Yearly Archives: 2013

As a close exam for HCI(Human-computer interaction) course, We are required to submit a curriculum design report about heuristic evaluation. I must admit it was difficult for me to write this paper, having no idea what the standard format or standard protocol for such kind of papers. There once was […]

My Curriculum design report for HCI: Heuristic Evaluation

2013/12/29 in Postgraduate tagged HCI / Heuristic Evaluation / USTC / 人机交互 / 人机界面 / 论文 by Jacky Wei

Easy in this month, I've finished my last course of the post-graduate study in class. And I'm preparing my thesis now. Today I checked my history scores of the courses I've finished. For records, I'll save a copy on my blog here. Only two more courses waiting to be closed […]

My scores of the post-graduate study in USTC for now

2013/12/22 in Postgraduate by Jacky Wei

Issue description: One of my program(A) got binded with an UDP port (20500) which should be assigned to another program(B), here are the steps for trace down where A binded this port: 1. start the process with strace log: strace -f -s 128 -o proxy.strace ./pxyserverapp_redhat 2. Find out the […]

Using strace for troubleshoot an UDP port issue

2013/12/20 in Technical / TechTip中文 tagged strace / systemcall by Jacky Wei

There is no excerpt because this is a protected post.

Protected: A warlord-like foe is not my worry, a pig-like ...

2013/12/15 in Life tagged Family by Jacky Wei

This weekend, we'll have our last course,Electronic information retrieval and utilization. As a close course for the post-graduate students, the major purpuse and the job is to serve the incoming degree thesis. Today, however, lots of the student, as usual, choosed to play truant. Nevertheless, I went. Good to begin […]

One last course of the Postgraduate courses

2013/12/07 in Postgraduate tagged Postgraduate / USTC by Jacky Wei

It was last week when my virtual host service ended. Instead of continue with the virtual host, I decided to upgrade and migrate my blog to a VPS. Here are the major steps you need to do to start a VPS hosting. ——————————————————– LNMP ——————————————————– 1. Installing LNMP to your […]

Migrated my blog to a VPS

2013/11/30 in Website tagged LNMP / Nginx / VPS by Jacky Wei

Due to unknown reason, the course schedule changed again. I’d say this is really bad, cause everyone knows that students applying for On-the-job degree are busy dealing with both work and study, we have schedules, not only for the courses, but only for jobs. We prefer a stable schedule. However, […]

Rest courses arrangement(final version)

2013/11/10 in Postgraduate tagged USTC by Jacky Wei

Great news from Cisco: Cisco will open open-source their H.264 codec, and make H.264 free for use in WebRTC. Here are the details, which came from blogs of Cisco by Rowan Trollope: ——————————————— When it comes to making collaboration technology such as high-definition video open and broadly available, it’s clear […]

Open-Sourced H.264 Removes Barriers to WebRTC

2013/10/31 in News tagged Cisco / H.264 / html5 / Mozilla / Open source / video / WebRTC by Jacky Wei

In the past weeks, I was busy working on my new assignment: H323 protocol stack. After about two monthes hard working, I can finally say that I almost made it, which means I can figure out the reasons of most of the remained bugs/defects, and can resolve them in time […]

October 2013:Reputation comes from the company you keep

2013/10/29 in Life tagged Essay by Jacky Wei

The old version of RTSPPlayer was using ffmpeg + SurfaceView + RGB565 mode to decode and render the video. However this implement is definitely a sucked one, especially when watch high quality videos. So I made some change for it. And the new solution is HW decode + GLSurfaceView + […]

RTSPPlayer update: Supports hardware decode and render the video with ...

2013/10/26 in RTSPPlayer tagged OpenGL ES / RTSPPlayer by Jacky Wei

About Phabricator, just like what said in Phabricator.org: Phabricator is a collection of open source web applications that help software companies build better software. My task here is setup Phabricator on a brand new PC. Target OS: Ubuntu 12.04 32 bit Target PC: Dell Opmix 380 Here we go.

Installation phabricator on Ubuntu 12.04

2013/09/29 in Technical by Jacky Wei

—————————————- Step # 1: Install BIND —————————————- First you need to install BIND server. Code: $ sudo apt-get install bind9 —————————————- Step # 2: Define rg4.net domain: —————————————- You need to add rg4.net domain to bind configuration file /etc/bind/named.conf.local Open this file and append following text (zone and reverse zone […]

How to setup name server for domain called rg4.net.

2013/09/29 in Website by Jacky Wei

Last Wendsday, as usually, I could not fall into sleep at night before two and half AM at Fridays. When I got up at morning, about seven, I felt like I’ve got a cold, a bad one, however I thought I may get through it, because this happens. However, when […]

Had a fever: Prescriptions in China

2013/09/08 in Life tagged Doctor in china / Hospital by Jacky Wei

This is a guide for analysis H.245 terminalCapabilitySet and figure out does the terminal supports AAC LC or AAC LD? First capture the call and it's communication packages, KDV1000-HUAWEI.pcap. Open KDV1000-HUAWEI.pcap with wireshark. Filter the KDV1000-HUAWEI.pcap with H225||H245 Locate & expand the terminalCapabilitySet Find the items from capabilityTable which capabilityIdentifier […]

Does your H323 terminal support AAC LC or AAC LD?

2013/09/02 in Technical tagged AAC / H245 / H323 by Jacky Wei

After went through the hottest summer ever in Shanghai, we finally can have a cool day in this weekend. However, lots of things changed/happened in this hottest season. First, Jane, my niece, went back to hometown right after spent her birthday, she said, it’s too hot. A few days later, […]

August 2013: A time for change

2013/09/01 in Life tagged Essay by Jacky Wei