Ask Ubuntu
Ask Ubuntu

Questions tagged [video-conversion]

transcode video data between different container and codecs

Under Ubuntu there are many quality tools to enable quality transcoding between different containers and different codecs. In no particular order there is:

Gui Transcoding Tools

  • vlc
  • WinFF
  • Handbrake
  • Avidemux
  • Arista

Command-line Tools

  • avconv
  • FFmpeg
  • Mencoder
134 questions
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
69
votes
3 answers

Need to downsample video to a lower resolution

I would like to convert a Mp4 file in HD into a Mp4 file of lower resolution. Is there any software that can be used for this?
theja
  • 947
34
votes
2 answers

Fastest way to convert videos (batch or single)?

I know there are a lot of questions about video encoders around here, but my question is more about workflow/efficiency. For my day job, I need to convert videos, frequently, from many random formats (usually large AVI, M4V, and what not) and…
Garrett
  • 393
34
votes
9 answers

What's video converters are available for Ubuntu?

I need a good video converter application that can convert from/to many video formats. On Windows I found Format Factory to be good. I would like its equivalent or something better on Ubuntu.
Vijay
  • 1,745
28
votes
3 answers

What are some audio/video converters for Linux?

What are some audio/video converters for Linux?
user137757
  • 281
23
votes
3 answers

Converting .mov files to .mp4 using FFmpeg

The conversion answers that I have seen on the web suggest using a -c option in the command line using FFmpeg. However using Ubuntu 14.04 the -c option does not exist in FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1. Is there a newer version? If so…
Roadrawts
  • 231
19
votes
6 answers

WinFF (FFMPEG): Unknown encoder 'libvo_aacenc'

When I try to convert a video - specifically, a Video Object (".vob") file - to MPEG-4, WinFF which I assume is a frontend for ffmpeg and avconv, but it tells me: `Unknown encoder 'libvo_aacenc'` The full text from Terminal is: avconv version…
Gregory Opera
  • 2,729
17
votes
5 answers

How to change the framerate of a video without reencoding

I'm trying to change the framerate of an MP4 video (it's a 120fps GoPro video, I want to play it back at 30fps for a slow-motion effect). I'm using avconv for this: avconv -i SourceMovie.mp4 -vf setpts=4.0*PTS -r 30 DestMovie.mp4 That technically…
EboMike
  • 478
17
votes
3 answers

How to generate a MOV-file from PNG images?

I have 400 PNG images, from which I want to generate a Quicktime movie (.mov). The filenames have the style: img1.png img2.png ... img10.png imp11.png ... img100.png img101.png ... I used to do that on a Mac using ImageJ but unfortunately this…
Sven
  • 365
15
votes
1 answer

Convert a video to a fixed screen size by cropping and resizing

I've tried to figure this out myself, but the myriad of options just baffles me. I want to use ideally either ffmpeg or mencoder (or something else, but those two I know I have working) to convert any incoming video to a fixed screen size. If the…
Andy Jeffries
  • 251
13
votes
1 answer

Converting png files to a movie?

I've been trying to make a movie using a bunch of png files, however without any success. The following command convert -delay 100 -loop 0 *.png animation.mpeg yields convert.im6: delegate failed `"ffmpeg" -v -1 -mbd rd -trellis 2 -cmp 2 -subcmp 2…
Hunter
  • 482
11
votes
2 answers

Converting images into video

I found a method on internet to use avconv to make a video from images, but the quality is very poor. I set the resolution but it didn't help. avconv -i "franc%04d.jpg" -r 30 -s:v 1280x720 a.mkv How can I choose the image compression and set the…
L.V.A
  • 1,174
10
votes
3 answers

Are there any apps to resize videos in Ubuntu?

I have a 20-min video that my friend has recently recorded, but the whole thing occupies 1 G. Is there a way to reduce it to something that can be emailed to people without completely using the quality?
Elysium
  • 11,142
9
votes
1 answer

Set bit depth in FFmpeg encoding for HEVC?

FFmpeg is now supporting 10-bit and 12-bit encoding for x265, But I couldn't find the proper command line options for encode them in those bit depths. Can someone specify that options?
Danial Behzadi
  • 1,155
9
votes
3 answers

How can I convert an MP4 to AMV?

AMV video format is a proprietary video file format, produced for MP4 players, as well as S1 MP3 players with video playback. How can I convert MP4 videos to AMV? I want to do this to make it work on Bertronic MP3-Player. What I tried $ ffmpeg -i…
Martin Thoma
  • 20,535
1
2 3
…
8 9