Recording medium, playback device, recording device, playback method and recording method that enable editing of recorded content while maintaining compatibility with old format

A recording medium and reproduction device technology, applied in the field of image editing, can solve the problems of poor practicability, deletion, etc., and achieve the effect of avoiding incongruity

Active Publication Date: 2013-09-18
PANASONIC CORP
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such data occupies a large area on the recording medium, but the data cannot be deleted from the recording medium, so there is a problem of poor practicality.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Recording medium, playback device, recording device, playback method and recording method that enable editing of recorded content while maintaining compatibility with old format
  • Recording medium, playback device, recording device, playback method and recording method that enable editing of recorded content while maintaining compatibility with old format
  • Recording medium, playback device, recording device, playback method and recording method that enable editing of recorded content while maintaining compatibility with old format

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0103] When the data format for recording movie works is revised from a format dedicated to stereoscopic viewing to a format capable of stereoscopic viewing, practitioners aim to overcome technical obstacles faced.

[0104] In the case of a data format for recording stereoscopically viewable movie works, among multiple video streams constituting multi-viewpoints of stereoscopically viewable images, when decoding a video stream (base-view video stream) that can be independently decoded, Two-dimensional playback is possible, and when multiple multi-view video streams (base-view video stream and dependent-view video stream) are played back, stereoscopic playback is possible.

[0105] When a recording medium recorded with a stream file including a plurality of video streams for stereoscopic viewing is loaded in a conventional device and the recording medium is used for editing, only the elementary video stream is shortened and only the elementary video stream is divided into two. ...

no. 2 approach

[0136] The first embodiment targets stereoscopic video streams, but the present embodiment aims at overcoming technical obstacles in revising the movie recording format in order to expand the attributes of planar video streams.

[0137] In a video stream that can be recorded in the movie recording format, each picture has two types: a picture of a progressive scan (successive scan) system and a picture of an interlaced scan (interlaced scan) system. In a video stream composed of progressive pictures, 24 Hz (≒23.976 (=24000 / 100001)) Hz is prescribed as a standard required frame rate (mandatory rate). In this way, each picture is composed of progressive scan pictures, and a video stream whose frame rate becomes 24 Hz is called "24P video stream" (23.976P to be precise, but it is usually called 24P). In addition, 24 Hz and 25 Hz are known as frame rates of video streams composed of progressive pictures.

[0138] On the other hand, a typical video stream in which each picture is ...

no. 3 approach

[0176] Taking the movie recording format of a Blu-ray disc as an example, a specific method for overcoming the above-mentioned obstacles to implementation will be described. As the movie recording format, the BD-RE disc format specified by the BDMV Recording Specification is selected.

[0177] The BDMVRecording Specification defines a subset of BDMVs that can perform real-time recording-editing of BDMV content. The format of this subset is called Realtime Recording Editing Format (RREF), and is used to make the recorded version of the data format of the BD-ROM disc suitable for real-time recording and editing.

[0178] The format corresponding to BDMV Recording Specification and recording of AVC108060P / 50P video stream and / or recording of MVC108060i / 50i video stream is positioned at version 3.1 of the latest version in the Blu-ray Rewritable format. Therefore, the format of the product level targeted by the embodiment of the present application is the Blu-ray Rewritable versi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An Index.bdmv file is recorded in a BDMV directory of a rewritable recording medium. The Index.bdmv file contains an editability_flag and an extended_editability_flag. When the recording medium is loaded into a device, the editability_flag specifies whether the recording medium will be handled as an editable medium by the device. For a legacy device that does not support 3D video recording or editing, the recording medium is handled as a non-editable medium by means of the editability_flag being set to off. When the recording medium is loaded into a non-legacy device that supports 3D video recording and editing, even if the editability_flag is set to off, the extended-editability_flag specifies that the recording medium will be handled as an editable medium by the non-legacy device, and that editing of a stream file is possible.

Description

technical field [0001] The present invention belongs to the technical field of image editing. Background technique [0002] In video editing, video editing of various specific contents is known, from advanced video editing with special visual effects to basic video editing such as partial deletion, division, and integration of video. When recording a video, the video is coded by a coding method such as MPEG2 or MPEG4-AVC, stored in a stream file of the MPEG2-TS format, and written to a recording medium. Since the recording medium is recorded in the form of a file, the above-mentioned stream file can be partially deleted, divided, or integrated by rewriting the file system management information like a normal computer file. Since it is only necessary to rewrite the file system management information, the editing function of the file system information rewriting type is generally installed as a standard function of the recording device or the reproducing device. [0003] In ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): G11B27/00G11B20/10H04N5/85H04N5/92H04N13/00
CPCG11B27/034G11B27/322G11B27/329H04N5/85G11B2220/216G11B2220/2541H04N9/8042H04N9/8205H04N9/8233H04N13/161H04N13/189H04N13/178H04N13/183G06F3/0484
Inventor持永和宽小川智辉矢羽田洋
OwnerPANASONIC CORP