When using ?start=secs with nginx mp4, video doesn't play for about 8 seconds although the audio keep playing well.

example:

http ://server/video.mp4 >>> plays correctly

http ://server/video.mp4?end=60 >>> plays correctly

http ://server/video.mp4?start=120 >>> starts audio playing with static image (video not working) for about 7-8 seconds.

I tried many MP4 files, all of them show first 7-8 seconds without video. All files have moov atom at beginning.

Seems like nginx don't get the starting video frame correctly, any advice?