Lindenis Wiki - User contributions [en]

Lindenis V536

2020-01-20T01:22:38Z

Xiaoshujun: /* Lindlive */

== Key Features ==
=== Processor core ===
*Dual-Core Cortex A7@1.2GHz
*Neon acceleration, integrated FPU

=== Video Encoding/Decoding Performance ===
*H.264 BP/MP/HP, H.265 Main Profile encoding
*I/P/Dual P frame H.264/H.265 encoding
*MJPEG/JPEG baseline encoding
*Real-time multi-stream H.264/H.265 encoding capability:
**- 3840x2160@30fps+720p@30fps encoding
**- 3840x2160@30fps decoding
*Maximum 8192x8192 resolution for JPEG encoding/decoding
*CBR, VBR modes
*Encoding of eight ROIs

=== Graphics Processing ===
*Supports Lens distortion correction, fisheye and wide angle correction
*Supports 90°、180°、270° picture rotation

=== Professional Image Effects ===
*Maximum performance is 4224x3168@30fps
*Adjustable 3A functions (AE, AWB and AF)
*Supports 2F WDR and Local Tone mapping,supporting highlight suppression and backlight compensation
*Supports bad pixel correction, Lens shading correction
*Supports multi-level 3D denoising, remove motion smear and color noise
*Supports color adjustment, color enhancement
*Supports image dynamic contrast enhance and sharpness enhance
*Supports 4 channels of scaling output from 1/8x to 1x
*OSD overlaying of eight regions before encoding
*Supports image mirroring and flipping

=== Various interfaces ===
*Supports MIPI-CSI2\HiSPi\Sub-LVDS
*Supports BT1120 input/output
*Supports Line-in/Line-out
*Supports Dual-channel differential MIC inputs
*Supports WiFi 802.11ac / BT4.2 (option)

=== Software Support ===
*Linux-4.9

== Target Applications ==
*SDV
*Smart IPC
*Smart Camera
Or you can use it to build:
*A computer
*A streaming server

== Accessories Step-by-Step Guides ==

=== Power Supply ===

* [http://files.lindeni.org/lindenis-v5/accessories/Power-Supply-Brief.pdf 5V 2A Power Supply]

=== HDMI Cable ===

* [http://files.lindeni.org/lindenis-v5/accessories/HDMI-Cable-Brief.pdf 4K HDMI Cable]

=== Camera module ===

* [http://files.lindeni.org/lindenis-v5/accessories/Camera-Module-Brief.pdf 4K Camera Module brief]

=== LCD ===

* [http://files.lindeni.org/lindenis-v5/accessories/LCD-with-CTP-Brief.pdf 5" 720P LCD with CTP brief]

=== Flash module ===

* [http://files.lindeni.org/lindenis-v5/accessories/eMMC-Module-Brief.pdf 8GB eMMC Module brief]

=== WiFi and Bluetooth module ===

* [http://files.lindeni.org/lindenis-v5/accessories/WiFi-Module-Brief.pdf WiFi 802.11ac / BT4.2 Module brief]

== Hardware Specification ==

=== Board Features ===

==== Video Out ====

* HDMI 1.4 Type A, up to 4K@30FPS
* MIPI-DSI, 4 lanes, up to 1080P
* LCD interface

==== Video In ====

* 1 x MIPI-CSI2 - Camera interface, 4 lanes per channel

==== Audio ====
* 3.5mm Line in / out
* 1 x mic
* 1 x dmic

==== Network ====
* 10/100/1000Mbps Ethernet
* WiFi with Bluetooth (optional)

==== Storage ====
* MicroSD Card bootable, support SDHC and SDXC, storage up to 256GB

==== Expansion Ports ====
* Board to Board connector - Flash module interface
* Wi-Fi/BT Module Header - SDIO 3.0 and UART, pitch 2.0mm
* 2x10 pins "Power Supply" GPIO Header: vbat, aldo1, bldo1, aldo3
* 4 pins GPIO Header: TWI1
* 2x7 pins "I2S" GPIO Header
* 3 pins GPIO Header: PH4, PH10, GND
* 3 pins GPIO Header: 1xADC
* 4 pins GPIO Header: S-TWI
* VBAT: Battery connector
* Storage: Bootable MicroSD card
* Video out: HDMI 1.4, 4 lanes MIPI-DSI
* Video in: 1 x DVP
* Audio: 3.5mm Line in / out, 1 x mic
* Network: 10/100/1000Mbps Ethernet
* USB: 1 x Micro USB, 2 x USB 2.0

=== Board Information ===
* Board Dimensions: 130mm x 85mm
* Input Power: 5V@2A micro USB connector, 3.7V Li-Ion battery connector
* [http://files.lindeni.org/lindenis-v5/datasheets/lindenis-v536-DIBAN_20191013-map.pdf Lindenis V536 PCB place map]

== Datasheet ==
* [http://files.lindeni.org/lindenis-v5/datasheets/V536-brief-en.pdf Allwinner V536 SOC Brief]
* [http://files.lindeni.org/lindenis-v5/datasheets/OP03-JS1158%20FORESEE_eMMC_NCEMASD9-08G%20SPEC%20A0%2020150701.pdf Foresee eMMC Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/AP6255%20IND%20datasheet_V1.1_12042017.pdf AP6255 Module Spec Sheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/RTL8211F-CG-RealtekMicroelectronics.pdf Ethernet PHY Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/LX50HDI4002-V0.pdf LCD Module Specification]
* [http://files.lindeni.org/lindenis-v5/datasheets/GT911%20Capacitive%20Touch%20Controller%20Datasheet.pdf GOODiX GT911 5-Point Capacitive Touch Controller Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/GL850G%20Datasheet_128.pdf USB 2.0 Hub Controller]

== SDK ==

=== Overview ===

==== Features ====
*Linux kernel 4.9 (official version)
* U-Boot 2014.07
* ARM GCC based cross toolchain
* Integrated build system

==== Main Components ====
==== Layout ====
<pre>
├── build
├── config
├── Config.in
├── dl
├── docs
├── lichee
├── logs
├── Makefile
├── out
├── package
├── prebuilt
├── rules.mk
├── scripts
├── softwinner
├── target
├── toolchain
└── tools
</pre>

=== Download and Build ===
==== System requirements ====
Listed below are the recommended requirements for downloading and building the SDK:
* CPU: x86_64 or better family processor
* Memory: 8GB or higher
* Disk: 10GB free hard disk space
* OS: Ubuntu 14.04 (tested) or higher
* Network: internet connection
==== Linux host setup ====

Ubuntu 14.04

''HINT: later version should also work.''

'''Install prerequisites'''

<pre>
$ sudo dpkg --add-architecture i386
$ sudo apt-get update
$ sudo apt-get install git git-core u-boot-tools qemu qemu-user-static debootstrap lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386 gawk
</pre>

* dpkg --add-architecture i386: support 32bit architecture
* apt-get update: retrieve new lists of packages
* git git-core: manage source code
* u-boot-tools: build kernel image
* qemu qemu-user-static: emulator for arm on host CPU
* debootstrap: for installing a Debian base system
* lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386: for running 32bit tools
* gawk: GNU Awk

'''Sudo without password'''

<pre>
$ sudo visudo
</pre>

Add this line at the end (change “tom” to your username):
<pre>tom ALL=(ALL) NOPASSWD: ALL</pre>
Ctrl-X to leave, save your changes, and you're done!

==== Downloading ====
The SDK is available on [https://github.com/lindenis-org github].

We use Repo manage Git repositories. Clone Repo from [https://android.googlesource.com/tools/repo android Git repositories] or other mirrors and install it.
 Chinese developers can install Repo follow these steps:
<pre>
$ git clone http://mirrors.ustc.edu.cn/aosp/git-repo.git ~/.bin/repo
$ echo "export PATH=~/.bin/repo:$PATH" >> ~/.bashrc
$ source ~/.bashrc
</pre>

==== Building ====
===== Setup env =====
*For Lindenis V536 SBC:
*For Lindenis V536 SOM:

===== Build source =====
* Build kernel and rootfs
If you are the first time downloaded the SDK and have not built the SDK before, run the below two commands, then exit and save the configuration at first.
<pre>
$ make menuconfig
</pre>
<pre>
$ make kernel_menuconfig
</pre>
Then make it and wait ...
<pre>
$ make -j8 V=s
</pre>

===== Build image =====
<pre>
$ pack
</pre>

==== Installation ====

== OS ==
=== Overview ===
Lindenis Video OS is the recommended operating system for normal use on Lindenis V536 series boards. Lindenis Video OS is maintained by [http://www.lindeni.com/ Lindenis Tech. Ltd.]. The SDK is hosted on [https://github.com/lindenis-org GitHub].
===== Applications =====
[[File:LindenisVideoOS.png|500px|thumb|Lindenis Video OS Architecture]]
* Lindlive: a low-laternce A/V streaming application powered by Lindenis.
* Lindplayer: a meida player application powered Lindenis.
* Lindcamera: a camera application (supported preview, snapshot and recording) powered by Lindenis.
* ... ...

===== Framewrok =====

* FFindeni: a multimedia framework specialized for low-latency A/V processing built by Lindenis.
* CedarX: a Allwinner official multimedia decoding framework.
* [http://www.minigui.org/ MiniGUI]: a tiny and efficiency open source GUI framework.
* ... ...

===== Libraries =====

* Runtime Libraries: the system basic libraries like libc and so on.
* Libavwrapper: a Lindenis-built library abstracted the hardware operation of the A/V processing.
* [http://ffmpeg.org/ FFmpeg]: an open source software library for recording, converting and streaming audio and video.
* [http://live555.com/ Live555]: an open source software library for streaming audio and video.
* ... ...

===== Linux Kernel =====

* Official version: 4.9

=== System Setup ===

===== Uart =====

===== Camera =====

===== Display =====

===== TouchPanel =====

===== Wifi =====
*sys_config.fex should config as follow:
<pre>
[wlan]
wlan_used = 1
wlan_busnum = 1
;wlan_usbnum = 3
wlan_power = "vcc33-wifi"
wlan_io_regulator = "vcc-pg"
;wlan_en = port:PG11<1><default><default><0>
wlan_regon = port:PG11<1><default><default><0>
wlan_hostwake = port:PL05<6><default><default><0>
</pre>
*make sure CONFIG_BCMDHD is configured when make kernel_menuconfig
<pre>
CONFIG_BCMDHD = m
</pre>
*make sure PACKAGE_ap6255-firmware is configured when make menuconfig
<pre>
PACKAGE_ap6255-firmware = y
</pre>

===== Bluetooth =====

===== Ethernet =====
*sys_config.fex should configured as follow:
<pre>
[gmac0]
gmac0_used = 1
phy-mode = "rgmii"
gmac_rxd3 = port:PE00<3><default><default><default>
gmac_rxd2 = port:PE01<3><default><default><default>
gmac_rxd1 = port:PE02<3><default><default><default>
gmac_rxd0 = port:PE03<3><default><default><default>
gmac_rxck = port:PE04<3><default><default><default>
gmac_rxctl = port:PE05<3><default><default><default>
gmac_clkin = port:PE06<3><default><default><default>
gmac_txd3 = port:PE07<3><default><3><default>
gmac_txd2 = port:PE08<3><default><3><default>
gmac_txd1 = port:PE09<3><default><3><default>
gmac_txd0 = port:PE10<3><default><3><default>
gmac_txck = port:PE11<3><default><3><default>
gmac_txctl = port:PE12<3><default><3><default>
gmac_mdc = port:PE13<3><default><3><default>
gmac_mdio = port:PE14<3><default><3><default>
gmac_ephy25m = port:PE15<3><default><default><default>
phy-rst = port:PE21<1><default><default><0>
gmac-power0 = "vcc-ephy"
gmac-power1 = ""
gmac-power2 = ""
tx-delay = 7
rx-delay = 31
use_ephy25m = 1
</pre>
*make sure CONFIG_SUNXI_GMAC is configured when make kernel_menuconfig
<pre>
CONFIG_SUNXI_GMAC = y
</pre>

===== Keypad =====

===== Audio =====
====== audiocodec ======
*sys_config.fex should configured as follow:
<pre>
[sndcodec]
sndcodec_used = 0x1

[i2s]
i2s_used = 0x1

[codec]
codec_used = 0x1
lineoutvol = 0x1f
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
pa_ctl_level = 0x1
pa_msleep_time = 0xa0
gpio-spk = port:PH10<1><1><default><default>
</pre>

====== i2s ======
*sys_config.fex should configured as follow, and the param should configured accord your device need:
:'''if you i2s1 is used'''
<pre>
[snddaudo0]
snddaudio0_used = 1

[daudio0]
daudio0_used = 1
daudio_master = 4
audio_format = 4
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 0
tx_data_mode = 0
rx_data_mode = 0
</pre>

:'''if you i2s2 is used'''
<pre>
[snddaudo2]
snddaudio2_used = 1

[daudio2]
daudio2_used = 1
daudio_master = 4
audio_format = 1
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 32
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 0
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0
</pre>
*make sure CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO configured when make kernel_menuconfig
<pre>
CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO = y
</pre>

=== Application Demo ===
The application demos powered by Lindenis.

===== Lindlive =====
lindlive is a high performance low latency live streaming library.
lindlive integrate some useful function modules, such as audio/video capture, encoding and streaming protocol.
So developers can easily implement a live streaming server based on lindenis board.

There are two samples app using lindlive, one is sample_mppsrc_2_livesink and the other is sample_mppsrc_2_ffsink.
The sample source code is located in SDK.

!!! It is strongly recommended to use lindplayer with '-live' as the client of the lindlive.
It will be lower latency.

usage:
sample_mppsrc_2_livesink -i [ip] -p [port] -n [name]
-i [ip] is the ip address of the server. If it is not set, the 'ip' default is local ethernet or wifi ip address.
-p [port] is the port of the server. If it is not set, the 'port' default is rtsp port 8554.
-n [name] is the name of live streaming. If it is not set, the 'name' default is 'live'.
All of the arguments are optional.
If sample_mppsrc_2_livesink is correctly running, the server url is 'rtsp://[ip]:[port]/[name]'
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.

sample_mppsrc_2_ffsink -t [type] -u [url]
-t [type]: the muxer type, can be 'mpegts/mp4/rtp/rtp_mpegts/rtsp/rtmp'
-u [url] : sink to url, like: '/tmp/out.mp4' or 'rtp://192.168.1.100:12345'
Example 1: sink as a live streaming.
sample_mppsrc_2_ffsink -t rtp_mpegts -u rtp://192.168.3.118:12345
sample_mppsrc_2_ffsink -t rtp -u rtp://192.168.3.118:12342/test
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.
Example 2: save as a local file.
sample_mppsrc_2_ffsink -t mp4 -u /tmp/out.mp4
sample_mppsrc_2_ffsink -t mpegts -u /tmp/out.ts

===== Lindplayer =====
lindplayer is a high performance media player that can run on lindenis board.
It supports upto 4K@30fps H.264/H.265 video decoder.
It can play a local media file or a media stream from internet.

usage:
lindplayer -u [url] <options>
-u [url] is the media path to be played.
<options> use -live to indicate this is a live streaming.
such as:
lindplayer -u ./movie.ts
or lindplayer -u http://192.168.1.102/test
or lindplayer -u rtsp://192.168.1.102/test -live

===== Lindcamera =====

Lindenis V536

2020-01-20T01:21:09Z

Xiaoshujun: /* Lindplayer */

== Key Features ==
=== Processor core ===
*Dual-Core Cortex A7@1.2GHz
*Neon acceleration, integrated FPU

=== Video Encoding/Decoding Performance ===
*H.264 BP/MP/HP, H.265 Main Profile encoding
*I/P/Dual P frame H.264/H.265 encoding
*MJPEG/JPEG baseline encoding
*Real-time multi-stream H.264/H.265 encoding capability:
**- 3840x2160@30fps+720p@30fps encoding
**- 3840x2160@30fps decoding
*Maximum 8192x8192 resolution for JPEG encoding/decoding
*CBR, VBR modes
*Encoding of eight ROIs

=== Graphics Processing ===
*Supports Lens distortion correction, fisheye and wide angle correction
*Supports 90°、180°、270° picture rotation

=== Professional Image Effects ===
*Maximum performance is 4224x3168@30fps
*Adjustable 3A functions (AE, AWB and AF)
*Supports 2F WDR and Local Tone mapping,supporting highlight suppression and backlight compensation
*Supports bad pixel correction, Lens shading correction
*Supports multi-level 3D denoising, remove motion smear and color noise
*Supports color adjustment, color enhancement
*Supports image dynamic contrast enhance and sharpness enhance
*Supports 4 channels of scaling output from 1/8x to 1x
*OSD overlaying of eight regions before encoding
*Supports image mirroring and flipping

=== Various interfaces ===
*Supports MIPI-CSI2\HiSPi\Sub-LVDS
*Supports BT1120 input/output
*Supports Line-in/Line-out
*Supports Dual-channel differential MIC inputs
*Supports WiFi 802.11ac / BT4.2 (option)

=== Software Support ===
*Linux-4.9

== Target Applications ==
*SDV
*Smart IPC
*Smart Camera
Or you can use it to build:
*A computer
*A streaming server

== Accessories Step-by-Step Guides ==

=== Power Supply ===

* [http://files.lindeni.org/lindenis-v5/accessories/Power-Supply-Brief.pdf 5V 2A Power Supply]

=== HDMI Cable ===

* [http://files.lindeni.org/lindenis-v5/accessories/HDMI-Cable-Brief.pdf 4K HDMI Cable]

=== Camera module ===

* [http://files.lindeni.org/lindenis-v5/accessories/Camera-Module-Brief.pdf 4K Camera Module brief]

=== LCD ===

* [http://files.lindeni.org/lindenis-v5/accessories/LCD-with-CTP-Brief.pdf 5" 720P LCD with CTP brief]

=== Flash module ===

* [http://files.lindeni.org/lindenis-v5/accessories/eMMC-Module-Brief.pdf 8GB eMMC Module brief]

=== WiFi and Bluetooth module ===

* [http://files.lindeni.org/lindenis-v5/accessories/WiFi-Module-Brief.pdf WiFi 802.11ac / BT4.2 Module brief]

== Hardware Specification ==

=== Board Features ===

==== Video Out ====

* HDMI 1.4 Type A, up to 4K@30FPS
* MIPI-DSI, 4 lanes, up to 1080P
* LCD interface

==== Video In ====

* 1 x MIPI-CSI2 - Camera interface, 4 lanes per channel

==== Audio ====
* 3.5mm Line in / out
* 1 x mic
* 1 x dmic

==== Network ====
* 10/100/1000Mbps Ethernet
* WiFi with Bluetooth (optional)

==== Storage ====
* MicroSD Card bootable, support SDHC and SDXC, storage up to 256GB

==== Expansion Ports ====
* Board to Board connector - Flash module interface
* Wi-Fi/BT Module Header - SDIO 3.0 and UART, pitch 2.0mm
* 2x10 pins "Power Supply" GPIO Header: vbat, aldo1, bldo1, aldo3
* 4 pins GPIO Header: TWI1
* 2x7 pins "I2S" GPIO Header
* 3 pins GPIO Header: PH4, PH10, GND
* 3 pins GPIO Header: 1xADC
* 4 pins GPIO Header: S-TWI
* VBAT: Battery connector
* Storage: Bootable MicroSD card
* Video out: HDMI 1.4, 4 lanes MIPI-DSI
* Video in: 1 x DVP
* Audio: 3.5mm Line in / out, 1 x mic
* Network: 10/100/1000Mbps Ethernet
* USB: 1 x Micro USB, 2 x USB 2.0

=== Board Information ===
* Board Dimensions: 130mm x 85mm
* Input Power: 5V@2A micro USB connector, 3.7V Li-Ion battery connector
* [http://files.lindeni.org/lindenis-v5/datasheets/lindenis-v536-DIBAN_20191013-map.pdf Lindenis V536 PCB place map]

== Datasheet ==
* [http://files.lindeni.org/lindenis-v5/datasheets/V536-brief-en.pdf Allwinner V536 SOC Brief]
* [http://files.lindeni.org/lindenis-v5/datasheets/OP03-JS1158%20FORESEE_eMMC_NCEMASD9-08G%20SPEC%20A0%2020150701.pdf Foresee eMMC Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/AP6255%20IND%20datasheet_V1.1_12042017.pdf AP6255 Module Spec Sheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/RTL8211F-CG-RealtekMicroelectronics.pdf Ethernet PHY Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/LX50HDI4002-V0.pdf LCD Module Specification]
* [http://files.lindeni.org/lindenis-v5/datasheets/GT911%20Capacitive%20Touch%20Controller%20Datasheet.pdf GOODiX GT911 5-Point Capacitive Touch Controller Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/GL850G%20Datasheet_128.pdf USB 2.0 Hub Controller]

== SDK ==

=== Overview ===

==== Features ====
*Linux kernel 4.9 (official version)
* U-Boot 2014.07
* ARM GCC based cross toolchain
* Integrated build system

==== Main Components ====
==== Layout ====
<pre>
├── build
├── config
├── Config.in
├── dl
├── docs
├── lichee
├── logs
├── Makefile
├── out
├── package
├── prebuilt
├── rules.mk
├── scripts
├── softwinner
├── target
├── toolchain
└── tools
</pre>

=== Download and Build ===
==== System requirements ====
Listed below are the recommended requirements for downloading and building the SDK:
* CPU: x86_64 or better family processor
* Memory: 8GB or higher
* Disk: 10GB free hard disk space
* OS: Ubuntu 14.04 (tested) or higher
* Network: internet connection
==== Linux host setup ====

Ubuntu 14.04

''HINT: later version should also work.''

'''Install prerequisites'''

<pre>
$ sudo dpkg --add-architecture i386
$ sudo apt-get update
$ sudo apt-get install git git-core u-boot-tools qemu qemu-user-static debootstrap lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386 gawk
</pre>

* dpkg --add-architecture i386: support 32bit architecture
* apt-get update: retrieve new lists of packages
* git git-core: manage source code
* u-boot-tools: build kernel image
* qemu qemu-user-static: emulator for arm on host CPU
* debootstrap: for installing a Debian base system
* lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386: for running 32bit tools
* gawk: GNU Awk

'''Sudo without password'''

<pre>
$ sudo visudo
</pre>

Add this line at the end (change “tom” to your username):
<pre>tom ALL=(ALL) NOPASSWD: ALL</pre>
Ctrl-X to leave, save your changes, and you're done!

==== Downloading ====
The SDK is available on [https://github.com/lindenis-org github].

We use Repo manage Git repositories. Clone Repo from [https://android.googlesource.com/tools/repo android Git repositories] or other mirrors and install it.
 Chinese developers can install Repo follow these steps:
<pre>
$ git clone http://mirrors.ustc.edu.cn/aosp/git-repo.git ~/.bin/repo
$ echo "export PATH=~/.bin/repo:$PATH" >> ~/.bashrc
$ source ~/.bashrc
</pre>

==== Building ====
===== Setup env =====
*For Lindenis V536 SBC:
*For Lindenis V536 SOM:

===== Build source =====
* Build kernel and rootfs
If you are the first time downloaded the SDK and have not built the SDK before, run the below two commands, then exit and save the configuration at first.
<pre>
$ make menuconfig
</pre>
<pre>
$ make kernel_menuconfig
</pre>
Then make it and wait ...
<pre>
$ make -j8 V=s
</pre>

===== Build image =====
<pre>
$ pack
</pre>

==== Installation ====

== OS ==
=== Overview ===
Lindenis Video OS is the recommended operating system for normal use on Lindenis V536 series boards. Lindenis Video OS is maintained by [http://www.lindeni.com/ Lindenis Tech. Ltd.]. The SDK is hosted on [https://github.com/lindenis-org GitHub].
===== Applications =====
[[File:LindenisVideoOS.png|500px|thumb|Lindenis Video OS Architecture]]
* Lindlive: a low-laternce A/V streaming application powered by Lindenis.
* Lindplayer: a meida player application powered Lindenis.
* Lindcamera: a camera application (supported preview, snapshot and recording) powered by Lindenis.
* ... ...

===== Framewrok =====

* FFindeni: a multimedia framework specialized for low-latency A/V processing built by Lindenis.
* CedarX: a Allwinner official multimedia decoding framework.
* [http://www.minigui.org/ MiniGUI]: a tiny and efficiency open source GUI framework.
* ... ...

===== Libraries =====

* Runtime Libraries: the system basic libraries like libc and so on.
* Libavwrapper: a Lindenis-built library abstracted the hardware operation of the A/V processing.
* [http://ffmpeg.org/ FFmpeg]: an open source software library for recording, converting and streaming audio and video.
* [http://live555.com/ Live555]: an open source software library for streaming audio and video.
* ... ...

===== Linux Kernel =====

* Official version: 4.9

=== System Setup ===

===== Uart =====

===== Camera =====

===== Display =====

===== TouchPanel =====

===== Wifi =====
*sys_config.fex should config as follow:
<pre>
[wlan]
wlan_used = 1
wlan_busnum = 1
;wlan_usbnum = 3
wlan_power = "vcc33-wifi"
wlan_io_regulator = "vcc-pg"
;wlan_en = port:PG11<1><default><default><0>
wlan_regon = port:PG11<1><default><default><0>
wlan_hostwake = port:PL05<6><default><default><0>
</pre>
*make sure CONFIG_BCMDHD is configured when make kernel_menuconfig
<pre>
CONFIG_BCMDHD = m
</pre>
*make sure PACKAGE_ap6255-firmware is configured when make menuconfig
<pre>
PACKAGE_ap6255-firmware = y
</pre>

===== Bluetooth =====

===== Ethernet =====
*sys_config.fex should configured as follow:
<pre>
[gmac0]
gmac0_used = 1
phy-mode = "rgmii"
gmac_rxd3 = port:PE00<3><default><default><default>
gmac_rxd2 = port:PE01<3><default><default><default>
gmac_rxd1 = port:PE02<3><default><default><default>
gmac_rxd0 = port:PE03<3><default><default><default>
gmac_rxck = port:PE04<3><default><default><default>
gmac_rxctl = port:PE05<3><default><default><default>
gmac_clkin = port:PE06<3><default><default><default>
gmac_txd3 = port:PE07<3><default><3><default>
gmac_txd2 = port:PE08<3><default><3><default>
gmac_txd1 = port:PE09<3><default><3><default>
gmac_txd0 = port:PE10<3><default><3><default>
gmac_txck = port:PE11<3><default><3><default>
gmac_txctl = port:PE12<3><default><3><default>
gmac_mdc = port:PE13<3><default><3><default>
gmac_mdio = port:PE14<3><default><3><default>
gmac_ephy25m = port:PE15<3><default><default><default>
phy-rst = port:PE21<1><default><default><0>
gmac-power0 = "vcc-ephy"
gmac-power1 = ""
gmac-power2 = ""
tx-delay = 7
rx-delay = 31
use_ephy25m = 1
</pre>
*make sure CONFIG_SUNXI_GMAC is configured when make kernel_menuconfig
<pre>
CONFIG_SUNXI_GMAC = y
</pre>

===== Keypad =====

===== Audio =====
====== audiocodec ======
*sys_config.fex should configured as follow:
<pre>
[sndcodec]
sndcodec_used = 0x1

[i2s]
i2s_used = 0x1

[codec]
codec_used = 0x1
lineoutvol = 0x1f
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
pa_ctl_level = 0x1
pa_msleep_time = 0xa0
gpio-spk = port:PH10<1><1><default><default>
</pre>

====== i2s ======
*sys_config.fex should configured as follow, and the param should configured accord your device need:
:'''if you i2s1 is used'''
<pre>
[snddaudo0]
snddaudio0_used = 1

[daudio0]
daudio0_used = 1
daudio_master = 4
audio_format = 4
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 0
tx_data_mode = 0
rx_data_mode = 0
</pre>

:'''if you i2s2 is used'''
<pre>
[snddaudo2]
snddaudio2_used = 1

[daudio2]
daudio2_used = 1
daudio_master = 4
audio_format = 1
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 32
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 0
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0
</pre>
*make sure CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO configured when make kernel_menuconfig
<pre>
CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO = y
</pre>

=== Application Demo ===
The application demos powered by Lindenis.

===== Lindlive =====
lindlive is a high performance low latency live streaming library.
lindlive integrate some usefule function modules, such as audio/video capture, encoding and streaming protocol.
So developers can easily implement a live streaming server based on lindenis board.

There are two samples app using lindlive, one is sample_mppsrc_2_livesink and the other is sample_mppsrc_2_ffsink.
The sample source code is located in SDK.

!!! It is strongly recommended to use lindplayer with '-live' as the client of the lindlive.
It will be lower latency.

usage:
sample_mppsrc_2_livesink -i [ip] -p [port] -n [name]
-i [ip] is the ip address of the server. If it is not set, the 'ip' default is local ethernet or wifi ip address.
-p [port] is the port of the server. If it is not set, the 'port' default is rtsp port 8554.
-n [name] is the name of live streaming. If it is not set, the 'name' default is 'live'.
All of the arguments are optional.
If sample_mppsrc_2_livesink is correctly running, the server url is 'rtsp://[ip]:[port]/[name]'
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.

sample_mppsrc_2_ffsink -t [type] -u [url]
-t [type]: the muxer type, can be 'mpegts/mp4/rtp/rtp_mpegts/rtsp/rtmp'
-u [url] : sink to url, like: '/tmp/out.mp4' or 'rtp://192.168.1.100:12345'
Example 1: sink as a live streaming.
sample_mppsrc_2_ffsink -t rtp_mpegts -u rtp://192.168.3.118:12345
sample_mppsrc_2_ffsink -t rtp -u rtp://192.168.3.118:12342/test
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.
Example 2: save as a local file.
sample_mppsrc_2_ffsink -t mp4 -u /tmp/out.mp4
sample_mppsrc_2_ffsink -t mpegts -u /tmp/out.ts

===== Lindplayer =====
lindplayer is a high performance media player that can run on lindenis board.
It supports upto 4K@30fps H.264/H.265 video decoder.
It can play a local media file or a media stream from internet.

usage:
lindplayer -u [url] <options>
-u [url] is the media path to be played.
<options> use -live to indicate this is a live streaming.
such as:
lindplayer -u ./movie.ts
or lindplayer -u http://192.168.1.102/test
or lindplayer -u rtsp://192.168.1.102/test -live

===== Lindcamera =====

Lindenis V536

2020-01-19T09:47:46Z

Xiaoshujun: /* Lindlive */

== Key Features ==
=== Processor core ===
*Dual-Core Cortex A7@1.2GHz
*Neon acceleration, integrated FPU

=== Video Encoding/Decoding Performance ===
*H.264 BP/MP/HP, H.265 Main Profile encoding
*I/P/Dual P frame H.264/H.265 encoding
*MJPEG/JPEG baseline encoding
*Real-time multi-stream H.264/H.265 encoding capability:
**- 3840x2160@30fps+720p@30fps encoding
**- 3840x2160@30fps decoding
*Maximum 8192x8192 resolution for JPEG encoding/decoding
*CBR, VBR modes
*Encoding of eight ROIs

=== Graphics Processing ===
*Supports Lens distortion correction, fisheye and wide angle correction
*Supports 90°、180°、270° picture rotation

=== Professional Image Effects ===
*Maximum performance is 4224x3168@30fps
*Adjustable 3A functions (AE, AWB and AF)
*Supports 2F WDR and Local Tone mapping,supporting highlight suppression and backlight compensation
*Supports bad pixel correction, Lens shading correction
*Supports multi-level 3D denoising, remove motion smear and color noise
*Supports color adjustment, color enhancement
*Supports image dynamic contrast enhance and sharpness enhance
*Supports 4 channels of scaling output from 1/8x to 1x
*OSD overlaying of eight regions before encoding
*Supports image mirroring and flipping

=== Various interfaces ===
*Supports MIPI-CSI2\HiSPi\Sub-LVDS
*Supports BT1120 input/output
*Supports Line-in/Line-out
*Supports Dual-channel differential MIC inputs
*Supports WiFi 802.11ac / BT4.2 (option)

=== Software Support ===
*Linux-4.9

== Target Applications ==
*SDV
*Smart IPC
*Smart Camera
Or you can use it to build:
*A computer
*A streaming server

== Accessories Step-by-Step Guides ==

=== Power Supply ===

* [http://files.lindeni.org/lindenis-v5/accessories/Power-Supply-Brief.pdf 5V 2A Power Supply]

=== HDMI Cable ===

* [http://files.lindeni.org/lindenis-v5/accessories/HDMI-Cable-Brief.pdf 4K HDMI Cable]

=== Camera module ===

* [http://files.lindeni.org/lindenis-v5/accessories/Camera-Module-Brief.pdf 4K Camera Module brief]

=== LCD ===

* [http://files.lindeni.org/lindenis-v5/accessories/LCD-with-CTP-Brief.pdf 5" 720P LCD with CTP brief]

=== Flash module ===

* [http://files.lindeni.org/lindenis-v5/accessories/eMMC-Module-Brief.pdf 8GB eMMC Module brief]

=== WiFi and Bluetooth module ===

* [http://files.lindeni.org/lindenis-v5/accessories/WiFi-Module-Brief.pdf WiFi 802.11ac / BT4.2 Module brief]

== Hardware Specification ==

=== Board Features ===

==== Video Out ====

* HDMI 1.4 Type A, up to 4K@30FPS
* MIPI-DSI, 4 lanes, up to 1080P
* LCD interface

==== Video In ====

* 1 x MIPI-CSI2 - Camera interface, 4 lanes per channel

==== Audio ====
* 3.5mm Line in / out
* 1 x mic
* 1 x dmic

==== Network ====
* 10/100/1000Mbps Ethernet
* WiFi with Bluetooth (optional)

==== Storage ====
* MicroSD Card bootable, support SDHC and SDXC, storage up to 256GB

==== Expansion Ports ====
* Board to Board connector - Flash module interface
* Wi-Fi/BT Module Header - SDIO 3.0 and UART, pitch 2.0mm
* 2x10 pins "Power Supply" GPIO Header: vbat, aldo1, bldo1, aldo3
* 4 pins GPIO Header: TWI1
* 2x7 pins "I2S" GPIO Header
* 3 pins GPIO Header: PH4, PH10, GND
* 3 pins GPIO Header: 1xADC
* 4 pins GPIO Header: S-TWI
* VBAT: Battery connector
* Storage: Bootable MicroSD card
* Video out: HDMI 1.4, 4 lanes MIPI-DSI
* Video in: 1 x DVP
* Audio: 3.5mm Line in / out, 1 x mic
* Network: 10/100/1000Mbps Ethernet
* USB: 1 x Micro USB, 2 x USB 2.0

=== Board Information ===
* Board Dimensions: 130mm x 85mm
* Input Power: 5V@2A micro USB connector, 3.7V Li-Ion battery connector
* [http://files.lindeni.org/lindenis-v5/datasheets/lindenis-v536-DIBAN_20191013-map.pdf Lindenis V536 PCB place map]

== Datasheet ==
* [http://files.lindeni.org/lindenis-v5/datasheets/V536-brief-en.pdf Allwinner V536 SOC Brief]
* [http://files.lindeni.org/lindenis-v5/datasheets/OP03-JS1158%20FORESEE_eMMC_NCEMASD9-08G%20SPEC%20A0%2020150701.pdf Foresee eMMC Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/AP6255%20IND%20datasheet_V1.1_12042017.pdf AP6255 Module Spec Sheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/RTL8211F-CG-RealtekMicroelectronics.pdf Ethernet PHY Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/LX50HDI4002-V0.pdf LCD Module Specification]
* [http://files.lindeni.org/lindenis-v5/datasheets/GT911%20Capacitive%20Touch%20Controller%20Datasheet.pdf GOODiX GT911 5-Point Capacitive Touch Controller Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/GL850G%20Datasheet_128.pdf USB 2.0 Hub Controller]

== SDK ==

=== Overview ===

==== Features ====
*Linux kernel 4.9 (official version)
* U-Boot 2014.07
* ARM GCC based cross toolchain
* Integrated build system

==== Main Components ====
==== Layout ====
<pre>
├── build
├── config
├── Config.in
├── dl
├── docs
├── lichee
├── logs
├── Makefile
├── out
├── package
├── prebuilt
├── rules.mk
├── scripts
├── softwinner
├── target
├── toolchain
└── tools
</pre>

=== Download and Build ===
==== System requirements ====
Listed below are the recommended requirements for downloading and building the SDK:
* CPU: x86_64 or better family processor
* Memory: 8GB or higher
* Disk: 10GB free hard disk space
* OS: Ubuntu 14.04 (tested) or higher
* Network: internet connection
==== Linux host setup ====

Ubuntu 14.04

''HINT: later version should also work.''

'''Install prerequisites'''

<pre>
$ sudo dpkg --add-architecture i386
$ sudo apt-get update
$ sudo apt-get install git git-core u-boot-tools qemu qemu-user-static debootstrap lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386 gawk
</pre>

* dpkg --add-architecture i386: support 32bit architecture
* apt-get update: retrieve new lists of packages
* git git-core: manage source code
* u-boot-tools: build kernel image
* qemu qemu-user-static: emulator for arm on host CPU
* debootstrap: for installing a Debian base system
* lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386: for running 32bit tools
* gawk: GNU Awk

'''Sudo without password'''

<pre>
$ sudo visudo
</pre>

Add this line at the end (change “tom” to your username):
<pre>tom ALL=(ALL) NOPASSWD: ALL</pre>
Ctrl-X to leave, save your changes, and you're done!

==== Downloading ====
The SDK is available on [https://github.com/lindenis-org github].

We use Repo manage Git repositories. Clone Repo from [https://android.googlesource.com/tools/repo android Git repositories] or other mirrors and install it.
 Chinese developers can install Repo follow these steps:
<pre>
$ git clone http://mirrors.ustc.edu.cn/aosp/git-repo.git ~/.bin/repo
$ echo "export PATH=~/.bin/repo:$PATH" >> ~/.bashrc
$ source ~/.bashrc
</pre>

==== Building ====
===== Setup env =====
*For Lindenis V536 SBC:
*For Lindenis V536 SOM:

===== Build source =====
* Build kernel and rootfs
If you are the first time downloaded the SDK and have not built the SDK before, run the below two commands, then exit and save the configuration at first.
<pre>
$ make menuconfig
</pre>
<pre>
$ make kernel_menuconfig
</pre>
Then make it and wait ...
<pre>
$ make -j8 V=s
</pre>

===== Build image =====
<pre>
$ pack
</pre>

==== Installation ====

== OS ==
=== Overview ===
Lindenis Video OS is the recommended operating system for normal use on Lindenis V536 series boards. Lindenis Video OS is maintained by [http://www.lindeni.com/ Lindenis Tech. Ltd.]. The SDK is hosted on [https://github.com/lindenis-org GitHub].
===== Applications =====
[[File:LindenisVideoOS.png|500px|thumb|Lindenis Video OS Architecture]]
* Lindlive: a low-laternce A/V streaming application powered by Lindenis.
* Lindplayer: a meida player application powered Lindenis.
* Lindcamera: a camera application (supported preview, snapshot and recording) powered by Lindenis.
* ... ...

===== Framewrok =====

* FFindeni: a multimedia framework specialized for low-latency A/V processing built by Lindenis.
* CedarX: a Allwinner official multimedia decoding framework.
* [http://www.minigui.org/ MiniGUI]: a tiny and efficiency open source GUI framework.
* ... ...

===== Libraries =====

* Runtime Libraries: the system basic libraries like libc and so on.
* Libavwrapper: a Lindenis-built library abstracted the hardware operation of the A/V processing.
* [http://ffmpeg.org/ FFmpeg]: an open source software library for recording, converting and streaming audio and video.
* [http://live555.com/ Live555]: an open source software library for streaming audio and video.
* ... ...

===== Linux Kernel =====

* Official version: 4.9

=== System Setup ===

===== Uart =====

===== Camera =====

===== Display =====

===== TouchPanel =====

===== Wifi =====
*sys_config.fex should config as follow:
<pre>
[wlan]
wlan_used = 1
wlan_busnum = 1
;wlan_usbnum = 3
wlan_power = "vcc33-wifi"
wlan_io_regulator = "vcc-pg"
;wlan_en = port:PG11<1><default><default><0>
wlan_regon = port:PG11<1><default><default><0>
wlan_hostwake = port:PL05<6><default><default><0>
</pre>
*make sure CONFIG_BCMDHD is configured when make kernel_menuconfig
<pre>
CONFIG_BCMDHD = m
</pre>
*make sure PACKAGE_ap6255-firmware is configured when make menuconfig
<pre>
PACKAGE_ap6255-firmware = y
</pre>

===== Bluetooth =====

===== Ethernet =====
*sys_config.fex should configured as follow:
<pre>
[gmac0]
gmac0_used = 1
phy-mode = "rgmii"
gmac_rxd3 = port:PE00<3><default><default><default>
gmac_rxd2 = port:PE01<3><default><default><default>
gmac_rxd1 = port:PE02<3><default><default><default>
gmac_rxd0 = port:PE03<3><default><default><default>
gmac_rxck = port:PE04<3><default><default><default>
gmac_rxctl = port:PE05<3><default><default><default>
gmac_clkin = port:PE06<3><default><default><default>
gmac_txd3 = port:PE07<3><default><3><default>
gmac_txd2 = port:PE08<3><default><3><default>
gmac_txd1 = port:PE09<3><default><3><default>
gmac_txd0 = port:PE10<3><default><3><default>
gmac_txck = port:PE11<3><default><3><default>
gmac_txctl = port:PE12<3><default><3><default>
gmac_mdc = port:PE13<3><default><3><default>
gmac_mdio = port:PE14<3><default><3><default>
gmac_ephy25m = port:PE15<3><default><default><default>
phy-rst = port:PE21<1><default><default><0>
gmac-power0 = "vcc-ephy"
gmac-power1 = ""
gmac-power2 = ""
tx-delay = 7
rx-delay = 31
use_ephy25m = 1
</pre>
*make sure CONFIG_SUNXI_GMAC is configured when make kernel_menuconfig
<pre>
CONFIG_SUNXI_GMAC = y
</pre>

===== Keypad =====

===== Audio =====
====== audiocodec ======
*sys_config.fex should configured as follow:
<pre>
[sndcodec]
sndcodec_used = 0x1

[i2s]
i2s_used = 0x1

[codec]
codec_used = 0x1
lineoutvol = 0x1f
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
pa_ctl_level = 0x1
pa_msleep_time = 0xa0
gpio-spk = port:PH10<1><1><default><default>
</pre>

====== i2s ======
*sys_config.fex should configured as follow, and the param should configured accord your device need:
:'''if you i2s1 is used'''
<pre>
[snddaudo0]
snddaudio0_used = 1

[daudio0]
daudio0_used = 1
daudio_master = 4
audio_format = 4
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 0
tx_data_mode = 0
rx_data_mode = 0
</pre>

:'''if you i2s2 is used'''
<pre>
[snddaudo2]
snddaudio2_used = 1

[daudio2]
daudio2_used = 1
daudio_master = 4
audio_format = 1
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 32
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 0
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0
</pre>
*make sure CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO configured when make kernel_menuconfig
<pre>
CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO = y
</pre>

=== Application Demo ===
The application demos powered by Lindenis.

===== Lindlive =====
lindlive is a high performance low latency live streaming library.
lindlive integrate some usefule function modules, such as audio/video capture, encoding and streaming protocol.
So developers can easily implement a live streaming server based on lindenis board.

There are two samples app using lindlive, one is sample_mppsrc_2_livesink and the other is sample_mppsrc_2_ffsink.
The sample source code is located in SDK.

!!! It is strongly recommended to use lindplayer with '-live' as the client of the lindlive.
It will be lower latency.

usage:
sample_mppsrc_2_livesink -i [ip] -p [port] -n [name]
-i [ip] is the ip address of the server. If it is not set, the 'ip' default is local ethernet or wifi ip address.
-p [port] is the port of the server. If it is not set, the 'port' default is rtsp port 8554.
-n [name] is the name of live streaming. If it is not set, the 'name' default is 'live'.
All of the arguments are optional.
If sample_mppsrc_2_livesink is correctly running, the server url is 'rtsp://[ip]:[port]/[name]'
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.

sample_mppsrc_2_ffsink -t [type] -u [url]
-t [type]: the muxer type, can be 'mpegts/mp4/rtp/rtp_mpegts/rtsp/rtmp'
-u [url] : sink to url, like: '/tmp/out.mp4' or 'rtp://192.168.1.100:12345'
Example 1: sink as a live streaming.
sample_mppsrc_2_ffsink -t rtp_mpegts -u rtp://192.168.3.118:12345
sample_mppsrc_2_ffsink -t rtp -u rtp://192.168.3.118:12342/test
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.
Example 2: save as a local file.
sample_mppsrc_2_ffsink -t mp4 -u /tmp/out.mp4
sample_mppsrc_2_ffsink -t mpegts -u /tmp/out.ts

===== Lindplayer =====
lindplayer is a high performance media player that can run on lindenis board.
It supports upto 4K@30fps H.264/H.265 video decoder.
It can play a local media file or a media stream from internet.

usage:
lindplayer -u [url] <options>
-u [url] is the media path to be played.
<options> use -live to indicate this is a live video.
such as:
lindplayer -u ./movie.ts
or lindplayer -u http://192.168.1.102/test
or lindplayer -u rtsp://192.168.1.102/test -live

===== Lindcamera =====

Lindenis V536

2020-01-19T09:31:13Z

Xiaoshujun: /* Lindplayer */

== Key Features ==
=== Processor core ===
*Dual-Core Cortex A7@1.2GHz
*Neon acceleration, integrated FPU

=== Video Encoding/Decoding Performance ===
*H.264 BP/MP/HP, H.265 Main Profile encoding
*I/P/Dual P frame H.264/H.265 encoding
*MJPEG/JPEG baseline encoding
*Real-time multi-stream H.264/H.265 encoding capability:
**- 3840x2160@30fps+720p@30fps encoding
**- 3840x2160@30fps decoding
*Maximum 8192x8192 resolution for JPEG encoding/decoding
*CBR, VBR modes
*Encoding of eight ROIs

=== Graphics Processing ===
*Supports Lens distortion correction, fisheye and wide angle correction
*Supports 90°、180°、270° picture rotation

=== Professional Image Effects ===
*Maximum performance is 4224x3168@30fps
*Adjustable 3A functions (AE, AWB and AF)
*Supports 2F WDR and Local Tone mapping,supporting highlight suppression and backlight compensation
*Supports bad pixel correction, Lens shading correction
*Supports multi-level 3D denoising, remove motion smear and color noise
*Supports color adjustment, color enhancement
*Supports image dynamic contrast enhance and sharpness enhance
*Supports 4 channels of scaling output from 1/8x to 1x
*OSD overlaying of eight regions before encoding
*Supports image mirroring and flipping

=== Various interfaces ===
*Supports MIPI-CSI2\HiSPi\Sub-LVDS
*Supports BT1120 input/output
*Supports Line-in/Line-out
*Supports Dual-channel differential MIC inputs
*Supports WiFi 802.11ac / BT4.2 (option)

=== Software Support ===
*Linux-4.9

== Target Applications ==
*SDV
*Smart IPC
*Smart Camera
Or you can use it to build:
*A computer
*A streaming server

== Accessories Step-by-Step Guides ==

=== Power Supply ===

* [http://files.lindeni.org/lindenis-v5/accessories/Power-Supply-Brief.pdf 5V 2A Power Supply]

=== HDMI Cable ===

* [http://files.lindeni.org/lindenis-v5/accessories/HDMI-Cable-Brief.pdf 4K HDMI Cable]

=== Camera module ===

* [http://files.lindeni.org/lindenis-v5/accessories/Camera-Module-Brief.pdf 4K Camera Module brief]

=== LCD ===

* [http://files.lindeni.org/lindenis-v5/accessories/LCD-with-CTP-Brief.pdf 5" 720P LCD with CTP brief]

=== Flash module ===

* [http://files.lindeni.org/lindenis-v5/accessories/eMMC-Module-Brief.pdf 8GB eMMC Module brief]

=== WiFi and Bluetooth module ===

* [http://files.lindeni.org/lindenis-v5/accessories/WiFi-Module-Brief.pdf WiFi 802.11ac / BT4.2 Module brief]

== Hardware Specification ==

=== Board Features ===

==== Video Out ====

* HDMI 1.4 Type A, up to 4K@30FPS
* MIPI-DSI, 4 lanes, up to 1080P
* LCD interface

==== Video In ====

* 1 x MIPI-CSI2 - Camera interface, 4 lanes per channel

==== Audio ====
* 3.5mm Line in / out
* 1 x mic
* 1 x dmic

==== Network ====
* 10/100/1000Mbps Ethernet
* WiFi with Bluetooth (optional)

==== Storage ====
* MicroSD Card bootable, support SDHC and SDXC, storage up to 256GB

==== Expansion Ports ====
* Board to Board connector - Flash module interface
* Wi-Fi/BT Module Header - SDIO 3.0 and UART, pitch 2.0mm
* 2x10 pins "Power Supply" GPIO Header: vbat, aldo1, bldo1, aldo3
* 4 pins GPIO Header: TWI1
* 2x7 pins "I2S" GPIO Header
* 3 pins GPIO Header: PH4, PH10, GND
* 3 pins GPIO Header: 1xADC
* 4 pins GPIO Header: S-TWI
* VBAT: Battery connector
* Storage: Bootable MicroSD card
* Video out: HDMI 1.4, 4 lanes MIPI-DSI
* Video in: 1 x DVP
* Audio: 3.5mm Line in / out, 1 x mic
* Network: 10/100/1000Mbps Ethernet
* USB: 1 x Micro USB, 2 x USB 2.0

=== Board Information ===
* Board Dimensions: 130mm x 85mm
* Input Power: 5V@2A micro USB connector, 3.7V Li-Ion battery connector
* [http://files.lindeni.org/lindenis-v5/datasheets/lindenis-v536-DIBAN_20191013-map.pdf Lindenis V536 PCB place map]

== Datasheet ==
* [http://files.lindeni.org/lindenis-v5/datasheets/V536-brief-en.pdf Allwinner V536 SOC Brief]
* [http://files.lindeni.org/lindenis-v5/datasheets/OP03-JS1158%20FORESEE_eMMC_NCEMASD9-08G%20SPEC%20A0%2020150701.pdf Foresee eMMC Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/AP6255%20IND%20datasheet_V1.1_12042017.pdf AP6255 Module Spec Sheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/RTL8211F-CG-RealtekMicroelectronics.pdf Ethernet PHY Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/LX50HDI4002-V0.pdf LCD Module Specification]
* [http://files.lindeni.org/lindenis-v5/datasheets/GT911%20Capacitive%20Touch%20Controller%20Datasheet.pdf GOODiX GT911 5-Point Capacitive Touch Controller Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/GL850G%20Datasheet_128.pdf USB 2.0 Hub Controller]

== SDK ==

=== Overview ===

==== Features ====
*Linux kernel 4.9 (official version)
* U-Boot 2014.07
* ARM GCC based cross toolchain
* Integrated build system

==== Main Components ====
==== Layout ====
<pre>
├── build
├── config
├── Config.in
├── dl
├── docs
├── lichee
├── logs
├── Makefile
├── out
├── package
├── prebuilt
├── rules.mk
├── scripts
├── softwinner
├── target
├── toolchain
└── tools
</pre>

=== Download and Build ===
==== System requirements ====
Listed below are the recommended requirements for downloading and building the SDK:
* CPU: x86_64 or better family processor
* Memory: 8GB or higher
* Disk: 10GB free hard disk space
* OS: Ubuntu 14.04 (tested) or higher
* Network: internet connection
==== Linux host setup ====

Ubuntu 14.04

''HINT: later version should also work.''

'''Install prerequisites'''

<pre>
$ sudo dpkg --add-architecture i386
$ sudo apt-get update
$ sudo apt-get install git git-core u-boot-tools qemu qemu-user-static debootstrap lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386 gawk
</pre>

* dpkg --add-architecture i386: support 32bit architecture
* apt-get update: retrieve new lists of packages
* git git-core: manage source code
* u-boot-tools: build kernel image
* qemu qemu-user-static: emulator for arm on host CPU
* debootstrap: for installing a Debian base system
* lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386: for running 32bit tools
* gawk: GNU Awk

'''Sudo without password'''

<pre>
$ sudo visudo
</pre>

Add this line at the end (change “tom” to your username):
<pre>tom ALL=(ALL) NOPASSWD: ALL</pre>
Ctrl-X to leave, save your changes, and you're done!

==== Downloading ====
The SDK is available on [https://github.com/lindenis-org github].

We use Repo manage Git repositories. Clone Repo from [https://android.googlesource.com/tools/repo android Git repositories] or other mirrors and install it.
 Chinese developers can install Repo follow these steps:
<pre>
$ git clone http://mirrors.ustc.edu.cn/aosp/git-repo.git ~/.bin/repo
$ echo "export PATH=~/.bin/repo:$PATH" >> ~/.bashrc
$ source ~/.bashrc
</pre>

==== Building ====
===== Setup env =====
*For Lindenis V536 SBC:
*For Lindenis V536 SOM:

===== Build source =====
* Build kernel and rootfs
If you are the first time downloaded the SDK and have not built the SDK before, run the below two commands, then exit and save the configuration at first.
<pre>
$ make menuconfig
</pre>
<pre>
$ make kernel_menuconfig
</pre>
Then make it and wait ...
<pre>
$ make -j8 V=s
</pre>

===== Build image =====
<pre>
$ pack
</pre>

==== Installation ====

== OS ==
=== Overview ===
Lindenis Video OS is the recommended operating system for normal use on Lindenis V536 series boards. Lindenis Video OS is maintained by [http://www.lindeni.com/ Lindenis Tech. Ltd.]. The SDK is hosted on [https://github.com/lindenis-org GitHub].
===== Applications =====
[[File:LindenisVideoOS.png|500px|thumb|Lindenis Video OS Architecture]]
* Lindlive: a low-laternce A/V streaming application powered by Lindenis.
* Lindplayer: a meida player application powered Lindenis.
* Lindcamera: a camera application (supported preview, snapshot and recording) powered by Lindenis.
* ... ...

===== Framewrok =====

* FFindeni: a multimedia framework specialized for low-latency A/V processing built by Lindenis.
* CedarX: a Allwinner official multimedia decoding framework.
* [http://www.minigui.org/ MiniGUI]: a tiny and efficiency open source GUI framework.
* ... ...

===== Libraries =====

* Runtime Libraries: the system basic libraries like libc and so on.
* Libavwrapper: a Lindenis-built library abstracted the hardware operation of the A/V processing.
* [http://ffmpeg.org/ FFmpeg]: an open source software library for recording, converting and streaming audio and video.
* [http://live555.com/ Live555]: an open source software library for streaming audio and video.
* ... ...

===== Linux Kernel =====

* Official version: 4.9

=== System Setup ===

===== Uart =====

===== Camera =====

===== Display =====

===== TouchPanel =====

===== Wifi =====
*sys_config.fex should config as follow:
<pre>
[wlan]
wlan_used = 1
wlan_busnum = 1
;wlan_usbnum = 3
wlan_power = "vcc33-wifi"
wlan_io_regulator = "vcc-pg"
;wlan_en = port:PG11<1><default><default><0>
wlan_regon = port:PG11<1><default><default><0>
wlan_hostwake = port:PL05<6><default><default><0>
</pre>
*make sure CONFIG_BCMDHD is configured when make kernel_menuconfig
<pre>
CONFIG_BCMDHD = m
</pre>
*make sure PACKAGE_ap6255-firmware is configured when make menuconfig
<pre>
PACKAGE_ap6255-firmware = y
</pre>

===== Bluetooth =====

===== Ethernet =====
*sys_config.fex should configured as follow:
<pre>
[gmac0]
gmac0_used = 1
phy-mode = "rgmii"
gmac_rxd3 = port:PE00<3><default><default><default>
gmac_rxd2 = port:PE01<3><default><default><default>
gmac_rxd1 = port:PE02<3><default><default><default>
gmac_rxd0 = port:PE03<3><default><default><default>
gmac_rxck = port:PE04<3><default><default><default>
gmac_rxctl = port:PE05<3><default><default><default>
gmac_clkin = port:PE06<3><default><default><default>
gmac_txd3 = port:PE07<3><default><3><default>
gmac_txd2 = port:PE08<3><default><3><default>
gmac_txd1 = port:PE09<3><default><3><default>
gmac_txd0 = port:PE10<3><default><3><default>
gmac_txck = port:PE11<3><default><3><default>
gmac_txctl = port:PE12<3><default><3><default>
gmac_mdc = port:PE13<3><default><3><default>
gmac_mdio = port:PE14<3><default><3><default>
gmac_ephy25m = port:PE15<3><default><default><default>
phy-rst = port:PE21<1><default><default><0>
gmac-power0 = "vcc-ephy"
gmac-power1 = ""
gmac-power2 = ""
tx-delay = 7
rx-delay = 31
use_ephy25m = 1
</pre>
*make sure CONFIG_SUNXI_GMAC is configured when make kernel_menuconfig
<pre>
CONFIG_SUNXI_GMAC = y
</pre>

===== Keypad =====

===== Audio =====
====== audiocodec ======
*sys_config.fex should configured as follow:
<pre>
[sndcodec]
sndcodec_used = 0x1

[i2s]
i2s_used = 0x1

[codec]
codec_used = 0x1
lineoutvol = 0x1f
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
pa_ctl_level = 0x1
pa_msleep_time = 0xa0
gpio-spk = port:PH10<1><1><default><default>
</pre>

====== i2s ======
*sys_config.fex should configured as follow, and the param should configured accord your device need:
:'''if you i2s1 is used'''
<pre>
[snddaudo0]
snddaudio0_used = 1

[daudio0]
daudio0_used = 1
daudio_master = 4
audio_format = 4
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 0
tx_data_mode = 0
rx_data_mode = 0
</pre>

:'''if you i2s2 is used'''
<pre>
[snddaudo2]
snddaudio2_used = 1

[daudio2]
daudio2_used = 1
daudio_master = 4
audio_format = 1
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 32
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 0
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0
</pre>
*make sure CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO configured when make kernel_menuconfig
<pre>
CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO = y
</pre>

=== Application Demo ===
The application demos powered by Lindenis.

===== Lindlive =====
lindlive is a high performance low latency live streaming library.
lindlive integrate some usefule function modules, such as audio/video capture, encoding and streaming protocol.
So developers can easily implement a live streaming server based on lindenis board.

There are two samples app using lindlive, one is sample_mppsrc_2_livesink and the other is sample_mppsrc_2_ffsink.
The sample source code is located in SDK.

usage:
sample_mppsrc_2_livesink -i [ip] -p [port] -n [name]
-i [ip] is the ip address of the server. If it is not set, the 'ip' default is local ethernet or wifi ip address.
-p [port] is the port of the server. If it is not set, the 'port' default is rtsp port 8554.
-n [name] is the name of live streaming. If it is not set, the 'name' default is 'live'.
All of the arguments are optional.
If sample_mppsrc_2_livesink is correctly running, the server url is 'rtsp://[ip]:[port]/[name]'
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.

===== Lindplayer =====
lindplayer is a high performance media player that can run on lindenis board.
It supports upto 4K@30fps H.264/H.265 video decoder.
It can play a local media file or a media stream from internet.

usage:
lindplayer -u [url] <options>
-u [url] is the media path to be played.
<options> use -live to indicate this is a live video.
such as:
lindplayer -u ./movie.ts
or lindplayer -u http://192.168.1.102/test
or lindplayer -u rtsp://192.168.1.102/test -live

===== Lindcamera =====

Lindenis V536

2020-01-19T09:29:33Z

Xiaoshujun: /* Application Demo */

== Key Features ==
=== Processor core ===
*Dual-Core Cortex A7@1.2GHz
*Neon acceleration, integrated FPU

=== Video Encoding/Decoding Performance ===
*H.264 BP/MP/HP, H.265 Main Profile encoding
*I/P/Dual P frame H.264/H.265 encoding
*MJPEG/JPEG baseline encoding
*Real-time multi-stream H.264/H.265 encoding capability:
**- 3840x2160@30fps+720p@30fps encoding
**- 3840x2160@30fps decoding
*Maximum 8192x8192 resolution for JPEG encoding/decoding
*CBR, VBR modes
*Encoding of eight ROIs

=== Graphics Processing ===
*Supports Lens distortion correction, fisheye and wide angle correction
*Supports 90°、180°、270° picture rotation

=== Professional Image Effects ===
*Maximum performance is 4224x3168@30fps
*Adjustable 3A functions (AE, AWB and AF)
*Supports 2F WDR and Local Tone mapping,supporting highlight suppression and backlight compensation
*Supports bad pixel correction, Lens shading correction
*Supports multi-level 3D denoising, remove motion smear and color noise
*Supports color adjustment, color enhancement
*Supports image dynamic contrast enhance and sharpness enhance
*Supports 4 channels of scaling output from 1/8x to 1x
*OSD overlaying of eight regions before encoding
*Supports image mirroring and flipping

=== Various interfaces ===
*Supports MIPI-CSI2\HiSPi\Sub-LVDS
*Supports BT1120 input/output
*Supports Line-in/Line-out
*Supports Dual-channel differential MIC inputs
*Supports WiFi 802.11ac / BT4.2 (option)

=== Software Support ===
*Linux-4.9

== Target Applications ==
*SDV
*Smart IPC
*Smart Camera
Or you can use it to build:
*A computer
*A streaming server

== Accessories Step-by-Step Guides ==

=== Power Supply ===

* [http://files.lindeni.org/lindenis-v5/accessories/Power-Supply-Brief.pdf 5V 2A Power Supply]

=== HDMI Cable ===

* [http://files.lindeni.org/lindenis-v5/accessories/HDMI-Cable-Brief.pdf 4K HDMI Cable]

=== Camera module ===

* [http://files.lindeni.org/lindenis-v5/accessories/Camera-Module-Brief.pdf 4K Camera Module brief]

=== LCD ===

* [http://files.lindeni.org/lindenis-v5/accessories/LCD-with-CTP-Brief.pdf 5" 720P LCD with CTP brief]

=== Flash module ===

* [http://files.lindeni.org/lindenis-v5/accessories/eMMC-Module-Brief.pdf 8GB eMMC Module brief]

=== WiFi and Bluetooth module ===

* [http://files.lindeni.org/lindenis-v5/accessories/WiFi-Module-Brief.pdf WiFi 802.11ac / BT4.2 Module brief]

== Hardware Specification ==

=== Board Features ===

==== Video Out ====

* HDMI 1.4 Type A, up to 4K@30FPS
* MIPI-DSI, 4 lanes, up to 1080P
* LCD interface

==== Video In ====

* 1 x MIPI-CSI2 - Camera interface, 4 lanes per channel

==== Audio ====
* 3.5mm Line in / out
* 1 x mic
* 1 x dmic

==== Network ====
* 10/100/1000Mbps Ethernet
* WiFi with Bluetooth (optional)

==== Storage ====
* MicroSD Card bootable, support SDHC and SDXC, storage up to 256GB

==== Expansion Ports ====
* Board to Board connector - Flash module interface
* Wi-Fi/BT Module Header - SDIO 3.0 and UART, pitch 2.0mm
* 2x10 pins "Power Supply" GPIO Header: vbat, aldo1, bldo1, aldo3
* 4 pins GPIO Header: TWI1
* 2x7 pins "I2S" GPIO Header
* 3 pins GPIO Header: PH4, PH10, GND
* 3 pins GPIO Header: 1xADC
* 4 pins GPIO Header: S-TWI
* VBAT: Battery connector
* Storage: Bootable MicroSD card
* Video out: HDMI 1.4, 4 lanes MIPI-DSI
* Video in: 1 x DVP
* Audio: 3.5mm Line in / out, 1 x mic
* Network: 10/100/1000Mbps Ethernet
* USB: 1 x Micro USB, 2 x USB 2.0

=== Board Information ===
* Board Dimensions: 130mm x 85mm
* Input Power: 5V@2A micro USB connector, 3.7V Li-Ion battery connector
* [http://files.lindeni.org/lindenis-v5/datasheets/lindenis-v536-DIBAN_20191013-map.pdf Lindenis V536 PCB place map]

== Datasheet ==
* [http://files.lindeni.org/lindenis-v5/datasheets/V536-brief-en.pdf Allwinner V536 SOC Brief]
* [http://files.lindeni.org/lindenis-v5/datasheets/OP03-JS1158%20FORESEE_eMMC_NCEMASD9-08G%20SPEC%20A0%2020150701.pdf Foresee eMMC Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/AP6255%20IND%20datasheet_V1.1_12042017.pdf AP6255 Module Spec Sheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/RTL8211F-CG-RealtekMicroelectronics.pdf Ethernet PHY Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/LX50HDI4002-V0.pdf LCD Module Specification]
* [http://files.lindeni.org/lindenis-v5/datasheets/GT911%20Capacitive%20Touch%20Controller%20Datasheet.pdf GOODiX GT911 5-Point Capacitive Touch Controller Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/GL850G%20Datasheet_128.pdf USB 2.0 Hub Controller]

== SDK ==

=== Overview ===

==== Features ====
*Linux kernel 4.9 (official version)
* U-Boot 2014.07
* ARM GCC based cross toolchain
* Integrated build system

==== Main Components ====
==== Layout ====
<pre>
├── build
├── config
├── Config.in
├── dl
├── docs
├── lichee
├── logs
├── Makefile
├── out
├── package
├── prebuilt
├── rules.mk
├── scripts
├── softwinner
├── target
├── toolchain
└── tools
</pre>

=== Download and Build ===
==== System requirements ====
Listed below are the recommended requirements for downloading and building the SDK:
* CPU: x86_64 or better family processor
* Memory: 8GB or higher
* Disk: 10GB free hard disk space
* OS: Ubuntu 14.04 (tested) or higher
* Network: internet connection
==== Linux host setup ====

Ubuntu 14.04

''HINT: later version should also work.''

'''Install prerequisites'''

<pre>
$ sudo dpkg --add-architecture i386
$ sudo apt-get update
$ sudo apt-get install git git-core u-boot-tools qemu qemu-user-static debootstrap lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386 gawk
</pre>

* dpkg --add-architecture i386: support 32bit architecture
* apt-get update: retrieve new lists of packages
* git git-core: manage source code
* u-boot-tools: build kernel image
* qemu qemu-user-static: emulator for arm on host CPU
* debootstrap: for installing a Debian base system
* lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386: for running 32bit tools
* gawk: GNU Awk

'''Sudo without password'''

<pre>
$ sudo visudo
</pre>

Add this line at the end (change “tom” to your username):
<pre>tom ALL=(ALL) NOPASSWD: ALL</pre>
Ctrl-X to leave, save your changes, and you're done!

==== Downloading ====
The SDK is available on [https://github.com/lindenis-org github].

We use Repo manage Git repositories. Clone Repo from [https://android.googlesource.com/tools/repo android Git repositories] or other mirrors and install it.
 Chinese developers can install Repo follow these steps:
<pre>
$ git clone http://mirrors.ustc.edu.cn/aosp/git-repo.git ~/.bin/repo
$ echo "export PATH=~/.bin/repo:$PATH" >> ~/.bashrc
$ source ~/.bashrc
</pre>

==== Building ====
===== Setup env =====
*For Lindenis V536 SBC:
*For Lindenis V536 SOM:

===== Build source =====
* Build kernel and rootfs
If you are the first time downloaded the SDK and have not built the SDK before, run the below two commands, then exit and save the configuration at first.
<pre>
$ make menuconfig
</pre>
<pre>
$ make kernel_menuconfig
</pre>
Then make it and wait ...
<pre>
$ make -j8 V=s
</pre>

===== Build image =====
<pre>
$ pack
</pre>

==== Installation ====

== OS ==
=== Overview ===
Lindenis Video OS is the recommended operating system for normal use on Lindenis V536 series boards. Lindenis Video OS is maintained by [http://www.lindeni.com/ Lindenis Tech. Ltd.]. The SDK is hosted on [https://github.com/lindenis-org GitHub].
===== Applications =====
[[File:LindenisVideoOS.png|500px|thumb|Lindenis Video OS Architecture]]
* Lindlive: a low-laternce A/V streaming application powered by Lindenis.
* Lindplayer: a meida player application powered Lindenis.
* Lindcamera: a camera application (supported preview, snapshot and recording) powered by Lindenis.
* ... ...

===== Framewrok =====

* FFindeni: a multimedia framework specialized for low-latency A/V processing built by Lindenis.
* CedarX: a Allwinner official multimedia decoding framework.
* [http://www.minigui.org/ MiniGUI]: a tiny and efficiency open source GUI framework.
* ... ...

===== Libraries =====

* Runtime Libraries: the system basic libraries like libc and so on.
* Libavwrapper: a Lindenis-built library abstracted the hardware operation of the A/V processing.
* [http://ffmpeg.org/ FFmpeg]: an open source software library for recording, converting and streaming audio and video.
* [http://live555.com/ Live555]: an open source software library for streaming audio and video.
* ... ...

===== Linux Kernel =====

* Official version: 4.9

=== System Setup ===

===== Uart =====

===== Camera =====

===== Display =====

===== TouchPanel =====

===== Wifi =====
*sys_config.fex should config as follow:
<pre>
[wlan]
wlan_used = 1
wlan_busnum = 1
;wlan_usbnum = 3
wlan_power = "vcc33-wifi"
wlan_io_regulator = "vcc-pg"
;wlan_en = port:PG11<1><default><default><0>
wlan_regon = port:PG11<1><default><default><0>
wlan_hostwake = port:PL05<6><default><default><0>
</pre>
*make sure CONFIG_BCMDHD is configured when make kernel_menuconfig
<pre>
CONFIG_BCMDHD = m
</pre>
*make sure PACKAGE_ap6255-firmware is configured when make menuconfig
<pre>
PACKAGE_ap6255-firmware = y
</pre>

===== Bluetooth =====

===== Ethernet =====
*sys_config.fex should configured as follow:
<pre>
[gmac0]
gmac0_used = 1
phy-mode = "rgmii"
gmac_rxd3 = port:PE00<3><default><default><default>
gmac_rxd2 = port:PE01<3><default><default><default>
gmac_rxd1 = port:PE02<3><default><default><default>
gmac_rxd0 = port:PE03<3><default><default><default>
gmac_rxck = port:PE04<3><default><default><default>
gmac_rxctl = port:PE05<3><default><default><default>
gmac_clkin = port:PE06<3><default><default><default>
gmac_txd3 = port:PE07<3><default><3><default>
gmac_txd2 = port:PE08<3><default><3><default>
gmac_txd1 = port:PE09<3><default><3><default>
gmac_txd0 = port:PE10<3><default><3><default>
gmac_txck = port:PE11<3><default><3><default>
gmac_txctl = port:PE12<3><default><3><default>
gmac_mdc = port:PE13<3><default><3><default>
gmac_mdio = port:PE14<3><default><3><default>
gmac_ephy25m = port:PE15<3><default><default><default>
phy-rst = port:PE21<1><default><default><0>
gmac-power0 = "vcc-ephy"
gmac-power1 = ""
gmac-power2 = ""
tx-delay = 7
rx-delay = 31
use_ephy25m = 1
</pre>
*make sure CONFIG_SUNXI_GMAC is configured when make kernel_menuconfig
<pre>
CONFIG_SUNXI_GMAC = y
</pre>

===== Keypad =====

===== Audio =====
====== audiocodec ======
*sys_config.fex should configured as follow:
<pre>
[sndcodec]
sndcodec_used = 0x1

[i2s]
i2s_used = 0x1

[codec]
codec_used = 0x1
lineoutvol = 0x1f
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
pa_ctl_level = 0x1
pa_msleep_time = 0xa0
gpio-spk = port:PH10<1><1><default><default>
</pre>

====== i2s ======
*sys_config.fex should configured as follow, and the param should configured accord your device need:
:'''if you i2s1 is used'''
<pre>
[snddaudo0]
snddaudio0_used = 1

[daudio0]
daudio0_used = 1
daudio_master = 4
audio_format = 4
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 0
tx_data_mode = 0
rx_data_mode = 0
</pre>

:'''if you i2s2 is used'''
<pre>
[snddaudo2]
snddaudio2_used = 1

[daudio2]
daudio2_used = 1
daudio_master = 4
audio_format = 1
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 32
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 0
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0
</pre>
*make sure CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO configured when make kernel_menuconfig
<pre>
CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO = y
</pre>

=== Application Demo ===
The application demos powered by Lindenis.

===== Lindlive =====
lindlive is a high performance low latency live streaming library.
lindlive integrate some usefule function modules, such as audio/video capture, encoding and streaming protocol.
So developers can easily implement a live streaming server based on lindenis board.

There are two samples app using lindlive, one is sample_mppsrc_2_livesink and the other is sample_mppsrc_2_ffsink.
The sample source code is located in SDK.

usage:
sample_mppsrc_2_livesink -i [ip] -p [port] -n [name]
-i [ip] is the ip address of the server. If it is not set, the 'ip' default is local ethernet or wifi ip address.
-p [port] is the port of the server. If it is not set, the 'port' default is rtsp port 8554.
-n [name] is the name of live streaming. If it is not set, the 'name' default is 'live'.
All of the arguments are optional.
If sample_mppsrc_2_livesink is correctly running, the server url is 'rtsp://[ip]:[port]/[name]'
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.

===== Lindplayer =====
lindplayer is a high performance media player that can run on lindenis board.
It supports upto 4K@30fps H.264/H.265 video decoder.
It can play a local media file or a media stream from internet.

usage:
lindplayer -u <url> <options>
-u <url> is the media path to be played.
<options> use -live to indicate this is a live video.
such as:
lindplayer -u ./movie.ts
or lindplayer -u http://192.168.1.102/test
or lindplayer -u rtsp://192.168.1.102/test -live

===== Lindcamera =====

Lindenis V536

2020-01-19T09:29:01Z

Xiaoshujun: /* Lindlive */

== Key Features ==
=== Processor core ===
*Dual-Core Cortex A7@1.2GHz
*Neon acceleration, integrated FPU

=== Video Encoding/Decoding Performance ===
*H.264 BP/MP/HP, H.265 Main Profile encoding
*I/P/Dual P frame H.264/H.265 encoding
*MJPEG/JPEG baseline encoding
*Real-time multi-stream H.264/H.265 encoding capability:
**- 3840x2160@30fps+720p@30fps encoding
**- 3840x2160@30fps decoding
*Maximum 8192x8192 resolution for JPEG encoding/decoding
*CBR, VBR modes
*Encoding of eight ROIs

=== Graphics Processing ===
*Supports Lens distortion correction, fisheye and wide angle correction
*Supports 90°、180°、270° picture rotation

=== Professional Image Effects ===
*Maximum performance is 4224x3168@30fps
*Adjustable 3A functions (AE, AWB and AF)
*Supports 2F WDR and Local Tone mapping,supporting highlight suppression and backlight compensation
*Supports bad pixel correction, Lens shading correction
*Supports multi-level 3D denoising, remove motion smear and color noise
*Supports color adjustment, color enhancement
*Supports image dynamic contrast enhance and sharpness enhance
*Supports 4 channels of scaling output from 1/8x to 1x
*OSD overlaying of eight regions before encoding
*Supports image mirroring and flipping

=== Various interfaces ===
*Supports MIPI-CSI2\HiSPi\Sub-LVDS
*Supports BT1120 input/output
*Supports Line-in/Line-out
*Supports Dual-channel differential MIC inputs
*Supports WiFi 802.11ac / BT4.2 (option)

=== Software Support ===
*Linux-4.9

== Target Applications ==
*SDV
*Smart IPC
*Smart Camera
Or you can use it to build:
*A computer
*A streaming server

== Accessories Step-by-Step Guides ==

=== Power Supply ===

* [http://files.lindeni.org/lindenis-v5/accessories/Power-Supply-Brief.pdf 5V 2A Power Supply]

=== HDMI Cable ===

* [http://files.lindeni.org/lindenis-v5/accessories/HDMI-Cable-Brief.pdf 4K HDMI Cable]

=== Camera module ===

* [http://files.lindeni.org/lindenis-v5/accessories/Camera-Module-Brief.pdf 4K Camera Module brief]

=== LCD ===

* [http://files.lindeni.org/lindenis-v5/accessories/LCD-with-CTP-Brief.pdf 5" 720P LCD with CTP brief]

=== Flash module ===

* [http://files.lindeni.org/lindenis-v5/accessories/eMMC-Module-Brief.pdf 8GB eMMC Module brief]

=== WiFi and Bluetooth module ===

* [http://files.lindeni.org/lindenis-v5/accessories/WiFi-Module-Brief.pdf WiFi 802.11ac / BT4.2 Module brief]

== Hardware Specification ==

=== Board Features ===

==== Video Out ====

* HDMI 1.4 Type A, up to 4K@30FPS
* MIPI-DSI, 4 lanes, up to 1080P
* LCD interface

==== Video In ====

* 1 x MIPI-CSI2 - Camera interface, 4 lanes per channel

==== Audio ====
* 3.5mm Line in / out
* 1 x mic
* 1 x dmic

==== Network ====
* 10/100/1000Mbps Ethernet
* WiFi with Bluetooth (optional)

==== Storage ====
* MicroSD Card bootable, support SDHC and SDXC, storage up to 256GB

==== Expansion Ports ====
* Board to Board connector - Flash module interface
* Wi-Fi/BT Module Header - SDIO 3.0 and UART, pitch 2.0mm
* 2x10 pins "Power Supply" GPIO Header: vbat, aldo1, bldo1, aldo3
* 4 pins GPIO Header: TWI1
* 2x7 pins "I2S" GPIO Header
* 3 pins GPIO Header: PH4, PH10, GND
* 3 pins GPIO Header: 1xADC
* 4 pins GPIO Header: S-TWI
* VBAT: Battery connector
* Storage: Bootable MicroSD card
* Video out: HDMI 1.4, 4 lanes MIPI-DSI
* Video in: 1 x DVP
* Audio: 3.5mm Line in / out, 1 x mic
* Network: 10/100/1000Mbps Ethernet
* USB: 1 x Micro USB, 2 x USB 2.0

=== Board Information ===
* Board Dimensions: 130mm x 85mm
* Input Power: 5V@2A micro USB connector, 3.7V Li-Ion battery connector
* [http://files.lindeni.org/lindenis-v5/datasheets/lindenis-v536-DIBAN_20191013-map.pdf Lindenis V536 PCB place map]

== Datasheet ==
* [http://files.lindeni.org/lindenis-v5/datasheets/V536-brief-en.pdf Allwinner V536 SOC Brief]
* [http://files.lindeni.org/lindenis-v5/datasheets/OP03-JS1158%20FORESEE_eMMC_NCEMASD9-08G%20SPEC%20A0%2020150701.pdf Foresee eMMC Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/AP6255%20IND%20datasheet_V1.1_12042017.pdf AP6255 Module Spec Sheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/RTL8211F-CG-RealtekMicroelectronics.pdf Ethernet PHY Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/LX50HDI4002-V0.pdf LCD Module Specification]
* [http://files.lindeni.org/lindenis-v5/datasheets/GT911%20Capacitive%20Touch%20Controller%20Datasheet.pdf GOODiX GT911 5-Point Capacitive Touch Controller Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/GL850G%20Datasheet_128.pdf USB 2.0 Hub Controller]

== SDK ==

=== Overview ===

==== Features ====
*Linux kernel 4.9 (official version)
* U-Boot 2014.07
* ARM GCC based cross toolchain
* Integrated build system

==== Main Components ====
==== Layout ====
<pre>
├── build
├── config
├── Config.in
├── dl
├── docs
├── lichee
├── logs
├── Makefile
├── out
├── package
├── prebuilt
├── rules.mk
├── scripts
├── softwinner
├── target
├── toolchain
└── tools
</pre>

=== Download and Build ===
==== System requirements ====
Listed below are the recommended requirements for downloading and building the SDK:
* CPU: x86_64 or better family processor
* Memory: 8GB or higher
* Disk: 10GB free hard disk space
* OS: Ubuntu 14.04 (tested) or higher
* Network: internet connection
==== Linux host setup ====

Ubuntu 14.04

''HINT: later version should also work.''

'''Install prerequisites'''

<pre>
$ sudo dpkg --add-architecture i386
$ sudo apt-get update
$ sudo apt-get install git git-core u-boot-tools qemu qemu-user-static debootstrap lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386 gawk
</pre>

* dpkg --add-architecture i386: support 32bit architecture
* apt-get update: retrieve new lists of packages
* git git-core: manage source code
* u-boot-tools: build kernel image
* qemu qemu-user-static: emulator for arm on host CPU
* debootstrap: for installing a Debian base system
* lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386: for running 32bit tools
* gawk: GNU Awk

'''Sudo without password'''

<pre>
$ sudo visudo
</pre>

Add this line at the end (change “tom” to your username):
<pre>tom ALL=(ALL) NOPASSWD: ALL</pre>
Ctrl-X to leave, save your changes, and you're done!

==== Downloading ====
The SDK is available on [https://github.com/lindenis-org github].

We use Repo manage Git repositories. Clone Repo from [https://android.googlesource.com/tools/repo android Git repositories] or other mirrors and install it.
 Chinese developers can install Repo follow these steps:
<pre>
$ git clone http://mirrors.ustc.edu.cn/aosp/git-repo.git ~/.bin/repo
$ echo "export PATH=~/.bin/repo:$PATH" >> ~/.bashrc
$ source ~/.bashrc
</pre>

==== Building ====
===== Setup env =====
*For Lindenis V536 SBC:
*For Lindenis V536 SOM:

===== Build source =====
* Build kernel and rootfs
If you are the first time downloaded the SDK and have not built the SDK before, run the below two commands, then exit and save the configuration at first.
<pre>
$ make menuconfig
</pre>
<pre>
$ make kernel_menuconfig
</pre>
Then make it and wait ...
<pre>
$ make -j8 V=s
</pre>

===== Build image =====
<pre>
$ pack
</pre>

==== Installation ====

== OS ==
=== Overview ===
Lindenis Video OS is the recommended operating system for normal use on Lindenis V536 series boards. Lindenis Video OS is maintained by [http://www.lindeni.com/ Lindenis Tech. Ltd.]. The SDK is hosted on [https://github.com/lindenis-org GitHub].
===== Applications =====
[[File:LindenisVideoOS.png|500px|thumb|Lindenis Video OS Architecture]]
* Lindlive: a low-laternce A/V streaming application powered by Lindenis.
* Lindplayer: a meida player application powered Lindenis.
* Lindcamera: a camera application (supported preview, snapshot and recording) powered by Lindenis.
* ... ...

===== Framewrok =====

* FFindeni: a multimedia framework specialized for low-latency A/V processing built by Lindenis.
* CedarX: a Allwinner official multimedia decoding framework.
* [http://www.minigui.org/ MiniGUI]: a tiny and efficiency open source GUI framework.
* ... ...

===== Libraries =====

* Runtime Libraries: the system basic libraries like libc and so on.
* Libavwrapper: a Lindenis-built library abstracted the hardware operation of the A/V processing.
* [http://ffmpeg.org/ FFmpeg]: an open source software library for recording, converting and streaming audio and video.
* [http://live555.com/ Live555]: an open source software library for streaming audio and video.
* ... ...

===== Linux Kernel =====

* Official version: 4.9

=== System Setup ===

===== Uart =====

===== Camera =====

===== Display =====

===== TouchPanel =====

===== Wifi =====
*sys_config.fex should config as follow:
<pre>
[wlan]
wlan_used = 1
wlan_busnum = 1
;wlan_usbnum = 3
wlan_power = "vcc33-wifi"
wlan_io_regulator = "vcc-pg"
;wlan_en = port:PG11<1><default><default><0>
wlan_regon = port:PG11<1><default><default><0>
wlan_hostwake = port:PL05<6><default><default><0>
</pre>
*make sure CONFIG_BCMDHD is configured when make kernel_menuconfig
<pre>
CONFIG_BCMDHD = m
</pre>
*make sure PACKAGE_ap6255-firmware is configured when make menuconfig
<pre>
PACKAGE_ap6255-firmware = y
</pre>

===== Bluetooth =====

===== Ethernet =====
*sys_config.fex should configured as follow:
<pre>
[gmac0]
gmac0_used = 1
phy-mode = "rgmii"
gmac_rxd3 = port:PE00<3><default><default><default>
gmac_rxd2 = port:PE01<3><default><default><default>
gmac_rxd1 = port:PE02<3><default><default><default>
gmac_rxd0 = port:PE03<3><default><default><default>
gmac_rxck = port:PE04<3><default><default><default>
gmac_rxctl = port:PE05<3><default><default><default>
gmac_clkin = port:PE06<3><default><default><default>
gmac_txd3 = port:PE07<3><default><3><default>
gmac_txd2 = port:PE08<3><default><3><default>
gmac_txd1 = port:PE09<3><default><3><default>
gmac_txd0 = port:PE10<3><default><3><default>
gmac_txck = port:PE11<3><default><3><default>
gmac_txctl = port:PE12<3><default><3><default>
gmac_mdc = port:PE13<3><default><3><default>
gmac_mdio = port:PE14<3><default><3><default>
gmac_ephy25m = port:PE15<3><default><default><default>
phy-rst = port:PE21<1><default><default><0>
gmac-power0 = "vcc-ephy"
gmac-power1 = ""
gmac-power2 = ""
tx-delay = 7
rx-delay = 31
use_ephy25m = 1
</pre>
*make sure CONFIG_SUNXI_GMAC is configured when make kernel_menuconfig
<pre>
CONFIG_SUNXI_GMAC = y
</pre>

===== Keypad =====

===== Audio =====
====== audiocodec ======
*sys_config.fex should configured as follow:
<pre>
[sndcodec]
sndcodec_used = 0x1

[i2s]
i2s_used = 0x1

[codec]
codec_used = 0x1
lineoutvol = 0x1f
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
pa_ctl_level = 0x1
pa_msleep_time = 0xa0
gpio-spk = port:PH10<1><1><default><default>
</pre>

====== i2s ======
*sys_config.fex should configured as follow, and the param should configured accord your device need:
:'''if you i2s1 is used'''
<pre>
[snddaudo0]
snddaudio0_used = 1

[daudio0]
daudio0_used = 1
daudio_master = 4
audio_format = 4
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 0
tx_data_mode = 0
rx_data_mode = 0
</pre>

:'''if you i2s2 is used'''
<pre>
[snddaudo2]
snddaudio2_used = 1

[daudio2]
daudio2_used = 1
daudio_master = 4
audio_format = 1
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 32
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 0
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0
</pre>
*make sure CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO configured when make kernel_menuconfig
<pre>
CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO = y
</pre>

=== Application Demo ===
The application demos powered by Lindenis.

===== Lindlive =====
lindlive is a high performance low latency live streaming library.
lindlive integrate some usefule function modules, such as audio/video capture, encoding and streaming protocol.
So developers can easily implement a live streaming server based on lindenis board.

There are two samples app using lindlive, one is sample_mppsrc_2_livesink and the other is sample_mppsrc_2_ffsink.
The sample source code is located in SDK.

usage of sample_mppsrc_2_livesink:
sample_mppsrc_2_livesink -i [ip] -p [port] -n [name]
-i [ip] is the ip address of the server. If it is not set, the 'ip' default is local ethernet or wifi ip address.
-p [port] is the port of the server. If it is not set, the 'port' default is rtsp port 8554.
-n [name] is the name of live streaming. If it is not set, the 'name' default is 'live'.
All of the arguments are optional.
If sample_mppsrc_2_livesink is correctly running, the server url is 'rtsp://[ip]:[port]/[name]'
Then it can be played in an player with the url 'rtsp://[ip]:[port]/[name]'.

===== Lindplayer =====
lindplayer is a high performance media player that can run on lindenis board.
It supports upto 4K@30fps H.264/H.265 video decoder.
It can play a local media file or a media stream from internet.

usage:
lindplayer -u <url> <options>
-u <url> is the media path to be played.
<options> use -live to indicate this is a live video.
such as:
lindplayer -u ./movie.ts
or lindplayer -u http://192.168.1.102/test
or lindplayer -u rtsp://192.168.1.102/test -live

===== Lindcamera =====

Lindenis V536

2020-01-19T08:50:01Z

Xiaoshujun: /* Lindplayer */

== Key Features ==
=== Processor core ===
*Dual-Core Cortex A7@1.2GHz
*Neon acceleration, integrated FPU

=== Video Encoding/Decoding Performance ===
*H.264 BP/MP/HP, H.265 Main Profile encoding
*I/P/Dual P frame H.264/H.265 encoding
*MJPEG/JPEG baseline encoding
*Real-time multi-stream H.264/H.265 encoding capability:
**- 3840x2160@30fps+720p@30fps encoding
**- 3840x2160@30fps decoding
*Maximum 8192x8192 resolution for JPEG encoding/decoding
*CBR, VBR modes
*Encoding of eight ROIs

=== Graphics Processing ===
*Supports Lens distortion correction, fisheye and wide angle correction
*Supports 90°、180°、270° picture rotation

=== Professional Image Effects ===
*Maximum performance is 4224x3168@30fps
*Adjustable 3A functions (AE, AWB and AF)
*Supports 2F WDR and Local Tone mapping,supporting highlight suppression and backlight compensation
*Supports bad pixel correction, Lens shading correction
*Supports multi-level 3D denoising, remove motion smear and color noise
*Supports color adjustment, color enhancement
*Supports image dynamic contrast enhance and sharpness enhance
*Supports 4 channels of scaling output from 1/8x to 1x
*OSD overlaying of eight regions before encoding
*Supports image mirroring and flipping

=== Various interfaces ===
*Supports MIPI-CSI2\HiSPi\Sub-LVDS
*Supports BT1120 input/output
*Supports Line-in/Line-out
*Supports Dual-channel differential MIC inputs
*Supports WiFi 802.11ac / BT4.2 (option)

=== Software Support ===
*Linux-4.9

== Target Applications ==
*SDV
*Smart IPC
*Smart Camera
Or you can use it to build:
*A computer
*A streaming server

== Accessories Step-by-Step Guides ==

=== Power Supply ===

* [http://files.lindeni.org/lindenis-v5/accessories/Power-Supply-Brief.pdf 5V 2A Power Supply]

=== HDMI Cable ===

* [http://files.lindeni.org/lindenis-v5/accessories/HDMI-Cable-Brief.pdf 4K HDMI Cable]

=== Camera module ===

* [http://files.lindeni.org/lindenis-v5/accessories/Camera-Module-Brief.pdf 4K Camera Module brief]

=== LCD ===

* [http://files.lindeni.org/lindenis-v5/accessories/LCD-with-CTP-Brief.pdf 5" 720P LCD with CTP brief]

=== Flash module ===

* [http://files.lindeni.org/lindenis-v5/accessories/eMMC-Module-Brief.pdf 8GB eMMC Module brief]

=== WiFi and Bluetooth module ===

* [http://files.lindeni.org/lindenis-v5/accessories/WiFi-Module-Brief.pdf WiFi 802.11ac / BT4.2 Module brief]

== Hardware Specification ==

=== Board Features ===

==== Video Out ====

* HDMI 1.4 Type A, up to 4K@30FPS
* MIPI-DSI, 4 lanes, up to 1080P
* LCD interface

==== Video In ====

* 1 x MIPI-CSI2 - Camera interface, 4 lanes per channel

==== Audio ====
* 3.5mm Line in / out
* 1 x mic
* 1 x dmic

==== Network ====
* 10/100/1000Mbps Ethernet
* WiFi with Bluetooth (optional)

==== Storage ====
* MicroSD Card bootable, support SDHC and SDXC, storage up to 256GB

==== Expansion Ports ====
* Board to Board connector - Flash module interface
* Wi-Fi/BT Module Header - SDIO 3.0 and UART, pitch 2.0mm
* 2x10 pins "Power Supply" GPIO Header: vbat, aldo1, bldo1, aldo3
* 4 pins GPIO Header: TWI1
* 2x7 pins "I2S" GPIO Header
* 3 pins GPIO Header: PH4, PH10, GND
* 3 pins GPIO Header: 1xADC
* 4 pins GPIO Header: S-TWI
* VBAT: Battery connector
* Storage: Bootable MicroSD card
* Video out: HDMI 1.4, 4 lanes MIPI-DSI
* Video in: 1 x DVP
* Audio: 3.5mm Line in / out, 1 x mic
* Network: 10/100/1000Mbps Ethernet
* USB: 1 x Micro USB, 2 x USB 2.0

=== Board Information ===
* Board Dimensions: 130mm x 85mm
* Input Power: 5V@2A micro USB connector, 3.7V Li-Ion battery connector
* [http://files.lindeni.org/lindenis-v5/datasheets/lindenis-v536-DIBAN_20191013-map.pdf Lindenis V536 PCB place map]

== Datasheet ==
* [http://files.lindeni.org/lindenis-v5/datasheets/V536-brief-en.pdf Allwinner V536 SOC Brief]
* [http://files.lindeni.org/lindenis-v5/datasheets/OP03-JS1158%20FORESEE_eMMC_NCEMASD9-08G%20SPEC%20A0%2020150701.pdf Foresee eMMC Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/AP6255%20IND%20datasheet_V1.1_12042017.pdf AP6255 Module Spec Sheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/RTL8211F-CG-RealtekMicroelectronics.pdf Ethernet PHY Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/LX50HDI4002-V0.pdf LCD Module Specification]
* [http://files.lindeni.org/lindenis-v5/datasheets/GT911%20Capacitive%20Touch%20Controller%20Datasheet.pdf GOODiX GT911 5-Point Capacitive Touch Controller Datasheet]
* [http://files.lindeni.org/lindenis-v5/datasheets/GL850G%20Datasheet_128.pdf USB 2.0 Hub Controller]

== SDK ==

=== Overview ===

==== Features ====
*Linux kernel 4.9 (official version)
* U-Boot 2014.07
* ARM GCC based cross toolchain
* Integrated build system

==== Main Components ====
==== Layout ====
<pre>
├── build
├── config
├── Config.in
├── dl
├── docs
├── lichee
├── logs
├── Makefile
├── out
├── package
├── prebuilt
├── rules.mk
├── scripts
├── softwinner
├── target
├── toolchain
└── tools
</pre>

=== Download and Build ===
==== System requirements ====
Listed below are the recommended requirements for downloading and building the SDK:
* CPU: x86_64 or better family processor
* Memory: 8GB or higher
* Disk: 10GB free hard disk space
* OS: Ubuntu 14.04 (tested) or higher
* Network: internet connection
==== Linux host setup ====

Ubuntu 14.04

''HINT: later version should also work.''

'''Install prerequisites'''

<pre>
$ sudo dpkg --add-architecture i386
$ sudo apt-get update
$ sudo apt-get install git git-core u-boot-tools qemu qemu-user-static debootstrap lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386 gawk
</pre>

* dpkg --add-architecture i386: support 32bit architecture
* apt-get update: retrieve new lists of packages
* git git-core: manage source code
* u-boot-tools: build kernel image
* qemu qemu-user-static: emulator for arm on host CPU
* debootstrap: for installing a Debian base system
* lib32z1 lib32ncurses5 libc6:i386 libstdc++6:i386: for running 32bit tools
* gawk: GNU Awk

'''Sudo without password'''

<pre>
$ sudo visudo
</pre>

Add this line at the end (change “tom” to your username):
<pre>tom ALL=(ALL) NOPASSWD: ALL</pre>
Ctrl-X to leave, save your changes, and you're done!

==== Downloading ====
The SDK is available on [https://github.com/lindenis-org github].

We use Repo manage Git repositories. Clone Repo from [https://android.googlesource.com/tools/repo android Git repositories] or other mirrors and install it.
 Chinese developers can install Repo follow these steps:
<pre>
$ git clone http://mirrors.ustc.edu.cn/aosp/git-repo.git ~/.bin/repo
$ echo "export PATH=~/.bin/repo:$PATH" >> ~/.bashrc
$ source ~/.bashrc
</pre>

==== Building ====
===== Setup env =====
*For Lindenis V536 SBC:
*For Lindenis V536 SOM:

===== Build source =====
* Build kernel and rootfs
If you are the first time downloaded the SDK and have not built the SDK before, run the below two commands, then exit and save the configuration at first.
<pre>
$ make menuconfig
</pre>
<pre>
$ make kernel_menuconfig
</pre>
Then make it and wait ...
<pre>
$ make -j8 V=s
</pre>

===== Build image =====
<pre>
$ pack
</pre>

==== Installation ====

== OS ==
=== Overview ===
Lindenis Video OS is the recommended operating system for normal use on Lindenis V536 series boards. Lindenis Video OS is maintained by [http://www.lindeni.com/ Lindenis Tech. Ltd.]. The SDK is hosted on [https://github.com/lindenis-org GitHub].
===== Applications =====
[[File:LindenisVideoOS.png|500px|thumb|Lindenis Video OS Architecture]]
* Lindlive: a low-laternce A/V streaming application powered by Lindenis.
* Lindplayer: a meida player application powered Lindenis.
* Lindcamera: a camera application (supported preview, snapshot and recording) powered by Lindenis.
* ... ...

===== Framewrok =====

* FFindeni: a multimedia framework specialized for low-latency A/V processing built by Lindenis.
* CedarX: a Allwinner official multimedia decoding framework.
* [http://www.minigui.org/ MiniGUI]: a tiny and efficiency open source GUI framework.
* ... ...

===== Libraries =====

* Runtime Libraries: the system basic libraries like libc and so on.
* Libavwrapper: a Lindenis-built library abstracted the hardware operation of the A/V processing.
* [http://ffmpeg.org/ FFmpeg]: an open source software library for recording, converting and streaming audio and video.
* [http://live555.com/ Live555]: an open source software library for streaming audio and video.
* ... ...

===== Linux Kernel =====

* Official version: 4.9

=== System Setup ===

===== Uart =====

===== Camera =====

===== Display =====

===== TouchPanel =====

===== Wifi =====
*sys_config.fex should config as follow:
<pre>
[wlan]
wlan_used = 1
wlan_busnum = 1
;wlan_usbnum = 3
wlan_power = "vcc33-wifi"
wlan_io_regulator = "vcc-pg"
;wlan_en = port:PG11<1><default><default><0>
wlan_regon = port:PG11<1><default><default><0>
wlan_hostwake = port:PL05<6><default><default><0>
</pre>
*make sure CONFIG_BCMDHD is configured when make kernel_menuconfig
<pre>
CONFIG_BCMDHD = m
</pre>
*make sure PACKAGE_ap6255-firmware is configured when make menuconfig
<pre>
PACKAGE_ap6255-firmware = y
</pre>

===== Bluetooth =====

===== Ethernet =====
*sys_config.fex should configured as follow:
<pre>
[gmac0]
gmac0_used = 1
phy-mode = "rgmii"
gmac_rxd3 = port:PE00<3><default><default><default>
gmac_rxd2 = port:PE01<3><default><default><default>
gmac_rxd1 = port:PE02<3><default><default><default>
gmac_rxd0 = port:PE03<3><default><default><default>
gmac_rxck = port:PE04<3><default><default><default>
gmac_rxctl = port:PE05<3><default><default><default>
gmac_clkin = port:PE06<3><default><default><default>
gmac_txd3 = port:PE07<3><default><3><default>
gmac_txd2 = port:PE08<3><default><3><default>
gmac_txd1 = port:PE09<3><default><3><default>
gmac_txd0 = port:PE10<3><default><3><default>
gmac_txck = port:PE11<3><default><3><default>
gmac_txctl = port:PE12<3><default><3><default>
gmac_mdc = port:PE13<3><default><3><default>
gmac_mdio = port:PE14<3><default><3><default>
gmac_ephy25m = port:PE15<3><default><default><default>
phy-rst = port:PE21<1><default><default><0>
gmac-power0 = "vcc-ephy"
gmac-power1 = ""
gmac-power2 = ""
tx-delay = 7
rx-delay = 31
use_ephy25m = 1
</pre>
*make sure CONFIG_SUNXI_GMAC is configured when make kernel_menuconfig
<pre>
CONFIG_SUNXI_GMAC = y
</pre>

===== Keypad =====

===== Audio =====
====== audiocodec ======
*sys_config.fex should configured as follow:
<pre>
[sndcodec]
sndcodec_used = 0x1

[i2s]
i2s_used = 0x1

[codec]
codec_used = 0x1
lineoutvol = 0x1f
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
pa_ctl_level = 0x1
pa_msleep_time = 0xa0
gpio-spk = port:PH10<1><1><default><default>
</pre>

====== i2s ======
*sys_config.fex should configured as follow, and the param should configured accord your device need:
:'''if you i2s1 is used'''
<pre>
[snddaudo0]
snddaudio0_used = 1

[daudio0]
daudio0_used = 1
daudio_master = 4
audio_format = 4
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 0
tx_data_mode = 0
rx_data_mode = 0
</pre>

:'''if you i2s2 is used'''
<pre>
[snddaudo2]
snddaudio2_used = 1

[daudio2]
daudio2_used = 1
daudio_master = 4
audio_format = 1
signal_inversion = 1
slot_width_select = 32
pcm_lrck_period = 32
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 0
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0
</pre>
*make sure CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO configured when make kernel_menuconfig
<pre>
CONFIG_SND_SUNXI_SOC_SUNXI_DAUDIO = y
</pre>

=== Application Demo ===
The application demos powered by Lindenis.

===== Lindlive =====

===== Lindplayer =====
lindplayer is a high performance media player that can run on lindenis board.
It supports upto 4K@30fps H.264/H.265 video decoder.
It can play a local media file or a media stream from internet.

usage:
lindplayer -u <url> <options>
-u <url> is the media path to be played.
<options> use -live to indicate this is a live video.
such as:
lindplayer -u ./movie.ts
or lindplayer -u http://192.168.1.102/test
or lindplayer -u rtsp://192.168.1.102/test -live

===== Lindcamera =====

Linbian Usage Guide

2019-04-11T08:51:19Z

Xiaoshujun: /* Test result */

[[zh:Linbian使用指南]]
== Terminal ==

On Linbian OS, the default terminal application is LXTerminal.

[[File:Lxterminal.png|frameless]]

You can open it from '''Application Menu''' -> '''System Tools'''.

== Camera Module ==
===download source code from github===
*ldcam developed base on gstreamer
:git clone https://github.com/lindenis-org/ldcam-gst.git
===compile===
*compile on v5 board===
::you can execute "make" directly
*compile on your own env
::you should create the Makefile by yourself
===user commd===
:you can use "./ldcam -?" or "./ldcam --help" to get the cmd instructions

== Webcams ==

== Gstreamer ==
=== Camera source ===
*'''lindeniv4l2src: Video (video4linux2) Source''' 
Use for CSI Camera 
Example: 
sudo gst-launch-1.0 lindeniv4l2src device=/dev/video1 ! video/x-raw,width=1920,height=1080,format=I420 ! videoconvert ! sunxifbsink video-memory=24

=== Omx hardware H.264 decoder and encoder ===
*'''omxh264dec: OpenMAX H.264 Video Decoder''' 
Example: 
sudo gst-launch-1.0 filesrc location=1c.mp4 ! qtdemux name=demux demux.video_0 ! queue ! h264parse ! omxh264dec ! videoconvert ! sunxifbsink

*'''omxh264videoenc: OpenMAX H.264 Video Encoder''' 
Example: 
sudo gst-launch-1.0 lindeniv4l2src device=/dev/video1 ! video/x-raw,width=1920,height=1080,format=I420 ! videoconvert ! omxh264videoenc target-bitrate=5000000 ! mpegtsmux ! filesink location=1.ts

=== Display sink ===
*'''sunxifbsink: Accelerated console framebuffer video sink for sunxi-based devices''' 
Example: 
sudo gst-launch-1.0 -v videotestsrc pattern=ball name=left ! sunxifbsink

== Play Video ==

== Play Audio ==

== Python ==

== GPIO ==

== MPP ==

MPP is the media process platform of Allwinner V5, including following components.
* system control, API family: AW_MPI_SYS
: This component deal with the media hardware initialization, other components initialization and component state management and etc.
* video input, API family: AW_MPI_VI
* video output, API family: AW_MPI_VO
* image stitch engine, API family: AW_MPI_ISE
* video encode, API family: AW_MPI_VENC
* video decode, API family: AW_MPI_VDEC
* mux, API family: AW_MPI_MUX
* demux, API family: AW_MPI_DEMUX
* audio input, API family: AW_MPI_AI
* audio output, API family: AW_MPI_AO
* audio endode, API family: AW_MPI_AENC
* audio output, API family: AW_MPI_AOUT
* Region, API family: AW_MPI_RGN

=== Allwinner official documents ===
* MPP Application Development Reference Manual, [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/AW%20IPC%e5%aa%92%e4%bd%93%e5%a4%84%e7%90%86%e8%bd%af%e4%bb%b6%e5%bc%80%e5%8f%91%e5%8f%82%e8%80%83.pdf Chinese version], [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/AW_MPP_IPC_Media_Processing_Software_Development_Reference.pdf English version].
* ISP Module User Guide, [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/MPP_ISP%20%e6%a8%a1%e5%9d%97%e7%94%a8%e6%88%b7%e6%8c%87%e5%8d%97.pdf Chinese version], [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/MPP_ISP%20Development%20User%20Guide.pdf English version].
* EVE Application Development Reference Manual, [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/EVE%e5%ba%94%e7%94%a8API%e5%8f%82%e8%80%83%e6%89%8b%e5%86%8c.pdf Chinese version], [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/EVE%c2%a0Application%c2%a0API%c2%a0Reference%c2%a0Manual_%e5%85%ad%e7%82%b9%e7%a7%91%e6%8a%80.pdf English version].
* Human Counting Application Development Reference Manual, [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/AIE_CVE%e4%ba%ba%e5%91%98%e8%ae%a1%e6%95%b0API%e5%8f%82%e8%80%83%e6%89%8b%e5%86%8c.pdf Chinese version]
* Motion Detection Application Development Reference Manual, [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/AIE_CVE%e8%bf%90%e5%8a%a8%e7%9b%ae%e6%a0%87%e8%af%86%e5%88%ab%e7%ae%97%e6%b3%95API%e5%8f%82%e8%80%83%e6%89%8b%e5%86%8c.pdf Chinese version]
* Binocular depth of field (DOF) Application Development Reference Manual, [http://files.lindeni.org/lindenis-v5/documents/soft_design/MPP/AIE_CVE%e5%8f%8c%e7%9b%ae%e6%b7%b1%e5%ba%a6%e4%bf%a1%e6%81%af%e7%ae%97%e6%b3%95API%e5%8f%82%e8%80%83%e6%89%8b%e5%86%8c.pdf Chinese version]

=== Samples ===

Please refer to [[#Demo_programs | Demo programs]].

== Demo programs ==

Allwinner release a series of MPP samples. You can download from [https://github.com/lindenis-org/mpp_sample Github].
<pre>
$ git clone https://github.com/lindenis-org/mpp_sample ~/mpp_sample
</pre>

After downloading, You will get the following directory.
<pre>
app/
Makefile.param
README.md
sample_adec/
sample_aenc/
sample_ai/
......
</pre>
'''There is a instruction name readme.txt in every sample, you should read the document first when you running the sample'''

'''And then you can know how to config the sample, some sample needed be configured,maybe config file is sample_xxx.conf.'''

'''app/''' includes a set of MPP samples with a command line based menu. '''sample_xxx/''' is a separate sample of the scene. Root privileges is required when run these sample. e.g.
<pre>
$ sudo ./app/release/app_mpp_sample

***************************************************************
1 : vi+(venc+rtsp)+vo
2 : vi+(venc+rtsp)
3 : vi+vo
4 : vi+ise+(venc+rtsp)+vo
5 : [vi+venc+vo]+[ai+aenc+ao]+rtsp
6 : vi->yuv+venc+rtsp
7 : vi+venc+mux
8 : vi+(venc+mux)+vo
9 : demux+vdec+vo
10 : ai+aenc+mux+ao
11 : demux+adec+ao
12 : Quit
***************************************************************
Please choice 1~12 num:
</pre>

=== RTSP ===

==== Location ====

app_mpp_sample

==== Build ====

<pre>
$ cd ~/mpp_sample/app
$ make
</pre>

==== Running ====

<pre>
$ sudo ./release/app_mpp_sample
</pre>
There will shows the following message when you execultive the cmd, and type the num according the menu.
<pre>
***************************************************************
1 : vi+(venc+rtsp)+vo
2 : vi+(venc+rtsp)
3 : vi+vo
4 : vi+ise+(venc+rtsp)+vo
5 : [vi+venc+vo]+[ai+aenc+ao]+rtsp
6 : vi->yuv+venc+rtsp
7 : vi+venc+mux
8 : vi+(venc+mux)+vo
9 : demux+vdec+vo
10 : ai+aenc+mux+ao
11 : demux+adec+ao
12 : Quit
***************************************************************
Please choice 1~12 num: 1

***************************************************************
1 : Set VI+VENC scene (Resolution, default:4K@25fps+720P@25fps)
2 : Set VENC Payload Type (H264/H265, default:H264)
3 : Set VENC RC Mode (CBR/VBR/FIXQP, default:CBR)
4 : Set VENC Profile (BL/MP/HP, default:Main Profile)
5 : Set VENC rotate (0/90/180/270, default:rotate_0)
6 : Save confige and run this sample
***************************************************************
Please choice 1~6 num: 1

***************** Choice VI+VENC scene **************************
[0]:VI_4K@30fps + VENC(4K@30fps+VGA@30fps)
[1]:VI_4K@25fps + VENC(4K@25fps+720P@25fps) [default]
[2]:VI_2K@30fps + VENC(2K@30fps+720P@30fps)
[3]:VI_1080P@30fps + VENC(1080P@30fps+720P@30fps)
[4]:VI_2880x2160@30fps + VENC(2880x2160@30fps+1080P@30fps)
[5]:VI_2592x1944@30fps + VENC(2592x1944@30fps+1080P@30fps)
Please choose VI+VENC scene ID 0~3 or (q-Quit): 1

***************************************************************
1 : Set VI+VENC scene (Resolution, default:4K@25fps+720P@25fps)
2 : Set VENC Payload Type (H264/H265, default:H264)
3 : Set VENC RC Mode (CBR/VBR/FIXQP, default:CBR)
4 : Set VENC Profile (BL/MP/HP, default:Main Profile)
5 : Set VENC rotate (0/90/180/270, default:rotate_0)
6 : Save confige and run this sample
***************************************************************
Please choice 1~6 num: 6
</pre>

==== Test result ====
[[File:Rtsp1.jpg|frameless]]

*You can see that the two remote device can get the data at the same time

*There are two output data channel, you can get 720p from channel1 and 4K data from channel0

*Tt also can be viewed by mobile phone, a simple IPC mode.

=== Dual Camera ===

==== Location ====

sample_virvi2ise2vo

==== Build ====

<pre>
$ cd ~/mpp_sample/sample_virvi2ise2vo
$ make
</pre>

==== Running ====

<pre>
$ sudo ./sample_virvi2ise2vo -path sample_virvi2ise2vo.conf
</pre>

==== Test result ====
[[File:Dual camera.jpg|frameless]]

*Two ISP can work at the same time

*And each one can send 4K 30fps data out when you preview the picture

*Device can support 4K 15fps encode when two ISP work at the same time

=== Face detection ===

Face detection based on EVE.

==== Location ====

sample_face_detect

==== Build ====

<pre>
$ cd ~/mpp_sample/sample_face_detect
$ make
</pre>

==== Running ====

<pre>
$ sudo ./sample_face_detect
</pre>

The picture of face crop and store at '''./pic''' directory when detected.

==== Test result ====
[[File:Face detect.jpg|frameless]]

*Support face detect which the data source minmum pixels is 20

*Support face detection and tracing at the same time, the maximum number is 16

*The maximum detect face number is 128

=== Motion detection ===

Motion detection based on CVE.

==== Location ====

sample_AILib/sample_vi2MOD

==== Build ====

<pre>
$ cd ~/mpp_sample/sample_AILib/sample_vi2MOD
$ make
</pre>

==== Running ====

<pre>
$ sudo ./sample_vi2MOD -path sample_vi2MOD.conf
</pre>

The information of detected target was stored at ./DTCAResult.bin .

=== Human counting ===

Hunman counting based on CVE.

==== Location ====

sample_AILib/sample_vi2HCNT

==== Build ====

<pre>
$ cd ~/mpp_sample/sample_AILib/sample_vi2HCNT
$ make
</pre>

==== Running ====

<pre>
$ sudo ./sample_vi2HCNT -path sample_vi2HCNT.conf
</pre>

The information of detected target was stored at ./HCNTResult.bin .

=== VLPR ===

VLPR based on CVE.

==== Location ====

sample_AILib/sample_vi2VLPR

==== Build ====

<pre>
$ cd ~/mpp_sample/sample_AILib/sample_vi2VLPR
$ make
</pre>

==== Running ====

<pre>
$ sudo ./sample_vi2VLPR -path sample_vi2VLPR.conf
</pre>

The information of detected vehicle license plate was stored at ./VLPRResult.bin .

=== Binocular depth information image ===

BDII based on CVE.

==== Location ====

sample_AILib/sample_BDII

==== Build ====

<pre>
$ cd ~/mpp_sample/sample_AILib/sample_vi2BDII
$ make
</pre>

==== Running ====

<pre>
$ sudo ./sample_vi2BDII -path sample_vi2BDII.conf
</pre>

The output is a 8bit-gray-scale picture, stored at ./BDIIResult.bin .

=== OpenCV ===

sample_virvi2opencv2vo 
OpenCV version 4.0.1 
This is a simple sample for motion detection via opencv. 
When running this sample, if the picture captured by the camera is still, it will be black screen. If there is a moving object, the outline of the moving object will be displayed. When the mean difference of the real-time image frame difference is greater than the sensitivity value, the following printing appears, indicating that there is a significant change in the image or something is moving.

Something is moving! mean_diff:10 
Something is moving! mean_diff:70 
Something is moving! mean_diff:94 
Something is moving! mean_diff:120 
Something is moving! mean_diff:362 
Something is moving! mean_diff:34 
Something is moving! mean_diff:30 

==== Location ====
sample_virvi2opencv2vo 

==== Build ====

<pre>
$ cd ~/mpp_sample/sample_virvi2opencv2vo
$ make
</pre>

==== Running ====

<pre>
$ sudo ./sample_virvi2opencv2vo -path ./sample_virvi2opencv2vo.conf
</pre>

You can change the conf in the sample_virvi2opencv2vo.conf
# auto_test_count : test times
# get_frame_count : number of frame in one time test
# dev number: video node
# src_width * src_height:720p/1080p;
# src_frame_rate: 25
# pic_format is nv21
# enable_disp_color: 0 disable, 1 enable
# moving_detect_sensitivity >=1 , 1 is most sensitive

==== Test result ====
[[File:Black Screen.jpg|thumb|left]]
[[File:Something is moving.jpg|thumb|left]]