摘要:
In a method for creating and recording management information for searching recorded digital data streams when a digital data stream is recorded on a recording medium, index information for pointing to the location of the time information corresponding to the first stream object unit of each stream object on a time information table is created and recorded. When reproducing or searching the recorded digital data stream, a stream object is found using the time information of stream objects and the recording location corresponding to a requested search time is found using the index information.
摘要:
Method and apparatus for recording digital data transport stream units such as application packets in sectors of a disk type recording medium such as a digital versatile disk and create and record management information for the recorded transport stream units. In case that a single transport stream unit is divided and then recorded across two sectors, header information of the preceding sector including management information which is created corresponding to each transport stream unit is generated, and the size of the header information and transport stream units to be recorded in the preceding sector is compared with the size of a sector. If the size difference is 1 byte, an invalid header data distinguishable from normal application header extension information is inserted to maintain the correspondence between each transport stream unit to be recorded in the preceding sector and its management information.
摘要:
A recording medium according to an embodiment includes a recording layer and a transport stream recorded on the recording layer. The transport stream is composed of one or more predetermined units, each predetermined unit starting with at least one transport packet for carrying navigation information used to manage subsequent transport packets. The first packet of the at least one transport packet carries only the navigation information including program clock reference (PCR) information and does not carry presentation data.
摘要:
An optical disc and a method and apparatus for recording digital data streams and management information on the disc, are provided. The method includes recording a digital data stream including at least one predetermined-sized unit, each unit carrying header information and at least one packet, the header information being represented in at least one header entry, selectively appending an additional header entry based on whether a number of the at least one header entry corresponds to a number of the at least one packet, and recording an indication information that indicates whether or not the additional header entry is appended.
摘要:
An optical disc and a method and apparatus for recording digital data streams and management information on the disc, are provided. The method includes recording a digital data stream including at least one predetermined-sized unit, each unit carrying header information and at least one packet, the header information being represented in at least one header entry, selectively appending an additional header entry based on whether a number of the at least one header entry corresponds to a number of the at least one packet, and recording an indication information that indicates whether or not the additional header entry is appended.
摘要:
A recording medium with the increased recording efficiency is provided. Depending upon the size of the remaining area of a sector, a transport stream unit is recorded across two sectors with the result that sectors contain no null data. If the size of the remaining area of the last sector of a stream object unit is less than the size of a transport stream unit, the remaining area is padded with null data.
摘要:
A recording medium with the increased recording efficiency is provided. Depending upon the size of the remaining area of a sector, a transport stream unit is recorded across two sectors with the result that sectors contain no null data. If the size of the remaining area of the last sector of a stream object unit is less than the size of a transport stream unit, the remaining area is padded with null data.
摘要:
An optical disc and a method and apparatus for recording digital data streams and management information on the disc, are provided. The method includes receiving a digital data stream including a plurality of packets; and recording the digital data stream while grouping the data packets into a packet group, one or more packet groups into a first data unit, and one or more first data units into a second data unit, wherein each packet group with a fixed size includes a header followed by a plurality of data packets, each data packet comprising time stamp information and packet, wherein the header includes first control information indicating a number of valid data within the packet group and second control information indicating whether a stuffing data exists.
摘要:
A recording medium according to an embodiment includes a recording layer and a transport stream recorded on the recording layer. The transport stream is composed of one or more predetermined units, each predetermined unit starting with at least one transport packet for carrying navigation information used to manage subsequent transport packets. The first packet of the at least one transport packet carries only the navigation information including program clock reference (PCR) information and does not carry presentation data.
摘要:
A method and apparatus for recording time information for received digital data streams are provided. The method includes recording first time information and second time information on a recording medium. The first time information is part of management data for managing presentation data and the second time information is time information of the presentation data. The format of the first time information coincides with the format of the second time information.