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.

learn more… | top users | synonyms (1)

0
votes
0answers
9 views

Audio quality issues with mkv playback under el capitan

I'm having issues with the audio quality when playing mkv files with vlc. When I play movies from iTunes I have no problems at all. The sound is somewhat distorted never noticed this behavior with ...
2
votes
2answers
29 views

Batch merge/mux .srt with .mkv files

I have a folder with: TVShow - Episode 01.mkv TVShow - Episode 01.srt TVShow - Episode 02.mkv TVShow - Episode 02.srt TVShow - Episode 03.mkv TVShow - Episode 03.srt and so on... I already know ...
0
votes
1answer
39 views

QuickTime can't play mp4 generated by ffmpeg without converting first

I've created a .mkv file from a DVD using MakeMKV that I've then converted to .mp4 using ffmpeg: ffmpeg -i title00.mkv -c copy -c:s copy output.mp4 Now when I try opening the .mp4 file using ...
0
votes
0answers
29 views

VLC Causes Buzzing Sound When Video Is Muted

I have an MKV file that does a strange thing under VLC. If I try to mute the video or reduce the volume to 0%, a growing buzzing sound plays instead of its initial function: muting the video. The only ...
1
vote
1answer
32 views

Using ffmpeg to cut a portion of a mkv

So I'm trying to extract a portion of a video but for some reason the output file has a higher bitrate than the original! The original has a 9 mbps bitrate and the resulting file has like 21.9 mbps! ...
0
votes
0answers
57 views

H.265 and Opus in Mp4 container - is it possible?

I have an MKV file with HEVC video and OPUS audio. It plays great in all players. The problem is that I need it to be streamable. When VLC plays an MKV from the web, it first downloads it and then ...
-1
votes
3answers
367 views

FFMPEG: convert MP4 to same MP4 (in a different container) and add Subtitles

The main reason for this post is that I have movie.mp4 that I have downloaded an SRT for. When I manually add the SRT VLC uses its settings to change the font/size etc of the SRT. But if I Embed the ...
0
votes
2answers
45 views

Reading specific MKV metadata from avconv

I want to extract a specific piece of metadata from an MKV and use it as the filename of a converted file. Example, if I run avconv -i MyFile.mkv I get the following output avconv version ...
0
votes
1answer
1k views

How can I watch Half-OU or Half-SBS 3D movies on PC/laptop with SMPlayer?

How can I watch Half-OU or Half-SBS 3D movies on PC/laptop with SMPlayer?
0
votes
0answers
32 views

mkv files get stuck after some frames

I had few mkvs and they were working fine but then all of a sudden they started to pose a problem. Every time I play them, the audio works fine but the video keeps stuck after few frames. The files ...
0
votes
1answer
163 views

Handbrake doesn't keep Hi10p and HEVC after conversion

Handbrake is a great tool for me to convert media files. I noticed that my original video file (mkv, 1080p, Hi10p, HEVC) lose some quality after conversion (mp4, 1080p, 8-bit, AVC). What I've ...
0
votes
0answers
62 views

How to include .ass subtitles in an .mkv container in bulk?

I have a folder with many many .mkv and for each of these I have a .ass file of the same name in the same folder. Is there a way to include all .ass files in their proper .mkv file without using ...
0
votes
0answers
155 views

Subtitles in VLC not displayed correctly

Not quite sure what's going on in here, but VLC won't display the english subs in an mkv file correctly: Yet, opening the same file on Media Player Classic shows the subtitles correctly: I've ...
0
votes
0answers
139 views

FLV .h264 video timestamp from mkv

I write my own converter from MKV (h264 video, linear 16 bit little endian PCM audio) -> FLV (with samke codecs for audio and video). I have some trouble with video timestamp. From MKV format ...
0
votes
1answer
40 views

What all factors affect the ability of a video player to play a particular file?

I am trying to determine what all factors decide whether a file can be played by a particular video player, such as software or dvd player or TV with usb function or any media player. Are there other ...
0
votes
0answers
7 views

Swap tracks of a Matroska file by just editing the metadata

I have a bunch of Matroska files, each of which has two audio tracks and two subtitle tracks. I want to swap these tracks: Make the first (resp. second) audio track become the second (resp. first) ...
0
votes
1answer
557 views

.MKV to .MP4 with 2 soundtrack (audio)

I found this thread: Handbrake settings to convert MKV to MP4 while retaining the original quality And I can "convert" .MKV to .MP4 with the following code: for %%a in ("*.mkv") do ...
0
votes
1answer
175 views

MKV to MP4 with hardcoded subs (how can I delay subtitles?)

I read on another question here on superuser that for converting from MKV to MP4 and hardcoding subs i have to use mkvextract and avidemux, i tried to do it, and basically it worked but... the ...
0
votes
0answers
64 views

How to insert external video segments into an mkv file that uses them already

I have some mkv files with subtitles. They use other mkv files in the same folder at certain points in the video. I also have other files with the exact same video track but different audio and ...
0
votes
0answers
78 views

Join two matroska videos without re-encoding

I have two videos in mkv format, one 50mb (2 minute) and the other 1.4 Gb(2hr 23 min). I'd like to just join the two without going through a 30 hr long encoding process. Is there a way? PS: I tried ...
0
votes
2answers
866 views

Change framerate on MKV container

I got a problem with playback of some MKV containers (89 items, totalling 196,3 GB). The audio+video are encoded in 25 fps, but the subs are totally out of sync - these are encoded on 23.976 fps. My ...
0
votes
1answer
1k views

ffmpeg trying to hardcode subs using -c:s mov_text but fails

Please bear with me; I'm still learning the intricacies of ffmpeg and have hit a problem with subtitles. So, I am trying to change the container of a video from mkv to mp4, and simultaneously ...
1
vote
1answer
1k views

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 ...
0
votes
1answer
673 views

Mkv files random stops playing on my blu-ray player, Why?

I am a holder of LG BD390 Blu-ray player...it has always worked well but lately is giving me problems with reading mkv files from external hard drive. Let me explain... Lately I've noticed that ...
0
votes
1answer
296 views

Ignore unsupported stream when converting an avi file to an mkv file using ffmpeg

The question Remux to MKV but add all streams using FFmpeg explain how to mux all streams to an MKV file. However this fails when on of the stream was not supported by FFMPEG. For instance using the ...
1
vote
1answer
306 views

MKV Sub and Chapter removal

I am trying to remove subtitles and chapters from all my mkv files. I've been trying to find a way to add the below batch file to also look for chapters and remove them but haven't been able to figure ...
0
votes
0answers
278 views

Is there a quick and easy way to inspect DVD subtitles?

I'm looking for an easy and if possible quick way to inspect DVD subtitles, to determine their properties. I am ripping some of my movies in .mkv format, using Handbrake for linux, and I'm having an ...
0
votes
1answer
4k views

Increasing size of subtitle that’s “softly” embedded within mkv

I have some MKV files that have Advanced SubStation Alpha (ASS) subtitles in them. The subtitles are “toggleable”, so they probably aren’t “burned in” then. My goal is to—somehow—increase the font ...
0
votes
1answer
965 views

Improve ffmpeg command for MKV to MP4 for iPad?

I have many MKVs made from DVDs and BRs by MakeMKV that I converting to MP4 so I can play/stream on my iPad Air. I now use this command for converting my MKVs to MP4: ffmpeg -i input.mkv -strict ...
5
votes
1answer
19k views

ffmpeg: Converting MKV to MP4 lossless

I'm new to ffmpeg (windows), and need some help. I want to convert my MKVs to MP4 with as little loss in quality as possible. The MKVs are made with makemkv, and contains among others DTS soundtrack. ...
4
votes
1answer
1k views

Using ffmpeg to split mkv but get a few seconds video lost (cutting between keyframes without re-encoding?)

I am using ffmpeg (the real one from FFmpeg, not the fake one from Libav) to split some mkv files: ffmpeg -i input.mkv -ss 00:01:00 -to 00:02:00 -codec copy output.mkv However, when I open the ...
0
votes
1answer
218 views

Replace video track in MKV with track from different MKV file

I have two MKV files with the same movie and I want to replace video track in the first file with video track from the second file, using commandline (so it can be used again with different pair of ...
0
votes
1answer
543 views

How can I merge ordered chapters in MKVs?

I've got a lot of videos with the opening and endings cut out from each episode. They use ordered chapters and quite a few players do not play nice with these. I would like to merge them into a file. ...
0
votes
1answer
2k views

Pixelated MKV x264 playback

I have ~100 movies in x264 mkv with file sizes between 8-15GB. All of them display the grayish pixelation. They'll be ok for 5-15 minutes and then as scenes change they'll receive the pixelation. ...
0
votes
1answer
1k views

ffmpeg copy attached fonts to be used by .ass subtitles

I have a .ass file that I want to mux into a video that requires additional fonts. There seems to be no option to copy the attachments from one file to another, so I dumped them all using ffmpeg ...
1
vote
1answer
767 views

subtitle encoding issue with mkvtoolnix

so I've attached a few subtitles to a MKV with mkvtoolnix, but it appears that after muxing the character encoding is messed up. The input subtitles were UTF-8 encoded. I don't know what's the ...
0
votes
1answer
1k views

What is the fastest and best way to convert an rmvb video to mp4/mkv without losing any quality?

The file will be played in a Popbox3D. My old method was to convert the video using vidcoder (an offshoot of handbrake) using normal settings, but I've recently confirmed that this significantly ...
1
vote
0answers
706 views

.srt subtitle files not loading for .mkv video files

When I try play a .mkv video file in any player like VLC Player, GOM player or KMPlayer (not even on drag and drop), subtitles with .srt extension are not working for these video files in my Windows 7 ...
0
votes
1answer
1k views

How do I make MPC show forced subtitles?

There is Home Cinema video player, installed directly from its site. And it can show any other subtitles in a MKV video file, but it not showing the forced ones. I can select them, but there is just ...
0
votes
0answers
625 views

Why can't I stream mkv from my Debian server running ffserver?

I've got a Debian Linux server with a bunch of mkv files that I would like to play from anywhere without directly downloading the files. In other words, I would like to stream them. I've tried using ...
1
vote
1answer
2k views

How do I split a WebM file without re-encoding?

I have this WebM file that I need to split, but I'd like to do it without re-encoding. Putting it in an MKV container doesn't work, because the point where I need to split it is not a keyframe, so it ...
0
votes
1answer
464 views

Is it possible to import MKV file with chapters in PowerDirector?

I'm trying to figure out how to import an MKV file in Cyberlink PowerDirector is that possible? is it possible to work out with the chapters like deleting some of them, or changing start/end time? If ...
1
vote
2answers
483 views

Appending MP4s loses sound from second file

When I try to join two MP4s together using ffmpeg, the first file plays fine and has sound, but the second one loses all sound and becomes a lot choppier. I encoded both the files from MKVs using ...
3
votes
2answers
352 views

Video playback shows fault lines where it looks like parts of two frames are being spliced together (edit: called “tearing”)

I'm using Gentoo Linux with 3.8.13 x86 kernel at home and 3.10.4 x86_64 kernel at work. When I'm watching 720p or 1080p HD .mkv containing a H264 MPEG-4 video in full screen mode (VLC, mplayer) I'm ...
1
vote
0answers
803 views

Adding multiple chapter names in mkv files with ffmpeg

when I'm multiplexing video, audio and subtitle files into one mkv file I'm using ffmetadata files like this to add chapters: ;FFMETADATA1 title=Hello world [CHAPTER] TIMEBASE=1/25 START=0 END=2821 ...
0
votes
1answer
532 views

Which multimedia container format is the most suited for storing/streaming uncompressed audio + video?

I want to pipe uncompressed audio+video from one process to another. It means it should be packed into some container. Which one is the best suited for the task? I tried ffmpeg -i ... -vcodec ...
1
vote
1answer
894 views

How to remux 3D MKV (MVC) to AVCHD 3D?

3D MKV MVC is nice but not widely supported. AVCHD 3D is supported on latest line of TV/BD player. Is there a way to remux H264 MVC in MKV to AVCHD 3D MTS?
16
votes
2answers
33k views

How to Add/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. Some search online led me to use video converters, and basically re-encode the ...
0
votes
1answer
2k views

ffmpeg .mkv to .mkv with audio .aac compression

I am trying to use ffmpeg on a .mkv video to change soundtrack quality. I would like to lower the bitrate of the audio part (to 16 kbps) without any modification of the video. Nevertheless when I use ...
0
votes
1answer
373 views

How to reduce audio duration for AC3?

I have an MKV (an Italian version). I have extracted the H264 and the unwanted (Italian) AC3 audio. Now, I'd like to remux it with an English audio track (I have). The problem is, the English track ...