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Where can I find Open source HE AAC V2 Codec?
sjhboy@naver.com
post Feb 14 2010, 00:35
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I'm finding Open source HE AAC V2 codec.

Frist, I tried to decode HE AAC V2 stream using faad2,
But the decoder couldn't decode the stream.

If anybody know where the open soure HE AAC V2 Codec is, please let me the information.

Thanks.
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saratoga
post Feb 14 2010, 03:11
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I think libfaad should be able to decode HEv2, but you could also look at Helix AAC. Its not GPL, but is open source, and in some ways it is significantly better then libfaad.
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sjhboy@naver.com
post Feb 14 2010, 13:40
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QUOTE (Mike Giacomelli @ Feb 14 2010, 03:11) *
I think libfaad should be able to decode HEv2, but you could also look at Helix AAC. Its not GPL, but is open source, and in some ways it is significantly better then libfaad.


I used faad2 at http://www.audiocoding.com/ but the codec could not decode my test stream
The test stream is AAC HE V2.
And the error message is:
"Error: PCE shall be the first element in a frame".

The faad include the following function,
And i think the function doesn't HE AAC(V1,V2) option.

int8_t can_decode_ot(const uint8_t object_type)
{
switch (object_type)
{
case LC:
..........................
case MAIN:
..........................
case SSR:
..........................
case LTP:
..........................
}

return -1;
}

This post has been edited by sjhboy@naver.com: Feb 14 2010, 13:46
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Lorem Ipsum
post Jun 24 2010, 09:04
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There's the Monogram DirectShow AAC Decoder.
Note that it is published as GPL, yet I couldn't find a link to the source. On the other hand, I didn't look too hard.

I've recently began trying it, in order to decode AAC-HEv2 audio streams on recorded DVB-T video. It recognized some of the streams, not all.

-- L. Ipsum
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Sebastian Mares
post Jun 24 2010, 12:15
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http://dev.monogram.sk/websvn/listing.php?...%2F#path_trunk_


--------------------
http://listening-tests.hydrogenaudio.org/sebastian/
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