Registrtion of MIME media type audio/aptX
MIME media type name: audio MIME subtype name: aptX Required parameters: rate/Channels The RTP timestamp clock rate, which is equal to the sampling rate. The typical rate is 48000, but other rates may be specified. Optional parameters: AudioMode/Aux Audio Mode: Stereo/Mono/DualMono (S/M/DM) Aux: Auxiliary data stream (AuxOn/AuxOff) Encoding considerations: This type is only defined for transfer via RTP [RFC 3550]. Security considerations: See Section 5 of RFC 3555 Interoperability considerations: none Published specification: Applications which use this media type: Audio and video streaming and conferencing tools. Additional information: none Person & email address to contact for further information: Gregory Massey <gmassey@aptx.com> Intended usage: COMMON Author/Change controller: Gregory Massey Gregory Massey Chief Technical Officer Audio Processing Technology Tel: +44-28-9037 1110 Fax: +44-28-9037 1137 Mob: +44 784110 2975 Email: gmassey@aptx.com Website: www.aptx.com <http://www.aptx.com/content.asp?site=1&page=50>
Greg, We have previously discussed bringing this work to the IETF AVT working group. I would strongly suggest that you do so, submitting an Internet-Draft for your RTP Payload Format, and allowing the working group to provide advice. As they stand, these draft registrations fail to address the issues (correct media parameters, SDP, conformance to RFC 4855, etc.) in a number of ways. Colin On 15 May 2007, at 08:52, Greg Massey wrote:
MIME media type name: audio
MIME subtype name: aptX
Required parameters: rate/Channels The RTP timestamp clock rate, which is equal to the sampling rate. The typical rate is 48000, but other rates may be specified.
Optional parameters: AudioMode/Aux
Audio Mode: Stereo/Mono/DualMono (S/M/DM)
Aux: Auxiliary data stream (AuxOn/AuxOff)
Encoding considerations: This type is only defined for transfer via RTP [RFC 3550].
Security considerations: See Section 5 of RFC 3555
Interoperability considerations: none
Published specification:
Applications which use this media type: Audio and video streaming and conferencing tools.
Additional information: none
Person & email address to contact for further information: Gregory Massey <gmassey@aptx.com>
Intended usage: COMMON
Author/Change controller: Gregory Massey
<image002.gif> Gregory Massey Chief Technical Officer Audio Processing Technology
Tel: +44-28-9037 1110 Fax: +44-28-9037 1137 Mob: +44 784110 2975 Email: gmassey@aptx.com Website: www.aptx.com
Colin Perkins skrev:
Greg,
We have previously discussed bringing this work to the IETF AVT working group. I would strongly suggest that you do so, submitting an Internet-Draft for your RTP Payload Format, and allowing the working group to provide advice. As they stand, these draft registrations fail to address the issues (correct media parameters, SDP, conformance to RFC 4855, etc.) in a number of ways.
And to further clarify. You are not allowed to register audio/aptx (in the standards tree) unless there is a standards document (RFC or other recognized SDO) defining payload format and codecs. If that isn't available, I would recommend registering them in the vendor tree, i.e. audio/vnd.apt.X Cheers Magnus Westerlund IETF Transport Area Director & TSVWG Chair ---------------------------------------------------------------------- Multimedia Technologies, Ericsson Research EAB/TVM/M ---------------------------------------------------------------------- Ericsson AB | Phone +46 8 4048287 Torshamsgatan 23 | Fax +46 8 7575550 S-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com ----------------------------------------------------------------------
participants (4)
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Colin Perkins -
Greg Massey -
Magnus Westerlund -
Mark Baker