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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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Auto Transcoding - Higher AVI quality?

 
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Auto Transcoding - Higher AVI quality?
A_Brass
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Senior Member

Posts: 474
Threads: 22
Joined: Mar 2005
#1
2007-02-09, 02:03 PM
Hello all, got a transcodoing question.

I'm using the built-in transcodoing and I'm not getting the quality I would like. Using the default settings in the AVI's that are generated for Xvid are a little blocky. I tried to up the bit-rate but it didn't seem to have any effect. I have done a little research on FFMPEG and I modified the command line to up the bit-rate but it didn't work or didn't have any effect on the quality or I"m doing something wrong.

This is the ffmpeg command line I added to my config.xml:

<Conversion name="XviD - HighQuality" cmd="-y -i {SOURCE_FILE} -f avi -ab 224 -ac 2 -acodec mp3 -vcodec mpeg4 -b 2500 -vtag XVID {DEST_FILE}" targetExtension=".avi">-y -i {SOURCE_FILE} -f avi -ab 224 -ac 2 -acodec mp3 -vcodec mpeg4 -b 2500k -vtag XVID {DEST_FILE}</Conversion>

I tried changing the "-b" from 1400 to 2500. I made the change on both the source and dest file sections.

Any idea what else I should change to get a better quality AVI? The size is still 720x480 frame rate is still 29fps.

Thanks in advance.
GBPVR Server:
AMD Sempron 3300+, 1gb DDR, 100, 200 & 500gb HDDs, DVD -/+RW PVR150 RETAIL, PVR150MCE.
GBPVR 1.0.16, SKIN'S = Default Blue, PLUGIN'S = None
MediaMVP
HtV
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Posting Freak

Posts: 3,470
Threads: 46
Joined: Dec 2005
#2
2007-02-09, 02:13 PM
I think you might have a messed up config.xml. see the 99.5 sticky:
http://forums.nextpvr.com/showthread.php?t=22656 post 5.

After you cleared this up your changes should work make sure you have a k added after the bitrates e.g. -b 2500k
AMD Athlon 64 3000, HDD: 80, 120, 200 GB, Hauppauge 350 + 150, MVP, Asus 6000L Laptop client, Asus X50sl client,
Fritz!box 7140 modem/router, GBPVR 1.3.7.
A_Brass
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Senior Member

Posts: 474
Threads: 22
Joined: Mar 2005
#3
2007-02-10, 02:44 AM
HtV Wrote:I think you might have a messed up config.xml. see the 99.5 sticky:
http://forums.nextpvr.com/showthread.php?t=22656 post 5.

After you cleared this up your changes should work make sure you have a k added after the bitrates e.g. -b 2500k

Thanks HtV, I have got to say this is one of the best user forums I have ever been part of. I compeltly missed the 99.5 sticky about transcoding. I'm suprised it was working at all.

Thanks
GBPVR Server:
AMD Sempron 3300+, 1gb DDR, 100, 200 & 500gb HDDs, DVD -/+RW PVR150 RETAIL, PVR150MCE.
GBPVR 1.0.16, SKIN'S = Default Blue, PLUGIN'S = None
MediaMVP
HtV
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Posting Freak

Posts: 3,470
Threads: 46
Joined: Dec 2005
#4
2007-02-10, 08:24 AM
A_Brass Wrote:I'm suprised it was working at all.
Thanks

It falls back to (lousy) default quality when parameters are entered wrong. Which, in fact is quite amazing.Smile
AMD Athlon 64 3000, HDD: 80, 120, 200 GB, Hauppauge 350 + 150, MVP, Asus 6000L Laptop client, Asus X50sl client,
Fritz!box 7140 modem/router, GBPVR 1.3.7.
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