Hi again:
I disabled Blue Screen only and rendered, still the jitter existed.
Again I disabled keyspillmopup only. Both produced jitter.
I tried once again by disabling Blue Screen and Keyspillmopup, still
it produced jitter.
So It cannot be ruled out that the culprit is Blue Screen.
Seems like it is more than those two effects for sure. If you need
videos, I can supply you.
---------------
//STARTING RENDERING: false , false , "/usr/bin/melt" ,
"atsc_1080p_30" , "avformat" , "-" ,
"/home/zenny/kdenlive/scripts/multi_threads4_wo_blue_screen_only.sh.mlt"
, "/home/zenny/kdenlive/multi_threads4_wo_blue_screen_only.mp4" , () ,
("properties=x264-medium", "g=120", "crf=20", "ab=160k",
"progressive=1", "threads=4", "real_time=-4") , 0 , 613
Started render process: "/usr/bin/melt"
"/home/zenny/kdenlive/scripts/multi_threads4_wo_blue_screen_only.sh.mlt
in=0 out=613 -profile atsc_1080p_30 -consumer
avformat:/home/zenny/kdenlive/multi_threads4_wo_blue_screen_only.mp4
progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
threads=4 real_time=-4"
Rendering of "/home/zenny/kdenlive/multi_threads4_wo_blue_screen_only.mp4"
finished
//STARTING RENDERING: false , false , "/usr/bin/melt" ,
"atsc_1080p_30" , "avformat" , "-" ,
"/home/zenny/kdenlive/scripts/multi_threads4_wo_keyspillmopup_only.sh.mlt"
, "/home/zenny/kdenlive/multi_threads4_wo_keyspillmopup_only.mp4" , ()
, ("properties=x264-medium", "g=120", "crf=20", "ab=160k",
"progressive=1", "threads=4", "real_time=-4") , 0 , 613
Started render process: "/usr/bin/melt"
"/home/zenny/kdenlive/scripts/multi_threads4_wo_keyspillmopup_only.sh.mlt
in=0 out=613 -profile atsc_1080p_30 -consumer
avformat:/home/zenny/kdenlive/multi_threads4_wo_keyspillmopup_only.mp4
progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
threads=4 real_time=-4"
Rendering of "/home/zenny/kdenlive/multi_threads4_wo_keyspillmopup_only.mp4"
finished
//STARTING RENDERING: false , false , "/usr/bin/melt" ,
"atsc_1080p_30" , "avformat" , "-" ,
"/home/zenny/kdenlive/scripts/multi_threads4_wo_blue_screen_keyspillmopup_only.sh.mlt"
, "/home/zenny/kdenlive/multi_threads4_wo_blue_screen_keyspillmopup_only.mp4"
, () , ("properties=x264-medium", "g=120", "crf=20", "ab=160k",
"progressive=1", "threads=4", "real_time=-4") , 0 , 613
Started render process: "/usr/bin/melt"
"/home/zenny/kdenlive/scripts/multi_threads4_wo_blue_screen_keyspillmopup_only.sh.mlt
in=0 out=613 -profile atsc_1080p_30 -consumer
avformat:/home/zenny/kdenlive/multi_threads4_wo_blue_screen_keyspillmopup_only.mp4
progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
threads=4 real_time=-4"
Rendering of
"/home/zenny/kdenlive/multi_threads4_wo_blue_screen_keyspillmopup_only.mp4"
finished
On 11/20/14, Zenny <garbytr...@gmail.com> wrote:
> Okay, here is an update:
>
> The reason for jitter is the chroma key (blue screen) effect while
> multi-threaded.
>
> As you advised, I rendered with a single thread and also by disabling
> effects one by one. Like you stated, when Chroma Key effect (Blue
> Screen) is disabled, the jitter went away.
>
> However, except the single-threaded with effects, all were ran with
> the command line with the scripts generated by kdenlive.
>
> MLT is at 0.9.3+git20141107.3d96fa5c-0ubuntu0~sunab~trusty1
> KDEnlive is at 0.9.10+git20141112.5e5e462a-0ubuntu0~sunab~trusty1
> frei0r-plugins is at 1.4.0+git20141112.baa08d27-0ubuntu0~sunab~trusty1
>
> If you need, I can share video, however below is the output from the
> command line fyi.
>
> ----
>
> //STARTING RENDERING: true , false , "/usr/bin/melt" ,
> "atsc_1080p_30" , "avformat" , "-" ,
> "/tmp/kde-zenny/kdenliveJE4550.mlt" ,
> "/home/zenny/kdenlive/single_thread_with_all_effects.mp4" , () ,
> ("properties=x264-medium", "g=120", "crf=20", "ab=160k",
> "progressive=1", "threads=4", "real_time=-1") , 0 , 613
> QDBusConnection: session D-Bus connection created before
> QCoreApplication. Application may misbehave.
> QDBusConnection: session D-Bus connection created before
> QCoreApplication. Application may misbehave.
> Started render process: "/usr/bin/melt"
> "/tmp/kde-zenny/kdenliveJE4550.mlt in=0 out=613 -profile atsc_1080p_30
> -consumer avformat:/home/zenny/kdenlive/single_thread_with_all_effects.mp4
> progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
> threads=4 real_time=-1"
> Object::connect: No such signal
> org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
> Object::connect: No such signal
> org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
> Rendering of "/home/zenny/kdenlive/single_thread_with_all_effects.mp4"
> finished
> Object::connect: No such signal
> org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
> Object::connect: No such signal
> org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
> Object::connect: No such signal
> org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
> Object::connect: No such signal
> org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
> //STARTING RENDERING: false , false , "/usr/bin/melt" ,
> "atsc_1080p_30" , "avformat" , "-" ,
> "/home/zenny/kdenlive/scripts/multhreaded4_with_effects_001.sh.mlt" ,
> "/home/zenny/kdenlive/multi_threads4_with_all_effects.mp4" , () ,
> ("properties=x264-medium", "g=120", "crf=20", "ab=160k",
> "progressive=1", "threads=4", "real_time=-4") , 0 , 613
> Started render process: "/usr/bin/melt"
> "/home/zenny/kdenlive/scripts/multhreaded4_with_effects_001.sh.mlt
> in=0 out=613 -profile atsc_1080p_30 -consumer
> avformat:/home/zenny/kdenlive/multi_threads4_with_all_effects.mp4
> progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
> threads=4 real_time=-4"
> Rendering of "/home/zenny/kdenlive/multi_threads4_with_all_effects.mp4"
> finished
> //STARTING RENDERING: false , false , "/usr/bin/melt" ,
> "atsc_1080p_30" , "avformat" , "-" ,
> "/home/zenny/kdenlive/scripts/multhreaded4_wo_alpha_operations_test_001.sh.mlt"
> , "/home/zenny/kdenlive/multi_threads4_wo_alpah_operations.mp4" , () ,
> ("properties=x264-medium", "g=120", "crf=20", "ab=160k",
> "progressive=1", "threads=4", "real_time=-4") , 0 , 613
> Started render process: "/usr/bin/melt"
> "/home/zenny/kdenlive/scripts/multhreaded4_wo_alpha_operations_test_001.sh.mlt
> in=0 out=613 -profile atsc_1080p_30 -consumer
> avformat:/home/zenny/kdenlive/multi_threads4_wo_alpah_operations.mp4
> progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
> threads=4 real_time=-4"
> Rendering of "/home/zenny/kdenlive/multi_threads4_wo_alpah_operations.mp4"
> finished
> //STARTING RENDERING: false , false , "/usr/bin/melt" ,
> "atsc_1080p_30" , "avformat" , "-" ,
> "/home/zenny/kdenlive/scripts/multhreaded_wo_alphao_keyspillmopup_test_001.sh.mlt"
> , "/home/zenny/kdenlive/multi_threads4_wo_alpha_keyspillmopup.mp4" ,
> () , ("properties=x264-medium", "g=120", "crf=20", "ab=160k",
> "progressive=1", "threads=4", "real_time=-1") , 0 , 613
> Started render process: "/usr/bin/melt"
> "/home/zenny/kdenlive/scripts/multhreaded_wo_alphao_keyspillmopup_test_001.sh.mlt
> in=0 out=613 -profile atsc_1080p_30 -consumer
> avformat:/home/zenny/kdenlive/multi_threads4_wo_alpha_keyspillmopup.mp4
> progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
> threads=4 real_time=-1"
> Kdenlive-render: JOB ABORTED BY USER...
> //STARTING RENDERING: false , false , "/usr/bin/melt" ,
> "atsc_1080p_30" , "avformat" , "-" ,
> "/home/zenny/kdenlive/scripts/multhreaded_wo_alphao_keyspillmopup_test_001.sh.mlt"
> , "/home/zenny/kdenlive/multi_threads4_wo_alpha_keyspillmopup.mp4" ,
> () , ("properties=x264-medium", "g=120", "crf=20", "ab=160k",
> "progressive=1", "threads=4", "real_time=-4") , 0 , 613
> Started render process: "/usr/bin/melt"
> "/home/zenny/kdenlive/scripts/multhreaded_wo_alphao_keyspillmopup_test_001.sh.mlt
> in=0 out=613 -profile atsc_1080p_30 -consumer
> avformat:/home/zenny/kdenlive/multi_threads4_wo_alpha_keyspillmopup.mp4
> progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
> threads=4 real_time=-4"
> Rendering of
> "/home/zenny/kdenlive/multi_threads4_wo_alpha_keyspillmopup.mp4"
> finished
> //STARTING RENDERING: false , false , "/usr/bin/melt" ,
> "atsc_1080p_30" , "avformat" , "-" ,
> "/home/zenny/kdenlive/scripts/multi_threads4_wo_alpha_keyspillmopup_blue_screen.sh.mlt"
> ,
> "/home/zenny/kdenlive/multi_threads4_wo_alpha_keyspillmopup_blue_screen.mp4"
> , () , ("properties=x264-medium", "g=120", "crf=20", "ab=160k",
> "progressive=1", "threads=4", "real_time=-4") , 0 , 613
> Started render process: "/usr/bin/melt"
> "/home/zenny/kdenlive/scripts/multi_threads4_wo_alpha_keyspillmopup_blue_screen.sh.mlt
> in=0 out=613 -profile atsc_1080p_30 -consumer
> avformat:/home/zenny/kdenlive/multi_threads4_wo_alpha_keyspillmopup_blue_screen.mp4
> progress=1 properties=x264-medium g=120 crf=20 ab=160k progressive=1
> threads=4 real_time=-4"
> Rendering of
> "/home/zenny/kdenlive/multi_threads4_wo_alpha_keyspillmopup_blue_screen.mp4"
> finished
>
> On 11/19/14, Dan Dennedy <d...@dennedy.org> wrote:
>> On Wed, Nov 19, 2014 at 4:27 AM, Zenny <garbytr...@gmail.com> wrote:
>>
>>> On 11/18/14, Dan Dennedy <d...@dennedy.org> wrote:
>>> > On Tue, Nov 18, 2014 at 11:13 AM, Zenny <garbytr...@gmail.com> wrote:
>>> >
>>> >> Hi again:
>>> >>
>>> >> Trying to help some friends to create composite video. But when I try
>>> >> to render using a single processor, the rendering is fine, but when
>>> >> tried with multiple processors, it produces jitters as seen on the
>>> >> attachments (20s of videos respectively for comparison).
>>> >>
>>> >> Some filter (Effect in Kdenlive) is having a problem with
>>> >> multi-threading,
>>>
>>>
>>> I came across a forum post which stated otherwise:
>>>
>>> https://forum.kde.org/viewtopic.php?f=265&t=115590&sid=5254b0bb04f00274298cb7dfb3755286&start=15#p324465
>>>
>>>
>> On the contrary, that forum confirms my allegation! There _is_ an effect
>> that is causing the problem. It is not difficult to isolate which one it
>> is, but only _after_ you have reproduced the problem. Alas, I have not
>> reproduced the problem because no one has told me how. I see that user
>> jkolodziej's video also is doing some chroma key effect. So, you guys can
>> either help out, or wait until I stumble upon it myself. Once the
>> offending
>> effect is isolated, it is quick and easy to make a fix that prevents
>> multi-threaded access to that effect or its core routine.
>>
>> --
>> +-DRD-+
>>
>
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