The VideoLAN Forums

Hi,

I'm not sure if it is a bug, but I'm unable to get Libvlc 4.0 working under Windows 8 without having DX11. It seem to be that no matter which vout I try to use DX11 will be chosen and fails.
I use in this case, which works in VLC3 properly:

--vout=direct3d9
--avcodec-hw=dxva2

The other issue is that the video size does not fit the declared window handle and is always equal to the video size. I use an updated build of PaslibVLC since a couple of functions where deprecated.

Maybe somebody has an advise to solve these two issues.

Christian

Which build are you using exactly? Can you share full logs from beginning to end?

This sample should work fine https://github.com/videolan/vlc/blob/master/doc/libvlc/d3d9_player.c (uses the callbacks API, but that's unrelated)

Hi,

right now I use the nightly build, but I also tried to use builds from last year.

I'm aware of both samples (DX11 and DX9). The problem is that the player should be platform independent and I try to avoid the usage of the DirectX API at all costs. My work around at the moment is that I remove the libdirect3d11_plugin.dll if the running system is < Windows 10.
The biggest problem is right now, that it seem to be that libvlc_media_player_set_hwnd is not tested in VLC4, in both demos it is marked as don't use.
// DON'T use with callbacks libvlc_media_player_set_hwnd(p_mp, hWnd);

Technically I do

libvlc_media_add_option(p_md, "vout=direct3d9");
libvlc_media_add_option(p_md, "avcodec-hw=dxva2");

I'm not sure if these options are correct to force the usage of DX9 at all costs.

and then I set the hwnd of main form. The video is played inside the defined window, but the dimensions of the video are the one of the video and it is not scaled to the window boundary. It works with all older VLC builds.

The complete log looks like this: https://pastebin.com/raw/RFYZC4Hb
With the removed plugin it looks like this: https://pastebin.com/raw/SCch3Njf

Oh and one other issue is: No matter if I use overlay or no-overlay as option vlc stops after loading the plugins. Are these options obsolete if so it should at least not crash libvlc?

Christian

Addentum:
vlc-4.0.0-20191213-0249-dev-win32.zip and older do not crash, vlc-4.0.0-20191220-0248-dev-win32.zip is the first build where it crashes because of the DX1 plugin.
The scaling video issue is in all VLC4 builds back till 2018.

The vout option cannot be applied to media items since version 1.0.0.

Ah okay, thanks for the answer. I did not tested it with VLC3 and I just thought I might use this in order to work around the crash.
Unluckily the first I thought simpler issue seem to be more complicated:

The video ignores the dimension of the window and there seem to be no way to fit it.

I'm aware of both samples (DX11 and DX9). The problem is that the player should be platform independent and I try to avoid the usage of the DirectX API at all costs. My work around at the moment is that I remove the libdirect3d11_plugin.dll if the running system is < Windows 10.

Thank you! This workaround also works for my case, in which I need to remove libd3d11va.

Hope there will be a easier way to pass --vout parameters.