Pale Moon forum

Hello, when I try to play the video on this page: https://fosdem.org/2019/schedule/event/ ... ster_game/
I’m told "No video with supported format and MIME type found".

If I use youtube-dl to get the video I get a webm with vp9 and opus inside.

I have MSE enabled, PM 28.3.1 64 bit (official build), on Gentoo.

on my Win7 - video plays. but Console has an errors - wich is actualy a video link Mixed content - Warnings in Web Console
Check your setting(about:config) filter "mixed"
security.mixed_content.block_active_content
security.mixed_content.block_display_content

@ tooshorttoolong

When I clicked on the you link you provided, it took me to the site. Once on the page I clicked on the start button for the video, it immediately enlarged and the 50 minute video started to play for me (with audio) after waiting about 6 seconds of time.

I'm using the video settings for linux Pale Moon (28.3.1) which in my case for video are below:

Under Video (which are all enabled with a check mark):

1) Enable Media Source Extensions (MSE)
2) Enable MSE for MP4 video
3) Enable MSE for WebM video

I don't use Gentoo. I'm using 64 bit linux Pale Moon 28.3.1 running in 64 bit linux Mint 19.1 (Tessa) Xfce.

BTW, thanks for providing the direct clickable link.

jars_ wrote:on my Win7 - video plays. but Console has an errors

I do get this in the console:

Content Security Policy: The page’s settings blocked the loading of a resource at https://mirror.cyberbits.eu/fosdem/2019 ... _game.webm (“media-src https://fosdem.org http://video.fosdem.org http://ftp.belnet.be http://mirrors.dotsrc.org http://ftp.heanet.ie http://mirror.as35701.net http://ftp.osuosl.org http://bofh.nikhef.nl http://fosdem.cu.be http://ftp.fau.de http://mirror.onet.pl https://video.fosdem.org https://ftp.belnet.be https://mirrors.dotsrc.org https://ftp.heanet.ie https://mirror.as35701.net https://ftp.osuosl.org https://bofh.nikhef.nl https://fosdem.cu.be https://ftp.fau.de https://mirror.onet.pl”).

I see some of the mirrors are http, not https… However security.mixed_content.block_display_content is set to false, and setting the other setting to false too does not change anything.

@Night Wing, thanks for testing. I wonder why it’s working for you and not for me.

tooshorttoolong wrote:@Night Wing, thanks for testing. I wonder why it’s working for you and not for me.

Linux distros are "different" from one another. You're using Gentoo and I'm using Mint. When I installed Mint, the codecs for video and sound were done by default upon installation for Mint. And when the video was playing for me, my uBlock Origin 1.16.4.8 adlocker was enabled too.

The people at fosdem clearly didn't get the memo how to use CSP.

FTR, it works for me also on Devuan ascii.

I'm running Gentoo, and it works for me. I believe that PM talks to ffmpeg, so it may be a problem with ffmpeg on your system. "emerge -pv ffmpeg" shows that I have the following USE flags enabled...
X bzip2 encode gpl hardcoded-tables network opengl postproc threads truetype vaapi vpx webp x264 x265 zlib

The "vpx webp x264 x265" flags, and especially "vpx webp" are probably the most critical flags. Does your ffmpeg have them enabled?

One more item; there is an "opus" flag, but I don't have it enabled for ffmpeg.

Walter Dnes wrote:The "vpx webp x264 x265" flags, and especially "vpx webp" are probably the most critical flags. Does your ffmpeg have them enabled?

Yep, I have vpx and opus enabled. webp is not enabled but I doubt it is needed since it’s for still pictures.
mpv which depends on ffmpeg is perfectly able to play the video.

However maybe the problem is I have ffmpeg 4.1 installed and not 3.3.6?