This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

.mp4 support extension source code

macb6497
macb6497
more options

For my website I currently use .flv videos.

I want to switch to .mkv videos to show on my website but I don't believe firefox has support for mkv videos, only chrome.

I want to create an extension that allows for the viewing of .mkv videos.

I know firefox supports .mp4 videos and I would like a view of that source code so that it would be far more easy to incorporate support for .mkv videos.

Is there a place where I can get .mp4 support source code so that I can write an extension for .mkv videos?

Thanks,

For my website I currently use .flv videos. I want to switch to .mkv videos to show on my website but I don't believe firefox has support for mkv videos, only chrome. I want to create an extension that allows for the viewing of .mkv videos. I know firefox supports .mp4 videos and I would like a view of that source code so that it would be far more easy to incorporate support for .mkv videos. Is there a place where I can get .mp4 support source code so that I can write an extension for .mkv videos? Thanks,

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Firefox's natively supported codecs include WebM and OGG Theora. For the reasons described on this page, Firefox is limited in the types of encoding it can support; I don't think Firefox native plays H.264-encoded MP4: https://developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements

I hadn't heard of .mkv before; I found this article with more information: http://en.wikipedia.org/wiki/Matroska Support was requested a couple of years ago, but the request was shelved. See 476727 – Support the Matroska (MKV) container.

As for where the code is: you can download the source code of Firefox, but the folks on this support board wouldn't be able to quickly point you to the parts relevant to video decoding. You might want to join one of the developer mailing lists or groups for more guidance there.

Gewysig op deur jscher2000 - Support Volunteer