Questions tagged [video-editing]

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3
votes
2answers
2k views

trim and fade in/out video and audio with avconv (or different tool)

I'm using avconv for trimming and converting videos. Let's say I want to drop the first 7 and last 2.5 seconds of the video stream and one audio stream of an one-hour mts file: avconv -i input.mts -...
4
votes
3answers
5k views

What video editing applications are available in Linux?

Please recommend me a video editor. I am looking for a GUI application. I haven't done any video editing recently so I do not know what the possibilities are. Using a Linux only software is fine ...
1
vote
1answer
610 views
-1
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1answer
25 views

How can I reencode a video's audio when it was recorded in stereo with a mono source?

I have a video that I recorded with an interface using an XLR microphone (mono). The video recording software (Simple Screen Recorder), and my PulseAudio all saw that as a stereo source. Now I have a ...
1
vote
2answers
32 views

Which video editor for Linux has the video speed control effect?

I have so far tried Pitivi and Shotcut, but neither of these seem to have this effect, by which one could speed up or slow down certain segments of a video. Also, Shotcut doesn't even work very well ...
8
votes
7answers
24k views

FFMPEG - Interpolate frames or add motion blur

I just watched the trailer for the hobbit, and a trailer for the avengers which both feature an increased framerate. A lot of the comments state that this isn't "true" 60fps since it was not shot at ...
0
votes
0answers
31 views

removing audio and chapters from multiple dual audio video at once

I have so many mkv files and all off them have dual audio and chapters with it. So I want only the audio that is in my language along with the video and remove the chapter files. there are so many ...
0
votes
0answers
10 views

Face auto tracking and pixelizing/black/censor

How to under Linux track faces on video (preferably live too, but recording is enough) and automatically pixelize/cover with black/censor faces from video (using auto tracking feature)? In past there ...
114
votes
9answers
158k views

How can I use ffmpeg to split MPEG video into 10 minute chunks?

There is often a need in the open source or active developer community to publish large video segments online. (Meet-up videos, campouts, tech talks...) Being that I am a developer and not a ...
0
votes
1answer
34 views

How to use HiDPI mode / scaling in Shotcut?

How to increase UI size, density, font size, and UI scaling to HiDPI mode in Shotcut (using QT) open source editing program?
0
votes
1answer
246 views

ffmpeg video rotation problem

I have a video clip recorded by a smartphone vertically, and I'm trying to rotate it 90 degrees clockwise using the usual ffmpeg command (because some players fail to read the EXIF rotation data and ...
132
votes
11answers
134k views

How to remove an audio track from an mp4 video file?

I have an mp4 video file with multiple audio tracks. I would like to strip away the rest of the tracks and keep just one. How do I do this?
0
votes
0answers
336 views

No audio in olive editor

I am editing files in Olive video editor with an .mkv file but when I play the clips the audio doesn't work and when I export the file I see a black screen for much more time than the original file. ...
0
votes
1answer
429 views

Cut dvbsub from MPEG-TS with ffmpeg

I have a bunch of MPEG-TS files, originally created by a hardware TV-recorder. ffprobe lists their content like so: Input #0, mpegts, from 'recording.ts': Duration: 02:14:57.67, start: 87544.254878,...
0
votes
0answers
12 views

How to automatically export a Kdenlive project with the size of the imported video to prevent black borders?

When exporting a project to a video with Kdenlive (v18.12 in Debian) I always have to go to Project->Project Settings->Manage project profiles->enter the size of the imported video/s or image/s to ...
0
votes
1answer
1k views

How to fix kdenlive crashes on Ubuntu 13.10 during scene finding

I am new to the video editing software kdenlive and tried to use it to edit a large avi`` file. I added theaviclip and started a job to find the scenes in this avi. Halfway through the clip (after 30 ...
1
vote
1answer
1k views

Kdenlive complaining about a module missing that is already installed

I'm importing my mini-dv tapes to my computer system, and I installed Kdenlive, and wanted to try it for the task. But it's complaining about a missing module that is already installed. Is this ...
0
votes
0answers
25 views

Combine 2 videos into 1 seamless video

I have 2 videos - a first chunk and a second chunk - from the same project (I had export problems.) These two chunks have some overlap. But I need to combine these two chunks so that when the first ...
3
votes
3answers
145 views

Looking for the professional video editing tool

No this is not a poll. I guess you have to admit that gimp is the picture editing tool for linux. Well i am lookin for the video editing tool for linux. Is there one?
6
votes
3answers
8k views

How to splice sections of a video with avconv?

I have figured out so far that you can cut a section from a video with avconv with a command like this (cuts from 1:00-3:00): avconv -ss 00:01:00 -i "input.avi" -t 00:02:00 -c:v libx264 -crf 23 "...
3
votes
1answer
53 views

ffmpeg: extract audio only from a media file using the best presets (2.0)

I was reading Cut part from video file from start position to end position with FFmpeg a few days back and I tried the following and it worked. While the video part was good, I am not sure if the ...
0
votes
1answer
2k views

Convert files from .iso using Linux

I have a number of .iso video files 4.7GB is size. I'd like to convert them to perhaps .avi or .mpg4 format to reduce the size and for playing on equipment that likes files not DVDs. Running Linux ...
-2
votes
1answer
953 views

Using ffmpeg to Compressed a Two Frame Video

I'm trying to use Ubuntu Linux 19.04 to convert an OpenShot video into a more efficient file-size. The video only contains two still images, and 20 minutes of audio, but for each file-type I save-as, ...
9
votes
1answer
11k views

How can I stream my desktop/screen to /dev/video1 as a (fake) “webcam” on Linux?

I have two commands, one that lets me record my screen to an AVI video file, and another which lets me stream a video file as a (fake) "webcam". This is really useful in apps that doesn't support ...
0
votes
1answer
20 views

Random lines during screen recording playback

Every time I record or screencast my desktop, once I play it back I get random lines appearing now and then, no matter what media player I use. They're either black or they show fragments of my ...
-2
votes
1answer
440 views

What does (($count+1)) do in this script?

Can anyone tell me what the purpose/action is of this area right here circled in neon green color? I would like to know its purpose in terms of what it does in a script. while IꓝS= read -r line; do ...
1
vote
0answers
77 views

How to modify blended video durations with a -filter_complex command argument in ffmpeg

Building off the solution provided in this thread, I'd like to know how to make simple modifications to a complex command argument which uses ffmpeg to interweave two videos by dissolving them into ...
4
votes
1answer
2k views

How to stream a local video to webcam using ffmpeg?

I have a local video and I want to stream it to a dummy webcam video device from v4l2loopback. I created the dummy device at /dev/video1. How to use ffmpeg to steam that local video trial_video.mp4 to ...
1
vote
0answers
70 views

Partially replace video stream while preserving audio stream

Consider a video file with one video and one audio stream. I want to replace the video stream partially while preserving the original audio stream. With partially I mean to replace certain seconds ...
1
vote
0answers
318 views

trim video files via audio track information

Is there a way to pass a folder of .mp4 files and trim them by audio track? Say the first 20 seconds has no loud audio and the last 20 seconds has no loud audio, is there a way to remove the first and ...
8
votes
4answers
2k views

Video editor w/ stabilization?

As I slowly migrate from Apple's Mac OS X to a Linux distribution, I try to find good replacements for Apple's iLife software suite. I particularly like the current iMovie's image stabilization ...
18
votes
4answers
12k views

Is it possible to merge video files using `cat`?

I wonder if it's possible to merge video files using the cat command? I mean will the resultant file play seamlessly?
1
vote
1answer
1k views

ffmpeg output.mp4 with size 0

I have a video upload script in php where I exec the following command: exec("/usr/bin/ffmpeg -i ".$folder."/".$filenameIn.".mp4 ".$folder."/".$filenameOut.".flv 2>&1", $output); And the ...
2
votes
0answers
90 views

adobe premiere elements 12

My MS Win8.1 got corrupted on a Dell M4500. I would love to just run linux on the new SSD I installed and not pay MS another dime for Win10 pro. But I need Adobe Premiere Elements (linux editors don'...
2
votes
2answers
2k views

How to grab the audio channel from an MP4 video file into a separate audio file?

Having an MPEG4 (MP4 container, H264 AVC video, AAC audio) video clip downloaded from YouTube, how to separate its audio channel into an independent audio (without de&re-compressing the audio ...
3
votes
1answer
945 views

Hardware accelerated h.264 transcoding on i.MX6

Preface: I have a lot of .mts video recordings (mainly 576 to 720 lines) I need to cut and transcode to lower bitrate h.264. Nowadays I do this on with an all-in-one tool on my 2009 Core2Duo MacBook, ...
1
vote
1answer
452 views

Incorrect scene change detection with avconv

According to this article I used successfully the command $ ffmpeg -vf "select='eq(pict_type,I)'" -i somevideo.mp4 -vsync 0 -f image2 /tmp/thumbnails-%02d.jpg I tried the second command: $ ffmpeg -...
2
votes
1answer
1k views

How to rotate video?

I have many videos taken from Nokia N73 that are getting played on my laptop (after transferring from phone to laptop) horizontally. How to make them play vertically. I have read this link. but the ...
0
votes
0answers
132 views

How to trim an audio/video file from start and end in Ubuntu 16.04?

I've an audio and a video file, both of 3 hrs duration. I want to remove 1st 5 minutes from the beginning and last 10 minutes from the end. How to achieve this?
1
vote
1answer
606 views

FFMPEG glue MPEG TS

I have movie split in many parts with duration 10-30 seconds. All movies are MPEG TS files. I want to merge them. I try to make following: ffmpeg -f concat -i join.txt OUTPUT.TS and ffmpeg -i "...
7
votes
1answer
25k views

FFmpeg - Split video multiple parts

I read the following thread, and the solution works if I want to split a video into pieces every two minutes: Split video file into pieces with ffmpeg The problem is that I want to split a video into ...
6
votes
1answer
4k views

How can I remove the audio track of a media that I import into a Pitivi project?

Rather than changing the volume of the layer to zero, is there a way to delete the audio track from the layer altogether? The version of Pitivi I'm using is 0.95.
1
vote
1answer
146 views

Editor for altering the soundtrack to a movie

I have a movie that i'd like to "cuff", ie reverse a few swear words which crop up in it, to make it a bit more family friendly. Can anyone recommend a good free video editor tool for this? I don't ...
6
votes
1answer
863 views

correctly splitting an avi file

I'm trying to split an avi file as follows. avconv -i file.avi -vcodec copy -acodec copy -ss 0 -t 10 out.avi and this works (It creates a chunk with first 10 seconds of the video). The problem is ...
0
votes
1answer
210 views

Building Kino fails at a module, complaining that it's missing, but it's already installed? [duplicate]

My system is Fedora 20 KDE x86_64, and here is the "in question" missing module: [root@hostname kino-1.3.4]# yum list libdv Loaded plugins: fastestmirror, langpacks, refresh-packagekit Loading mirror ...
1
vote
1answer
893 views

Installing Kino fails with missing file linux/videodev.h

I'm running into a brick wall here, I'm getting an error on the command: make in installing Kino(Video Editing Software(Dead Project)). Here is the error: make[3]: Leaving directory `/opt/kino-1.3....
3
votes
1answer
5k views

How to split and join without transcoding AVC/MPEG-TS video files?

I have two recorded video files with the extension .mts. I need to remove some part of the first, split the second, and then merge the first file with the first (split) part of the second file. They ...
5
votes
1answer
3k views

Anyone gotten the switch '-segment_times' working with ffmpeg?

While searching through U&L I noticed a fair amount of questions asking how to script the generation of ffmpeg command lines like these: ffmpeg -i video.mp4 -ss 00:00:00 -t 00:10:00 -c copy 01....
11
votes
3answers
8k views

How to 'burn' a subtitle track onto an mp4 video file

I would like to make a subtitle file to be a part of an mp4 video file, so that I don't have to deal with two separate files. I imagine two ways: Make the subtitle an intrinsic part of the video. ...
2
votes
2answers
2k views

Cutting an AV file (MP4)

I have tried using openshot, pitivi, kdenlive, videolan to cut an audio/video file but they all seem to freeze. So I am now trying to use the following command: avconv -i input.MP4 -vcodec copy -...