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Ticket #7067: Initial DVD playback speed too fast.

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mythtv at cvs

Sep 15, 2009, 12:33 PM

Post #1 of 37 (3252 views)
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Ticket #7067: Initial DVD playback speed too fast.

#7067: Initial DVD playback speed too fast.
----------------------------------------------------+-----------------------
Reporter: Johnny Stenback <mythtv [at] jstenback> | Owner: awithers
Type: defect | Status: new
Priority: major | Milestone: unknown
Component: Plugin - MythVideo | Version: head
Severity: medium | Mlocked: 0
----------------------------------------------------+-----------------------
When playing a ripped DVD (.iso), the initial playback speed is on the
order of 2x of what it should be. The audio plays back at the right speed,
but the video plays too fast. I can't say for sure that I see this with
every single DVD, but the ones I've tried with do show this problem. If I
skip forward/back (PgUp/PgDown) the video and audio re-syncs, but the
video speed remains too fast, if I fast forward and hit play again, the
speed drops down to the expected 1x, and the video and audio stay in sync.

This is all with the internal player, using VDPAU on an Nvidia ION system.
I'm happy to provide any additional info that would help out here. I
*think* this behavior started on trunk a couple of weeks ago, but I don't
have version numbers to back that up :( But I do see it with trunk
versions from the last couple of weeks for sure.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7067>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Sep 15, 2009, 9:32 PM

Post #2 of 37 (3152 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Oct 7, 2009, 2:11 PM

Post #3 of 37 (3115 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Oct 8, 2009, 3:33 PM

Post #4 of 37 (3107 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Oct 8, 2009, 11:29 PM

Post #5 of 37 (3107 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Oct 9, 2009, 8:37 AM

Post #6 of 37 (3110 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

#7067: Initial DVD playback speed too fast.
----------------------------------------------------+-----------------------
Reporter: Johnny Stenback <mythtv [at] jstenback> | Owner: janne
Type: defect | Status: infoneeded_new
Priority: major | Milestone: unknown
Component: MythTV - Video Playback | Version: head
Severity: medium | Resolution:
Mlocked: 0 |
----------------------------------------------------+-----------------------

Comment(by Johnny Stenback <mythtv [at] jstenback>):

Oh, and I forgot to mention what I did in that log I attached last night.
The log shows the frontend starting up, me finding the DVD SAHARA.iso and
playing it. Once playback starts (previews etc), I hit menu, jumped to the
root menu and hit play. Right from the start of the DVD (i.e. in the
previews and in the menus) I see the video playing too fast. Once the
actual movie starts, I skipped a coupled of chapters into the movie (it's
more obvious that the playback is way too fast once there's people
involved) and then hit fast forward, followed by pause (meant to hit
play), and then play. After that playback speed settles to the correct
speed, and remains correct for the whole movie if I was to let it play.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7067#comment:5>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Oct 21, 2009, 1:50 PM

Post #7 of 37 (3045 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Oct 23, 2009, 10:23 AM

Post #8 of 37 (3026 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

#7067: Initial DVD playback speed too fast.
----------------------------------------------------+-----------------------
Reporter: Johnny Stenback <mythtv@…> | Owner: janne
Type: defect | Status: infoneeded_new
Priority: major | Milestone: unknown
Component: MythTV - Video Playback | Version: head
Severity: medium | Mlocked: 0
----------------------------------------------------+-----------------------

Comment(by joe@…):

I can confirm this bug. I have the identical issue playing actual DVD's,
and .iso images from an NFS share. I opened ticket #7349

Lets compare notes:
I don't use any GPU acceleration (I use an ATI card with binary drivers),
nor do I use any deinterlacing.
I can play .img files (created on my Mac) with no problems, which seems
strange because I would expect DVD image formats to work similarly if the
problem is with DVD playback.
I am using an older Dell Optiplex GX260 (2.5 Ghz, 1GB, 845G chipset),
running Mythbuntu 9.10 Beta, fully updated. Issue presented with all 0.22
versions tested, though I am currently running the daily builds of 0.22
trunk.

Notice any similarities?

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7067#comment:7>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Oct 23, 2009, 2:01 PM

Post #9 of 37 (3032 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

#7067: Initial DVD playback speed too fast.
----------------------------------------------------+-----------------------
Reporter: Johnny Stenback <mythtv@…> | Owner: janne
Type: defect | Status: infoneeded_new
Priority: major | Milestone: unknown
Component: MythTV - Video Playback | Version: head
Severity: medium | Mlocked: 0
----------------------------------------------------+-----------------------

Comment(by Johnny Stenback <mythtv@…>):

I see the problem with a Zotac IONITX motherboard based diskless frontend
using VDPAU, and I also see it playing back the DVDs under VNC where there
is no GPU, so it's all done in software. I however do *not* see this
problem on a different system I recently upgraded from 0.21 to 0.22 pre1,
and that system is using an old Nvidia GeForce 6200 graphics card for
playback.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7067#comment:8>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Oct 29, 2009, 3:42 PM

Post #10 of 37 (2951 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Oct 29, 2009, 5:47 PM

Post #11 of 37 (2950 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Oct 30, 2009, 11:18 PM

Post #12 of 37 (2922 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 13, 2009, 4:44 AM

Post #13 of 37 (2809 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 19, 2009, 12:45 AM

Post #14 of 37 (2760 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 20, 2009, 12:00 AM

Post #15 of 37 (2746 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 21, 2009, 11:03 PM

Post #16 of 37 (2697 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 21, 2009, 11:13 PM

Post #17 of 37 (2697 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 22, 2009, 12:08 AM

Post #18 of 37 (2694 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 23, 2009, 4:55 AM

Post #19 of 37 (2657 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 23, 2009, 5:47 PM

Post #20 of 37 (2654 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 30, 2009, 7:53 PM

Post #21 of 37 (2501 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

#7067: Initial DVD playback speed too fast.
----------------------------------------------------+-----------------------
Reporter: Johnny Stenback <mythtv@…> | Owner: janne
Type: defect | Status: closed
Priority: major | Milestone: unknown
Component: MythTV - Video Playback | Version: head
Severity: medium | Resolution: fixed
Mlocked: 0 |
----------------------------------------------------+-----------------------

Comment(by Joel):

This ticket should be re-opened since the SVN changes were reverted.

I ran into this bug upon upgrading to 0.22. I patched the
0.22.0+fixes22594-0ubuntu1 version that ships with Ubuntu Karmic Koala
with r422881, r22891 and the patch in #7644, and the severe sync issues
that I was experiencing in .iso playback disappeared. Thanks, Davin
McCall, for your patches.

I agree with the above recommendation... re-open or re-commit the changes
from r422881, r22891 and the patch in #7644. Additionally, it would be
great if these could be added to the 0.22 fixes branch.
Thanks!

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7067#comment:20>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Nov 30, 2009, 7:55 PM

Post #22 of 37 (2494 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Nov 30, 2009, 8:06 PM

Post #23 of 37 (2490 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Dec 1, 2009, 5:06 PM

Post #24 of 37 (2445 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

mythtv at cvs

Dec 13, 2009, 11:01 PM

Post #25 of 37 (2187 views)
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Re: Ticket #7067: Initial DVD playback speed too fast. [In reply to]

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