JEITA CP-3451
(2)
4.7.3.
Interoperability Structure of APP2 in Compressed Data................................................................. 65
4.8.
Data Description ..................................................................................................................................... 68
4.8.1.
Stipulations on Compressed Image Size ........................................................................................ 68
4.8.2.
Stipulations on Thumbnails ............................................................................................................. 71
4.8.3.
File Name Stipulations .................................................................................................................... 71
4.8.4.
Byte Order Stipulations ................................................................................................................... 71
5.
Exif Audio File Specification .......................................................................................................................... 72
5.1.
Outline of the Exif Audio File Specification ............................................................................................ 72
5.2.
Format Version ....................................................................................................................................... 72
5.3.
Definition of Terms.................................................................................................................................. 72
5.4.
Specifications Relating to Audio Data .................................................................................................... 74
5.4.1.
Sampling Frequency ....................................................................................................................... 74
5.4.2.
Bit Size ............................................................................................................................................ 74
5.4.3.
Channels ......................................................................................................................................... 74
5.4.4.
Compression Schemes ................................................................................................................... 74
5.5.
Basic Structure of Audio Data ................................................................................................................ 74
5.5.1.
Basic Structure of WAVE Form Audio Files .................................................................................... 74
5.5.2.
Basic Structure of PCM Audio Data................................................................................................ 80
5.5.3.
Basic Structure of µ-Law Audio Data .............................................................................................. 83
5.5.4.
Basic Structure of IMA-ADPCM Audio Data ................................................................................... 84
5.6.
Chunks Used .......................................................................................................................................... 88
5.6.1.
WAVE Form Audio File Basic Chunks ............................................................................................ 88
5.6.2.
LIST Chunk and INFO List .............................................................................................................. 89
5.6.3.
Chunks for Attribute Information Specific to Exif Audio Files.......................................................... 93
5.7.
Data Description ..................................................................................................................................... 97
5.7.1.
File Naming Stipulation ................................................................................................................... 97
5.7.2.
Typical Exif Audio File ..................................................................................................................... 97
Normative References ........................................................................................................................................ 100
Annex A
Image File Description Examples ..................................................................................................... 101
A.1
Uncompressed RGB File...................................................................................................................... 101
A.2
Uncompressed YCbCr File................................................................................................................... 104
A.3
JPEG Compressed (4:2:2) File ............................................................................................................ 108
A.4
JPEG Compressed (4:2:0) File .............................................................................................................112
Annex B
Audio File Description Examples ...................................................................................................116
B.1
PCM Audio Data....................................................................................................................................116
B.2
µ-Law Audio Data..................................................................................................................................118
B.3
IMA-ADPCM Audio Data ...................................................................................................................... 120
