Method and apparatus for recording and reproducing video data, and information storage medium in which video data is recorded by the same
a technology of video data and information storage medium, which is applied in the field of recording and reproducing video data, can solve the problems of hypertext data (b) and video data (a′) not being properly composed and displayed during reproduction
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
first embodiment
[0044]FIG. 1 is a block diagram of a recording apparatus according to the present invention. Referring to FIG. 1, the recording apparatus includes a filter 1, a controller 2, and a recorder 3.
[0045]The filter 1 extracts video data from an input bitstream. The recorder 3 decodes the extracted video data, re-encodes the decoded video data in a different way to an originally encoded video data, and records the re-encoded video data in an information storage medium, i.e., an optical disc 100. The controller 2 generates and transmits video transform information, which is referred to for decoding the video data into its original state, to the recorder 3.
[0046]For example, when a bitstream is a digital broadcast stream which is transmitted from a digital TV broadcast station, the filter 1 filters an information packet containing program information data for reproduction and recording. In addition, the filter 1 filters a data packet of a selected program.
[0047]A digital broadcast stream is ...
second embodiment
[0067]FIG. 10 is a flowchart of a recording method according to the present invention. Referring to FIG. 10, a recording apparatus receives an MPEG TS into which video data and hypertext data are multiplexed and changes the resolution of video data when recording it. In other words, the video decoder 51 decodes video data in step 1001. The video encoder 53 re-encodes the decoded video data having a changed resolution in step 1002. The filter 55 provides hypertext data, into which the MPEG TS is demultiplexed, to the MUX 57 in step 1003. The PSI generator 56 generates and embeds video transform information (a video transform descriptor) in the video element descriptor of a PMT packet in step 1004. The MUX 57 multiplexes the encoded video data (and audio data) and the hypertext data and outputs the result of multiplexing in step 1005. The recording apparatus records PMT configuration information in a navigation data area in step 1006 and records a multiplexed bitstream in a program ar...
third embodiment
[0077]FIG. 16 is a flowchart of a reproducing method according to the present invention. Referring to FIG. 16, the reader 4 reads an MPEG TS from the program area of the optical disc 400 and outputs it to the REMUX 67 and the DEMUX 60 in step 1601. In step 1602, the reader 4 reads PMT configuration information from the navigation data area of the optical disc 400, and the video transform information extractor 6 generates a PMT packet based on the PMT configuration information and provides the PMT packet to the REMUX 67. The REMUX 67 multiplexes the MPEG TS and the PMT packet into a digital signal in step 1603. The DEMUX 60 demultiplexes the MPEG TS into video data, audio data, hypertext data, and program information data in step 1604. The filter 65 performs filtering to output necessary hypertext data and program information data in step 1605. The video transform information extractor 6 provides video transform information (a video transform descriptor) to the video decoder 61 in st...
PUM
| Property | Measurement | Unit |
|---|---|---|
| aspect ratio | aaaaa | aaaaa |
| aspect ratio | aaaaa | aaaaa |
| aspect ratio | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More