Hi there,
DM365/368's ISIF(VPFE) can get 720/60p BT.1120?
I need the output frame rate 30 fps, but my CCD sensor may output only 60fps.
Best regards,
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
I got information that BT.1120 720P30fps was used for initial internal demo long time back.
As, the device can support up to 120MHz, I don't see any reason there is an issue (unless 60fps has special format which I don't believe).
Please let me know if you have any concern in detail.
Regards,
Sang-Yong
On AVServer_DesignGuide_IPNC_DM365_IMX035.pdf page 26 of 41,
on "sensorFps" line, stated "The sensor fps. Sensor frame timing is adjusted
based on this value. Valid values from 5 to 30. ".
So I wonder that 60 fps is OK.
720/60p's pixel clock is 74.25MHz.
Regards,
Hi,
Yes, you should be able to scale the capture to 60fps. BTW, in our system if we set sensorfps = 60, then whole of the system by default would run at 60fps. You would have to define the frameSkipMask in avServerUi.c to drop alternate frames and use only 30fps.
Regards,
Anshuman
PS: Please mark this post as verified, if you think it has answered your question. Thanks.
Now, I understand your point (IMX035 Sony sensor).
The sensor uses LVDS interface for 720P60fps (CMOS parallel can be used for 720P30fps) and DM36x doesn't support LVDS parallel interface.
Therefore you cannot use it.
It is not the matter of speed but the electical format fo sensor output.
regards,
Sang-Yong
Hi Anshuman,
On "frameSkipMask", stated "Only valid when captureRawInMode = AVSERVER_CAPTURE_RAW_IN_MODE_DDR_IN".
But my input video format is YUV(not RAW).
So DM365 cannot skip some frames, it's OK?
Regards,
Damien
Hi,
Damien said:On "frameSkipMask", stated "Only valid when captureRawInMode = AVSERVER_CAPTURE_RAW_IN_MODE_DDR_IN".
But my input video format is YUV(not RAW).
Current implementation of IPNC Ref Design is not having support for YUV input mode capture, so you could see that the capture mode definition has RAW_IN_MODE_DDR_IN. Actually, in this definition, RAW input is not the important thing. DDR_IN is the more important thing. The same definition can work for YUN IN mode with DDR input mode. Only thing is it need some changes in the driver. We are going to release IPNC Ref Design ver 2.5 (based on Aptina MT5 sensor) that would support YUV input mode also and can support all such requirements. If you need a patch to get it working, i can provide it to you, but it will take you some time to change it in your system.
Regards,
Anshuman
Attached the patch based on IPNC Ref Design (Aptina MT5 sensor) ver 1.5
Regards,
Anshuman
Hi Anshuman,
I saw the patch in which changes are made for BT 656. Will it work for BT 1020 with out making any changes?
How long wil it take to release appro ipnc version 2.5?. We are in need of it for our yuv sensors.
Regards,
Mahendra kumar