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Upload streamlit_app.py
Browse files- streamlit_app.py +1 -144
streamlit_app.py
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import streamlit as st
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import tempfile
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from faster_whisper import WhisperModel
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import textwrap
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from datetime import timedelta
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from xml.sax.saxutils import escape
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st.title("🌍 VO to Subtitle Generator — Multi-languages Version")
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def format_time(seconds):
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td = timedelta(seconds=seconds)
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result = str(td)[:11].replace(".", ",")
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return result if "," in result else result + ",000"
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def generate_srt(segments, max_chars, max_lines):
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srt_text = ""
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count = 1
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for seg in segments:
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start = seg.start
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end = seg.end
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text = seg.text.strip()
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lines = textwrap.wrap(text, width=max_chars)
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grouped = [lines[i:i+max_lines] for i in range(0, len(lines), max_lines)]
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chunk_count = len(grouped)
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duration = end - start
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chunk_duration = duration / chunk_count if chunk_count > 0 else duration
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for j, chunk in enumerate(grouped):
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chunk_start = start + j * chunk_duration
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chunk_end = chunk_start + chunk_duration
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timestamp = f"{format_time(chunk_start)} --> {format_time(chunk_end)}"
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content = "\n".join(chunk)
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srt_text += f"{count}\n{timestamp}\n{content}\n\n"
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count += 1
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return srt_text
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def generate_fcpxml(segments, version):
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xml = [f'<?xml version="1.0" encoding="UTF-8"?>',
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f'<!DOCTYPE fcpxml>',
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f'<fcpxml version="{version}">',
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' <resources>',
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' <format id="r1" name="FFVideoFormat1080p30" frameDuration="100/3000s" width="1920" height="1080"/>',
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' <effect id="r2" name="Basic Title" uid=".../Effects.localized/Basic Titles.localized/Basic Title.localized/Basic Title.moti"/>',
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' </resources>',
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' <library>',
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' <event name="Transcription">',
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' <project name="Subtitles">',
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f' <sequence duration="{round(segments[-1].end, 2)}s" format="r1" tcStart="0s" tcFormat="NDF">',
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' <spine>']
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for seg in segments:
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start = round(seg.start, 2)
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duration = round(seg.end - seg.start, 2)
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text = escape(seg.text.strip())
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xml.append(
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f' <title lane="1" offset="{start}s" ref="r2" duration="{duration}s" start="{start}s">'
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f' <text>{text}</text>'
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f' </title>'
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)
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xml.extend([' </spine>',
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' </sequence>',
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' </project>',
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' </event>',
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' </library>',
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'</fcpxml>'])
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return '\n'.join(xml)
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# --- Sidebar ---
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with st.sidebar:
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st.header("⚙️ Settings")
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uploaded_file = st.file_uploader("Upload MP3 or WAV", type=["mp3", "wav"])
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model_size = st.selectbox("Model Size", ["tiny", "base", "small", "medium"])
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layout = st.selectbox("Video Layout", ["Horizontal (37 chars)", "Vertical (25 chars)"])
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lines = st.selectbox("Lines per Subtitle", [1, 2], index=1)
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language_map = {
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"Auto": None,
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"Arabic": "ar",
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"English": "en",
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"French": "fr",
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"Farsi": "fa",
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"Spanish": "es"
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}
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language = st.selectbox("Language", list(language_map.keys()))
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export_format = st.selectbox("Export Format", ["srt", "fcpxmld"])
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fcpxml_version = st.selectbox("FCPXML Version", ["1.13", "1.12", "1.11"], index=0) if export_format == "fcpxmld" else None
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if 'subtitle_data' not in st.session_state:
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st.session_state.subtitle_data = ""
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st.session_state.text_dir = "rtl"
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st.session_state.generated = False
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if uploaded_file and st.button("🔁 Generate Subtitle"):
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with st.spinner("Transcribing with Whisper..."):
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with tempfile.NamedTemporaryFile(delete=False) as temp_audio:
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temp_audio.write(uploaded_file.read())
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temp_audio.flush()
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whisper = WhisperModel(model_size, device="cpu", compute_type="int8")
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segments_gen, _ = whisper.transcribe(temp_audio.name, language=language_map[language])
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segments = list(segments_gen)
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st.session_state.segments = segments
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max_chars = 25 if "Vertical" in layout else 37
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max_lines = int(lines)
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if export_format == "srt":
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st.session_state.subtitle_data = generate_srt(segments, max_chars, max_lines)
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else:
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st.session_state.subtitle_data = generate_fcpxml(segments, fcpxml_version)
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st.session_state.generated = True
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# --- Post Processing ---
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if st.session_state.generated and st.session_state.subtitle_data:
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col1, col2 = st.columns([1, 6])
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with col1:
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st.write("Text Direction:")
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if st.button("⬅️ RTL"):
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st.session_state.text_dir = "rtl"
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if st.button("➡️ LTR"):
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st.session_state.text_dir = "ltr"
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with col2:
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st.markdown("### ✏️ Edit Before Download")
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preview_html = f'''
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<textarea id="subtitle_editor" name="subtitle_editor"
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style="width: 100%; height: 300px; padding: 1.5em 2em;
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border: 1px solid #ccc; border-radius: 8px;
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font-family: monospace; font-size: 14px;
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direction: {st.session_state.text_dir}; white-space: pre-wrap;">{st.session_state.subtitle_data}</textarea>
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<script>
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const editor = document.getElementById('subtitle_editor');
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editor.addEventListener('input', () => {{
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window.subtitleEdited = editor.value;
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}});
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window.subtitleEdited = editor.value;
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</script>
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'''
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st.components.v1.html(preview_html, height=360)
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st.download_button(
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label="⬇️ Download Subtitle",
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data=st.session_state.subtitle_data,
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file_name="output." + ("srt" if export_format == "srt" else "fcpxmld"),
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mime="text/plain"
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)
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<actual code from previous cell, omitted here for brevity>
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