Helix Open Source MP3 Encoder

karl_lillevold · 13th July 2005, 19:14

We have open sourced our MP3 encoder under the RPSL/RCSL. It has been checked it in under datatype/mp3/codec/encoder

You can build it with the following example configuration in the ribosome build system:

Code:

bif: helix
target: datatype_mp3_codec_encoder
profile: helix-client-all-defines
SYSTEM_ID=linux-2.2-libc6-gcc32-i586

Documentation is available here:
http://datatype.helixcommunity.org/2005/mp3enc.doc

Source is here:
https://helixcommunity.org/viewcvs/c...codec/encoder/

Latexxx · 14th July 2005, 09:34

Is this the Xing encoder?

Anima123 · 14th July 2005, 14:41

Here's a rush compiled binary:

http://www.hydrogenaudio.org/forums/...howtopic=35540

rjamorim · 14th July 2005, 16:09

Compiling instructions for platforms other than Ribosome would be nice too. I'm not being able to make use of the assembly code :-/

karl_lillevold · 14th July 2005, 17:28

If someone were to contribute standalone makefiles, especially ones that on Win32 will include the i386 asm code, I am sure that would be most appreciated. I can check them into CVS.

Yes, this is based on the Xing encoder:
http://www.hydrogenaudio.org/forums/...howtopic=35531
but it has been much improved from its early days, and does not suffer from the well known problems (as the hydrogenaudio thread shows as well). This encoder was never included in any stand-alone Win32 Xing encoder app, but has been shipping with RealPlayer for some time (a few years).

AFAIK, after these improvements, it was also licensed to a large h/w electronics manufacturer who chose it after extensive quality tests.

Anima123 · 15th July 2005, 06:23

Win32 binary has been updated @ the same link: asm enabled and some small fixes.

http://www.hydrogenaudio.org/forums/...4&#entry313464

sbp · 19th November 2005, 13:12

Hi is it possible to use this MP3 encoder as a encoder for real timer capture of sound from a Tv-card.
My software needs an ACM codec.
Is it possible to make a "Helix ACM" version?

STeen

Pug Crydee · 20th December 2005, 15:34

It seems that this encoder creates file with different block size on left and right channel during joint stereo encoding which is a problem for some hardware decoders.

Lame uses same block size on joint stereo and different block size only on dual channel encoding so no errors on such hardware decoders.

Although the files created by Helix are compliant to MPEG-specs, it would be nice if someone can add an optional switch so that Helix behaves like Lame on joint stereo encoding with regard to block sizes.

I asked for that at hydrogenaudio forum http://www.hydrogenaudio.org/forums/...dpost&p=350781
but it seems no one there has time or interest to fix this.

So I wanted to ask if someone here would be so kind to fix this??

That would really be a great christmas present

Thanks
Pug

karl_lillevold · 20th December 2005, 22:44

See my reply over on hydrogenaudio, please.
http://www.hydrogenaudio.org/forums/...5&#entry351505

Pug Crydee · 21st December 2005, 04:47

Thanks Karl for your help!

I share my results with the new build on hydrogenaudio.

Thanks again
Pug

13th July 2005, 19:14	#1 \| Link
karl_lillevold Moderator Join Date: Oct 2002 Location: Seattle Posts: 1,584	Helix Open Source MP3 Encoder We have open sourced our MP3 encoder under the RPSL/RCSL. It has been checked it in under datatype/mp3/codec/encoder You can build it with the following example configuration in the ribosome build system: Code: bif: helix target: datatype_mp3_codec_encoder profile: helix-client-all-defines SYSTEM_ID=linux-2.2-libc6-gcc32-i586 Documentation is available here: http://datatype.helixcommunity.org/2005/mp3enc.doc Source is here: https://helixcommunity.org/viewcvs/c...codec/encoder/ __________________ This information is provided "AS IS" with no warranties, grants no rights, and reflects my personal opinion.

14th July 2005, 09:34	#2 \| Link
Latexxx Registered User Join Date: Nov 2001 Location: Tampere, Finland Posts: 618	Is this the Xing encoder? __________________ A/V moderator @ hydrogenaudio.org My weird old sh*t: http://www.nic.fi/~lhahne/ http://last.fm/user/Latexxx/

14th July 2005, 16:09	#4 \| Link
rjamorim Blah! Join Date: Jul 2002 Location: Brazil Posts: 337	Compiling instructions for platforms other than Ribosome would be nice too. I'm not being able to make use of the assembly code :-/ __________________ Get latest LAME, Vorbis and more binaries at RareWares: http://www.rarewares.org

14th July 2005, 17:28	#5 \| Link
karl_lillevold Moderator Join Date: Oct 2002 Location: Seattle Posts: 1,584	If someone were to contribute standalone makefiles, especially ones that on Win32 will include the i386 asm code, I am sure that would be most appreciated. I can check them into CVS. Yes, this is based on the Xing encoder: http://www.hydrogenaudio.org/forums/...howtopic=35531 but it has been much improved from its early days, and does not suffer from the well known problems (as the hydrogenaudio thread shows as well). This encoder was never included in any stand-alone Win32 Xing encoder app, but has been shipping with RealPlayer for some time (a few years). AFAIK, after these improvements, it was also licensed to a large h/w electronics manufacturer who chose it after extensive quality tests. __________________ This information is provided "AS IS" with no warranties, grants no rights, and reflects my personal opinion. Last edited by karl_lillevold; 14th July 2005 at 17:42.

20th December 2005, 22:44	#9 \| Link
karl_lillevold Moderator Join Date: Oct 2002 Location: Seattle Posts: 1,584	See my reply over on hydrogenaudio, please. http://www.hydrogenaudio.org/forums/...5&#entry351505 __________________ This information is provided "AS IS" with no warranties, grants no rights, and reflects my personal opinion.

14th July 2005, 14:41	#3 \| Link
Anima123 Registered User Join Date: Jun 2005 Posts: 502	Here's a rush compiled binary: http://www.hydrogenaudio.org/forums/...howtopic=35540

15th July 2005, 06:23	#6 \| Link
Anima123 Registered User Join Date: Jun 2005 Posts: 502	Win32 binary has been updated @ the same link: asm enabled and some small fixes. http://www.hydrogenaudio.org/forums/...4&#entry313464

19th November 2005, 13:12	#7 \| Link
sbp Registered User Join Date: Dec 2003 Posts: 79	Hi is it possible to use this MP3 encoder as a encoder for real timer capture of sound from a Tv-card. My software needs an ACM codec. Is it possible to make a "Helix ACM" version? STeen

20th December 2005, 15:34	#8 \| Link
Pug Crydee Registered User Join Date: Sep 2005 Posts: 6	It seems that this encoder creates file with different block size on left and right channel during joint stereo encoding which is a problem for some hardware decoders. Lame uses same block size on joint stereo and different block size only on dual channel encoding so no errors on such hardware decoders. Although the files created by Helix are compliant to MPEG-specs, it would be nice if someone can add an optional switch so that Helix behaves like Lame on joint stereo encoding with regard to block sizes. I asked for that at hydrogenaudio forum http://www.hydrogenaudio.org/forums/...dpost&p=350781 but it seems no one there has time or interest to fix this. So I wanted to ask if someone here would be so kind to fix this?? That would really be a great christmas present Thanks Pug

21st December 2005, 04:47	#10 \| Link
Pug Crydee Registered User Join Date: Sep 2005 Posts: 6	Thanks Karl for your help! I share my results with the new build on hydrogenaudio. Thanks again Pug

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