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01b61fafbf
During high graphics thread pressure it can take a significant time to acquire the graphics lock. This change releases the OpenGL texture after rendering to avoid the 2nd lock after sending the frame to FFmpeg. This improves 99%-tile/100%-tile and median encode in a near encoder overload scenario, and modestly raises the ceiling before encoder overload in my test scene. Master: min=0 ms, median=4.29 ms, max=33.072 ms, 99th percentile=8.877 ms min=0 ms, median=4.438 ms, max=77.157 ms, 99th percentile=9.853 ms min=0 ms, median=4.527 ms, max=57.292 ms, 99th percentile=9.282 ms This commit: min=0.97 ms, median=3.009 ms, max=13.215 ms, 99th percentile=5.899 ms min=1.181 ms, median=2.91 ms, max=9.854 ms, 99th percentile=5.56 ms min=0.461 ms, median=3.013 ms, max=10.693 ms, 99th percentile=5.871 ms