[Live-devel] Audio Formats Supoort

[Subbu]

Thank you Scott

Regards,
Subbu
  ----- Original Message ----- 
  From: Scott Hays 
  To: LIVE555 Streaming Media - development & use 
  Sent: Wednesday, April 12, 2006 6:34 AM
  Subject: Re: [Live-devel] Audio Formats Supoort


  On 4/11/06, Ross Finlayson <finlayson at live555.com> wrote:

    >4. Apple Lossless (QTSS not serving audio)
    >5. IMA 4:1 (IMA 4:1 Mono 8.000 kHz)
    >6. MACE 3:1 (MACE 3:1 Mono 8.000 kHz)
    >7. MACE 6:1 (MACE 6:1 Mono 8.000 kHz)
    >8. Qdesign Music 2 (QDesign Music 2 Mono 8.000 kHz)

    None of these are supported, because I don't know the payload format
    for them.  As far as I know, these are proprietary and unpublished.

  About a month ago, I stumbled onto how QuickTime/Darwin Streaming Server handles packetization for media which have no standard packet format.  It is described here: http://developer.apple.com/quicktime/icefloe/dispatch026.html

  There should be enough information there to write support for this format.  I haven't had the time and it looks like we're going to be using MP3 audio instead of IMA ADPCM for our products, so it's not a high priority for me right now. 

  I know that that's how IMA ADPCM is streamed from DSS to QuickTime Player.  I suspect that at least some, if not all of the others, use this packet format too.

  Scott



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