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by dom
Thu Apr 06, 2017 2:34 pm
Forum: General discussion
Topic: omxplayer and .MOV files from dashcam
Replies: 4
Views: 633

Re: omxplayer and .MOV files from dashcam

Are you running raspbian jessie? If so it should be set up correctly. It should look like: [email protected]:~ $ ls -l /dev/vchiq crw-rw---- 1 root video 246, 0 Apr 5 20:17 /dev/vchiq and user pi should be in the video group: [email protected]:~ $ groups pi adm dialout cdrom sudo audio video plugdev games users inp...
by dom
Wed Apr 05, 2017 4:10 pm
Forum: General discussion
Topic: omxplayer and .MOV files from dashcam
Replies: 4
Views: 633

Re: omxplayer and .MOV files from dashcam

Do you have enough gpu_mem allocated?
(Try with gpu_mem=128 to be sure, although 64 is enough for most files).
by dom
Wed Apr 05, 2017 10:55 am
Forum: OpenMAX
Topic: is real-time decoding possible?
Replies: 23
Views: 10640

Re: is real-time decoding possible?

sbakke wrote: Tried creating a pipeline with just decoder and render (removed scheduler and clock) but nothing is ever displayed. Is there more we need to do?
hello_video_simple is a working version of what you are describing. Might be worth a look.
by dom
Fri Mar 31, 2017 11:51 am
Forum: Troubleshooting
Topic: Compiling based on a .config from a PiZero W
Replies: 3
Views: 444

Re: Compiling based on a .config from a PiZero W

Pi0W uses the same kernel as Pi0 and Pi1. The config extracted from a running kernel will exactly match the corresponding bcmrpi_defconfig. Most options in the kernel config are modules (=m) so don't cost much if you don't use them (no ram, just some sdcard storage). You could always delete them fro...
by dom
Thu Mar 30, 2017 2:21 pm
Forum: Troubleshooting
Topic: Compiling based on a .config from a PiZero W
Replies: 3
Views: 444

Re: Compiling based on a .config from a PiZero W

Why are you trying to use a 4.4 kernel config to build a 4.9 kernel when we provide a 4.9 kernel config? If you must do this route, after you have run olddefconfig, run: ARCH=arm CROSS_COMPILE=${CCPREFIX} make -j3 savedefconfig That will produce a defconfig file comparable to arch/arm/configs/bcmrpi...
by dom
Tue Mar 28, 2017 12:03 pm
Forum: Advanced users
Topic: New experimental GL driver configuration
Replies: 15
Views: 12498

Re: New experimental GL driver configuration

hanzelpeter wrote:So I looks like I need to remove overscan. Is it the culprit of a problem?
Yes, the config.txt overscan settings are not compatible with arm side vc4 driver and should be disabled.
by dom
Mon Mar 27, 2017 1:45 pm
Forum: Troubleshooting
Topic: Pi 3 and Slow, Jerky Video when streaming
Replies: 4
Views: 1424

Re: Pi 3 and Slow, Jerky Video when streaming

Playing through a browser with flash won't make use of the hardware video decoder.

Try using Kodi (e.g. with LibreELEC or OSMC) and check for addons for the content you want.
There appears to be a CBS addon: http://forum.kodi.tv/showthread.php?tid=222072
by dom
Sat Mar 25, 2017 2:34 pm
Forum: General discussion
Topic: Controlling LAN LEDs individually
Replies: 34
Views: 15590

Re: Controlling LAN LEDs individually

mcduman wrote:anybody tried this with the rpi3? I cannot get it to work.
Yes, works for me on Pi3.
I ran:

Code: Select all

tar xf llctl.tgz 
make
sudo ./llctl f0 l0 d0
and the LEDs went off.
by dom
Wed Mar 22, 2017 3:30 pm
Forum: Beginners
Topic: Chromium Auto Refresh
Replies: 7
Views: 10873

Re: Chromium Auto Refresh

There are chrome addons that can do this. Does this work?
https://chrome.google.com/webstore/deta ... njkc?hl=en
by dom
Wed Mar 22, 2017 11:50 am
Forum: General discussion
Topic: Pi3 internet browsing and Youtube performance
Replies: 29
Views: 85685

Re: Pi3 internet browsing and Youtube performance

Most apps under raspbian do not use gpu memory - only apps that support gpu acceleration. Video decode in chromium benefits from having 80M. Higher will make no difference (and if you go too high the arm may suffer when running multiple applications, or with many tabs). omxplayer can need more than ...
by dom
Mon Mar 20, 2017 11:40 am
Forum: Linux Kernel
Topic: Continued support for Linux 4.4 LTS on Raspberry Pi
Replies: 4
Views: 1500

Re: Continued support for Linux 4.4 LTS on Raspberry Pi

Just to clarify the default branch of raspberrpi/linux is 4.9. The master branch of raspberrypi/firmware (which includes pre-built linux kernel) contains 4.9 kernel. This is what you get from current rpi-update and will get from a future apt-get (when we next bump apt repo). The stable branch of ras...
by dom
Sun Mar 19, 2017 12:49 pm
Forum: General discussion
Topic: Pi3 internet browsing and Youtube performance
Replies: 29
Views: 85685

Re: Pi3 internet browsing and Youtube performance

treeHouse wrote:I have 2 rp3's, one on a 720p tv and the other on a 1080p.
The latest chromium does full screen youtube very well on the 720, but choppily on the 1080.
Increasing GPU memory (e.g. through raspi-config) does help fullscreen video decode in Chromium a little. 80M should be enough.
by dom
Sun Mar 19, 2017 11:44 am
Forum: General discussion
Topic: New Open GL Driver, Bug report thread
Replies: 94
Views: 36794

Re: New Open GL Driver, Bug report thread

ric96 wrote:So needed some clearance with the difference between the kms and fkms dtoverlay, and is it related to full kms and fake kms option recently introduced in the raspi-config?
Did you you read the linked post? It describes the differences.
Yes, fkms is referred to as fake kms in raspi-config.
by dom
Sat Mar 18, 2017 8:45 pm
Forum: General discussion
Topic: New Open GL Driver, Bug report thread
Replies: 94
Views: 36794

Re: New Open GL Driver, Bug report thread

I have the vc4-kms-v3d driver specified in config.txt. I see the login prompt and command line console on the hdmi monitor, but when I try to run omxplayer, I see the text output of the program but no video. Correct. vc4-kms-v3d will disable any gpu features that drive the display. You can use the ...
by dom
Sat Mar 18, 2017 12:59 pm
Forum: General programming discussion
Topic: Native graphical RPI/ARM disassembler / monitor
Replies: 4
Views: 883

Re: Native graphical RPI/ARM disassembler / monitor

gdb is the standard linux debugger. It will allow you to disassemble, see registers and step through code.
It is a textual tool, although the TUI (textual user interface) mode is a bit more friendly.
There are GUI tools that wrap around gdb, but I've never tried them on Pi.
by dom
Sat Mar 18, 2017 12:52 pm
Forum: Linux Kernel
Topic: Continued support for Linux 4.4 LTS on Raspberry Pi
Replies: 4
Views: 1500

Re: Continued support for Linux 4.4 LTS on Raspberry Pi

The stable branch for raspberrypi/linux will be used when there is an essential 4.4 kernel update, before 4.9 reaches stable. e.g. it has used for adding Pi0W support to 4.4 without forcing users onto 4.9 early. It could be used if there is a critical vulnerability patch. It won't be updated with th...
by dom
Wed Mar 15, 2017 1:08 pm
Forum: Beginners
Topic: Throttled 0x5000?
Replies: 5
Views: 1052

Re: Throttled 0x5000?

sora03 wrote:0x5000 = ? What is this?
0x5005 = ? This is the <4.65V right?
I suspect you have mistyped and the numbers are actually 0x50000 and 0x50005.
The first means under-voltage has previously occurred and Pi was throttled.
The second means under-voltage is currently occuring and Pi is throttled.
by dom
Tue Mar 14, 2017 4:35 pm
Forum: Troubleshooting
Topic: OSMC Problem
Replies: 2
Views: 339

Re: OSMC Problem

There is an osmc forum: https://discourse.osmc.tv/
which is probably best for questions like this.

You will need to provide more details.
I have never seen anything that I'd recognise as "open error screen ( memory full)".
A photo, or the exact wording of what you see would be useful.
by dom
Mon Mar 13, 2017 2:35 pm
Forum: General discussion
Topic: Raspberry Pi 4 possible h.265 decoder?
Replies: 63
Views: 56803

Re: Raspberry Pi 4 possible h.265 decoder?

We've looked at German dvb-t2 streams. They use 8-bit hevc with:
[email protected]
[email protected]
[email protected]

The 50fps output is a bit of a killer, so [email protected] will never be possible with Pi3.
However we have recently got [email protected] and [email protected] streams playing well on Pi3.
by dom
Mon Mar 13, 2017 12:26 pm
Forum: Beginners
Topic: Raspberry pi hdmi problem
Replies: 6
Views: 755

Re: Raspberry pi hdmi problem

Would it help to download the newest noobs version and install it on the sd card? Hope you can help me Yes. Your problem is most likely using a NOOBS version older than the Pi you are running it on. You should always use the most recent of NOOBS possible. If you bought a sdcard with NOOBS preinstal...
by dom
Sun Mar 12, 2017 6:45 pm
Forum: Beginners
Topic: Raspberry pi hdmi problem
Replies: 6
Views: 755

Re: Raspberry pi hdmi problem

Is the Pi2 a new one? (using the BCM2837 SoC)
It will need a recent NOOBS image - an old sdcard won't boot.
by dom
Fri Mar 10, 2017 8:18 pm
Forum: Graphics programming
Topic: 60hz lock on GPU?
Replies: 8
Views: 1693

Re: 60hz lock on GPU?

Have a look at eglSwapInterval.
by dom
Thu Feb 23, 2017 4:05 pm
Forum: Off topic discussion
Topic: Compatibility of RPI 3 and Odroid Screen
Replies: 10
Views: 2073

Re: Compatibility of RPI 3 and Odroid Screen

Still no video. I successfully forced the hdmi size (tested on my monitor) but the 5 ich screen is still rolling black bars. I really think its just a compatibility issue. I really appretiate youre guys help. only think i can think of is perhaps theres software out there to make these compatible Wh...
by dom
Wed Feb 22, 2017 9:42 pm
Forum: Beginners
Topic: Using a power supply under the recommandation
Replies: 9
Views: 1239

Re: Using a power supply under the recommandation

I'm running it headless but even if it's connected to a screen, no rainbow square until I run Kodi for instance so I guess there is no problem for a headless use :) If headless run: vcgencmd get_throttled If it is always zero then you have nothing to worry about. If you see non-zero then report her...
by dom
Wed Feb 22, 2017 3:02 pm
Forum: General discussion
Topic: DTS-MA passthrough
Replies: 192
Views: 93342

Re: DTS-MA passthrough

I'm trying to establish a device that will send 24Bit/48KHz PCM to a home cinema receiver and if I can prove no loss my Dad will believe me that the DTS light coming on will make no noticeable difference! Does that apply generally to pcm transfer in this fashion or specifically to the raspberry Pi?...

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