Hi Matt,
 
Thanks for your response.  Yes I did call av_register_all();.  I also
used my C extern braces around <avcodec.h> and <avformat.h>.
 
What does avcodec_register_all() do?  Should this be called as well?
 
Your assistance is appreciated.
 
 

________________________________

From: [email protected]
[mailto:[email protected]] On Behalf Of Matthew Einhorn
Sent: 22 September 2011 10:01 PM
To: This list is about using libavcodec, libavformat,
libavutil,libavdevice and libavfilter.
Subject: Re: [Libav-user] Invalid Handle was specified - av_guess_format
/avformat_alloc_context


On Thu, Sep 22, 2011 at 10:13 AM, Marlon Reid <[email protected]>
wrote:


        
        Hi,
        
        I am experiencing problems with using av_guess_format /
avformat_alloc_context. In my sample code below, my application crashes
on "m_Outfmt = av_guess_format ( "mp3", NULL, NULL);" with the message
"Unhandled exception at 0x773b2865 in test.exe: 0xC0000008: An invalid
handle was specified." .


Have you called av register all before doing anything? Did you put the
include files declaration in extern C braces?

Matt

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