I have HCL me u1 android Tablet with following specs.

  • Android 4.0 rooted
  • display : 800x480
  • 1 gb ram
  • 1 GZH single core cortex a8 processor
  • 5.5 GB free space
  • Usb port

this tab is used only for watching movies with Mx Player App. Mx Player can smoothly play x264 (480p AND 720p AND 1080p) on Hw or Hw+ mode,but not on Sw mode.

But for hevc or x265 (480p OR 720p OR 1080p) video it cant play smoothely,The A-V sync is horrible.

I guess processor is too old for x265 format. So I convert x265 to x264 on pc using Handbrake (time 5 to 6 hours) and then I play x264 video on Tablet.

I am wondering If I could use my tablet for x265 to x264 conversion (tablet can be pluged to charging all the day or even more than 1 day,so no problem of power supply).

does anybody know any app to convert x265 video to x264 video on android?

  • 1
    If the SoC is too old for playback (decode) of the format then certainly it'll perform even worse at converting (decode and re-encode) it. You can't expect it to take a reasonable time to complete on your tablet when it already takes hours on your way more powerful PC.
    – Andy Yan
    Commented Sep 19, 2017 at 8:40
  • this is not answer
    – kaushikC
    Commented Sep 19, 2017 at 9:01
  • and I assume anyone who downvoted ,either tapped dropdown arrow accidently or have no IDEA what I AM ASKING for!!!
    – kaushikC
    Commented Sep 19, 2017 at 9:05
  • I didn't put it as an answer either. Also, the -1 (not by me BTW) is for something else - app recommendations are explicitly off-topic on Android.SE.
    – Andy Yan
    Commented Sep 19, 2017 at 9:14
  • If you think people are not grasping the idea, it's up to you to explain it further via edits.
    – Andy Yan
    Commented Sep 19, 2017 at 9:16

1 Answer 1


You may do the conversion using the ffmpeg tool:

  1. Download Termux for Android
  2. Install ffmpeg binary by apt-get install ffmpeg
  3. The command to convert x265 to x264:

ffmpeg -i input.mkv -c:a copy -x265-params crf=25 output.mp4

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