mp4: restarting video track in loop

Test file: Aorta_Clip112.mov Tested versions: 3.0.8, 3.0.9 RC

The following can be seen repeatetly in the logs

videotoolbox debug: new SPS parsed: 0
videotoolbox debug: new PPS parsed: 0
videotoolbox warning: forcing CVPX format: 420v
videotoolbox info: Using Video Toolbox to decode 'h264'
main debug: using video decoder module "videotoolbox"
videotoolbox warning: Interlaced content: forcing VT to output I420
videotoolbox warning: restarting vt session (color changed)
videotoolbox warning: forcing CVPX format: y420
mp4 warning: recreate ES for track[Id 0x2]
videotoolbox info: vt cvpx chroma: y420
main debug: trying to reuse free vout
main debug: removing module "freetype"