Super User
Super User

Questions tagged [matroska]

Matroska Multimedia Container is an open standard free container format, that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing multimedia content.

Matroska is derived from Matryoshka (Russian: матрёшка [mɐˈtrʲoʂkə]), which refers to the hollow, wooden Matryoshka doll, that opens to expose another doll that in turn opens to expose another doll, and so on. The logo uses Matroška, with the caron over the "s".

The Matroska project is a royalty-free open standard which is free to use and the technical specifications are available for private and commercial use. The Matroska development team licenses its libraries under the LGPL, with parsing and playback libraries available under BSD licenses.

File name extensions: .mkv .mk3d .mka .mks

Mime type video/x-matroska audio/x-matroska

288 questions
71
votes
2 answers

What does Matroska have which WebM doesn't, that made the differentiation necessary?

I've read that WebM is essentially a subset of the Matroska format. What does Matroska support that WebM doesn't, which necessitated "christening" a new format rather than just saying "WebM = Matroska with a restricted set of codecs used"? I'm…
einpoklum
  • 10,666
59
votes
2 answers

Handbrake settings to convert MKV to MP4 while retaining the original quality

I have a ton of MKV files I need to convert to MP4 and my chosen software is Handbrake. I'm stuck on which settings would be best for the conversion. I want to retain full quality. Do I just convert with the original settings and not change anything…
orange
  • 920
52
votes
2 answers

How to extract subtitles from MP4 and MKV movies

I'm trying to extract subtitles from MP4 and MKV movies. I'm using mp4box (on OS X) but cannot figure out how it works. Any hints?
Open the way
  • 9,221
45
votes
3 answers

How to add and remove subtitles in an MKV file?

I have a good quality MKV file that has several subtitle options. I want to add an additional subtitle file to the list. I'm using OSX. Some search online led me to use video converters, and basically re-encode the movie into a new file. That seems…
nute
  • 1,667
39
votes
4 answers

How can I watch a side-by-side 3D video in 2D?

I have a 3D movie (.MKV), with side-by-side 3D, and it works just fine at home. Now I want to see it at my friend's house, and they don't have a 3D system. Is there any way to crop one of the sides on VLC or convert it to 2D? My friend uses a Mac,…
Joaolvcm
  • 1,310
35
votes
1 answer

Remove embedded subtitles from an .mkv file?

Is there a way I can remove subtitle data from an .mkv?
Phillip B Oldham
  • 1,270
30
votes
5 answers

How to convert an MKV to AVI with minimal loss

To convert an MKV to AVI, I do two things. The first thing I do is this: ffmpeg -i filename.mkv -vcodec copy -acodec copy output.avi or this: ffmpeg -i filename.mkv -sameq -acodec copy output.avi Either of these will convert the MKV to an AVI, but…
tony_sid
  • 14,957
28
votes
2 answers

How do I change the default audio track of an MKV file?

I have an MKV video file that has two audio tracks, a Hindi-language track and an English-language track. I guess the Hindi track is set as the default track. I have a video player that doesn't allow you to select different audio tracks, so it…
Keshav Srinivasan
  • 475
23
votes
5 answers

Windows 8 DLNA streaming of MKV files

I have a Samsung TV that is capable of playing MKV files. The Windows DLNA Play To menu that appears when you right-click a media file does not support MKV files, but a simple trick has been to change the file extension from .mkv to .avi so the Play…
dbb
  • 340
23
votes
1 answer

Add another subtitles to matroska file, on Linux

I have Matroska file with some subtitles already built in. How can I add another subtitles, with proper language setting and encoding? Tried: mkvmerge -o output.mkv -S source.mkv new-subtitles.srt but it looks like it removed all other subtitles.…
user7385
22
votes
1 answer

Using ffmpeg to cut up mkv video

I'm completely lost with ffmpeg I got an mkv of 4:33 duration and I'd like to cut out the end from 4:20 I tried different ways: 1) Does not cut at all ~ > ffmpeg -t 00:04:20 -acodec copy -vcodec copy -i output3.mkv output3-cut.mkv FFmpeg version…
zuba
  • 335
19
votes
0 answers

Extracting Opus from WebM losslessly with FFmpeg or MKVToolNix

I have come across a strange problem when remuxing Opus audio stream from WebM to another container like ogg or opus. Running the output files through a spectrum analyzer clearly shows that there is loss/change in the data. I'm not sure if the…
alexitx
  • 359
15
votes
3 answers

How do I swap the first and second audio streams in an MKV in a Linux based system?

I'm using plex. Plex seems to ignore the default audio stream (on Roku) and instead just use the first audio stream. This is per my testing using mkvpropedit. Since Plex does not currently support the changing of audio sources on clients outside…
user191723
  • 153
15
votes
5 answers

Convert MKV with DTS sound to MP4 video with AAC or AC3 audio

I've got a 4.3 GB 720p movie and want to convert this MKV with DTS sound to MP4 video with AAC or AC3 audio. I sometimes get: ffmpeg: unrecognized option '-c:v' …and: aac unrecognized ¬and other similar stuff. I want this movie to have small size…
dale
  • 259
14
votes
1 answer

How to rip a DVD with multiple titles into a single MKV

I have a digital backup of a concert DVD consisting of several VOB files and on that DVD each title corresponds to an individual song. When i tried to convert it to an MKV with Handbrake i could only see the option of converting each title into a…
ruslaniv
  • 932
1
2 3
…
19 20