Alchemy’s OGG Decoder for ActionScript 3

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1. Pingback: ★ bcdef.org ★ » Blog Archive » OGG in Flash? Yes you can. Now how about WMA? on May 14, 2009

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17 Comments:

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• dre says on
  April 8, 2009 at 2:02 pm:

  Hi, thanks for this post. I am new to flash so excuse my questions if they seem silly

  1) I understand that “C:/Test.ogg” is embedded but fail to see where the file is actually read into the bytearray
  2) Is the entire file read into memory for processing. I ask this I want to access an internet radio stream. Would I be able to use the same code?

  Thanks
  dre

• Maurice Zarzycki says on
  April 8, 2009 at 3:46 pm:

  Hi,
  @1)This happens on line no. 30:
  _audio_bytearray=(new MUSIC_DATA) as ByteArray
  The ogg file you import on line 12 is stored as is in the SWF (so it is identical on the byte level). Then on that line above (eg. 30th) the OGG file is loaded into the _audio_bytearray AS ByteArray.
  @2)In this method yes, the whole file is stored in SWF. Originally the code (the Adobe’s) only supported files streamed from server, so it can be used to do that, but streaming Radio is completely different matter, I am not really sure how it works. I was planning to write a complete library supporting both embedded and streamed files. I will poke around it tonight and I can also see if I can get the radio streaming working.

  Nevertheless, if you want to try your own strength, I suggest you visit Adobe Alchemy, grab the Ogg Vorbis library with source and see the original code for yourself.
  Good luck anyway!

  Regards
  -Maurycy Zarzycki

• dre says on
  April 8, 2009 at 7:38 pm:

  Hi M

  Got it working using a sample from the actual source code. It now plays external Oggs files but still no streaming. If you look at OggVorbisDecoder it reads the entire file for decoding.

  For streaming I would need a different approach – probably reading the stream header, getting chunks at a time for decoding. So in essence a OggVorbisStreamDecoder is required.

  dre

• Keith says on
  April 27, 2009 at 10:35 pm:

  Wondering if anyone figured this out yet? I can successfully stream from an internet radio server locally, but from the web it stops loading at 5kb. I am using URLRequest, I think it needs to be done with URLStream or NetStream but haven’t been able to get it working yet.

  - Keith

• Maurice Zarzycki says on
  April 27, 2009 at 10:48 pm:

  @Keith:
  Could you by any chance throw the code you are using on Pastebin, and give me the link? I might be able to come up with something (slim chances though!)
  I’ll probably have to investigate a little bit on how internet radios actually work though.
  EDIT: I think I might know how to overcome this problem, at least I hope.

  Keep Going,
  -Maurycy

• Kudzo says on
  May 5, 2009 at 1:40 pm:

  Hi, as i am making a radio player i am really interested in this. @Maurice “I think I might know how to overcome this problem, at least I hope.” So how is the hope doing? I tried both demos: the Adobe 1 and yours. But i get a Bad Audio Type with adobe while trying to stream radio, getting a normal ogg file works.
  @Keith: I would be very interested in trying your code.

  Greets,
  Kudzo

• Maurycy Zarzycki says on
  May 5, 2009 at 2:14 pm:

  @Kudzo – Yes, I did manage to write a Frontend for this library, you can grab it from my Latest Post. It should be working fine, because some of the restrictions (for example amount of Hz) are ignored yet everything works as expected.

  Keep Going,
  -Maurycy

• Lucho says on
  July 17, 2009 at 6:23 pm:

  Thanks for sharing the package, i’m having trouble using your frontend package.
  Could you provide a sample flex project file?

  BTW I’m gettin :

  “1046:Type was not found or was not a compile-time constant: SampleDataEvent. OggVorbis Player/src/com/mauft/OggLibrary OggDecoder.as line 47, line 61 ”
  and same error on line 95 in OggStream.as

  This is with Flex 3.2

• Lucho says on
  July 17, 2009 at 6:53 pm:

  Sorry my mistake , i didn’t set the target version for flash to be 10, now it work fine. You can delete my posts.

• Nick says on
  July 31, 2009 at 6:19 pm:

  The code works great for me.
  My question is this, on line 45 you have:
  _audio_clip.play()

  I’m changing is to:
  _audio_clip.play(0, 100);

  I’m trying to loop it 100 times. The looping works when I use an mp3 file, but for some reason with your code above, no matter how many times I have it loop, it only plays one time.

  Any idea why?
  -Nick

• Maurycy Zarzycki says on
  July 31, 2009 at 6:33 pm:

  @Nick – It won’t work, because, I believe, of the way the OGG files are handled. If you want to use looping, I suggest you to download the Ogg Library Fronend I wrote – http://mauft.com/2009/651/alchemy-ogg-vorbis-frontend

• Bryan Dresselhaus says on
  September 21, 2009 at 10:37 pm:

  Anyone else have bad memory leak with this?

  When I profile it in Flex Builder, cmodule.oggvorbis.FlaccYield and cmodule.oggvorbis.CRunner just make endless instances of themselves. Eats up all the memory until the flash player dies.

• Vivek says on
  October 20, 2009 at 1:57 am:

  Hi,
  Thanks for the code and it works great. I was wondering if its possible to implement see() functionality in the OggStream frontend code? I would appreciate if you could provide a solution.

  -Vivek

• Vivek says on
  October 20, 2009 at 1:59 am:

  correction I ment seek() functionality

• Maurycy Zarzycki says on
  October 20, 2009 at 6:27 am:

  No, as far as I know. Maybe they have updated the Ogg Library, but while I was still working on it, Seek(), getLength() and getPostion() all didn’t work.

• Vivek says on
  October 20, 2009 at 3:40 pm:

  That was quick. Thank you.

• stef says on
  November 9, 2009 at 4:21 pm:

  Thanks a lot dude. That’s really awesome ;-)