Axis Communications 232D, 231D user manual Frame rates Motion Jpeg, Frame rates MPEG-4, Bandwidth

AXIS 231D/232D - Technical Specifications 55

Frame rates - Motion JPEG

The following test results show the frame rates in frames/second (fps) for Motion JPEG streams from the AXIS 231D/232D, using a compression level of 50%. Note that these values are guidelines only - actual values may vary.

	fps (PAL)	fps (NTSC)
4CIF	25	30
2CIF expanded	25	30
2CIF	25	30
CIF	25	30
QCIF	25	30

Frame rates - MPEG-4

The following test results show the frame rates in frames/second (fps) for MPEG-4 streams from the AXIS 231D/232D. 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*

	fps (PAL)	fps (NTSC)
4CIF	17	21
2CIF expanded	17	21
2CIF	25	30
CIF	25	30
QCIF	25	30

*Note that setting the GOV structure to use “I-frames only” will increase the frame rate.

Bandwidth

As there are many factors affecting bandwidth, it is very difficult to predict the required amounts. The settings that affect bandwidth are:

•the image resolution

•the image compression

•the frame rate

•the MPEG-4 object type

•the MPEG-4 GOV structure