Seeking help with bash command piping, redirection, e.g.

Author	All Replies
rolfp join:2001-09-12 Oakland, CA ·Comcast ·EarthLink	Seeking help with bash command piping, redirection, e.g. My treo phone creates voice memos that, when emailed as attachments, get formatted as a .qcp file. Not finding a linux player that can deal with this, I did find a decoder/encoder program owned by QualComm[SCO?] that has worked fine, so far: »www.qctconnect.com/downloads/pur···1.tar.gz [rolf@localhost test]$ ls 5-7-08 422 pm.qcp pvconv* [rolf@localhost test]$ ./pvconv 5-7-08\ 422\ pm.qcp [rolf@localhost test]$ ls 5-7-08 422 pm.qcp 5-7-08 422 pm.wav pvconv* [rolf@localhost test]$ play 5 5-7-08 422 pm.qcp 5-7-08 422 pm.wav [rolf@localhost test]$ play 5-7-08\ 422\ pm.wav Input File : '5-7-08 422 pm.wav' Sample Size : 16-bit (2 bytes) Sample Encoding: signed (2's complement) Channels : 1 Sample Rate : 8000 Time: 00:12.28 [00:00.00] of 00:12.28 (100% ) Samples out: 98.2k Clips: 0 Done. [rolf@localhost test]$ It makes a .wav that plays nice and clear. My dream is to create a one-line or script, even, that I'll try to have the browser (Seamonkey) call when such a .qcp file is encountered. I've tried various combinations but cannot get it to go. A short sampling: [rolf@localhost test]$ ls 5-7-08 422 pm.qcp pvconv* [rolf@localhost test]$ ./pvconv 5-7-08\ 422\ pm.qcp; play - play soxio: Can't open input file `-': unknown file type [rolf@localhost test]$ ls 5-7-08 422 pm.qcp 5-7-08 422 pm.wav pvconv* [rolf@localhost test]$ rm -f 5-7-08\ 422\ pm.wav* [rolf@localhost test]$ play "./pvconv 5-7-08\ 422\ pm.qcp" play soxio: Can't open input file `./pvconv 5-7-08\ 422\ pm.qcp': No such file or directory [rolf@localhost test]$ ls 5-7-08 422 pm.qcp pvconv* [rolf@localhost test]$ ./pvconv 5-7-08\ 422\ pm.qcp & play - [1] 6417 play soxio: Can't open input file `-': unknown file type [1]+ Done ./pvconv 5-7-08\ 422\ pm.qcp [rolf@localhost test]$ ls 5-7-08 422 pm.qcp 5-7-08 422 pm.wav pvconv* [rolf@localhost test]$ rm -f 5-7-08\ 422\ pm.wav* [rolf@localhost test]$ play < ./pvconv 5-7-08\ 422\ pm.qcp play soxio: Can't open input file `5-7-08 422 pm.qcp': unknown file type `qcp' [rolf@localhost test]$ ls 5-7-08 422 pm.qcp pvconv* [rolf@localhost test]$ Can I get some guidance, please?
	to forum · permalink · · 2008-05-09 10:07:30 ·
pablo2525 join:2003-06-23	I think I understand what you're trying to do. Let me recap and see if I've understood your request, you wish to unpack a `.qcq' file and have `play' play the unpacked .wav file. There are several ways to tackle this but first I might ask a question on what additional data `pvconv' might provide when executed. Please post the output of the following pvconv '-?' play '-?' I have `play' on my machine but I'd rather see what version you're using. If `pvconv' can't tell us what file it created, we'll need to take a different tack (create a temporary subdirectory, unpack there, look for any .wav file and play it). Please let me know. Cheers, -- pablo openSUSE 10.3/KDE ISP: TekSavvy DSL; backhauled via a 6KM wireless link
	to forum · permalink · · 2008-05-09 10:50:44 ·
evilghost Premium join:2003-11-22 Springville, AL ·Windstream edit: May 9th, @11:06AM	reply to rolfp Find all .qcp files, convert to WAV, remove qcp, play converted wav. find *.qcp -type f\|while read line;do ./pvconv "${line}" && rm -f "${line}" && echo "\"${line}\""\|sed 's/\.qcp/\.wav/i'\|xargs play;done
	to forum · permalink · · 2008-05-09 11:04:57 ·
evilghost Premium join:2003-11-22 Springville, AL edit: May 9th, @11:10AM	reply to rolfp Optionally even: find *.qcp -type f\|while read line;do pvconv "$line" - > /dev/dsp;done
	to forum · permalink · · 2008-05-09 11:09:08 ·
rolfp join:2001-09-12 Oakland, CA ·Comcast ·EarthLink	reply to pablo2525 Hi, I can get the wav file and play it, I just wanted to automate the process in order to give a 'helper application' to seamonkey or konqueror so the browser will be able to play a qcp file when I click on it. Thanks. [rolf@localhost test]$ ./pvconv '-?' ERROR: Unknown command line option '?' pvconv v3.1.0: converts PCM (mono, 8 kHz, 16-bit) wav file to PureVoice qcp file, and vice-versa. Copyright (C) 1998-2005 by QUALCOMM, Inc. All Rights Reserved Usage : pvconv [-h] [-v] [-r <rateset>] infile [outfile] -r : Select rate set: vfr = variable rate, full rate max (default) vhr = variable rate, half rate max ffr = fixed full rate fhr = fixed half rate -h : Display this help (usage) information -v : Display program version information infile : wav or qcp file to convert outfile : qcp or wav file For more information about QUALCOMM PureVoice(tm), visit <http://www.cdmatech.com/solutions/products/purevoice.jsp> [rolf@localhost test]$ play '-?' play: invalid option -- ? play: SoX v14.0.1 [..]
	to forum · permalink · · 2008-05-09 21:07:51 ·
rolfp join:2001-09-12 Oakland, CA ·Comcast ·EarthLink	reply to evilghost Hi, one of them works for me, the one from your first post but, it seems to me, something similar that can be called as a helper application can be done. I was thinking calling the conversion executable and piping stdout (?) to play would do the trick but not so much. Thanks. [rolf@localhost test]$ ls 5-7-08 422 pm.qcp pvconv* [rolf@localhost test]$ ./pvconv 5-7-08\ 422\ pm.qcp - > /dev/dsp ERROR: Unknown command line option '-' [..] [rolf@localhost test]$ ls 5-7-08 422 pm.qcp pvconv* [rolf@localhost test]$ find .qcp -type f\|while read line;do pvconv "$line" - > /dev/dsp;done bash: pvconv: command not found [rolf@localhost test]$ find .qcp -type f\|while read line;do ./pvconv "$line" - > /dev/dsp;done ERROR: Unknown command line option '-' [..] [rolf@localhost test]$ find .qcp -type f\|while read line;do ./pvconv "${line}" && rm -f "${line}" && echo "\"${line}\""\|sed 's/\.qcp/\.wav/i'\|xargs play;done Input File : '5-7-08 422 pm.wav' Sample Size : 16-bit (2 bytes) Sample Encoding: signed (2's complement) Channels : 1 Sample Rate : 8000 Time: 00:12.28 [00:00.00] of 00:12.28 (100% ) Samples out: 98.2k Clips: 0 Done. [rolf@localhost test]$ ls 5-7-08 422 pm.wav pvconv
	to forum · permalink · · 2008-05-09 21:19:00 ·
evilghost Premium join:2003-11-22 Springville, AL ·Windstream	reply to rolfp pvconv doesnt' support output to stdout, therefore, you're stuck writing a WAV file unless you write it to /dev/dsp directly, which may work but I doubt it... find *.qcp -type f\|while read line;do ./pvconv "$line" /dev/dsp;done
	to forum · permalink · · 2008-05-09 22:29:22 ·
rolfp join:2001-09-12 Oakland, CA ·Comcast ·EarthLink	Yeah, not having stdout seems to be a problem, thanks for the perspective. I've used your command that works for me in a modified fashion that, in my imagination, can be further developed to be called when a .qcp file is clicked in seamonkey or konqueror. Both use %u for this sort of thing and there is an exec statement documented for konqueror, so I'm going to try along those lines after work. [rolf@localhost test]$ pwd /home/rolf/tarballs/pure_voice_conv/test [rolf@localhost test]$ ls 5-7-08 422 pm.qcp pvconv* [rolf@localhost test]$ rm -rf ~/tmp/test/; mkdir ~/tmp/test/; cp 5-7-08\ 422\ pm.qcp ~/tmp/test/; find ~/tmp/test/ -type f -name .qcp \|while read line;do ~/tarballs/pure_voice_conv/pvconv "${line}" && rm -f "${line}" && echo "\"${line}\""\|sed 's/\.qcp/\.wav/i'\|xargs play;done Input File : '/home/rolf/tmp/test/5-7-08 422 pm.wav' Sample Size : 16-bit (2 bytes) Sample Encoding: signed (2's complement) Channels : 1 Sample Rate : 8000 Time: 00:12.28 [00:00.00] of 00:12.28 (100% ) Samples out: 98.2k Clips: 0 Done. [rolf@localhost test]$ ls 5-7-08 422 pm.qcp pvconv [rolf@localhost test]$ ls ~/tmp/test/ 5-7-08 422 pm.wav
	to forum · permalink · · 2008-05-10 11:18:16 ·
rolfp join:2001-09-12 Oakland, CA ·Comcast ·EarthLink	reply to rolfp Well, I've made a text file application and associated it with .qcp in konqueror: rm -rf ~/tmp/test/; mkdir ~/tmp/test/; cp %u ~/tmp/test/; find ~/tmp/test/ -type f -name *.qcp \|while read line;do ~/tarballs/pure_voice_conv/pvconv "${line}" && rm -f "${line}" && echo "\"${line}\""\|sed 's/\.qcp/\.wav/i'\|xargs play;done The first two commands get executed but my attempt to use %u, apparently, is not working: [rolf@localhost ~]$ ll tmp/test/ total 0 [rolf@localhost ~]$ ll tmp/ \| grep test drwxr-xr-x 2 rolf rolf 48 2008-05-10 09:32 test/ [rolf@localhost ~]$ ll tmp/test/ total 0 [rolf@localhost ~]$ ll tmp/ \| grep test drwxr-xr-x 2 rolf rolf 48 2008-05-11 07:50 test/ The two listings were done just before and just after clicking on the .qcp file in konqueror.
	to forum · permalink · · 2008-05-11 10:57:21 ·


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