Hyperion.NG, Amlogic improvements

tavoc · 28 May 2021 12:52

You could change to use wled with a esp 8266. Then Hyperion would control the lights through WLAN. In wled you can configure actions and default lights. E.g. on disconnect show yellow.

jt6969 · 6 October 2021 08:49

Hi
Please update Hyperion.ng to Hyperion 2.0.0-alpha.11 when you get a chance
Thanks , I love this add-on

grey · 2 December 2021 07:48

I’m using Hyperion for playback using my 905x3 box and it works great. thank you for this. I wanted to know if coreelec supports video capture over usb? My idea was to get a HDMI splitter with usbb output so that the hyperion install on coreelec could serve my other sources as well. such as cable tv and PS5 and xbox. would this work?

tavoc · 2 December 2021 11:30

i am using an old Khadas Vim1 with Corelec for that.
Attached is a usb grabber and it works

grey · 2 December 2021 14:49

great to hear thanks. I will go and order the hardware. Anyone try the rullz 4k 60hz one on aliexpress? thats the one i was looking at, thanks

tomasiek · 5 December 2021 08:51

After last update to v. 19.3.109 hyperion-remote gets error when try to connect:
REMOTE : Unable to connect to host (), port (19444)
In v. 19.3.108 everything works (even after dowgrade from 109 to 108)

Paulchen-Panther · 5 December 2021 20:21

We’ll test it again.

jm1 · 9 December 2021 11:11

Hello,
on behalf of my developer friends I would like to ask for help regarding this issue.

https://forum.odroid.com/viewtopic.php?f=177&t=43593

The main question is: How did you get the grabbing to work with hyperion.ng?

Can you give us some tips about this?

Thx!

Portisch · 9 December 2021 11:25

Ubuntu does not include the Amlogic Grabber. So you have a wrong place here.
Maybe the v4l grabber will work. Best go to Hyperion forum.

https://forum.odroid.com/viewtopic.php?p=339556&sid=393f9cd6f1b7ac1b2e9f2fabd4c54e63#p339556
I have seen this “strange colors” on newer kernel and it is related to the Amlogic deinterlace driver.
But I have no idea if this is also implemented at this linux distro.

Also we do change the buffering about h265 & vp9:

github.com

CoreELEC/CoreELEC/blob/coreelec-19/projects/Amlogic-ce/packages/addons/service/hyperion.ng/source/bin/platform.sh

#!/bin/sh


if [[ -d /sys/module/amvdec_h265 && -d /sys/module/amvdec_vp9 ]];then
    case "$1" in
    start)
        echo 3 > /sys/module/amvdec_h265/parameters/double_write_mode
        echo 3 > /sys/module/amvdec_vp9/parameters/double_write_mode
    ;;
    stop)
        echo 0 > /sys/module/amvdec_h265/parameters/double_write_mode
        echo 0 > /sys/module/amvdec_vp9/parameters/double_write_mode
    ;;
    esac
fi

And the issue is about h265 videos, isn’t it?

beta · 9 December 2021 11:36

Hello,

I am the guy who opened the thread at odroid forum. I have implemented the amvideograb function into odroid 4.9 kernel (I even have a kernel running with all CoreElec media parts). However, the problem in the grabbing is as follows: I cannot grab a complete 4K picture, because I cannot allocate the required memory in one piece. There is one kernel parameter responsible for this (FORCE_MAX_ZONEORDER). It needs to be 13 in order to grab a full 4K picture. However, kernel does neither boot correctly nor do video functions work when changing the order.
I took a look at the CoreElec kernel. This leaves FORCE_MAX_ZONEORDER at the default (11) which is also not enough to grab a full 4K video. So my question is: how do you guys grab the full 4K content into a picture to be used with hyperion later on?
Any hints on that will be highly appreciated.

Thanks for reading this and eventually helping us.

I changed double_write_mode according to your script. However, this does not help.

Best regards
beta

Portisch · 9 December 2021 11:42

github.com

CoreELEC/linux-amlogic/blob/c52589d8d671150c32e21fc51fa55f4077a255e7/arch/arm64/Kconfig#L749

    
      
          	  blocks of physically contiguous memory, then you may need to
          	  increase this value.
          
          
	  This config option is actually maximum order plus one. For example,
          	  a value of 11 means that the largest free memory block is 2^10 pages.
          
          
	  We make sure that we can allocate upto a HugePage size for each configuration.
          	  Hence we have :
          		MAX_ORDER = (PMD_SHIFT - PAGE_SHIFT) + 1 => PAGE_SHIFT - 2
          
          
	  However for 4K, we choose a higher default value, 11 as opposed to 10, giving us
          	  4M allocations matching the default size used by generic code.
          
          
config UNMAP_KERNEL_AT_EL0
          	bool "Unmap kernel when running in userspace (aka \"KAISER\")" if EXPERT
          	default y
          	help
          	  Speculation attacks against some high-performance processors can
          	  be used to bypass MMU permission checks and leak kernel data to
          	  userspace. This can be defended against by unmapping the kernel
          	  when running in userspace, mapping it back in on exception entry

Here is written 11 is for 4k. We never touched this value. We only change the double_write_buffer value for the hardware decoder. When you use the software decoder this will not help.

amvideocap is obsolete already in 3.14 and got hacked into 4.9 and will be maybe dropped in 5.4.

I have only a 1080p TV and grabbing of 4k content does work fine, let me check it next week when my new TV arrive

beta · 10 December 2021 06:08

Thank you for your support, Portisch. Both, tobetter and myself we are “quite” sure that our kernel implementation is correct. However, we only can grab part of a 4K picture.
Could you please opint me to a github which hosts the hyperion.ng service you are using in CoreElec? Is it your github? This one seems to be 2 years old…
Thank you once again for supporting us.

Portisch · 10 December 2021 07:14

github.com

CoreELEC/CoreELEC/blob/coreelec-19/projects/Amlogic-ce/packages/addons/service/hyperion.ng/package.mk

# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2018-present Team CoreELEC (https://coreelec.org)

PKG_NAME="hyperion.ng"
PKG_VERSION="2.0.12"
PKG_SHA256="755771f17114611722f0b0879322b8c7cf1aa7e7ff8e8b592e544d5b26412aa6"
PKG_REV="109"
PKG_LICENSE="GPL"
PKG_SITE="https://github.com/hyperion-project/hyperion.ng"
PKG_URL="https://github.com/hyperion-project/hyperion.ng/archive/$PKG_VERSION.tar.gz"
PKG_DEPENDS_TARGET="toolchain Python3 avahi libusb qt-everywhere protobuf flatbuffers:host flatbuffers libcec"
PKG_SECTION="service"
PKG_SHORTDESC="Hyperion.NG: an AmbiLight controller"
PKG_LONGDESC="Hyperion.NG($PKG_VERSION) is an modern opensource AmbiLight implementation."

PKG_IS_ADDON="yes"
PKG_ADDON_NAME="Hyperion.NG"
PKG_ADDON_TYPE="xbmc.service"

# Setting default values

This file has been truncated. show original

beta · 10 December 2021 20:03

Thank you, Portisch. I found one major difference. While my Ubuntu implementation shows an hyperion buffer (aml) of 4k, CoreElec only shows FullHD (1920x1080). With this smaller buffer size I can always grab the complete video picture.
This leads me to the question: How can CoreElec show 4K output, while the grab is only at FHD? I guess this has something to do with buffer settings (fb0, …). Any idea? Thank you again for your help.

Portisch · 11 December 2021 09:30

It is 4k on CE:

Here are the ioctl calls to grab a frame on CE kernel with the amvideocap module:

github.com

hyperion-project/hyperion.ng/blob/master/libsrc/grabber/amlogic/AmlogicGrabber.cpp#L159

    
      
          				Info( _log, "Switch to Framebuffer capture mode");
          				_grabbingModeNotification = 2;
          				_lastError = 0;
          			}
          			rc = _fbGrabber.grabFrame(image);
          		}
          	}
          	return rc;
          }
          
          
int AmlogicGrabber::grabFrame_amvideocap(Image<ColorRgb> & image)
          {
          	int rc = 0;
          
          
	// If the device is not open, attempt to open it
          	if (_captureDev < 0)
          	{
          		if (! openDevice(_captureDev, DEFAULT_CAPTURE_DEVICE))
          		{
          			ErrorIf( _lastError != 1, _log,"Failed to open the AMLOGIC device (%d - %s):", errno, strerror(errno));
          			_lastError = 1;

beta · 22 December 2021 07:44

@Portisch: I just wanted to let you know that I made it using Ubuntu. I generated a new kernel. For this kernel I replaced all Ubuntu media and media_module files with CoreElec ones (with the exception of the HDMI driver in order to get rid of several warning messages during kernel compilation).
For FHD this is working perfectly, For UHD I only need to patch hyperion.db and replace in the framegrabber UHD resolution by FHD resolution. For ambilight this is no problem at all, because the picture itself will be down-scaled anyway.
The only small problem which remains is that video in VDR with odroid output plugin switches off and needs to by re-enabled by echo 0 > /sys/class/video/disable_video. If you habe any idea why this happens, I will be happy to listen to this idea. However, here is an easy workaround by simply activating the video (again) before feeding the video decoder. Thank you once again for your kind help.

Portisch · 22 December 2021 08:05

For such handling you need to study Kodi.
Like this:

github.com

CoreELEC/xbmc/blob/aml-4.9-19.4/xbmc/cores/VideoPlayer/DVDCodecs/Video/AMLCodec.cpp

/*
 *  Copyright (C) 2005-2018 Team Kodi
 *  This file is part of Kodi - https://kodi.tv
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 *  See LICENSES/README.md for more information.
 */


#include "AMLCodec.h"
#include "DynamicDll.h"

#include "cores/VideoPlayer/Interface/TimingConstants.h"
#include "cores/VideoPlayer/Process/ProcessInfo.h"
#include "cores/VideoPlayer/VideoRenderers/RenderFlags.h"
#include "cores/VideoPlayer/VideoRenderers/RenderManager.h"
#include "settings/AdvancedSettings.h"
#include "windowing/GraphicContext.h"
#include "settings/DisplaySettings.h"
#include "settings/MediaSettings.h"

This file has been truncated. show original

And this:

github.com

CoreELEC/xbmc/blob/aml-4.9-19.4/xbmc/utils/AMLUtils.cpp

/*
 *  Copyright (C) 2011-2018 Team Kodi
 *  This file is part of Kodi - https://kodi.tv
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 *  See LICENSES/README.md for more information.
 */

#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string>

#include "AMLUtils.h"
#include "utils/CPUInfo.h"
#include "utils/log.h"
#include "utils/StringUtils.h"
#include "windowing/GraphicContext.h"

This file has been truncated. show original

beta · 22 December 2021 09:00

I found it. Thank you!

beta · 27 January 2022 11:52

@Portisch : May I please ask you another favor: Could you please let me know what was changed in the CE kernel to get rid of the video slowdowns. I also experience with my kernel video slowdowns after a while and I guess this is related. You talked about an error in the decoder source, if I remember correctly. Maybe you can show me the commit… Thank you once again!

Portisch · 27 January 2022 12:12

in long: Slow down of Hyperion.ng
in short: the user frame request interfered with video thread interrupt function → slow down sometimes.