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Questions tagged [mp4]

Questions relating to the mp4 multimedia file format

178 questions
241
votes
4 answers

How to create an animated GIF from MP4 video via command line?

I want make an animated .gif from an .mp4 video. I would prefer to do it from the command line, so please only list command line tools.
Maythux
  • 87,123
210
votes
7 answers

How to convert .mkv file into .mp4 file losslessly?

I need to convert a video file from Matroska container into mp4 container. Matroska file contains one h.264 video track and one AC3 sound track. It should be possible to do this losslessly, but how to do it with native Ubuntu tools? Transcoding is…
Seppo Erviälä
  • 5,825
141
votes
11 answers

How can I convert audio from MP4 or FLV video files to mp3?

Is there an application that allows me to extract the audio from a MP4 or FLV video file and store it as an MP3 file for use in a portable media player?
b-ak
  • 4,420
56
votes
8 answers

How do I convert an MP4 to an MP3?

I have some songs which are in mp4 format and I want to convert them into mp3 format. I am new to Ubuntu/Linux. So please explain the step by step process or give any software which can do the above job.
srinu
  • 695
44
votes
3 answers

How to extract the audio from an mp4 video to a mp3 file?

I'd like to extract the audio from an mp4 video. Is there a software for Ubuntu, which does the job?
empedokles
  • 4,023
33
votes
11 answers

How to check how long a video (mp4) is using the shell?

I need to ftp upload all the mp4 files in a directory with length > 4 minutes using the shell. I can't find any script to check how long a video is. Does anybody have any idea how to do that? Thank you very much!
Thomas
  • 331
29
votes
6 answers

Convert mkv to mp4 with ffmpeg

When I try converting mkv to mp4 using ffmpeg, the following error occurs: version 0.8.3-4:0.8.3-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers built on Jun 12 2012 16:52:09 with gcc 4.6.3 *** THIS PROGRAM IS DEPRECATED *** …
JohnS
  • 291
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25
votes
7 answers

Good movie mp4 metadata editor?

I need to read metadata from one of my movies in mp4 format and to do that I need a very basic mp4 (for movies) metadata editor. Which programs can you recommend ? (Since I don't know any). I don't need media organizers, nor anything fancy, just…
Flame_Phoenix
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24
votes
3 answers

What tools could I use on Ubuntu 16.04 to cut mp4 files into several clips?

I am trying to cut a long video into several small pieces. Any recommended tools can do the task?
r0ng
  • 1,117
24
votes
3 answers

How to extract aac audio from an mp4 file to m4a

How can I extract the aac audio from an mp4 file? I tried with ffmpeg and -acodec copy but if i use mp4 as output it will still encode the video and I get the same file size. If I use m4a as output it will somehow still encode the video and I get…
Turtlepurple
  • 901
24
votes
3 answers

How to fast convert mp4 to webm using ffmpeg?

I have to convert 76 mp4 files to webm for the purpose of a website that uses HTML5 videos. I'm talking about 10 Gb of mp4 files... I know I can simply ask ffmpeg to do that using: ffmpeg -i input_file.mp4 output_file.webm Of course I'll do it…
pr.nizar
  • 790
17
votes
3 answers

How can I convert .264 file to .mp4

I want to convert an elementary stream(.264) to container format(.mp4). Can someone please help me on this? How can I use ffmpeg to do this task? What are all the other methods that could accomplish the same task?
user280527
  • 171
15
votes
4 answers

Batch extract audio with avconv without transcoding

I have about 70 mp4 files, and I want to extract the audio files directly without transcoding further. All the mp4 files have aac audio files. I understand I can use the following command to extract the audio file from one of the mp4 files: avconv…
oshirowanen
  • 4,047
15
votes
2 answers

What tools can I use to a text overlay to a video?

I have an MP4 that I uploaded from my Android to my Ubuntu workstation for editing. What tools can I use on Ubuntu to fade in and out professional-looking text?
Volomike
  • 2,305
11
votes
5 answers

How to convert a video from mp4/flv to mpeg/mpg

I download videos in mp4 or flv format but I need to convert them to mpeg 1/2/3 so that I can watch them on my special gadget. I think I need a program. any suggestion thanks
emre
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