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Re: [Linphone-developers] "Must catchup" Warning


From: Simon Morlat
Subject: Re: [Linphone-developers] "Must catchup" Warning
Date: Fri, 22 Apr 2005 12:43:05 +0200
User-agent: KMail/1.7.2

hi,

Linphone says it's late in processing audio data. This may have two origins:
- 100% cpu  (processor not enough performant for the codec processing)
- blocking syscalls (especially ones for sound I/O).

Simon

Le Lundi 18 Avril 2005 15:17, Guillaume GOURAT a écrit :
> Hi,
>
> I have an arm 920t platform (samsung s3c2410) with the last version of alsa
> but I use OSS emulation because i have an issue when using alsa native
> interface. I have compiled linphone, it work but i have some problems :
>
> I have a lot of "Must catchup" Warning. What is the cause of this warning ?
> It appear randomly during the call, or systematically when playing ring or
> dtmf.
>
> [root@(none) /root]$linphonec
> Message:Found /dev/dsp.
> Warning:dsp block size set to 2048.
> DEBUG: [get_output_if] connect: Network is unreachable
> Message:Adding new codec PCMU/8000
> Message:Adding new codec GSM/8000
> Message:Adding new codec PCMA/8000
> Message:Adding new codec speex/8000
> Message:Adding new codec speex/16000
> Message:Adding new codec 1015/8000
> Ready.
> linphonec> c sip:address@hidden
> Contacting  sip:address@hidden
> Warning:Local loopback network only !
> linphonec> Message:CALL_RINGING
>
> Message:Remote ringing...
> Warning:dsp block size set to 2048.
> Message:ms_filter_add_link: ringplay,0 -> OssWrite,0
> Message:Opening sound card [/dev/dsp (Open Sound System)] in playback mode
> with stereo=0,rate=8000,bits=16
> Warning:dsp block size set to 2048.
> Message:dsp blocksize is 2048.
> Warning:Must catchup 106 miliseconds.
> Warning:Must catchup 89 miliseconds.
> Warning:Must catchup 71 miliseconds.
> Warning:Must catchup 54 miliseconds.
> Message:CALL_ANSWERED
>
> Connected.
> Message:Mediastreamer processing thread is exiting.
> Message:Closing writing channel of soundcard.
> Warning:Local loopback network only !
> Message:ms_filter_add_link: OssRead,0 -> MULAWEncoder,0
> Message:ms_filter_add_link: MULAWEncoder,0 -> RTPSend,0
> Message:ms_filter_add_link: RTPRecv,0 -> MULAWDecoder,0
> Message:ms_filter_add_link: MULAWDecoder,0 -> OssWrite,0
> Message:Opening sound card [/dev/dsp (Open Sound System)] in capture mode
> with stereo=0,rate=8000,bits=16
> Warning:dsp block size set to 2048.
> Message:dsp blocksize is 2048.
> Message:Opening sound card [/dev/dsp (Open Sound System)] in playback mode
> with stereo=0,rate=8000,bits=16
> Message:CALL_STARTAUDIO
>
> Warning:Must catchup 114 miliseconds.
> Warning:Must catchup 96 miliseconds.
> Warning:Must catchup 78 miliseconds.
> Warning:Must catchup 58 miliseconds.
> Warning:Must catchup 111 miliseconds.
> Warning:Must catchup 93 miliseconds.
> Warning:Must catchup 74 miliseconds.
> Warning:Must catchup 56 miliseconds.
> Message:Receiving dtmf 8.
> Warning:Must catchup 79 miliseconds.
> Warning:Must catchup 60 miliseconds.
> Warning:Must catchup 121 miliseconds.
> Warning:Must catchup 311 miliseconds.
> Warning:Must catchup 296 miliseconds.
> Warning:Must catchup 371 miliseconds.
> Warning:Must catchup 354 miliseconds.
> Warning:Must catchup 339 miliseconds.
> Warning:Must catchup 321 miliseconds.
> Warning:Must catchup 304 miliseconds.
> Warning:Must catchup 288 miliseconds.
> Warning:Must catchup 272 miliseconds.
> Warning:Must catchup 255 miliseconds.
> Warning:Must catchup 238 miliseconds.
> Warning:Must catchup 219 miliseconds.
> Warning:Must catchup 200 miliseconds.
> Warning:Must catchup 181 miliseconds.
> Warning:Must catchup 162 miliseconds.
> Warning:Must catchup 143 miliseconds.
> Warning:Must catchup 123 miliseconds.
> Warning:Must catchup 104 miliseconds.
> Warning:Must catchup 84 miliseconds.
> Warning:Must catchup 64 miliseconds.
> Message:Receiving dtmf 9.
> Warning:Must catchup 77 miliseconds.
> Warning:Must catchup 59 miliseconds.
> Warning:Must catchup 130 miliseconds.
> Warning:Must catchup 201 miliseconds.
> Warning:Must catchup 186 miliseconds.
> Warning:Must catchup 259 miliseconds.
> Warning:Must catchup 243 miliseconds.
> Warning:Must catchup 226 miliseconds.
> Warning:Must catchup 209 miliseconds.
> Warning:Must catchup 189 miliseconds.
> Warning:Must catchup 170 miliseconds.
> Warning:Must catchup 151 miliseconds.
> Warning:Must catchup 133 miliseconds.
> Warning:Must catchup 114 miliseconds.
> Warning:Must catchup 95 miliseconds.
> Warning:Must catchup 75 miliseconds.
> Warning:Must catchup 56 miliseconds.
>
>
> Thanks,
>
> Guillaume GOURAT.
>
>
>
>
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