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diff --git a/Documentation/media/dvb-drivers/faq.rst b/Documentation/media/dvb-drivers/faq.rst deleted file mode 100644 index 52f153d18278..000000000000 --- a/Documentation/media/dvb-drivers/faq.rst +++ /dev/null @@ -1,169 +0,0 @@ -.. SPDX-License-Identifier: GPL-2.0 - -FAQ -=== - -.. note:: - - This documentation is outdated. Please check at the DVB wiki - at https://linuxtv.org/wiki for more updated info. - -Some very frequently asked questions about linuxtv-dvb - -1. The signal seems to die a few seconds after tuning. - - It's not a bug, it's a feature. Because the frontends have - significant power requirements (and hence get very hot), they - are powered down if they are unused (i.e. if the frontend device - is closed). The dvb-core.o module parameter "dvb_shutdown_timeout" - allow you to change the timeout (default 5 seconds). Setting the - timeout to 0 disables the timeout feature. - -2. How can I watch TV? - - The driver distribution includes some simple utilities which - are mainly intended for testing and to demonstrate how the - DVB API works. - - Depending on whether you have a DVB-S, DVB-C or DVB-T card, use - apps/szap/szap, czap or tzap. You must supply a channel list - in ~/.[sct]zap/channels.conf. If you are lucky you can just copy - one of the supplied channel lists, or you can create a new one - by running apps/scan/scan. If you run scan on an unknown network - you might have to supply some start data in apps/scan/initial.h. - - If you have a card with a built-in hardware MPEG-decoder the - drivers create a video4linux device (/dev/v4l/video0) which - you can use to watch TV with any v4l application. xawtv is known - to work. Note that you cannot change channels with xawtv, you - have to zap using [sct]zap. If you want a nice application for - TV watching and record/playback, have a look at VDR. - - If your card does not have a hardware MPEG decoder you need - a software MPEG decoder. Mplayer or xine are known to work. - Newsflash: MythTV also has DVB support now. - Note: Only very recent versions of Mplayer and xine can decode. - MPEG2 transport streams (TS) directly. Then, run - '[sct]zap channelname -r' in one xterm, and keep it running, - and start 'mplayer - < /dev/dvb/adapter0/dvr0' or - 'xine stdin://mpeg2 < /dev/dvb/adapter0/dvr0' in a second xterm. - That's all far from perfect, but it seems no one has written - a nice DVB application which includes a builtin software MPEG - decoder yet. - - Newsflash: Newest xine directly supports DVB. Just copy your - channels.conf to ~/.xine and start 'xine dvb://', or select - the DVB button in the xine GUI. Channel switching works using the - numpad pgup/pgdown (NP9 / NP3) keys to scroll through the channel osd - menu and pressing numpad-enter to switch to the selected channel. - - Note: Older versions of xine and mplayer understand MPEG program - streams (PS) only, and can be used in conjunction with the - ts2ps tool from the Metzler Brother's dvb-mpegtools package. - -3. Which other DVB applications exist? - - http://www.cadsoft.de/people/kls/vdr/ - Klaus Schmidinger's Video Disk Recorder - - http://www.metzlerbros.org/dvb/ - Metzler Bros. DVB development; alternate drivers and - DVB utilities, include dvb-mpegtools and tuxzap. - - http://sourceforge.net/projects/dvbtools/ - Dave Chapman's dvbtools package, including - dvbstream and dvbtune - - http://www.linuxdvb.tv/ - Henning Holtschneider's site with many interesting - links and docs - - http://www.dbox2.info/ - LinuxDVB on the dBox2 - - http://www.tuxbox.org/ and http://cvs.tuxbox.org/ - the TuxBox CVS many interesting DVB applications and the dBox2 - DVB source - - https://linuxtv.org/downloads - DVB Swiss Army Knife library and utilities - - http://www.nenie.org/misc/mpsys/ - MPSYS: a MPEG2 system library and tools - - http://mplayerhq.hu/ - mplayer - - http://xine.sourceforge.net/ and http://xinehq.de/ - xine - - http://www.mythtv.org/ - MythTV - analog TV PVR, but now with DVB support, too - (with software MPEG decode) - - http://dvbsnoop.sourceforge.net/ - DVB sniffer program to monitor, analyze, debug, dump - or view dvb/mpeg/dsm-cc/mhp stream information (TS, - PES, SECTION) - -4. Can't get a signal tuned correctly - - If you are using a Technotrend/Hauppauge DVB-C card *without* analog - module, you might have to use module parameter adac=-1 (dvb-ttpci.o). - -5. The dvb_net device doesn't give me any packets at all - - Run tcpdump on the dvb0_0 interface. This sets the interface - into promiscuous mode so it accepts any packets from the PID - you have configured with the dvbnet utility. Check if there - are any packets with the IP addr and MAC addr you have - configured with ifconfig. - - If tcpdump doesn't give you any output, check the statistics - which ifconfig outputs. (Note: If the MAC address is wrong, - dvb_net won't get any input; thus you have to run tcpdump - before checking the statistics.) If there are no packets at - all then maybe the PID is wrong. If there are error packets, - then either the PID is wrong or the stream does not conform to - the MPE standard (EN 301 192, http://www.etsi.org/). You can - use e.g. dvbsnoop for debugging. - -6. The dvb_net device doesn't give me any multicast packets - - Check your routes if they include the multicast address range. - Additionally make sure that "source validation by reversed path - lookup" is disabled: - -.. code-block:: none - - $ "echo 0 > /proc/sys/net/ipv4/conf/dvb0/rp_filter" - -7. What the hell are all those modules that need to be loaded? - - For a dvb-ttpci av7110 based full-featured card the following - modules are loaded: - - - videodev: Video4Linux core module. This is the base module that - gives you access to the "analog" tv picture of the av7110 mpeg2 - decoder. - - - v4l2-common: common functions for Video4Linux-2 drivers - - - v4l1-compat: backward compatibility layer for Video4Linux-1 legacy - applications - - - dvb-core: DVB core module. This provides you with the - /dev/dvb/adapter entries - - - saa7146: SAA7146 core driver. This is need to access any SAA7146 - based card in your system. - - - saa7146_vv: SAA7146 video and vbi functions. These are only needed - for full-featured cards. - - - videobuf-dma-sg: capture helper module for the saa7146_vv driver. This - one is responsible to handle capture buffers. - - - dvb-ttpci: The main driver for AV7110 based, full-featured - DVB-S/C/T cards - |