Streaming wmv can't be scaled up on Ubuntu 16.04

[guidry]

When wtaching mms wmv video on 16.04 64 bit,
for example this site:
digichannel.go2school.com.tw/lt/main.asp?page=dailyTV

If I is to copy the mms link and open it in SMplayer,

it can play, but the video can't be scaled up or maximized in full screen mode which means there are bugs .


video card Intel® HD Graphics 520 (Skylake GT2) cpu Intel® Core™ i5-6200U CPU @ 2.30GHz × 4

[rvm]

What is the mms you're trying to open? I can't find it.

[guidry]

The mms url is constantly changing, this is today's url:
mms://113.196.108.6/studioclassroom/lt/201605

[rvm]

The videos in that site have a very low resolution. Anyway I can't reproduce your problem, the video scales, I can see them in fullscreen.

[guidry]

Do you use Ubuntu 16.04 64bitwith mplayer as engine for SMplayer?
I think this scaling issue may due to the codec provided by Ubuntu 16.04, even VLC has the same issue.
Any wmv regardless of mms or offline for mplayer cannot be full-screened on Ubuntu 16.04.
On the other hand, using mpv engine can be scaled, but it cannot resolve that mms real url is rtsp.

[rvm]

I tested with ubuntu 16.04 (32-bit) with mplayer. The video scales.

What video output are you using?

[guidry]

I found that Ubuntu 16.04 64bit use userdefined xv, as its driver.
That's buggy when it works with mplayer engine.
Thanks to your remind, I found I can change the video output driver.
With gl selected, it can be scaled up now.
Even though we can get around the issue by not selecting xv, it would be
better to fix xv issue on Ubuntu 16.04 64bit, because many users of Ubuntu are
beginners like me. They will get stuck, too.
The xv driver issue can be reproduced either in Lenovo ideapad 300 noetbook (Intel video card) and
even in virtual box in another desktop PC( nvidia card).

[rvm]

I'm running Ubuntu 16.04 (32bit) on a virtualbox (Windows host). In this system xv is not available for mplayer so I can't test it.

In another computer with Ubuntu 12.04 but with a very recent version of mplayer, xv works fine.

In the development version of SMPlayer, xv isn't the default. Actually SMPlayer doesn't set any default video output. It lets mplayer to select the one to use.

[guidry]

Ubuntu 16.04 64bit replaced X11 with Mir, that's maybe the cause of xv issue. I guess.