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.
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{{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.}}
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==Hardware requirements==
==Hardware requirements==
* DVB card with S/PDIF port
* DVB card with S/PDIF port
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==Applying the patch==
==Applying the patch==
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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
  gunzip patch
  gunzip patch
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[[Category:Patches]]
[[Category:Patches]]
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<!-- Link to german wiki page -->
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{{i18n|ac3overdvb-patch}}
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[[de:AC3overDVB-Patch]]
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Latest revision as of 10:24, 13 March 2006

Contents

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
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