Difference between revisions of "Ac3overdvb-patch"

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The digital S/PDIF port of the DVB cards is only capable of sending PCM data, so the AC3 data has to be encapsulated into a PCM stream. This digital audio data stream is then received and decoded by a external Dolby Digital receiver.
 
The digital S/PDIF port of the DVB cards is only capable of sending PCM data, so the AC3 data has to be encapsulated into a PCM stream. This digital audio data stream is then received and decoded by a external Dolby Digital receiver.
{{Box Hint|
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{{Box Info|
 
Not all DD receiver are capable of decoding an encapsulated pcm stream.}}
 
Not all DD receiver are capable of decoding an encapsulated pcm stream.}}
 +
 
==Hardware requirements==
 
==Hardware requirements==
 
* DVB card with S/PDIF port
 
* DVB card with S/PDIF port
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* patch
 
* patch
  
==Installation==
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==Applying the patch==
If the patch is compressed you have to unpack it bevor
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If the patch is compressed you have to unpack it before
<pre>
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gunzip patch
gunzip patch
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</pre>
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Now you can install it with
 
Now you can install it with
<pre>
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cd $SOURCEDIR/VDR
cd $SOURCEDIR/VDR
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patch -p 1 < /path/to/patch
patch -p 1 < /path/to/patch
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</pre>
+
 
Note, VDR has to be recompiled now, see [[VDR installation]].
 
Note, VDR has to be recompiled now, see [[VDR installation]].
  
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| http://www.muempf.de/down/DD-receiver-status.txt
 
| http://www.muempf.de/down/DD-receiver-status.txt
 
| List of compatible receivers
 
| List of compatible receivers
|-
 
| [3]
 
| http://www.vdr-portal.de/board/thread.php?threadid=1206
 
| another list of compatible receivers (german)
 
|-
 
| [4]
 
| http://www.vdr-portal.de/board/thread.php?threadid=1958
 
| AC3 with bitstreamout HOWTO and AC3overDVB Infos
 
 
|}
 
|}
  
 
[[Category:Patches]]
 
[[Category:Patches]]
  
<!-- Link to german wiki page -->
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{{i18n|ac3overdvb-patch}}
[[de:AC3overDVB-Patch]]
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Latest revision as of 12:24, 13 March 2006

Description

The AC3overDVB patch for VDR sends digital audio data in AC3 and DTS format to the digital S/PDIF port of the DVB card. Therewith VDR has the ability to output Dolby Digital as optical or electrical S/PDIF signal.

The digital S/PDIF port of the DVB cards is only capable of sending PCM data, so the AC3 data has to be encapsulated into a PCM stream. This digital audio data stream is then received and decoded by a external Dolby Digital receiver.

Info
Info

Not all DD receiver are capable of decoding an encapsulated pcm stream.


Hardware requirements

  • DVB card with S/PDIF port
  • compatible Dolby Digital receiver (see hint)

Software requirements

  • patch

Applying the patch

If the patch is compressed you have to unpack it before

gunzip patch

Now you can install it with

cd $SOURCEDIR/VDR
patch -p 1 < /path/to/patch

Note, VDR has to be recompiled now, see VDR installation.

Problems

Links

[1] http://www.muempf.de/down Patch homepage
[2] http://www.muempf.de/down/DD-receiver-status.txt List of compatible receivers