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NextPVR Forums Public Add-ons (3rd party plugins, utilities and skins) Old Stuff (Legacy) GB-PVR Support (legacy) v
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MPA Decoder Filter

 
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MPA Decoder Filter
observer_11
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Posts: 315
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#1
2009-02-21, 12:14 AM
After much hair pulling I discovered why DTS is not being passed to my AV receiver when playing back 720p mkv files. The problem is the MPA Decoder Filter is automatically included in the filter graph and if I remove it and connect directly to AC3Filter I can pass thru my DTS and everything seems fine.

Anyways, in the config I have set AC3filter as my HD audio codec but in addition to AC3filter this MPA Decoder filter is automatically inserted. Anyone know why this happens, what this MPA decoder is doing, and more importantly how I can tell GBPVR to NOT use it as part of the playback?
.

HTPC Server: AMD Athlon XP 3200+, 768Mb RAM, Gigabyte 6200 AGP, Hauppauge 500MCE Capture Tuner, WinXP Pro SP3 (concurrent users), NPVR 2.5.9
Client1: PCH A110 Client2: AMD Opteron 2.6Ghz, 2Gb DDR, ATI 1650, WinXP Pro SP3, NPVR 2.5.9 Client3: Intel E6420, 2Gb RAM, XFX Radeon HD 7850, WinXP Pro SP3, NPVR 2.5.9 Client 4: Intel E2120, 4Gb DDR2, Nvidia 7600GS, Vista SP1 32-bit, NPVR 2.5.9
sub
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#2
2009-02-21, 01:13 AM
Quote:Anyways, in the config I have set AC3filter as my HD audio codec but in addition to AC3filter this MPA Decoder filter is automatically inserted
GB-PVR only has a say in the decoders used when playing .mpg or .ts files. With .mkv files you'll just get whatever the system default decoders are.

To experiment, and produce the same results as GB-PVR, run GraphEdit and select the 'render media file' menu option, and select your .mkv file. To change the default decoders you'll need to fiddle around with filter merits etc.
observer_11
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Posts: 315
Threads: 52
Joined: Dec 2005
#3
2009-02-21, 01:18 AM
OK thanks. Just re-enforces my theory that codecs are evil. Wink
.

HTPC Server: AMD Athlon XP 3200+, 768Mb RAM, Gigabyte 6200 AGP, Hauppauge 500MCE Capture Tuner, WinXP Pro SP3 (concurrent users), NPVR 2.5.9
Client1: PCH A110 Client2: AMD Opteron 2.6Ghz, 2Gb DDR, ATI 1650, WinXP Pro SP3, NPVR 2.5.9 Client3: Intel E6420, 2Gb RAM, XFX Radeon HD 7850, WinXP Pro SP3, NPVR 2.5.9 Client 4: Intel E2120, 4Gb DDR2, Nvidia 7600GS, Vista SP1 32-bit, NPVR 2.5.9
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