<![CDATA[failed to play html5 video: unsupported codecs]]>for example , http://www.bilibili.com/video/av10870998/ , there will be errors:

[MediaError] Exception: Unsupported codecs Please install H.264 codec in your system

]]>https://forums.opera.com/topic/21144/failed-to-play-html5-video-unsupported-codecsRSS for NodeSun, 13 Sep 2026 09:26:20 GMTTue, 30 May 2017 06:52:38 GMT60<![CDATA[Reply to failed to play html5 video: unsupported codecs on Thu, 01 Jun 2017 14:49:43 GMT]]>Don't know if the could make any difference.

]]>https://forums.opera.com/post/122575https://forums.opera.com/post/122575Thu, 01 Jun 2017 14:49:43 GMT<![CDATA[Reply to failed to play html5 video: unsupported codecs on Thu, 01 Jun 2017 14:20:02 GMT]]>I do not use vlc, so I have no idea if its libffmpeg.so (if it does have one) will work on opera. I really doubt it will, because that lib will be made for use on a player not on a web browser.

As for the extensions, I would only try the first one that says open in vlc. The rest seem iffy to me 😕

]]>https://forums.opera.com/post/122570https://forums.opera.com/post/122570Thu, 01 Jun 2017 14:20:02 GMT<![CDATA[Reply to failed to play html5 video: unsupported codecs on Thu, 01 Jun 2017 13:27:25 GMT]]>Or an extension?

]]>https://forums.opera.com/post/122558https://forums.opera.com/post/122558Thu, 01 Jun 2017 13:27:25 GMT<![CDATA[Reply to failed to play html5 video: unsupported codecs on Wed, 31 May 2017 21:24:30 GMT]]>Would VLC codecs work in Opera?
Changing paths or whatever needed?

]]>https://forums.opera.com/post/122496https://forums.opera.com/post/122496Wed, 31 May 2017 21:24:30 GMT<![CDATA[Reply to failed to play html5 video: unsupported codecs on Wed, 31 May 2017 08:14:47 GMT]]>@wadka92
No. Unlike the other users here who use ubuntu or fedora or some derivative of them, I use debian which does not package chromium-codec-ffmoeg-*, so I am stuck with opera's built in libffmpeg which has crappy html5 support.
Thus, altering a file will not help me at all.

]]>https://forums.opera.com/post/122460https://forums.opera.com/post/122460Wed, 31 May 2017 08:14:47 GMT<![CDATA[Reply to failed to play html5 video: unsupported codecs on Tue, 24 Oct 2017 09:31:08 GMT]]>H.264 videos work on my machine now! Found my solution here: https://forums.opera.com/post/122456

]]>https://forums.opera.com/post/122457https://forums.opera.com/post/122457Tue, 24 Oct 2017 09:31:08 GMT<![CDATA[Reply to failed to play html5 video: unsupported codecs on Wed, 31 May 2017 07:15:46 GMT]]>@jimunderscorep do html5 videos work on your machine?

I installed the chromium-media-libs package on fedora and had to change the path in the ffmpeg_preload_config.json from lib to lib64:

cat /usr/lib64/opera/resources/ffmpeg_preload_config.json 
[
  "lib_extra/libffmpeg.so",
  "/usr/lib64/chromium-browser/libffmpeg.so",
  "/usr/lib64/chromium-browser/libs/libffmpeg.so"
]

find / -name libffmpeg.so 2> /dev/null
/home/wadka/.local/share/Trash/files/libffmpeg.so
/usr/lib64/chromium-browser/libffmpeg.so
/usr/lib64/electron/1.3.13/libffmpeg.so
/usr/lib64/opera/libffmpeg.so

So everything should work, but it still doesn't...

]]>https://forums.opera.com/post/122455https://forums.opera.com/post/122455Wed, 31 May 2017 07:15:46 GMT<![CDATA[Reply to failed to play html5 video: unsupported codecs on Tue, 30 May 2017 07:22:27 GMT]]>Yes. Opera has poor html5 support, it is discussed in many threads at this forum if you check.
If you want to improve it, install the chromium-codecs-ffmpeg-* packages for your distro, provided that they exist.

]]>https://forums.opera.com/post/122356https://forums.opera.com/post/122356Tue, 30 May 2017 07:22:27 GMT