no audio in h.264 video in HTML5

[NoiKristinsson]

On pages like Coursera.org there is no audio in the HTML5 video until perian is uninstalled.
Have not seen this on other pages.

Browser: Safari 7.1.2
Os: 10.9.5
Perian: up to date

[MaddTheSane]

Do you know what codec it uses, both with and without Perian installed?

The only thing I can think of is that it’s trying to use a52 (Dolby Surround) when Perian is installed.

On Jan 16, 2015, at 4:33 AM, NoiKristinsson notifications@github.com wrote:

On pages like Coursera.org there is no audio in the HTML5 video until perian is uninstalled.
Have not seen this on other pages.

Browser: Safari 7.1.2
Os: 10.9.5
Perian: up to date

—
Reply to this email directly or view it on GitHub #12.

[NoiKristinsson]

I don't know what codecs it uses or how to find that out.
But as I took a better look the video file itself, which is a webm container and the audio is Vorbis.
I've tried to change audio output in preferences, but it yields no results.

[kode54]

The problem is, when you installed Perian, the WebM video took priority over the MP4 video, and Perian strangely does not support Vorbis audio.

So, maybe this could be turned into a feature request for Vorbis and possibly also Opus audio?

[MaddTheSane]

You can use XiphQT https://xiph.org/quicktime/: It should be able to play Ogg Vorbis audio. However, it hasn’t been updated in awhile, so it doesn’t support Opus audio.

On May 21, 2015, at 10:36 PM, Chris Moeller notifications@github.com wrote:

The problem is, when you installed Perian, the WebM video took priority over the MP4 video, and Perian strangely does not support Vorbis audio.

So, maybe this could be turned into a feature request for Vorbis and possibly also Opus audio?

—
Reply to this email directly or view it on GitHub #12 (comment).

[kode54]

Does not magically add support for Ogg Vorbis or even VP8 video to audio/video tags.