The VideoLAN Forums

Posted: **26 Feb 2019 21:32**

Hello!

I've encountered a new problem with VLC (I think it was in the last update) where I'm unable to play a ProRes444 file. I used to be able to play this formatwith the player but now all I get is a bunch of flashing. The audio plays fine. Any one else having this issue?

I'm using Windows 10 64 bit

Posted: **27 Feb 2019 15:36**

Try this workaround:
https://forum.videolan.org/viewtopic.ph ... 71#p485671

Posted: **14 Jan 2021 13:38**

Setting the video output to OpenGL instead of Automatic fixed that problem for me. That is with Win10 v. 20H2, Nvidia quadro k5000 card, VLC v. 3.0.11, and a plain HD ProRes 422 file.

It's under under Tools > Preferences, Video tab : Output. There are 2 OpenGL entries, and both work. The "Direct3D9" entry also works.

Posted: **27 Jul 2022 16:03**

I am currently using 3.0.17.4 (Windows 10 Pro, 64-bit) and a few weeks ago the first ProRes 444 files started to make problems while using the VLC player.
I am no longer able to see the content (I can only hear it). Right now, there is hardly any ProRes 422 or 444 file left that I can play probably with the VLC player.

I already tried to change the suggested Output with no improvement.

Help please! I'm happy for any suggestion!

Posted: **27 Jul 2022 20:07**

Please open Tools -> Messages (set Verbosity to 2) before you start the playback, and then paste the full resulting log here or on Pastebin.com if it's too long.

Also upload a short sample of your original problematic file to Zippyshare.com or to WeTransfer.com and then post the link to the file here.
https://www.zippyshare.com
https://wetransfer.com

If needed cut it with DGsplit and read here about how to do it:
https://forum.videolan.org/viewtopic.ph ... 35#p193335
200 MB max should be enough.

Posted: **04 Aug 2022 01:43**

I am also having trouble watching videos of MOV Prores 4444 Alpha.
Sound plays but no picture.
The workaround doesn't help me.
Video file made with After Effects 2021.
I'm using the Portable version of VLC -3.0.17.4
I have Windows 10 installed. Version 10.0.19044 / Build 19044
AMD Ryzen 5 processor with Radeon Vega

You can check my test video file on your machine. https://www64.zippyshare.com/v/Mz87rKSJ/file.html
Debug message information: https://pastebin.com/6n45bm3v
My OpenGL: https://i.imgur.com/M9AvFPI.jpeg

Posted: **04 Aug 2022 09:43**

Yes, I can reproduce the issue while it's playing fine with FFplay and MPV.

Code: Select all

Format                                   : ProRes
Format version                           : Version 1
Format profile                           : 4444
Codec ID                                 : ap4h
Bit rate mode                            : Variable
Bit rate                                 : 130 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 (30000/1001) FPS
Color space                              : YUVA
Chroma subsampling                       : 4:4:4
Scan type                                : Progressive

Messages from VLC:

Code: Select all

mp4 warning: unknown box type tmcd (incompletely loaded)
mp4 warning: unknown box type tmcd (incompletely loaded)
mp4 warning: unknown box type gmin (incompletely loaded)
mp4 warning: unknown box type tmcd (incompletely loaded)
mp4 warning: unknown handler type in stsd (incompletely loaded)
mp4 warning: unknown box type ALFA (incompletely loaded)
mp4 warning: unknown box type FIEL (incompletely loaded)
mp4 warning: unknown box type cTIM (incompletely loaded)
mp4 warning: unknown box type cTSC (incompletely loaded)
mp4 warning: unknown box type cTSZ (incompletely loaded)
mp4 warning: unknown box type XMP_ (incompletely loaded)
...
mp4 debug: Unrecognized FourCC ap4h

Messages from FFplay:

Code: Select all

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'd:\temp\samples\test 4k. prores 4444 alpha.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2022-08-03T22:00:44.000000Z
  Duration: 00:00:10.48, start: 0.000000, bitrate: 132730 kb/s
  Stream #0:0[0x1](eng): Video: prores (4444) (ap4h / 0x68347061), yuva444p12le(tv, bt709, progressive), 3840x2160, 130393 kb/s, SAR 1:1 DAR 16:9, 29.97 fps, 29.97 tbr, 30k tbn (default)
    Metadata:
      creation_time   : 2022-08-03T22:00:44.000000Z
      handler_name    : Apple Video Media Handler
      vendor_id       : appl
      encoder         : Apple ProRes 4444
      timecode        : 00:00:00;00

You should create a new report ticket on the VLC Trac with your above report, the links to your logs and to your sample file and the link to this thread:
https://code.videolan.org/videolan/vlc/-/issues

Posted: **10 Nov 2022 22:42**

The reason is found. There is no audio track. In more detail https://code.videolan.org/videolan/vlc/-/issues/27198
I went back to the old version VLC Player 3.0.16

The VideoLAN Forums

Playing a ProRes file in VLC issue

Playing a ProRes file in VLC issue

Re: Playing a ProRes file in VLC issue

Re: Playing a ProRes file in VLC issue

Re: Playing a ProRes file in VLC issue

Re: Playing a ProRes file in VLC issue

Re: Playing a ProRes file in VLC issue

Re: Playing a ProRes file in VLC issue

Re: Playing a ProRes file in VLC issue