id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1236	MP4 module	yan.sheng.upai.com@…		"#curl http://127.0.0.1:80/test.mp4?start=10

if start=10 is not the site of keyframe, the mp4 may have abnormal such as no picture before N second,or screen blurred.


I think the solution is to add the following step：
(1)stts：forcast the nearest sample on the basis of start=X
(2)stss：find the nearest keyframe sample on the basis of step (1)
(3)stts：find the nearest start arg on the basis of step (2)
...



"	defect	closed	minor		other	1.11.x	wontfix			4.9.0-rc3	1.11.2