Opened 11 years ago

Closed 11 years ago

Last modified 10 years ago

#6248 closed defect (fixed)

First time starting a video with Vdpau is fine, second time I get a blank screen with audio in the background

Reported by: sascha.zielinski@… Owned by: Isaac Richards
Priority: minor Milestone: 0.22
Component: MythTV - Video Playback Version: head
Severity: medium Keywords: vdpau
Cc: Ticket locked: no

Description

I am using latest Debian experimental with KDE4.2 and Mythtv 19968 svn. The first time, I start a video using VDPAU, runs fine. If I start a second the screen stays blank and audio is playing. after pressing ESC the video ends as normal. Only if I restart mythfrontend, playback starts as normal again.

I have attached a mythfrontend.log with "-v most,playback" because i saw nothing unusual without "most".

Attachments (3)

mythfrontend.log.bz2 (22.0 KB) - added by sascha.zielinski@… 11 years ago.
mythfrontend -v most,playback
mythfrontend.log.2.bz2 (6.7 KB) - added by sascha.zielinski@… 11 years ago.
USE_VDPAU_COLORKEY=1
VIDEO_010.3gp (151.7 KB) - added by sascha.zielinski@… 11 years ago.
Strange Bars

Download all attachments as: .zip

Change History (11)

Changed 11 years ago by sascha.zielinski@…

Attachment: mythfrontend.log.bz2 added

mythfrontend -v most,playback

comment:1 Changed 11 years ago by markk

Status: newinfoneeded_new

Have you tried using:-

USE_VDPAU_COLORKEY=1 mythfrontend

If that doesn't help, what card/driver are you using and is composite enabled or disabled?

comment:2 Changed 11 years ago by sascha.zielinski@…

I am using a 8600GT 512MB, today I am testing with a 9500GT 512MB I have disabled composite extension as suggested in the nvidia forums, to enable vsync.

After adding the option USE_VDPAU_COLORKEY=1 the viedeo always starts, but I get a strange playback behavior. It looks like there is only 1 frame displayed. I see only 1 - 2 vertikal bars, which are about 4cm high. they are moving from top to bottom. It looks the same, if I disable bobdeinterlace.

I attached the mythfrontend.log with " -v most,playback" and a video to show how the video looks like (colorkey is enabled, currently using a 9500GT 512MB.

comment:3 Changed 11 years ago by anonymous

Can you see whether this was fixed by r19969? (it should be - and USE_VDPAU_COLORKEY is no longer required)

On a slightly different note - the output you've described is symptomatic of trying to use colorkeying when the overlay is not being used. Given that you've disabled composite, there must be something else (sli, opengl etc) that is stopping VDPAU from using the overlay.

Changed 11 years ago by sascha.zielinski@…

Attachment: mythfrontend.log.2.bz2 added

USE_VDPAU_COLORKEY=1

Changed 11 years ago by sascha.zielinski@…

Attachment: VIDEO_010.3gp added

Strange Bars

comment:4 in reply to:  3 Changed 11 years ago by sascha.zielinski@…

Replying to anonymous:

Can you see whether this was fixed by r19969? (it should be - and USE_VDPAU_COLORKEY is no longer required)

On a slightly different note - the output you've described is symptomatic of trying to use colorkeying when the overlay is not being used. Given that you've disabled composite, there must be something else (sli, opengl etc) that is stopping VDPAU from using the overlay.

With r19969 the video is displayed correct. but with this version bobdeinterlace is corrupt again :/.

2009-02-11 16:47:58.184 VDPAU Error: Error at util-vdpau.cpp:1599 (#0, UNKNOWN) 2009-02-11 16:47:58.184 Disabled deinterlacing

Yes I have disabled composite and enabled opengl. With r19968 I could use bobdeinterlace.

comment:5 Changed 11 years ago by markk

Resolution: fixed
Status: infoneeded_newclosed

Fixed in r19969.

comment:6 Changed 10 years ago by Janne Grunau

(In [20808]) fix DVB subtitles post ffmpeg sync. Refs #6248

comment:7 Changed 10 years ago by Janne Grunau

(In [20810]) silence mpegts demuxer post ffmpeg sync. Refs #6248

comment:8 Changed 10 years ago by Janne Grunau

[20808] and [20810] should have referenced #4862

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