AMLogic Category - Page 10 of 96 - CNX Software

May 23, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Linux 5.18 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.18 is out! Linus Torvalds has just announced the release on lkml: No unexpected nasty surprises this last week, so here we go with the 5.18 release right on schedule. That obviously means that the merge window for 5.19 will open tomorrow, and I already have a few pull requests pending. Thank you everybody. I’d still like people to run boring old plain 5.18 just to check, before we start with the excitement of all the new features for the merge window. The full shortlog for the last week is below, and nothing really odd stands out. The diffstat looks a bit funny – unusually we have parsic architecture patches being a big part of it due to some last-minute cache flushing fixes, but that is probably more indicative of everything else being pretty small. So outside of the parisc fixes, there’s random driver updates (mellanox mlx5 stands out, […]

May 22, 2022 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

Linux hardware video encoding on Amlogic A311D2 processor

amlogic a311d2 h265 hardware video encoding sample

I’ve spent a bit more time with Ubuntu 22.04 on Khadas VIM4 Amogic A311D2 SBC, and while the performance is generally good features like 3D graphics acceleration and hardware video decoding are missing. But I was pleased to see a Linux hardware video encoding section in the Wiki, as it’s not something we often see supported early on. So I’ve given it a try… First, we need to make a video in NV12 pixel format that’s commonly outputted from cameras. I downloaded a 45-second 1080p H.264 sample video from Linaro, and converted it with ffmpeg:

ffmpeg -i big_buck_bunny_1080p_H264_AAC_25fps_7200K.MP4 -pix_fmt nv12 big_buck_bunny_1080p_H264_AAC_25fps_7200K-nv12.yuv

1	ffmpeg -i big_buck_bunny_1080p_H264_AAC_25fps_7200K.MP4 -pix_fmt nv12 big_buck_bunny_1080p_H264_AAC_25fps_7200K-nv12.yuv

I did this on my laptop. As a raw video, it’s pretty big with 3.3GB of storage used for a 45-second video:

ls -lh
total 3.3G
-rw-rw-r-- 1 jaufranc jaufranc  40M Aug  5  2011 big_buck_bunny_1080p_H264_AAC_25fps_7200K.MP4
-rw-rw-r-- 1 jaufranc jaufranc 3.3G May 21 15:03 big_buck_bunny_1080p_H264_AAC_25fps_7200K-nv12.yuv

ls -lh

total 3.3G

-rw-rw-r-- 1 jaufranc jaufranc 40M Aug 5 2011 big_buck_bunny_1080p_H264_AAC_25fps_7200K.MP4

-rw-rw-r-- 1 jaufranc jaufranc 3.3G May 21 15:03 big_buck_bunny_1080p_H264_AAC_25fps_7200K-nv12.yuv

Now let’s try to encode the video to H.264 on Khadas VIM4 board using aml_enc_test hardware video encoding sample:

khadas@Khadas:~$ time aml_enc_test 1080p.nv12 dump.h264 1920 1080 30 25 6000000 1125 1 0 2 4
src_url is	: 1080p.nv12 ;
out_url is	: dump.h264 ;
width   is	: 1920 ;
height  is	: 1080 ;
gop     is	: 30 ;
frmrate is	: 25 ;
bitrate is	: 6000000 ;
frm_num is	: 1125 ;
fmt     is	: 1 ;
buf_type is	: 0 ;
num_planes is	: 2 ;
codec is	: 4 ;
codec is H264
Set log level to 4
[initEncParams:177] enc_feature_opts is 0x0 , GopPresetis 0x0 

[SetupEncoderOpenParam:513] GopPreset GOP format (2) period 30 LongTermRef 0

[vdi_sys_sync_inst_param:618] [VDI] fail to deliver sync instance param inst_idx=0

[AML_MultiEncInitialize:1378] VPU instance param sync with open param failed

[SetSequenceInfo:979] Required buffer fb_num=3, src_num=1, actual src=3 1920x1080

Encode End!width:1920

real	0m26.074s
user	0m1.832s
sys	0m4.883s

khadas@Khadas:~$ time aml_enc_test 1080p.nv12 dump.h264 1920 1080 30 25 6000000 1125 1 0 2 4

src_url is : 1080p.nv12 ;

out_url is : dump.h264 ;

width is : 1920 ;

height is : 1080 ;

gop is : 30 ;

frmrate is : 25 ;

bitrate is : 6000000 ;

frm_num is : 1125 ;

fmt is : 1 ;

buf_type is : 0 ;

num_planes is : 2 ;

codec is : 4 ;

codec is H264

Set log level to 4

[initEncParams:177] enc_feature_opts is 0x0 , GopPresetis 0x0

[SetupEncoderOpenParam:513] GopPreset GOP format (2) period 30 LongTermRef 0

[vdi_sys_sync_inst_param:618] [VDI] fail to deliver sync instance param inst_idx=0

[AML_MultiEncInitialize:1378] VPU instance param sync with open param failed

[SetSequenceInfo:979] Required buffer fb_num=3, src_num=1, actual src=3 1920x1080

Encode End!width:1920

real 0m26.074s

user 0m1.832s

sys 0m4.883s

The output explains the parameters used. There are some error messages, […]

May 10, 2022May 10, 2022 by Jean-Luc Aufranc (CNXSoft) - 27 Comments

You can now buy Khadas VIM4 SBC for $199.90

Khadas VIM4 single board computer was first unveiled last October with Amlogic A311D2 octa-core Cortex-A73/A53 processor, 8GB LPDDR4X, but it’s only been launched today, and you can now buy the Khadas VIM4 board for right under $200. It is an upgrade to Khadas VIM3 Pro launched with Amlogiv A311D hexa-core processor a few years ago, and our testing in Android 11 revealed the main benefit may be the upgrade GPU that delivered a 67% boost in 3DMark, but CPU multi-core performance and memory bandwidth will also see some benefits over Amlogic A311D, even against in overclocked systems like ODROID N2+. Here’s a reminder of Khadas VIM4 specifications: SoC – Amlogic A311D2 octa-core processor with 4x Arm Cortex-A73 cores @ up to 2.2 GHz and 4x Cortex A53 cores @ up to 2.0 GHz, Arm Mali-G52 MP(8EE) GPU, (Note: no NPU at this time) System Memory – 8GB LPDDR4X @ 2016 […]

May 7, 2022May 29, 2022 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

Khadas VIM4 Review – Part 2: Android 11 preview and benchmarks

In the first part of Khadas VIM4 review, I showed off the Amlogic A311D2 SBC and some accessories such as the DIY case and M2X expansion board to add M.2 SSD and modem and tried out OOWOW cloud services to install Ubuntu 20.04 server. I’ve now just gotten Fiber Internet at home, so it’s much more practical to test the system, and in the second part of the review, I’ve installed Android 11 on the VIM4 board, checked out settings and system info, and ran some benchmarks. It will be more like a preview since Android 11 is not a consumer-friendly system at this time, and is more designed for people wanting to build their own applications. Installing Android 11 on Khadas VIM4 with OOWOW system Last time around, I used OOWOW system install in the SPI flash on the board to download and install Ubuntu 20.04 server to the […]

April 28, 2022September 17, 2022 by Jean-Luc Aufranc (CNXSoft) - 31 Comments

Khadas VIM4 Review – Part 1: Unboxing, kit assembly, and first boot with OOWOW

Khadas VIM4 is a compact Amlogic A311D2 octa-core Cortex-A73/A53 SBC with 8GB RAM, HDMI input and output, WiFI 6 connectivity, and more. You can check our earlier post for the full specifications. The good news is that it will officially launch on May 10. I’ve also just received a Khadas VIM4 review sample today together with accessories. Today, I’ll start by checking out the board, assembling the kit, and trying out OOWOW services to boot OS from the cloud, before testing available operating systems in more detail in the second part of Khadas VIM4 review a little later. Khadas VIM4 kit unboxing I received everything in a blank cardboard package with several small packages inside. Besides Khadas VIM4 SBC, we’ve got a plastic + metal enclosure with screws and screwdriver, two antennas for WiFi and Bluetooth, a USB Type-C power supply, a USB-C cable, an M.2 expansion board, a short […]

April 28, 2022June 22, 2022 by Jean-Luc Aufranc (CNXSoft) - No Comments

Orbbec Persee+ 3D AI camera runs Ubuntu or Android on Amlogic A311D processor

Orbbec Persee+ is a 3D depth camera running Linux with AI capabilities thanks to Amlogic A311D hexa-core processor equipped with a 5 TOPS NPU (Neural-network Processing Unit). The Persee+ is designed to help researchers, engineers, and hobbyists implement advanced uses for 3D imaging. Orbbec has been around for several years with the first product we covered here being the Orbbec Persee 3D depth camera running Ubuntu or Android on Rockchip RK3288 processor and unveiled in 2015. Last year, the company introduced the Zora P1 Amlogic A311D development board for Orbbec 3D cameras, so in a way, the Orbbec Persee+ is born from the work done on the Persee camera and Zora P1 over the years. Orbbec Persee+ 3D AI camera specifications: SoC – Amlogic A311D hexa-core processor with 4x Cortex-A73 cores, 2x Cortex-A53 cores, Arm Mali-G52MP4 GPU, 5 TOPS NPU System Memory – 4GB RAM Storage – 8GB (specs) / […]

April 14, 2022 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ameriDroid introduces $20 aluminum case for ODROID-N2+ SBC

You may know ameriDroid as a reseller of single board computers and accessories, but the US company has now designed and manufactured its first accessory with an aluminum case for ODROID-N2+ SBC. ameriDroid says the design of their enclosure is based on the metallic blue case found in the Home Assistant Blue gateway also powered by ODROID-N2+ board, and everything was 100% designed and manufactured by ameriDroid in the United States, specifically in Kentucky and California for the R&D, while the factory is located in Ohio. The enclosure has mostly been designed for industrial application, think of a factory floor for instance, so it may not be the prettiest. The company even explains that it is made of unpainted, unfinished aluminum with potentially some minor surface marks from the manufacturing process, but that it could be polished or painted for a better finish. It ships as a kit with an […]

April 8, 2022June 13, 2022 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Amlogic T962E2 quad-core Cortex-A55 TV box board supports 4K HDMI input & output

Amlogic T962E2 is an upgrade to the Amlogic T962E quad-core Cortex-A53 SoC we first found in the Alfawise H96 Mini TV box with both HDMI output and HDMI input ports. The new processor offers similar features but comes with more efficient Cortex-A55 cores, a Mali-G31 MP2 supporting modern Vulkan and OpenGL ES 3.2 APIs, and some other improvements including 4K AV1 video playback. While mostly designed for Smart TVs, I found the Amlogic T962E processor in a TV box board with up to 4GB RAM, 32GB eMMC flash, HDMI 2.1 output, HDMI 2.1 input, Gigabit Ethernet, a wireless module, and allegedly running either Android 8, Android 9, or Android TV. TV box boards specifications: SoC – Amlogic T962E2 quad-core Arm Cortex-A55 processor @ up to 2.0 GHz with Arm Mali-G31 MP2 GPU support OpenGL ES 3.2, Vulkan 1.1 and OpenCL 2.0, 1.2 TOPS AI accelerator, 2x HiFi4 DSP System Memory […]