Vietnam mobile day 2012 stream audio - vinazip
-
Upload
quang-anh-le -
Category
Technology
-
view
760 -
download
0
Transcript of Vietnam mobile day 2012 stream audio - vinazip
![Page 1: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/1.jpg)
GIẢI PHÁP STREAMING AUDIO TRÊN NỀN TẢNG CÔNG NGHỆ
J2ME
Mr. Nguyễn Đình NhấtProject ManagerVinaZip., JSC
![Page 2: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/2.jpg)
Nội dung:
Yêu cầu & Mục đích.
Vấn đề.
Giải pháp.
Ứng dụng.
![Page 3: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/3.jpg)
Yêu cầu & Mục đích:
o Bộ nhớ trong thấp. (min : 750kb)
o Không hỗ trợ streaming
(RTP/RTSP).
o Không hỗ trợ 3G.
Thiết bị:
Nghe audio online ?
![Page 4: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/4.jpg)
Nội dung:
Yêu cầu & Mục đích.
Vấn đề.
Giải pháp.
Ứng dụng.
![Page 5: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/5.jpg)
Vấn đề:
Server Bộ nhớ
Thời gian
![Page 6: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/6.jpg)
Nội dung:
Yêu cầu & Mục đích.
Vấn đề.
Giải pháp.
Ứng dụng.
![Page 7: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/7.jpg)
Giải pháp:
Yêu cầu chung.
Bán tự động.
Tự động.
![Page 8: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/8.jpg)
Yêu cầu chung:
File MP3
Bit rate <= 32kbit/s(Bit rate chuẩn là128kbit/s)
![Page 9: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/9.jpg)
Giải pháp:
Yêu cầu chung.
Bán tự động.
Tự động.
![Page 10: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/10.jpg)
Bán tự động (1):
Cắt file audio thành nhiều phần <100kb
![Page 11: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/11.jpg)
Bán tự động (2):Player mPlayer1;Player mPlayer2;
mPlayer1.realize();mPlayer1.prefetch();mPlayer1.start();
Download …
mPlayer2.realize();mPlayer2.prefetch();
![Page 12: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/12.jpg)
Giải pháp:
Yêu cầu chung.
Bán tự động.
Tự động.
![Page 13: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/13.jpg)
Cấu trúc file mp3:Mp3 Header
Mp3 HeaderMp3 Data
Mp3 DataMp3 HeaderMp3 Data
Frame 1
Frame 2
Frame 3
……
Frame 1 … Frame 1000 Frame 2000… Frame 3000…
Byte 0 Byte 65619 Byte 1115533 Byte 2296685
![Page 14: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/14.jpg)
Tự động:
![Page 15: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/15.jpg)
Tool Phân tích:MPEG Audio Frame Header
![Page 16: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/16.jpg)
Nội dung:
Yêu cầu & Mục đích.
Vấn đề.
Giải pháp.
Ứng dụng.
![Page 17: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/17.jpg)
Ứng dụng:Ưu điểm:
Chi phí server thấp. Dễ thực hiện.
Nhược điểm: Bị trễ khi chơi các đoạn audio.
Ứng dụng: Phù hợp với ứng dụng không đòi hỏi yêu cầu thưởng thức audio cao như “học tiếng anh online”.
![Page 18: Vietnam mobile day 2012 stream audio - vinazip](https://reader036.fdocument.pub/reader036/viewer/2022081602/5554df0ab4c9051b6e8b5283/html5/thumbnails/18.jpg)
it’s all about integration & connection....
Thank you & Have a beautiful life…
For more detail, Please send email to [email protected] or http://vinazip.com