Bug 83179

Summary:	The color of 1080P video played by VLC player would get fuzzy/distorted with smaller screen or fullscreen within smaller resolution such as 1280x1024.
Product:	Spice	Reporter:	Perry Tsai <perry.tsai>
Component:	spice-gtk	Assignee:	Spice Bug List <spice-bugs>
Status:	RESOLVED WONTFIX	QA Contact:
Severity:	major
Priority:	medium	CC:	bugzilla, perry.tsai
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Windows (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	Snapshot for video by vlc player with shrinking screen Snapshot for video by vlc player with original screen (normal color)

Description Perry Tsai 2014-08-28 08:16:35 UTC

SPICE Client: Virt-viewer v5.6 under Windows 7 or 8
SPICE Server : RHEV 3.3 
Guest OS : Windows 7sp1 (2cores/2GB)
VLC player : v 2.1.3 
 
Procedure: 
 1. Connect WIndows 7 Guest OS with remote-viewer SPICE client. 
 2. Play a 1080P media file by VLC player with fullscreen mode which's set as 1280x1024 resolution, the color is fuzzy.(720P&480P video is ok) 
 3. Play a 720P media file by VLC player with fullscreen mode setting as 1024x768 resolution, the color is fuzzy.(480p is ok) 
 4. The color would be more fuzzy with smaller screen. CentOS or Ubuntu thin-client with virt-viewer v5.6-2 have the same issue. 

 PS: Windows media player 12 in guest OS -> no color distort issue, but always not sync with audio.

Comment 1 Marc-Andre Lureau 2014-10-24 16:52:26 UTC

Could you provide screenshots of the issue?

Is this related to video streaming (try with qemu streaming-video=off)

thanks

Comment 2 Perry Tsai 2014-10-27 11:26:42 UTC

Created attachment 108504 [details]
Snapshot for video by vlc player with shrinking screen

Comment 3 Perry Tsai 2014-10-27 11:29:20 UTC

Created attachment 108505 [details]
Snapshot for video by vlc player with original screen (normal color)

Comment 4 Perry Tsai 2014-10-27 11:34:39 UTC

(In reply to Marc-Andre Lureau from comment #1)
> Could you provide screenshots of the issue?
> 
> Is this related to video streaming (try with qemu streaming-video=off)
> 
> thanks

You can refer to attached snapshot:
attachment 108504 [details] -> Fuzzy color with shrinking screen of vlc player.
attachment 108505 [details] -> normal color with original screen of vlc player.
PS:
VMware Horizon-View & Microsoft RDP on the same Guest-OS Windows 7 :
-> No fuzzy-color issue whatever shrinking screen of vlc with 1080P video.

And we also find each video would appear this color-distorted issue while shrinking the resolution which smaller than original video quality.

Comment 5 Victor Toso 2015-02-18 13:31:13 UTC

> And we also find each video would appear this color-distorted issue while
> shrinking the resolution which smaller than original video quality.

Could you confirm if this only happens with VLC?

Comment 6 Victor Toso 2016-05-04 09:33:33 UTC

I'm closing this due inactivity: NEEDINFO since 2015-02-18

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