Convert Label text to LRC file

[bigboss97]

If you feel comfortable doing so, there's a "release candidate" for Audacity 3.0.0 available for testing. See: viewtopic.php?f=49&t=116221

I got RC6 portable. I haven't done that for such long that I'm not sure whether I've missed any step
I enabled mod-script-pipe, restarted and double checked enabled. When I ran my script I got nothing returned:

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PS E:\work\python\Audacity> python .\pipe_utf-8.py
pipe-test.py, running on windows
Write to  "\\.\pipe\ToSrvPipe"
Read from "\\.\pipe\FromSrvPipe"
-- Both pipes exist.  Good.
-- File to write to has been opened
-- File to read from has now been opened too

Send: >>>
GetInfo: Type=Labels Format=JSON"
 I read line:[
]
Rcvd: <<<

When I ran the same script on v2.3.3 I got:

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PS E:\work\python\Audacity> python .\pipe_utf-8.py
pipe-test.py, running on windows
Write to  "\\.\pipe\ToSrvPipe"
Read from "\\.\pipe\FromSrvPipe"
-- Both pipes exist.  Good.
-- File to write to has been opened
-- File to read from has now been opened too

Send: >>>
GetInfo: Type=Labels Format=JSON"
 I read line:[[
]
 I read line:[  [ 0,
]
 I read line:[    [
]
 I read line:[      [ 0, 0, "Hello" ] ] ] ]
]
 I read line:[BatchCommand finished: OK
]
 I read line:[
]
Rcvd: <<<
[
  [ 0,
    [
      [ 0, 0, "Hello" ] ] ] ]
BatchCommand finished: OK

Another strange thing also happened. When I restart v3 mod-script-pipe is reset to New (after v3 has been launched).

The script:

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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import io
import os
import sys


if sys.platform == 'win32':
    print("pipe-test.py, running on windows")
    TONAME = '\\\\.\\pipe\\ToSrvPipe'
    FROMNAME = '\\\\.\\pipe\\FromSrvPipe'
    EOL = '\r\n\0'
else:
    print("pipe-test.py, running on linux or mac")
    TONAME = '/tmp/audacity_script_pipe.to.' + str(os.getuid())
    FROMNAME = '/tmp/audacity_script_pipe.from.' + str(os.getuid())
    EOL = '\n'

print("Write to  \"" + TONAME +"\"")
if not os.path.exists(TONAME):
    print(" ..does not exist.  Ensure Audacity is running with mod-script-pipe.")
    sys.exit()

print("Read from \"" + FROMNAME +"\"")
if not os.path.exists(FROMNAME):
    print(" ..does not exist.  Ensure Audacity is running with mod-script-pipe.")
    sys.exit()

print("-- Both pipes exist.  Good.")

TOFILE = open(TONAME, 'w')
print("-- File to write to has been opened")
#FROMFILE = open(FROMNAME, 'rt')
FROMFILE = io.open( FROMNAME,'r', encoding='utf8', newline='\n')
print("-- File to read from has now been opened too\r\n")


def send_command(command):
    """Send a single command."""
    print("Send: >>> \n"+command)
    TOFILE.write(command + EOL)
    TOFILE.flush()

def get_response():
    """Return the command response."""
    result = ''
    line = ''
    while line != '\n':
        result += line
        line = FROMFILE.readline()
        print(" I read line:["+line+"]")
    return result

def do_command(command):
    """Send one command, and return the response."""
    send_command(command)
    response = get_response()
    print("Rcvd: <<< \n" + response)
    return response

def quick_test():
    """Example list of commands."""
#    do_command('Help: Command=Help')
#    do_command('Help: Command="GetInfo"')
    do_command('GetInfo: Type=Labels Format=JSON"')
    #do_command('SetPreference: Name=GUI/Theme Value=classic Reload=1')

quick_test()

[steve]

Testing with Audacity 3.0.0 (release version) on Linux, when I send the command (from Python "pipeclient.py"):

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GetInfo: Type=Labels Format=JSON"

I get:

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Sending command: GetInfo: Type=Labels Format=JSON"
[ 
  [ 1,
    [ 
      [ 0.435929, 0.435929, "hello" ],
      [ 2.13066, 3.33559, "world" ] ] ] ]
BatchCommand finished: OK

I got RC6 portable. I haven't done that for such long that I'm not sure whether I've missed any step

Now that Audacity 3.0.0 has been released, it's probably best to resume your Python work with the release version. See: https://www.audacityteam.org/download/windows/

[bigboss97]

Now that Audacity 3.0.0 has been released, it's probably best to resume your Python work with the release version. See: https://www.audacityteam.org/download/windows/

Got the same result on v3 release. Do I have to do something under Extra menu which I've done on my v2?

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PS E:\work\python\Audacity> python.exe .\pipe_utf-8.py
pipe-test.py, running on windows
Write to  "\\.\pipe\ToSrvPipe"
Read from "\\.\pipe\FromSrvPipe"
-- Both pipes exist.  Good.
-- File to write to has been opened
-- File to read from has now been opened too

Send: >>>
GetInfo: Type=Labels Format=JSON"
 I read line:[
]
Rcvd: <<<

[steve]

Do I have to do something under Extra menu which I've done on my v2?

Just ensure that "mod-script-pipe" is enabled in "Preferences > Modules".
(Note that Audacity has to be restarted after changing that setting)

Can you get any commands to work from Python? (for example, try sending "Play:")

[bigboss97]

Can you get any commands to work from Python? (for example, try sending "Play:")

"Play:" works, confirmed.

[bigboss97]

Just tried:
do_command('SetLabel: Text=Hello LabelIndex=1 Start=2 End=3')
that works.

[steve]

Does

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GetInfo: Type=Labels Format=JSON"

work for you with "pipeclient.py" (command line interface)?

[bigboss97]

Where can I find pipeclient.py?

[steve]

Where can I find pipeclient.py?

The same place as pipe_test.py. Here: https://github.com/audacity/audacity/tr ... piped-work
Documentation is in the file (See the Docstrings).

[bigboss97]

Great! pipeclient works and the unicode issue has been resolved.
Now I have to update my old script for v3. Thank you so much for your very patient help.

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Enter command or 'Q' to quit: GetInfo: Type=Labels Format=JSON
Sending command: GetInfo: Type=Labels Format=JSON
[
  [ 1,
    [
      [ 0, 0, "Hello" ],
      [ 1.31483, 1.31483, "小苹果" ] ] ] ]