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2007 Sep 17
5
rtp payload lenth
...e plus maybe bits of
padding.
Can one of you tell me what kind of mode this is?
Thank you in advance.
Pawel
ps. IMHO some kind of table that I've shown should be included in RFC
so in Table 1 in draft-ietf-avt-rtp-speex-03 there should be additional
column.
Namely frame size.
Pawel Cyrta <pawel@cyrta.com <mailto:pawel@cyrta.com>>
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2007 Sep 18
0
rtp payload lenth
...2b sequence, except that this one is split
across two bytes. So that's how you tell the content of a Speex frame.
If anyone wants to build that knowledge into wireshark, I'd be willing
to help by providing the rest of the knowledge required.
Cheers,
Jean-Marc
> Regards,
> Pawel Cyrta
>
> Jean-Marc Valin pisze:
>> Not sure what a payload of 75 bytes could be. Are you sure that doesn't
>> include the 12-byte RTP header? Other than that, maybe it's using
>> wideband (although there's nothing that corresponds exactly to 75 bytes.
>>
>&g...
2007 Sep 17
0
rtp payload lenth
...of 75 bytes could be. Are you sure that doesn't
include the 12-byte RTP header? Other than that, maybe it's using
wideband (although there's nothing that corresponds exactly to 75 bytes.
If you send me the hexdump for one packet, I may be able to find out
what it is.
Jean-Marc
Pawel Cyrta wrote:
> Hello to all speex developers,
>
> I have question regarding payload length of narrowband speex in RTP.
> I were watching tcpdump of the xlite softphone and have found that
> it uses weird payload length namely 75 Bytes
> I went through various source and without success...
2007 Oct 02
1
One packet with multiple frames in VBR
Hi,
Is is possible to have no problems with VBR speex mode "on" and send
multiple frames in one RTP packet?
I can't find that in IETF draft.
As Jean-Marc said previously, speex decoder recognise the mode of
each frame by looking on first 5 bits, thus
there shouldn't be a problem with receiving & decoding speex bitstream.
However, I found multiple speex frames (say 2) with
2007 Sep 14
0
rtp payload lenth
Hello to all speex developers,
I have question regarding payload length of narrowband speex in RTP.
I were watching tcpdump of the xlite softphone and have found that
it uses weird payload length namely 75 Bytes
I went through various source and without success.
To be clear:
For 8000Hz sample in 20 ms that is 160 samples per frame.
This makes 50 frames per sec.
modes bit-rate
8 kbit/s