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(redirect to w_scan_cpp. Who still really want it, should know about newer and maintained version.) |
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{{lowercase|w_scan}} |
{{lowercase|w_scan}} |
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''w_scan'' is a small command line utility used to perform [[Frequency scan|frequency scan]]s for [[DVB]] and [[ATSC]] transmissions. It is not included in [[LinuxTV dvb-apps]], but complements the two [[Frequency scan|frequency scanning]] utilities available through [[LinuxTV dvb-apps]], [[Dvbscan|dvbscan]] and [[Scan|scan]]. It is meanwhile replaced by the newer tool [[w_scan_cpp]] with similar syntax. |
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''w_scan'' is capable of directly creating channels.conf files as well as initial tuning data for [[Scan|scan]]. |
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==Obtaining w_scan== |
==Obtaining w_scan== |
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The last ''w_scan'' version can be still obtained [https://www.gen2vdr.de/wirbel/w_scan_cpp/index2.html here]. There will be no further updates. |
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==Documentation== |
==Documentation== |
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''w_scan'' |
Detailed information can be found in the ''w_scan'' man page (i.e. from a console, run <code>man w_scan</code>). Additionally, running ''w_scan'' with the -h parameter will produce an output that provides a summary of it's main command line options. |
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<pre>w_scan [options...] >> channels.conf</pre> |
<pre>w_scan [options...] >> channels.conf</pre> |
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If not specified w_scan defaults to do a scan for European terrestrial DVB-T with output format [http://www.cadsoft.de/vdr/ VDR channels.conf]. |
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{| border=1 cellpadding=1 cellspacing=0 |
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|- bgcolor=#efefef |
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!Parameter |
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!Description |
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|- |
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| '''-f Type'''|| |
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'''Frontend Type'''<br> |
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a = ATSC (North America, cable and terrestrial)<br> |
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c = DVB-C (Europe, cable)<br> |
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t = DVB-T (Europe, terrestrial = default)<br> |
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''NOTE: ATSC support needs w_scan >= 20080815'' |
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|- |
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| '''-A Type'''|| |
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'''ATSC Type''' (ignored for DVB-C and DVB-T)<br> |
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1 = VSB ("Over-the-Air)"<br> |
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2 = QAM annex B ("cable TV")<br> |
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3 = both of them |
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|- |
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| '''-X'''|| |
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czap/tzap/xine channels.conf<br> |
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|- |
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| '''-x'''|| |
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"initial tuning data" for [[Scan]] |
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|- |
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| '''-k'''|| |
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channels.dvb for [[Kaffeine]] |
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|} |
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''Experts'' or ''experienced users'' may use some of the other options, but this is not recommended.<br> |
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{{Note|w_scan searches ''/dev/dvb/adapterX/frontendY'' for DVB/ATSC cards matching to option "-f", therefore specifying the adapter "-a XX" is not recommended.}} |
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==Examples== |
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NOTE: ATSC support needs w_scan >= 20080815 |
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''As w_scan was superceeded quite a long time ago, pls refer to the [[w_scan_cpp]] page for it's similar syntax.'' |
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===Scanning ATSC VSB (North America, Over-the-Air)=== |
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$ w_scan -fa -A1 -X |
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===Scanning ATSC QAM annex B (North America, digital cable TV)=== |
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$ w_scan -fa -A2 -X |
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===Scanning DVB-T (Europe, Over-the-Air)=== |
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$ w_scan -ft -X |
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===Scanning DVB-C (Europe, digital cable TV)=== |
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$ w_scan -fc -X |
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===Generating dvbscan tuning data=== |
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Exactly as above, just specify output format dvbscan with "-x": |
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$ w_scan -f <FRONTEND_TYPE> -x >''cc-Ttttt'' |
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==Also See== |
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If you choose to create an initial scan file (and you know the name of your local transmitter or cable provider), you can send the resulting file to the [http://linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb dvb mailing list] after checking that it hasn't already been posted or added to the [http://linuxtv.org/hg/dvb-apps/file/tip/util/scan/ scan directory in the dvb-apps repository]. |
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* [[Frequency_scan#Comparison_of_DVB_frequency_scanning_commandline_utilities|Comparison of the scanning utilities]]. |
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* [https://www.mankier.com/1/w_scan man w_scan] |
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* [[scan]] |
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* [[dvbscan]] |
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==External Links== |
==External Links== |
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* [[w_scan_cpp|see w_scan_cpp]] |
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* [http://wirbel.htpc-forum.de/w_scan/index2.html Homepage] |
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* [http://64.233.179.104/translate_c?hl=en&langpair=de%7Cen&u=http://wirbel.htpc-forum.de/w_scan/index2.html English translation via Google] |
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* [http://edafe.org/vdr/w_scan/ English howto by edafe] |
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[[Category:Apps & Utilities]] |
[[Category:Apps & Utilities]] |
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Latest revision as of 10:21, 8 August 2021
w_scan is a small command line utility used to perform frequency scans for DVB and ATSC transmissions. It is not included in LinuxTV dvb-apps, but complements the two frequency scanning utilities available through LinuxTV dvb-apps, dvbscan and scan. It is meanwhile replaced by the newer tool w_scan_cpp with similar syntax.
w_scan is capable of directly creating channels.conf files as well as initial tuning data for scan.
Obtaining w_scan
The last w_scan version can be still obtained here. There will be no further updates.
Documentation
Detailed information can be found in the w_scan man page (i.e. from a console, run man w_scan). Additionally, running w_scan with the -h parameter will produce an output that provides a summary of it's main command line options.
w_scan [options...] >> channels.conf
In general, when using w_scan you should at least specify three parameters: frontend type, country/satellite and output format.
As w_scan was superceeded quite a long time ago, pls refer to the w_scan_cpp page for it's similar syntax.