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I created some patch with cctv.
OSD timestamp
Install:
patch -p0 -i cctv-timestamp.patch
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Configure:
./configure --enable-timestamp
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Usage:
mplayer tv:// -osd-timestamp-format "Camera1 %Y.%m.%d %H:%M:%S" -osd-timestamp-alignment 3 [options]
mencoder tv:// -osd-timestamp-format "Camera1 %Y.%m.%d %H:%M:%S" [options]
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Options:
- -osd-timestamp-format <format string> (eg.: "%Y-%m-%d %H:%M:%S Cam1")
- -osd-timestamp-alignment <alignment> (0: left-bottom corner, 1: left-up corner, 2: right-up corner, 3: right-bottom corner)
OSD timestamp samples:
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| -osd-timestamp-alignment 0 | -osd-timestamp-alignment 1 |
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| -osd-timestamp-alignment 2 | -osd-timestamp-alignment 3 |
Sharedmem
Install:
1. copy stream_sharedmem.c to stream/stream_sharedmem.c
2. copy video2mem/* to TOOLS/video2mem/*
3. patch -p0 -i cctv-sharedmem.patch
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Configure:
./configure --enable-sharedmem [options]
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Build:
make
cd TOOLS/video2mem
make
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Usage example:
mencoder tv:// -tv device=/dev/video0:width=720:height=576 [options] -smemid 1001 &
mencoder tv:// -tv device=/dev/video1:width=720:height=576 [options] -smemid 1002 &
mencoder tv:// -tv device=/dev/video2:width=720:height=576 [options] -smemid 1003 &
mencoder tv:// -tv device=/dev/video3:width=720:height=576 [options] -smemid 1004 &
mplayer { smem://1001 smem://1002 smem://1003 smem://1004 smem://1001,1002,1003,1004 -vf scale=360:288,tile=2:2 -fps 100 } -loop 0
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video2mem &
mplayer { smem://1001 smem://1002 smem://1003 smem://1004 smem://1001,1002,1003,1004 -vf scale=360:288,tile=2:2 -fps 100 } -loop 0
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Options:
- -smemid <shared memory id>
Shared display samples:
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| mplayer smem://1001,1002,1003,1004 -vf tile=2:2 |
Example video2mem config file:
tvfps = 5
tvinput = 1
tvfreq = 175.250
tvwidth = 640
tvheight = 480
tvformat = i420
[Cam1] // 1 camera
tvdevice = /dev/video0
tvsmemid = 1000
[Cam2]
tvdevice = /dev/video1
tvsmemid = 1001
[Cam3]
tvdevice = /dev/video2
tvsmemid = 1002
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Warning!
Maximum bandwidth of the 32bit PCI bus are about 120 fps. If you use 8 piece TV grab channels (eg.: 2 x IVC200 cards) then
it will be requred to limite for 15 (120/8) fps else the system can be crashed. Don't use 'mplayer/mencoder -tv fps=15' options! Please, use the video2mem.
I am sorry to say that my English knowledge isn't good.
Best regards! Ötvös Attila.
2006.10.30 | 
