[Asterisk-video] can't hear amr audio

[Klaus Darilion]

Which codec is: fmt 00002000 ? I think this is 2>>13 = AMR.

Thus I am irritated by " 0x580004 (ulaw|h263|h263p) to 0x0 (nothing)"

The 0x0 should be 0x2000 (AMR) - try to find out why the AMR bitmask 
flag is lost when calling set_format().

regards
klaus


Andrew Buchanan schrieb:
> Hi,
> 
>  
> 
> My camera (a Vivotek PZ7152) is set to AMR audio and when app_rtsp connects it correctly identifies an audio track containing amr audio AMR/8000, but I get no audio, only video.  I would appreciate some help or suggestions to get audio working.
> 
>  
> 
> ------------------------
> 
> I compiled asterisk using the instructions to enable amr audio
> 
> http://sip.fontventa.com/svn/asterisk/amr/README
> 
>  
> 
> and I added the octet-aligned setting, which according to the sdp from 
> the camera is the correct setting.
> 
> [amr]
> 
> octet-aligned=1
> 
>  
> 
> ------------------------
> 
>  
> 
> I’ve done some debugging in app_rtsp.c and found that:
> 
>  
> 
> This comparision ‘if (sdp->audio->formats[i]->format & chan->nativeformats)’ in app_rtsp.c fails.
> 
>  
> 
> the value of format is 0x00002000
> 
> the value of nativeformats is 0x00580004
> 
>  
> 
> I also get this warning
> 
> [Jul 11 16:36:45] WARNING[31498]: channel.c:2800 set_format: Unable to find a codec translation path from 0x580004 (ulaw|h263|h263p) to 0x0 (nothing)
> 
>  
> 
> I’m not sure why only ulaw,h263,h263p show up, but they are the only protocols I have enabled in xlite, so that could be it, but the 0x0 (nothing) I don’t know.
> 
>  
> 
> Some debug code (my app_rtsp line #’s might be off a bit as I added some debug statements)
> 
>  
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:421 RtspPlayerDescribe: >DESCRIBE [/live2.sdp]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:442 RtspPlayerDescribe: <DESCRIBE [/live2.sdp]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:1081 rtsp_play: -rtsp play loop [0]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:1190 rtsp_play: -Receiving describe
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [v=0]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [o=RTSP 1215786675 889 IN IP4 0.0.0.0]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [s=RTSP server]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [c=IN IP4 0.0.0.0]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [t=0 0]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=charset:Shift_JIS]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=range:npt=0-]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=control:*]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=etag:1234567890]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [m=video 0 RTP/AVP 96]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:689 CreateMedia: -creating media [1,m=video 0 RTP/AVP 96]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [b=AS:0]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=rtpmap:96 MP4V-ES/30000]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=control:trackID=2]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=fmtp:96 profile-level-id=3;config=000001B003000001B2464D5F5047204D6F6465000001B509000001000000012000C48881F450A041E1463F;decode_buf=76800]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [m=audio 0 RTP/AVP 97]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:689 CreateMedia: -creating media [1,m=audio 0 RTP/AVP 97]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [b=AS:13]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=rtpmap:97 AMR/8000]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=control:trackID=4]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=maxptime:200]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=fmtp:97 decode_buf=400;octet-align=1]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [1F450A041E1463F;decode_buf=76800]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [m=audio 0 RTP/AVP 97]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:689 CreateMedia: -creating media [1,m=audio 0 RTP/AVP 97]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [b=AS:13]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=rtpmap:97 AMR/8000]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=control:trackID=4]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=maxptime:200]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:744 CreateSDP: -line [a=fmtp:97 decode_buf=400;octet-align=1]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:1249 rtsp_play: -audio [8192,97,trackID=4]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:1264 rtsp_play: !(sdp->audio->formats[i]->format & chan->nativeformats) fmt 00002000 nfmt 00580004 -audio [97,trackID=4]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:1274 rtsp_play: -video [4194304,96,trackID=2]
> 
> [Jul 11 16:36:45] WARNING[31498]: channel.c:2800 set_format: Unable to find a codec translation path from 0x580004 (ulaw|h263|h263p) to 0x0 (nothing)
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:505 RtspPlayerSetupVideo: -SETUP VIDEO [trackID=2]
> 
> [Jul 11 16:36:45] DEBUG[31498]: app_rtsp.c:557 RtspPlayerPlay: -PLAY [/live2.sdp]
> 
> 
> ------------------------------------------------------------------------
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