Stay in the current window and input your HEVC video with command: ffmpeg -i input.mkv -x265-params crf=25 output.mp4 to convert HEVC/H.265 MKV Video to AVC/H.264 MP4 with FFmpeg. Step 3: Use FFmpeg to decode HEVC to H.264. Be sure to alter the command so that reflects the folder path from your root to. Unpack the zip in the folder of your choice and open a command prompt with administrators' rights. For example, I'm running on Windows 7 (32-bit), thus I downloaded the Windows-32bit one. Choose the right one according to your system type. Step 1: Download a ffmpeg static build zip file here. Anyway, I converted a HEVC MKV video to H.264 MP4 with ffmpeg for a test. Worse still, after program installed, the errors like 'unrecognized option x265-params', 'fail to set value for crf', 'unable to read files' happen frequently. Many users, especially the green hands feel at a loss even on installing ffmpeg on computer. You can transcode h265 to h264 with ffmpeg indeed, but this HEVC encoder can be a little difficult to work, especially as it has so many options. And FFmpeg, as a free software project that produces libraries and programs for handling multimedia data would come to your mind firstly.

To do this, a H265 to H264 converter is in demand. How to Convert HEVC/H.265 MKV Video to AVC/H.264 MP4 with FFmpeg

How to use ffmpeg to convert h.265