webm video with alpha support

[saveriocastellano]

hello, does the video player support alpha? I have tried playing the webm video with alpha from google but the transparent areas are displayed as black..

[soywiz]

I will check. Do you know when they added alpha support? Maybe the version of the library I'm using doesn't support it. I think I updated the version of the library a year ago or so.

[saveriocastellano]

hello, thanks for the reply. This is what i'm trying to workout, it looks like google has recently introduced support
for alpha in the Webm project, look at this page:

https://chromiumcodereview.appspot.com/15342004

However this support is in media/webm project, as far as I understand you are not using this in haxe-openfl-webm,
you are just using libvpx. Is that correct?

[soywiz]

I think that code is the chromium's source code:
https://github.com/scheib/chromium/blob/master/media/base/decoder_buffer.cc

I'm using libwebm:
https://github.com/soywiz/haxe-openfl-webm/tree/master/project/libwebm

Didn't they add support for alpha in libwebm?

[saveriocastellano]

yes it looks like google added alpha support to libwebm recently, have a look the the second item in this list:

http://code.metager.de/source/history/google/WebM/libwebm/mkvmuxerutil.cpp

so maybe I should try to fetch the latest version of libwebm and rebuild your haxe-openfl-webm with it right?

[soywiz]

Yeah. Try to do that. If now I will try too in a few days when I have some time.
Thanks!

[saveriocastellano]

i will try that and let you know how it goes, thanks.

[thornebrandt]

Any update on alpha channel for webm ?