User`s manual

62
AXIS 241Q/241S - Technical specifications
Frame rates - Motion JPEG
The following test results show the frame rates in frames/second (fps) for Motion JPEG
streams from the AXIS 241Q/241S, using a compression level of 50%. Note that these
values are guidelines only - actual values may vary.
Frame rates - MPEG-4
The following test results show the frame rates in frames/second (fps) for MPEG-4 streams
from the AXIS 241Q/241S. Note that these values are guidelines only - actual values may
vary.
The MPEG-4 test conditions:
• Compression level = 50%
• Video Object Type = Advanced Simple
• GOV structure = IP*
Note that setting the GOV structure to use “I-frames only” will increase the frame rate.
* The GOV structure can take two different forms; I and IP. The I-structure sends complete images (I-images)
whereas the IP-structure mostly sends the differences compared with the previous image (P-images) and only a few
I-images. The IP-structure requires much less bandwidth than the I-structure.
AXIS 241Q/241S
fps (NTSC/PAL)
1 channel
fps (NTSC/PAL)
4 channels
4CIF 30/25 10/8
2CIF expanded 30/25 15/13
2CIF 30/25 27/22
CIF 30/25 30/25
QCIF 30/25 30/25
AXIS 241Q/241S
fps (NTSC/PAL)
1 channel
fps (NTSC/PAL)
4 channels
4CIF 21/17 4/3
2CIF expanded 21/17 5/4
2CIF 30/25 10/9
CIF 30/25 20/17
QCIF 30/25 30/25