That's great, thank you! I looked into fixing the bindings but I'm afraid
that's a bit beyond my comprehension at this moment.
On Fri, May 1, 2015 at 2:46 PM, Dan Dennedy <d...@dennedy.org> wrote:
> Alternatively, here is Python snippet from a project I did where I needed
> audio levels, but you have to use the level determined by this filter
> instead of your own code. Here is docs on the filter:
> http://www.mltframework.org/bin/view/MLT/FilterAudiolevel
> This filter is used to drive the peak meter in Shotcut to give you some
> frame-of-reference about its suitability for your task.
>
> mlt.mlt_log_set_level(0)
> mlt.Factory.init()
> profile = mlt.Profile(config.MLT_PROFILE)
>
> def mlt_open_file(filename):
> global profile
> producer = mlt.Producer(profile, filename)
> producer.attach(mlt.Filter(profile, 'audiolevel'))
> return producer
>
> def get_audio_level(frame):
> # get_waveform provides an easy way to make the audio fetched.
> frame.get_waveform(160, 120)
> return frame.get_double('meta.media.audio_level.0')
>
> On Fri, May 1, 2015 at 11:28 AM Pierre-Emmanuel Viau <
> pierre-emman...@timecodelab.com> wrote:
>
>> Hello, I am trying to write a simple test in order to get the audio level
>> at a certain frame. So far I have:
>>
>>
>> import mlt
>> import sys
>>
>> mlt.Factory.init()
>> profile = mlt.Profile( )
>> prod = mlt.Producer(profile, sys.argv[1])
>> profile.from_producer(prod)
>>
>> #test
>> i = 172
>> prod.seek(i)
>> frame = prod.get_frame()
>> print type(frame.get_audio(mlt.mlt_audio_float, 48000, 2, 1))
>>
>> This doesn't work, I get the following exception:
>> TypeError: in method 'Frame_get_audio', argument 2 of type
>> 'mlt_audio_format &'
>>
>> Do you have an idea of how to fix this?
>> Thank you!
>>
>>
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