(5th Jul, 2019 05:56 AM)Exnor Wrote:  I'm posting this from mobile so sorry for any mistakes or bad formatting.

So finally got my PI 3B+ two days ago, installed the latest image available (from the download section, that i assume is a stable release) and it started perfectly... I made ZERO changes in the config for the exception of configuring the WiFi and adding my local NAS, and when i tried to play a movie puff the unit got a black screen and no longer responded to SSH requests or the attached keyboard.

So long story short I've tried a lot of things but in the end it was MMAL hardware acceleration being on by default that was causing the crashes... I've turned it off and OMX ON and now it works perfectly.... Even added add-ons now.
Except that isn't MMAL hardware acceleration supposed to work?

Quote:Any ideas? I've run stress tests, multiple PSUs with 3 Amps, tested for undervoltage, etc, etc and i cant find any indication of what is wrong.

I can upload logs latter if needed, just tell me witch ones.

Quote:Thank you.

(6th Jul, 2019 03:04 AM)Nachteule Wrote:  

(5th Jul, 2019 05:56 AM)Exnor Wrote:  I'm posting this from mobile so sorry for any mistakes or bad formatting.

So finally got my PI 3B+ two days ago, installed the latest image available (from the download section, that i assume is a stable release) and it started perfectly... I made ZERO changes in the config for the exception of configuring the WiFi and adding my local NAS, and when i tried to play a movie puff the unit got a black screen and no longer responded to SSH requests or the attached keyboard.

So long story short I've tried a lot of things but in the end it was MMAL hardware acceleration being on by default that was causing the crashes... I've turned it off and OMX ON and now it works perfectly.... Even added add-ons now.
Except that isn't MMAL hardware acceleration supposed to work?

MMAL acceleration is working for many years w/o any issue

Quote:Any ideas? I've run stress tests, multiple PSUs with 3 Amps, tested for undervoltage, etc, etc and i cant find any indication of what is wrong.

I can upload logs latter if needed, just tell me witch ones.

I don't think that logs would help, because it seems that your Pi is freezing completely, or does your Pi still respond to a ping request?

Could you share a sample video so I could check of this crash happens here also?

Quote:Thank you.

You're welcome

(6th Jul, 2019 07:10 AM)Nachteule Wrote:  Hmmm, that's weird

Maybe you have to setup whitelist of resolution/refresh rate in Settings->System->Display.

Disabling that option does not make sense, you won't get smooth playing of videos. I've that option always on!

(7th Jul, 2019 12:27 AM)Exnor Wrote:  

(6th Jul, 2019 07:10 AM)Nachteule Wrote:  Hmmm, that's weird

Maybe you have to setup whitelist of resolution/refresh rate in Settings->System->Display.

Disabling that option does not make sense, you won't get smooth playing of videos. I've that option always on!

Very weird... I would expect losing image but not a full crash ...

Anyway i only care for "true cinema" frame rate on my Blu-ray's (24fps) and for those i use an LG Blu-ray player.

For other sources I've always used 60fps output... So for now its not a problem.

Off topic: I've tested a 1080p HEVC movie rip and it works better than on my desktop :o. Its looks perfect. What kind of magic is going on here?

(7th Jul, 2019 02:35 AM)Nachteule Wrote:  

(7th Jul, 2019 12:27 AM)Exnor Wrote:  

(6th Jul, 2019 07:10 AM)Nachteule Wrote:  Hmmm, that's weird

Maybe you have to setup whitelist of resolution/refresh rate in Settings->System->Display.

Disabling that option does not make sense, you won't get smooth playing of videos. I've that option always on!

Very weird... I would expect losing image but not a full crash ...

Anyway i only care for "true cinema" frame rate on my Blu-ray's (24fps) and for those i use an LG Blu-ray player.

For other sources I've always used 60fps output... So for now its not a problem.

Off topic: I've tested a 1080p HEVC movie rip and it works better than on my desktop :o. Its looks perfect. What kind of magic is going on here?

Yep, 1080p HEVC support was usable starting with Kodi Krypton and was optimized for Leia. A lot of inline assembly and cooperation with MMAL acelleration made it possible to play 1080p HEVC smoothy

(7th Jul, 2019 08:39 AM)Exnor Wrote:  You are a genius mate

How did you manage to get better performance on quad core ARMv7 @ 1.4GHz (don't know how many IPC and MIPS on a Cortex A53 and i noticed you are not using the ARMv8 advantages this cores have or am i wrong? This is still a 32 bit build right?) that i have on a x86-64 quad core AMD clocked @ 3.2 GHz ( 4 SMTs also) ? Plus the VideoCore IV is a joke compared to my desktop GPU and still...

Quote:Kudos. I would love to know and understand how you manage this.

Quote:And a big thank you for all the work

(7th Jul, 2019 07:25 PM)Nachteule Wrote:  I'm not the developer who did this. I just picked necessary commits and merged them in our source tree. This patch is extremely efficient, so even a RPi2 can play a lot of 1080p HEVC videos smoothliy

Quote:Kudos. I would love to know and understand how you manage this.

Here you can find the main patch. As you can see, the patch for ffmpeg is so big that github does not display it on the webui

Quote:And a big thank you for all the work

(9th Jul, 2019 12:53 AM)Exnor Wrote:  Is it possible to apply this method to an x86 machine?

(9th Jul, 2019 03:42 AM)Nachteule Wrote:  

(9th Jul, 2019 12:53 AM)Exnor Wrote:  Is it possible to apply this method to an x86 machine?

It has already been done: The magic word is vaapi support for ffmpeg. Of course, your CPU/GPU/VPU/APU must have the decoder builtin