How do i play corrupted mp4 file recorded by camera of Galaxy s4?

[AC Question]

I was video recording and battery of my Galaxy S4 got drained out completely. After charging the device I checked the same file but it showed 'cannot play video'. I tried transferring file to PC & convert it but it din't help as app said unsupported format. I also tried repairing mp4 file with some mp4 repair tool apps. But all of them showed notice 'file format unsupported'. Please help me as this video is very important for me.