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How can I use ffmpeg to change the frame rate (fps) of a video file?

Dean Turcotte ∙

Lvl 10

∙ 3mo ago

Updated: 1/15/2025

To change the frame rate of a video file using ffmpeg, you can use the command:

ffmpeg -i input.mp4 -r 30 output.mp4

In this command, replace "input.mp4" with the name of your input video file and "output.mp4" with the desired name of the output file. The "-r 30" flag sets the frame rate to 30 frames per second.

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Related Questions

How can I use ffmpeg to change the frame rate of a video file?

To change the frame rate of a video file using ffmpeg, you can use the following command: ffmpeg -i input.mp4 -r 30 output.mp4 In this command, replace "input.mp4" with the name of your input video file and "output.mp4" with the desired name of your output video file. The "-r 30" flag specifies the new frame rate you want to set, in this case, 30 frames per second.

How can I use ffmpeg to extract the first frame from a video file?

You can use ffmpeg to extract the first frame from a video file by running the following command in the terminal: bash ffmpeg -i inputvideo.mp4 -vframes 1 outputimage.jpg This command will extract the first frame from the input video file "inputvideo.mp4" and save it as an image file "outputimage.jpg".

How can I use ffmpeg to extract a single frame from a video?

You can use ffmpeg to extract a single frame from a video by specifying the input video file and the output image file with the desired frame number. Use the command "ffmpeg -i inputvideo.mp4 -vf select'eq(n,framenumber)' -vsync vfr outputimage.jpg" to extract the frame.

How can I use ffmpeg to set the frame rate (fps) of a video file?

To set the frame rate (fps) of a video file using ffmpeg, you can use the "-r" flag followed by the desired frame rate value. For example, to set the frame rate to 30 fps, you would use the command: ffmpeg -i input.mp4 -r 30 output.mp4 This command will change the frame rate of the video file "input.mp4" to 30 frames per second and save it as "output.mp4".

How can I use ffmpeg to extract a specific frame from a video file?

To extract a specific frame from a video file using ffmpeg, you can use the command: ffmpeg -i input.mp4 -vf "selecteq(n,framenumber)" -vsync vfr output.jpg Replace input.mp4 with the name of your video file, and framenumber with the specific frame number you want to extract. This command will save the extracted frame as output.jpg.

How can I use ffmpeg to reduce the frame rate of a video file?

To reduce the frame rate of a video file using ffmpeg, you can use the command "ffmpeg -i input.mp4 -r 24 output.mp4" where "-r 24" specifies the desired frame rate (in this case, 24 frames per second). This command will create a new video file with the reduced frame rate.

How can I use ffmpeg to convert a series of jpg images into an mp4 video file?

To convert a series of jpg images into an mp4 video file using ffmpeg, you can use the following command: ffmpeg -framerate frame rate -i imaged.jpg output.mp4 Replace frame rate with the desired frame rate of the video. This command will create an mp4 video file named output.mp4 from the jpg images in the current directory.

How can I use ffmpeg to extract a frame from a video?

You can use ffmpeg to extract a frame from a video by specifying the input video file and the output image file with the desired frame number. The command would look like this: bash ffmpeg -i inputvideo.mp4 -vf "selecteq(n,framenumber)" -vsync vfr outputimage.jpg Replace inputvideo.mp4 with the name of your video file, framenumber with the specific frame number you want to extract, and outputimage.jpg with the name you want to give to the extracted frame.

How can I use ffmpeg to extract every nth frame from a video file?

To extract every nth frame from a video file using ffmpeg, you can use the command: ffmpeg -i input.mp4 -vf "selectnot(mod(n,n))" output.mp4 Replace "input.mp4" with the name of your input video file and "output.mp4" with the desired name of the output file. Replace "n" with the desired interval of frames you want to extract. This command will extract every nth frame from the video file.

How can I use ffmpeg to set the frame rate for a video file?

You can use ffmpeg to set the frame rate for a video file by using the "-r" option followed by the desired frame rate value. For example, to set the frame rate to 30 frames per second, you would use the command: "ffmpeg -i input.mp4 -r 30 output.mp4".

How can I use ffmpeg to change the aspect ratio of a video file?

To change the aspect ratio of a video file using ffmpeg, you can use the command line with the "scale" filter. Specify the desired aspect ratio by setting the width and height values, and ffmpeg will resize the video accordingly.

How can I use ffmpeg to change the framerate of a video file?

To change the framerate of a video file using ffmpeg, you can use the following command: ffmpeg -i input.mp4 -r 30 output.mp4 In this command, "input.mp4" is the name of your original video file and "output.mp4" is the name you want for the new video file with the changed framerate. The "-r 30" flag specifies the new framerate you want to set, in this case, 30 frames per second.

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