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Aspect ratio with mplayer2 #510

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
I tried mplayer2 with gnome-mplayer 1.0.3, and when I press the key 'A' the 
aspect ratio is not changing. It changes the size of the image and puts borders 
on the sides, but keeping the default aspect ratio. It's like some kind of 
random zooms, in and out.

Original issue reported on code.google.com by jsevi83 on 30 Apr 2011 at 9:15

GoogleCodeExporter commented 8 years ago 
Try SVN, it should work better with mplayer2

Original comment by kdeko...@gmail.com on 30 Apr 2011 at 9:20

GoogleCodeExporter commented 8 years ago 
Tried with gnome-mplayer r2039 and still have the same problem. The version of 
mplayer2 is git20110422.

Original comment by jsevi83 on 1 May 2011 at 3:12

GoogleCodeExporter commented 8 years ago 
I think what you are seeing is what it is supposed to do. The window size does 
not change, but the aspect of the video in the window changes.

Original comment by kdeko...@gmail.com on 1 May 2011 at 3:50

GoogleCodeExporter commented 8 years ago 
The aspect ratio is not changing, only the size. I'm pretty sure it is not what 
is supposed to do, unless you designed it to work different than with mplayer. 
My screen is 16:9 and I cannot stretch a 4:3 video to use my full screen.

Original comment by jsevi83 on 1 May 2011 at 10:39

GoogleCodeExporter commented 8 years ago 
Set the aspect to "Follow Window" and then resize you window to the expected 
size and then take a screen shot and post it, it if not correct.

The -1 attached screen shot is a 4:3 video, I have then set the aspect to 
follow window and then resized the video to a 16:9 aspect.

The -2 attached screen is the same 4:3 video, but I have set the aspect to 16:9 
and then resized the window, the video is kept at 16:9 no matter what the 
window size is.

This is the way that gnome-mplayer handles the video aspect setting.

Original comment by kdeko...@gmail.com on 1 May 2011 at 12:15

Attachments:

GoogleCodeExporter commented 8 years ago 
[deleted comment]
GoogleCodeExporter commented 8 years ago 
Okay, here are the screenshots:

The first one is the original aspect ratio, 4:3
The second one is "adapt to window" (I made the window wider)
The third one is 16:9

This issue is more clear when you watch a video fullscreen and press 'A' 
several times. The video keeps the aspect ratio and changes the size, putting 
borders around it (sometimes black, sometimes part of the video)

Original comment by jsevi83 on 4 May 2011 at 11:44

Attachments:

GoogleCodeExporter commented 8 years ago 
Yes, it is working as designed. I think you may want some kind of pan and scan 
functionality and as of right now that feature is not available.

The video appears to change size because it actually is. With a video that is 
originally 4:3 and the window size is 320x200 to make the aspect 16:9 and keep 
the window size the same we need to do some math, the new video size is now 
still 320 wide but to be the new aspect the height has to be smaller. 320 * 9 / 
16 = 180 that is why you get the black borders, to fill in the space in the 
window.

Original comment by kdeko...@gmail.com on 4 May 2011 at 11:55

GoogleCodeExporter commented 8 years ago 
So the behavior of gnome-mplayer is different when using mplayer or mplayer2? 
Using mplayer, I can watch a 4:3 video fullscreen and press 'A' to stretch it 
covering all the screen. With mplayer2 this is not possible.

Original comment by jsevi83 on 4 May 2011 at 12:20

GoogleCodeExporter commented 8 years ago 
You're right that it does not work with mplayer2, I think it might be a bug. 
I'll talk to the mplayer2 developers.

Original comment by kdeko...@gmail.com on 4 May 2011 at 12:27

GoogleCodeExporter commented 8 years ago 
mplayer2 is on the left, mplayer is on the right

both videos are originally 4:3, both have aspect forced to 16:9

Original comment by kdeko...@gmail.com on 4 May 2011 at 12:33

Attachments:

GoogleCodeExporter commented 8 years ago 
In my mplayer input.conf file I set:

F5 switch_ratio 1.5
F6 switch_ratio 1.66
F7 switch_ratio 1.78
F8 switch_ratio 1.95

Then I can change the aspect ratio when watching a video with mplayer2 just 
pressing those keys. I don't know if that can help you or if it has nothing to 
do with the 'A' key in gnome-mplayer.

Original comment by jsevi83 on 4 May 2011 at 12:36

GoogleCodeExporter commented 8 years ago 
Found a workaround by using -nokeepaspect with mplayer2, in SVN r2068

Original comment by kdeko...@gmail.com on 4 May 2011 at 1:04