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DrishtiSharma
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79a2eeb
Delete app.py
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app.py
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from collections import deque
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import streamlit as st
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import torch
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from streamlit_player import st_player
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from transformers import AutoModelForCTC, Wav2Vec2Processor
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from streaming import ffmpeg_stream
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device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
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player_options = {
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"events": ["onProgress"],
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"progress_interval": 200,
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"volume": 1.0,
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"playing": True,
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"loop": False,
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"controls": False,
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"muted": False,
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"config": {"youtube": {"playerVars": {"start": 1}}},
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}
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# disable rapid fading in and out on `st.code` updates
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st.markdown("<style>.element-container{opacity:1 !important}</style>", unsafe_allow_html=True)
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@st.cache(hash_funcs={torch.nn.parameter.Parameter: lambda _: None})
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def load_model(model_path="facebook/wav2vec2-large-robust-ft-swbd-300h"):
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processor = Wav2Vec2Processor.from_pretrained(model_path)
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model = AutoModelForCTC.from_pretrained(model_path).to(device)
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return processor, model
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processor, model = load_model()
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def stream_text(url, chunk_duration_ms, pad_duration_ms):
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sampling_rate = processor.feature_extractor.sampling_rate
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# calculate the length of logits to cut from the sides of the output to account for input padding
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output_pad_len = model._get_feat_extract_output_lengths(int(sampling_rate * pad_duration_ms / 1000))
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# define the audio chunk generator
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stream = ffmpeg_stream(url, sampling_rate, chunk_duration_ms=chunk_duration_ms, pad_duration_ms=pad_duration_ms)
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leftover_text = ""
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for i, chunk in enumerate(stream):
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input_values = processor(chunk, sampling_rate=sampling_rate, return_tensors="pt").input_values
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with torch.no_grad():
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logits = model(input_values.to(device)).logits[0]
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if i > 0:
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logits = logits[output_pad_len : len(logits) - output_pad_len]
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else: # don't count padding at the start of the clip
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logits = logits[: len(logits) - output_pad_len]
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predicted_ids = torch.argmax(logits, dim=-1).cpu().tolist()
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if processor.decode(predicted_ids).strip():
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leftover_ids = processor.tokenizer.encode(leftover_text)
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# concat the last word (or its part) from the last frame with the current text
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text = processor.decode(leftover_ids + predicted_ids)
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# don't return the last word in case it's just partially recognized
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text, leftover_text = text.rsplit(" ", 1)
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yield text
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else:
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yield leftover_text
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leftover_text = ""
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yield leftover_text
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def main():
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state = st.session_state
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st.header("Video ASR Streamlit from Youtube Link")
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with st.form(key="inputs_form"):
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# Our worlds best teachers on subjects of AI, Cognitive, Neuroscience for our Behavioral and Medical Health
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ytSeanKelly="https://youtu.be/cC1HszE5Hcw?list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&t=8984"
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ytSamHarris="https://www.youtube.com/watch?v=4dC_nRYIDZU&list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&index=2"
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ytJohnAbramson="https://www.youtube.com/watch?v=arrokG3wCdE&list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&index=3"
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ytElonMusk="https://www.youtube.com/watch?v=DxREm3s1scA&list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&index=4"
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ytJeffreyShainline="https://www.youtube.com/watch?v=EwueqdgIvq4&list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&index=5"
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ytJeffHawkins="https://www.youtube.com/watch?v=Z1KwkpTUbkg&list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&index=6"
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ytSamHarris="https://youtu.be/Ui38ZzTymDY?list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L"
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ytSamHarris="https://youtu.be/4dC_nRYIDZU?list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&t=7809"
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ytSamHarris="https://youtu.be/4dC_nRYIDZU?list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&t=7809"
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ytSamHarris="https://youtu.be/4dC_nRYIDZU?list=PLHgX2IExbFouJoqEr8JMF5MbZSbyC91-L&t=7809"
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state.youtube_url = st.text_input("YouTube URL", ytSeanKelly)
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state.chunk_duration_ms = st.slider("Audio chunk duration (ms)", 2000, 10000, 3000, 100)
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state.pad_duration_ms = st.slider("Padding duration (ms)", 100, 5000, 1000, 100)
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submit_button = st.form_submit_button(label="Submit")
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if submit_button or "asr_stream" not in state:
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# a hack to update the video player on value changes
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state.youtube_url = (
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state.youtube_url.split("&hash=")[0]
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+ f"&hash={state.chunk_duration_ms}-{state.pad_duration_ms}"
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)
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state.asr_stream = stream_text(
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state.youtube_url, state.chunk_duration_ms, state.pad_duration_ms
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)
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state.chunks_taken = 0
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state.lines = deque([], maxlen=100) # limit to the last n lines of subs
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player = st_player(state.youtube_url, **player_options, key="youtube_player")
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if "asr_stream" in state and player.data and player.data["played"] < 1.0:
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# check how many seconds were played, and if more than processed - write the next text chunk
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processed_seconds = state.chunks_taken * (state.chunk_duration_ms / 1000)
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if processed_seconds < player.data["playedSeconds"]:
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text = next(state.asr_stream)
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state.lines.append(text)
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state.chunks_taken += 1
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if "lines" in state:
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# print the lines of subs
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st.code("\n".join(state.lines))
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if __name__ == "__main__":
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main()
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