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57 lines
2.5 KiB
Plaintext
57 lines
2.5 KiB
Plaintext
Oh! Multicast Video Scanner
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You can find free video streaming multicast ip addresses with Oh! Multicast
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Video Scanner.
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omvs scans all multicast ip addresses the user specifies and if omvs finds
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something, omvs tries to decode it with gstreamer and saves it as png file in
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the output directory. There are many cases omvs finds something but png file is
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not stored. Such as, the video is scrambled(encrypted, not free), multicasting
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data doesn't contain video(audio only, data only), gstreamer doesn't recognize
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it(unknown codec), etc. If you increase the number of jobs with "-j" command
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line option, you can scan faster. However, You need take caution, because it
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can cause network congestion.
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As omvs uses libpcap to capture raw packet, root privilege is required to run
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omvs.
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Run "./configure ; make" to build omvs. Run "./omvs" with scanning multicast ip
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addresses.
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e.g.)
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-------------------------------------------------------------------------------
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$ sudo ./omvs 233.19.187.192/30 233.19.187.244 233.19.187.1
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[0x21be1e0] start scanning 233.19.187.192
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[0x21be1e0] trying to save udp://233.19.187.192:5000 to omvs_out/233.19.187.192-5000.png
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[0x21be1e0] finish scanning 233.19.187.192
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[0x21be1e0] start scanning 233.19.187.193
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[0x21be1e0] trying to save udp://233.19.187.193:5000 to omvs_out/233.19.187.193-5000.png
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[0x21be1e0] finish scanning 233.19.187.193
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[0x21be1e0] start scanning 233.19.187.194
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[0x21be1e0] trying to save udp://233.19.187.194:5000 to omvs_out/233.19.187.194-5000.png
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[0x21be1e0] finish scanning 233.19.187.194
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[0x21be1e0] start scanning 233.19.187.195
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[0x21be1e0] trying to save udp://233.19.187.195:5000 to omvs_out/233.19.187.195-5000.png
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[0x21be1e0] finish scanning 233.19.187.195
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[0x21be1e0] start scanning 233.19.187.244
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[0x21be1e0] trying to save udp://233.19.187.244:5000 to omvs_out/233.19.187.244-5000.png
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[0x21be1e0] finish scanning 233.19.187.244
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[0x21be1e0] start scanning 233.19.187.1
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[0x21be1e0] finish scanning 233.19.187.1
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$ ls -l omvs_out
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total 1960
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-rw-r--r-- 1 root root 545742 Jan 23 21:55 233.19.187.193-5000.png
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-rw-r--r-- 1 root root 477971 Jan 23 21:55 233.19.187.194-5000.png
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-rw-r--r-- 1 root root 398304 Jan 23 21:55 233.19.187.195-5000.png
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-rw-r--r-- 1 root root 574233 Jan 23 21:55 233.19.187.244-5000.png
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$
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-------------------------------------------------------------------------------
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For more detail, please run omvs --help.
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This program is distributed under GPLv3. If you can't conform to GPLv3,
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please contact me to discuss about other license options.
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Written by Taeho Oh <ohhara@postech.edu>
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http://ohhara.sarang.net/omvs
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