偉洪隨想

This is my first exercise learning OpenGL 2.0 ES in Android.  I would like to share my experience of integrating with SensorManager to give ...

For inter-process communication, one of the tools is message queue.  Some tutorial can be found in  tutorialspoint I am an old fashion guy a...

I still remember the day I started to make an android app for my mother-in-law to listen to internet radio because the place she lived recei...

Recently, I revived some camera programming on my old Raspberry Pi 3 (see  link ).  Since it generates many YUV (actually YUV420) image form...

 To make further supplementary notes of my previous post  Jottings on Raspberry Pi mmal programming my original idea is to have real time ma...

Reference:  Multi-Media Abstraction Layer (MMAL). Draft Version 0.1 MMAL entities components ports buffer component use mmal_component_creat...

#include <stdio.h> typedef struct sub_struct { int field1; int field2; int field3; } SUB_STRUCT; typedef struct my_struct { SUB_STRUCT...

  I have no formal Computer Science background. Most of my computer knowledge are acquired after graduation. Especially about encryption ...

由於終於安裝了家居寬頻，所以多聽咗youtube（真喺聽，唔喺睇），我用的裝置是一部android手機接駁藍芽音箱。 但越聽越多很花時間 (youtube真喺好addictive!) 跟住有人話其實是用快速1.5至2倍速度聽youtube。坦白講，我對聲效的認識仍停留在n年...

疫情影響了很多宗教活動，佛教也不例外，目前法師講經/開示、 法會、佛學課程、禪修甚至義工們的互動，很多都改以「Zoom」 遙距式舉行。 然而，靠「Zoom」弘法， 對傳訊和接收雙方的要求都大幅地提高了— 我們準備好了嗎？ 不少機構只是把原來的課程／開示設計原封不動地改為網上直播，...