Previewer is very fast and I am sure it can complete previewing within 40ms. So there must be some other delay in the application.
Thanks, Brijesh Jadav ________________________________ From: Ondrej Pindroch [mailto:[email protected]] Sent: Thursday, May 21, 2009 7:25 PM To: Jadav, Brijesh R Cc: davinci-linux-open-source Subject: RE: How to improve image latency Display frame rate is 25fps it is PAL output. Ondrej Pindroch SoftHard Technology ltd. -----Original Message----- From: "Jadav, Brijesh R" <[email protected]> To: Ondrej Pindroch <[email protected]>, davinci-linux-open-source <[email protected]> Date: Thu, 21 May 2009 19:05:53 +0530 Subject: RE: How to improve image latency Hi, What is the display frame rate? Thanks, Brijesh Jadav ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Ondrej Pindroch Sent: Thursday, May 21, 2009 5:48 PM To: davinci-linux-open-source Subject: How to improve image latency Hi I have an aplication which is useing CCDC PREVIEWER and V4L2 for output. There is one buffer between CCDC and PREVIEWER (exactly 3 buffers) and for output it is used buffer from V4L2. For now I have latency 160 - 200ms. I have made some mistakes and loosing frames (hudge bunche of errors). Than I have had latency less than 100ms. I have alredy measured time needed for capture and proccessing. It was 5-7ms. >From capture to get frame buffer from V4L2 it take almost 40ms (25fps for PAL) Have you any idea where I get this 120ms of additional latency. Frame rate of sensor is almost 60fps Thanks Ondrej Pindroch SoftHard Technology ltd.
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