[Asterisk-video] symbol lookup errors sws_getContext

[Emmanuel BUU]

You probably built the app_transcode application with an ffmpeg lib that 
you downloaded and when it runs, it loads uses another library that may 
come with your system.

Check how many ffmpeg libs you have and which version you are using. The 
symbol that you mention is most probably from the libswscale.so (used to 
resize the pictures).

Emmanuel

http://www.ives.fr/

matteo crivellaro a écrit :
> Hi,
> my webcam (Linksys WVC54GCA) supports the rtsp mobile streaming (I think it is 3gp).
> A part of my dialplan is:
>
>
> [asgard]
> exten=>goblin,1,h324m_gw_answer() exten=>goblin,n,transcode(,s at camera1,h263 at qcif/fps=10/kb=52/qmin=4/qmax=12/gs=50)
>
> [camera1]
> exten => s,1,Answer
> exten => s,2,rtsp(rtsp://20.1.1.2:554/12345)
> exten => s,3,HangUp
>
>
> where 12345 is the code required by webcam and 554 is the rtsp port.
>
> When I start a video call appear the following errors:
>
> WARNING: app_rtsp.c:1037 rtsp_play: >rtsp play
> WARNING: app_transcoder.c:963 app_transcode:>Transcoding[,s at camera1,h263 at qcif/fps=10/kb=52/qmin=4/qmax=12/gs=50]
> WARNING: channel.c:2781 set_format: Unable to find a codec translation path form unknown to unknown
> asterisk: symbol lookup error: /usr/lib/asterisk/modules/app_transcoder.so: undefined synbol: sws_getContext
>
> Can you help me?
>
> Regards, Matteo.
>
>  
>
>
>
>
> Matteo Crivellaro
> Cassetta
> e-mail:
> teo.crivellaro at libero.it
> 042653823
> C. Battisti 13/B
> Cavarzere (Ve) Italy
>
>
>
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