mirror of
https://github.com/R0m1k3/Socialflow.git
synced 2026-10-11 17:26:45 +02:00
646 lines
22 KiB
Python
646 lines
22 KiB
Python
from fastapi import FastAPI, HTTPException, Header
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from pydantic import BaseModel
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from typing import Optional
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import uvicorn
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import subprocess
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import os
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import uuid
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import base64
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import requests
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import shutil
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from pathlib import Path
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import edge_tts
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import re
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import emoji
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import time
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app = FastAPI()
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API_KEY = os.environ.get("API_KEY", "default-key")
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TEMP_DIR = Path("/tmp/ffmpeg_processing")
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TEMP_DIR.mkdir(parents=True, exist_ok=True)
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# List available fonts for debugging
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try:
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print("📋 Available fonts:")
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subprocess.run(["fc-list"], check=True)
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except Exception as e:
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print(f"⚠️ Failed to list fonts: {e}")
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# Font path for text overlay (installed via fonts-dejavu in Dockerfile)
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# Robust font detection
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def get_font_path():
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possible_paths = [
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"/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf",
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"/usr/share/fonts/truetype/dejavu-core/DejaVuSans.ttf",
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"/usr/share/fonts/TTF/DejaVuSans.ttf",
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"/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf",
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"/usr/share/fonts/truetype/msttcorefonts/Arial.ttf"
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]
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for path in possible_paths:
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if os.path.exists(path):
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print(f"✅ Found font at: {path}")
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return path
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# Fallback: search anywhere in /usr/share/fonts
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print("⚠️ Specific font not found, searching recursively...")
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try:
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for root, dirs, files in os.walk("/usr/share/fonts"):
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for file in files:
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if file.endswith(".ttf") and ("Sans" in file or "Arial" in file):
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full_path = os.path.join(root, file)
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print(f"✅ Found fallback font at: {full_path}")
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return full_path
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except Exception as e:
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print(f"⚠️ Error searching for fonts: {e}")
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print("❌ No TTF font found! Text overlay may fail.")
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return "font.ttf" # Hope for the best or let ffmpeg fail
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FONT_PATH = get_font_path()
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class ReelRequest(BaseModel):
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video_base64: Optional[str] = None
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video_url: Optional[str] = None
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text: Optional[str] = None
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music_id: Optional[str] = None
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music_url: Optional[str] = None
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word_duration: float = 0.6
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font_size: int = 64
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music_volume: float = 0.25
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tts_enabled: bool = False
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tts_voice: str = "fr-FR-VivienneMultilingualNeural"
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draw_text: bool = True
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stabilize: bool = False # Stabilisation vidéo via vidstab
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def clean_text_for_tts(text: str) -> str:
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# 1. Remove emojis
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text = emoji.replace_emoji(text, replace="")
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# 2. Remove hashtags (e.g. #viral #reels)
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text = re.sub(r"#\w+", "", text)
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# 3. Cleanup whitespace
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return " ".join(text.split())
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async def generate_tts_with_subs(
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text: str, voice: str, audio_path: Path, vtt_path: Path
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):
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"""Generate TTS audio with subtitles, with retry and fallback voices."""
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import asyncio
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# Determine gender of requested voice to choose appropriate fallbacks
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is_male = any(name in voice for name in ["Remy", "Henri", "Paul"])
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if is_male:
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fallback_voices = [
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voice, # Try requested voice first
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"fr-FR-HenriNeural", # Primary Male fallback
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"fr-FR-PaulNeural", # Secondary Male fallback
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]
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else:
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fallback_voices = [
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voice, # Try requested voice first
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"fr-FR-VivienneNeural", # Primary Female fallback
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"fr-FR-DeniseNeural", # Secondary Female fallback
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]
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# Always add English fallback as last resort
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fallback_voices.append("en-US-JennyNeural")
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# Remove duplicates while preserving order
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fallback_voices = list(dict.fromkeys(fallback_voices))
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last_error = None
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for attempt_voice in fallback_voices:
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try:
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print(f"🔊 TTS attempt with voice: {attempt_voice}")
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communicate = edge_tts.Communicate(text, attempt_voice)
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# Use the simple save() method which is more reliable
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await asyncio.wait_for(communicate.save(str(audio_path)), timeout=60.0)
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# Check if file was created and has content
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if audio_path.exists() and audio_path.stat().st_size > 0:
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print(f"✅ TTS audio saved: {audio_path.stat().st_size} bytes")
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# Generate a simple VTT file with the full text
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# (word-by-word sync would require working SubMaker)
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generate_simple_vtt(text, vtt_path)
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print(f"✅ TTS success with voice: {attempt_voice}")
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return # Success!
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else:
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print(f"⚠️ Audio file empty or missing with voice: {attempt_voice}")
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except asyncio.TimeoutError:
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print(f"⚠️ TTS timeout with voice: {attempt_voice}")
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last_error = "Timeout"
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except Exception as e:
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print(f"⚠️ TTS failed with voice {attempt_voice}: {e}")
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last_error = e
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# If all voices failed, raise the last error
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raise Exception(f"All TTS voices failed. Last error: {last_error}")
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def generate_simple_srt(text: str, srt_path: Path):
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"""Generate a simple SRT subtitle file that displays the full text."""
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# Split text into chunks for better display
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words = text.split()
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chunks = []
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current_chunk = []
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for word in words:
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current_chunk.append(word)
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if len(current_chunk) >= 5 or word.endswith((".", "!", "?", ":")):
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chunks.append(" ".join(current_chunk))
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current_chunk = []
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if current_chunk:
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chunks.append(" ".join(current_chunk))
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# Each chunk gets time proportional to its word count
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srt_content = ""
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current_time = 0.0
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for i, chunk in enumerate(chunks):
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word_count = len(chunk.split())
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duration = word_count * 0.4 # 0.4 seconds per word
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start_time = format_srt_time(current_time)
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end_time = format_srt_time(current_time + duration)
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srt_content += f"{i + 1}\n"
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srt_content += f"{start_time} --> {end_time}\n"
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srt_content += f"{chunk}\n\n"
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current_time += duration
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print(f"📄 Generated SRT content:\n{srt_content}")
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with open(srt_path, "w", encoding="utf-8") as f:
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f.write(srt_content)
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def format_srt_time(seconds: float) -> str:
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"""Format seconds as SRT timestamp (HH:MM:SS,mmm)."""
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hours = int(seconds // 3600)
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minutes = int((seconds % 3600) // 60)
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secs = int(seconds % 60)
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millis = int((seconds % 1) * 1000)
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return f"{hours:02d}:{minutes:02d}:{secs:02d},{millis:03d}"
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def format_vtt_time(seconds: float) -> str:
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"""Format seconds as VTT timestamp (HH:MM:SS.mmm)."""
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hours = int(seconds // 3600)
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minutes = int((seconds % 3600) // 60)
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secs = int(seconds % 60)
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millis = int((seconds % 1) * 1000)
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return f"{hours:02d}:{minutes:02d}:{secs:02d}.{millis:03d}"
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class ReelResponse(BaseModel):
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success: bool
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output_base64: Optional[str] = None
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duration: Optional[float] = None
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detail: Optional[str] = None
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processing_stats: Optional[dict] = None
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@app.get("/health")
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def health_check(x_api_key: str = Header(None)):
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if x_api_key != API_KEY:
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raise HTTPException(status_code=401, detail="Invalid API Key")
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return {"status": "healthy"}
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@app.post("/process-reel")
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async def process_reel(request: ReelRequest, x_api_key: str = Header(None)):
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if x_api_key != API_KEY:
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raise HTTPException(status_code=401, detail="Invalid API Key")
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start_total = time.time()
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stats = {
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"download_duration": 0,
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"tts_duration": 0,
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"stabilize_duration": 0,
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"encoding_duration": 0,
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"total_duration": 0,
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}
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try:
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job_id = str(uuid.uuid4())
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job_dir = TEMP_DIR / job_id
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job_dir.mkdir()
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input_video_path = job_dir / "input.mp4"
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input_audio_path = job_dir / "music.mp3"
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tts_audio_path = job_dir / "tts.mp3"
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tts_srt_path = job_dir / "tts.srt"
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output_video_path = job_dir / "output.mp4"
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start_step = time.time()
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# 1. Save Input Video
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if request.video_base64:
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with open(input_video_path, "wb") as f:
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f.write(base64.b64decode(request.video_base64))
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elif request.video_url:
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response = requests.get(request.video_url, stream=True)
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response.raise_for_status()
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with open(input_video_path, "wb") as f:
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shutil.copyfileobj(response.raw, f)
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else:
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raise HTTPException(status_code=400, detail="No video source provided")
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# 2. Download Music (if present)
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has_music = False
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if request.music_url:
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try:
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# Add User-Agent to avoid 403 on some CDNs
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headers = {"User-Agent": "Mozilla/5.0"}
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response = requests.get(request.music_url, headers=headers, stream=True)
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response.raise_for_status()
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with open(input_audio_path, "wb") as f:
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shutil.copyfileobj(response.raw, f)
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has_music = True
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except Exception as e:
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print(f"Failed to download music: {e}")
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# We continue without music if it fails
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stats["download_duration"] = time.time() - start_step
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start_step = time.time()
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# 3. Generate TTS (if enabled)
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has_tts = False
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tts_clean_text = ""
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if request.tts_enabled and request.text:
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try:
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# Clean text for TTS (remove hashtags/emojis)
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tts_clean_text = clean_text_for_tts(request.text)
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print(f"🔊 TTS enabled. Original: '{request.text}'")
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print(f"🔊 TTS cleaned: '{tts_clean_text}'")
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# Check for male/female voice map
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voice = request.tts_voice
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if voice == "male":
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voice = "fr-FR-RemyMultilingualNeural"
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elif voice == "female":
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voice = "fr-FR-VivienneMultilingualNeural"
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elif not voice or "Neural" not in voice:
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# Default if invalid
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voice = "fr-FR-VivienneMultilingualNeural"
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print(f"🔊 Using voice: {voice}")
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if tts_clean_text:
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print(f"🔊 Generating TTS audio to: {tts_audio_path}")
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await generate_tts_with_subs(
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tts_clean_text, voice, tts_audio_path, tts_srt_path
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)
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# Verify files were created
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if tts_audio_path.exists() and tts_audio_path.stat().st_size > 0:
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print(
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f"✅ TTS audio generated: {tts_audio_path.stat().st_size} bytes"
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)
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has_tts = True
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# Generate SRT
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generate_simple_srt(tts_clean_text, tts_srt_path)
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else:
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print(f"❌ TTS audio file missing or empty!")
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else:
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print("⚠️ TTS text is empty after cleaning, skipping.")
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except Exception as e:
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import traceback
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print(f"❌ Failed to generate TTS: {e}")
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traceback.print_exc()
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stats["tts_duration"] = time.time() - start_step
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start_step = time.time()
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# 3.5 Stabilize video if requested (vidstab two-pass)
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if request.stabilize:
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print("📐 Starting video stabilization (vidstab)...")
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transforms_path = job_dir / "transforms.trf"
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stabilized_path = job_dir / "stabilized.mp4"
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try:
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# Pass 1: Detect motion/shakiness
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print("📐 Pass 1: Detecting motion...")
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detect_cmd = [
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"ffmpeg",
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"-y",
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"-i",
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str(input_video_path),
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"-vf",
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f"vidstabdetect=stepsize=6:shakiness=8:accuracy=9:result={transforms_path}",
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"-f",
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"null",
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"-",
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]
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detect_proc = subprocess.run(
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detect_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE
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)
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if detect_proc.returncode != 0:
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print(
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f"⚠️ Stabilization pass 1 failed: {detect_proc.stderr.decode()[:500]}"
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)
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elif transforms_path.exists():
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# Pass 2: Apply stabilization transform
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print("📐 Pass 2: Applying stabilization...")
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transform_cmd = [
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"ffmpeg",
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"-y",
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"-i",
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str(input_video_path),
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"-vf",
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f"vidstabtransform=input={transforms_path}:smoothing=10:crop=black:zoom=1,unsharp=5:5:0.8:3:3:0.4",
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"-c:v",
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"libx264",
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"-preset",
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"medium",
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"-crf",
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"18",
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"-c:a",
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"copy",
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str(stabilized_path),
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]
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transform_proc = subprocess.run(
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transform_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE
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)
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if transform_proc.returncode == 0 and stabilized_path.exists():
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# Use stabilized video for further processing
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input_video_path = stabilized_path
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print("✅ Video stabilization complete!")
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else:
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print(
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f"⚠️ Stabilization pass 2 failed: {transform_proc.stderr.decode()[:500]}"
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)
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else:
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print("⚠️ Transforms file not created, skipping stabilization")
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except Exception as e:
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print(f"⚠️ Stabilization error (continuing without): {e}")
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stats["stabilize_duration"] = time.time() - start_step
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start_step = time.time()
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# 4. Build FFmpeg Command
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cmd = ["ffmpeg", "-y", "-i", str(input_video_path)]
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video_filters = []
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audio_filters = []
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# 4. Build FFmpeg Command with Unified filter_complex
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cmd = ["ffmpeg", "-y", "-i", str(input_video_path)]
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# --- Audio Checks ---
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has_original_audio = False
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try:
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probe_cmd = [
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"ffprobe", "-v", "error", "-select_streams", "a:0",
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"-show_entries", "stream=codec_type", "-of", "csv=p=0",
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str(input_video_path),
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]
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probe_out = subprocess.check_output(probe_cmd).decode().strip()
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if probe_out == "audio":
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has_original_audio = True
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except Exception:
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pass
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# --- Inputs ---
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# 0: Video (already added)
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# 1: Music (optional)
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# 2: TTS (optional)
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input_count = 1
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music_idx = -1
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tts_idx = -1
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if has_music:
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cmd.extend(["-i", str(input_audio_path)])
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music_idx = input_count
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input_count += 1
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if has_tts:
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cmd.extend(["-i", str(tts_audio_path)])
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tts_idx = input_count
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input_count += 1
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# --- Filter Complex Construction ---
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fc_parts = []
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# A. Video Chain
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# 1. Scale & Pad & Unsharp
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# [0:v] -> [v_processed]
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video_filters_str = "scale=1080:1920:force_original_aspect_ratio=decrease,pad=1080:1920:(ow-iw)/2:(oh-ih)/2,unsharp=5:5:0.8:3:3:0.4"
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# 2. Text Overlay
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if request.text and request.draw_text:
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text_filter = ""
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if has_tts:
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# Subtitles (TikTok style) using SRT
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# Force style to look like TikTok/Reels text
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# We use DejaVu Sans exactly as listed in fc-list
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style = f"FontName=DejaVu Sans,FontSize={request.font_size},PrimaryColour=&H00FFFFFF,OutlineColour=&H00000000,BorderStyle=1,Outline=3,Shadow=0,Bold=1,Alignment=2,MarginV=300"
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srt_path_str = str(tts_srt_path).replace("\\", "/").replace(":", "\\:")
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text_filter = f"subtitles='{srt_path_str}':force_style='{style}'"
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else:
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# Standard Drawtext
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# Ensure font path is valid (using FONT_PATH detected earlier)
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sanitized_text = request.text.replace("'", "").replace(":", "\\:")
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text_filter = f"drawtext=fontfile='{FONT_PATH}':text='{sanitized_text}':fontcolor=white:fontsize={request.font_size}:borderw=3:bordercolor=black:x=(w-text_w)/2:y=h-text_h-300"
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# Combine formatting + text
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video_filters_str += f",{text_filter}"
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# Define Video Chain
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fc_parts.append(f"[0:v]{video_filters_str}[vout]")
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# B. Audio Chain
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audio_mapped = False
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inputs_for_mix = 0
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audio_mix_str = ""
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# Strategy:
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# If no music and no TTS -> Copy original audio (if exists) or silent
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# If music or TTS -> Mix everything
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if has_music or has_tts:
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# Prepare inputs
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if has_original_audio:
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audio_mix_str += "[0:a]"
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inputs_for_mix += 1
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if has_music:
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# Adjust volume
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fc_parts.append(f"[{music_idx}:a]volume={request.music_volume}[a_music]")
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audio_mix_str += "[a_music]"
|
|
inputs_for_mix += 1
|
|
|
|
if has_tts:
|
|
# TTS louder
|
|
fc_parts.append(f"[{tts_idx}:a]volume=1.5[a_tts]")
|
|
audio_mix_str += "[a_tts]"
|
|
inputs_for_mix += 1
|
|
|
|
# Mix
|
|
if inputs_for_mix > 0:
|
|
fc_parts.append(f"{audio_mix_str}amix=inputs={inputs_for_mix}:duration=first:dropout_transition=2:normalize=0[aout]")
|
|
audio_mapped = True
|
|
else:
|
|
# No external audio added
|
|
if has_original_audio:
|
|
# Just pass through original audio
|
|
# We can map 0:a directly, no filter needed for audio
|
|
audio_mapped = False
|
|
else:
|
|
# No audio at all
|
|
audio_mapped = False
|
|
|
|
# Apply Filter Complex
|
|
cmd.extend(["-filter_complex", ";".join(fc_parts)])
|
|
|
|
# Maps
|
|
cmd.extend(["-map", "[vout]"]) # Map processed video
|
|
|
|
if audio_mapped:
|
|
cmd.extend(["-map", "[aout]"]) # Map mixed audio
|
|
elif has_original_audio:
|
|
cmd.extend(["-map", "0:a"]) # Map original audio directly
|
|
|
|
cmd.extend(["-shortest"])
|
|
|
|
# Quality settings
|
|
cmd.extend(
|
|
[
|
|
"-c:v",
|
|
"libx264",
|
|
"-preset",
|
|
"slow",
|
|
"-crf",
|
|
"17",
|
|
"-c:a",
|
|
"aac",
|
|
"-b:a",
|
|
"192k",
|
|
"-pix_fmt",
|
|
"yuv420p",
|
|
"-movflags",
|
|
"+faststart",
|
|
]
|
|
)
|
|
|
|
cmd.append(str(output_video_path))
|
|
print(f"🚀 Executing FFmpeg command: {' '.join(cmd)}")
|
|
|
|
# execute
|
|
process = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
|
|
# Log detailed output on failure OR success for debugging font issues
|
|
if process.returncode != 0:
|
|
print(f"❌ FFmpeg failed. Stderr:\n{process.stderr.decode()}")
|
|
else:
|
|
# Check stderr for font warnings even on success
|
|
stderr_last_lines = '\n'.join(process.stderr.decode().splitlines()[-20:])
|
|
print(f"✅ FFmpeg executed. Stderr (last 20 lines):\n{stderr_last_lines}")
|
|
|
|
stats["encoding_duration"] = time.time() - start_step
|
|
stats["total_duration"] = time.time() - start_total
|
|
|
|
if process.returncode != 0:
|
|
raise Exception(f"FFmpeg encoding failed: {process.stderr.decode()}")
|
|
|
|
# 4. Get Duration (ffprobe)
|
|
duration_cmd = [
|
|
"ffprobe",
|
|
"-v",
|
|
"error",
|
|
"-show_entries",
|
|
"format=duration",
|
|
"-of",
|
|
"default=noprint_wrappers=1:nokey=1",
|
|
str(output_video_path),
|
|
]
|
|
dur_proc = subprocess.run(duration_cmd, stdout=subprocess.PIPE)
|
|
duration = float(dur_proc.stdout.decode().strip() or 0)
|
|
|
|
# 5. Read Output
|
|
with open(output_video_path, "rb") as f:
|
|
out_bytes = f.read()
|
|
out_b64 = base64.b64encode(out_bytes).decode("utf-8")
|
|
|
|
# Cleanup
|
|
shutil.rmtree(job_dir)
|
|
|
|
print(f"📊 Processing Stats: {stats}")
|
|
|
|
return {
|
|
"success": True,
|
|
"output_base64": out_b64,
|
|
"duration": duration,
|
|
"processing_stats": stats,
|
|
}
|
|
|
|
except Exception as e:
|
|
if "job_dir" in locals():
|
|
shutil.rmtree(job_dir, ignore_errors=True)
|
|
return {"success": False, "detail": str(e)}
|
|
|
|
|
|
@app.post("/preview-tts")
|
|
async def preview_tts(request: ReelRequest, x_api_key: str = Header(None)):
|
|
if x_api_key != API_KEY:
|
|
raise HTTPException(status_code=401, detail="Invalid API Key")
|
|
|
|
try:
|
|
job_id = str(uuid.uuid4())
|
|
job_dir = TEMP_DIR / job_id
|
|
job_dir.mkdir()
|
|
|
|
tts_audio_path = job_dir / "preview.mp3"
|
|
tts_srt_path = job_dir / "preview.srt" # Consistent with rest of app
|
|
|
|
if not request.text:
|
|
raise HTTPException(status_code=400, detail="Text required for preview")
|
|
|
|
clean_text = clean_text_for_tts(request.text)
|
|
|
|
# Determine voice (reuse logic)
|
|
voice = request.tts_voice
|
|
if voice == "male":
|
|
voice = "fr-FR-RemyMultilingualNeural"
|
|
elif voice == "female":
|
|
voice = "fr-FR-VivienneMultilingualNeural"
|
|
elif not voice or "Neural" not in voice:
|
|
voice = "fr-FR-VivienneMultilingualNeural"
|
|
|
|
await generate_tts_with_subs(clean_text, voice, tts_audio_path, tts_srt_path)
|
|
|
|
if not tts_audio_path.exists():
|
|
raise Exception("TTS generation failed (file missing)")
|
|
|
|
with open(tts_audio_path, "rb") as f:
|
|
audio_bytes = f.read()
|
|
audio_b64 = base64.b64encode(audio_bytes).decode("utf-8")
|
|
|
|
shutil.rmtree(job_dir)
|
|
return {"success": True, "audio_base64": audio_b64}
|
|
|
|
except Exception as e:
|
|
if "job_dir" in locals():
|
|
shutil.rmtree(job_dir, ignore_errors=True)
|
|
return {"success": False, "detail": str(e)}
|
|
|
|
|
|
if __name__ == "__main__":
|
|
uvicorn.run(app, host="0.0.0.0", port=8000)
|