Axis Communications 232d+ user manual Frame rates - Motion JPEG, Frame rates - MPEG-4, Bandwidth

AXIS 231D+/232D+ - Technical Specifications 59

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

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

*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