WMC: FFmpeg

This is a port of FFmpeg for browsers. FFmpeg is a library that allows you to convert and manipulate multimedia data.

For full documentation of FFmpeg, visit the project website at ffmpeg.org.

File processing may take some time. It depends on the size of the file. At the same time your browser may slow down noticeably.

The following are examples of commands. Replace {INPUT} with the name of your input file.

Get video file information:

-i {INPUT}

Video to GIF:

-t 5 -i {INPUT} -vf showinfo -strict -2 output.gif

Video to screenshots:

-i {INPUT} -s 100x100 -f image2 -vf fps=fps=1,showinfo -an out%d.jpeg

Vertical flip image:

-i {INPUT} -vf vflip output.jpeg

Cut MP4 from start for 3 seconds:

-ss 00:00:00.000 -i {INPUT} -t 00:00:03.000 -c copy output.mp4

Mute MP4:

-i {INPUT} -an output.mp4

Resize MP4:

-i {INPUT} -s 480x320 -c:a copy output.mp4

Extract audio (WAV) from WMV:

-i {INPUT} -vn -acodec copy output.wav

Video to MP4:

-i {INPUT} -vf showinfo -strict -2 output.mp4

Video to Flash Video (FLV):

-i {INPUT} -ab 26k -f flv output.flv

Video to WMV:

-i {INPUT} -y -vf scale=-1:360 output.wmv

Convert images into a video. In this example the input images are sequentially named image1.jpg, image2.jpg, image3.jpg, etc.

-framerate 1 -i image%d.jpg output.mp4

Deinterlace, flip horizontal, turn black and white a video:

-i {INPUT} -vf "yadif=0:0:0, hflip, hue=s=0" -strict -2 output.mp4