Ffmpeg Split Avi into Frames with Known Frame Rate

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?

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"

ffmpeg break up videos with frame persecond

Use

ffmpeg -ss {start_time} -t {duration} -i "vide.mp4" -vf fps=X -c:a copy out.mp4

where X is your output framerate.

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To segment the entire file,

ffmpeg -i "vide.mp4" -vf fps=X
  -f segment -segment_time {duration} -force_key_frames expr:gte(t,n_forced*{duration}) 
  -reset_timestamps 1 -segment_time_delta 1.0 -c:a copy out%d.mp4

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

Fastest way to extract frames using ffmpeg?

If the JPEG encoding step is too performance intensive, you could always store the frames uncompressed as BMP images:

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

This also has the advantage of not incurring more quality loss through quantization by transcoding to JPEG. (PNG is also lossless but tends to take much longer than JPEG to encode.)

Asking ffmpeg to extract frames at the original frame rate

To get the original frame rate:

ffmpeg -i file.mp4 2>&1 | grep -o '[0-9]\{1,3\}\sfps'

Example Output:

25 fps

You can futher pipe it to sed ... | sed 's/\sfps//' to keep only the 25, and store it into a variable, so you can use that variable to convert the videos e.g. ffmpeg -r $originalFps.

grep -o will extract the match, instead of the whole line containing the match.

[0-9]\{1,3\} will match one to three digits

\sfps will match a white space followed by 'fps'

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.)

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