1 / 20

Media Streaming with UPnP and MPEG-7 in Embedded Linux System

Media Streaming with UPnP and MPEG-7 in Embedded Linux System. Hsu Shih-Chang DCNLAB @ CSIE, NCKU. Outline . UPnP Network Architecture Streaming UPnP SDK Mplayer MPEG4IP QT-Embedded. UPnP Network Architecture. Server. UPnP Server MPEG4IP WebCam Driver. Client.

salome
Download Presentation

Media Streaming with UPnP and MPEG-7 in Embedded Linux System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Media Streaming with UPnP and MPEG-7 in Embedded Linux System Hsu Shih-Chang DCNLAB @ CSIE, NCKU

  2. Outline • UPnP Network Architecture • Streaming • UPnP SDK • Mplayer • MPEG4IP • QT-Embedded

  3. UPnP Network Architecture Server • UPnP Server • MPEG4IP • WebCam Driver Client • OS (kernel and file system) • Network (wired and wireless) • UPnP Player • Mplayer

  4. Streaming • Streaming Architecture Coder Decoder

  5. Streaming (contd.) • A general view of the real-time protocols • stream description:SDP (Session Description Protocol) describe the session and content • media transport: RTP (Real Time Protocol) send data and metadata • stream control:RTSP (Real Time Streaming Protocol) remote control the session

  6. Streaming (contd.) • HTTP streaming vs. RTP streaming

  7. UPnP SDK • 藉由使用CyberLink C++ UPnP SDK來做為我們的開發工具，它能夠自動控制UPnP所需要的protocol，讓我們能夠較便利的建立我們的device 與 control point。 • CyberLink UPnP SDK 是sourceforge的project，為open source，提供了我們開發UPnP應用程式所需要的lib。

  8. UPnP SDK- Building • Required File： •Apache Xerces-c++-2.5.0 • CyberLink C++ UPnP SDK-1.5.0 Client Server Building for x86 Building for ARM

  9. Mplayer • Architecture Scope of Mplayer Figure. Media Streaming

  10. Mplayer- Building Build library and codecs for Mplayer Required Files： zlib-1.2.2.tar.gz (資料壓縮的函式庫) libmad-0.15.1b.tar.gz (MPEG聲音解碼器) xvidcore-1.0.3.tar.gz (MPEG4 decoder) live.2005.01.07.tar.gz (多媒體串流c++函式庫) ffmpeg-0.4.9-pre1.tar.gz SDL-1.2.8.tar.gz Build Mplayer for ARM Required Files： MPlayer-1.0pre5.tar.bz2 編譯完mplayer之後在編譯目錄下會產生一個mplayer的執行檔 將它放入開發板上即可使用。

  11. MPEG4IP • 由於原本的UPnP Streaming Server並不支援即時影像的傳遞，我們利用MPEG4IP project 裡的MP4Live，將Webcam 影音壓縮成MPEG4 串流格式，來幫助我們完成即時影像的處理。 • Mpeg4ip是一個提供開放原始碼且以標準格式為準的編碼器，及廣播器，廣播以MPEG-4編碼的聲音與影像，Mpeg4ip主要的平台是linux，但是由於開放原始碼，所以依然可以開發於別的平台。

  12. MPEG4IP(contd.) • 在編譯MPEG4IP前，需要先安裝一些必備的函式庫。 Build library and codecs for MPEG4IP Required Files： zlib-1.2.2.tar.gz (資料壓縮的函式庫) xvidcore-1.0.3.tar.gz (MPEG4 decoder) SDL-1.2.8.tar.gz lame-3.96.tar.gz faac-18102004.tar.gz ffmpeg-0.4.9-pre1.tar.gz Build MPEG4IP Required Files： mpeg4ip-1.1.tar.gz

  13. MPEG4IP - WebCam Driver • 為了使用WebCam來做及時影像的傳輸，我們必須先在PC上驅動WebCam。 • 型號 : Logitech QuickCam™ Pro 4000 • Required Files： usb-webcam.tar.gz

  14. WebCam Driver(condt.)

  15. QT-Embedded • Building Flow : Build QT-Embedded Build QT Program for Target Board Execute QT Program in the Target Board

  16. QT-Embedded(contd.) • 若要在開發版上執行我們的QT程式，必須先編譯出程式所需要的library。 Build QT-Embedded Required Files： qt-embedded-2.2.3.tar.gz patch-qt-embedded-2.2.3(用來驅動 StrongARM touch panel)

  17. QT-Embedded(contd.) • Building QTE Steps :

  18. QT-Embedded(contd.) • 若要編譯我們自己寫的QT程式，我們需要使用到tmake這個工具來幫我們產生Makefile 。 • tmake裡面有progen和tmake 兩個執行檔。 其中， progen是幫我們產生一個專案(project) ，tmake則是利用progen所產生的XXX.pro去產生 Makefile。(註：tmake 是用在QT-3.X的版本以下)

  19. QT-Embedded(contd.) • Building QT Program Steps : 路徑設定

  20. QT-Embedded(contd.) • 要在版子上執行我們的QT程式，我們必須將先前編譯好的QT library以及font的資料夾先放到開發版上。 File System / . . . qt etc lib etc font Steps :

More Related