[Asterisk-video] AMR passthrough patch on bugtracker

[Koen Van Impe]

Hi Klaus,

I tried your patch that uses the amr codec.
Managed to build it with Asterisk 1.4.13.
We have a 3G gateway that talks SIP to this Asterisk and on the other side a
plain X-Lite that registers with this Asterisk (using g711 alaw).

I can't call X-Lite. Error: "chan_sip.c:2963 sip_call: No audio format found
to offer"
However, the amr codec seems to be available:

        INT    BINARY        HEX   TYPE       NAME   DESC
--------------------------------------------------------------------------------
          1 (1 <<  0)      (0x1)  audio       g723   (G.723.1)
          2 (1 <<  1)      (0x2)  audio        gsm   (GSM)
          4 (1 <<  2)      (0x4)  audio       ulaw   (G.711 u-law)
          8 (1 <<  3)      (0x8)  audio       alaw   (G.711 A-law)
         16 (1 <<  4)     (0x10)  audio   g726aal2   (G.726 AAL2)
         32 (1 <<  5)     (0x20)  audio      adpcm   (ADPCM)
         64 (1 <<  6)     (0x40)  audio       slin   (16 bit Signed Linear
PCM)
        128 (1 <<  7)     (0x80)  audio      lpc10   (LPC10)
        256 (1 <<  8)    (0x100)  audio       g729   (G.729A)
        512 (1 <<  9)    (0x200)  audio      speex   (SpeeX)
       1024 (1 << 10)    (0x400)  audio       ilbc   (iLBC)
       2048 (1 << 11)    (0x800)  audio       g726   (G.726 RFC3551)
       4096 (1 << 12)   (0x1000)  audio       g722   (G722)
       8192 (1 << 13)   (0x2000)  audio        amr   (AMR NB)
      65536 (1 << 16)  (0x10000)  image       jpeg   (JPEG image)
     131072 (1 << 17)  (0x20000)  image        png   (PNG image)
     262144 (1 << 18)  (0x40000)  video       h261   (H.261 Video)
     524288 (1 << 19)  (0x80000)  video       h263   (H.263 Video)
    1048576 (1 << 20) (0x100000)  video      h263p   (H.263+ Video)
    2097152 (1 << 21) (0x200000)  video       h264   (H.264 Video)

On the bright side: amr works fine in pass-through. So it is recognized
correctly during call setup, right?

Regards,

Koen



On 9/17/07, Klaus Darilion <klaus.mailinglists at pernau.at> wrote:
>
> fyi: http://bugs.digium.com/view.php?id=10741
>
> feedback welcome
>
> regards
> klaus
>
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