Mailing List Archive: MythTV: Commits

Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )

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mythtv at cvs

Nov 2, 2009, 9:40 AM

Post #1 of 14 (2370 views)
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Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )

#7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )
------------------------------+---------------------------------------------
Reporter: satfan39 | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Mlocked: 0
------------------------------+---------------------------------------------
I run svn 22681 and I have no problem to receive astra dvb-s2 HD channels
such Astra+ HD, Arte HD or the French, Spanish, Italian HD or even German
HD channels sur as EinsFestival HD or ORF1 HD. My CPU is an dual core
E05350 an does not exceed 50% CPU, much lesser when I use vdpau instead of
XV, so CPU power is not the issue here.

For ARD 1 HD and ZDF HD, video is suttering although CPU utilisation does
not exceed 50% with XV. Same suttering problems when I used vdpau ( nvidia
8400gs ). Tried different deinterlacers and renderers but the problem
persists ( little or no effects )

I was able to watch the recorded ZDF HD and ARD HD transmissions without
any suttering at all using an external VLC player.. so this points to a
problem with the internal player of Myth. Tried to play the recordings
with an external mplayer player but it failed, the video didn' even start.
Finally, tried with xine and it worked partially ( audio was terrible
cracking an suttering ).

I will post the mythtv log and possibly also the mplayer log.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7481>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Nov 2, 2009, 10:13 AM

Post #2 of 14 (2309 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

mythtv at cvs

Nov 2, 2009, 10:47 AM

Post #3 of 14 (2302 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

#7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )
------------------------------+---------------------------------------------
Reporter: satfan39 | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Mlocked: 0
------------------------------+---------------------------------------------

Comment(by satfan39):

The 4 logs attached were taken from the same mythtv recording on ARD 1 HD
( FTA channel on Astra 19E)

- log_mythfrontend shows that there are my prebuffering with the
transmission on ARD 1 HD, it works ( livetv & playback ) but image i
unstable and sutters nearly permanently

- log_good_vlc_play_back shows a perfect playback from the same file using
an external VLC player !

-log_unsucessfull_mplayer_playback shows that mplayer did start to play
the file for a very short period of time but then stopped.

- logunsucessfull_xine_playback shows that for this same recording xine
could not play the file ( first frame is no key frame !).

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7481#comment:2>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Nov 3, 2009, 4:39 AM

Post #4 of 14 (2275 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

mythtv at cvs

Nov 8, 2009, 10:03 AM

Post #5 of 14 (2216 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

#7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )
------------------------------+---------------------------------------------
Reporter: satfan39 | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Mlocked: 0
------------------------------+---------------------------------------------

Comment(by anonymous):

It seems to be a (H264-)decoder problem because CoreAVC-Decoder works fine
(when porting to MythTV 0.22). But on the other side the H264-decoder-
sources of Myth0.22 and Mplayer are identical (last week) but mplayer
seems to be work.

Corious is that recordings of EinsFestivalHD from middle of september
generates no problems but current recordings of EinsFestivalHD (with the
same videoloop) have problems.

Another point is that current recordings of EinsFestivalHD freeze MythTV
0.21 completely (only kill helps). Using CoreAVC only are not enough here.
There is the need to backport the HandleH264PrePkt of avformatdecoder.cpp
from MythTV 0.22. This function handles among other things the GOP-
management.

So the idea is that changes in the parameters of H264-codec and especially
in the GOP-management is the cause for this problem.

If there is interest I can submit current CoreAVC-patches for 0.21 and
0.22 and can send the recordings of EinsFestivalHD from middle of
september and end of october. Let me know.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7481#comment:4>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Nov 11, 2009, 1:35 PM

Post #6 of 14 (2174 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

mythtv at cvs

Nov 21, 2009, 2:52 AM

Post #7 of 14 (2045 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

mythtv at cvs

Nov 25, 2009, 12:38 AM

Post #8 of 14 (1981 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

mythtv at cvs

Nov 25, 2009, 5:05 AM

Post #9 of 14 (1975 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

mythtv at cvs

Nov 25, 2009, 5:48 AM

Post #10 of 14 (1977 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

mythtv at cvs

Nov 25, 2009, 5:48 AM

Post #11 of 14 (1980 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

#7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )
-------------------------------------+--------------------------------------
Reporter: satfan39 | Owner: janne
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - Video Playback | Version: unknown
Severity: medium | Mlocked: 1
-------------------------------------+--------------------------------------
Changes (by stuartm):

* owner: ijr => janne
* component: MythTV - General => MythTV - Video Playback

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7481#comment:10>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Jan 1, 2010, 11:05 AM

Post #12 of 14 (1681 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

#7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )
-------------------------------------+--------------------------------------
Reporter: satfan39 | Owner: janne
Type: defect | Status: new
Priority: minor | Milestone: 0.23
Component: MythTV - Video Playback | Version: head
Severity: medium | Mlocked: 1
-------------------------------------+--------------------------------------
Changes (by stuarta):

* keywords: => upstream ffmpeg
* version: unknown => head
* milestone: unknown => 0.23

Comment:

This appears to be fixed in upstream ffmpeg.
This would be fixed by the next ffmpeg resync

Stuart

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7481#comment:11>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Feb 9, 2010, 9:31 AM

Post #13 of 14 (1371 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

#7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )
-------------------------------------+--------------------------------------
Reporter: satfan39 | Owner: janne
Type: defect | Status: closed
Priority: minor | Milestone: 0.23
Component: MythTV - Video Playback | Version: head
Severity: medium | Resolution: duplicate
Mlocked: 1 |
-------------------------------------+--------------------------------------
Changes (by janne):

* status: new => closed
* resolution: => duplicate

Comment:

duplicate of #7522

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7481#comment:12>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Feb 9, 2010, 10:18 AM

Post #14 of 14 (1380 views)
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Re: Ticket #7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback ) [In reply to]

#7481: Video suttering on ZDF HD and ARD HD on Astra ( LiveTv and Playback )
-------------------------------------+--------------------------------------
Reporter: satfan39 | Owner: janne
Type: defect | Status: closed
Priority: minor | Milestone: 0.23
Component: MythTV - Video Playback | Version: head
Severity: medium | Resolution: fixed
Mlocked: 1 |
-------------------------------------+--------------------------------------
Changes (by janne):

* resolution: duplicate => fixed

Comment:

(In [23516]) libavformat: backport ffmpeg changeset 20160, Fixes #7481

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7481#comment:13>
MythTV <http://www.mythtv.org/>
MythTV
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