[Libav-user] av_buffersink_get_frame_flags always returns EAGAIN

[Philippe Gorley]

Hi,

I'm implementing multi input filters in our application. Every call to 
av_buffersink_get_frame_flags returns EAGAIN, even if I push all the 
frames to my buffer sources beforehand.

I've written an example of what I'm doing here: 
https://pastebin.com/WBANDTkh

I'm generating dummy video frames, downsizing one of them and then 
overlaying it over the other.

I think the problem might be linked with the NaN value in this log: 
[Parsed_overlay_1 @ 0x2429f80] n:1.000000 t:0.000000 pos:nan 
x:230.000000 xi:230 y:170.000000 yi:170

Any help on what I'm doing wrong is greatly appreciated.

Thanks,

-- 
Philippe Gorley
Free Software Consultant | Montréal, Qc
Savoir-faire Linux