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MPEG4 AND JPEG FILE PLAYING
MPEG4 is the audio standard published by MPEG (Moving Pictures Experts Group) in
November,1998. As the discrepant parts between frames of picture are only processed and
the same parts are deleted, the data number are greatly decreased. The most distinct feature
of MPEG4 is the high compression and clear imaging. Furthermore, MPEG4 provides elastic
specifications to adjust the stream according to the used requirements. The larger stream
can be used when collecting private films; and the small stream can be used in network
transferring, which makes MPEG4 use widely.
JPEG (Joint Photographic Experts Group) is the most widely used picture compression and
storage format today. Utilizing high efficiency compression algorithm, JPEG compresses the
original picture 15 to 20 times with excellent picture quality. JPEG is featuring small size
data, convenient application and supported by most picture processing software, so it is very
fit to store photos.
The strong decoding capability of this unit can decode and play the files with the above
formats. In the course of playing, an operation menu will appear and its construction is
shown as follows.
00:00 00:00
004/369
\PIC\
Du000
Du001
Du002
..
1
2
3
4
5
6
1. State window
Display the current state
information.
2. DIR window
Display the current path.
3. File window
Display the current path's
file.
4. Scroll bar window
Indicate the current file's
position.
5. Preview window
JPEG image preview.
6. Information window
Display the current operation
prompts.
The state information in state window is as follows:
4
00:57
002/073
03:31
128
2
1
3
5
6
1. Elapsed playback time
2. Total playback time
3. The audio bit rate (generally the bit rate is 128kbps,
sometimes it is VBR.)
4. Current playback mode indicator
5. Track indicator
6. Dynamic frequency spectrum indicator
DVD OPERATION
