- From: Thierry Michel <tmichel@w3.org>
- Date: Sun, 12 Aug 2007 20:01:37 +0200
- To: Philippe Le Hegaret <plh@w3.org>
- CC: www-smil@w3.org, Ivo Emanuel Gonçalves <justivo@gmail.com>, Dominique Hazael-Massieux <dom@w3.org>
Philippe Le Hegaret Is your comment a formal last call comment to be processed by the SYMM WG ? Thierry. wrote: > Section "18.4.8 Required MIME Types", part of the SMIL 3.0 Mobile > Profile, indicates: > [[ > * audio/basic [MIME-2] > * Ogg Vorbis [VORBIS] > * image/png [PNG-MIME], [PNG-REC] > * image/jpeg [MIME-2], [JFIF] > ]] > http://www.w3.org/TR/2007/WD-SMIL3-20070713/smil-mobile-profile.html#q14 > > Requiring the use of PCM and Vorbis in the mobile environment might be > difficult for two reasons: > - it *seems* that Vorbis requires more CPU to be decoded than a format > like AAC, thus rendering its use in a mobile environment more > problematic. > - 3GPP and 3GPP2 already adopted AAC as their audio codec (+ some AMR > speech codecs). It's hard to imagine the mobile industry willing to > switch to a different format now. > > So, while I certainly don't want to suggest that the Mobile profile must > require support for AAC, I wonder if the current proposal will be > welcome by the Mobile industry... > > Regards, > > Philippe > > PS: I'm copying Ivo Emanuel Gonçalves and Dominique Hazael-Massieux > since they might have some input or comments. > >
Received on Sunday, 12 August 2007 18:01:46 UTC