Ffmpeg crop from bottom. mp4 -vf crop=720:480:0:40 -vcodec copy -acodec copy 2.

Ffmpeg crop from bottom. It's especially useful for batch cropping multiple videos, but some (me included) might also prefer this over a fully Feb 5, 2025 · FFmpeg is a robust command-line utility that makes cropping images and videos both simple and efficient. mp4 ffmpeg -i inputfile. Aug 13, 2017 · I know that the below command will crop 25 from top and bottom ffplay -i input. If I was just rendering that video exactly as it is I wouldn’t Master video cropping and resizing with FFmpeg in this developer-friendly guide. com/ffmpeg-commands-and-exam Sep 2, 2020 · Using ffmpeg, I want to be able to crop an image so that the dimensions become equal. I used the following command and it does part of the job: ffmpeg -i testVideo. jpg ffmpeg crop image of size 3011x4928 and pan from bottom to top using 1080p with fixed x-coordinate = 545. I'd like to make a video like this: 3840 x 2160 resolution, mp4 output file starts and ends black image takes up ffmpeg crop image of size 3011x4928 and pan from bottom to top 10% of the image height (=492) each second. Dec 4, 2019 · The closest thing I found is this command ffmpeg -i in. jpg Or is it your player adding the padding to fit your screen when using fullscreen playback? What was wrong Raw ffmpeg-bottom-crop. Although it does not have that GUI Jan 9, 2023 · 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 Feb 10, 2022 · I want to create a moving crop through an existing video, in particular from near the middle to near the bottom left and then from bottom left to bottom right (the original video is Hi, I have a movie 640x480 and I need to cut 20px from bottom. We will also learn how to use variables for cropping the video. You would use ffprobe to Jan 12, 2023 · FFmpeg is underrated when it comes to modifying video or audio files. mov There are three output files specified, and for the first two, no -mapoptions are set, so ffmpeg will select Apr 29, 2022 · Well since others have mentioned their favorite alternatives to plain ffmpeg for this task, I'll just mention Avidemux. Learn essential FFmpeg cropping and resizing commands, and how to automate them using scripts. Both video sizes need to be 720x640. mp4 -codec copy -bsf:v h264_metadata=crop_left=200:crop_right=1240:crop_top=200:crop_bottom=610 output. https://daengood. mp4 -aspect 235:100 -c copy outputfile. May 25, 2016 · I have 2 inputs and I want to scale, crop and put them on top of each other at the same time. Now, one uses -vf crop= Jun 1, 2020 · Does the video have padding? An image would be helpful: ffmpeg -ss 60 -i "Maths Logic. mp4 -vf [FFmpeg-user] to crop the bottom Jim Shupert 12 years ago friends, I wish to crop off the bottom 40 lines of a 720x480 video and have the output 720x480 actually i wish to simply crop off the Mar 21, 2019 · 映像を指定座標に切り取る crop フィルタの使い方。 出力解像度はフレーム毎に変更できないがクロップする場所はフレーム毎に変更できる。. Upvoting indicates when questions and answers are useful. Top10 Commands for Lossless Video Manipulation using ffmpeg (Guide) ffmpeg is an amazing cross-platform open-source software with many different uses (you can use it for Sep 30, 2018 · How can I use ffmpeg to cut video in half, vertically or horizontally by resolution; so for a 640 x 480 video, I want to separate that into two halves with a resolution of 320 x 480, or 1 day ago · ffmpeg -i A. I would like a 2048x1024 resolution video with the upper Jul 29, 2025 · How to crop and scale correctly with FFMPEG?I'm trying to remove the TOP AND BOTTOM black bars of a video. Mar 18, 2024 · Video cropping and resizing are important techniques to control the visual aspects of a video. /input. For example, given input video width 1280px Apr 1, 2024 · FFmpeg stands as a pivotal tool in the realm of video editing, offering robust capabilities for tasks such as cropping and resizing videos to fit various aspect ratios. How do I do this in Apr 23, 2020 · I am trying to crop a video so that I can remove a chunk of the content from the sides of a 360-degree video file using FFmpeg. For example if I have an input image that is 1600x1000, after cropping it should be crop=W:H:X:Y 参数说明w: the width of the output videoh: the height of the output videox: the horizontal position from where to begin cropping, starting from the left (with the absolute left margin b Jul 31, 2025 · Learn how to use FFmpeg’s crop filter with practical examples, including center crop, auto-detect black borders, resizing, and automation scripts for efficient video trimming Feb 26, 2025 · Crop video w/ audio Crop video using cuda acceleration (-hwaccel cuvid) Pass the -crop flag with margins: top x bottom x left x right. mp4 -filter:v "crop=iw:ih-100" -r 0. mp4 video file with black boarders on the top, bottom, and/or sides, How can I trim these boarders off with python? I do not want to replace the boarders with anything, I just want to 1 day ago · In the example, the split filter generates two outputs that are associated to the labels [main] and [tmp]. medium. Hence, the quality loss. Moreover, they serve several purposes like optimizing for different screens, focusing on a particular object, or enhancing Aug 2, 2025 · Crop videos using FFmpeg and compare it with Shotstack, a cloud-based video editing API that simplifies video processing and delivery at scale. mp4 -filter:v "crop=in_w:in_h-40" -c:a copy out. Jun 10, 2025 · When you crop a video with FFmpeg, you're essentially trimming away parts of the video frame from specific sides, such as the top, bottom, left, or right. I would like to add a 30 pixel horizontal black bar to the top and bottom of each video without ruining the dimenions (so even if they go over the video). Cropping is used to:* choose what part of a video you want to be visible* cut out unwanted elements or l Mar 13, 2021 · Using ffmpeg (in batch file), Is it possible to add whitespace (padding) to the bottom of an image if it is less than 720px in height? If the image is 720px or more, do nothing. What's reputation Oct 28, 2015 · There is no lossless crop for H. I only found ffmpeg, but ffmpeg -croptop 90 -i original. mkv -vf Feb 6, 2025 · I'm having trouble understanding the new version of ffmpeg cropping syntax. mp4 -vf crop=720:480:0:40 -vcodec copy -acodec copy 2. Maybe it also has a filter to determine crop values automatically to remove black Dec 18, 2022 · If I have a . mkv" attachment) Meanwhile, it works fine on my other phone Apr 25, 2018 · Hi ffmpeg from git is running OK with cuda 9. Apr 29, 2022 · ⚠ This post is more than a year old, its contents might not be up to date. In this guide, we demonstrate practical techniques to crop media files directly from the Sep 18, 2024 · To crop different values from the top/bottom in a video using FFmpeg, you can use the crop filter. Mar 14, 2025 · I am trying to create a shell/ffmpeg script that can show multiple files after they have been processed using different filters in a side by side / tiled way. Mar 27, 2019 · I wanted convert 16:9 video to 9:16 and find this: "FFmpeg: How to convert horizontal video 16:9 to vertical video 9:16, with blurred background on top and bottom sides" Jun 25, 2023 · To do so, I used these two ffmpeg commands: ffmpeg -i inputfile. mp4 , which crops the video 20px from the top and 20px from the bottom. May 15, 2025 · I have many videos in a folder which I want to crop in same way. ogv "output. I need to combine 2 video that Sep 24, 2018 · I am trying to do three tasks with FFMPEG Crop a video without losing quality Resize (upscale) the cropped video with good quality Cut specific part of a the upscaled vided Apr 16, 2024 · This script queries FFMPEG for the crop rectangle to use, and then passes it right back into FFMPEG to crop the video. Jul 31, 2011 · Hi, I have a movie 640x480 and I need to cut 20px from bottom. When playing back the video, it worked in mplayer, but the resulted in Apr 27, 2022 · FFmpeg is a powerful CLI tool that can do almost anything you can imagine with multimedia files. sh #!/usr/bin/bash # cut 30 rows from the height at the bottom of the video ffmpeg -i . Feb 5, 2025 · Learn how to use FFmpeg to crop images and videos directly from the command line, enabling efficient media processing in your development workflow. Referenced by init_base_units (). avi -i B. You need to specify the width and height of the cropped area, along with the offset from the top-left corner of the original Jun 10, 2025 · If you want to use FFmpeg to quickly crop videos but are worried that you are not prepared enough, then read this post to learn the method. mp4 out1. You can't perform any filtering without losing quality when encoding to a lossy Mar 18, 2024 · To begin with, we’ll use a template command to learn about the different options used for cropping a video: In this command, ffmpeg invokes the FFmpeg tool with the -i option, used to specify the input video file. The stream sent to the second output of split, labelled as [tmp], is processed Sep 9, 2023 · Master the art of crop video using FFmpeg: Unlock precise resizing and trimming techniques for stunning results. mp4 -vf "crop=in_w:in_h-50" However I just want to crop 25 from bottom (not top). mp4 The filter will automatically center the crop if x Nov 2, 2022 · You can do this with a pair of filters, cropdetect and crop. I'm using the following command to remove 44 pixels from the top and 40 pixels from Jun 24, 2014 · I think it has a "blackness" video filter, which can determine if a picture sequence is black. mp4 -bsf:v h264_metadata=crop_left=128:crop_right=128:crop_top:0:crop_bottom=0 Jul 15, 2025 · I've got a 720p video, that contains a picture that's only 4:3, so the edges left and right stay empty/black. I wanna know how to crop a specific amout of pixel to the top, bottom, left and right of my video. /ffmpeg -hwaccel cuvid -c:v h264_cuvid -i /data/1920x800. It has a crop filter that lets you pick any frame you want and crop to that, but it also has a VERY good Sep 7, 2024 · The video is improperly cropped and there's a green line on the bottom of the video (See "mtk_wrong_crop_result. Also How can i remove the black portion in the output so that Jul 14, 2025 · I have about 100 videos. I am still learning FFmpeg, Jul 15, 2021 · I just want to crop 2 pixels (Top) to get identical black bars (now is 138 TOP and 140 BOTTOM) but without re-encoding. h. It was easily done with previous ffmpeg versions with "-cropbottom 20", but Hi everyone. Aug 23, 2019 · Hello there, I'm quite new to all this ffmpeg stuff. mp4" -frames:v 1 output. An example of desired output would be: Jan 6, 2022 · 文章浏览阅读7k次，点赞4次，收藏3次。本文详细介绍了如何使用ffmpeg工具进行视频裁剪，通过实例讲解了crop参数的格式w:h:x:y，以及默认居中裁剪的用法。掌握这个技巧， Mar 18, 2015 · Example 3 Crop 20 pixels from the top, and 20 from the bottom: ffmpeg -i in. Aug 13, 2012 · Ancient ffmpeg builds used -croptop, -cropbottom, -cropleft, -cropright options instead of the crop filter. Read on if you’re interested. Sorry if May 7, 2021 · If you are looking for ways to crop a video without losing quality in FFmpeg on Windows or Mac, this guide would be exactly what for you. 264, you are re-encoding the content. Much thanks to all - of course my difficulties all stemmed from the -vcodec To achieve the same effect, we need to crop our video (1280-712)/2 = 284px on left/right and 0px on top/bottom use this configuration crop=iw-568:ih:284:0. All the videos are 1280x720p and have Jul 1, 2022 · I have a x265 MP4 video that requires cropping to remove black bars top and bottom. mp4 Jul 21, 2015 · But the resulting file is 1920x1013 and I need to add black pixels top and bottom to fill it out to 1920x1080. It is a time-efficient and low-resource-consuming tool that can be used to crop both videos and images. Oct 11, 2022 · This tutorial shows you how to crop a video to specific width and height using the versatile and open-source FFmpeg command-line tool. mp4 Crop image of size 1920x3240 and pan from bottom to top using 1920x1080 (1080p), fixed x-coordinate = 0, for 10-second duration and stop at the top of the im Nov 30, 2011 · > I wish to crop off the bottom 40 lines of a 720x480 video and have the output 720x480 > ffmpeg -i 1. Say I wanted to take 20 pixels off the bottom, it used to be -cropbottom 20. In this post, we will Mar 7, 2022 · Standard procedure to eliminate these black areas is to run first the cropdetect filter and then run the crop filter. How to do that? The original video is 2048x2048 pixels. wav -map 1:a -c:a copy out3. Trim, crop and more - basic video editing with ffmpeg Written by Tamás Deme on Fri Apr 29 2022. Mar 4, 2020 · This uses a different set of parameters to the previous command, which I actually find easier to work with. Sep 14, 2024 · How to let FFmpeg crop videos? This article shows you how to crop video with FFmpeg and a free alternative on Windows. There's no logic in this script that alters the crop Jan 3, 2023 · I think cropping the image adjusts the aspect ratio accordingly, unless you specify a specific aspect ratio in the command, but that would cause the pixel ratio to no longer be Today, we show you how to crop a video using ffmpeg. May 15, 2023 · Cropping the bottom of a video My initial video was 2160 x 3840 but I didn’t need the bottom 1920 pixels because I’m using that part of the screen for a video of me. My command should look something like this: ffmpeg -i input1 -i input2 Aug 9, 2018 · I need to combine 2 videos vertically or horizontally. Little did we know that it is packed with powerful and useful tools, allowing you to convert, crop, cut, or edit videos. I want to remove 25px from the bottom part of all frames of all videos. The output Jan 7, 2020 · This article explains how to crop videos using FFmpeg (with examples) from the command line. mkv out2. It was easily done with previous ffmpeg versions with "-cropbottom 20", but with -vf "crop=x:y:x:y" I am puzzled. Jul 31, 2025 · Learn how to use FFmpeg’s crop filter with practical examples, including center crop, auto-detect black borders, resizing, and automation scripts for efficient video trimming Oct 5, 2022 · Crop or resize videos into any dimension and remove black borders without watermark for free using FFmpeg Dec 4, 2020 · In this tutorial, we learn how to crop a video using FFmpeg's crop filter. 1 Video encoding is OK by using following command . /output. Dec 10, 2021 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Nov 5, 2023 · Have you ever wanted to quickly edit a video to cut out unwanted sections or zoom in on an important clip? With the powerful open-source ffmpeg tool, you can cut and crop Jun 16, 2014 · Use FFmpeg to remove black stripes from videos to create clean and consistent thumbnails. Mar 25, 2023 · How to use the ffmpeg command line tool to zoom in to a video, while maintaining aspect ratio and resolution. I'd suggest: export as image sequence using ffmpeg, batch process using ImageMagick Jan 8, 2017 · Definition at line 115 of file cbs_h264. mp Hi. I think it is possible with FFmpeg but I'm not sure. I usually use VideoRedo,however Dec 14, 2022 · Cet article vous apprendra à utiliser FFmpeg pour découper/recadrer/redimensionner des vidéos. Not like those free online Crop image of size 1920x3240 and pan from top to bottom using 1920x1080 (1080p), fixed x-coordinate = 0, for 10-second duration and stop at the bottom of the Nov 30, 2011 · > filtering is disabled with -vcodec copy, we should really make ffmpeg > more verbose about this. If this is the case for you then get a modern ffmpeg. I need to crop a video from all sides (top,left,bottom and right), but there's a different # of pixels i need to crop from each side. I read tha before you just had to "-cropbottom 20" but now with all this h:w:x:y Aug 3, 2020 · I would like to keep only upper half of the image in a video. I have other issues including how to feed ffmpeg a dpx sequence and Jul 13, 2025 · ImageMagick could do the cropping if you have numerical description of the crop frame. ogv" gave me Vertical crop dimensions are outside the range of the original image. This guide provides an overview of how to effectively Nov 30, 2011 · friends, I wish to crop off the bottom 40 lines of a 720x480 video and have the output 720x480 actually i wish to simply crop off the bottom 5 or 8 lines - but used 40 so the Jul 14, 2025 · I tried to find an application that supports this. I want to cut of the left and right so that video is 4:3. Ainsi, vous pouvez facilement éditer des Feb 22, 2020 · I changed everything under // transitions to [out101][out102][out103]concat=n=3[main] not sure if that is correct. The parameter iw-568 is the cropped output width (out_w) calculated by the input Oct 10, 2020 · I have a UHD wide image (3840px) which is very tall (11568px). 40 o/output_%04d. data -vf crop=iw:ih-30:0:10 -c:a copy . https://daengood. But before this i need to crop one or two of the videos. CropDetect will output every time it finds black edges in a video. In some cases, the drawback of cropdetect is that it needs a log Jul 26, 2011 · Hi, I have a movie 640x480 and I need to cut 20px from bottom. Apr 16, 2020 · From this To this My code not working because it's crop from both side (top & bottom) ffmpeg -i input. CropDetect will find where the black bars exist Crop will remove them. com/ffmpeg-commands-and-ex ffmpeg -i input. I did not find any How can I crop a video with ffmpeg? This article shows you the detailed steps on how to use FFmpeg crop videos and the best alternative for Windows and Mac to crop or auto-crop videos in easy clicks. ueryy bqscrsg rwxh uhxrs kfuc sjskxev zcwycf lbqnpw eoyzj aokz