VDR Software Decoder Plugin: Difference between revisions
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Historically, [[VDR]] required an [[AV711x]] based DVB PCI card to decode Audio and Video and to render it's [[OSD]]. Since these cards are quite expensive and old-fashioned now |
Historically, [[VDR]] required an [[TI AV711x|AV711x]] based DVB PCI card (i.e. [[Full-featured Card|full featured card]]) to decode Audio and Video and to render it's [[OSD]]. Since these cards are quite expensive and old-fashioned now, so called [[budget]] cards dominate the market. They deliver the MPEG signal to the software and it's the main CPU that decodes it. See also [http://www.linuxtv.org/vdrwiki/index.php/Output_devices Output devices (VDR wiki)] for general information. |
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There are two answers for the questions: "So what software is there for budget cards in Linux?" |
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==Answer 1: VDR Software Decoder Plugin== |
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As far I know there have been two alternatives, the Xine-Plugin and the softdevice plugin ''(is this correct?)''. |
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The '''VDR Software Decoder Plugin''' is a plugin for [[VDR]]. See the [http://www.linuxtv.org/vdrwiki VDR Wiki] for more information. |
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''there is no public consensus whether the word "old-fashioned" is politically correct, all texts written here are based on the purely subjective experiences of the authors, feel free to add your very own personal opinions and make this text as objective as it can get only if many authors share their experiences. See the [[vdrwiki:Main_Page|VDR-Wiki]] for manuals and install instructions regarding VDR.'' |
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==Answer 2: Xine== |
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[[Xine]] comes with full DVB support in its standard installation, therefore one only needs to install the DVB driver and xine and can start watching digital TV. The gxine user interface is very powerful and allows many changes on the run. |
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==More information== |
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Both solutions are able to decode [[HDTV]] channels, and avoid the limitations and problems of the [[TI AV711x|AV711x]] based PCI cards. |
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''Links:'' |
''Links:'' |
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* [http://developer.berlios.de/projects/softdevice/ The BerliOS Project homepage of the softdevice project] |
* [http://developer.berlios.de/projects/softdevice/ The BerliOS Project homepage of the softdevice project] |
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* [http://home2.vr-web.de/~rnissl/ Homepage of the xine Plugin for VDR] |
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* [http://xinehq.de/ The Xine Project Homepage] |
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==Some open questions== |
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- I can only speak about the softdevice plugin. It works very well and with any graphics card that supports Xvideo. No 3D-stuff required. For sound it uses Alsa but here I had to use Alsa's dmix plugin else the sound stutters. |
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[[Category:Software]] |
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* ''ermmmm, anybody knows the xine-plugin link?'' |
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Latest revision as of 22:58, 6 January 2008
Historically, VDR required an AV711x based DVB PCI card (i.e. full featured card) to decode Audio and Video and to render it's OSD. Since these cards are quite expensive and old-fashioned now, so called budget cards dominate the market. They deliver the MPEG signal to the software and it's the main CPU that decodes it. See also Output devices (VDR wiki) for general information.
There are two answers for the questions: "So what software is there for budget cards in Linux?"
Answer 1: VDR Software Decoder Plugin
The VDR Software Decoder Plugin is a plugin for VDR. See the VDR Wiki for more information.
However, this plugin is not installed by default, so you have to expect some amount of work to get a software-decoder based VDR setup running.
Answer 2: Xine
Xine comes with full DVB support in its standard installation, therefore one only needs to install the DVB driver and xine and can start watching digital TV. The gxine user interface is very powerful and allows many changes on the run.
More information
Both solutions are able to decode HDTV channels, and avoid the limitations and problems of the AV711x based PCI cards.
Links:
- The BerliOS Project homepage of the softdevice project
- Homepage of the xine Plugin for VDR
- The Xine Project Homepage
Some open questions
Sadly, no portable OpenGL-based renderer is known which would allow to build a STB with any cheap modern graphics card. (is this true, allows the xine-plugin OpenGL outputs?)
- I can only speak about the softdevice plugin. It works very well and with any graphics card that supports Xvideo. No 3D-stuff required. For sound it uses Alsa but here I had to use Alsa's dmix plugin else the sound stutters.