Depending on the hardware encoder implementation, VP8/9 also may give better image quality results. As a bonus, they are open, while H.264 is riddled with software patents. Chrome supports both, and Firefox supports VP8, and they work properly. Proper: Don't use H.264, but VP9 or VP8.Other software - or Chrome in later versions - might break over it. It's a bad solution, because we're passing in the wrong mimetype, it doesn't match the content. The file content will still say 'Matroska', but on Chrome will play it. Hacky: After recording, just change the mimetype back to video/webm codecs=h264,opus.Which then doesn't work, because won't play the Matroska mimetype. the response is factually incorrect and defeats the entire purpose of isTypeSupported().Ĭhrome ignores the mimetype that we pass in the MediaRecorder constructor, and instead returns video/x-matroska codecs=avc1,opus. The only two container formats for AV1 are Matroska and the ISO Base Media File Format (video/mp4). play it in // won't work, if MatroskaĬhrome responds true to isTypeSupported('video/webm codecs=h264,opus'), but Chrome actually does not support this combination, i.e. This bug is more relevant now with AV1 support in Firefox. (Note: batch conversion is supported, so you can load more than one file to save time. Run the Video Converter and drag & drop your MKV files to the program, or click 'Add Video' button to locate the MKV files you want to add. If (MediaRecorder.isTypeSupported(wantMimeType)) ) Converting MKV files for Playback thru Emby Media Server. Reproduction: const wantMimeType = 'video/webm codecs=h264,opus' The MKV Codec is a format which provides support to a large number of audio and video files so that they can be played on the users Windows Media Player, etc.

Matroska codec for media browser