[kdenlive] Preview rendering is rendering ... wait ... every other second...?

[Harald Albrecht]

Hi,

project is definitely 25/1 frames per second. Alas, I better drop this 
parameter ... or since you updated the profile, going with the stock 
MJPEG preview rendering profile is probably better anyway.

Did I mention that I really like the new preview rendering feature? It's 
now one of the reasons to live on git master for the time until Kdenlive 
16.08... :)

Now if only preview rendering would run faster than ordinary rendering 
... which it doesn't: I see only 14% CPU usage for preview rendering, 
while ordinary rendering sees at least twice as much CPU usage. (Reminds 
me of the processing thread=1 issue on my core i7.)

Best regards,
Harald

Am 26.06.2016 um 20:27 schrieb Jean-Baptiste Mardelle:
> On Sunday, June 26, 2016 8:16:44 PM CEST, Harald Albrecht wrote:
>> Am 25.06.2016 um 23:29 schrieb Jean-Baptiste Mardelle:
>> The timeline preview profile must be in the form: s=1920x1080 
>> vcodec=mjpeg qscale=1 r=25
>> There should be no audio setting in the preview rendering profile, 
>> since audio is taken from the real source clips.
>> It seems I also need to add "progressive=1".
>
>> However, this still renders only the 1st, 3rd, 5th, ... second and 
>> leaves out the 2nd, 4th, ... second. Any idea? FTIW, I'm using a mov 
>> container, can this be the cause?
>
> Are you sure your project is 25 fps ? For an MJPEG profile, you should 
> be able to drop the fps and frame size, leaving just:
>
> f=mov vcodec=mjpeg progressive=1 qscale=1
>
> with extension mov.
>
> Works for me...
>