ffmpeg-cheatsheet

for single image, please check:https://github.com/yangboz/imagemagick-cheatsheet

FFMPEG Cheatsheet.

Want to improve this cheat sheet? See the Contributing section!

Table of Contents

• Why FFMPEG?
• Prerequisites
• Installation
• Best Practices
• Tools
• Contributing

Why FFMPEG

FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. No matter if they were designed by some standards committee, the community or a corporation. It is also highly portable: FFmpeg compiles, runs, and passes our testing infrastructure FATE across Linux, Mac OS X, Microsoft Windows, the BSDs, Solaris, etc. under a wide variety of build environments, machine architectures, and configurations.

A complete, cross-platform solution to record, convert and stream audio and video. Converting video and audio has never been so easy.

TL;NR

Prerequisites

https://ffmpeg.org/documentation.html

Video format

mp4,avi,mpeg,flv...

Video Processing

Video codec

TL;NR

Installation

http://ffmpeg.org/download.html

Linux

apt-get install ffmpeg

yum install ffmpeg

MacOS

brew install ffmpeg

Windows

https://ffmpeg.org/download.html#build-windows

Memory Constraints

Overview

 _______              ______________
|       |            |              |
| input |  demuxer   | encoded data |   decoder
| file  | ---------> | packets      | -----+
|_______|            |______________|      |
                                           v
                                       _________
                                      |         |
                                      | decoded |
                                      | frames  |
                                      |_________|
 ________             ______________       |
|        |           |              |      |
| output | <-------- | encoded data | <----+
| file   |   muxer   | packets      |   encoder
|________|           |______________|

Cheatsheet

ffmpeg [global_options] {[input_file_options] -i input_url} ... {[output_file_options] output_url} ...

Info

ffmpeg info

mp4 to avi:

ffmpeg -i input.mp4 output.avi

gif to mp4:

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

webm to mp4:

ffmpeg -i movie.webm movie.mp4

Resize:

Extract to images

ffmpeg -i video.mpg image-%04d.jpg 

pngs to video

ffmpeg -framerate 30 -pattern_type glob -i '*.png' \
  -c:v libx264 -pix_fmt yuv420p out.mp4

take snapshot of video

ffmpeg -i VID_20200720_092249.mp4 -y -f image2 -ss 08.010 -t 0.001 -s 352x240 b.jpg

Specifying start and end frames

ffmpeg -r 60 -f image2 -s 1920x1080 -start_number 1 -i pic%04d.png -vframes 1000 -vcodec libx264 -crf 25  -pix_fmt yuv420p output.mp4

jpgs to video with video filter

ffmpeg -framerate 10 -pattern_type glob -i '*.jpg' \
  -c:v libx264 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2"  -pix_fmt yuv420p out609cfbgs.mp4

jpgs to video with video filter

ffmpeg -framerate 10 -pattern_type glob -i '*.jpg' \
  -c:v libx264 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2"  -pix_fmt yuv420p out609cfbgs.mp4

add background music

ffmpeg -i audio.mp3 -i input.mp4 -filter_complex "[0:a][1:a]amerge,pan=stereo|c0<c0+c2|c1<c1+c3[out]" -map 1:v -map "[out]" -c:v copy -shortest output.mp4

LOOP AUDIO TO THE LENGTH OF VIDEO

ffmpeg \
    -i video1.mp4 -stream_loop -1 -i audio2.mp3 \
    -c:v copy \
    -shortest \
    -map 0:v -map 1:a \
    -y output.mp4

add loop background music to image

ffmpeg -loop 1 -i image.jpg -i background-music.mp3 \-c:v libx264 -tune stillimage -c:a aac -b:a 192k -pix_fmt yuv420p \-t 5 out-image.mp4

#### drawtext filter

-vf "drawtext=text=string1 string2 string3 string4 string5 string6 string7 :expansion=normal:fontfile=foo.ttf: y=h-line_h-10:x=(mod(5*n,w+tw)-tw): fontcolor=white: fontsize=40: shadowx=2: shadowy=2"

@more: https://superuser.com/questions/875058/loop-text-that-wipes-left-to-right-using-ffmpeg-drawtext-filter/1026470#1026470

#### GrayScale


#### Gray to RGB

#### Rotate 90

#### Flip


#### Flop

#### Resize

#### fasten video and audio

2X

ffmpeg -i input.mp4 -filter:v "setpts=0.5*PTS" -filter:a "atempo=2" outputX2.mp4

4X

ffmpeg -i input.mp4 -filter:v "setpts=0.25*PTS" -filter:a "atempo=2, atempo=2" outputX4.mp4

#### split video into X minutes chunks

ffmpeg -i source-file.foo -ss 0 -t 600 first-10-min.m4v

#### Background Transparent


#### wav to mp3

ffmpeg -i input-file.wav -vn -ar 44100 -ac 2 -b:a 192k output-file.mp3

####  HLS to mp4

ffmpeg -i http://.../playlist.m3u8 -c copy -bsf:a aac_adtstoasc output.mp4

## Contributing

Here's how to contribute to this cheat sheet.

### Open README.md

Click [README.md](https://github.com/wsargent/docker-cheat-sheet/blob/master/README.md) <-- this link

![Click This](images/click.png)

### Edit Page

![Edit This](images/edit.png)

### Make Changes and Commit

![Change This](images/change.png)

![Commit](images/commit.png)

### Tools

## References

https://github.com/yangboz/imagemagick-cheatsheet

https://ffmpeg.org/ffmpeg.html

https://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide/image_sequence

https://github.com/gradywoodruff/cheatsheet/blob/master/ffmpeg.md

https://stackoverflow.com/questions/18123376/webm-to-mp4-conversion-using-ffmpeg

### known issues

https://stackoverflow.com/questions/20847674/ffmpeg-libx264-height-not-divisible-by-2