptationSet" for sharing corresponding to the thumbnail image 251 is four bit rates corresponding to the code stream "AdaptationSet" to the ID assigned " 1 "represents a" ContentComponent "ID" srd1 "assigned to the thumbnail image identification information is described in the thumbnail image 251 .
[0107]
　Further, ContentComponent specific information described in "AdaptationSet" for sharing corresponding to the thumbnail image 252 represents an ID "srd2" assigned to "ContentComponent" thumbnail image identification information of the thumbnail image 252 is described a.
[0108]
　Furthermore, ContentComponent specific information described in "AdaptationSet" for sharing corresponding to the thumbnail image 253 represents an ID "srd3" assigned to "ContentComponent" thumbnail image identification information of the thumbnail image 253 is described a.
[0109]
　Further, ContentComponent specific information described in "AdaptationSet" for sharing corresponding to the thumbnail image 254 represents an ID "srd4" assigned to "ContentComponent" thumbnail image identification information of the thumbnail image 254 is described a.
[0110]
　As described above, in the MPD file in FIGS. 12 and 13, since the SRD and video URL of the thumbnail images 251 to 254 is set as shared information, it eliminates redundancy description.
[0111]
　Video playback terminal 14, when acquiring the MPD file in FIGS. 12 and 13, the ID of the recognized that there is shared information by the "value = multiple", "value = multiple" is set "Adaptationset" to extract the shared information of shares that are described from "Adaptationset". Further, to extract the shared information from the "ContentComponent" described in the "value = multiple" is set "Adaptationset".
[0112]
　The MPD file in FIGS. 12 and 13, video URL is for shared because they are described in "Adaptationset", SRD is not written, video URL is the MPD file described in the "Adaptationset" for shared compatibility is maintained.
[0113]
　(Fifth example of the MPD file)
　14 and 15 are diagrams showing a fifth example of the MPD file corresponding to the image file of the mosaic image 250.
[0114]
　Configuration of MPD file in FIGS. 14 and 15, mainly video URL corresponding to the thumbnail images 251 to 254, rather than "AdaptationSet" for sharing, corresponding to the code stream of four-bit-rate " that described in AdaptationSet "is different from the configuration of FIGS. 12 and 13.
[0115]
　Specifically, in the MPD file in FIGS. 14 and 15, as shown in FIG. 14, each "ContentComponent" provided "AdaptationSet" corresponding to the code stream of the four bit rates, the corresponding moving URL is described. In addition, "AdaptationSet" for the share will not be described.
[0116]
　As described above, in the MPD file in FIGS. 14 and 15, since the SRD and video URL of the thumbnail images 251 to 254 is set as shared information, it eliminates redundancy description.
[0117]
　Video playback terminal 14, when acquiring the MPD file in FIGS. 14 and 15, recognizes that there is shared information by the "value = multiple" is described "value = multiple" is set "Adaptationset" to extract the shared information from the "ContentComponent".
[0118]
　Incidentally, in the above description, a thumbnail image identification information, AdaptationSet specific information, and ContentComponent specific information has been described with reference to EssentialProperty, it may be described as element of "AdaptaionSet".
[0119]
　In this case, MPD file of FIGS. 10 and 11 will MPD file in FIGS. 16 and 17. That is, as shown in FIGS. 16 and 17, AdaptationSet specific information is described as "associationID" in "Adaptationset" for sharing, thumbnail image identification information is described as "associationLevel" in "Adaptationset" for shared that.
[0120]
　Furthermore, MPD file in FIGS. 12 and 13 will MPD file in FIG. 18 and FIG. 19. That is, as shown in FIGS. 18 and 19, of the ContentComponent specifying information, information identifying the "AdaptationSet" that information described in "AdaptationSet" corresponds to the encoding stream to be shared for sharing, the It is described as "associationID" of "Adaptationset" for shared. Also, information identifying the "ContentComponent" in "AdaptationSet" as information described corresponding to the coded stream which is shared to the "AdaptationSet" for sharing, are described as "associationLevel" in "Adaptationset" for the share that.
[0121]
　Incidentally, as an element of "Adaptationset", associationType representing the type of "Adaptationset" it may also be described. In this case, "AdaptationSet" is information or indicating that the corresponding encoded stream of the mosaic image 250 "AdaptationSet" to share information, "AdaptationSet" is "AdaptationSet" for sharing corresponding to the thumbnail images information indicating that there is, is described as associationType. For example, "AdaptationSet" is the case corresponding to the code stream of the mosaic image 250 to share information is "AdaptationSet", associationType is to "subs".
[0122]
　Also, FIG. 6 described above, in the MPD file 7, and FIGS. 10 to 19, it is assumed there is no dependency relationship among the levels in such decoding and display, if dependencies are between the levels shows the dependencies may be described. For example, if the level2 is dependent on level1, the MPD file in FIGS. 12 and 13, to correspond to the level2, ID "srd2" is assigned "ContentComponent", is described.
[0123]
　(Functional configuration example of the moving image playback device)
　FIG. 20 is a streaming reproduction is realized by executing a video reproducing terminal 14 for control software 21, video playback software 22 and access software 23, in FIG. 1 it is a block diagram showing a configuration example of a part.
[0124]
　Streaming playback unit 290 in FIG. 20, MPD acquisition unit 291, MPD processing unit 292, the image file obtaining unit 293, a decoder 294, the display control unit 295, composed of a reception unit 296 and the moving image obtaining section 297,.
[0125]
　MPD acquisition unit 291 of the streaming playback unit 290 obtains the MPD file from the Web server 12, and supplies the MPD processing unit 292.
[0126]
　MPD processor 292 extracts information such as the URL of the image file of the segment to be reproduced from the MPD file supplied from the MPD acquisition unit 291, to the image file obtaining unit 293. Also, MPD unit 292 supplies the MPD file to the moving image obtaining unit 297. Furthermore, MPD process unit 292 extracts the SRD of each divided image of the mosaic image of the segment to be reproduced from the MPD file to the display control unit 295.
[0127]
　The image file obtaining unit 293, the coded stream of the image file specified by the URL is supplied from the MPD processing unit 292, requests to the Web server 12 to acquire. The image file obtaining unit 293 supplies the obtained encoded stream to the decoder 294.
[0128]
　The decoder 294 decodes the encoded stream supplied from the image file obtaining unit 293. The decoder 294 supplies the mosaic image obtained as the result of decoding to the display control unit 295.
[0129]
　The display control unit 295 (placement portion), based on the SRD supplied from MPD processor 292, places each divided image of the mosaic image supplied from the decoder 294 on the screen. The display control unit 295 superimposes the cursor or the like on a screen arranged in each of the divided image, and supplies to the display device (not shown) for display.
[0130]
　The display control unit 295, in accordance with the enlargement instruction of a predetermined area of ​​the screen supplied from the receiving unit 296, among the screen mosaic image is placed, part mosaic composed of only the thumbnail image included in the area the size of the image, to enlarge the screen size. Then, the display control unit 295 superimposes the cursor or the like to a predetermined thumbnail image in the screen is magnified portion mosaic image is placed, and supplies the display device (not shown) for display.
[0131]
　The display control unit 295 is supplied from the video acquisition unit 297, a moving picture corresponding to one of the thumbnail images in the display, and supplied to a display device (not shown) for display.
[0132]
　Receiving unit 296 receives an instruction from a user or the like, and supplies the instruction to the video acquisition unit 297 or the display control unit 295.
[0133]
　Video acquisition unit 297, according to an instruction given position supplied from the reception unit 296, the MPD file supplied from the MPD processing unit 292 acquires the URL of the moving picture corresponding to the position. Video acquisition unit 297, based on the obtained URL, and obtains the video from the Web server 12 or the like, to the display control unit 295.
[0134]
　(Outline of reproducing processing)
　FIG. 21 is a diagram illustrating an overview of playback processing performed by the streaming reproduction section 290.
[0135]
　As shown on the left side of FIG. 21, the display control unit 295, first, of the 4 × 4 pieces of thumbnail images 311 constituting the mosaic image 310 arranged on the screen, superimposing a cursor 312 to a predetermined thumbnail image 311 and, to be displayed on the display device (not shown).
[0136]
　At this time, the user, while viewing the screen of the mosaic image 310 by the cursor 312 is superimposed, performs enlargement instruction of a desired region. In the example of FIG. 21, the user has an enlarged indication of the region of 2 × 2 pieces of thumbnail images 311 in the upper right of the screen mosaic image 310 is arranged.
[0137]
　The display control unit 295, in response to the enlargement instruction, to increase the size of the upper right of the 2 × 2 pieces of partial mosaic image 313 consisting of only the thumbnail image 311 of the screen mosaic image 310 is arranged, the screen size . Then, as shown in the middle of FIG. 21, the display control unit 295 superimposes the cursor 314 to a predetermined thumbnail image 311 in the screen portion mosaic image 313 is enlarged is placed, displayed on a display device (not shown) make.
[0138]
　At this time, the user moves the cursor 314 to the desired thumbnail image 311, by performing an operation such as a double tap, to indicate the position of the cursor 314. In the example of FIG. 21, the user has indicated the position of the upper right corner of the thumbnail image 311.
[0139]
　Video acquisition unit 297, in response to the instruction, the MPD file, the video URL corresponding to SRD indicating the position on the screen of the mosaic image 310 corresponding to the designated partial position on the mosaic image 313, is instructed to get as video URL corresponding to the position. The video acquisition unit 297, based on the obtained URL, and obtains the video 315 from the Web server 12 or the like, to the display control unit 295. Thus, as shown on the right side of FIG. 21, the display control unit 295 causes the display device (not shown) of the video 315.
[0140]
　(Video playback explanation of the processing in the terminal)
　FIG. 22 is a flowchart illustrating the playback processing of the streaming playback unit 290 of FIG. 20.
[0141]
　In step S211 of FIG. 22, MPD acquisition unit 291 of the streaming playback unit 290 obtains the MPD file from the Web server 12, and supplies the MPD processing unit 292.
[0142]
　In step S212, MPD processor 292 extracts information such as the URL of the image file in MPD file or reproduced segment supplied from the MPD acquisition unit 291, to the image file obtaining unit 293. Also, MPD unit 292 supplies the MPD file to the moving image obtaining unit 297. Furthermore, MPD process unit 292 extracts the SRD of each divided image of the mosaic image of the segment to be reproduced from the MPD file to the display control unit 295.
[0143]
　In step S213, the image file obtaining unit 293, based on the URL supplied from MPD processing unit 292, the coded stream of the image file specified by the URL, requests the Web server 12 to acquire. The image file obtaining unit 293 supplies the obtained encoded stream to the decoder 294.
[0144]
　In step S214, the decoder 294 decodes the encoded stream supplied from the image file obtaining unit 293. The decoder 294 supplies the mosaic image obtained as the result of decoding to the display control unit 295.
[0145]
　In step S215, the display control unit 295, based on the SRD from MPD processor 292, places each divided image of the mosaic image from the decoder 294 on the screen by superimposing the cursor or the like on the screen, shown unexpected is supplied to the display device, to be displayed.
[0146]
　In step S216, the reception unit 296 determines whether it has accepted the enlargement instruction of a predetermined area of ​​the screen from the user. If it is determined not to accept the enlargement instruction of a predetermined area of ​​the screen in step S216, the reception unit 296 waits until receiving the expansion instruction of a predetermined area of ​​the screen.
[0147]
　On the other hand, if it is determined that accepts the expansion instruction of a predetermined area of ​​the screen in step S216, the reception unit 296 supplies the enlargement instruction to the display control unit 295. A portion in step S217, the display control unit 295, in response to enlargement instruction supplied from the receiving unit 296, among the screen mosaic image is placed, composed of only the thumbnail image included in the enlarged indicated area the size of the mosaic image, to expand the screen size.
[0148]
　In step S218, the display control unit 295 superimposes the cursor or the like to a predetermined thumbnail image in the screen is magnified portion mosaic image is placed, and supplies the display device (not shown) for display. At this time, the user moves the cursor to a desired thumbnail image, by performing an operation such as a double tap, indicates the position of the cursor on the screen.
[0149]
　In step S219, the reception unit 296 determines whether it has received an instruction position on the screen from the user. If it is determined not to accept the instruction position on the screen in step S219, the reception unit 296 waits until receiving an instruction position on the screen.
[0150]
　On the other hand, if it is determined that receives the instruction position on the screen in step S219, the reception unit 296 supplies the instruction to the video acquisition unit 297. In step S220, moving image obtaining unit 297 in response to an instruction supplied from the reception unit 296, the MPD file supplied from the MPD processing unit 292 obtains the video URL corresponding to the designated position.
[0151]
　In step S221, video acquisition unit 297, based on the obtained URL, and obtains the video from the Web server 12 or the like, to the display control unit 295.
[0152]
　In step S222, the display control unit 295, the video supplied from the video obtaining unit 297 is supplied to a display device (not shown) for display. Then, the process is terminated.
[0153]
　In the first embodiment, partial mosaic image is displayed after the display of the mosaic image, the position of the partial mosaic image is to be instructed by the user, partial mosaic image is not displayed, on the mosaic image position may be indicated by the user directly.
[0154]
　Further, in the above description, in the MPD file, in association with the SRD of the thumbnail images, although video URL (main) corresponding to the thumbnail image is described, it is described in association with SRD each thumbnail image that information is not limited to this.
[0155]
　For example, in association with SRD each thumbnail image may be a thumbnail image as information of the image file to be superimposed is described when displaying picture-in-picture. In this case, the information of the image file to be superimposed when displaying picture-in-picture thumbnail image, for example, is It is described. source_url is information for identifying the AdaptationSet external MPD file or internal MPD file for managing image files to be superimposed on the thumbnail image.
[0156]
　Further, in association with SRD of the thumbnail images, may be information indicating the type of the thumbnail image (meaning) is described. In this case, for example, as information indicating that the image thumbnail images are displayed picture-in-picture, for example, is It is described. Thus, video playback terminal that is an image thumbnail images are displayed picture-in-picture, can be presented to the user in characters and icons.
[0157]
　Further, in association with the SRD of the thumbnail images, the moving image corresponding to the thumbnail image described above URL, the image file to be superimposed thumbnail images when displaying picture-in-picture information, and the thumbnail image type of information indicating all may be described. In this case, in correspondence with each thumbnail image, along with its thumbnail image is displayed characters and icons indicating that the image displayed picture-in-picture, picture-in-picture by a predetermined image superimposed on each thumbnail image appears, the position of the mosaic image is instructed by a user, moving image corresponding to the thumbnail image displayed at that position is reproduced.
[0158]
　The moving of the URL corresponding to the thumbnail image, information of the image file to be superimposed thumbnail images when displaying picture-in-picture, and information indicating the type of the thumbnail image, be written in a different property from the SRD it may, as a flag, may be described in property of extended SRD.
[0159]
　
　(Description of the computer according to the present disclosure)
　a series of processes described above can be executed by hardware or can be executed by software. In the case of executing the series of processes by software, a program constituting the software is installed in a computer. Here, the computer includes a computer incorporated in dedicated hardware, by installing various programs, which can execute various functions include, for example, such as a general-purpose personal computer.
[0160]
　Figure 23 is a block diagram showing a configuration example of hardware of a computer that executes the series of processes described above.
[0161]
　In the computer 900, CPU (Central Processing Unit) 901, ROM (Read Only Memory) 902, RAM (Random Access Memory) 903 are connected to each other via a bus 904.
[0162]
　The bus 904 is further input and output interface 905 is connected. Output interface 905, an input unit 906, output unit 907, storage unit 908, a communication unit 909, and a drive 910 are connected.
[0163]
　Input unit 906 includes a keyboard, a mouse, and a microphone. The output unit 907 includes a display and a speaker. Storage unit 908, a hard disk and a nonvolatile memory. The communication unit 909 includes a network interface. Drive 910 drives a magnetic disk, an optical disk, a magneto-optical disk, or a removable medium 911 such as a semiconductor memory.
[0164]
　In configured computer 900 as described above, CPU 901 is, for example, a program stored in the storage unit 908, output interface 905 and the bus 904 and executes the loaded into RAM 903, the above-described a series of processing is performed.
[0165]
　Program computer 900 (CPU 901) is executed, for example, can be provided by being recorded on the removable medium 911 as a package medium or the like. Further, the program may be provided via a local area network, the Internet, or digital satellite broadcasting, a wired or wireless transmission medium.
[0166]
　In the computer 900, programs, by loading the removable medium 911 into the drive 910, can be installed via the input output interface 905, the storage unit 908. The program via a wired or wireless transmission medium and received by the communication unit 909, can be installed in the storage unit 908. Alternatively, the program may be in the ROM902 and the storage unit 908 installed in advance.
[0167]
　The program may be a program in which processes are performed in time series in the order described herein, the necessary timing such as when parallel or call was made by the computer 900 to execute in the process it may be a program to be carried out.
[0168]
　Further, in this specification, a system includes a plurality of components (devices, modules (components) or the like) means a set of, it does not matter whether or not there is in the same housing all components. Therefore, housed in a separate enclosure, a plurality of devices connected via a network, and one device in which a plurality of modules within a single casing is housed, both of which the system .
[0169]
　Note that the effect described herein is not intended to be limited to a merely illustrative, there may be other effects.
[0170]
　Further, embodiments of the present disclosure is not intended to be limited to the embodiments described above, but various modifications are possible without departing from the scope of the present disclosure.
[0171]
　The present disclosure can also be configured as below.
[0172]
　(1)
　a first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, setting unit for setting a second AdaptationSet without the Representation
　information processing apparatus including a.
　(2)
　the setting unit, the first AdaptationSet and said second AdaptationSet to include information indicating that associated with the second AdaptationSet
　configured as
　an information processing apparatus according to (1) .
　(3)
　the setting unit, the second AdaptationSet said first AdaptationSet, set in the management file for managing files of the coded stream
　constructed as
　described in (1) or (2) the information processing apparatus.
　(4)
　wherein the encoded stream corresponding to a plurality of Representation included in the first AdaptationSet, a coded stream of a different same image bit rate,
　the setting section has a plurality of divided images forming the image the positions on the screen, the second inclusion in AdaptationSet
　configured as
　an information processing apparatus according to any one of (1) to (3).
　(5)
　The setting unit, an acquisition destination of the file corresponding to the divided image included in the second AdaptationSet
　configured as
　an information processing apparatus according to (4).
　(6)
　The setting unit, each position on the screen of the divided images, including different second AdaptationSet information
　configured as
　information processing apparatus according to (4).
　(7)
　The setting unit, an acquisition destination of the file corresponding to each divided image, included in the second AdaptationSet including a position on the screen of the divided image
　configured as
　information according to (6) processing apparatus.
　(8)
　The setting unit is configured to a second AdaptationSet, the second information specifying the divided image corresponding to AdaptationSet
　configured as
　an information processing apparatus according to (6) or (7) .
　(9)
　the setting unit, the first including the information representative of the first AdaptationSet to AdaptationSet, the second includes information representing the second AdaptationSet to AdaptationSet
　configured to
　(1) through the information processing apparatus according to any one of (8).
　(10)
　said encoded stream corresponding to a plurality of Representation included in the first AdaptationSet, a coded stream of a different same image bit rate,
　the setting section has a plurality of divided images forming the image the positions on the screen, including the first AdaptationSet as information Content Component
　configured as
　an information processing apparatus according to any one of (1) to (3).
　(11)
　the setting unit, the divided image acquisition destination of the file corresponding to the inclusion in the first AdaptationSet as the information of the Content Component
　configured as
　an information processing apparatus according to (10).
　(12)
　The information processing apparatus,
　setting step of setting a first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, and a second AdaptationSet without the Representation
　information processing method comprising.
　(13)
　a first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, based on the second AdaptationSet without the Representation, reproduction unit for reproducing the coded stream
　information comprising a apparatus.
　(14)
　The information processing apparatus,
　based on a first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, and a second AdaptationSet without the Representation, reproduction for reproducing the coded stream step
　information processing method, including.

[Claim 1]
　Setting unit for setting a first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, and a second AdaptationSet without the Representation
　information processing apparatus including a.
[Claim 2]
　The setting unit may include information indicating that the first AdaptationSet and said second AdaptationSet related to the second AdaptationSet
　configured as
　an information processing apparatus according to claim 1.
[Claim 3]
　The setting unit, the first AdaptationSet and the second AdaptationSet, set in the management file for managing files of said coded stream
　which is configured as
　an information processing apparatus according to claim 1.
[Claim 4]
　Wherein the coded stream corresponding to a plurality of Representation included in the first AdaptationSet, a coded stream of a different same image bit rate,
　the setting section has a plurality of divided images each screen constituting the image the position of the upper, including the second AdaptationSet
　configured as
　an information processing apparatus according to claim 1.
[Claim 5]
　The setting unit, an acquisition destination of the file corresponding to the divided image included in the second AdaptationSet
　configured as
　an information processing apparatus according to claim 4.
[Claim 6]
　The setting unit, a position on the screen of each divided image, included in different second AdaptationSet information
　configured as
　an information processing apparatus according to claim 4.
[Claim 7]
　The setting unit, an acquisition destination of the file corresponding to each divided image, included in the second AdaptationSet including a position on the screen of the divided images
　is configured as
　an information processing apparatus according to claim 6.
[8.]
　The setting unit is configured to a second AdaptationSet, information specifying the divided image corresponding to the second AdaptationSet
　configured as
　an information processing apparatus according to claim 6.
[Claim 9]
　The setting unit is configured including the information representative of the first AdaptationSet the first AdaptationSet, include information indicating the second AdaptationSet the second AdaptationSet
　configured as
　information according to claim 1 processing apparatus.
[Claim 10]
　Wherein the coded stream corresponding to a plurality of Representation included in the first AdaptationSet, a coded stream of a different same image bit rate,
　the setting section has a plurality of divided images each screen constituting the image the position of the upper, including the first AdaptationSet as information Content Component
　configured as
　an information processing apparatus according to claim 1.
[Claim 11]
　The setting unit, an acquisition destination of the file corresponding to the divided image included in the first AdaptationSet as the information of the Content Component
　configured as
　an information processing apparatus according to claim 10.
[Claim 12]
　The information processing apparatus,
　setting step of setting a first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, and a second AdaptationSet without the Representation
　information processing method comprising.
[Claim 13]
　A first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, based on the second AdaptationSet without the Representation, reproduction unit for reproducing the coded stream
　information processing apparatus including a.
[Claim 14]
　The information processing apparatus,
　the regeneration step in which the first AdaptationSet including a plurality of Representation corresponding to the code stream of the predetermined bit rate, based on the second AdaptationSet without the Representation, to reproduce the coded stream
　including information processing method.