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app.py
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app.py
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import os
import uuid
import threading
import time
from flask import Flask, request, jsonify, send_file
from werkzeug.exceptions import BadRequest
from functools import wraps
import ffmpeg
import whisper
import srt
from datetime import datetime, timedelta
import base64
import json
from google.oauth2 import service_account
from googleapiclient.discovery import build
from googleapiclient.http import MediaFileUpload
app = Flask(__name__)
API_KEY = os.environ.get('API_KEY')
if not API_KEY:
raise ValueError("API_KEY environment variable is not set")
STORAGE_PATH = os.environ.get('STORAGE_PATH', '/tmp/')
os.makedirs(STORAGE_PATH, exist_ok=True)
def authenticate(func):
@wraps(func)
def wrapper(*args, **kwargs):
api_key = request.headers.get('X-API-Key')
if api_key != API_KEY:
return jsonify({"error": "Unauthorized"}), 401
return func(*args, **kwargs)
return wrapper
def delete_old_files():
while True:
now = time.time()
for filename in os.listdir(STORAGE_PATH):
file_path = os.path.join(STORAGE_PATH, filename)
if os.path.isfile(file_path):
if os.stat(file_path).st_mtime < now - 3600:
os.remove(file_path)
time.sleep(3600) # Run every hour
threading.Thread(target=delete_old_files, daemon=True).start()
def download_file(url, local_filename):
import requests
with requests.get(url, stream=True) as r:
r.raise_for_status()
with open(local_filename, 'wb') as f:
for chunk in r.iter_content(chunk_size=8192):
f.write(chunk)
return local_filename
def send_webhook(webhook_url, data):
import requests
try:
response = requests.post(webhook_url, json=data)
response.raise_for_status()
except requests.RequestException as e:
print(f"Webhook failed: {e}")
@app.route('/authenticate', methods=['POST'])
def authenticate_endpoint():
api_key = request.headers.get('X-API-Key')
if api_key == API_KEY:
return jsonify([{"message": "Authorized"}]), 200
else:
return jsonify([{"message": "Unauthorized"}]), 401
@app.route('/convert-media-to-mp3', methods=['POST'])
@authenticate
def convert_media_to_mp3():
data = request.json
media_url = data.get('media_url')
webhook_url = data.get('webhook_url')
if not media_url:
raise BadRequest("Missing media_url parameter")
job_id = str(uuid.uuid4())
output_filename = f"{job_id}.mp3"
if webhook_url:
threading.Thread(target=process_conversion, args=(media_url, output_filename, webhook_url, job_id)).start()
return jsonify({"job_id": job_id, "filename": output_filename}), 202
else:
try:
process_conversion(media_url, output_filename, webhook_url, job_id)
return jsonify({"job_id": job_id, "filename": output_filename}), 200
except Exception as e:
return jsonify({"message": str(e)}), 500
def process_conversion(media_url, output_filename, webhook_url, job_id):
try:
input_filename = download_file(media_url, os.path.join(STORAGE_PATH, f"{job_id}_input"))
(
ffmpeg
.input(input_filename)
.output(os.path.join(STORAGE_PATH, output_filename), acodec='libmp3lame', audio_bitrate='64k')
.overwrite_output()
.run(capture_stdout=True, capture_stderr=True)
)
os.remove(input_filename)
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/convert-media-to-mp3",
"job_id": job_id,
"response": output_filename,
"code": 200,
"message": "success"
})
return output_filename
except Exception as e:
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/convert-media-to-mp3",
"job_id": job_id,
"response": None,
"code": 500,
"message": str(e)
})
raise
@app.route('/transcribe-media', methods=['POST'])
@authenticate
def transcribe_media():
data = request.json
media_url = data.get('media_url')
output_type = data.get('output')
webhook_url = data.get('webhook_url')
if not media_url:
raise BadRequest("Missing media_url parameter")
if not output_type:
raise BadRequest("Missing output parameter")
if output_type not in ['transcript', 'srt']:
raise BadRequest("Invalid output type. Must be 'transcript' or 'srt'")
job_id = str(uuid.uuid4())
if webhook_url:
threading.Thread(target=process_transcription, args=(media_url, output_type, webhook_url, job_id)).start()
return jsonify({"job_id": job_id}), 200
try:
result = process_transcription(media_url, output_type, webhook_url, job_id)
return jsonify({"response": result}), 200
except Exception as e:
return jsonify({"message": str(e)}), 500
def process_transcription(media_url, output_type, webhook_url, job_id):
try:
input_filename = download_file(media_url, os.path.join(STORAGE_PATH, f"{job_id}_input"))
model = whisper.load_model("base")
result = model.transcribe(input_filename)
os.remove(input_filename)
if output_type == 'transcript':
output = result['text']
else: # srt
srt_subtitles = []
for i, segment in enumerate(result['segments'], start=1):
start = timedelta(seconds=segment['start'])
end = timedelta(seconds=segment['end'])
text = segment['text'].strip()
srt_subtitles.append(srt.Subtitle(i, start, end, text))
output = srt.compose(srt_subtitles)
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/transcribe-media",
"job_id": job_id,
"response": output,
"code": 200,
"message": "success"
})
return output
except Exception as e:
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/transcribe-media",
"job_id": job_id,
"code": 500,
"message": str(e)
})
raise
@app.route('/combine-videos', methods=['POST'])
@authenticate
def combine_videos():
data = request.json
media_urls = data.get('media_urls')
webhook_url = data.get('webhook_url')
if not media_urls or not isinstance(media_urls, list):
raise BadRequest("Missing or invalid media_urls parameter")
job_id = str(uuid.uuid4())
output_filename = f"{job_id}_combined.mp4"
if webhook_url:
threading.Thread(target=process_video_combination, args=(media_urls, output_filename, webhook_url, job_id)).start()
return jsonify({"job_id": job_id, "filename": output_filename}), 202
else:
try:
process_video_combination(media_urls, output_filename, webhook_url, job_id)
return jsonify({"job_id": job_id, "filename": output_filename}), 200
except Exception as e:
return jsonify({"message": str(e)}), 500
def process_video_combination(media_urls, output_filename, webhook_url, job_id):
try:
input_files = []
for i, url in enumerate(media_urls):
input_filename = download_file(url, os.path.join(STORAGE_PATH, f"{job_id}_input_{i}"))
input_files.append(input_filename)
# Create a list of input files for ffmpeg
inputs = [ffmpeg.input(f) for f in input_files]
# Concatenate the input videos
concat = ffmpeg.concat(*inputs)
# Output the result, re-encoding the video
output = ffmpeg.output(concat, os.path.join(STORAGE_PATH, output_filename),
vcodec='libx264', # Use H.264 codec
acodec='aac', # Use AAC for audio
video_bitrate='3000k', # Adjust as needed
audio_bitrate='192k') # Adjust as needed
# Run the ffmpeg command
ffmpeg.run(output, overwrite_output=True)
# Clean up input files
for f in input_files:
os.remove(f)
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/combine-videos",
"job_id": job_id,
"response": output_filename,
"code": 200,
"message": "success"
})
return output_filename
except Exception as e:
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/combine-videos",
"job_id": job_id,
"response": None,
"code": 500,
"message": str(e)
})
raise
@app.route('/audio-mixing', methods=['POST'])
@authenticate
def audio_mixing():
data = request.json
video_url = data.get('video_url')
audio_url = data.get('audio_url')
video_vol = data.get('video_vol', 100)
audio_vol = data.get('audio_vol', 100)
output_length = data.get('output_length', 'video')
webhook_url = data.get('webhook_url')
# Input validation
if not video_url or not audio_url:
raise BadRequest("Missing video_url or audio_url parameter")
if not 0 <= video_vol <= 100 or not 0 <= audio_vol <= 100:
raise BadRequest("video_vol and audio_vol must be between 0 and 100")
if output_length not in ['video', 'audio']:
raise BadRequest("output_length must be either 'video' or 'audio'")
job_id = str(uuid.uuid4())
output_filename = f"{job_id}_mixed.mp4"
if webhook_url:
threading.Thread(target=process_audio_mixing, args=(video_url, audio_url, video_vol, audio_vol, output_length, output_filename, webhook_url, job_id)).start()
return jsonify({"job_id": job_id, "filename": output_filename}), 202
else:
try:
process_audio_mixing(video_url, audio_url, video_vol, audio_vol, output_length, output_filename, webhook_url, job_id)
return jsonify({"job_id": job_id, "filename": output_filename}), 200
except Exception as e:
return jsonify({"message": str(e)}), 500
def process_audio_mixing(video_url, audio_url, video_vol, audio_vol, output_length, output_filename, webhook_url, job_id):
try:
video_input = os.path.join(STORAGE_PATH, f"{job_id}_video_input")
audio_input = os.path.join(STORAGE_PATH, f"{job_id}_audio_input")
# Download files
download_file(video_url, video_input)
download_file(audio_url, audio_input)
# Prepare FFmpeg inputs
video = ffmpeg.input(video_input)
audio = ffmpeg.input(audio_input)
# Apply volume filters
video_audio = video.audio.filter('volume', volume=f"{video_vol/100}")
input_audio = audio.filter('volume', volume=f"{audio_vol/100}")
# Get video and audio durations
video_info = ffmpeg.probe(video_input)
audio_info = ffmpeg.probe(audio_input)
video_duration = float(video_info['streams'][0]['duration'])
audio_duration = float(audio_info['streams'][0]['duration'])
# Determine output duration
if output_length == 'video':
output_duration = video_duration
else:
output_duration = audio_duration
# Trim or pad audio
if output_duration > audio_duration:
input_audio = ffmpeg.filter([input_audio], 'apad', pad_dur=output_duration-audio_duration)
else:
input_audio = input_audio.filter('atrim', duration=output_duration)
# Mix audio
mixed_audio = ffmpeg.filter([video_audio, input_audio], 'amix', inputs=2)
# Trim or pad video
if output_duration > video_duration:
video = ffmpeg.filter([video], 'tpad', stop_duration=output_duration-video_duration)
else:
video = video.trim(duration=output_duration)
# Combine video and mixed audio
output = ffmpeg.output(video, mixed_audio, os.path.join(STORAGE_PATH, output_filename),
vcodec='libx264', acodec='aac', strict='experimental')
# Run FFmpeg command
ffmpeg.run(output, overwrite_output=True)
# Clean up input files
os.remove(video_input)
os.remove(audio_input)
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/audio-mixing",
"job_id": job_id,
"response": output_filename,
"code": 200,
"message": "success"
})
return output_filename
except Exception as e:
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/audio-mixing",
"job_id": job_id,
"response": None,
"code": 500,
"message": str(e)
})
raise
@app.route('/get-file', methods=['POST'])
@authenticate
def get_file():
data = request.json
filename = data.get('filename')
if not filename:
raise BadRequest("Missing filename parameter")
file_path = os.path.join(STORAGE_PATH, filename)
if not os.path.exists(file_path):
return jsonify({"message": "File not found"}), 404
return send_file(file_path, as_attachment=True)
# Add these to the existing imports at the top of the file
# Add these new environment variables
GCP_SA_CREDENTIALS = os.environ.get('GCP_SA_CREDENTIALS', '')
GDRIVE_USER = os.environ.get('GDRIVE_USER', '')
#if not GCP_SA_CREDENTIALS or not GDRIVE_USER:
# raise ValueError("GCP_SA_CREDENTIALS and GDRIVE_USER environment variables must be set")
# Add this function to set up the Google Drive service
def get_gdrive_service():
credentials_json = json.loads(base64.b64decode(GCP_SA_CREDENTIALS))
credentials = service_account.Credentials.from_service_account_info(
credentials_json,
scopes=['https://www.googleapis.com/auth/drive']
)
delegated_credentials = credentials.with_subject(GDRIVE_USER)
return build('drive', 'v3', credentials=delegated_credentials)
# Add this new endpoint
@app.route('/gdrive-upload', methods=['POST'])
@authenticate
def gdrive_upload():
data = request.json
file_url = data.get('file_url')
filename = data.get('filename')
folder_id = data.get('folder_id')
webhook_url = data.get('webhook_url')
if not file_url or not filename or not folder_id:
raise BadRequest("Missing file_url, filename, or folder_id parameter")
job_id = str(uuid.uuid4())
unique_filename = f"{job_id}_{filename}"
if webhook_url:
threading.Thread(target=process_gdrive_upload, args=(file_url, unique_filename, filename, folder_id, webhook_url, job_id)).start()
return jsonify({"job_id": job_id, "filename": filename}), 202
else:
try:
file_id = process_gdrive_upload(file_url, unique_filename, filename, folder_id, webhook_url, job_id)
return jsonify({"job_id": job_id, "filename": unique_filename, "file_id": file_id}), 200
except Exception as e:
return jsonify({"message": str(e)}), 500
def process_gdrive_upload(file_url, unique_filename, filename, folder_id, webhook_url, job_id):
try:
local_file_path = download_file(file_url, os.path.join(STORAGE_PATH, unique_filename))
drive_service = get_gdrive_service()
file_metadata = {
'name': filename,
'parents': [folder_id]
}
media = MediaFileUpload(local_file_path, resumable=True)
file = drive_service.files().create(body=file_metadata, media_body=media, fields='id').execute()
file_id = file.get('id')
os.remove(local_file_path)
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/gdrive-upload",
"job_id": job_id,
"response": file_id,
"code": 200,
"message": "success"
})
return file_id
except Exception as e:
if webhook_url:
send_webhook(webhook_url, {
"endpoint": "/gdrive-upload",
"job_id": job_id,
"response": None,
"code": 500,
"message": str(e)
})
raise
if __name__ == '__main__':
app.run(host='0.0.0.0', port=8080)