摘要:
A virtual file system (VFS) is constructed by reliably acquiring subsequent data corresponding to an information recording medium from a local storage unit, and thus, data reproduction is executed. A data processing unit configured to read out and reproduce data recorded in the information recording medium, and data stored in the local storage unit which is different from the information recording medium, is provided. The data processing unit executes processing of selecting data associated with the information recording medium from the local storage unit, as reproduction target data, executes directory name calculation processing in which a conversion function corresponding to a version of the information recording medium is applied to configuration data of a root certificate recorded in the information recording medium, at the time of performing the processing of selecting the reproduction target data, and selects data which is recorded in a directory having a calculated directory name from the local storage unit, as the reproduction target data.
摘要:
The present technology relates to a playing apparatus, a playing method, an information processing apparatus, an information processing method, a program, and a recording medium that allow playing of appropriate HDR videos. A playing apparatus in an aspect of the present technology has a storage unit that has regions for storing a plurality of units of information indicating the state of the playing apparatus including preference information indicating the type of an HDR video to be preferentiallyplayed, out of a first HDR video that is essential in including in a content an HDR video as a video in a wider brightness range than a standard brightness range and a second HDR video that is capable of being included in the content. The playing apparatus acquires encoded data of the HDR video to be preferentially played indicated by the preference information, out of encoded data of the first HDR video and encoded data of the second HDR video, and decodes the acquired encoded data. The present technology is applicable to Blu-ray disc players.
摘要:
Disclosed is a method for reducing the time from reactivation of a power supply following disconnection of the power supply to the start of recording in a constantly operating video recording apparatus. The recording apparatus is provided with a recording device having a location information area and a video data area. In the location information area, location information of video data stored in the video data area is stored. In the video data area, the video data are stored in units of blocks with a size of 1 MB or greater. The tail end of the block is used as a table of contents region for storing table of contents information of a plurality of the most-recent blocks. By providing the table of contents regions at a predetermined frequency, the tables of contents of all blocks being used in the video data area are retained in a distributed and redundant manner. Each time the power supply is re-activated, the tables of contents regions are read, and pieces of the table of contents information are joined appropriately to construct a complete table of contents in memory. The need for recording the tables of contents of all blocks at one location on a recording device is eliminated.
摘要:
Methods and devices are described for reducing the audible effect of pre-responses in an audio signal. The pre-responses are effectively delayed by employing a digital non-minimum-phase filter, which includes a zero lying outside the unit circle in its z-transform response. This zero is not paired with another zero at a reciprocal position inside the unit circle, as this would linearise the phase modification. The filtering can introduce a greater group delay at the pre-response frequency than at a low frequency, such as 500 Hz or even 0 Hz. The technique can be used to reduce pre-responses in an existing audio signal and also to pre-empt pre-responses that would be introduced to the audio signal by subsequent processing.
摘要:
In an optical information record medium including a plurality of record layers that are recordable, various signal characteristics with respect to an area X in a record layer A (second layer) among the plurality of record layers are defined under a condition that an area Y in a record layer B (first layer) adjacent to the record layer A (second layer) on an incident side thereof along an optical axis of a light beam shone on the area X is a prerecorded area. This suppresses variation and errors in the measurement of characteristics of various signals caused by the interfering light coming from an adjacent record layer, thereby making it possible to manage and define media parameters with characteristic values having high reliability, compatibility, and reproducibility.
摘要翻译:在包括可记录的多个记录层的光学信息记录介质中,在多个记录层中的记录层A(第二层)中关于区域X的各种信号特性是在区域Y in 沿着照射在区域X上的光束的光轴在其入射侧上与记录层A(第二层)相邻的记录层B(第一层)是预先记录的区域。 这抑制了由来自相邻记录层的干涉光引起的各种信号的特性测量中的变化和误差,由此使得可以管理和定义具有高可靠性,兼容性和再现性的特征值的介质参数。
摘要:
Data including a digital stream obtained by encoding video information is recorded in a recording medium. A recording region of the recording medium has a first recording region where reading is performed at a first read rate, and a second recording region where reading is performed at a second read rate that is faster than the first read rate. The data includes a digital stream having real-time attributes and a data file having non-real-time attributes. The data file to be read in during playback of the digital stream is recorded in, of the first recording region and the second recording region, the same recording region as the recording region where the digital stream is recorded.
摘要:
There is provided an optical medium reproduction device that optically reproduces an optical medium in which a plurality of tracks are provided, the optical medium reproduction device including: a detection unit configured to divide a cross-section of a beam returning from the optical medium into at least one channel corresponding to an outer region in a radial direction, at least one channel corresponding to a region that is different in position in a tangential direction, and a channel corresponding to the other region, and form detection signals of the channels; a multi-input equalizer unit including a plurality of equalizer units to which the detection signals of the plurality of channels are supplied, respectively, the multi-input equalizer unit being configured to calculate outputs of the plurality of equalizer units and output the outputs as an equalized signal in a manner that a phase difference between two of the regions is set to be a predetermined phase difference; and a binarization unit configured to perform a binarization process on the equalized signal to obtain binary data.
摘要:
The present technology relates to a reproducing apparatus for enabling an appropriate video depending on a viewing environment to be reproduced, a reproducing method, an information processing apparatus, an information processing method, a program, and a recording medium. The reproducing apparatus according to the present technology analyzes reproduction management information describing therein type information on a form of providing a HDR video which is compatible with a SDR video with a standard luminance range and whose luminance range is wider than the standard luminance range or a form of providing the SDR video compatible with the HDR video. Further, the reproducing apparatus acquires and reproduces encoding data of the HDR video or encoding data of the SDR video provided in a form indicated by the type information. The present technology is applicable to Blu-ray Disc players.
摘要:
The present disclosure relates to an information processing device, an information processing method, a program, and a recording medium that make it possible to set a dynamic range of an image to be reproduced. A BD-J execution unit sets a dynamic range of a screen to be reproduced. A video decoder generates a main video to be reproduced in the dynamic range set by the BD-J execution unit. The present disclosure can be applied, for example, to a reproducing device or the like that reproduces an optical disk that records an AV stream of a main video in a standard dynamic range (SDR) and an AV stream of a main video in a high dynamic range (HDR).