WebM is an audio-video format designed to provide a royalty-free, open video compression format for use with HTML5 video. The project's development is sponsored by Google.

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Converting WEBM to MP3

I'm aware there are a couple of other questions here related to this, but the answers provided don't seem to work. I'm trying to convert a webm to mp3 with avconv. Here's how I tried to do it: $ ls ...
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45 views

How to convert webm video to mp4 when encountering errors for unsupported LBRR frames and decoding SILK/Opus

I have a low quality, but playable .webm video. It was recorded from a webrtc live stream that seems to have been on a bad connection. There are not many video frames and the audio cuts out for a ...
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1answer
76 views

Can't display the thumbnails of HEVC Main10P and VP9 codec video

I hate totem player, it is useless to me, so I installed the ffmpegthumbnailer, removed totem player, and changed the default thumbnailer to it by following steps. sudo apt-get install ffmpeg ...
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31 views

Problem in playing webm file in VLC in Ubuntu

I was trying to play .webm file in ubuntu and it gave me this error: No suitable decoder module: VLC does not support the audio or video format "undf". Unfortunately there is no way for you to fix ...
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80 views

OpenShot opens .webm file as audio

Tried to edit this file: https://upload.wikimedia.org/wikipedia/commons/a/ab/Acute_leukemia.webm in OpenShot 1.4.3, which is what the Ubuntu Software Store has and what the OpenShot site says is ...
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196 views

play webm files in mp4 format

WebM is an open, royalty-free video container format designed for use with HTML5, VLC media player, MPlayer and K-Multimedia Player have native support for playing WebM files. By the way, WebM video ...
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269 views

VLC not playing aac files and a webm file

I have a few music files in aac format which I want to play through VLC. But VLC ain't playing any of them. It's not showing any error or any other message, it simply stops as soon as I play them. I ...
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140 views

How to force Firefox to prefer WebM over MP4 when both are available in a <video> tag?

There is some problem with MP4 playback on my installation and WebM files are played perfectly. But if the first source in a <video> tag on a page is mp4 it's getting selected automatically. ...
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228 views

Software for converting and cutting videos with webm support

I am looking for a file converting program to trim and convert videos into .webm format. I am currently using Ubuntu 14.04.1 LTS.
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1answer
749 views

What application can edit WebM metadata?

I have a few hundred WebM files, which include audio and video in one file (WebM is a container format). I want to edit their metadata, like: artist who performs the song title of the song album ...
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225 views

How to cut mp4 file and link to make webm

Whats the fastest way to cut small sections of a mp4 file and link them back together as a WEBm help is greatly appreciated!
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2answers
2k views

Best avconv settings for WebM video?

What are the best settings when converting, say, a .mp4 video to WebM? I have done some searching on here but nothing specific to what I need really. What I've been using: avconv -i input.mp4 \ ...
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9k views

How to do I convert an webm (video) to a (animated) gif on the command line?

I suppose ffmpeg is the weapon of choice but I didn't find out how to reach my goal.
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1answer
2k views

How do I enable thumbnails for 'webm' files?

I have thumbnails for every other file type just not .webm. Is there any way to enable them and if so, how would I do that?
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1answer
774 views

How to play vp9 videos on ubuntu

So I have a vp9 video and I can not play the video on ubuntu 13.10 audio works because it is vorbis. I have compiled ffmpeg version git-2013-11-01-ec5e02d and I know that it supports vp9 Thank you ...
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1answer
2k views

bulk/batch convert mp4 and m4v files to webm via command line?

is it possible to convert mp4 and m4v to webm via command line? I'd like to just in a bulk swoop convert my mp4 and m4v files to web so i can play them in firefox without any issues.
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1answer
2k views

How to extract audio from Webm without transcoding?

Audio within mp4 and flv files is AAC, and a proper container for that is m4a. So, in order to extract sound from mp4 and flv I use a command like gnome-terminal -e "parallel avconv -i '{}' -map 0:1 ...
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2answers
14k views

Convert WebM to other formats

I take photos and videos using Cheese on Ubuntu 12.04. They are in WebM formats. How to convert them in other more conventional formats for making them compatible with other OS and devices (Windows, ...
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2answers
33k views

How to fast convert mp4 to webm using ffmpeg?

Sorry to disturb you but I'm in a kind of a trouble. 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 ...
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1answer
2k views

Is it possible to do a lossless conversion from m4v to webm?

I have several m4v files, which I need to convert to webm. I am using ffmpeg for doing so and have used commands such as: ffmpeg -i myfiletoconvert.m4v output.webm The conversion works fine, and ...
2
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3answers
301 views

Nautilus and file command in 11.04 don't show metadata for WebM files [closed]

The file-name extension .webm is used for media files using the WebM multimedia format, which consists of the WebM container (a subset of the Matroska container) and audio and video streams with ...
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1answer
9k views

Are there any video editors that support WebM?

Are there any video editors for Ubuntu that support WebM importing? AKA, I have a raw WebM file that needs editing.
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188 views

Why isn't WebM video supported out of the box?

Ubuntu can't include non-free codecs, but has had the ability to play Ogg Theora and Vorbis files out-of-the-box for years because they're open source. Now that WebM is such a popular, free ...
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7answers
6k views

How to make WebM desktop recordings?

I am looking for either a desktop recorder/screencast application that can output in WebM format, or a program that can convert the .ogv format generated by gtk-recordmydesktop into WebM. I have ...
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5answers
18k views

How to play a webm video file?

I have tried vlc, Banshee and Totem but none of them recognize the webm format. Even the system does not recognize its mime-type. How do I play it ?