Eric Tsai

Compro E900F配ComproDTV 4.2.3.4的測試

Thu, 12 Jun 2008 14:59:42 GMT

於Vista X64上，1數位+1類比的測試。硬體我很滿意，但是軟體還有很大的改進空間。用硬壓的CPU使用率果然很低(E6550 + 8500GT with latest driver)。

數位電視大家都一樣，所以看看有線電視的畫質(使用預設設定)：

如果要搭Windows Media Center用的話，由於Media Center只能設定其中一種訊號類型，且不知道為什麼有時候會先抓Tuner 2，所以可能需要把Media Center要看的那種訊號接在Tuner 2的位置，不然Media Center的Live TV會顯示錯誤訊息。
另外我無意間發現一個祕技，不用進入選項設定就可以切換預設的Tuner。只要將另一個Tuner的電視畫面開在新的子視窗中，然後在子視窗的畫面上用滑鼠左鍵點兩下，母子視窗的畫面內容就會交換，此時也會順便更改預設的Tuner。

如果覺得類比電視的畫面有點糊，我建議可以把"去除交錯運算等級"設為0，不過這樣做會有因交錯式畫面而在移動物體邊緣產生毛邊的現象。但是在我的環境下我覺得只要設為1，畫面就會明顯糊很多，所以我選擇接受毛邊。

缺點(有些跟E900F無相依關係，是ComproDTV 4本來就存在的問題)，並附上康博客服的回應：

主畫面設為顯示數位電視時程式反應不順，很多動作都會頓住幾秒。例如滑鼠左鍵按住持續移動畫面，移動個五秒十秒就會頓一下。開啟右鍵選單也常常會頓，在選項畫面中改設定也頓的很嚴重。發生這種問題的時候，CPU使用率並沒有突然增加。 H900搭配tdnj釋出的ComproDTV 4.2.x.x (http://blog.pixnet.net/tdnj/post/12804177)或是主畫面設為顯示有線電視則沒這個問題。不管主畫面顯示哪種訊號，按下Alt+F4想關閉程式是都要等約六秒鐘才會關掉。
類比電視錄影無法用MPEG4硬壓會出錯(http://www.pixnet.net/photo/fa18e/92735349)。
此問題已修正(http://www.comprousa.com/tw/download/e900.html)，解壓縮後以系統管理員身分執行即可。
不明情況下類比電視會只有聲音沒畫面。開始錄影時就會有畫面，停止錄影後又會沒畫面。啟用"Preview TV by Hardware Encoding"後也會有畫面，將之停用可能又會沒畫面，多重複幾次，有機會讓類比電視為持有畫面的狀態。
Response: 此問題目前我們正在進行測試,初步看來並無問題,但我們將陸續新增一些軟體行為的測試,以便找出問題之原因並改善
子視窗的功能太不齊全：
- 子視窗的右鍵功能表功能太貧乏，只能上一台下一台慢慢轉，至少應提供頻道列表及音軌設定。
- 控制面板只能用於主畫面，應該想辦法顯示更多子畫面節目的相關資訊，目前面板只能顯示主畫面節目的資訊。
- 母子視窗最好要可以分別focus，根據目前的focus來判斷鍵盤按鍵要傳給哪個畫面，用鍵盤操作總是比較快速。控制面板即可顯示目前獲得focus的視窗的節目資訊。
- 子視窗中的畫面無法用使用右鍵選擇局部範圍放大。
- 子視窗中的數位電視頻道沒有EPG功能。
Response: 關於使用介面和軟體功能的部分,我們會將您的建議列入考量,讓產品往更直覺化和容易使用的方向發展
選項設定畫面應重新設計，讓數位及類比的項目可以同時設定，且設定時不能影響節目觀看。
目前只能依據根據選項－頻道裡面所選的訊號類型做設定。要更改另一種訊號的設定必須先在選項－頻道更改訊號類型(做這個動作超級慢.......)並確定後重新進入選項畫面才能看到該訊號類型特有的設定，而且此動作會影響到目前正在收看的節目。訊號類型從數位電視改成有線電視的時候，聲音都會自動變成單聲道，亮度對比等設定有時也會跑掉(比較下面兩張圖就知道，我根本沒去動它就自己變了)，必須手動恢復預設值。若類比電視是開在子畫面中的話，根本無法確定目前是用單聲道或雙聲道。
Response: 關於使用介面和軟體功能的部分,我們會將您的建議列入考量,讓產品往更直覺化和容易使用的方向發展
數位電視錄影無法使用使用MPEG2之外的編碼器，不知道是不是我誤解了這張卡的規格。
Response: 數位電視訊號經電視卡處理後已是mpeg格式,ComproDTV並無將mpeg2即時轉檔的功能我們已知市面上有少數之電視軟體有此功能,但由於一些硬體或軟體的限制,邊錄邊轉檔的畫質通常不好
MPEG4硬壓是用DivX，而非我期待的H.264。
Response: 由於晶片規格之限制,mpeg4硬壓只能使用DivX
硬壓的設定介面可自訂bitrate，但實際上沒有作用，自訂bitrate只有用軟壓的時候對錄影結果才有影響。MPEG4硬壓有問題，畫質明顯較MPEG2硬壓差，另外跟我平常用H.264壓數位電視相比，bitrate用2Mbps畫面就已經很好了，MPEG4硬壓的bitrate約是3Mbps，畫質卻明顯較差。Interlace video選項也對MPEG2/MPEG4硬壓無效，只對軟壓有效。
Response: 關於Bitrate的問題,我們已安排相關測試以便釐清問題之所在,若為軟體問題則將在新版軟體中修正。由於硬體功能限制,Interlace video選項對於mpeg2,4硬壓無效
若勾選"隱藏邊框"，母子畫面就注定連在一起了。因為子畫面必須按住上方邊框才能拖離母畫面。
Response: 這屬於軟體的bug,我們將會修正這些問題
要停止錄影時若是處於靜音狀態，靜音會暫時失效，然後才又恢復靜音。
Response: 這屬於軟體的bug,我們將會修正這些問題
若將ComproDTV設為開啟時顯示TV1，增加視窗的功能會無法選擇Composite/S-Video/YCbCr輸入，只能增加有線電視/天線/DVB-T。
Response: 此為電視卡的硬體限制，並非原來提到的是電視軟體的bug
使用自訂Aspect Ratio時，變更視窗寬度(高度)時，高度(寬度)會跟著改變(非依照事先設定的比例縮放)。建議改成拖曳角落時才會變更比例，拖曳旁邊不變更比例，不然調整視窗大小並維持自定比例很麻煩。
Response: 這屬於軟體的bug,我們將會修正這些問題
數位電視開始錄影和停止錄影所需的時間明顯較類比電視長。大概要五六秒才能開始或停止，類比的只要一兩秒。
Response: 於錄影數位電視時,由於軟體需要重設一些基礎設定,且數位鎖頻速度較類比電視慢,故整體而言反應會比類比電視錄影慢
ComproDTV在Windows鎖定時無法錄影。我因為這個問題少錄好幾個電視節目了。
電視越看聲音會越小。看一陣子之後再打一次目前正在看的台號，就會發現聲音變大了。

最後來幾張用DVB Viewer看公視Hi_HD頻道的截圖(點即可看大圖)，不過由於我的螢幕解析度只有1680*1050，所以沒辦法抓Full HD的圖。

相關討論可至ComproDTV 技術論壇觀看。

Enable Network Level Authentication in XP SP3 (遠端桌面連線顯示"遠端電腦需要網路層級驗證")

Thu, 15 May 2008 06:11:29 GMT

Although Remote Desktop Connection (RDC) 6.1 included in XP SP3 supports NLA, you still have to turn on CredSSP manually for NLA to work.

Description of the Credential Security Service Provider (CredSSP) in Windows XP Service Pack 3

WaitHandle.WaitAll無法處理長度超過64的陣列

Mon, 12 May 2008 17:41:21 GMT

當有一些大量計算可以multi-thread同時做的時候我喜歡用ThreadPool.QueueUserWorkItem丟下去跑。無論是用ThreadPool或多個Thread，有時需要等待那些計算全部完成才能繼續做後續動作，這時就可以用一個ManualResetEvent的collection搭配WaitHandle.WaitAll。然而WaitHandle.WaitAll在陣列元素超過64個的時候就會發生NotSupportedException。

還好WaitHandle.WaitAll做的事情其實很簡單，我們可以自己寫一個function來做。以下是一位C# MVP William Stacey提供的一段WaitAll程式碼：

        public static void WaitAll(WaitHandle[] handles)
        {
            if (handles == null)
                throw new ArgumentNullException("handles");
            foreach (WaitHandle wh in handles)
            {
                wh.WaitOne();
            }
        }

ASP.NET AJAX 循序執行

Thu, 01 May 2008 17:29:12 GMT

ASP.NET AJAX預設如果在前一個動作還沒做完時就引發第二個動作，會把前一個動作直接中斷並執行第二個，造成程式碼常常會有一些奇怪的錯誤。網路上有人把它改寫成把動作放到queue中，依序執行。

只要在aspx中引用下面文章中提供的PageRequestManagerEx.js並呼叫PageRequestManagerEx.init()即可。

Asp.net Ajax UpdatePanel Simultaneous Update - A Remedy

放在 UpdatePanel 中的 TreeView 效能很差

Thu, 01 May 2008 17:13:04 GMT

最近需要用到好幾MB的TreeView，展開時要自動更新TreeNode內容，結果在展開時慢到IE都會跳出來問我要不要中止script的執行。在網路上努力的找了一下資料，運氣不錯發現不久之前剛好有人提到原來要把TreeView的EnableClientScript屬性設為false。不過我後來還是更進一步把ChildNodes改成動態產生，減低所佔的空間就是了......

Very slow TreeView in UpdatePanel

順道一提，IE是以不是以時間判斷script執行時間過久，而是以執行了多少個statement來計算。如果要修改預設的statement數量限制可參考：How to set time-out period for script

How to Hide Windows Explore Menu Bar in Windows Server 2008

Wed, 12 Mar 2008 19:10:41 GMT

IIS FTP 7.0 says "534 Local policy on server does not allow TLS secure connections."

Sun, 02 Mar 2008 09:08:32 GMT

Solution: Select an SSL certificate in "FTP SSL Settings" at the server level.

2007/12/29 卓文萱台南簽唱會

Mon, 31 Dec 2007 02:37:49 GMT

由於上次簽唱會晚了快一個小時才開始，想說這次也不會準時，結果太晚到場。
充好電的電池出門時忘了帶，拍沒幾張後沒電趕緊回家換，所以這次沒拍到幾張，真可惜。
所有的照片請至：http://erictsai.tw/Photos/20071229
2007/11/11卓文萱台南簽唱會：http://erictsai.tw/Photos/20071111
2006/11/18卓文萱台南簽唱會：http://erictsai.tw/Photos/20061118

"The McAfee Framework Service service hung on starting."

Thu, 11 Oct 2007 02:46:54 GMT

Error Event ID: 7022
Description: The McAfee Framework Service service hung on starting.

This error occurs on all my domain controllers and domain members.

Resolution: Execute the following command: "sc config McAfeeFramework depend= RPCSS/Netman" (without quotes), or go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\McAfeeFramework, add a line says "Netman" without quotes to the value of DependOnService.

壓縮永豐e-Leader已下載之歷史資料

Thu, 06 Sep 2007 14:32:05 GMT

下載SQLite，將其中的sqlite3.exe解壓縮至C:\
執行C:\sqlite3.exe "C:\Program Files\eleader\data\UserDef\ChartData.db3"
下vacuum;指令，並耐心等待其完成
下.quit指令，結束SQLite

1990/01/04至2007/09/07的資料下載完440MB壓縮後剩下248MB。

How to move Outlook Connector Outlook.nst file (如何移動Outlook Connector的資料檔)

Wed, 05 Sep 2007 15:01:19 GMT

"With Microsoft Office Outlook Connector, you can use Microsoft Office Outlook 2003 or Microsoft Office Outlook 2007 to access and manage your Microsoft Windows Live Hotmail or Microsoft Office Live Mail accounts, including e-mail messages and contacts for free!"

The default disk volume (C:) which contains my user profile doesn't have enough space to store all my mail, so I have to move Outlook Connector data files to another location. Unfortunately, there is no way to move data files using Outlook Connector or Outlook settings.

Vista: xcopy /e /h /i "%LOCALAPPDATA%\Microsoft\Outlook" "D:\Outlook"
XP: xcopy /e /h /i "%APPDATA%\Microsoft\Outlook" "D:\Outlook"
(Now D:\Outlook contains all the data files.)
Vista: rd /s /q "%LOCALAPPDATA%\Microsoft\Outlook"
XP: rd /s /q "%APPDATA%\Microsoft\Outlook"
(Remove the old data folder.)
Vista: mklink /J "%LOCALAPPDATA%\Microsoft\Outlook" "D:\Outlook"
XP: junction "%APPDATA%\Microsoft\Outlook" "D:\Outlook"
(Redirect the old data folder to the new path.)
For XP, you have to download Junction from Sysinternals first.
Start Outlook and enjoy.

SATA Hot Plug Utility for Windows Vista

Thu, 30 Aug 2007 07:00:08 GMT

If you're using SATA drives in Windows XP with vendor-provided driver, SATA drives may show up in the "Safely Remove Hardware" icon for hot plugging.

But in Vista, SATA drives won't show up in "Safely Remove Hardware".

HotSwap! is an utility which allows hot plugging for SATA drives in Windows Vista.

Extremely Slow HTTPS Access with IE7 in Vista (在Vista中用IE7開啟某些HTTPS網頁時速度極慢)

Sat, 14 Apr 2007 18:42:31 GMT

For some HTTPS websites, the response will be very slow.

Try install this patch: Update for Windows Vista (KB933228)

If it doesn't help, try the following:

First: Try to disable "Use TLS 1.0" in Internet Options.

Second: Try to enable "Use SSL 2.0" in Internet Options.

Last: If it's still very slow, try to disable TCP auto tunning by executing the following command in cmd.exe as administrator.

netsh interface tcp set global autotuninglevel=disabled

Using Web Publishing Wizard in Vista (在Vista中使用照片上傳精靈)

Wed, 11 Apr 2007 17:06:16 GMT

Reference: XP Web Publishing Support within Vista

Renam the regitry location in the .reg file
From: HKCU\Softw...\Explorer\PublishingWizard\PublishingWizard\Providers
To: HKCU\Softw...\Explorer\PublishingWizard\InternetPhotoPrinting\Providers
Print photos online using Windows Photo Gallery

Extended Reading: Online Print Wizard Service Provider SDK

Run OpenSSH sshd on Windows without Cygwin

Wed, 04 Apr 2007 19:12:21 GMT

"OpenSSH is a FREE version of the SSH connectivity tools that technical users of the Internet rely on".

For Windows Vista Enterprise, Ultimate and Server 2008:

Start -> Control Panel -> Programs -> Turn Windows features on or off, install "Subsystem for UNIX-based Applications". Reboot.

(Windows Server 2008)

(Vista)
Install Utilities and SDK for Subsystem for UNIX-based Applications in Microsoft Windows Vista RTM/Windows Vista SP1 and Windows Server 2008. Reboot.
Join UNIX Tools Community.
Download pkg-current-bin60.sh with the user name and password from previous step and save it to the desktop.
Start "C Shell" as administrator.
sh Desktop/pkg-current-bin60.sh

For Windows 2003 R2:

to be done...

For Windows 2000, XP, 2003:

Install Windows Services for UNIX Version 3.5. Reboot.
Join UNIX Tools Community.
Download pkg-current-bin35.sh with the user name and password from previous step and save it to C:\.
Start "C Shell" as administrator.
sh /dev/fs/C/pkg-current-bin35.sh

Generic Steps:

Start "C Shell" as administrator.
pkg_update -L openssh, follow the instructions on the screen.
pkg_update -L openssh, again.

To start sshd manually: /etc/init.d/sshd start
To stop sshd: /etc/init.d/sshd stop
Prevent sshd from starting with Windows: mv /etc/rc2.d/S32sshd /etc/rc2.d/sshd
Let sshd starts with Windows: mv /etc/rc2.d/sshd /etc/rc2.d/S32sshd

FON as bridge (讓FON跑橋接模式)

Mon, 02 Apr 2007 14:04:21 GMT

Login with a SSH client.
Save the following (modified from this script) as /etc/init.d/N15bridge. Modify the "# Set IP for the bridge" section to meet your needs.
#!/bin/ash
echo "Setting up LAN bridge"

# Kill DHCP server+ client
/usr/bin/killall dnsmasq
/usr/bin/killall -9 udhcpc

# create bridge interface
/usr/sbin/brctl addbr br0
/usr/sbin/brctl stp br0 off
/usr/sbin/brctl setfd br0 0

# shutdown/remove IPs from the old interfaces
/sbin/ifconfig eth0:1 down
/sbin/ifconfig eth0 0.0.0.0
/sbin/ifconfig ath1 0.0.0.0

# bring up the bridge interface
/sbin/ifconfig br0 up

# add the old interfaces to the bridge
/usr/sbin/brctl addif br0 ath1
/usr/sbin/brctl addif br0 eth0

# set IP of the bridge for FON remote admin
/sbin/udhcpc -i br0 -R # get new IP via dhcp
#/sbin/ifconfig br0 192.168.0.4 # remove the leading # to specify a static IP
#/sbin/route add default gw 192.168.0.254 # remove the leading # to specify the default gateway

# set firewall rules
iptables -I INPUT -i br0 -j ACCEPT
iptables -I OUTPUT -o br0 -j ACCEPT

# add bridge to hostapd.conf and restart hostapd (allows to use WPA)
echo bridge=br0 >> /tmp/hostapd.conf
/usr/bin/killall hostapd
/usr/sbin/hostapd -B /tmp/hostapd.conf

# restarting dnsmasq but without dhcp
dnsmasq
chmod +x /etc/init.d/N15bridge
vi /sbin/ifup, replace "wan_ifname=${wan_ifname:-eth0}" with "wan_ifname=${wan_ifname:-br0}", save the file.
Go to www.fon.com, log in and update shared bandwidth.
reboot

If /sbin/ifup has been updated in future updates, you must modify it again after the update and reboot.

Disable CD Burning in Vista (停用Vista中的燒錄功能)

Sun, 01 Apr 2007 11:51:20 GMT

In Vista, you can't disable the CD Burning feature from the Property page of a device.

By Group Policy:

1. run gpedit.msc

2. go to [User Configuration\Administrative Templates\Windows Components\Windows Explorer]

3. double click [Remove CD Burning Features], choose [Enable]

By Registry:

1. run cmd.exe as administrator

2. reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoCDBurning /t REG_DWORD /d 1 /f

Orion & Winter Triangle (獵戶座和冬季大三角)

Tue, 27 Mar 2007 17:16:44 GMT

Reference: WIKISKY

Keyboard Shortcuts of Microsoft Products (微軟系列軟體快速鍵)

Sun, 28 Jan 2007 06:05:45 GMT

Accessibility in Microsoft Products: Keyboard Assistance and Shortcuts

ET Cut - My DVR-MS Cutter for Vista Media Center

Sun, 21 Jan 2007 15:22:14 GMT

ET Cut v0.3

Source Code (VS2008)

Screenshot:

Motivation:

I used to use a program called dCut in Windows XP Media Center Edition (MCE) to cut segments from DVR-MS files, and then use DVRMSToolbox to convert DVR-MS files into MPG or WMV format. But dCut doesn't work in Vista Media Center. Besides, dCut cannot combine several segments into one file. ( I usaually dig out hidden DVR-MS files from Recorded TV\TempSBE while I see some interesting advertisement. Unfortunately sometimes the ad is splitted into two files. )

Introduction:

ET Cut is a program runs in Vista Media Center which can combine any amount of segments from any amount of DVR-MS files into a new file.

Installation and Uninstallation:

Right click on the Setup.exe and choose "Run as administrator".

Usage:

Online Media -> Program Library -> ET Cut

Known Issue:

After a video ends or changing video, the program hangs several seconds.
Ugly UI.
On some computers, the UI doesn't show.

Change Log:
--------------------------

v0.3

CHG: Directory browsing UI improvement.
CHG: Program architecture refinement.

v0.2

NEW: Customizable source/destination directory.

To Do:
--------------------------

To generate output asynchronously. So you can do something else while the program is generating the output.

P.S. You can also take a look at Olcay's TV Toolbox.

Photo Album: BlogPosts

Sat, 02 Aug 2008 08:00:05 GMT

BlogPosts

SUA Vista

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Photo Album: stars

Sun, 08 Apr 2007 16:11:06 GMT

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Mon, 12 Mar 2007 13:47:30 GMT

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Photo Album: 2006/11/18 卓文萱台南簽唱會

Mon, 12 Mar 2007 11:30:47 GMT

2006/11/18 卓文萱台南簽唱會

IMG_2998.JPG

IMG_3003.JPG

IMG_3012.JPG

IMG_3022.JPG

IMG_3024.JPG

IMG_3033.JPG

IMG_3042.JPG

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Photo Album: 9月25日

Tue, 02 Jan 2007 10:40:05 GMT

9月25日

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Thu, 31 Aug 2006 20:16:02 GMT

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Sat, 15 Jul 2006 20:23:32 GMT

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