Abstract: Management information for video data and audio data that are created after their recording is started until it is stopped and that are recorded as a stream file on a record medium is more securely stored. When their recording is started, EP entry information contained in management information of the stream file is created. Whenever EP entry information is created, it is written to a nonvolatile memory. After their recording is stopped, fixed value information and so forth that are contained in the management information are created and written to the nonvolatile memory. According to a disc eject operation, the management information written to the nonvolatile memory is written to the disc and the contents stored in the nonvolatile memory are cleared. Likewise, when power is turned off without the eject operation, information stored in the nonvolatile memory is written to the disc.

Abstract: Recording of video data is enabled by a management structure of a clip which is compatible with a BD-ROM standard. In accordance with the recording starting operation, the recording of a stream in which the video data and audio data have time-divisionally been multiplexed on a packet unit basis onto a recording medium is started. In accordance with the recording stopping operation, the stream stored in a buffer is written as a stream file onto the recording medium and a clip information file corresponding to the stream file is formed. A play item showing the whole clip information file is formed and added to the existing play list on the recording medium. A mark is stamped to the play list at time corresponding to an IN point of the play item. Subsequently, the play item which is formed in association with the recording start and stop is similarly further added to the existing play list and the mark is further stamped at the time corresponding to the IN point.

Abstract: Non-destructive editing of a movie stream recorded with management information attached thereto according to a predetermined standard format is performed. First, an entry for desired content from among real play lists is added to a virtual play list. In the virtual play list, a playback content editing operation is performed. The process of editing a virtual play list that does not contain content of an entity involves non-destructive editing that does not accompany editing of the content of an entity. In addition, non-destructive editing of a virtual play list only requires the updating of a management information file, and only involves an increase in the used amount of the recording medium by the additional amount of the management information even if a playback section is copied, thus improving user convenience.

Abstract: An information processing apparatus includes: a detecting section that detects feature information of at least one AV stream; a recording section that records the AV streams, clip information defining attributes including the detected feature information, and playback-segment data specifying at least one playback segment to a storage medium in accordance with a predetermined data-recording format, the playback-segment data being obtained by setting a playback start point and a playback end point with respect to the AV streams; a playback-segment setting section that sets the playback segments with respect to the AV streams on the basis of detection time point of the feature information; and a data generating section that generates the playback-segment data specifying the playback segments set by the playback-segment setting section.

Abstract: To improve user-friendliness in recording AV data created after recording is started until it is stopped as a file. AV data that are created after recording is started until it is stopped are recorded as a file. Information that represents a reproduction region and mark information that represents a jump position are additionally written to a reproduction list file. At this point, it is determined whether or not restrictions that have been set to the reproduction list file and an attribute file for additional writing are satisfied on the basis of the reproduction list file as an additionally writable candidate and the attribute file that correlates reproduction time and address of the AV data. When having been determined that they be satisfied, the reproduction region information and the mark information are additionally written to the reproduction list file as the additionally writable candidate. When having been determined that they be not satisfied, a new reproduction list file is created.

Abstract: An apparatus and a method for quickly starting recording seamless-playable data are provided. At the end of recording a preceding record content, identification information of a clip information file for a subsequent record content to be recorded next is recorded in an attribute information storage file set for the preceding record content. More specifically, a clip information file for a subsequent chapter is reserved at the end of recording of a preceding chapter, and an identifier of the clip information file is recorded in the clip information file for the preceding record chapter. Through the prior reservation process of the clip information file, an updating process for updating the clip information file at the start of recording of the subsequent chapter becomes unnecessary. Data recording, such as a photographing operation of a video camera is thus quickly started.

Abstract: To allow AV data created after the start of recording until the end of recoding to be easily continuously recorded and reproduced for a long time as a file. A stream of which AV data have been multiplexed is recorded to a file in the unit of a packet. When the file size exceeds 2 GB with the next packet that is recorded, record control is performed such that the time of the last end of audio data of the current file matches the time of the beginning of audio data of the next file to which the stream is recorded, the current file is closed, and seamless connection that denotes that the closed file and the next file to which the stream is recorded are connected such that audio data do not overlap is set. A file is newly created and the stream is continuously recorded thereto. The recording of the file is stopped according to a stop operation. When the recording is performed for a long time, a file is automatically divided.

Abstract: An apparatus and a method for performing a data recording process that permits seamless playing are provided. An information processing apparatus such as a video camera records data in a manner that permits contents having discontinued recording timings to be played in a seamless fashion. To this end, the information processing apparatus acquires seamless information of a preceding record content to be applied to a recording process of a subsequent record content, and records the seamless information in a record file defined by a record format. For example, the seamless information is recorded in a clip information file. The seamless information remains recorded on an information recording medium as long as the content recorded on the information recording medium remains undeleted. The information processing apparatus can thus read and use the seamless information at any time.

Abstract: Disclosed herein is a picture processing apparatus including: an attribute information detection section configured to detect attribute information about a plurality of pictures included in moving picture data; an index data creation section configured to create index data for indexing the attribute information to the positions in the moving picture data of those of the plurality of pictures which correspond to the attribute information; and a stream data creation section configured to create stream data including the moving picture data and the index data.

Abstract: An editing process is to be properly performed for video data that have been compression-encoded using inter-frame compression. Identification information that identifies a device that has recorded the stream file is extracted from the stream file that stores the video stream to be edited. When the extracted identification information represents a device that can encode the video stream with the same attribute as an attribute that the encoder of the editing apparatus can handle, an editing process is performed on the basis of a technique of decoding only a necessarily minimum region and re-encoding it. Otherwise, the editing process is performed on the basis of a technique of encoding all a video stream to be edited and re-encoding it. It can be determined whether or not the encoding process on the basis of the technique of decoding only a necessarily minimum region can be performed on the basis of only predetermined identification information contained in the video stream.

Abstract: An information converting apparatus includes an additional information retrieval unit for retrieving additional information incidental to moving image data stored on a stream file having a first recording format, an additional information converting unit for converting the retrieved additional information in accordance with a second recording format, and an additional information recording control unit for controlling recording of the converted additional information onto a stream file having the second recording format.

Abstract: A movie stream recorded on a recording medium with accompanying management information according to a predetermined standard format is edited while satisfying an upper limit condition. When the number of play items or the number of playlist marks in a playlist has reached or approached the upper limit condition, last chapter information in the playlist is moved to the beginning of a subsequent playlist or a newly created playlist. Furthermore, in a case where there exists a margin against the upper limit condition regarding the number of play items or the number of playlist marks as one playlist even if contents of two or more adjacent playlists are combined, the playlists are integrated to reduce the number of playlists on the recording medium.

Abstract: A configuration is provided which enables reading and display processing of a representative image such as thumbnail list display to be performed effectively. For example, an arrangement is made wherein, as the access information of a referenced image (IDR) serving as a representative image that has been set corresponding to a chapter, representative image access information including address information and reading data size information that are applied to reading of the representative image is recorded in a playlist file or index file. According to this configuration, in the case of performing reading playback of a representative image, such as thumbnail list display, processing with reference to the representative image access information can be performed, and reading playback of an IDR can be performed effectively and rapidly.

Abstract: The present invention relates a recording apparatus and a recording method, a reproducing apparatus and a reproducing method, and a program that make it possible to easily judge whether data was recorded in a recording medium by an apparatus of own model. An own model/another model information generating unit 41 generates, for each arbitrary recording unit, own model/another model information that is information indicating that the recording unit was recorded by an apparatus of own model. A discrimination code calculating unit 42 sets VMGI and an effective management table TV as a continuous data sequence and sets a result of calculating a hash value of the data sequence as a discrimination code. A recording and reproducing apparatus 1 records the discrimination code and the own model/another model information in a management table TV area of an optical disk 51.

Abstract: A data processing apparatus which divides stream data into portions is disclosed. An evaluation value calculating section calculates an evaluation value at a dividing candidate position of the stream data based on an evaluation function. A comparing section compares the evaluation value calculated by the evaluation value calculating section with a predetermined threshold value. A dividing candidate position obtaining section obtains the dividing candidate position of the stream data in each predetermined unit. A controlling section decides a dividing position of the stream data based on a compared result of the comparing section. A controlling section causes the dividing candidate position obtaining section to obtain a second dividing candidate position when the compared result of the comparing section denotes that the evaluation value at the first dividing candidate position does not exceed the threshold value.

Abstract: An editing device dubbing stream data stored in a second recording medium to a first recording medium includes: a recording unit recording in the first recording medium; a recording control unit controlling the recording unit to record the specified range of stream data in a stream file in the first recording medium as a stream file, based on management information recorded in the second recording medium, wherein at least a stream information file in which a stream file and stream information are stored, and a playback list file in which playback section data and mark information indicating the playback point-in-time information can be stored, are recorded as management information; and a management information generating unit generating the management information; wherein the management information generating unit generates management information based on the relation between the specified range and the playback section data and stream information corresponding to the specified range.

Abstract: The present invention relates to a recording apparatus and method, a reproducing apparatus and method, a recording medium, and a program for reproducing a video stream in a simpler method. A VOBU of an AV stream recorded on a recording medium includes, from the beginning thereof, navigation information, and then provider definition information followed by V_PCK, A_PCK, and S_PCK. The provider definition information contains closed GOP flag information, broken link flag, and I picture reproduction order information, the number of real frames, the number of reproduction frames, and progressive frame flag, related to the video data contained in the VOBU. A reproducing apparatus performs a reproduction process based on the provider definition information. The present invention is applicable to a reproducing apparatus of DVD.

Abstract: A data recording structure supporting an AVCHD format is provided. The data recording structure allows a playing process, an editing process and a write-once recording process to be quickly performed. When data recording is performed in a data recording format having a layered management structure such as an AVCHD format, identification information is stored in an index file containing index information for record data. The identification information is needed to perform one of the playing process on the record data, the editing process on the record data and the write-once recording process on data. This arrangement eliminates the need for reading a variety of files and retrieving information when one of the record data playing process, the record data editing process and the write-once recording process is performed. Each process is thus quickly performed.

Abstract: A stream on a recording medium is divided into parts, and is subjected to rearrangement editing while the compatibility with a playback-only device is maintained. By adopting a division processing procedure of a play item, rearrangement processing of a stream for each chapter is achieved. In a product specification, a plurality of real play lists are put together into a series of chapter groups to be presented to the user, and thus there are cases where rearrangement of chapters are closed in the same play list, and cases where the rearrangement extends over a plurality of play lists. Moreover, rearrangement editing, which moves a chapter between real play lists, between virtual play lists, and further from a real play list to a virtual play list, is performed.

Abstract: An information processing apparatus includes a controller for controlling data recording to an information recording medium. The controller updates a command storage file storing a command set in response to AV stream data to be recorded on the information recording medium and an index file storing index information and then records the updated command storage file and the updated index file on the information recording medium, the command storage file and the index file being updated and recorded in response to a determination that a predetermined update timing different from the timings of the recording of the AV stream data onto the information recording medium and the editing of the recorded AV stream data is reached.