[Solved] Video decoding regression on VLC for win 3.0.2

[kongo47]

Hello,

after updating to VLC 3.0.3 I noticed that some videos that used to play just fine now freezes completely after less than a second of playback.
I narrowed the regression to this:

3.0.1 win64 : OK
3.0.2 win64 : KO
3.0.2 win32 : KO

Characteristics of a problematic video :
Codec : H264 - MPEG-4 AVC (part 10) (avc1)
Video Resolution : 1920x1080
Framerate : 60
Decoded Format : Planar 4:2:0 YUV

During playback on 3.0.2, the stats window show that most of the frames are still counted as displayed (but video is completely frozen).

I then compared the message outputs (level: warning). Here is the first diff block below.

In 3.0.1:

dxva2 warning: Unsupported profile -1 for H.264 variable-length decoder, no film grain technology
dxva2 warning: Unsupported profile -1 for H.264 variable-length decoder, no film grain technology, Flash
dxva2 error: FindVideoServiceConversion failed
direct3d9 error: SetThumbNailClip failed: 0x800706f4
direct3d11 error: Could not Create the D3D11 device. (hr=0x80004001)
direct3d11 error: Direct3D11 could not be opened
direct3d11 error: SetThumbNailClip failed: 0x800706f4
direct3d9 warning: trying surface pixel format: YV12
avcodec warning: plane 0 not aligned: disabling direct rendering

In 3.0.2:

avcodec info: Using DXVA2 (AMD Radeon HD 6800 Series, vendor ATI(4098), device 26424, revision 0) for hardware decoding

sometimes I have this in 3.0.2 :
avcodec error: more than 5 seconds of late video -> dropping frame (computer too slow ?)

The two versions are running on the same environment.
The issue reproduces every time.

Note : I looked for a similar report on the bugtracked and found nothing.
Btw, I expected a "bug appeared in version x.x.x" field, but there isn't one apparently.

[Lotesdelere]

Please upload a short sample of a problematic file to either Zippyshare.com (200 MB max) or to EmbedUpload.com, the latter will upload the file for you to several other hosts (use the default ones) and then post the link to the file here.

If needed cut it with DGsplit and read here about how to do it:
viewtopic.php?f=14&t=57724&p=193335#p193335
50 MB max should be enough.

[Jean-Baptiste Kempf]

Please share the full logs.

[kongo47]

As suggested by Jean-Baptiste, I tried disabling the hardware decoding feature (in Input/Codec > Video Codecs > FFmpeg).

The config change does fix the bug!
Thank you for the tip.

I am going to put this as solved.

I'm surprised that neither my CPU nor my GPU seem to be satured during playback.

[Jean-Baptiste Kempf]

We still need logs to improve for everyone else

This is probably an issue with a driver, so we need logs.

[Jaime]

Here is a log with the same issue

https://www6.zippyshare.com/v/u9qeQTAR/file.html