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Author Topic: What should I Expect For AAC Support?  (Read 1448 times)

BlueGlow

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What should I Expect For AAC Support?
« on: January 20, 2006, 03:01:44 am »

Trying AAC support tonight in .102 and it sort of works. Should I report issues or just be happy that MC can play them at all?

Here are the results of my first test playing a set of a few dozen enhanced and older non-enhanced aac podcasts from The Sounds in My Head.

The enhanced podcast pictures display (cool).
It takes from 10 seconds to a minute to start playing enhanced or non-enhanced.
The Ogg DirectShow icon displays in the system tray while starting and usually 'blinks' once during the start.
MC consumes 50% of the CPU while starting either type.
Once it's started then MC has normal CPU usage.
It often plays the start then goes quiet for 3-30 seconds while playing the file.
MC has crashed a few times trying to start an aac file after several other aac files play.
The same files play without MC crashing after restarting MC.
I only used aac files in this test.
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BlueGlow

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Re: What should I Expect For AAC Support?
« Reply #1 on: January 20, 2006, 03:20:33 am »

The AVI Splitter and AVI Chunk Viewer have each popped up once while trying to start one of these AAC files.
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Yaobing

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Re: What should I Expect For AAC Support?
« Reply #2 on: January 20, 2006, 09:47:59 am »

Trying AAC support tonight in .102 and it sort of works. Should I report issues or just be happy that MC can play them at all?


You should be happy that MC can play them  :D.

Seriously, please do report any issues you encounter.

As for this one however, I am afraid that I have to say that there is no good solution at this time. I have tried one of the files from Sounds in My Head. It does start slow.

There must be something with these particular files.

We rely on third-party DirectShow filters to play aac files. It seems that some filters are incapable of handling these podcast files. Of the two I found to work, 3ivx Media Splitter starts very slowly, Haali Media Splitter starts quite fast. You might want to try installing Haali Media Splitter. Before installing it, please read this following thread to understand some other issues related to it:

http://yabb.jriver.com/interact/index.php?topic=30561.msg214940#msg214940
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Yaobing Deng, JRiver Media Center

BlueGlow

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Re: What should I Expect For AAC Support?
« Reply #3 on: January 20, 2006, 12:03:50 pm »

Thanks for the reply, and, yes, I am just happy they can be played at all. ;)

So, then I'm probably seeing bugs with Ogg DirectShow and 3ivx Media Splitter not MC, right?
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Yaobing

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Re: What should I Expect For AAC Support?
« Reply #4 on: January 20, 2006, 12:57:42 pm »

Thanks for the reply, and, yes, I am just happy they can be played at all. ;)

So, then I'm probably seeing bugs with Ogg DirectShow and 3ivx Media Splitter not MC, right?

Yes, and more likely it is the splitter, not the decoder. 3ivx Media Splitter is capable of playing many aac files, but not all. For example it plays only the first few seconds of RealPlayer encoded m4a files. Another splitter I tried, Elecard Mpg4 Demultiplexer, plays Real's m4a files, but does not play the podcast files you mentioned. So different splitters have different behavior.
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Yaobing Deng, JRiver Media Center
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