Comments on: Record Streaming Audio with Linux: Part II http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/ by Shawn Dowler Tue, 22 Dec 2009 19:18:31 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: Shawn Dowler http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-36 Shawn Dowler Sat, 09 Aug 2008 00:47:33 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-36 Quite honestly, I don't know how you would accomplish pausing the recording. It's streaming live, so you certainly can't stop that part, but it may be possible to divert the stream through the fifos to <code>/dev/null</code> when a button is pressed and go back again afterward. I honestly don't have the "code fu" to do anything like that or to answer your question without a lot of fiddling and researching. I'm glad that you find the code useful, and I do appreciate your posting here with updates when you make interesting modifications. Quite honestly, I don’t know how you would accomplish pausing the recording. It’s streaming live, so you certainly can’t stop that part, but it may be possible to divert the stream through the fifos to /dev/null when a button is pressed and go back again afterward.

I honestly don’t have the “code fu” to do anything like that or to answer your question without a lot of fiddling and researching. I’m glad that you find the code useful, and I do appreciate your posting here with updates when you make interesting modifications.

]]> By: Xwang http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-35 Xwang Fri, 08 Aug 2008 14:27:48 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-35 Hi, I've done the following script which acts as a "wizard" with some pop up that enables the user to pass the input to the recorder. Do you like it? Do you think is it possible to modify it in order to pause the recording? Thank you, Xwang [bash] #!/bin/bash # radioRecoder.sh # v0.2.0 - 20080808 :-) # Xwang # Released under GPL 2.0 and following (can you help me and tell if it is GPL3 compliant?) # This script acts as a wizard enabling the user to select the URL to listen and eventually rip it after having specified # the directory and the file name # The cancel button is used to go to the previous page # To exit the program press cancel in the URL page and follow the instruction # TBD # check if parameter is passed or not # modify parmeters so that recording can be done without user iteration # capture Ctrl-C in order to clean all temporary files and kill opened processes before closing # put confirmation on registration stop # open the directory where last file has been saved (maybe asking for it) at the end of the recording # translate messanges # # assign as default stream value the one passed ad first parameters if any (check TBD) STREAM=$1 TEMPDIR=/tmp # inizialize variables EXIT=1 STATE=1 PIDlistener2="" PIDrecorder2="" while [ $EXIT -eq 1 ] do case $STATE in 0) kdialog --title "RadioRecorder" --yesno "Do you want to exit the program?" EXIT=$? if [ $EXIT -eq 1 ] then STATE=1 fi ;; 1) # ask radio stream URL STREAM=`kdialog --title "RadioRecorder" --inputbox "Insert the radio stream url" $1 ` STREAMBUTTON=$? if [ $STREAMBUTTON -eq 1 ] then STATE=0 else # start mplayer in background to listen to the radio only if the ok button has been selected else exit # xterm -e mplayer -vo null -vc null -cache 512 $STREAM& mplayer -vo null -vc null -cache 512 $STREAM& PIDlistener=$! # listener PID while [ -z $PIDlistener2 ] do #repeat the check till PIDlistener2 is correctly detected PIDlistener2=`ps -ef| awk '$3 == '$PIDlistener' { print $2 }'` done STATE=2 fi ;; 2) # select action to do ACTION=`kdialog --title "RadioRecorder" --menu "Select an action:" 1 "Change URL" 2 "Record stream"` ACTIONBUTTON=$? if [ $ACTIONBUTTON -eq 1 ] then ACTION=$ACTIONBUTTON # if cancel is selected go back to url dialog fi if [ $ACTION -eq 1 ] then #if Change URL or Cancel has been selected kill listener and go back to URL page #kill listener processes kill -9 $PIDlistener2 kill -9 $PIDlistener # reinitialize PID variables PIDlistener="" PIDlistener2="" STATE=1 else STATE=3 fi ;; 3) # ask destination directory -- default home DIR=$HOME DIR=`kdialog --title "RadioRecorder - Select destination directory" --getexistingdirectory $DIR` #default destination directory is the user home DIRBUTTON=$? if [ $DIRBUTTON -eq 1 ] then #if Cancel has been selected go back to action page STATE=2 else STATE=4 fi ;; 4) # ask file name at which will be added the date and eventually record stream FILENAME="radio" FILENAME=`kdialog --title "RadioRecorder - Save as" --inputbox "Insert the file name (date will be automatically added)" $FILENAME` FILENAMEBUTTON=$? if [ $FILENAMEBUTTON -eq 1 ] then #if Cancel has been selected go back to action page STATE=3 else #capture stream DATE=`date +%Y_%m_%d_%H%M%S` TEMPFILE=$TEMPDIR/$FILENAME-$DATE FILE=$DIR/$FILENAME-$DATE mkfifo $TEMPFILE.wav lame $TEMPFILE.wav $FILE.mp3>/dev/null& PIDconverter=$! #converter PIN # xterm -e mplayer -cache 512 -vo null -vc null -ao pcm:fast:file="$TEMPFILE.wav" $STREAM>/dev/null& mplayer -cache 512 -vo null -vc null -ao pcm:fast:file="$TEMPFILE.wav" $STREAM>/dev/null& PIDrecorder=$! #recorder PIN while [ -z $PIDrecorder2 ] do #repeat the check till PIDrecorder2 is correctly detected PIDrecorder2=`ps -ef| awk '$3 == '$PIDrecorder' { print $2 }'` done kdialog --msgbox "Press OK button to stop recording" #stop recording #kill converter kill -9 $PIDconverter #kill recorder processes kill -9 $PIDrecorder2 kill -9 $PIDrecorder # reinitialize PID variables PIDconverter="" PIDrecorder="" PIDrecorder2="" #removing temporary file rm $TEMPFILE.wav #go back to action page STATE=2 fi ;; esac done kdialog --title "RadioRecorder" --msgbox "Thank you for using radioRecorder" echo "Bye Bye" exit [/bash] Hi,
I've done the following script which acts as a "wizard" with some pop up that enables the user to pass the input to the recorder.
Do you like it?
Do you think is it possible to modify it in order to pause the recording?
Thank you,
Xwang

PLAIN TEXT
BASH:
  1. #!/bin/bash
  2. # radioRecoder.sh
  3. # v0.2.0 - 20080808 :-)
  4. # Xwang
  5. # Released under GPL 2.0 and following (can you help me and tell if it is GPL3 compliant?)
  6.  
  7. # This script acts as a wizard enabling the user to select the URL to listen and eventually rip it after having specified
  8. # the directory and the file name
  9. # The cancel button is used to go to the previous page
  10. # To exit the program press cancel in the URL page and follow the instruction
  11.  
  12.  
  13. # TBD
  14. # check if parameter is passed or not
  15. # modify parmeters so that recording can be done without user iteration
  16. # capture Ctrl-C in order to clean all temporary files and kill opened processes before closing
  17. # put confirmation on registration stop
  18. # open the directory where last file has been saved (maybe asking for it) at the end of the recording
  19. # translate messanges
  20. #
  21.  
  22.  
  23.  
  24. # assign as default stream value the one passed ad first parameters if any (check TBD)
  25. STREAM=$1
  26.  
  27. TEMPDIR=/tmp
  28. # inizialize variables
  29. EXIT=1
  30. STATE=1
  31. PIDlistener2=""
  32. PIDrecorder2=""
  33.  
  34. while [ $EXIT -eq 1 ]
  35. do
  36.     case $STATE in
  37.     0)
  38.         kdialog --title "RadioRecorder" --yesno "Do you want to exit the program?"
  39.         EXIT=$?
  40.         if [ $EXIT -eq 1 ]
  41.         then
  42.             STATE=1
  43.         fi
  44.     ;;
  45.     1)
  46.     # ask radio stream URL
  47.         STREAM=`kdialog --title "RadioRecorder" --inputbox "Insert the radio stream url" $1 `
  48.         STREAMBUTTON=$?
  49.         if [ $STREAMBUTTON -eq 1 ]
  50.         then
  51.             STATE=0
  52.         else
  53.             # start mplayer in background to listen to the radio only if the ok button has been selected else exit
  54. #         xterm -e mplayer -vo null -vc null -cache 512 $STREAM&#38;#38;
  55.             mplayer -vo null -vc null -cache 512 $STREAM&#38;#38;
  56.             PIDlistener=$! # listener PID
  57.             while [ -z $PIDlistener2 ]
  58.             do
  59.                 #repeat the check till PIDlistener2 is correctly detected
  60.                 PIDlistener2=`ps -ef| awk '$3 == '$PIDlistener' { print $2 }'`
  61.             done
  62.             STATE=2
  63.         fi
  64.     ;;
  65.     2)
  66.     # select action to do
  67.         ACTION=`kdialog --title "RadioRecorder" --menu "Select an action:" 1 "Change URL" 2 "Record stream"`
  68.         ACTIONBUTTON=$?
  69.  
  70.         if [ $ACTIONBUTTON -eq 1 ]
  71.         then
  72.             ACTION=$ACTIONBUTTON # if cancel is selected go back to url dialog
  73.         fi
  74.         if [ $ACTION -eq 1 ]
  75.         then
  76.             #if Change URL or Cancel has been selected kill listener and go back to URL page
  77.             #kill listener processes
  78.             kill -9 $PIDlistener2
  79.             kill -9 $PIDlistener
  80.             # reinitialize PID variables
  81.             PIDlistener=""
  82.             PIDlistener2=""
  83.             STATE=1
  84.         else
  85.             STATE=3
  86.         fi
  87.     ;;
  88.     3)
  89.     # ask destination directory -- default home
  90.  
  91.         DIR=$HOME
  92.         DIR=`kdialog --title "RadioRecorder - Select destination directory" --getexistingdirectory $DIR` #default destination directory is the user home
  93.         DIRBUTTON=$?
  94.         if [ $DIRBUTTON -eq 1 ]
  95.         then
  96.             #if Cancel has been selected go back to action page
  97.             STATE=2
  98.         else
  99.             STATE=4
  100.         fi
  101.     ;;
  102.     4)
  103.     # ask file name at which will be added the date and eventually record stream
  104.         FILENAME="radio"
  105.         FILENAME=`kdialog --title "RadioRecorder - Save as" --inputbox "Insert the file name (date will be automatically added)" $FILENAME`
  106.         FILENAMEBUTTON=$?
  107.         if [ $FILENAMEBUTTON -eq 1 ]
  108.         then
  109.             #if Cancel has been selected go back to action page
  110.             STATE=3
  111.         else
  112.             #capture stream
  113.             DATE=`date +%Y_%m_%d_%H%M%S`
  114.             TEMPFILE=$TEMPDIR/$FILENAME-$DATE
  115.             FILE=$DIR/$FILENAME-$DATE
  116.             mkfifo $TEMPFILE.wav
  117.             lame $TEMPFILE.wav $FILE.mp3&#38;gt;/dev/null&#38;#38;
  118.             PIDconverter=$! #converter PIN
  119. #       xterm -e mplayer -cache 512 -vo null -vc null -ao pcm:fast:file="$TEMPFILE.wav" $STREAM&#38;gt;/dev/null&#38;#38;
  120.             mplayer -cache 512 -vo null -vc null -ao pcm:fast:file="$TEMPFILE.wav" $STREAM&#38;gt;/dev/null&#38;#38;
  121.             PIDrecorder=$! #recorder PIN
  122.             while [ -z $PIDrecorder2 ]
  123.             do
  124.                 #repeat the check till PIDrecorder2 is correctly detected
  125.                 PIDrecorder2=`ps -ef| awk '$3 == '$PIDrecorder' { print $2 }'`
  126.             done
  127.             kdialog --msgbox "Press OK button to stop recording"
  128.             #stop recording
  129.             #kill converter
  130.  
  131.             kill -9 $PIDconverter
  132.             #kill recorder processes
  133.             kill -9 $PIDrecorder2
  134.             kill -9 $PIDrecorder
  135.             # reinitialize PID variables
  136.             PIDconverter=""
  137.             PIDrecorder=""
  138.             PIDrecorder2=""
  139.             #removing temporary file
  140.             rm $TEMPFILE.wav
  141.             #go back to action page
  142.             STATE=2
  143.         fi
  144.     ;;
  145.     esac
  146. done
  147.  
  148. kdialog --title "RadioRecorder" --msgbox "Thank you for using radioRecorder"
  149. echo "Bye Bye"
  150. exit

]]> By: Xwang http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-34 Xwang Wed, 06 Aug 2008 08:01:02 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-34 Hi, how can I add a simple frontend which permits to insert: 1) the location where to save the stream 2) the url 2) the recording time Moreover I would like to be able to start and stop the recording using a record and a stop button. I've done in the past a simple gui using perl, but I don't know how to modify the script in order to stop the registration using the gui Hi,
how can I add a simple frontend which permits to insert:
1) the location where to save the stream
2) the url
2) the recording time
Moreover I would like to be able to start and stop the recording using a record and a stop button.
I've done in the past a simple gui using perl, but I don't know how to modify the script in order to stop the registration using the gui

]]> By: Shawn Dowler http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-32 Shawn Dowler Mon, 19 Mar 2007 22:08:41 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-32 @mxwlpxwl: The sox command was a late addition as I noticed some of the stations were including long periods of silence in place of certain commercials. It doesn't happen as much anymore, but it still happens every now and again. The sox command just strips out silence, nothing more. You could leave it out, but it doesn't change much if you leave it in, so I just put it in for all of them. I'm glad you like the scripts. Remember, I didn't come up with the concept, I just improved upon the original design. @mxwlpxwl:
The sox command was a late addition as I noticed some of the stations were including long periods of silence in place of certain commercials. It doesn't happen as much anymore, but it still happens every now and again. The sox command just strips out silence, nothing more. You could leave it out, but it doesn't change much if you leave it in, so I just put it in for all of them.

I'm glad you like the scripts. Remember, I didn't come up with the concept, I just improved upon the original design.

]]> By: mxwlpxwl http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-33 mxwlpxwl Sun, 18 Mar 2007 22:48:48 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-33 Your script is great, I'm trying to implement now, but I have a question as to why you are running lame, then sox, and finally mplayer. I'm sure this is correct, I am just wondering why? Again, your script is tight, good work :-) mxwlpxwl Your script is great, I'm trying to implement now, but I have a question as to why you are running lame, then sox, and finally mplayer. I'm sure this is correct, I am just wondering why?

Again, your script is tight, good work :-)

mxwlpxwl

]]> By: Shawn Dowler http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-31 Shawn Dowler Sun, 04 Feb 2007 06:24:01 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-31 @Michael Brehm: I'm glad that I could help you find a way to solve your problems using Free Software. I love to hear stories like yours, and the thanks are always appreciated! @Michael Brehm:
I'm glad that I could help you find a way to solve your problems using Free Software. I love to hear stories like yours, and the thanks are always appreciated!

]]> By: Michael Brehm http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-30 Michael Brehm Sat, 03 Feb 2007 16:51:51 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-30 Thanks for this solution the scheduling of online programs was one of the items causing me to dual boot. Now I have one less reason to keep my XP partition. I just wish that it did not take me 5 days to find this solution after I started looking for it on the net! Again THANK YOU and also to all the authors of the pages that were referenced. The only problem I am having getting this to work in Ubuntu is with RECORD_HI, but RECORD works great. I will figure that our soon enough, but this was a great start. Thanks for this solution the scheduling of online programs was one of the items causing me to dual boot. Now I have one less reason to keep my XP partition. I just wish that it did not take me 5 days to find this solution after I started looking for it on the net! Again THANK YOU and also to all the authors of the pages that were referenced.

The only problem I am having getting this to work in Ubuntu is with RECORD_HI, but RECORD works great. I will figure that our soon enough, but this was a great start.

]]> By: jmfv http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-29 jmfv Wed, 10 May 2006 13:37:59 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-29 Beautiful! Easy to understand the code, easy to implement, very useful results. Just what every Linux user dreams of. Thank you and congrats! Beautiful! Easy to understand the code, easy to implement, very useful results. Just what every Linux user dreams of. Thank you and congrats!

]]> By: Shawn Dowler http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-28 Shawn Dowler Fri, 03 Mar 2006 19:15:01 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-28 I was working on my own solution, but I knew it was lacking some things, so when I found your implementation I was very impressed. I especially liked the way you killed all the processes. That was what I was looking for when I found your scripts. Your scripts were great, so I merged what I had with what you had done and I'm very pleased with the results. I especially like your today script. It is so much nicer than what I was doing before. Now I have a central human-readable place to keep all the program scheduling data outside of my crontab. I was working on my own solution, but I knew it was lacking some things, so when I found your implementation I was very impressed. I especially liked the way you killed all the processes. That was what I was looking for when I found your scripts. Your scripts were great, so I merged what I had with what you had done and I'm very pleased with the results.

I especially like your today script. It is so much nicer than what I was doing before. Now I have a central human-readable place to keep all the program scheduling data outside of my crontab.

]]> By: dannyman.toldme.com / HOWTO: Archive Audio Streams in to mp3 Files http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/comment-page-1/#comment-27 dannyman.toldme.com / HOWTO: Archive Audio Streams in to mp3 Files Fri, 03 Mar 2006 19:10:49 +0000 http://walkingtowel.org/2006/03/03/record-streaming-audio-with-linux-part-ii/#comment-27 [...] check out the comments that follow for tips and tricks, especially Shawn Dowler who has gone and wrote a page about his revised versions of thescripts. [...] [...] check out the comments that follow for tips and tricks, especially Shawn Dowler who has gone and wrote a page about his revised versions of thescripts. [...]

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