using ffmpeg to convert gif to mp4 , output doesn't play on android

Question

I just use the following command to convert a gif file to mp4 but the resulting mp4 file doesn't play in android default video player .
what did I wrong ?
is there any aditional steps should I take to produce android playable mp4 files ?

$ ffmpeg -f gif -i infile.gif outfile.mp4

my test gif file : Test Gif File
My desktop played the output.mp4 very well using VLC Media Player and also MX Player on my android device played the video file without any error.

Superstructure

I think you could use ffmpeg -f gif -i file.gif -c:v libx264 outfile.mp4 – Gorblimey

Pl. refer to the below url unix.stackexchange.com/questions/40638/… Another way to convert GIF animation to video: ffmpeg -i your_gif.gif -c:v libvpx -crf 12 -b:v 500K output.mp4 -crf values can go from 4 to 63. Lower values mean better quality. -b:v is the maximum allowed bitrate. Higher means better quality. – Mcguire

Answer 1

Try this:

ffmpeg -i file.gif -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" out.mp4

Marguerite

Could you explain what this does? – Huth

@Huth the default codec is yuv444p which apparently can't be played in some mobile browsers (read: Mobile Safari and probably older mobile browsers in general). I googled the cryptic scale argument and found this: github.com/manateelazycat/deepin-screen-recorder/commit/… – Chally

Additionally, Safari I think only plays the file if both width and height are divisible by 2 which is what the cryptic -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" line "fixes" for you. – Chally