Extract all video frames as images with FFMPEG

Question

I am trying to convert a MP4 video file into a series of jpg images (out-1.jpg, out-2.jpg etc.) using FFMPEG with,

mkdir frames
ffmpeg -i "%1" -r 1 frames/out-%03d.jpg

However I keep getting errors like,

[image2 @ 00000037f5a811a0] Could not open file : frames/out-C:\Applications\FFMPEG\toGIF.bat3d.jpg av_interleaved_write_frame(): Input/output error frame= 1 fps=0.0 q=5.9 Lsize=N/A time=00:00:01.00 bitrate=N/A video:63kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Conversion failed!

If I take out the %03d part, the conversion works but it only outputs the first frame and the program stops with error.

How can I correctly extract all the frames of the video with FFMPEG?

Gyan · Accepted Answer · 2016-01-14T10:43:00.923

92

Use

ffmpeg -i "%1" frames/out-%03d.jpg

A sequence of image files don't have a framerate. If you want to undersample the video file, use -r before the input.

Edit:

ffmpeg -i "C:\Applications\FFMPEG\aa.mp4" "frames/out-%03d.jpg"

edited Jan 14 '16 at 10:43

answered Jan 14 '16 at 10:16

Gyan

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Okay found the issue finally, it seems that Windows needs %%, as in out-%%03d.jpg – user780756 Jan 14 '16 at 10:56
Yes, it's a Windows .bat file – user780756 Jan 14 '16 at 10:57
3

Yes, in a script, you need to escape special characters. – Gyan Jan 14 '16 at 11:00
How can I get the frames as .h264 ? – Traoré Moussa May 21 '19 at 17:47
2

to [change framerate](https://trac.ffmpeg.org/wiki/Slideshow#Framerates) before `-i`, enter `-framerate`. To specify framerate for output after `-i` enter `-r` – Zimba Feb 16 '21 at 03:27

Zimba · Answer 2 · 2021-02-16T04:48:16.240

4

Try:

ffmpeg -i file.mpg -r 1/1 $filename%03d.bmp

or

ffmpeg\ffmpeg -i file.mpg test\thumb%04d.jpg -hide_banner

Note:

to change framerate before -i, enter -framerate. To specify framerate for output after -i enter -r
-filter:v -fps=fps=... or -vf fps=... is more accurate than -r

eg.

ffmpeg -i myvideo.avi -vf fps=<NO. of images>/<per no. of seconds> img%0<padding No. of digits>d.jpg

edited Feb 16 '21 at 04:48

answered Feb 15 '21 at 08:35

Zimba

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what is the difference between %04d and %03d? – Cristian Sepulveda Apr 09 '21 at 01:19
1

%04d -> 4 digits (0000, 0001, 0002, etc) %03d -> 3 digits (000, 001, 002, etc). – JavDomGom Dec 25 '21 at 19:00
@CristianSepulveda: The answer to your question is in the provided code sample: "-vf fps=<`NO. of images`>/<`per no. of seconds`> img%0<`padding No. of digits`>d.jpg". Good job JavDomGom – Zimba Jan 06 '22 at 08:34
It worked , but the output images are in low quality compared to video. Any fix for that? – tikendraw Dec 07 '22 at 08:02

score 2 · Answer 3 · answered Jun 08 '21 at 23:39

2

%04d will produce image-names with 4 digits like 0001, 0002 etc. And %03d will produce images with names like 001, 002 etc.

answered Jun 08 '21 at 23:39

user12405848

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score -3 · Answer 4 · answered Feb 06 '22 at 10:31

-3

Impossible to do in a windows batch file because every %x are interpreted as prameters passed to batch file

answered Feb 06 '22 at 10:31

phoenix10

1

5

"Impossible" is such a harsh word... Easy to overcome: escape the `%` with another`%`: `%%x` works (as the asker already found out [7 years ago](https://stackoverflow.com/questions/34786669/extract-all-video-frames-as-images-with-ffmpeg#comment57319040_34786929)). – Stephan Feb 06 '22 at 11:21

Extract all video frames as images with FFMPEG

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