The VideoLAN Forums

I don't believe your Shiny White Box Limited extension has anything to do with VLC.
I would simply trash that extension.

Short answer - you cannot output advanced audio formats via bitstream under MacOS. It was reportedly possible on the Intel Mac Mini's if they were running Windows, but MacOS doesn't support output of more than 5.1 in bitstream. Apparently, the M1 Mac Mini doesn't have the HDMI hardware to make it po...

Thanks for circling back and correcting the CPU vs GPU sharpening device. It would be fantastic if GPU sharpening could be enabled on the Mac Mini M1. I strongly prefer the integration of VLC for playback and desktop browser in one unit. Makes random information access MUCH faster than a streaming d...

I just realized, you didn't explicitly say that sharpening is being done by the GPU instead of the CPU. Back in 2018, I read that VLC was doing sharpen filter in CPU after decode by GPU.

Has that changed in the current build to using GPU to perform sharpen?

Well, at least you confirmed it is using the GPU for sharpening rather than the CPU. This leaves hope that a Mac Studio Pro or Ultra might be able to sharpen 4K without frame drops. If performance scales with GPU and VLC was written to take advantage of more GPU cores, scaling speed should improve q...

Here is the log file from playing a 4K movie mkv. Sharpening is on. I can see the sharpen filter being added to the chain. Also, I see the frame drops in the latter portion of the log. I don't know how determine whether the GPU or CPU is being used for sharpening. www.cosalient.com/picture/jvc/log%2...

Ah.. Full pathname. Will do tonight Given, you are asking for the GPU verification, I take it sharpening doesn't always use the GPU, but sometimes the CPU? If it is the GPU, then we do have a better chance of a Mac Studio being fast enough. It's single CPU core speed is not that much better than a M...

I'd love to vlc -vv, but doing so in Terminal doesn't seem to find the executable. I'm assuming that is how one gets it to run with -vv option. Do I need to do something to make it runnable from the terminal command line? I have only run VLC from it's GUI. Turning on the video sharpening either via ...

In my home theater room, sharpening 4K does yield a visible improvement. Then again, I'm on some higher end JVC 4K projectors and sit 1.1 screen widths away from a 150 inch screen. With that combination, sharpening in VLC is quite appreciable, even with 4K content. VLC will do it with some 4K conten...

My Mac Mini M1 is fast enough to sharpen 1080P video without dropping frames. That works fabulously for making HD sharper before it goes to a home theater projector. However, it simply is not fast enough to sharpen 4K bluray video without dropping frames. Does anyone have experience with sharpening ...

Yes! The fix in nightly build works. No more having to manually set audio output device after every VLC launch.

This fix has made VLC much more pleasant to use with an AV receiver.

One other gotcha.... The Mac is likely to refer to 2 channels if it ever goes to sleep or receiver is set to HDMI pass through while on standby. If Mac Mini is kept awake (I use Ampehtamine) and receiver renegotiates the HDMI connection upon coming out of standby, 8 channel setup is more likely to b...

Hopefully this work around save others some time. Channel assignment issues have cropped up on VLC periodically over the years. This is not a current problem for 5.1 audio, but 7.1 is definitely a problem. MacOS coreaudio on my Mac Mini running Catalina is prevented by Apple from passing raw 7.1 sur...

Finally realized that bug tracker uses completely different user account system.
No wonder forum credentials didn't work.
Created new account for bug tracker and filed a proper bug report.

Just noticed that I must manually set audio out device after EVERY launch of VLC back to "Built-in Ouput (Encoded Output)". That's the optical output of my Mac Mini. Current VLC version 3.04 and the latest nightly builds of VLC all revert to "System Sound Output Device" upon laun...

Log is longer this time. Don't know why it was so short before. Also, noted that deinterlace turns on with blend. Turning off deinterlace from menu doesn't stop the frame drops. mkv debug: | | | + Track Number=3 mkv debug: | | | + Track Type=audio mkv debug: | | | + Track Default=0 mkv debug: | | | ...

OK. Must not be adding another filter. Something in the normal render chain + the sharpen filter ---> too longer to render and deliver frames in time. 1. Look in the logs... 2. Posted the log above. 3. Asked how to verify filters 4. Look in the logs... 5. Log is above. Nothing about another filter i...

How does one check which filters are turned on in the playback chain? (I did reset all settings and I don't see any other filters checked in the all settings video dialog) BTW, this problem is present in the nightly builds for 2.1.1 and 2.2.0. Appears to be pretty well embedded in the current code. ...

Yes, something in 2.1.0's new video processing chain is causing it + sharpen to take much longer to render frames. If anything, 2.1.0 on a Mac now increases the minimal CPU needed to play back with sharpening to something like a 6.0 GHz quad core - something that isn't in any existing Mac. For now, ...

Under 2.0.8 one sees the startup messages, but no frame drops messages, even after allowing several minutes playback and refreshing the log. You just see the sharpen filter applied message. No drops. mkv debug: Virtual chapter Chapter 07 from 2406779375 to 2776023250 - mkv debug: Virtual chapter Cha...

Partial log with sharpen turned on under 2.1.0 during 1080p playback. Rest of log not posted because it simply adds lots more drop frame messages.... main debug: VLC media player - 2.1.0 Rincewind main debug: Copyright © 1996-2013 the VideoLAN team main debug: revision 2.1.0-0-gedd8835 main debug: ...

Recent VLC 2.1.0 release causes frame drops during use of video sharpening of 1080P playback. Previously, VLC 2.0.8 was able to apply sharpening without dropping frames. Now on the same hardware (2.7 GHz Quad Core i7 MBP Retina) frames are frequently dropped when sharpen is applied. Perhaps 1/5 of f...