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# !pip install youtube-dl
from __future__ import unicode_literals
import youtube_dl
from pydub import AudioSegment
from pyannote.audio import Pipeline
import re
import webvtt
import whisper
import os
from pydub.utils import which
import ffmpeg
import webvtt
import pprint
from urllib.error import HTTPError
import subprocess
import gradio as gr
pipeline = Pipeline.from_pretrained("pyannote/speaker-diarization", use_auth_token="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")
def Transcribe(audio="temp_audio.wav"):
def millisec(timeStr):
spl = timeStr.split(":")
s = (int)((int(spl[0]) * 60 * 60 + int(spl[1]) * 60 + float(spl[2]) )* 1000)
return s
def preprocess(audio):
t1 = 0 * 1000
t2 = 20 * 60 * 1000
newAudio = AudioSegment.from_wav(audio)
a = newAudio[t1:t2]
spacermilli = 2000
spacer = AudioSegment.silent(duration=spacermilli)
newAudio = spacer.append(a, crossfade=0)
newAudio.export(audio, format="wav")
return spacermilli, spacer
def diarization(audio):
as_audio = AudioSegment.from_wav(audio)
DEMO_FILE = {'uri': 'blabal', 'audio': audio}
dz = pipeline(DEMO_FILE)
with open(f"diarization_{audio}.txt", "w") as text_file:
text_file.write(str(dz))
dz = open(f"diarization_{audio}.txt").read().splitlines()
dzList = []
for l in dz:
start, end = tuple(re.findall('[0-9]+:[0-9]+:[0-9]+\.[0-9]+', string=l))
start = millisec(start)
end = millisec(end)
lex = re.findall('(SPEAKER_[0-9][0-9])', string=l)[0]
dzList.append([start, end, lex])
sounds = spacer
segments = []
dz = open(f"diarization_{audio}.txt").read().splitlines()
for l in dz:
start, end = tuple(re.findall('[0-9]+:[0-9]+:[0-9]+\.[0-9]+', string=l))
start = millisec(start)
end = millisec(end)
segments.append(len(sounds))
sounds = sounds.append(as_audio[start:end], crossfade=0)
sounds = sounds.append(spacer, crossfade=0)
sounds.export(f"dz_{audio}.wav", format="wav")
return f"dz_{audio}.wav", dzList, segments
def transcribe(dz_audio):
model = whisper.load_model("base")
result = model.transcribe(dz_audio)
# for _ in result['segments']:
# print(_['start'], _['end'], _['text'])
captions = [[((caption["start"]*1000)), ((caption["end"]*1000)), caption["text"]] for caption in result['segments']]
conversation = []
for i in range(len(segments)):
idx = 0
for idx in range(len(captions)):
if captions[idx][0] >= (segments[i] - spacermilli):
break;
while (idx < (len(captions))) and ((i == len(segments) - 1) or (captions[idx][1] < segments[i+1])):
c = captions[idx]
start = dzList[i][0] + (c[0] -segments[i])
if start < 0:
start = 0
idx += 1
if not len(conversation):
conversation.append([dzList[i][2], c[2]])
elif conversation[-1][0] == dzList[i][2]:
conversation[-1][1] += c[2]
else:
conversation.append([dzList[i][2], c[2]])
#print(f"[{dzList[i][2]}] {c[2]}")
return ("".join([f"{speaker} --> {text}\n" for speaker, text in conversation]))
spacermilli, spacer = preprocess(audio)
dz_audio, dzList, segments = diarization(audio)
t_text = transcribe(dz_audio)
try:
os.remove("temp_audio.wav")
except OSError:
pass
try:
os.remove("dz_temp_audio.wav")
except OSError:
pass
try:
os.remove(f"diarization_{audio}.txt")
except OSError:
pass
return t_text
def VideoTranscribe(video):
command = f"ffmpeg -i {video} -ab 160k -ac 2 -ar 44100 -vn temp_audio.wav"
subprocess.call(command, shell=True)
return Transcribe()
def YoutubeTranscribe(URL, retries = 5):
if retries:
if "youtu" not in URL.lower():
raise gr.Error(f"{URL} is not a valid youtube URL.")
else:
try:
os.remove("temp_audio.wav")
except OSError:
pass
ydl_opts = {
'format': 'bestaudio/best',
'outtmpl': 'temp_audio.%(ext)s',
'postprocessors': [{
'key': 'FFmpegExtractAudio',
'preferredcodec': 'wav',
}],
}
try:
with youtube_dl.YoutubeDL(ydl_opts) as ydl:
ydl.download([URL])
except:
return YoutubeTranscribe(URL, retries-1)
stream = ffmpeg.input('temp_audio.m4a')
stream = ffmpeg.output(stream, 'temp_audio.wav')
try:
os.remove("temp_audio.m4a")
except OSError:
pass
return Transcribe()
else:
raise gr.Error(f"Unable to get video from {URL}")
with gr.Blocks() as i:
with gr.Column():
video = gr.Video()
text = gr.Textbox(label="Youtube Link", placeholder="https://www.youtube.com/watch?v=GECcjrYHH8w")
btn = gr.Button("Run")
with gr.Column():
output = gr.Textbox(label="Transcribed Text", lines=10)
if not video and not text:
raise gr.Error("Either input url or video (not both)")
else:
btn.click(fn=YoutubeTranscribe, inputs=text, outputs=output)
i.launch()
# YoutubeTranscribe('https://www.youtube.com/watch?v=GECcjrYHH8w') |