# than only discovering the problem after transcoding. # early if we can't read tags from the source file, rather # This has no effect if successful, but will throw an error run () can be used instead of calling subprocess manually. There's probably a better way to silence ffmpeg, in which case. It runs with subprocess.Popen to silence stdout/stderr. ('Transcoding: %s -> %s', repr(self.src), repr(st)) In order to know the progress percentage, it uses the duration reported by ffprobe, since the normal progress info doesn't seem to contain such info. Plt.savefig(dirname+ '/'+outname+ '.png')Īny updates of this script will appear on GitHub.Def transcode(self, ffmpeg='ffmpeg', dry_run=False): Plt.specgram(sound_info, Fs=frame_rate, cmap= 'gnuplot') Plt.title( 'Spectrogram of: %r' % os.path.basename(music_file)) 5), dpi= 300)Īx.t_major_locator(ticker.MultipleLocator( 30))Īx.t_minor_locator(ticker.MultipleLocator( 10))Īx.t_major_locator(ticker.MultipleLocator( 1000))Īx.t_minor_locator(ticker.MultipleLocator( 500))Īx.tick_params(axis= 'both', direction= 'inout') Plt.rcParams = 'black' plt.rcParams = 'black' plt.rcParams = 'white' plt.rcParams = 'white' plt.rcParams = 'white' plt.rcParams = 'white' plt.rcParams = 'white' plt.rcParams = 'white' fig = plt.figure(num= None, figsize=( 12, 7. Sound_info, frame_rate = get_wav_info(wavname) # Define function for plotting def graph_spectrogram(wavname): Sound_info = np.fromstring(frames, 'int16')

# Get file info def get_wav_info(wavname): # Create spectogram print bcolors.FAIL + ' -> CREATE SPECTOGRAM ' + bcolors.ENDC Process = subprocess.Popen(command.split(), stdout=subprocess.PIPE) # Convert music file to wav print bcolors.FAIL + ' -> CONVERTING MUSIC FILE TO WAV ' + bcolors.ENDCĬommand= 'ffmpeg -i %s -ar 44100 -ac 1 %s' % (music_file_tmp, wavname) # ffmpeg does not work with spaces, copy to tmp file music_file_tmp=music_file.replace( ' ', '_') makeString Try to open with these settings try: self.

output '': return False Make the command string ffmpegString self. (in a seperate thread.) def convert (self): Check if options are valid if self. Wavname=(dirname+ '/'+outname+ '.wav').replace( ' ', '_') Calling subprocess.Popen() Convert - Calls FFMPEG with current settings. # Define output file name outname=os.path.splitext(os.path.basename(music_file)) # !/usr/bin/env python # Create spectogram from audio file # Libraries import os import io import json import multiprocessing import os import shutil import subprocess import tempfile from bidict import bidict from re import.

Subprocess python ffmpeg