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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Updating mime database causes strange errors

First I was having some errors to play .webm videos with the following message: "no video with supported format and MIME type found" Then I found somewhere a guy that solved this problem using sudo ...
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1answer
981 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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65 views

Can't convert from DVD to webm

On Ubuntu trusty, I can't convert and DVD to the webm format. I'm using the command: mencoder -v -v dvd://1 -ovc lavc -oac lavc -ffourcc VP80 -o output.webm -of lavf -lavfopts format=webm -lavcopts ...
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1answer
673 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
455 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
991 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
1k views

How to extract audio from Webm?

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
3k 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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231 views

Unable to record videos in webm format with any screen recording software on Ubuntu 12.04 LTS

Im unable to record videos in webm format with any screen recording software on Ubuntu 12.04 LTS. I have tried using Kazam, Tibesti, Eidete etc. All of them failed to record webm videos. Do you have ...
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2answers
19k 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
953 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 ...
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2answers
2k views

ImageMagick convert can't convert to webp

On Ubuntu 12.04 ImageMagick doesn't seem to support webp. convert flyer.png flyer.webp creates an png file with webp extension. On https://developers.google.com/speed/webp/docs/using is stated that ...
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3answers
245 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
5k 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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1answer
156 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
4k 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
12k 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 ?