videoio: turn off synchronized sink in GStreamer#19072
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opencv-pushbot merged 1 commit intoopencv:3.4from Dec 10, 2020
Merged
videoio: turn off synchronized sink in GStreamer#19072opencv-pushbot merged 1 commit intoopencv:3.4from
opencv-pushbot merged 1 commit intoopencv:3.4from
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alalek
approved these changes
Dec 10, 2020
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| if (!manualpipeline) | ||
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| gst_base_sink_set_sync(GST_BASE_SINK(sink.get()), FALSE); |
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v4l2src
GStreamerCapture::open(int id) provides "manual" pipeline, so its behavior is not changed
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Yes, but it is also possible to pass URI, e.g. v4l2:///dev/video1 which will create automatic pipeline with urisourcebin.
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Disabled synchronization with video stream rate for file/URI input in GStreamer VideoCapture backend. By default video decoding is performed with same rate as file FPS and manual pipeline configuration was required to avoid it.
related(?): #5766
Note: did not test it with cameras (v4l2://) and network streams (rstp://, http://, etc.).
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Patch to opencv_extra has the same branch name.