Skip to main content
The Moving Picture Experts Group
Home
Standards
MPEG-1
Systems
Video
Audio
Conformance testing
Software simulation
MPEG-2
Systems
Text of ISO/IEC 13818-1:2013/PDAM 6 Delivery of Timeline for External Data
Video
Audio
Conformance testing
Software simulation
System extensions - DSM-CC
Advanced Audio Coding
Overview of the Report on the Formal Subjective Listening Tests of MPEG-2 NBC multichannel audio coding
Report on the Formal Subjective Listening Tests of MPEG-2 NBC multichannel audio coding.
Report on the MPEG-2 AAC Stereo Verification Tests
Revised report on complexity of MPEG-2 AAC tools
VOID
System extension RTI
Conformance extension - DSM-CC
IPMP on MPEG-2 Systems
MPEG-4
Systems
Video
Audio
Formal Verification Report on MPEG-4 Parametric Audio Coding
Listening Test Report on HE-AAC V2
MPEG-4 Audio verification test results: Audio on Internet
MPEG-4 Audio verification test results: Speech Codecs
Report on Informal Subjective Quality Tests of MPEG-4 Extension 1 (Bandwidth Extension)
Report on MPEG-4 AAC-ELD Verification Tests
Report on MPEG-4 Version 2 Audio Verification Test
Report on Transmission of MPEG-4 Audio over RTP
Report on the MPEG-4 audio NADIB verification tests
Report on the Verification Tests of MPEG-4 High Efficiency AAC
Revised Report on complexity of MPEG-2 AAC Tools
Verification Report on MPEG-4 ALS
Verification Report on MPEG-4 SLS
Conformance testing
ISO/IEC ISO/IEC 14496-5:2009/PDAM6 Pattern based 3D mesh compression conformance
Reference Software
Delivery Multimedia Integration Framework
Optimised software for MPEG-4 tools
4 on IP framework
Reference Hardware Description
Advanced Video Coding
3D-AVC Test Model 8
Report of Results of the CfP on MFC
Scene Description and Application Engine
Revised text of ISO/IEC CD 14496-11 2nd edition
ISO Base Media File Format
Text of ISO/IEC 14496-12 DCOR 1
Text of ISO/IEC 14496-12:201X/PDAM 2 & ISO/IEC 15444-12:201X/PDAM 2 carriage of timed text
WD of ISO/IEC 14496-12:2012 AMD 4 Enhanced audio support
WD of ISO/IEC 14496-12:2012 AMD 4 Enhanced audio support
WD of carriage of still image and image sequences
IPMP Extensions
MP4 File Format
AVC File Format
Text of ISO/IEC 14496-15:2010/DAM 2 Carriage of HEVC
Text of ISO/IEC 14496-15:2013/DCOR 1
WD of ISO/IEC 14496-15:2013 AMD 1 Enhanced carriage of HEVC and support of MVC with depth information
Animation Framework eXtension (AFX)
ISO/IEC ISO/IEC 14496-5:2001/PDAM36 Pattern based 3D mesh compression Reference Software
Pattern based 3D mesh compression
WD of ISO/IEC 14496-16:2011/Amd.3 Web3DG coding
Streaming Text Format
Font compression and streaming
Synthesized Texture Stream
Lightweight Application Scene Representation
MPEG-J Extension for rendering
Open Font Format
Call for Proposals for ISO/IEC 14496-22 "Open Font Format" Color Font Technology and MATH layout support
Text of WD of ISO/IEC 14496-22 3rd edition
White paper on Open Font Format
Symbolic Music Representation
Audio-System interaction
3D Graphics Compression Model
Audio Conformance
3D Graphics Conformance
Composite Font
Text of ISO/IEC 14496-28 DCOR 1
Web Video Coding
Text of ISO/IEC CD 14496-29 Web Video Coding
Text of ISO/IEC DIS 14496-29 Web Video Coding
Timed Text and Other Visual Overlays in ISO Base Media File Format
ISO/IEC 14496-30 Timed Text and other visual overlays in ISO Base Media File Format
Video Coding for Browsers
Working Draft 1 of Video Coding for browsers
Working Draft 2 of Video Coding for Browsers
Common Test Conditions for Proposals on VCB Enhancements
Conditions for visual comparison of VCB, IVC and WVC codecs
Reference software and conformance for file formats
Internet Video Coding
Call for Proposals on Internet Video Coding Technology
ITM 3.0 Software Description
Internet Video Coding Test Model (ITM) v 3.0
Internet Video Coding Test Model (ITM) v 5.0
Internet Video Coding Test Model (ITM) v 6.0
Internet Video Coding WD 0.5
Requirements for Internet Video Coding Technologies
MPEG-7
Systems
Description Definition Language
Visual
Audio
Multimedia Description Schemes
Reference Software
N15127, Text of ISO/IEC CD 15938-6:201X Reference software (2nd edition)
Conformance
Extraction and Use of MPEG-7 Descriptions
Profiles
Schema definition
Profile schemas
Final Text of ISO/IEC TR 15938-11:2005/DAM1 Audiovisual description profile (AVDP) schema
Query Format
Compact Descriptors for Visual Search
Announcement of CDVS Awareness Event
Study Text of ISO/IEC CD 15938-13 Compact Descriptors for Visual Search
Text of ISO/IEC CD 15938-13 Compact Descriptors for Visual Search
Compact descriptors for video analysis
Compact Descriptors for Video Analysis for Search and Retrieval Applications: Draft Evaluation Scenarios
Compact Descriptors for Video Analysis: Requirements for Search Applications
Data Requirements for Compact Descriptors for Video Analysis in Search and Retrieval Applications
Overview of applications and objectives of Compact Descriptors for Video Search
Compression of neural networks for multimedia content description and analysis
Conformance and Reference Software for Compact Descriptors for Video Analysis
MPEG-21
Vision, Technologies and Strategy
Digital Item Declaration
Digital Item Identification
IPMP Components
Rights Expression Language
Rights Data Dictionary
Digital Item Adaptation
Reference Software
File Format
Digital Item Processing
Evaluation Tools for Persistent Association
Test Bed for MPEG-21 Resource Delivery
VOID
Conformance
Event reporting
Binary format
Fragment Identification
Digital Item Streaming
Media Value Chain Ontology
Call for Proposals on an MPEG Media Value Chain Ontology
Requirements for a Media Value Chain Ontology
Contract Expression Language
White Paper on MPEG-21 Contract Expression Language (CEL) and MPEG-21 Media Contract Ontology (MCO)
Media Contract Ontology
User Description
Call for Proposals on MPEG User Description (MPEG-UD)
Draft Call for Proposals on MPEG User Descriptions
Draft Requirements on MPEG User Descriptions
Draft Requirements on MPEG User Descriptions
Draft Use Cases for MPEG User Description (Ver. 4.0)
Requirements on MPEG User Description
Use Cases for MPEG User Description
Use Cases for MPEG User Description
MPEG-A
Purpose for Multimedia Application Formats
Music Player Application Format
Photo Player Application Format
Musical Slide Show Application Format
Media Streaming Application Format
Professional Archival Application Format
Open Access Application Format
Portable Video Application Format
Digital Multimedia Broadcasting Application Format
Surveillance Application Format
Stereoscopic Video Application Format
Interactive Music Application Format
Augmented Reality Application Format
CD of ISO/IEC 23000-13, Augmented Reality Application Format
Requirements for Augmented Reality Application Format
Study text of DIS of ISO/IEC 23000-13, Augmented Reality Application Format
Study text of DIS of ISO/IEC 23000-13, Augmented Reality Application Format
WD of the 2nd Edition of ISO/IEC 23000-13, Augmented Reality Application Format
ARAF Brings the Scene to Life
Use cases for ARAF 2nd Edition
WD 3.0 of ARAF 2nd Edition
Augmented Reality Reference Model
Candidate WD 4.0 MAR Reference Model
Logistic information for the 4th JAhG MAR meeting
Study text of DTR of ISO/IEC 23000-14, Augmented reality reference model
Study text of DTR of ISO/IEC 23000-14, Augmented reality reference model
Study text of DTR of ISO/IEC 23000-14, Augmented reality reference model
WD 2.0 MAR Reference Model
WD 3.0 MAR Reference Model
WD of ISO/IEC 23000-14, Augmented reality reference model
Media Linking Application Format
WD of ISO/IEC 23000-18 Media Linking Application Format
Multi-Image Application Format
Multisensory Effects Application Format
Publish/Subscribe Application Format
Requirements for Publish/Subscribe Application Format (PSAF)
Visual Identity Application Format
Use Cases for Processing and Sharing of Media under User Control
MPEG-B
Binary MPEG format for XML
Fragment Request Unit
XML Representation of IPMP-X messages
Codec Configuration Representation
Bitstream Syntax Description Language
WD of ISO/IEC 23001-4:201X/Amd.1 Parser Instantiation from BSD
VOID
Common Encryption for ISO Base Media File Format Files
Text of ISO/IEC 23001-7 PDAM 1 Simple pattern-based encryption mode
Common Encryption for MPEG-2 Transport Stream
Carriage of Timed Metadata Metrics of Media in ISO Base Media File Format
Carriage of Web Resource in ISOBMFF
Green Metadata
Call for Proposals on Green MPEG
Context, Objectives, Use Cases and Requirements for Green MPEG
Context, Objectives, Use Cases and Requirements for Green MPEG
Draft Call for Proposals on Green MPEG
Requirements on Green MPEG
Text of ISO/IEC CD 23001-11 Green Metadata
Partial File Format
Sample Variants in the ISO Base Media File Format
MPEG-C
Accuracy specification for implementation of integer-output IDCT
Fixed point 8x8 DCT/IDCT
Auxiliary Video Data Representation
Media Tool Library
Reconfigurable Media Coding Conformance and Reference Software
Tools for reconfigurable media coding implementations
MPEG-D
Dynamic Range Control
Dynamic Range Control Metadata Makes Itself Heard
MPEG Surround
Performance of MPEG Surround Technology
Report on MPEG Surround Verification Tests
Spatial Audio Object Coding
Uncompressed Audio in MP4 FF
Unified Speech and Audio Coding
Test Report on Stereo Coding Performance of the USAC Common Encoder, JAME
Verification Test Report on USAC Common Encoder, JAME
MPEG-E
Architecture
Multimedia API
Component Model
Resource Management
Component Download Framework
Fault Management Framework
Integrity Management Framework
Reference Software and Conformance
MPEG-M
Architecture
MPEG Extensible Middleware API
Call for Proposals on MPEG eXtensible Middleware
Guidelines for normative APIs compliant to the MXM standard for future MPEG standards
Requirements for MPEG eXtensible Middleware (MXM)
Reference Software and Conformance
Elementary Services
Draft Requirements on Interfaces to Payment and Cashing Systems
Ideas on Protocols supporting AIT Services
Service aggregation
Requirements for Advanced IPTV Terminal (AIT)
Use Cases for Advanced IPTV Terminal (AIT)
MPEG-U
Widgets
Advanced User Interaction Interface
WD of ISO/IEC 23007-2 2nd Edition
Reference Software and Conformance
MPEG-V
Architecture
ISO/IEC CD 23005-1 3rd Edition Architecture
Control Information
ISO/IEC CD 23005-2 3rd Edition Control Information
Sensory Information
ISO/IEC CD 23005-3 3rd Edition Sensory Information
Virtual World Object Characteristics
ISO/IEC CD 23005-4 3rd Edition Virtual World Object Characteristics
Data Formats for Interaction
ISO/IEC CD 23005-5 3rd Edition Data Formats for Interaction Devices
Common Types and Tools
ISO/IEC CD 23005-6 3rd Edition Common types and tools
Reference Software & Conformance
White paper on MPEG-V
White paper on MPEG-V
MPEG-H
MPEG Media Transport
Study of ISO/IEC CD 23008-1 MPEG Media Transport
Text of ISO/IEC 2nd CD 23008-1 MPEG Media Transport
Requirements on MPEG Media Transport (MMT)
Use Cases for MPEG Media Transport (MMT)
High Efficiency Video Coding
3D Video Subjective Quality Assessment Test Plan v2
Call for 1000 and 4000 nits Peak Brightness test material for HDR and WCG Video Coding
Call for Evidence (CfE) for HDR and WCG Video Coding
Defect Report on 23008-2:201X
Draft Call for Evidence (CfE) for HDR and WCG Video Coding
Draft Call for Proposals for coding of screen content
Draft Requirements and Explorations for HDR and WCG Content
Draft Requirements for Full Gamut Content Distribution
Draft Requirements for future extensions of HEVC in coding screen content
Draft Test conditions for HEVC still picture coding performance evaluation
Draft Test conditions for HEVC still picture coding performance evaluation
Draft requirements for the scalable enhancement of HEVC
Draft use cases for the scalable enhancement of HEVC
Exploration Experiments for HDR and Wide Colour Gamut Content Distribution
HEVC RExt Test Model 1
HEVC Verification Test Plan
HEVC Verification Test Plan Draft 2
High Efficiency Video Coding (HEVC) Encoder Description v 13 – (HM13)
High Efficiency Video Coding (HEVC) Test Model 9 (HM 9) Encoder Description
High Efficiency Video Coding (HEVC) Test Model 9 (HM 9) Encoder Description
ISO/IEC 23008-2:201x/PDAM2 Multiview Extensions
Joint Call for Proposals for coding of screen content
Joint Call for Proposals on Scalable Video Coding Extensions of High Efficiency Video Coding (HEVC)
List of stereo and 3D sequences considered
N14510, Draft Requirements and Explorations for HDR / WCG Content Distribution and Storage
Report of Results of the Joint Call for Proposals on Scalable High Efficiency Video Coding (SHVC)
Requirements and Use Cases for HDR and WCG Content Coding
Requirements for HEVC image sequences
Requirements for an extension of HEVC for coding of screen content
Requirements for still image coding using HEVC
Requirements of the scalable enhancement of HEVC
Scalable HEVC (SHVC) Test Model 4 (SHM 4)
Study Text of ISO/IEC DIS 23008-2 High Efficiency Video Coding
Study text of ISO/IEC 23008-2:201x/DAM1 HEVC Range Extensions
Study text of ISO/IEC 23008-2:201x/DAM2 HEVC Multiview Extensions
Study text of ISO/IEC 23008-2:201x/PDAM3 HEVC Scalable Extensions
Test Model 6 of 3D-HEVC and MV-HEVC
Test Results of Call for Evidence (CfE) for HDR and WCG Video Coding
Test sequences and anchor generation for HDR and Wide Colour Gamut Content Distribution
Text of ISO/IEC 23008-2:201x/PDAM1 Range Extensions
Use cases of the scalable enhancement of HEVC
Working Draft 2 of 3D-HEVC
Working Draft of HEVC Full Range Extensions
3D Audio
Call for Proposals on 3D Audio
Draft Call for Proposals on 3D Audio
Draft MPEG Audio CE methodology for 3D Audio work
Encoder Input Format for MPEG-H 3D Audio
Submission and Evaluation Procedures for 3D Audio
Submission and Evaluation Procedures for 3D Audio Phase 2
Timeline and Requirements for MPEG-H Audio
Workplan on 3D Audio
MMT Reference Software
HEVC Reference Software
3D Audio Reference Software
MMT Conformance Testing
MPEG Media Transport FEC Codes
Text of ISO/IEC DIS 23008-10 MPEG Media Transport FEC Codes
3D Audio conformance testing
HEVC Conformance testing
Study text of ISO/IEC DIS 23008-8 HEVC Conformance
Working Draft of HEVC Conformance
Image File Format
Text of ISO/IEC CD 23008-12 Image File Format
MMT Composition Information
Text of ISO/IEC DIS 23008-11 MPEG Media Transport CI
MMT Implementation Guidelines
MPEG-DASH
Media presentation description and segment formats
Requirements on HTTP Streaming of MPEG Media
Text of ISO/IEC 23009-1:2012 DAM 1 Support for Event Messages and Extended Audio Channel Configuration
Text of ISO/IEC 23009-1:201x DCOR 1
Text of ISO/IEC 23009-1:201x PDAM 1 High Profile and Availability Time Synchronization
WD of ISO/IEC 23009-1 AMD 2
Reference software and conformance
Implementation guidelines
WD of ISO/IEC 23009-3/AMD 1 DASH Implementation Guidelines
Format Independent Segment encryption and authentication
DASH with Server Push and WebSockets
Delivery of CMAF content with DASH
Server and network assisted DASH (SAND)
Session based DASH operation
MPEG-I
Carriage of Point Cloud Data
Geometry-based Point Cloud Compression
Immersive Audio
Immersive Media Metadata
Immersive Media Metrics
Implementation Guidelines for Network-based Media Processing
Network Based Media Processing
Call for Proposals on Network-Based Media Processing
Use cases and requirements for NBMP (v4)
Omnidirectional Media Format
Point Cloud Compression
Call for Proposals for Point Cloud Compression
Call for Proposals for Point Cloud Compression V2
Draft Call for Proposals for Point Cloud Compression (v2)
Draft Call for Proposals for Point Cloud Compression
Draft Dataset for Point Cloud Coding
Draft Test Conditions and Complementary Test material
Evaluation criteria for PCC
Requirements for Point Cloud Compression
Use cases for Point Cloud Compression
User manual for the PCC Rendering software
Technical Report on Immersive Media
MPEG-CICP
Coding independent media description code points
Systems
Usage of video signal type code points
MPEG-G
API for Genomic Information Representation
Conformance
Genomic Annotation Representation
Genomic Information Representation
Reference Software
Transport and Storage of Genomic Information
MPEG-5
Essential Video Coding
Low Complexity Video Coding Enhancements
Call for Proposals for Low Complexity Video Coding Enhancements
Title Requirements for Low Complexity Video Coding Enhancements
MPEG-MAR
Mixed and Augmented Reality Reference Model
Text of proposed CD of MAR Reference Model
Exploration
3D Printing
Adaptive delivery and access to Immersive Media
Additional Support for Coding of Interlaced Video in HEVC
Requirements and use cases on interlace video
Audio Dynamic Range Control
Call for Proposals on Dynamic Range Control technology
Audio Synchronization
Data Compression
Future Video Coding
Presentations of the Brainstorming Session of the Future of Video Coding Standardization
Request for contributions on future video compression technology
Hybrid Natural/Synthetic Scene Container
Immersive Video
Call for Evidence on Free-Viewpoint Television: Super-Multiview and Free Navigation
MPEG-21 Based Smart Contracts
Multimedia Preservation
Call for Proposals on Multimedia Preservation Description Information (MPDI)
Draft Call for Proposals on Multimedia Preservation Description Information (MPDI)
Multimedia Preservation Description Information Requirements Document
Multimedia Preservation Description Information Requirements Document, Version 3
WD 3.0 of ISO/IEC 23000-15 Multimedia Preservation Application Format
Uniform signalling for timeline alignment
Proposed Exploration of Uniform signalling for timeline alignment
Seminar on Media Synchronization for Hybrid Delivery
Video Coding for Machines
Video Coding for Machines
Call for Proposals on Neural Network Compression
Internet of Media Things
Internet of Media Things and Wearables
IoMT Discovery and Communication API
IoMT Reference Software and Conformance
Media data formats and API
Summary on MPEG-I Visual Activities on 6DoF
Summary on MPEG-I Visual Activities on 6DoF
Technologies
Media coding
Synthetic Audio Coding
3D Audio Coding
3-D Video Coding
2D Graphics Coding
2-d video coding
3D Graphics Coding
Audio Coding
Streaming Text Format
Music Coding
Mixed Reality Coding
Font Coding
Non media coding
Application Formats
Decoder Representation
Media Context and Control
User Interaction
Composition coding
Scene Adaptation
Media Presentation
Media Composition
Description Coding
Description Profiles
Audio Description
Description Query
Description Technologies
Video Description
Multimedia Description
Systems Support
Signaling
Multiplexing and Synchronisation
IPMP
Rights Expression Technologies
Persistent Association Technologies
Identification Technologies
Access Technologies
Digital Item
Digital Item Technologies
Digital Item Schemas
Digital Item Presentation
Event Reporting
Resources in Digital Items
Transport and File Format
Media File Formats
Transport of Media Streams
Multimedia Architectures
Application Programming Interfaces
Models
Services
Terminal Architecture
Software architectures
Generic Media Technologies
XML Technologies
Signal Processing Technologies
Bitstream Technologies
Reference software
MPEG-M Reference Software
MPEG-U Reference Software
MPEG-H Reference Software
MPEG-E Reference Software
MPEG-D Reference Software
MPEG-V Reference Software
MPEG-C Reference Software
MPEG-B Reference Software
MPEG-1 Reference Software
MPEG-2 Reference Software
MPEG-A Reference Software
MPEG-7 Reference Software
MPEG-4 Reference Software
MPEG-21 Reference Software
Reference hardware
MPEG-4 Reference Hardware
Conformance Testing
MPEG-2 Conformance
MPEG-1 Conformance
MPEG-21 Conformance
MPEG-4 Conformance
MPEG-U Conformance
MPEG-V Conformance
MPEG-C Conformance
MPEG-B Conformance
MPEG-A Conformance
MPEG-7 Conformance
MPEG-E Conformance
MPEG-D Conformance
MPEG-H Conformance
MPEG-M Conformance
Maintenance
MPEG-V Maintenance
MPEG-U Maintenance
MPEG-M Maintenance
MPEG-H Maintenance
MPEG-E Maintenance
MPEG-2 Maintenance
MPEG-21 Maintenance
MPEG-1 Maintenance
MPEG-4 Maintenance
MPEG-7 Maintenance
MPEG-D Maintenance
MPEG-C Maintenance
MPEG-B Maintenance
MPEG-A Maintenance
Meetings
MPEG 130 - Alpbach
MPEG 129 - Brussels
MPEG 128 - Geneva
MPEG 127 - Gothenburg
MPEG 126 - Geneva
MPEG 125 - Marrakesh
MPEG 124 - Macao
MPEG 123 - Ljubljana
MPEG 122 - San Diego
MPEG 121
MPEG 120 - Macau
MPEG 119 - Torino
MPEG 118 - Hobart
MPEG-117 - Geneva
MPEG 116 - Chengdu
MPEG 115 - Geneva
MPEG 114 - San Diego
MPEG 113 - Geneva
MPEG 112 - Warsaw
MPEG 111 - Geneve
MPEG 110 - Strasbourg
MPEG 109 - Sapporo
MPEG 108 - Valencia
MPEG 107 - San José
MPEG 106 - Geneva
MPEG 105 - Vienna
MPEG 104 - Incheon
MPEG 103 - Genève
MPEG 102 - Shanghai
MPEG 101 - Stockholm
MPEG 100 - Genève
MPEG 99 - San José
MPEG 98 - Geneva
MPEG 97 - Torino
MPEG 96 - Geneva
MPEG 95 - Daegu
MPEG 94 - Guangzhou
MPEG 93 - Geneva
MPEG 92 - Dresden
MPEG 91 - Kyoto
MPEG 90 - Xi'an
MPEG 89 - London
MPEG 88 - Maui, HI
MPEG 87 - Lausanne
MPEG 86 - Busan
MPEG 85 - Hannover
MPEG 84 - Archamps
MPEG 83 - Antalya
MPEG 12 - Santa Clara
MPEG 22 - Sydney
MPEG 8 - Kurihama-Osaka
MPEG 8 - Kurihama-Osaka
MPEG 82 - Shenzhen
MPEG 81 - Lausanne
MPEG 80 - San José
MPEG 79 - Marrakech
MPEG 78 - Hangzhou
MPEG 77 - Klagenfurt
MPEG 76 - Montreux
MPEG 75 - Bangkok
MPEG 74 - Nice
MPEG 73 - Poznań
MPEG 72 - Busan
MPEG 71 - Hong Kong
MPEG 70 - Palma de Mallorca
About MPEG
Who we are
Terms of Reference
Press releases
MPEG Basics
Videos
Visions
FAQ
Events
MP20 workshop on standards and plans for immersive media
MPEG Workshop on Immersive Services Roadmap
OMAF Developers' Day
Workshop on MPEG-G - Shenzhen (CN)
Workshop on Processing of Genomic Information: From Standards to Deployment
Workshop on coding technologies for immersive audio/visual experiences
Workshop on coding technologies for immersive audio/visual experiences
Workshop on standard coding technologies for immersive visual experiences
MPEG outreach
MPEG-M: Multimedia Service Platform Technologies
Recent MPEG Standards for Future Media Ecosystems
White papers
Ad hoc groups
Liaisons
An MPEG meeting
Contact point
Papers and books on MPEG
Patents
How to join
Home
Standards
MPEG-4
Audio
Search form
Search
Report on the MPEG-4 audio NADIB verification tests
Standard:
MPEG-2
Part:
Audio
Files:
Package icon
w2276.zip
Published in meeting:
MPEG 44 - Dublin
AltStyle
によって変換されたページ
(->オリジナル)
/
アドレス:
モード:
デフォルト
音声ブラウザ
ルビ付き
配色反転
文字拡大
モバイル