Question: how to convert hvc1 to h.264?
Answer: HEVC Taken with iPhone Won't Play? ... 
Free download and install VideoProc on Windows 10/8/7 (free download its Mac version), and follow the 3 simple steps below to easily convert H. ... 
Step 1: Add Source (iPhone) HEVC Video.
Step 2: Select H.264 (MP4) as Output.