encode video into three different formats using ffmpeg on one button click -


i facing problem in converting/encoding video 3 formats i-e; webm, mp4 , flv on video upload @ 1 button click. problem videos converting , or not. example when trying convert mp4 flv mp4 videos converting , not. using command convert it. tried other commands 1 working few mp4 files other 1 not working file. here command

ffmpeg -i input.mp4 -c:v libx264 -crf 28 output.flv

which put php code 

passthru("ffmpeg -i input.mp4 -c:v libx264 -crf 28 output.flv")

i facing issues converting avi , ogg files mp4, webm , flv. strange. please help.

thanks

you have not specified acodec parameter 

ffmpeg -i input.mp4 -acodec libvo_aacenc -vcodec libx264 -crf 28 output.flv

even if, doesn't check error, give clue add.


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