The VideoLAN Forums

I'm wondering if anyone has had this problem with x.265 video:

The file plays fine with VLC (2.2.4) with default preferences. However, I get stuttering and gray blocks with libvlc (2.2.4).
I'm not using any arguments when creating the instance.

Has anyone else experienced this?

Thanks.

Are you configuring the video output in any way, or do you let LibVLC create its own independent video window?

Are you configuring the video output in any way, or do you let LibVLC create its own independent video window?

I use "libvlc_media_player_set_hwnd()" to direct the output to "my window".
I don't 'process' the output in any way.


Thanks for your time.

Try to comment out the set_hwnd() call and see if it fixes performance problems then. Maybe your window handle is incompatible with some optimizations.

Try to comment out the set_hwnd() call and see if it fixes performance problems then. Maybe your window handle is incompatible with some optimizations.

Thanks again. I will try this tonight and post back.

Try to comment out the set_hwnd() call and see if it fixes performance problems then. Maybe your window handle is incompatible with some optimizations.

I commented out the set_hwnd call. A new window is created but the playback chokes exactly as before.

Is there anything in the VLC default preferences that I might need to "set" in libvlc?

Originally, I thought it was my PC. However, the file plays without any problem with VLC.


Thank you.

Well then, are you sure you did not change the VLC preferences? LibVLC should play pretty much like VLC with default settings.

Well then, are you sure you did not change the VLC preferences? LibVLC should play pretty much like VLC with default settings.

Well, I'm pretty sure.

I will download VLC again tonight and try with a fresh version.

Thanks.

I downloaded VLC 2.2.4 (not the install version). I ran it as is and the x.265 video played fine. This time, I checked CPU usage.
It was between 45%-52% for the 10 seconds I let the video play.

When running the libvlc program, the video stutters and blocks right away and CPU usage is only 22%-28%.

Is there something that might be keeping libvlc from using more of the CPU ?

Thanks.

Repeating myself but did you use default settings in both tests?

Repeating myself but did you use default settings in both tests?

Sorry about the lack of clarity. I downloaded the VLC 2.2.4 again and used it without changing (or even seeing) any settings.

I am not using any arguments in the call to libvlc_new() and I'm not using any calls to libvlc_media_add_option().


Thanks again.

You are not answering the question; I can't help you.

You are not answering the question; I can't help you.

Hmmm...The answer is yes. I am using the defaults for both.
I was trying to be more specific, in case I missed something. That's why I mentioned HOW I believe I'm using defaults.

Thanks for time.