59
Command Syntax Examples for
A320 Resource Socket Services
instance of the service can be run
simultaneously.
telnet
Command control, mainly for manual
typing. Typical clients are the standard
telnet command on a PC or teraterm.
FTP
File transfer to/from the camera using
FTP client software on a PC. Typical
clients are the standard FTP command on
a PC or WS_FTP.
http
Web server. Typical clients are Microsoft
Internet Explorer and Firefox.
CIFS
PC network le access service. This
service makes it possible to map a drive
on the PC to the camera le system. The
intended client software is built into all
relevant Windows versions. By default,
only the image folders are accessible in
this way. To access the whole ash le
system, mount the xxx.xxx.xxx.xxx/root$
drive.
FLIR Resource Socket
It is possible to directly read and write
nodes of the software resource tree from
a PC. Standard sockets are used, but there
are no standard client programs available.
Image Streaming
Set-up
The available streams are described and
presented using SDP (Session Description
Language, RFC 2327). The SDP content
is accessed using RTSP (Real Time
Streaming Protocol, RFC 2326).
The RTSP/DESCRIBE command lists the
available streams.
Table 1
MPEG4 Compressed video in three sizes
(640x480, 320x240, 160x128)
FCAM FLIR usage only.
Raw IR-signal or temperature linear IR-image
(two types) in two sizes (320×240,
160×120). The pixels are transferred in
network byte order (big endian).
The RTSP/SETUP command establishes an
RTP-based transport session using one of
the formats.
The RTSP/GET_PARAMETER command
gets the current framerate and format.
The RTSP/SET_PARAMETER command
sets the current framerate and format.
The RTSP/PLAY and RTSP/PAUSE
commands control the image stream.
The RTSP/TEARDOWN command closes
the transport session.
MPEG4
The MPEG4 streams use RTP/UDP/IP for
transport (RTP = Real time Transport
Protocol, RFC 1889). The MPEG bit stream
is packetized according to RFC 3016.
On the receiver side, FLIR supplies a
DirectShow component (Win32, PC
platform) which is able to receive the
MPEG4 bit stream. The component is
able to receive the MPEG4 bit stream
according to RFC 3016. The bit stream
is reassembled and forwarded as video
samples of FOURCC type MP4V. Several
MPEG4 decoders can be used, for
example from 3ivx ($7 per license) or a
free decoder (dshow). The DirectShow
component can be used by any
application that wishes to display the
MPEG4 video stream.
To Next Page
Loading...
Need help?
General
