Converting Avi Frames to Jpgs on Linux

Converting AVI Frames to JPGs on Linux

Use ffmpeg.

ffmpeg -i infile.avi -f image2 image-%03d.jpg

Check out this answer on stackoverflow, as pointed out by Chris S.

I also found this article entitled "Creating Animated Screenshots on Linux" which details the process of using mencoder to capture sequential screenshots. (The end of the article discusses taking those screenshots and encoding them into another format, but you can disregard that part.)

Converting AVI Frames to JPGs on Linux

Use ffmpeg.

ffmpeg -i infile.avi -f image2 image-%03d.jpg

Check out this answer on stackoverflow, as pointed out by Chris S.

I also found this article entitled "Creating Animated Screenshots on Linux" which details the process of using mencoder to capture sequential screenshots. (The end of the article discusses taking those screenshots and encoding them into another format, but you can disregard that part.)

ffmpeg split avi into frames with known frame rate

ffmpeg -i myfile.avi -r 1000 -f image2 image-%07d.png

I am not sure outputting 150k bmp files will be a good idea. Perhaps png is good enough?

how to convert avi file to an jpg's images array using .net

You can do this from the command line with ffmpeg. See this part of the documentation. For example,

ffmpeg -i infile.avi -f image2 image-%03d.jpg

will save all frames from infile.avi as numbered jpegs (image-001.jpg, image-002.jpg,...). You can then use other command line options to get just the frames you want or do some other post processing like resizing or deinterlacing.

You could just create a program in .NET that calls the ffmpeg executable with the right command line and moves the resulting files into the correct place. It would be much easier than trying to use some video library directly.

FFMPEG- Convert video to images

You can use the select filter for a set of custom ranges:

ffmpeg -i in.mp4 -vf select='between(t,2,6)+between(t,15,24)' -vsync 0 out%d.png

Convert a video file to an image sequence of equal length?

Assuming your video is constant frame rate (avg_frame_rate should be same as r_frame_rate),

use

ffmpeg -i Forest.mp4 -vsync 0 forest/jpegs%06d.jpg

Extract all video frames as images with FFMPEG

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"

Capture JPEG frame from avi file using ffmpeg library. How to open captured files?

This is how we do it on a web server. The following php code will create a 640x480 jpeg from an mp4 providing you have ffmpeg installed and the output folder is writable by ffmpeg, I have not tested it on an .avi

// the input movie file
$video_file = some.mp4;

// the frame to capture
$thumb_position = 60;

// the output .jpg file
$output_file = 'folder/some.jpg'

// form the ffmpeg command
$cmd = "ffmpeg -y -i $video_file -ss $thumb_position -q 1 -b:v 3024k -vframes 1 -s 640x480 -r 1 -f mjpeg $output_file";

// run command and capture ffmpeg response
$output = '';
@exec("$cmd 2>&1",$output); 

// display ffmpeg response
foreach($output as $output1) echo "" . $output1 ."<br>\n";

---

Related Topics