H.264 (Mpeg4) Videos are mainly stored in a Container called MKV.
But iPhones, iPads and other Devices can’t play this Container Format – but they can play H.264.
One way is to Encode your complete H.264 Video with a MKV Container to an H.264 Video with a MP4 Container.
But why to Re-Encode an H.264 Video to an H.264 Video only to change the Container Format?
The better Solution is to Pass Thru the Video and Audio Stream and only change the Container.
Option 1: The Subler can do this for you.
Simply create a new File, add your Videos and Save As .m4v
Option 2: The MKVTool can do this for you.
Simply select the Pass Thru Options and your 1080p Video has a new MP4 Container in Seconds.
