Afaik, you should call av_lockmgr_register() to set a locking handler,
if you're calling ffmpeg APIs from multiple threads simultaneously.
Andy
On 11/9/2011 1:06 PM, Karoly Horvath wrote:
Hi guys,
I have multiple threads which do simultaneous demultiplexing for different
streams.
Most of the times it works fine, but sometimes a see these messages at
startup:
[NULL @ 0x7fffa4006120] insufficient thread locking around
avcodec_open/close()
Also it sometimes fails to do avcodec_open (it's the same stream, nothing
changed..)
I have a global mutex for the threads so at any point only one thread can
make those API calls.
Any idea what the problem is?
thx
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