How to reproduce:
1. Open the attached project
2. Build and run on device
3. Let video loop
Result: at the end video stops for few seconds and at the beggining it is a bit late to start

DUT(reproducible):
5001, Asus P01Z, 5.0.2, 600x1024, x86, Mali-450
54, Samsung Galaxy Note II, 4.4.2, 720x1280, Samsung Exynos, ARM

Videos(Reproducible):
VP8_SD_180p.webm, 320x180, V_VP8, 626 kb/s, Vorbis, 2 44.1 kHz
VP8_SD_360p.webm, 640x360, V_VP8, 1 508 kb/s, Vorbis, 2, 44.1 kHz
VP8_HD_720p.webm, 1280x720, V_VP8, 3 515 kb/s, Vorbis, 2, 44.1 kHz
H264_HD_720p.mp4, 1280x720, h264 avc1, 2 205 kb/s, Main@L3.1, AAC/LC, 2, 44.1 kHz
H264_SD_360p.mp4, 480x360, h264 avc1, 500 kb/s, High@L2.1, AAC/LC, 2, 44.1 kHz

Reproducible: 2017.2.0a1 (80d4f3edb54f) trunk, 2017.1.0b6, 5.6.1p1(in this version videos don't loop properly. Sound is very choppy and video clip gets stuck)