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MediaPortal 1
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SAF v4.00 ''stable'' (StandAlone Filters) - DXVA ready (H.264 and VC-1).
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<blockquote data-quote="hoborg" data-source="post: 516322" data-attributes="member: 77164"><p>For decoding AAC Monogram AAC decoder is used, not FFDshow (FFDshow have only experiental support for AAC, lot of AAC audio doesnot working).</p><p>For me, more logical way is to setup AC3 filter to do passthough of already decoded audio (known as double decoding). It is working this way:</p><p></p><p>FFDshow will decode MP2 to "uncompresed" PCM16 format, then AC3 filter encode PCM to AC3 and then passthrough it</p><p></p><p><strong>Decoding chain:</strong></p><p>(PCM16 2/0 (stereo) 48000) -> Processor -> (Linear PCM 2/0 (stereo) 48000) -> Encoder -> (AC3 2/0 (stereo) 48000) -> Spdifer -> (SPDIF 2/0 (stereo) 48000) -> Dejitter -> (SPDIF 2/0 (stereo) 48000)</p><p></p><p>Using this chain all audio output can be passthrough</p><p></p><p>Here is example of AAC (stereo) decoded, encoded, then passthrough using Monogram AAC decoder + AC3 filter:</p><p><img src="http://hobring.esero.net/saf/mp/Snap6.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><strong>Decoding chain:</strong></p><p>(PCM16 2/0 (stereo) 48000) -> Processor -> (Linear PCM 2/0 (stereo) 48000) -> Encoder -> (AC3 2/0 (stereo) 48000) -> Spdifer -> (SPDIF 2/0 (stereo) 48000) -> Dejitter -> (SPDIF 2/0 (stereo) 48000)</p><p></p><p>All you need to do to enable it is add AC3 filter to MP postprocessing.</p><p></p><p>In theory, it should work for all audio formats...</p><p></p><p>EDIT:</p><p><strong>Tested on 5.1 AAC:</strong> (Monogram AAC + AC3 filter)</p><p>Decoding chain:</p><p>(PCM16 3/2.1 (5.1) 44100) -> Processor -> (Linear PCM 3/2.1 (5.1) 44100) -> Encoder -> (AC3 3/2.1 (5.1) 44100) -> Spdifer -> (SPDIF 3/2.1 (5.1) 44100) -> Dejitter -> (SPDIF 3/2.1 (5.1) 44100)</p><p></p><p><span style="color: Red"><strong>So, if can anyone confirm that this (double decoding) passthrough is working correctly, i can setup SAF to use it by default.</strong></span></p></blockquote><p></p>
[QUOTE="hoborg, post: 516322, member: 77164"] For decoding AAC Monogram AAC decoder is used, not FFDshow (FFDshow have only experiental support for AAC, lot of AAC audio doesnot working). For me, more logical way is to setup AC3 filter to do passthough of already decoded audio (known as double decoding). It is working this way: FFDshow will decode MP2 to "uncompresed" PCM16 format, then AC3 filter encode PCM to AC3 and then passthrough it [B]Decoding chain:[/B] (PCM16 2/0 (stereo) 48000) -> Processor -> (Linear PCM 2/0 (stereo) 48000) -> Encoder -> (AC3 2/0 (stereo) 48000) -> Spdifer -> (SPDIF 2/0 (stereo) 48000) -> Dejitter -> (SPDIF 2/0 (stereo) 48000) Using this chain all audio output can be passthrough Here is example of AAC (stereo) decoded, encoded, then passthrough using Monogram AAC decoder + AC3 filter: [IMG]http://hobring.esero.net/saf/mp/Snap6.png[/IMG] [B]Decoding chain:[/B] (PCM16 2/0 (stereo) 48000) -> Processor -> (Linear PCM 2/0 (stereo) 48000) -> Encoder -> (AC3 2/0 (stereo) 48000) -> Spdifer -> (SPDIF 2/0 (stereo) 48000) -> Dejitter -> (SPDIF 2/0 (stereo) 48000) All you need to do to enable it is add AC3 filter to MP postprocessing. In theory, it should work for all audio formats... EDIT: [B]Tested on 5.1 AAC:[/B] (Monogram AAC + AC3 filter) Decoding chain: (PCM16 3/2.1 (5.1) 44100) -> Processor -> (Linear PCM 3/2.1 (5.1) 44100) -> Encoder -> (AC3 3/2.1 (5.1) 44100) -> Spdifer -> (SPDIF 3/2.1 (5.1) 44100) -> Dejitter -> (SPDIF 3/2.1 (5.1) 44100) [COLOR="Red"][B]So, if can anyone confirm that this (double decoding) passthrough is working correctly, i can setup SAF to use it by default.[/B][/COLOR] [/QUOTE]
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