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Hi <br>
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I have a question on frame rate on gstreamer in coding. I have set a caps filter after the video src (v4l2src)<br>
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A code snippet<br>
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GstCaps *caps;
<div> caps = gst_caps_new_simple("video/x-raw",</div>
<div> "width", G_TYPE_INT, 640,</div>
<div> "height", G_TYPE_INT, 480,</div>
<div> "framerate", GST_TYPE_FRACTION, 30, 1,</div>
<div> "is-live", G_TYPE_BOOLEAN, TRUE,</div>
NULL);</div>
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if((gst_element_link_filtered(src,
<div> caps))!=TRUE)</div>
<div>{</div>
<div> g_print(" Could not link pipeline\n");</div>
<div> gst_object_unref (GST_OBJECT (pipeline));</div>
<div> return 0;</div>
<span>}</span><br>
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I have 3 branches to the source (1) Display (2) Records (3) sending video elsewhere. But it is only at caps, I define the size of video and the frame rate to collect<br>
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Video play smoothly. However when I changed to a lower value of framerate to 25, the video refuse to play. I wonder why? isnt the lower framerate would have lesser stress on the system resource<br>
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A little other experiment that I have done using command line:<br>
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Pipeline play<br>
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>> gst-launch-1.0 -v v4l2src device=/dev/video0 ! video/x-raw, width=640, height=480, framerate=30/1 ! videoconvert ! autovideosink<br>
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Pipeline do not play<br>
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>> gst-launch-1.0 -v v4l2src device=/dev/video0 ! video/x-raw, width=640, height=480, framerate=25/1 ! videoconvert ! autovideosink</div>
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Would like suggestion on what to do next</div>
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Thanks<br>
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