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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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Movie compatibility on Android & mp4 problems

I'm writing an app which plays small cartoon movies in Android. I chose mp4 as it seemed to work well on phones, and appears to rescale dynamically for different screen resolutions. Great. The problem is that when I use Bluestacks the movies turn…
user1947095
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Many types of video types not working with MPMoviePlayerController?

I am finding that there are many types of files that just don't work with MPMoviePlayerController in iOS 5.1. They include webm, ogv, flv (of course), mpeg2, and a few more that I forgot. Is there any way to improve the chances of playback of these…
Frank E
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JWPLayer 6 in Firefox Must Load Entire OGG File Before Playing?

Site: http://www.chicagobluesnetwork.com/Shows/Listen/sharon-lewis-texas-fire-4 u: anothertest p: testpass1 In FireFox: The first track is relatively small, but if you try the second track you will notice a long pause before it plays as the entire…
dreadlocks1221
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webm video keeps resizing in Chrome during playback

I converted a video to webm through Any Video Converter and it plays fine in Firefox. However, in Chrome it constantly resizes itself during playback and I'm not sure why. I previously used Miro converter, but that video wouldn't play in Firefox at…
coolpup
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Firefox Webm video only plays when seeking

An odd thing with firefox. This video will only play when it's seeked from ~6 seconds onwards http://www.wealthplanning.tv/media/videos/introduction.webm html link here too http://wealthplanning.tv/media/videos/test.html Works fine in Chrome, and…
Alistair R
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Issue with webm video format playback in Firefox

Using VideoJS I'm having issues with the webm format failing to play back in Firefox. After researching this issue here I made the appropriate changes to my htaccess file. That fixed ogg and ogv playback, but not webm. I've tested the webm video…
jsuissa
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Directly viewing WebM or OGG file works in Firefox but not in Chrome

I'm having an issue with getting local videos working for the HTML5 Video element. If I try and view a local OGG or WebM file directly, in Firefox 16.0.2 it works, but in chrome 22 it does not work! However, if I view an OGG file on another…
heffo
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webmmux directshow seeking queues IStream

I am using the directshow filter for muxing a vp8 and vorbis. And MOST IMPORTANTLY I am sending (trying to send actually) the webm file in real time. So there is no file being created. As data is packed into webm after being encoder i send it off…
Evren Bingøl
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DIrect Show, MUX to Renderer

Are Muxers generally implemented to be written to a file. I want to connect a renderer to the output pin of a mixer but it fails. I have implanted my renderer so that I have the source code and I can step through it. If I connect it to a encoded…
Evren Bingøl
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Streaming video from multiple cameras to html5 player

Im trying to figure out a way of having a server which has a camera (or multiple cameras) connected via usb (firewire, whatever...) and then streams the video to users. The idea so far is to have a red5 server which streams the camera feed as a…
BineG
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How to code webm header to open in Firefox?

I use this code to create an mkv file with a webm video: Code The video that is generated can be opened in vlc and mplayer, however, firefox sais: video can't be played because the file is corrupt How do I have to change the header so I can open it…
Jan Rüegg
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The best mp3, the lightest wav? python pytube compression conversion webm opus mp3 spek audio spectral

hi i'm learning python i discorver pytube to download on youtube the music. my goal is to have the best audio quality. it seem that on youtube the best that you can have is 160 kbps. so i this: from pytube import YouTube url = input("Entre l'URL de…
Thesirix
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How to use palettegen=stats_mode=single plus paletteuse=new and paletteuse=dither together?

I've made a short script to convert all .webm files in a directory into .gif files... forfiles /s /m *.webm /c "cmd /c ffmpeg -y -i "@FILE" -lavfi palettegen=stats_mode=single[pal],[0:v][pal]paletteuse=new=1 -y "GIF_@FNAME".gif" I've tried to add…
Astro Space Moth
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How to get duration of webm video file when duration is not explicitly defined

I have a segment of a webm file with an incomplete header, I want to cut this segment down to 10 seconds by trimming x seconds off the front of the file, however I am unable to use the -sseof tag because the end of the file isn't defined. I have…
Neil Hutcheon
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