[Libav-user] how to send av packets to rtmp server when changing encoding setting

[qw]

Hi,


I have one question about sending rtmp stream.


If audio/video encoding settings are not changed, I can send only once one data message of '@setDataFrame', one audio message of 'AAC sequence header', and one video message of 'AVC sequence header'. But I want to change audio or video encoding setting in the middle, such as width, height, and sample rate. Then I need send the three important RTMP messages again, i.e. '@setDataFrame', 'AAC sequence header', 'AVC sequence header'. But I can't call twice avformat_write_header(). How to update my new A/V encoding setting in the same RTMP session?


Thanks!


Regards


Andrew
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