app.py

from flask import Flask, request, jsonify, send_from_directory
import torch
import shutil
import os
import sys
from src.utils.preprocess import CropAndExtract
from src.test_audio2coeff import Audio2Coeff
from src.facerender.animate import AnimateFromCoeff
from src.generate_batch import get_data
from src.generate_facerender_batch import get_facerender_data
import tempfile
from openai import OpenAI
from elevenlabs import set_api_key, generate, play, clone, Voice, VoiceSettings
from flask_cors import CORS, cross_origin
# from flask_swagger_ui import get_swaggerui_blueprint
import uuid
import time
from PIL import Image
import moviepy.editor as mp
import requests
import json
import pickle
import re
import aiohttp
import random
# from videoretalking import inference_function
# import base64
# import gfpgan_enhancer
# import threading
# import elevenlabs
# from argparse import Namespace
# from argparse import ArgumentParser
# from time import strftime
# from src.utils.init_path import init_path



class AnimationConfig:
    def __init__(self, driven_audio_path, source_image_path, result_folder,pose_style,expression_scale,enhancer,still,preprocess,ref_pose_video_path, image_hardcoded):
        self.driven_audio = driven_audio_path
        self.source_image = source_image_path
        self.ref_eyeblink = None
        self.ref_pose = ref_pose_video_path
        self.checkpoint_dir = './checkpoints'
        self.result_dir = result_folder
        self.pose_style = pose_style
        self.batch_size = 8
        self.expression_scale = expression_scale
        self.input_yaw = None
        self.input_pitch = None
        self.input_roll = None
        self.enhancer = enhancer
        self.background_enhancer = None
        self.cpu = False
        self.face3dvis = False
        self.still = still  
        self.preprocess = preprocess
        self.verbose = False
        self.old_version = False
        self.net_recon = 'resnet50'
        self.init_path = None
        self.use_last_fc = False
        self.bfm_folder = './checkpoints/BFM_Fitting/'
        self.bfm_model = 'BFM_model_front.mat'
        self.focal = 1015.
        self.center = 112.
        self.camera_d = 10.
        self.z_near = 5.
        self.z_far = 15.
        self.device = 'cuda'
        self.image_hardcoded = image_hardcoded


app = Flask(__name__)
CORS(app)

TEMP_DIR = None
start_time = None
VIDEO_DIRECTORY = None
args = None
unique_id = None

app.config['temp_response'] = None
app.config['generation_thread'] = None
app.config['text_prompt'] = None
app.config['final_video_path'] = None
app.config['final_video_duration'] = None

# Global paths
dir_path = os.path.dirname(os.path.realpath(__file__))
current_root_path = dir_path

path_of_lm_croper = os.path.join(current_root_path, 'checkpoints', 'shape_predictor_68_face_landmarks.dat')
path_of_net_recon_model = os.path.join(current_root_path, 'checkpoints', 'epoch_20.pth')
dir_of_BFM_fitting = os.path.join(current_root_path, 'checkpoints', 'BFM_Fitting')
wav2lip_checkpoint = os.path.join(current_root_path, 'checkpoints', 'wav2lip.pth')
audio2pose_checkpoint = os.path.join(current_root_path, 'checkpoints', 'auido2pose_00140-model.pth')
audio2pose_yaml_path = os.path.join(current_root_path, 'src', 'config', 'auido2pose.yaml')
audio2exp_checkpoint = os.path.join(current_root_path, 'checkpoints', 'auido2exp_00300-model.pth')
audio2exp_yaml_path = os.path.join(current_root_path, 'src', 'config', 'auido2exp.yaml')
free_view_checkpoint = os.path.join(current_root_path, 'checkpoints', 'facevid2vid_00189-model.pth.tar')

# Function for running the actual task (using preprocessed data)
def process_chunk(audio_chunk, args):
    print("Entered Process Chunk Function")
    global audio2pose_checkpoint, audio2pose_yaml_path, audio2exp_checkpoint, audio2exp_yaml_path, wav2lip_checkpoint, path_of_lm_croper, path_of_net_recon_model, dir_of_BFM_fitting
    global free_view_checkpoint
    if args.preprocess == 'full':
        mapping_checkpoint = os.path.join(current_root_path, 'checkpoints', 'mapping_00109-model.pth.tar')
        facerender_yaml_path = os.path.join(current_root_path, 'src', 'config', 'facerender_still.yaml')
    else:
        mapping_checkpoint = os.path.join(current_root_path, 'checkpoints', 'mapping_00229-model.pth.tar')
        facerender_yaml_path = os.path.join(current_root_path, 'src', 'config', 'facerender.yaml')

    # first_coeff_path = preprocessed_data["first_coeff_path"]
    # crop_pic_path = preprocessed_data["crop_pic_path"]
    # crop_info_path = "/home/user/app/preprocess_data/crop_info.json"
    # with open(crop_info_path , "rb") as f:
    #         crop_info = json.load(f)

    # print(f"Loaded existing preprocessed data")
    # print("first_coeff_path",first_coeff_path)
    # print("crop_pic_path",crop_pic_path)
    # print("crop_info",crop_info)


    preprocess_model = CropAndExtract(path_of_lm_croper, path_of_net_recon_model, dir_of_BFM_fitting, args.device)
    first_frame_dir = os.path.join(args.result_dir, 'first_frame_dir')
    os.makedirs(first_frame_dir, exist_ok=True)
    first_coeff_path, crop_pic_path, crop_info =  preprocess_model.generate(args.source_image, first_frame_dir, args.preprocess, source_image_flag=True)
    
    torch.cuda.empty_cache()
    batch = get_data(first_coeff_path, audio_chunk, args.device, ref_eyeblink_coeff_path=None, still=args.still)
    audio_to_coeff = Audio2Coeff(audio2pose_checkpoint, audio2pose_yaml_path, 
                                audio2exp_checkpoint, audio2exp_yaml_path, 
                                wav2lip_checkpoint, args.device)
    coeff_path = audio_to_coeff.generate(batch, args.result_dir, args.pose_style, ref_pose_coeff_path=None)
    
    # Further processing with animate_from_coeff using the coeff_path
    animate_from_coeff = AnimateFromCoeff(free_view_checkpoint, mapping_checkpoint, 
                                            facerender_yaml_path, args.device)

    torch.cuda.empty_cache()
    data = get_facerender_data(coeff_path, crop_pic_path, first_coeff_path, audio_chunk, 
                                args.batch_size, args.input_yaw, args.input_pitch, args.input_roll, 
                                expression_scale=args.expression_scale, still_mode=args.still, preprocess=args.preprocess)
    torch.cuda.empty_cache()
    print("Will Enter Animation")
    result, base64_video, temp_file_path, _ = animate_from_coeff.generate(data, args.result_dir, args.source_image, crop_info, 
                                    enhancer=args.enhancer, background_enhancer=args.background_enhancer, preprocess=args.preprocess)

    # video_clip = mp.VideoFileClip(temp_file_path)
    # duration = video_clip.duration
    
    app.config['temp_response'] = base64_video
    app.config['final_video_path'] = temp_file_path
    # app.config['final_video_duration'] = duration
    torch.cuda.empty_cache()
    return base64_video, temp_file_path


def create_temp_dir():
    return tempfile.TemporaryDirectory()

def save_uploaded_file(file, filename,TEMP_DIR):
    unique_filename = str(uuid.uuid4()) + "_" + filename
    file_path = os.path.join(TEMP_DIR.name, unique_filename)
    file.save(file_path)
    return file_path

client = OpenAI(api_key="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")

def openai_chat_avatar(text_prompt):
    response = client.chat.completions.create(
        model="gpt-4o-mini",
        messages=[
            {"role": "system", "content": "Summarize the following paragraph into a complete and accurate single sentence with no more than 30 words. The summary should capture the gist of the paragraph and make sense and remove the citation and document name from the end."},
            {"role": "user", "content": f"Please summarize the following paragraph into one sentence with 30 words or fewer, ensuring it makes sense and captures the gist and remove the citation from the end: {text_prompt}"},
        ],
        max_tokens = len(text_prompt),
    )
    return response

# def ryzedb_chat_avatar(question, app_id):
#     url = "https://inference.dev.ryzeai.ai/chat/stream"
#     # question = question + ". Summarize the answer in one line."
#     # print("question",question)
#     payload = json.dumps({
#     "input": {
#     "chat_history": [],
#     "app_id": app_id,
#     "question": question
#     },
#     "config": {"thread_id":"abc123"}
#     })
#     headers = {
#         'Content-Type': 'application/json'
#     }
    
#     try:
#         # Send the POST request
#         response = requests.request("POST", url, headers=headers, data=payload)
        
#         # Check for successful request
#         response.raise_for_status()
        
#         # Return the response JSON
#         return response.text
    
#     except requests.exceptions.RequestException as e:
#         print(f"An error occurred: {e}")
#         return None


# async def ryzedb_chat_avatar_async(question, app_id):
#     url = "https://inference.dev.ryzeai.ai/chat/stream"
#     payload = json.dumps({
#         "input": {
#             "chat_history": [],
#             "app_id": app_id,
#             "question": question
#         },
#         "config": {}
#     })
#     headers = {
#         'Content-Type': 'application/json'
#     }

#     try:
#         async with aiohttp.ClientSession() as session:
#             async with session.post(url, headers=headers, data=payload) as response:
#                 response.raise_for_status()  # Raise exception for bad status
#                 return await response.text()
#     except aiohttp.ClientError as e:
#         print(f"RyzeDB API error: {e}")
#         return None
#     except Exception as e:
#         print(f"Unexpected error: {e}")
#         return None


def ryzedb_chat_avatar(question, app_id):
    url = "https://inference.dev.ryzeai.ai/v2/chat/stream"
    print("ryze db question",question)
    # thread_id = str(random.randint(1000, 99999))
    # print("Generated thread_id:", thread_id)
    payload = {
    "input": {
        "app_id": app_id,
        "query": question,
        "chat_history": []
    },
    "config": {
        "thread_id": "123456"
    }}
    
    headers = {
        'Content-Type': 'application/json'
    }
    response = requests.post(url, json=payload, headers=headers, stream=True)
    try:
        raw_text = response.text.strip()
    
        if raw_text.startswith("data:"):
            raw_text = raw_text[len("data:"):].strip()
    
        json_data = json.loads(raw_text)
    
        response  = json_data.get("content", "")
        return response

    except Exception as e:
        print("Error parsing response:", e)
        return ""

    # content_buffer = []
    
    # for line in response.iter_lines():
    #     if line:
    #         try:
    #             decoded = line.decode("utf-8")
    #             if decoded.startswith("data:"):
    #                 data_str = decoded[5:].strip()
    #                 if data_str:
    #                     json_data = json.loads(data_str)
    #                     content = json_data.get("content")
    #                     if content:
    #                         content_buffer.append(content)
    #         except Exception as e:
    #             print("Error parsing line:", e)

    # return " ".join(content_buffer)


def custom_cleanup(temp_dir, exclude_dir):
    # Iterate over the files and directories in TEMP_DIR
    for filename in os.listdir(temp_dir):
        file_path = os.path.join(temp_dir, filename)
        # Skip the directory we want to exclude
        if file_path != exclude_dir:
            try:
                if os.path.isdir(file_path):
                    shutil.rmtree(file_path)
                else:
                    os.remove(file_path)
                print(f"Deleted: {file_path}")
            except Exception as e:
                print(f"Failed to delete {file_path}. Reason: {e}")


def generate_audio(voice_cloning, voice_gender, text_prompt):
    print("generate_audio")
    if voice_cloning == 'no':
        if voice_gender == 'male':
            voice = 'echo'
            print('Entering Audio creation using elevenlabs')
            set_api_key('sk_296eef2e3c7bfe1e45d44483e19acc675d091e9ae82489e8')

            audio = generate(text = text_prompt, voice = "Daniel", model = "eleven_monolingual_v1",stream=True, latency=4)
            with tempfile.NamedTemporaryFile(suffix=".mp3", prefix="text_to_speech_",dir=TEMP_DIR.name, delete=False) as temp_file:
                for chunk in audio:
                    temp_file.write(chunk)
                driven_audio_path = temp_file.name
                print('driven_audio_path',driven_audio_path)
                print('Audio file saved using elevenlabs')
                    
        else:
            voice = 'nova'

            print('Entering Audio creation using whisper')
            response = client.audio.speech.create(model="tts-1-hd",
                                            voice=voice,
                                            input = text_prompt)

            print('Audio created using whisper')
            with tempfile.NamedTemporaryFile(suffix=".wav", prefix="text_to_speech_",dir=TEMP_DIR.name, delete=False) as temp_file:
                driven_audio_path = temp_file.name
            
            response.write_to_file(driven_audio_path)
            print('Audio file saved using whisper')
    
    elif voice_cloning == 'yes':
        set_api_key('sk_296eef2e3c7bfe1e45d44483e19acc675d091e9ae82489e8')
        # voice = clone(name = "User Cloned Voice",
        #             files = [user_voice_path] )
        voice = Voice(voice_id="CEii8R8RxmB0zhAiloZg",name="Marc",settings=VoiceSettings(
                        stability=0.71, similarity_boost=0.5, style=0.0, use_speaker_boost=True),)

        audio = generate(text = text_prompt, voice = voice, model = "eleven_monolingual_v1",stream=True, latency=4)
        with tempfile.NamedTemporaryFile(suffix=".mp3", prefix="cloned_audio_",dir=TEMP_DIR.name, delete=False) as temp_file:
            for chunk in audio:
                temp_file.write(chunk)
            driven_audio_path = temp_file.name
            print('driven_audio_path',driven_audio_path)
            # audio_duration = get_audio_duration(driven_audio_path)
            # print('Total Audio Duration in seconds',audio_duration)

    return driven_audio_path

def run_preprocessing(args):
    global path_of_lm_croper, path_of_net_recon_model, dir_of_BFM_fitting
    first_frame_dir = os.path.join(args.result_dir, 'first_frame_dir')
    os.makedirs(first_frame_dir, exist_ok=True)
    fixed_temp_dir = "/home/user/app/preprocess_data/"
    os.makedirs(fixed_temp_dir, exist_ok=True)
    preprocessed_data_path = os.path.join(fixed_temp_dir, "preprocessed_data.pkl")

    if os.path.exists(preprocessed_data_path) and args.image_hardcoded == "yes":
        print("Loading preprocessed data...")
        with open(preprocessed_data_path, "rb") as f:
            preprocessed_data = pickle.load(f)
        print("Loaded existing preprocessed data from:", preprocessed_data_path)

    return preprocessed_data

# def remove_brackets(text):
#     # Use regex to remove content in brackets at the end of the text
#     cleaned_text = re.sub(r'\s*\[.*?\]\s*$', '', text)
#     return cleaned_text.strip()

# def extract_content(data):
#     pattern = r'"content":"((?:\\.|[^"\\])*)"'
#     match = re.search(pattern, data)
#     if match:
#         return match.group(1)
#     else:
#         return None

def extract_content(line):
    print("line :", line)
    if line.startswith("data:"):
        print("Entering extract content")
        json_part = line[len("data:"):].strip()
        if json_part:
            try:
                parsed = json.loads(json_part)
                return parsed.get("content")
            except json.JSONDecodeError:
                pass
    return None

@app.route("/run", methods=['POST'])
def generate_video():
    print("Entered endpoint")
    global start_time, VIDEO_DIRECTORY
    start_time = time.time()
    global TEMP_DIR
    TEMP_DIR = create_temp_dir()
    print('request:',request.method)
    try:
        if request.method == 'POST':
            print("Entered")
            # source_image = request.files['source_image']
            image_path = '/home/user/app/images/new.jpg'
            source_image = Image.open(image_path)
            text_prompt = request.form['text_prompt']
            
            print('Input text prompt: ',text_prompt)
            text_prompt = text_prompt.strip()
            if not text_prompt:
                return jsonify({'error': 'Input text prompt cannot be blank'}), 400
                
            voice_cloning = request.form.get('voice_cloning', 'no')
            image_hardcoded = request.form.get('image_hardcoded', 'yes')
            chat_model_used = request.form.get('chat_model_used', 'ryzedb')
            target_language = request.form.get('target_language', 'original_text')
            print('target_language',target_language)
            pose_style = int(request.form.get('pose_style', 1))
            expression_scale = float(request.form.get('expression_scale', 1))
            enhancer = request.form.get('enhancer', None)
            voice_gender = request.form.get('voice_gender', 'male')
            still_str = request.form.get('still', 'False')
            still = still_str.lower() == 'false'
            print('still', still)
            preprocess = request.form.get('preprocess', 'crop')
            print('preprocess selected: ',preprocess)
            ref_pose_video = request.files.get('ref_pose', None)
            app_id = request.form['app_id']
            if not app_id:
                return jsonify({'error': 'App ID cannot be blank'}), 400


            if chat_model_used == 'ryzedb':
                start_time_ryze = time.time()
                text_prompt = ryzedb_chat_avatar(text_prompt, app_id)
                print("Response from inference",text_prompt)
                # text_prompt = extract_content(response)
                # text_prompt = text_prompt.replace('\n', ' ').replace('\\n', ' ').strip()
                if "No information available" in text_prompt:
                    text_prompt = re.sub(r'\\+', '', text_prompt)

                response = openai_chat_avatar(text_prompt)
                text_prompt = response.choices[0].message.content.strip()
                app.config['text_prompt'] = text_prompt
                print('Final output text prompt using ryzedb: ',text_prompt)
                # events  = response.split('\r\n\r\n')
                # content = None
                # for event in events:
                # # Split each event block by "\r\n" to get the lines
                #     lines = event.split('\r\n')
                #     if len(lines) > 1 and lines[0] == 'event: data':
                #         # Extract the JSON part from the second line and parse it
                #         json_data = lines[1].replace('data: ', '')
                #         try:
                #             data = json.loads(json_data)
                #             text_prompt = data.get('content')
                #             app.config['text_prompt'] = text_prompt
                #             end_time_ryze = time.time()
                #             diff = end_time_ryze - start_time_ryze
                #             print('Final output text prompt using ryzedb: ',text_prompt)
                #             print('Time to get response from ryzedb: ',diff)
                #             break  # Exit the loop once content is found
                #         except json.JSONDecodeError:
                #             continue

            elif chat_model_used == 'self':
                text_prompt = text_prompt.strip()
                
            else:
                print("No Ryze database found")
            
            source_image_path = save_uploaded_file(source_image, 'source_image.png',TEMP_DIR)
            print(source_image_path)

            
            driven_audio_path = generate_audio(voice_cloning, voice_gender, text_prompt)
            
            save_dir = tempfile.mkdtemp(dir=TEMP_DIR.name)
            result_folder = os.path.join(save_dir, "results")
            os.makedirs(result_folder, exist_ok=True)
    
            ref_pose_video_path = None
            if ref_pose_video:
                with tempfile.NamedTemporaryFile(suffix=".mp4", prefix="ref_pose_",dir=TEMP_DIR.name, delete=False) as temp_file:
                    ref_pose_video_path = temp_file.name
                    ref_pose_video.save(ref_pose_video_path)
                    print('ref_pose_video_path',ref_pose_video_path)
                    
    except Exception as e:
        app.logger.error(f"An error occurred: {e}")
        return "An error occurred", 500
    
    args = AnimationConfig(driven_audio_path=driven_audio_path, source_image_path=source_image_path, result_folder=result_folder, pose_style=pose_style, expression_scale=expression_scale,enhancer=enhancer,still=still,preprocess=preprocess,ref_pose_video_path=ref_pose_video_path, image_hardcoded=image_hardcoded)
        
    if torch.cuda.is_available() and not args.cpu:
        args.device = "cuda"
    else:
        args.device = "cpu"
        
    # generation_thread = threading.Thread(target=main, args=(args,))
    # app.config['generation_thread'] = generation_thread
    # generation_thread.start()
    # response_data = {"message": "Video generation started",
    #                 "process_id": generation_thread.ident}

    try:
        # preprocessed_data = run_preprocessing(args)
        base64_video, temp_file_path = process_chunk(driven_audio_path, args)
        final_video_path = app.config['final_video_path']
        print('final_video_path',final_video_path)

        if temp_file_path and temp_file_path.endswith('.mp4'):
            filename = os.path.basename(temp_file_path)
            os.makedirs('videos', exist_ok=True)
            VIDEO_DIRECTORY = os.path.abspath('videos')
            print("VIDEO_DIRECTORY: ",VIDEO_DIRECTORY)
            destination_path = os.path.join(VIDEO_DIRECTORY, filename)
            shutil.copy(temp_file_path, destination_path)
            video_url = f"/videos/{filename}"

            if final_video_path and os.path.exists(final_video_path):
                os.remove(final_video_path)
                print("Deleted video file:", final_video_path)
    
            preprocess_dir = os.path.join("/tmp", "preprocess_data")
            custom_cleanup(TEMP_DIR.name, preprocess_dir)

            print("Temporary files cleaned up, but preprocess_data is retained.")
            end_time = time.time()
            time_taken = end_time - start_time
        
            print(f"Time taken for endpoint: {time_taken:.2f} seconds")
            
            return jsonify({
                    "message": "Video processed and saved successfully.",
                    "video_url": video_url,
                    "text_prompt": text_prompt,
                    "time_taken": time_taken,
                    "status": "success"
                })
        else:
            return jsonify({
                "message": "Failed to process the video.",
                "status": "error"
            }), 500
        
    except Exception as e:
        return jsonify({'status': 'error', 'message': str(e)}), 500
        

@app.route("/videos/<string:filename>", methods=['GET'])
def serve_video(filename):
    global VIDEO_DIRECTORY
    return send_from_directory(VIDEO_DIRECTORY, filename, as_attachment=False)



# @app.route("/status", methods=["GET"])
# def check_generation_status():
#     global TEMP_DIR
#     global start_time
#     response = {"base64_video": "","text_prompt":"", "status": ""}
#     process_id = request.args.get('process_id', None)

#     # process_id is required to check the status for that specific process
#     if process_id:
#         generation_thread = app.config.get('generation_thread')
#         if generation_thread and generation_thread.ident == int(process_id) and generation_thread.is_alive():
#             return jsonify({"status": "in_progress"}), 200
#         elif app.config.get('temp_response'):
#             # app.config['temp_response']['status'] = 'completed'
#             final_response = app.config['temp_response']
#             response["base64_video"] = final_response
#             response["text_prompt"] = app.config.get('text_prompt')
#             response["duration"] = app.config.get('final_video_duration')
#             response["status"] = "completed"

#             final_video_path = app.config['final_video_path']
#             print('final_video_path',final_video_path)


#             if final_video_path and os.path.exists(final_video_path):
#                 os.remove(final_video_path)
#                 print("Deleted video file:", final_video_path)

#             # TEMP_DIR.cleanup()
#             preprocess_dir = os.path.join("/tmp", "preprocess_data")
#             custom_cleanup(TEMP_DIR.name, preprocess_dir)

#             print("Temporary files cleaned up, but preprocess_data is retained.")
            
#             end_time = time.time()
#             total_time = round(end_time - start_time, 2)
#             print("Total time taken for execution:", total_time, " seconds")
#             response["time_taken"] = total_time
#             return jsonify(response)
#     return jsonify({"error":"No process id provided"})

@app.route("/health", methods=["GET"])
def health_status():
    response = {"online": "true"}
    return jsonify(response)
if __name__ == '__main__':
    app.run(debug=True)