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Image, Audio, and Video Extenders Administration and Programming


Image, audio, and video formats

The following table lists the formats in which you can store, retrieve, or update image, audio, and video objects. For image objects only, you can have the Image Extender convert the format of the image as it stores, retrieves, or updates it. (Audio and video object formats cannot be converted when stored, retrieved, or updated.)

The Read and Write columns in the table indicate which formats can be read and which formats can be converted when written. When the entry in the Read column in the table is x, the corresponding object format can be used when storing, retrieving, or updating. When the entry in the Write column is x, an object (image only) can be converted to the corresponding format when stored, retrieved, or updated. For example, an image in BMP format can be converted to a GIF format when stored, retrieved, or updated. An image in JPG format can be converted to TIF format. But an image in TIF format cannot be converted to JPG format.

Although listed in the table in uppercase, format specifications in store, retrieve, or update requests are not case sensitive. For example, the specifications GIF, gif, and Gif are equivalent.

Table 4. Formats that can be processed by the DB2 extenders
Format Description Read Write
Image Formats
_IM PS/2 Audio Video Connection (AVC) x
BMP OS/2 - Microsoft Windows bitmap1 x x
EPS Encapsulated PostScript
x
EP2 Encapsulated level 2 PostScript
x
GIF Compuserve GIF89a (including animated GIFs2) and 87 x x
IMG IOCA image x x
IPS Brooktrout FAX card file x x
JPG JPEG3 (JFIF format) x
PCX PC paint file (grayscale only) x x
PGM Portable gray map (from PBMPLUS) x x
PS PostScript
x
PSC Compressed PostScript image
x
PS2 PostScript level 2 (color)
x
TIF All TIFF 5.0 formats x x
YUV Digital video for YUV x x
Audio formats
AIF or AIFF Audio Interchange File Format x
AIFFC Audio Interchange File Format Compressed x
AU Sun audio file format x
MIDI Musical Instrument Digital Interface x
MPG1 or MPEG1 Moving Pictures Expert Group 1 x
WAV or WAVE Wave x
Video formats
AVI Audio/Video Interleaved x
MPG1 or MPEG1 Motion Picture Coding Expert Group 1 x
MPG2 or MPEG2 Motion Picture Coding Expert Group 2 x
QT Quicktime (AVI) x


Footnotes:

1
Read is supported for OS/2 Version 1, OS/2 Version 2, Windows Version 2, Windows Version 3, and Windows NT BMP format. Write is supported for OS/2 Version 1 BMP format.

2
The DB2 Image Extender stores attribute information for only the first image in the animated GIF file.

3
Support uses software that is based in part on the work of the Independent JPEG Group.


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