Product data

VideoEdge NVR 4.1 Release Notes
20
8200-2735-07 D0
 Consecutive audio channel pairs should be configured with same codec otherwise RTSP will
send a 500 message. Pairing as as below {PCMU,PCMA},AAC.
 Due to the limitation in the Encoder firmware, the QCIF video stream uses the 172x112
resolution.
 “Pattern” cancel feature is not supported in a consistent manner. During “Pattern Cancel”,
pattern recording is cancelled. Upon reinitiating the recording on a pattern, old recorded
pattern sequence is overwritten.
 “Focus” and “Iris” support has been removed to maintain consistency, the “Auto Iris” feature
is also disabled.
 During Tilt having stopped at zero-tilt position in Dome camera where a flip of 180 degree
happens, might leads to the camera tilting continuously.
 It has been observed that CBR operation for MPEG-4 at lower frame-rate settings is quite
blocky and full of artifacts. To improve this, a constant quality settings operating as VBR is
found to be more effective. This has been incorporated in the solution.
 Due to the limitation in the encoder, simultaneous PT and Z operation using the encoder on a
camera is not supported.
 Due to the limitation in the encoder while operating in resolution QCIF, GOP settings 2 and in
CBR transmission mode, it is possible to observe up to 50% frame drops depending on the
complexity of input scene.
 Bit rate / Quality or any streaming parameter changes using the encoder webpage does not
reflect or take effect on the already started or existing streaming session. Either the encoder
needs to be restarted or the streaming session needs to be restarted for these parameters to
take effect.
NOTE: Please refer to AD 8-Channel IP Encoder (M) and (H) Release Notes for additional
information.