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FWCONTROL(8) BSD System Manager's Manual FWCONTROL(8) NAME fwcontrol -- FireWire control utility SYNOPSIS fwcontrol [-u bus_num] [-prt] [-c node] [-d node] [-o node] [-s node] [-l file] [-f node] [-g gap_count] [-b pri_req] [-M mode] [-R filename] [-S filename] [-m EUI64 | hostname] DESCRIPTION The fwcontrol utility is designed to provide a way for users to access and control the FreeBSD FireWire subsystem. Without options, fwcontrol will output a list of devices that are/were connected to the bus. The following options are available: -u bus_num Specify the FireWire bus number to be operated on. -r Initiate bus reset. -t Show the topology map. -p Dump PHY registers. -c node Show the configuration ROM on the node. -d node Hex dump of the configuration ROM. -o node Send a link-on PHY packet to the node. -s node Write to the RESET_START register on the node. -l file Load hex dump file of the configuration ROM and parse it. -f node Force specified node to be the root node on the next bus reset. -g gap_count Broadcast gap_count by phy_config packet. -i pri_req Set the PRIORITY_BUDGET register on all supported nodes. -M mode Explicitly specify either dv or mpeg mode for the incoming stream. Only meaningful in case of and must precede the -R op- tion. If not specified, the program will try to guess. If you get an error complaining about "format 0x20", try to force the "mpeg" mode. -R filename Receive DV or MPEG TS stream and dump it to a file. Use Ctrl-C to stop the receiving. Some DV cameras seem not to send the stream if a bus manager exists. If you cannot get the stream, try the following commands: sysctl hw.firewire.try_bmr=0 fwcontrol -r The resulting file contains raw DV data excluding isochronous header and CIP header. It can be handled by libdv in the FreeBSD Ports Collection. Resulting MPEG TS stream can be played and sent over a network using the VideoLAN vlc tool in the FreeBSD Ports Collection. The stream can be piped directly to vlc, see EXAM- PLES. -S filename Send a DV file as isochronous stream. -m EUI64 | hostname Set default fwmem target. Hostname will be converted to EUI64 using eui64(5). FILES /dev/fw0.0 EXAMPLES Each DV frame has a fixed size and it is easy to edit the frame order. fwcontrol -R original.dv Receive a DV stream with DV camera attached. dd if=original.dv of=first.dv bs=120000 count=30 Get first 30 frames(NTSC). dd if=original.dv of=second.dv bs=120000 skip=30 count=30 Get second 30 frames(NTSC). cat second.dv first.dv | fwcontrol -S /dev/stdin Swap first and second 30 frames and send them to DV recorder. For PAL, replace "bs=120000" with "bs=144000". fwcontrol -R file.m2t Receive an MPEG TS stream from a camera producing MPEG transport stream. This has been tested with SONY HDR-FX1E camera that produces HD MPEG-2 stream at 25 Mbps bandwidth. To send the stream from the camera over the network using TCP (which sup- prisingly works better with vlc), you can use fwcontrol -R - | nc 192.168.10.11 9000 with netcat from ports and to receive the stream, use nc -l -p 9000 | vlc - To netcast via UDP, you need to use buffer program from ports, since vlc is not fast enough to read UDP packets from buffers and thus it experi- ences dropouts when run directly. The sending side can use fwcontrol -R - | nc 192.168.10.11 9000 and to receive the stream, use nc -l -u -p 9000 | buffer -s 10k -b 1000 -m 20m -p 5 | vlc - For more information on how to work with vlc see its docs. SEE ALSO firewire(4), fwe(4), fwip(4), fwohci(4), sbp(4), mplayer(1), vlc(1) HISTORY The fwcontrol utility first appeared in FreeBSD 5.0. AUTHORS Hidetoshi Shimokawa <simokawa@FreeBSD.org> Petr Holub <hopet@ics.muni.cz> - MPEG TS mode. BUGS This utility is still under development and provided for debugging pur- poses. Especially MPEG TS reception support is very rudimental and sup- ports only high-bandwidth MPEG-2 streams (fn field in CIP header equals 3). BSD October 30, 2007 BSD
NAME | SYNOPSIS | DESCRIPTION | FILES | EXAMPLES | SEE ALSO | HISTORY | AUTHORS | BUGS
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