调用mplayer播放几个在线媒体的脚本

aaccdd

自己的小练习，
只为图省事，
很简陋，
请指教。:thank
谢谢！

1. #!/bin/sh
   
2. # this is a test to play some online media with mplayer
   
3. # written by aaccdd<waxyxgn@hotmail.com>
   
4. # any comment or modification would be appreciated
   
5. 
   
6. # define play_bbc : play bbc online news
   
7. play_bbc()
   
8. {
   
9.         play_ram() # play ram stream
   
10.         {
    
11.         wget "http://stream.servstream.com/ViewWeb/BBCTechnology/Event/BBC_World_Service.asx" -O $HOME/.live
    
12.         mplayer -playlist $HOME/.live
    
13.         rm $HOME/.live
    
14.         }
    
15.        
    
16.         play_mms() # play mms stream
    
17.         {
    
18.         wget "http://www.bbc.co.uk/worldservice/ram/live_news.ram" -O $HOME/.live
    
19.         mplayer -playlist $HOME/.live
    
20.         rm $HOME/.live
    
21.         }
    
22. echo                                                                                
    
23. echo "   Which type would you prefer, ram or mms?"
    
24. echo
    
25. read choice
    
26. case $choice
    
27. in
    
28. ram) play_ram;;
    
29. mms) play_mms;;
    
30. esac
    
31. }
    
32. 
    
33. # define play_cnn: play cnn online news
    
34. play_cnn()
    
35. {
    
36. echo
    
37. echo "   Which would you prefer, ram or mms?"
    
38. echo
    
39. read type
    
40. case $type
    
41. in
    
42. ram) mplayer mms://live.stream.aol.com/cnn_webcast4_high;;
    
43. mms) mplayer rtsp://live1.stream.aol.com/farm/*/encoder/cnn_webcast4_high;;
    
44. esac
    
45. }
    
46. 
    
47. # define play_cctv: play cctv online channel
    
48. play_cctv()
    
49. {
    
50.         # change the number following live to get access to different channel
    
51.         # 1-news 2-economy 3-english
    
52.         echo       
    
53.         echo "   You can choose 1-news, 2-economy, 3-english"
    
54.         echo
    
55.         read channel
    
56.         case $channel
    
57.         in
    
58.         1) mplayer mms://winmedia.cctv.com.cn/live1;;
    
59.         2) mplayer mms://winmedia.cctv.com.cn/live2;;
    
60.         3) mplayer mms://winmedia.cctv.com.cn/live3;;
    
61.         esac
    
62. }
    
63. 
    
64. # define play_btv: play btv online channel
    
65. play_btv()
    
66. {
    
67.        
    
68.          wget "http://211.144.23.6/program_list.asp?chan_name=%B1%B1%BE%A9%D0%C2%CE%C5#"  -O $HOME/.live
    
69.         grep rtsp $HOME/.live | cut -d "(" -f2 | cut -d "," -f1 | tr -d "'" >$HOME/.live
    
70.         mplayer -playlist $HOME/.live
    
71.         rm $HOME/.live
    
72. }
    
73. 
    
74. # define play_cri: play cri online news, musics
    
75. play_cri()
    
76. {
    
77.         wget [url]http://live.cri.com.cn/fm915.ram[/url] -O $HOME/.live
    
78.         mplayer -playlist $HOME/.live
    
79. }
    
80. 
    
81. echo "============================================================"
    
82. echo "=                                                          ="
    
83. echo "=  You should install MPlayer first to use this script     ="
    
84. echo "=                                                          ="
    
85. echo "=  Testing ......                                          ="
    
86. echo "=                                                          ="
    
87. echo "============================================================"
    
88. echo
    
89. which mplayer 1>/dev/null 2>&1
    
90. case $?
    
91. in
    
92. 0) echo "  OK, you have MPlayer installed. Go on";;
    
93. *) echo "  Sorry, you don't have Mplayer installed. Quit";break;;
    
94. esac
    
95. 
    
96. echo
    
97. echo "============================================================"
    
98. echo "=                                                          ="
    
99. echo "=  The Online Media to choose include:                     ="
    
100. echo "=                                                          ="
     
101. echo "=  bbc:  BBC online news, including ram and mms stream     ="
     
102. echo "=  cnn:  CNN online news, including ram and mms stream     ="
     
103. echo "=  cctv: CCTV online channel, including channel 1-3        ="
     
104. echo "=  btv:  BTV online channel                                ="
     
105. echo "=  cri:  CRI online news, musics                           ="
     
106. echo "=                                                          ="
     
107. echo "============================================================"
     
108. echo
     
109. echo "  Please type your choise, quit for exit"
     
110. echo
     
111. read choise
     
112. echo
     
113. case $choise
     
114. in
     
115. bbc)  echo "   You have chosen to play bbc online";echo;play_bbc;;
     
116. cnn)  echo "   You have chosen to play cnn online";echo;play_cnn;;
     
117. cctv) echo "   You have chosen to play cctv online";echo;play_cctv;;
     
118. btv)  echo "   You have chosen to play btv online";echo;play_btv;;
     
119. cri)  echo "   You have chosen to play cri online";echo;play_cri;;
     
120. quit) break;;
     
121. esac
     
122. 
     

复制代码

aaccdd

一个小问题：
如果输入不是所预想的，
怎么样重新回到读取输入呢？

比如输入：
shanghai
希望反馈：
wrong input/choise, try again.
Please type your choice to play.

aaccdd

问题问的不清楚~
是这样：
我想定义一个
play_help
显示帮助信息，
然后重新读取输入;
但是执行完就退出了。

如果用循环指令，哪个好呢？

KornLee

echo                                                                                
echo "   Which type would you prefer, ram or mms?"
echo
read choice
case $choice
in
ram) play_ram;;
mms) play_mms;;
*)      echo "input error!";exit 1;;
esac