Abstract: It is possible to display a caption with an aspect ratio independent from the aspect ratio of a main video. When a flag indicating that the aspect ratio of the caption is 16:9 is set, the caption video image frame size (720×480) is converted so as to match the aspect ratio of 16:9 and the caption video obtained as the result is superimposed on the main video and displayed. That is, when the main video has an aspect ratio of 4:3, as shown in FIG. 19, reduction in the lateral direction is performed and the main video is displayed with addition of black tone at the right and left but the caption video is displayed with the aspect ratio of 16:9.

Abstract: To facilitate implementing a user operation control in a picture reproducing apparatus for reproducing contents recorded on a disk or the like. A picture reproducing apparatus selects and reproduces a plurality of prerecorded picture streams in the disk. A reproduction control unit is configured to reproduce the picture streams in either of two reproduction modes, i.e., a normal mode for accepting particular key inputs pertaining to picture reproduction and a menu mode for not accepting the particular key inputs. The mode in which the picture streams are reproduced may be written by contents creators in a script file which is recorded on the disk.

Abstract: Disclosed is a demultiplexer for demultiplexing a multiplexed stream, obtained on time division multiplexing a plurality of elementary streams. A buffer controller, forming this demultiplexer, writes a multiplexed stream, beginning from a location specified by a data write pointer of a ring buffer, configured for storing data of the multiplexed stream, in the manner of an endless loop. On receipt of an ES1 readout request, an ES1 readout control unit takes out, from an ES1 readout pointer storage unit, a readout pointer, as a start point of retrieving an area in the ring buffer where the oldest ES1 is stored. The ES1 readout control unit then retrieves and reads out the ES1, with a location specified by the ES1 readout pointer, as a start point, and sends the ES1, thus read out, to the source of the request. The ES1 readout control unit then updates the ES1 readout pointer and the data leading end pointer.

Abstract: The present invention relates to a data processing apparatus, a data processing method, a program, a program recording medium, a data recording medium, and a data structure that enable reading of coded video data in access units without analyzing the coded video data. In step S211, a private_stream—2 packet is searched for, which is used for decoding coded video data, and which is located immediately prior to each of one or more decode startable points in coded video data in the access units. In addition, in step S216, based on an AU_length which is included in the private_stream—2 packet, and which represents the size of each of access units located from the private_stream—2 packet to the next private_stream—2 packet, the coded video data is read in the access units. The present invention can be applied to, for example, game machine using DVDs, etc.

Abstract: To effectively reproduce video depending on the performance of a reproducing apparatus. A controller 446 determines whether or not an entry of video is a beginning of a chapter of video or whether or not a scene change of the entry is important. In other words, the controller 446 determines whether or not an entry under evaluation corresponds to a time of a chapter of chapter scene change information 447 or whether or not the entry is an important scene change. If an entry under evaluation corresponds to a time of a chapter, the controller 446 sets priority_flag=3 and stores it to an output server 426. The present invention can be applied to a game device or the like that uses for example a DVD.

Abstract: A data processing device and a data processing method, a program and a program recording medium, a data recording medium, and a data structure, all enable data multiplexed into multiplexed data to be specified according to metadata irrespective of the number of pieces of data. A Clip( ) being metadata about a program stream into which a plurality of elementary streams are multiplexed includes as many stream_id/private_stream_id sets as the number of elementary streams number_of_streams. The stream_id/private_stream_id sets each consist of a stream_id, defined for each attribute of data in the MPEG-2 System (ISO/IEC 13818-1), for identifying data, and a private_stream_id for identifying data whose attribute is not defined in the MPEG-2 System. And each of the elementary streams multiplexed into the program stream is specified on the basis of the stream_id and the private_stream_id included in the Clip( ). Embodiments are applicable to, e.g., game machines using a DVD.

Abstract: A reproduction apparatus has a player section, a content reproduction section, an interface section. The player section has a read section reading data from the record medium on which the content data containing at least one of a video data stream and an audio data stream and a reproduction control program controlling the reproduction of the content data are recorded, an input section accepting an input from a user, and an output section outputting the reproduced content data. The content reproduction section reproduces the content data according to the reproduction control program. The interface section interfaces among the content reproduction section, the reproduction control program, and the player section. When a command representing an end of the reproduced content data is described in the reproduction control program, the reproduction control program supplies the command to the interface section and the interface section executes a process corresponding to the command.

Abstract: Video data and output data that need to be output in synchronization therewith are synchronized. When an output of video data is later than an output of output data synchronized with the video data, at step S273, a process for one access unit is caused to be skipped. At step S275, it is determined whether the video data are referenced when other video data are decoded according to au_ref_flag of video data of the access unit whose process has been caused to be skipped. When the video data of the access unit whose process has been caused to be skipped are not referenced when the other video data are decoded, at step S277, the access unit whose process has been caused to be skipped is skipped. The present invention can be applied to for example a game device that uses a DVD.

Abstract: When content is reproduced from a disc, audio and a subtitle can be properly and automatically selected. An original language can be set as a language of an audio stream to be reproduced on a player side. An audio stream of the original language is described at a position that comes first in a clip information file. When audio and a subtitle are automatically set, if their languages match, the subtitle is not displayed. When player setting 500 denotes that audio is an original language and subtitle Japanese and streams 501 contained in a disc are an audio stream of Japanese (original language), an audio stream of English, a subtitle stream of English, and a subtitle stream of Japanese, the audio stream of Japanese as the original language and the subtitle stream of Japanese are selected according to the automatic setting. Since their languages match, although streams 502 finally selected are the audio stream of Japanese and the subtitle stream of Japanese, the subtitle stream of Japanese is not displayed.

Abstract: A record medium is disclosed. The record medium that is readable by a computer device and on which content data that contain at least one of a video stream and an audio stream and at least one resource file that contains a reproduction control program that controls the reproduction of the content data and data used by the reproduction control program are recorded. The file name of the resource file contains information that represents a language that is normally used when the content data are reproduced and information that represents a language attribute of the resource file.

Abstract: An after recording method comprising a first step of reading the original data including at least a video bit stream from a digital recording medium (1), a second step of decoding the original data, a third step of encoding audio data in synchronism with the decoding of the original data thereby to form a new audio bit stream, and a fourth step of writing the new audio bit stream in an area of the digital recording medium 1 corresponding to a time point substantially equal to the recording area of the original data. The sound after-recorded can be easily reproduced in accurate temporal agreement with the original image.

Abstract: A characteristic point detection circuit detects a characteristic point from a base band video signal and generates a characteristic point file. A compressed video signal received from the digital satellite broadcast is supplied to a multiplexing circuit as it is in the form of a bit stream. The multiplexing circuit multiplexes the compressed video signal and characteristic point file. A control circuit obtains the characteristic point file from an optical disc during reproduction, and controls reproduction of the compressed video signal. As described herein above, the supplied compressed video signal is recorded in a recording medium without deterioration of the image quality, and the recorded video signal accepts random access.

Abstract: It is possible to realize variable-speed reproduction without deteriorating the image quality. For RAPI from a RAPI information extractor (423), a controller (425) selects one of its address, PTS of the intra-picture immediately after, and the end position of the intra-picture and the second, third, fourth reference image, and creates EP_map( ) in the clip information file, which is accumulated in an output server (426). That is, among the four reference image end positions (1stRef_Picture, 2ndRef_Picture, 3rdRef_Picture, 4thRef_Picture), the controller (425) copies a value near to a predetermined number of sectors (the number of sectors which can be read out at once in the encode processing) in N-th_Ref_picture_copy, decides index_minus1 according to the N?th_Ref_picture_copy, and records it in a disc.

Abstract: It is possible to display a caption with an aspect ratio independent from the aspect ratio of a main video. When a flag indicating that the aspect ratio of the caption is 16:9 is set, the caption video image frame size (720×480) is converted so as to match the aspect ratio of 16:9 and the caption video obtained as the result is superimposed on the main video and displayed. That is, when the main video has an aspect ratio of 4:3, as shown in FIG. 19, reduction in the lateral direction is performed and the main video is displayed with addition of black tone at the right and left but the caption video is displayed with the aspect ratio of 16:9.

Abstract: The invention provides an image processing apparatus and an image processing method by which efficient communication can be achieved. An image processing apparatus, comprising a playback section for playing back image data; a transmission section for transmitting the played back image data to a reception apparatus through a predetermined transmission line; and a control section for controlling, when an instruction to temporarily stop the playback of the image data is received, the playback section and the transmission section to stop the playback and the transmission of the image data, respectively, and further controlling the transmission section to transmit a message representing that the playback of the image data is temporarily stopped to the reception apparatus through the transmission line.

Abstract: The present invention provides remarkably improved availability in a data recording method and apparatus, a data recording medium, and a data reproducing method and apparatus. By recording additional information for data reproduction in each sector on a data reproducing medium as a subcode separately from data when the data is recorded in the unit of sector, reproduction of data can be controlled using the subcode, thus making it possible to remarkably improve the availability of the data recording medium.

Abstract: A transmitting apparatus adapted to effectively use the band for transferring programs of television broadcasting. A program of a first channel transmitted from the transmitting side can be viewed in real time on the receiving side. A program of a second channel is transmitted to the receiving side in advance in a time zone of lower audience rate than other time zones and stored in a storage device of the receiving side. Each program to be stored is encrypted. When a provision time of a program comes, the data such as a key are transmitted from the transmitting side to the receiving side along with the program data of the first channel. The receiving side extracts the data such as a key and, by use of the extracted data, provides the program stored in the storage device to viewers.

Abstract: An information processing apparatus comprises an extracting means for extracting main information including first copy control information and auxiliary information representing attributes of the main information from input information; a first generating means for generating second copy control information based on the auxiliary information extracted by the extracting means; and an adding means for adding the second copy control information generated by the first generating means to the main information extracted by the extracting means. As a result, even an apparatus not capable of analyzing first copy control information is capable of executing copy control.

Abstract: A state transition of a player operation is explicitly defined to facilitate the production of interactive contents. As a player model for reproducing a disk, a model including a player 300 for reproducing a stream, a platform 301 providing an interface between the player 300 and a hardware, and a script player 302 for realizing a scenario intended by a content producer is conceived. The states of the player 300 are defined by four states defined by combinations of two states as to whether the play list reproduction is performed or not and two states as to whether the command 311 is accepted or not. The state transition of the player 300 among the four states is generated by a method 313 from the script layer 302, but not by the player 300 itself or the command 311. The states of the player 300 are small in number, and the conditions for state transition are definite. Therefore, the interactive contents can be easily produced and mounted on devices.

Abstract: The present invention provides remarkably improved availability in a data recording method and apparatus, a data recording medium, and a data reproducing method and apparatus. By recording additional information for data reproduction in each sector on a data reproducing medium as a subcode separately from data when the data is recorded in the unit of sector, reproduction of data can be controlled using the subcode, thus making it possible to remarkably improve the availability of the data recording medium.