The semicolon between commands is only meaningful in a shell. It tells
the shell to run the three programs sequentially. With OSProcess the
semicolon and the rest of the line is passed to the first program, which
gives you the error.
So the easiest way to fix it is to run the three programs separately. Just
execute the first, wait till it exits, then start the second, etc.
Levente
On Thu, 11 Sep 2014, JohnReed Maffeo wrote:
I have an application that has been running for many months which uses
OSProcess to run a program to record an audio stream. The content is available
in two flavors, an mps stream that is recorded in real
time and an flv which is recorded in less than a minute. I am working to
refactor the working method to use the faster recording option.
I have a methods to create a command line string which I execute using OS
process. The command to record the mp3 is simple,
the command to record the flv stream is more complex and this may be the source
of my problem, but I am not sure and I don't know how to debug it.
If I copy either command to a terminal screen and run them there, the programs
execute as expected.
When I run them in Squeak, the mp3 produces results, the flv dies.
The biggest difference between the two command lines is the use of semi-colon
command separators and double quotes in the flv example.
The command line for the mp3 is : (exitStatus 0)
/opt/local/bin/ffmpeg -i
mmsh://wm.bbc.co.uk/wms/prod_rb2_wm_wma_low_intl/p025mlpk_b007gwqn_1410010018428.wma
-y -map_metadata -1 -acodec libmp3lame -ab 128k
/Volumes/MediaVault/BBC/Baldi.4.4.6-NoSin.mp3
The command line for the flv is: (exitStatus 256)
/opt/local/bin/rtmpdump
-r"rtmp://bbcodspdns.fcod.llnwd.net:1935/a5999/e1?as=adobe-hmac-sha256&av=1&te=connect&mp=prod_rb2_flv_aac_low_intl/iplayerstream/p025mlpk_b007gwqn_1410009892525.mp4&et=1410418602&fmta-token=9e6e9980cc1fc44517
3a649286ea33b76018f14be91bebdc361b035283304013"
-a"a5999/e1?as=adobe-hmac-sha256&av=1&te=connect&mp=prod_rb2_flv_aac_low_intl/iplayerstream/p025mlpk_b007gwqn_1410009892525.mp4&et=1410418602&fmta-token=9e6e9980cc1fc445173a649286ea33b76018f14be91bebdc361b0352
83304013" -y
"mp4:prod_rb2_flv_aac_low_intl/iplayerstream/p025mlpk_b007gwqn_1410009892525.mp4" -o
/Volumes/MediaVault/BBC/490947196.flv ; ffmpeg -loglevel quiet -i
/Volumes/MediaVault/BBC/490947196.flv -c
copy -copyts /Volumes/MediaVault/BBC/Baldi.4.4.6-NoSin.mp4 ; rm
/Volumes/MediaVault/BBC/490947196.flv
The command generated by OSProcess may be:
/bin/sh -c rtmpdump
-r"rtmp://bbcodspdns.fcod.llnwd.net:1935/a5999/e1?as=adobe-hmac-sha256&av=1&te=connect&mp=prod_rb2_flv_aac_low_intl/iplayerstream/p025mlpk_b007gwqn_1410009892525.mp4&et=1410413706&fmta-token=ccb5e3e42d2288246c
6d083b34cdc49d43bb94c0a0e536bf9a14fbea2857d4d3"
-a"a5999/e1?as=adobe-hmac-sha256&av=1&te=connect&mp=prod_rb2_flv_aac_low_intl/iplayerstream/p025mlpk_b007gwqn_1410009892525.mp4&et=1410413706&fmta-token=ccb5e3e42d2288246c6d083b34cdc49d43bb94c0a0e536bf9a14fbea
2857d4d3" -y
"mp4:prod_rb2_flv_aac_low_intl/iplayerstream/p025mlpk_b007gwqn_1410009892525.mp4" -o
/Volumes/MediaVault/BBC/960136998.flv ; ffmpeg -loglevel quiet -i
/Volumes/MediaVault/BBC/960136998.flv -c
copy -copyts /Volumes/MediaVault/BBC/Baldi.4.4.6-NoSin.mp4 ; rm
/Volumes/MediaVault/BBC/960136998.flv
if this is correct, when I run it at the command line, I get an error:
RTMPDump 2.4 (c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
ERROR: You must specify a hostname (--host) or url (-r
"rtmp://host[:port]/playpath") containing a hostname rm:
/Volumes/MediaVault/BBC/960136998.flv: No such file or directory
but when I inspect the instance of ExternalUnixOSProcess > osp2 :=
ExternalUnixOSProcess command: cmdLine. I don't see anything in
the stdout or stderror.
Thanks for any suggestions,
jrm
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