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Questions tagged [webm]

WebM is an open video encoding standard by Google. It consists of video streams compressed with the VP8 or VP9 video codec, audio streams compressed with the Vorbis or Opus audio codecs, and WebVTT text tracks. It may contain alpha planes for transparency.

For the purposes of the video tag introduced by HTML5, there was a need for an open (royalty-free) video codec which could be incorporated into free open source projects. WebM is Google's answer to this challange. An other possibility is Theora (also royalty-free).

Other vendors are voting for H.264 (mostly Apple and Microsoft), for which they already bought the licenses to incorporate into their web browsers.

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Display WebM thumbnail image in HTML5

I'd like to display a thumbnail of a WebM file without generating image with ffmpeg. HTML5 Video Player can download and run WebM files WebM files are video files indexed and ordered Some webserver handle chunks to return part of a file Is there a…
Jean-Philippe Encausse
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download webm file from client with nodejs

I have created a webm file in the client with whammy.js and the media html tag. I have the url for the webm file created on the client. It looks like this: blob:http%3A//localhost%3A3000/543e2866-f145-4ea8-96f8-c66eb78cbda2 I want to download the…
asafg
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webM files shows green and purple effects on mobile

I have converted several GIFs to webM files using ffmpeg on my Ubuntu 14.04 server. Heres the code I used for conversation. ffmpeg -i your_gif.gif -c:v libvpx -crf 12 -b:v 500K output.webm source https://gist.github.com/ndarville/10010916 The…
Naveen Gamage
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.webm video autoplay in iphone and tablets

I have created this webpage with this video using iframe. http://mediafactory.gr/webm/ If someone clicks the link, he will see the video immediately with no placeholder. How can I do this for iphones and tablets also? Right now if you open the link…
Lambros
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ffserver leave original stream size

Hope you guys will help me, because I have got stuck and can't find solution for this problem by myself. I am trying to stream video from webcam to users using ffmpeg+ffserver. But I have faced with a problem: ffmpeg gets stream from camera and…
ihnatkuk
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Good practices for 100% compatible

I'm creating a website for a musician who's website will be checked around the globe, so the compatibility of the reproduction of the audio element is essential. Therefore I thought about the following to cover all possible browsers:
Daniel Ramirez-Escudero
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Is WAV needed for html5 audio fully cross-browser?

An audio for the web which is fully cross-browser needs some different formats to work on all browsers. Commonly I see that people use mp4 and ogg. But I want to be completely sure. Therefore I added webm and wav. Is this completely needed?…
Daniel Ramirez-Escudero
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Parsing a Matroska (webm) file , random access streaming

I'm intrested in parsing/streaming an encoded webm file, with random access (seek) get_frame functionality. I've read the matroska specs and I think the Cues section is the way to do that, but I have not found any example on how to do that. Can…
Eliya Mirov
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Confidential content - how to make a webM video file which is not downloadable by anyone but only viewable via Google Chrome browser?

I have a confidential video file, which i need to show this afternoon only to a person, but at the same time i have to make sure nobody else can download this content but only view it via Google Chrome web browser. (if you are smart you can record…
user285594
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I have installed FFmpeg video converter in XAMP server, when i upload the video it is not changed

I have installed FFmpeg video converter in XAMMP server, when i upload the video the video is not changed.it is not changed to webm format. check my code and guide me write way. the video is moving to video directory but it is not changing to webm. …
Rangarajakrishnan
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firefox webm not working

OK, I've tried the suggestions. I've created a web.config file on my godaddy server. I've added the file type to both the .config and the HTML doc. The strangest thing is that, if I load from Filezila by itself the video will run in Firefox, but…
JZeig1
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Not smooth when record the screen using DirectShow with use VP8 encode filter

In GraphEdit, I build a Graph like this: screen capture recorder --> avi decompressor --> color space converter --> MainConcept Color Space Converter --> WebM VP8 Encoder Filter --> WebM Muxer Filter --> file writer The file size is half of that…
followait
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Can't seek on HTML5 video

When I serve a webm video from my server, I can't seem to be able to seek it on Chrome. I've looked around and it seems it has something to do with the content-range, but the information online is extremely unclear. I'm currently running a node…
user1261213
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MP4 video runs slow in videojs player in Firefox and IE but not Chrome

Anyone know why that would be? I've googled but no one seems to have had the same problem. The FF version is 30.0 for Windows. The video (24 fps, 2 minutes) plays but after 10 seconds it is a few seconds behind the audio. The same video file in…
plugincontainer
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Can't scan video with video cursor or set currentTime with popcorn

I'm using popcorn.js for the first time and I'm having a blast with it. I have two problems that seem to be related. I have a six minute video showing off a bike route with all kinds of popcorn.js fun along the way. I'd like to include buttons…
user3440143
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