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by GrubbyHalo
Thu Jun 20, 2019 12:39 pm
Forum: Camera board
Topic: Can image effects only be applied to the camera component ?
Replies: 4
Views: 336

Re: Can image effects only be applied to the camera component ?

HTML docs for all the IL / MMAL components are in the firmware repo - https://github.com/raspberrypi/firmware/tree/master/documentation/ilcomponents. Someone is directly hosting a version of it at http://www.jvcref.com/files/PI/documentation/ilcomponents/ to save you having to download it and point...
by GrubbyHalo
Thu Jun 20, 2019 12:25 pm
Forum: Camera board
Topic: Can image effects only be applied to the camera component ?
Replies: 4
Views: 336

Re: Can image effects only be applied to the camera component ?

They are supported by the camera and image_fx components. If you wish to apply them to something other than the camera, create a MMAL (or IL if you must) pipeline with image_fx in, and you can then apply the effects. That's great! I never knew there was an image_fx component. There doesn't seems to...
by GrubbyHalo
Thu Jun 20, 2019 10:44 am
Forum: Camera board
Topic: Can image effects only be applied to the camera component ?
Replies: 4
Views: 336

Can image effects only be applied to the camera component ?

I would like to take advantage of some of the hardware accelerated effects (e.g. blur). Do these effects only apply to the camera component or can they be used by a resizer component for example ?
by GrubbyHalo
Fri Nov 02, 2018 12:53 pm
Forum: Device Tree
Topic: Adding LAN 7850 driver to older kernel
Replies: 2
Views: 3442

Re: Adding LAN 7850 driver to older kernel

rln wrote:
Fri Nov 02, 2018 12:03 pm
I'm also using kernel 4.4 and has just gotten it to run on Pi 3B+. It's likely the lan78xx driver you want, because that's the one needed for 3B+ wired Ethernet. Have a look in my Git repo where you can find backport patches.
http://www.nard.se/download/
Thank you! I will check it out.
by GrubbyHalo
Thu Nov 01, 2018 12:58 pm
Forum: Device Tree
Topic: Adding LAN 7850 driver to older kernel
Replies: 2
Views: 3442

Adding LAN 7850 driver to older kernel

i have a situation where i had an old version raspbian sdcard with version 4.4.11 of the kernel on it. This card was used in a model 3b raspberry pi. I subsequently upgraded the firmware (but not the drivers and kernel) on the sdcard to run on the pi 3b+. Everything works except the ethernet. The pi...
by GrubbyHalo
Fri Aug 12, 2016 7:22 am
Forum: General programming discussion
Topic: Enable OpenCV neon support on Pi2
Replies: 3
Views: 2197

Re: Enable OpenCV neon support on Pi2

Compiling opencv with neon support definitely improves performance. You might want to enable TBB as this also improves performance on multicore devices for some opencv functions.. AS for your question on why the kernel doesn't need to be neon enabled, its because the neon instructions are just that....
by GrubbyHalo
Sun Mar 06, 2016 1:35 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Maximum SPI Devices
Replies: 15
Views: 5358

Re: Maximum SPI Devices

msperl wrote:Assuming you use the Linux kernel:
If you add

Code: Select all

gpio-cs = <&gpio 8>, <&gpio 7>,<&gpio 22>;
to the devicetree, then gpios 8, 7 and 22 will be used for CS 0,1 and 2. Add more until satisfied...
Hi Martin. This is what i was looking for. Thank you
by GrubbyHalo
Sat Mar 05, 2016 1:04 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Maximum SPI Devices
Replies: 15
Views: 5358

Maximum SPI Devices

There were rumors of the standard SPI driver being updated to support more than the current limit of two via the use of arbitrary GPIO pins used for CS. Does anyone know if progress has been made ?

Cheers
by GrubbyHalo
Mon Nov 24, 2014 10:06 am
Forum: Camera board
Topic: H264 Encoder
Replies: 6
Views: 1217

Re: H264 Encoder

I think that should be possible using only MMAL. Can you check the buffers being sent to the encoder to ensure they actually have valid data in them? If the output plays back but is black, you have a valid H264 stream, so quite a lot is actually working. You are an absolute genius! I was copying my...
by GrubbyHalo
Mon Nov 24, 2014 9:43 am
Forum: Camera board
Topic: H264 Encoder
Replies: 6
Views: 1217

Re: H264 Encoder

I think that should be possible using only MMAL. Can you check the buffers being sent to the encoder to ensure they actually have valid data in them? If the output plays back but is black, you have a valid H264 stream, so quite a lot is actually working. You are an absolute genius! I was copying my...
by GrubbyHalo
Mon Nov 24, 2014 8:58 am
Forum: Camera board
Topic: H264 Encoder
Replies: 6
Views: 1217

Re: H264 Encoder

It seems the only way to do this is by using openmax. Is this correct ?
by GrubbyHalo
Mon Nov 24, 2014 8:07 am
Forum: Camera board
Topic: H264 Encoder
Replies: 6
Views: 1217

H264 Encoder

Hi All I have an application where i capture video from the camera, do some operations on the frames in opencv, add some overlays and then display the modified camera footage. I would now like to stream this video. So i have setup an encoder component "vc.ril.video_encode", a "vc.ril.resize" compone...
by GrubbyHalo
Mon Aug 18, 2014 10:46 am
Forum: Off topic discussion
Topic: Broadcom exiting mobile market and future of RPI
Replies: 8
Views: 2929

Re: Broadcom exiting mobile market and future of RPI

It's more like 3000 engineers.... Brcm are to continue supporting the Raspberry Pi and are forming a team specifically for it I believe. I think there is at least 5 years of solidity there. I'm wondering what to do, I'll probably take the redundancy and look elsewhere (The financially sensible appr...
by GrubbyHalo
Thu Aug 14, 2014 6:26 am
Forum: Camera board
Topic: mmal port callbacks on JPEG component issue
Replies: 25
Views: 9042

Re: mmal port callbacks on JPEG component issue

Any of the broadcom gurus or MMAL specialist have an idea as to the above issue with the encoder eventually chocking ?
by GrubbyHalo
Tue Aug 12, 2014 7:35 am
Forum: Camera board
Topic: mmal port callbacks on JPEG component issue
Replies: 25
Views: 9042

Re: mmal port callbacks on JPEG component issue

andies wrote:
GrubbyHalo wrote:I am having the exact same issue.
I am surprised. I had the problem and it disappeared after the firmware update. Now it seems to appear with the new firmware...
I can see the frame rate dropping slightly throughout the 30 odd seconds it takes and then suddenly nothing.
by GrubbyHalo
Mon Aug 11, 2014 11:11 pm
Forum: Camera board
Topic: mmal port callbacks on JPEG component issue
Replies: 25
Views: 9042

Re: mmal port callbacks on JPEG component issue

I am having the exact same issue. I have the same setup except that i have a h264 encoder as opposed to the jpeg encoder. Everything works for about 30 seconds and then i stop getting callbacks. I have the lastest firmware.
by GrubbyHalo
Fri Aug 08, 2014 2:04 pm
Forum: Camera board
Topic: Splitter Madness
Replies: 0
Views: 338

Splitter Madness

I've wasted a whole day on this. Maybe someone can give me some insights I created a splitter componet that gets fed from the camera and sends one output to an encoder and the other to the application. Everytime i tried to setup the format of the output ports on the splitter i kept on getting error ...
by GrubbyHalo
Thu Aug 07, 2014 8:35 pm
Forum: Off topic discussion
Topic: Broadcom exiting mobile market and future of RPI
Replies: 8
Views: 2929

Re: Broadcom exiting mobile market and future of RPI

Hi I was posting in another forum today and noticed that some of the broadcom engineers are anticipating losing their jobs. After a bit of googling it seems as though broadcom are cutting 2500 jobs as a consequence of exiting the cellular baseband market. What does this mean for the future of Raspb...
by GrubbyHalo
Thu Aug 07, 2014 7:42 pm
Forum: Off topic discussion
Topic: Broadcom exiting mobile market and future of RPI
Replies: 8
Views: 2929

Re: Broadcom exiting mobile market and future of RPI

It could mean that lots of talented people who know the hardware inside out are available to work on the pi. It could also mean that eventually they might have to consider looking for another SoC, but I don't think it will come to that any time soon. Hmmmm i wonder if this is the reason that the B+...
by GrubbyHalo
Thu Aug 07, 2014 6:38 pm
Forum: Off topic discussion
Topic: Broadcom exiting mobile market and future of RPI
Replies: 8
Views: 2929

Broadcom exiting mobile market and future of RPI

Hi I was posting in another forum today and noticed that some of the broadcom engineers are anticipating losing their jobs. After a bit of googling it seems as though broadcom are cutting 2500 jobs as a consequence of exiting the cellular baseband market. What does this mean for the future of Raspbe...
by GrubbyHalo
Thu Aug 07, 2014 1:32 pm
Forum: Camera board
Topic: callbacks on connected component ports
Replies: 7
Views: 1087

Re: callbacks on connected component ports

Thanks 6by9. I'll try that out. Just a side question. As far as the encoded output goes, will i receive an encoded frame for every raw camera frame ? You should do, along with one set of motion vectors if that is enabled. Please note that there is no guarantee that an entire frame fits in one buffe...
by GrubbyHalo
Thu Aug 07, 2014 12:39 pm
Forum: Camera board
Topic: callbacks on connected component ports
Replies: 7
Views: 1087

Re: callbacks on connected component ports

Thanks 6by9. I'll try that out. Just a side question. As far as the encoded output goes, will i receive an encoded frame for every raw camera frame ?
by GrubbyHalo
Thu Aug 07, 2014 12:09 pm
Forum: Camera board
Topic: SIGSEGV in mmal_port_send_buffer
Replies: 2
Views: 760

Re: SIGSEGV in mmal_port_send_buffer

Did you manage to sort this problem out ? if so what was the solution ?
by GrubbyHalo
Thu Aug 07, 2014 9:34 am
Forum: Camera board
Topic: callbacks on connected component ports
Replies: 7
Views: 1087

Re: callbacks on connected component ports

There are 2 options: 1. use a splitter component. The camera should feed into the splitter, then one output of the splitter into the encoder and anoter other output into your callback. 2. Using a callback on the camera output in which you manually forward the buffer to the encoder input. In this ca...
by GrubbyHalo
Thu Aug 07, 2014 9:07 am
Forum: Camera board
Topic: callbacks on connected component ports
Replies: 7
Views: 1087

callbacks on connected component ports

Hi I have an application where i am trying to feed output from the camera output port into the default video encoder. Specifically i need to capture the raw image data from the camera as well as the encoded output.. actually its the codec side info (inline motion vectors). So i have setup setup the ...

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