information about genlock:
Through the BNC genlock connector on board the NVIDIA Quadro FX 3000G, the graphics video timing can be synchronized to an external
timing source. In turn, this source provides a periodic signal to the display system to lock the vertical refresh rate.
Typically, a workstation user plugs a “house sync” signal into the graphics
board - usually set at NTSC (U.S.) or PAL (Europe) rates - instructing the
graphics board to trigger various edges of the external sync signal.
vertical frequency 49.999Hz (i can t put 50.000Hz under Powerstrip)
holo3D stable 50fps, no freeze
PhynxRGB stable 50fps
filestream 512x512 mjpeg stable 50fps, no freeze
holo3d + Phynx RGB stable 50fps, no freeze
holo3d + Phynx RGB + mjpeg movie 512x512 no stable 50fps, freeze and strobe
vertical frequency 49.899Hz
holo3D no stable 49-50fps, freeze but no strobe
PhynxRGB no stable 49-50fps
filestream 512x512 no stable 49-50fps, freeze
holo3d + Phynx RGB no stable 49-50fps, freeze and strobe
holo3d + Phynx RGB + filestream 512x512 mjpeg no stable 49-50fps, freeze and strobe
I have tests also this :
- change timings memory (more agressive),
- overclock(always approx. 50% of total cpu)
- burn the cpu (with low priority, no changing),
- try with mjpeg (512x512 pixels) or mpeg2 (Elecard or Purevideo) file
it is always the same problem.
all my sources (holo3d, PhynxRGB and filestream) are at 25.00 and 50.00 Hz.
The filestream is strange. I have tried with progressive or interlaced movie. when I do a pause or stop the fps is 33. then after a moment it increases to 50.
I did a player with dds texture but I haven’t good performance in playing. I convert my movie to images with dds with ddsconverter2 software. I choose dxt1c format, build mipmaps, filter to box and add dithering options. Do you think it’s good ?
i have tried to use NvPerfHUD software. i think it’s good for find problems.
but i have a problem. See the attach file.
NvPerfHud.jpg (67.9 kB)