<div dir="ltr"><div><div>I've just recently added v4l2src as a video source to my application. I'm having trouble with the default pipeline negotiation though. Right now the pipeline is negotiating for maximum image size and a correspondingly minimum framerate. As a result I end up with images that are 1600x1200 but at 5 fps.<br>
<br>I'd prefer to have the negotiation aim for the highest possible framerate not over 30 fps, and take whatever reduction in frame size that would correspond to that. However, I don't want to hard-code any particular framerate as most cameras seem to only support a fixed set of rates, and I don't know what rates the attached camera will support.<br>
<br></div>I had originally hoped to use a capsfilter with a caps like<br><br> framerate=(fraction)[30/1,5/1]<br><br></div>to indicated the range of framerates I'm looking for, with a preference for the high end. However neither that nor any other scheme I've tried has worked. Am I going to have to write a custom capsfilter element to do what I want, or is there some other way that I'm just not seeing?<br>
<br clear="all"><div><div><div><div><br>-- <br>Stirling Westrup<br>Programmer, Entrepreneur.<br><a href="https://www.linkedin.com/e/fpf/77228" target="_blank">https://www.linkedin.com/e/fpf/77228</a><br><a href="http://www.linkedin.com/in/swestrup" target="_blank">http://www.linkedin.com/in/swestrup</a><br>
<a href="http://technaut.livejournal.com" target="_blank">http://technaut.livejournal.com</a><br><a href="http://sourceforge.net/users/stirlingwestrup" target="_blank">http://sourceforge.net/users/stirlingwestrup</a>
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