Caleb Clausen (Caleb.Clausen@connsys.com)
Thu, 12 Apr 2001 17:16:01 -0700
From: "James P. Salsman" <bovik@best.com>
> I agree; there is established consensus that we have a union type
> (audio/basic G.711 with audio/wav MS-GSM). The flag to distinguish
> between the two is the RIFF header, because G.711 has no "magic
> numbers" or header of its own. If it were not for this problem,
> regular GSM would work fine.
[snip]
> If there is no such header, the stream will be assumed to be G.711.
> The probability that an audio/basic stream would begin with the
> header ought to be small enough.
i feel i should point out that there's a more reliable indicator of the
codec type: the content-type header of the enclosing body part.
just out of curiosity: what was the reason for using audio/basic for
g.711 messages rather than audio/wav with the appropriate codec
parameter?
"For, I say fortunately, I always carry a spare set
of feathers."
--Foghorn Leghorn
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