Wow, the difference is clear. The activation of vdpau has brought me a
lot, additionally deactivating Vsync has improved my result
significantly. Thanks Andrew for this great hint.
Sam
On 17.05.19 22:29, Phyllis Smith wrote:
*On Wed, May 15, 2019 at 4:35 PM Andrew Randrianasulu
*On Wed, May 15, 2019 at 4:35 PM Andrew Randrianasulu
> wrote:*
> *wild guess:*
Not so "wild" after all. This was an *amazing discovery*/knowledge that
Andrew passed along that is much appreciated for anyone with an Nvidia card
using Cinelerra and having low frames/sec.
>
> Try to
IgorB:
You are right! I kept trying to recreate the problem and with your
information I could so it was not even a problem after all. Thanks, Phyllis
On Fri, May 17, 2019 at 3:12 AM Igor BEGHETTO wrote:
> Il 17/05/2019 0.55, Phyllis Smith ha scritto:
> > So I had to start Cinelerra from a
Il 17/05/2019 0.55, Phyllis Smith ha scritto:
So I had to start Cinelerra from a clean beginning with nothing set,
and then I could not reproduce the 30 frames/sec only and had the full
60 frames/sec in the non-proxy case already.
The max frame rate achieved is based on your fps Project in
> Try to enable/disable Vsync in ... driver's control application
I also had FPS slowdown with X11-OpenGL (nvidia 460M[obile]).
Disabling VSync solves the issue. Thanks Andrew-R and Pierre for the
advice.
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I wouldn't have believed it But you are absolutely right!
Disable "Sync to VBlank" (option for OpenGL) in NVIDIA X Server
Settings... has solved the problem!
In my tests using 4 mixers, whether the sources are in DNxHD, HDV or
mgeg proxies, all now have an image rate close to 29.97
Pierre:
It sounds like from what IgorB is saying, there is nothing wrong with your
Graphics board and I found at least one place on the internet that
indicated it has vdpau capabiities. I simply can not understand why you
still are getting only about 12 frames/sec using OpenGL and why the mpeg
Hi IgorBeg,
Until recently I also had the same feeling as you that my little video
card was powerful enough for linux editing.
In any case, few Linux software seems to really take advantage of the
real potential power of really powerful external video cards.
I don't use Blender, it doesn't
Pierre, your video card is good, for me.
It has 640 CUDA CORES. Unfortuantely only ffmpeg-nvenc use cuda core and
not for all codec, seems to me.
If you use Blender (http://www.blender.org/) and enable
ComputeDevice=YourGTX you can see that cuda cores save a lot of your
time to render a
wild guess:
Try to enable/disable Vsync in ... driver's control application (I assume you
use proprietary drivers with Nvidia GTX-750ti)
And also same in window manager settings.
Try to set CPU and GPU to maximum performance (I think I observed some
unusually slow playback
when I tried to play
Hello Andrea Paz,
I've always done it from the terminal.
I haven't tried the option from Setting
--> Preferences --> Performance Tab: Use HW Device
Pierre
On 19-05-15 16 h 17, Andrea paz wrote:
Hi, Pierre.
I really appreciate your test and thank you for your reports.
A question: when you
Yes, I am also inclined to believe that my video card is the culprit...
for the lack of frame rate. It would not be able, through Open-GL, to
decode simultaneously the 5 streams (composer + 4 mixers).
I've never played any games on my computers either... but "gamer" cards
are much cheaper
Pierre:
>From your last 2 emails and tests as compared to what I see, I am thinking
that the graphics board is the bottleneck. Doing similar tests with the
Clowns, as compared with your observations below, I am always getting close
to 29.97 fps in either X11 or X11-OpenGL. The reason I think it
Hi, Pierre.
I really appreciate your test and thank you for your reports.
A question: when you activate vdpau, you do it from the terminal o from
Setting --> Preferences --> Performance Tab: Use HW Device?
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This time I completed my tests by adding Proxies to the HDV and AVC
H264.mp4 test projects I did yesterday. Still in the context of use with
4 mixers.
These are Proxys in mpeg with the same characteristics as those I had
tested with DNxHD media.
The results of these tests of the mpeg
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