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[Asterisk-video] symbol lookup errors sws_getContext

 
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teo.crivellaro at libero.
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PostPosted: Thu May 21, 2009 3:33 pm    Post subject: [Asterisk-video] symbol lookup errors sws_getContext

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@camera1,h263@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@camera1,h263@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@libero.it
042653823
C. Battisti 13/B
Cavarzere (Ve) Italy



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emmanuel.buu at ives.fr
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PostPosted: Fri May 22, 2009 10:09 am    Post subject: [Asterisk-video] symbol lookup errors sws_getContext

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 :
Quote:
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@camera1,h263@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@camera1,h263@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@libero.it
042653823
C. Battisti 13/B
Cavarzere (Ve) Italy



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