jeffmikels/timecode_tools

Implements LTC and MTC versions of the SMPTE timecode spec.

Depends on:

• mido -- for python midi commands
• python-rtmidi - required by mido
• timecode -- for timecode manipulation

QuickStart

run generate_ltc.py or generate_mtc.py from the command line

use --help to get command line options

Scripts for generating LTC wave files ahead of time and MTC MIDI events in realtime.

timecode_tools's Issues

ValueError: Timecode.frames should be a positive integer bigger than zero, not 0

hallo, im using mtc_listener.py and everything works fine, just when i rewind my composition to beginning, i get crash with this:
.
.
.
QF: 00:00:08:13
QF: 00:00:08:15
QF: 00:00:08:17
QF: 00:00:08:19
QF: 00:00:08:21
FF: 00:00:08:23
Traceback (most recent call last):
File "/home/kubriel/Downloads/timecode_tools/./mtc_listener.py", line 43, in
main()
File "/home/kubriel/.local/lib/python3.9/site-packages/click/core.py", line 1128, in call
return self.main(*args, **kwargs)
File "/home/kubriel/.local/lib/python3.9/site-packages/click/core.py", line 1053, in main
rv = self.invoke(ctx)
File "/home/kubriel/.local/lib/python3.9/site-packages/click/core.py", line 1395, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/home/kubriel/.local/lib/python3.9/site-packages/click/core.py", line 754, in invoke
return __callback(*args, **kwargs)
File "/home/kubriel/Downloads/timecode_tools/./mtc_listener.py", line 40, in main
listen(port)
File "/home/kubriel/Downloads/timecode_tools/./mtc_listener.py", line 31, in listen
handle_message(msg)
File "/home/kubriel/Downloads/timecode_tools/./mtc_listener.py", line 19, in handle_message
tc = tools.mtc_decode(data)
File "/home/kubriel/Downloads/timecode_tools/tools.py", line 146, in mtc_decode
return Timecode(fps, frames=total_frames)
File "/home/kubriel/.local/lib/python3.9/site-packages/timecode/init.py", line 80, in init
self.frames = frames
File "/home/kubriel/.local/lib/python3.9/site-packages/timecode/init.py", line 111, in frames
raise ValueError(
ValueError: Timecode.frames should be a positive integer bigger than zero, not 0

Project

Good afternoon, check the project. Do you have any to convert LTC to MIDI? And if you have an ltc script to do more in real time than just a wav file?

License?

Hi,

I plan on using snippets of your code for a project: https://github.com/EMATech/Network-Studio-Clock

Could you please clarify under which license your code is released?
Ideally, this would be released under MIT just like the libraries it depends upon.
Unless I missed it, I’ve not been able to find this information anywhere.

Thanks!

TypeError: Timecode.frames in mtc_decode

Environment:

• Windows 10
• python 3.9.10
• mido 1.2.10
• python-rtmidi 1.4.9
• timecode 1.3.1

Input: 24 fps quarter frame

While running mtc_listener.py call of mtc_decode rises error:

  File "***\timecode_tools\mtc_listener.py", line 46, in <module>
    main()
  File "***\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 1128, in __call__
    return self.main(*args, **kwargs)
  File "***\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 1053, in main
    rv = self.invoke(ctx)
  File "***\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 1395, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "***\AppData\Local\Programs\Python\Python39\lib\site-packages\click\core.py", line 754, in invoke
    return __callback(*args, **kwargs)
  File "***\timecode_tools\mtc_listener.py", line 43, in main
    listen(port)
  File "***\timecode_tools\mtc_listener.py", line 33, in listen
    handle_message(msg)
  File "***\timecode_tools\mtc_listener.py", line 15, in handle_message
    tc = tools.mtc_decode_quarter_frames(quarter_frames)
  File "***\timecode_tools\tools.py", line 208, in mtc_decode_quarter_frames
    return mtc_decode(mtc_bytes)
  File ***\timecode_tools\tools.py", line 158, in mtc_decode
    return Timecode(fps, frames=total_frames)
  File "***\Local\Programs\Python\Python39\lib\site-packages\timecode\__init__.py", line 80, in __init__
    self.frames = frames
  File "***\AppData\Local\Programs\Python\Python39\lib\site-packages\timecode\__init__.py", line 105, in frames
    raise TypeError(
TypeError: Timecode.frames should be a positive integer bigger than zero, not a float

Indeed total_frames is a float value, and frames value is forced to be int:

    @frames.setter
    def frames(self, frames):
        """setter for the _frames attribute

        :param int frames: A positive int bigger than zero showing the number
          of frames that this TimeCode represents.
        :return:
        """
        # validate the frames value
        if not isinstance(frames, int):
            raise TypeError(
                "%s.frames should be a positive integer bigger "
                "than zero, not a %s" % (self.__class__.__name__, frames.__class__.__name__)
            )

Changing return Timecode(fps, frames=total_frames) to return Timecode(fps, frames=int(total_frames)) fixes this issue.

Cheers!

program doesn't start

File "./timecode_generator.py", line 258
print(f' COMPUTING: {total_samples}:{sample} -- {pct}%', end='\r')