Add start, stop, and restart helper scripts with baked-in venv checks

* Update 6_train_Quick96.sh

Fix "no training data provided"

* Update 6_train_SAEHD.sh

fix "no training data provided"

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "DeepFaceLab"]
+	path = DeepFaceLab
+	url = https://github.com/iperov/DeepFaceLab.git

README.md

@@ -17,12 +17,24 @@ Check latest cudnn and cudatoolkit version for your GPU device.
 ```bash
  conda create -n deepfacelab -c main python=3.7 cudnn=7.6.5 cudatoolkit=10.1.243
  conda activate deepfacelab
- git clone https://github.com/nagadit/DeepFaceLab_Linux.git
+ git clone --depth 1 https://github.com/nagadit/DeepFaceLab_Linux.git
  cd DeepFaceLab_Linux
- git clone https://github.com/iperov/DeepFaceLab.git
+ git clone --depth 1 https://github.com/iperov/DeepFaceLab.git
  python -m pip install -r ./DeepFaceLab/requirements-cuda.txt
 ```
 
+you can confirm your gpu is working correctly by running the following code and seeing what messages pop up:
+
+```bash
+python -c "import tensorflow as tf;print(tf.__version__)"
+```
+
+If the scripts can't seem to access the GPU and you're having issues with cuda version mismatches when running `nvidia-smi`, they can sometimes be remedied by simply running
+
+```bash
+conda install tensorflow-gpu==2.4.1
+```
+
 ## 4. Download Pretrain (optional)
 Use script 4.1 from the scripts directory.
  
@@ -35,3 +47,8 @@ Or download manually
 [Quick96](https://github.com/nagadit/DeepFaceLab_Linux/releases/download/1.0/pretrain_Quick96.zip)
 
 ## 5. Navigate to the scripts directory and begin using DeepFaceLab_Linux ᗡ:
+Run all scripts with BASH shell
+```bash
+bash 1_clear_workspace.sh
+```
+etc

manage_webui.py

@@ -0,0 +1,197 @@
+#!/usr/bin/env python3
+import os
+import sys
+import time
+import signal
+import socket
+import subprocess
+import shutil
+
+PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
+VENV_DIR = os.path.join(PROJECT_DIR, '.venv')
+PID_FILE = os.path.join(PROJECT_DIR, '.webui.pid')
+LOG_FILE = os.path.join(PROJECT_DIR, 'webui_server.log')
+SERVER_SCRIPT = os.path.join(PROJECT_DIR, 'web_ui_server.py')
+
+# Get correct python / pip paths in virtualenv
+if sys.platform == 'win32':
+    VENV_PYTHON = os.path.join(VENV_DIR, 'Scripts', 'python.exe')
+    VENV_PIP = os.path.join(VENV_DIR, 'Scripts', 'pip.exe')
+else:
+    VENV_PYTHON = os.path.join(VENV_DIR, 'bin', 'python')
+    VENV_PIP = os.path.join(VENV_DIR, 'bin', 'pip')
+
+def is_port_in_use(port=8082):
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        return s.connect_ex(('127.0.0.1', port)) == 0
+
+def check_process_running(pid):
+    try:
+        os.kill(pid, 0)
+        return True
+    except OSError:
+        return False
+
+def get_running_pid():
+    if os.path.exists(PID_FILE):
+        try:
+            with open(PID_FILE, 'r') as f:
+                pid = int(f.read().strip())
+            if check_process_running(pid):
+                return pid
+        except ValueError:
+            pass
+    return None
+
+def setup():
+    print("=== Setting up virtual environment ===")
+    if not os.path.exists(VENV_DIR):
+        print(f"Creating virtual environment in {VENV_DIR}...")
+        try:
+            subprocess.run([sys.executable, '-m', 'venv', VENV_DIR], check=True)
+            print("Virtual environment created successfully.")
+        except subprocess.CalledProcessError as e:
+            print(f"Error creating virtual environment: {e}", file=sys.stderr)
+            sys.exit(1)
+    else:
+        print("Virtual environment already exists.")
+
+    print("\n=== Installing dependencies ===")
+    try:
+        print("Upgrading pip...")
+        subprocess.run([VENV_PIP, 'install', '--upgrade', 'pip'], check=True)
+        print("Installing Flask...")
+        subprocess.run([VENV_PIP, 'install', 'Flask'], check=True)
+        print("All dependencies installed successfully.")
+    except subprocess.CalledProcessError as e:
+        print(f"Error installing dependencies: {e}", file=sys.stderr)
+        sys.exit(1)
+
+def start():
+    pid = get_running_pid()
+    if pid:
+        print(f"Web UI server is already running with PID {pid}.")
+        return
+
+    if is_port_in_use(8082):
+        print("Error: Port 8082 is already in use by another application.", file=sys.stderr)
+        sys.exit(1)
+
+    if not os.path.exists(VENV_PYTHON):
+        print("Error: Virtual environment not found. Please run 'setup' first.", file=sys.stderr)
+        sys.exit(1)
+
+    print("Starting Web UI server in the background...")
+    
+    # Open log file for appending
+    log_f = open(LOG_FILE, 'a')
+    log_f.write(f"\n--- Server started at {time.strftime('%Y-%m-%d %H:%M:%S')} ---\n")
+    log_f.flush()
+
+    try:
+        # Launch using start_new_session=True to detach from parent shell
+        proc = subprocess.Popen(
+            [VENV_PYTHON, SERVER_SCRIPT],
+            cwd=PROJECT_DIR,
+            stdout=log_f,
+            stderr=log_f,
+            start_new_session=True
+        )
+        
+        # Write PID file
+        with open(PID_FILE, 'w') as f:
+            f.write(str(proc.pid))
+            
+        time.sleep(1) # Wait a bit to verify it didn't crash immediately
+        if proc.poll() is None:
+            print(f"Web UI server successfully started (PID: {proc.pid}).")
+            print(f"Logs are being written to: {LOG_FILE}")
+            print("You can access the interface at: http://localhost:8082/")
+        else:
+            print("Error: Server failed to start. Check log file for details.", file=sys.stderr)
+            sys.exit(1)
+            
+    except Exception as e:
+        print(f"Error launching server: {e}", file=sys.stderr)
+        sys.exit(1)
+
+def stop():
+    pid = get_running_pid()
+    if not pid:
+        print("Web UI server is not running.")
+        # Clean up stale PID file if any
+        if os.path.exists(PID_FILE):
+            os.remove(PID_FILE)
+        return
+
+    print(f"Stopping Web UI server (PID: {pid})...")
+    try:
+        os.kill(pid, signal.SIGTERM)
+        # Wait up to 5 seconds for it to exit
+        for _ in range(10):
+            time.sleep(0.5)
+            if not check_process_running(pid):
+                break
+        else:
+            # Force kill if still running
+            print("Force stopping server...")
+            os.kill(pid, signal.SIGKILL)
+            
+        print("Server stopped.")
+    except ProcessLookupError:
+        print("Server was already stopped.")
+    
+    if os.path.exists(PID_FILE):
+        os.remove(PID_FILE)
+
+def status():
+    pid = get_running_pid()
+    if pid:
+        print(f"Status: RUNNING (PID: {pid})")
+        print("Access URLs:")
+        print("  - Local: http://localhost:8082/")
+        try:
+            hostname = socket.gethostname()
+            ip = socket.gethostbyname(hostname)
+            print(f"  - Network: http://{ip}:8082/")
+        except Exception:
+            pass
+    else:
+        print("Status: STOPPED")
+        
+    if os.path.exists(LOG_FILE):
+        print("\nLast 10 log lines:")
+        try:
+            with open(LOG_FILE, 'r') as f:
+                lines = f.readlines()
+                for line in lines[-10:]:
+                    print("  " + line.strip())
+        except Exception as e:
+            print(f"  Failed to read logs: {e}")
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python manage_webui.py [setup|start|stop|restart|status]")
+        sys.exit(1)
+
+    cmd = sys.argv[1].lower()
+
+    if cmd == 'setup':
+        setup()
+    elif cmd == 'start':
+        start()
+    elif cmd == 'stop':
+        stop()
+    elif cmd == 'restart':
+        stop()
+        time.sleep(1)
+        start()
+    elif cmd == 'status':
+        status()
+    else:
+        print(f"Unknown command: {cmd}", file=sys.stderr)
+        print("Available commands: setup, start, stop, restart, status")
+        sys.exit(1)
+
+if __name__ == '__main__':
+    main()

restart.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+import os
+import sys
+import time
+
+# Change directory to the project root
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+
+try:
+    import manage_webui
+except ImportError:
+    print("Error: manage_webui.py not found in the project root.", file=sys.stderr)
+    sys.exit(1)
+
+if __name__ == '__main__':
+    manage_webui.stop()
+    time.sleep(1)
+    
+    # Setup check and auto-install baked in
+    if not os.path.exists(manage_webui.VENV_DIR):
+        print("Virtual environment not found. Initializing setup...")
+        manage_webui.setup()
+        print("")
+        
+    manage_webui.start()

scripts/1_clear_workspace.sh

@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+source ~/miniconda3/etc/profile.d/conda.sh
+conda activate deepfacelab
+source ~/miniconda3/etc/profile.d/conda.sh
+conda activate deepfacelab
 source env.sh
 
 rm -r "$DFL_WORKSPACE"

scripts/3.1_denoise_data_dst_images.sh

@@ -2,5 +2,5 @@
 source env.sh
 
 $DFL_PYTHON "$DFL_SRC/main.py" videoed denoise-image-sequence \
-    --output-dir "$DFL_WORKSPACE/data_dst"
+    --input-dir "$DFL_WORKSPACE/data_dst"
 

scripts/4.1_download_XSeg_generic.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+source env.sh
+
+wget https://github.com/githubcatw/DeepFaceLab_Linux/releases/download/xseg/model_generic_xseg.zip
+unzip -q model_generic_xseg.zip -d "$DFL_SRC"
+rm model_generic_xseg.zip

scripts/5_XSeg_generic_wf_data_dst_apply.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+source env.sh
+
+$DFL_PYTHON "$DFL_SRC/main.py" xseg apply \
+    --input-dir "$DFL_WORKSPACE/data_dst/aligned" \
+    --model-dir "$DFL_SRC/model_generic_xseg"

scripts/5_XSeg_generic_wf_data_src_apply.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+source env.sh
+
+$DFL_PYTHON "$DFL_SRC/main.py" xseg apply \
+    --input-dir "$DFL_WORKSPACE/data_src/aligned" \
+    --model-dir "$DFL_SRC/model_generic_xseg"

scripts/6_export_AMP_as_dfm.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+source env.sh
+
+$DFL_PYTHON "$DFL_SRC/main.py" exportdfm \
+  --model-dir "$DFL_WORKSPACE/model" \
+  --model AMP

scripts/6_export_SAEHD_as_dfm.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+source env.sh
+
+$DFL_PYTHON "$DFL_SRC/main.py" exportdfm \
+  --model-dir "$DFL_WORKSPACE/model" \
+  --model SAEHD

scripts/6_train_Quick96.sh

@@ -4,8 +4,8 @@ source env.sh
 $DFL_PYTHON "$DFL_SRC/main.py" train \
     --training-data-src-dir "$DFL_WORKSPACE/data_src/aligned" \
     --training-data-dst-dir "$DFL_WORKSPACE/data_dst/aligned" \
-    --pretraining-data-dir "$DFL_ROOT/pretrain_CelebA" \
+    --pretraining-data-dir "$DFL_SRC/pretrain_CelebA" \
-    --pretrained-model-dir "$DFL_ROOT/pretrain_Quick96" \
+    --pretrained-model-dir "$DFL_SRC/pretrain_Quick96" \
     --model-dir "$DFL_WORKSPACE/model" \
     --model Quick96
 

scripts/6_train_SAEHD.sh

@@ -4,7 +4,7 @@ source env.sh
 $DFL_PYTHON "$DFL_SRC/main.py" train \
     --training-data-src-dir "$DFL_WORKSPACE/data_src/aligned" \
     --training-data-dst-dir "$DFL_WORKSPACE/data_dst/aligned" \
-    --pretraining-data-dir "$DFL_ROOT/pretrain_CelebA" \
+    --pretraining-data-dir "$DFL_SRC/pretrain_CelebA" \
     --model-dir "$DFL_WORKSPACE/model" \
     --model SAEHD
 

scripts/env.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 conda activate deepfacelab
 cd ..
-export DFL_PYTHON="python3.6"
+export DFL_PYTHON="python3.7"
 export DFL_WORKSPACE="workspace/"
 
 if [ ! -d "$DFL_WORKSPACE" ]; then

start.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+import os
+import sys
+
+# Change directory to the project root
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+
+try:
+    import manage_webui
+except ImportError:
+    print("Error: manage_webui.py not found in the project root.", file=sys.stderr)
+    sys.exit(1)
+
+if __name__ == '__main__':
+    # Setup check and auto-install baked in
+    if not os.path.exists(manage_webui.VENV_DIR):
+        print("Virtual environment not found. Initializing setup...")
+        manage_webui.setup()
+        print("")
+        
+    manage_webui.start()

stop.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+import os
+import sys
+
+# Change directory to the project root
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+
+try:
+    import manage_webui
+except ImportError:
+    print("Error: manage_webui.py not found in the project root.", file=sys.stderr)
+    sys.exit(1)
+
+if __name__ == '__main__':
+    manage_webui.stop()

web_ui_server.py

@@ -0,0 +1,444 @@
+import os
+import sys
+import pty
+import select
+import signal
+import subprocess
+import threading
+import time
+from flask import Flask, jsonify, request, render_template, send_from_directory, Response
+
+app = Flask(__name__, template_folder='templates', static_folder='static')
+
+# Global process variables
+current_process = None
+master_fd = None
+log_buffer = ""
+running_script = None
+log_lock = threading.Lock()
+
+# Define script workflow categories
+SCRIPT_CATEGORIES = {
+    "workspace": {
+        "title": "Workspace & Setup",
+        "icon": "folder",
+        "scripts": [
+            {"file": "1_clear_workspace.sh", "name": "Clear Workspace", "desc": "Deletes the workspace directory and all intermediate files to start clean."}
+        ]
+    },
+    "src_video": {
+        "title": "Step 1: Source Video (data_src)",
+        "icon": "video",
+        "scripts": [
+            {"file": "2_extract_image_from_data_src.sh", "name": "Extract Images", "desc": "Extracts video frames from workspace/data_src.mp4 to PNG files."},
+            {"file": "4_data_src_extract_faces_S3FD.sh", "name": "Extract Faces (S3FD)", "desc": "Uses S3FD detector to extract aligned face crops from source frames."},
+            {"file": "4_data_src_extract_faces_MANUAL.sh", "name": "Extract Faces (Manual)", "desc": "Interactively extract or fix missing face detections manually."},
+            {"file": "4.2_data_src_sort.sh", "name": "Sort Source Faces", "desc": "Sorts source faces by similarity, luminance, blur, etc., to prune trash."}
+        ]
+    },
+    "dst_video": {
+        "title": "Step 2: Destination Video (data_dst)",
+        "icon": "video",
+        "scripts": [
+            {"file": "3_extract_image_from_data_dst.sh", "name": "Extract Images", "desc": "Extracts video frames from workspace/data_dst.mp4 to PNG files."},
+            {"file": "3.1_denoise_data_dst_images.sh", "name": "Denoise Images", "desc": "Denoises the extracted destination frames for cleaner final merge."},
+            {"file": "5_data_dst_extract_faces_S3FD.sh", "name": "Extract Faces (S3FD)", "desc": "Uses S3FD detector to extract aligned faces from destination frames."},
+            {"file": "5_data_dst_extract_faces_S3FD_+_manual_fix.sh", "name": "Extract Faces (S3FD + Manual)", "desc": "Extract faces using S3FD with manual correction fallback."},
+            {"file": "5_data_dst_extract_faces_MANUAL.sh", "name": "Extract Faces (Manual)", "desc": "Interactively extract or fix destination faces manually."}
+        ]
+    },
+    "xseg": {
+        "title": "Step 3: XSeg Masking (Optional)",
+        "icon": "scissors",
+        "scripts": [
+            {"file": "5_XSeg_train.sh", "name": "Train XSeg Mask", "desc": "Trains a custom XSeg masking model on labeled faces."},
+            {"file": "5_XSeg_data_src_mask_edit.sh", "name": "Edit Src Masks", "desc": "Label/edit XSeg masks on your source face images."},
+            {"file": "5_XSeg_data_src_mask_apply.sh", "name": "Apply Src Masks", "desc": "Applies a trained XSeg model to mask source face images."},
+            {"file": "5_XSeg_data_dst_mask_edit.sh", "name": "Edit Dst Masks", "desc": "Label/edit XSeg masks on your destination face images."},
+            {"file": "5_XSeg_data_dst_mask_apply.sh", "name": "Apply Dst Masks", "desc": "Applies a trained XSeg model to mask destination face images."}
+        ]
+    },
+    "training": {
+        "title": "Step 4: Model Training",
+        "icon": "cpu",
+        "scripts": [
+            {"file": "6_train_Quick96_no_preview.sh", "name": "Train Quick96 (Headless)", "desc": "Trains Quick96 model in the background (no local window)."},
+            {"file": "6_train_Quick96.sh", "name": "Train Quick96 (Windowed)", "desc": "Trains Quick96 model. Requires local X11 visual window."},
+            {"file": "6_train_SAEHD_no_preview.sh", "name": "Train SAEHD (Headless)", "desc": "Trains high-quality SAEHD model in the background."},
+            {"file": "6_train_SAEHD.sh", "name": "Train SAEHD (Windowed)", "desc": "Trains SAEHD model. Requires local X11 visual window."}
+        ]
+    },
+    "merging": {
+        "title": "Step 5: Face Merging",
+        "icon": "merge",
+        "scripts": [
+            {"file": "7_merge_Quick96.sh", "name": "Merge Quick96", "desc": "Merges Quick96 face swaps onto destination frames."},
+            {"file": "7_merge_SAEHD.sh", "name": "Merge SAEHD", "desc": "Merges SAEHD face swaps onto destination frames."}
+        ]
+    },
+    "export": {
+        "title": "Step 6: Export & Render",
+        "icon": "download",
+        "scripts": [
+            {"file": "8_merged_to_mp4.sh", "name": "Export to MP4", "desc": "Combines merged frames into an MP4 file (h264)."},
+            {"file": "8_merged_to_mp4_lossless.sh", "name": "Export to MP4 (Lossless)", "desc": "Combines merged frames into a lossless MP4 file."},
+            {"file": "8_merged_to_avi.sh", "name": "Export to AVI", "desc": "Combines merged frames into an uncompressed AVI file."}
+        ]
+    }
+}
+
+# Add pre-trained download links to categories
+SCRIPT_CATEGORIES["pretrain"] = {
+    "title": "Download Pre-trained Weights",
+    "icon": "cloud-download",
+    "scripts": [
+        {"file": "4.1_download_Quick96.sh", "name": "Download Quick96 pretrain", "desc": "Downloads Quick96 pretraining zip file."},
+        {"file": "4.1_download_CelebA.sh", "name": "Download CelebA pretrain", "desc": "Downloads CelebA pretraining zip file."},
+        {"file": "4.1_download_FFHQ.sh", "name": "Download FFHQ pretrain", "desc": "Downloads FFHQ pretraining zip file."}
+    ]
+}
+
+def log_reader(fd, proc):
+    global log_buffer, current_process, master_fd, running_script
+    while True:
+        try:
+            r, w, x = select.select([fd], [], [], 0.1)
+            if fd in r:
+                data = os.read(fd, 4096)
+                if not data:
+                    break
+                decoded_chunk = data.decode('utf-8', errors='replace')
+                with log_lock:
+                    log_buffer += decoded_chunk
+        except (OSError, ValueError):
+            break
+        except Exception:
+            break
+        
+        # Check if process died
+        if proc.poll() is not None:
+            # Final drain of buffer
+            try:
+                r, w, x = select.select([fd], [], [], 0.1)
+                if fd in r:
+                    data = os.read(fd, 4096)
+                    if data:
+                        decoded_chunk = data.decode('utf-8', errors='replace')
+                        with log_lock:
+                            log_buffer += decoded_chunk
+            except Exception:
+                pass
+            break
+            
+    try:
+        os.close(fd)
+    except Exception:
+        pass
+        
+    with log_lock:
+        if current_process == proc:
+            current_process = None
+            master_fd = None
+            running_script = None
+
+def get_gpu_info():
+    try:
+        result = subprocess.run(
+            ['nvidia-smi', '--query-gpu=gpu_name,utilization.gpu,utilization.memory,memory.total,memory.used,temperature.gpu', '--format=csv,noheader,nounits'],
+            stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True, timeout=2
+        )
+        if result.returncode == 0:
+            lines = result.stdout.strip().split('\n')
+            gpus = []
+            for line in lines:
+                parts = [p.strip() for p in line.split(',')]
+                if len(parts) >= 6:
+                    gpus.append({
+                        'name': parts[0],
+                        'gpu_util': parts[1] + '%',
+                        'mem_util': parts[2] + '%',
+                        'mem_total': parts[3] + ' MB',
+                        'mem_used': parts[4] + ' MB',
+                        'temp': parts[5] + '°C'
+                    })
+            return gpus
+    except Exception:
+        pass
+    return None
+
+def get_system_stats():
+    # Basic system utilization (cpu / memory)
+    # Reading from /proc/stat
+    cpu_util = "0%"
+    mem_util = "0%"
+    try:
+        # CPU calculation
+        with open('/proc/stat', 'r') as f:
+            fields = [float(column) for column in f.readline().strip().split()[1:]]
+        idle, total = fields[3], sum(fields)
+        time.sleep(0.1)
+        with open('/proc/stat', 'r') as f:
+            fields2 = [float(column) for column in f.readline().strip().split()[1:]]
+        idle2, total2 = fields2[3], sum(fields2)
+        
+        diff_idle = idle2 - idle
+        diff_total = total2 - total
+        if diff_total > 0:
+            cpu_util = f"{int((1.0 - diff_idle / diff_total) * 100)}%"
+            
+        # Memory calculation
+        with open('/proc/meminfo', 'r') as f:
+            lines = f.readlines()
+        mem_total = 1.0
+        mem_free = 0.0
+        mem_cached = 0.0
+        mem_buffers = 0.0
+        for line in lines:
+            if line.startswith('MemTotal:'):
+                mem_total = float(line.split()[1])
+            elif line.startswith('MemFree:'):
+                mem_free = float(line.split()[1])
+            elif line.startswith('Cached:'):
+                mem_cached = float(line.split()[1])
+            elif line.startswith('Buffers:'):
+                mem_buffers = float(line.split()[1])
+        mem_used = mem_total - mem_free - mem_cached - mem_buffers
+        mem_util = f"{int((mem_used / mem_total) * 100)}%"
+    except Exception:
+        pass
+        
+    return {
+        'cpu': cpu_util,
+        'mem': mem_util
+    }
+
+@app.route('/')
+def index():
+    return render_template('index.html')
+
+@app.route('/api/status')
+def status():
+    global current_process, running_script
+    is_running = current_process is not None and current_process.poll() is None
+    
+    # Get workspace stats
+    workspace_dir = os.path.join(os.path.dirname(__file__), 'workspace')
+    stats = {
+        'src_frames': 0,
+        'src_faces': 0,
+        'dst_frames': 0,
+        'dst_faces': 0,
+        'models': []
+    }
+    
+    if os.path.exists(workspace_dir):
+        def count_files(path, ext=None):
+            if not os.path.exists(path):
+                return 0
+            count = 0
+            for entry in os.scandir(path):
+                if entry.is_file():
+                    if ext is None or entry.name.lower().endswith(ext):
+                        count += 1
+            return count
+
+        stats['src_frames'] = count_files(os.path.join(workspace_dir, 'data_src'), '.png') + count_files(os.path.join(workspace_dir, 'data_src'), '.jpg')
+        stats['src_faces'] = count_files(os.path.join(workspace_dir, 'data_src', 'aligned'), '.jpg')
+        stats['dst_frames'] = count_files(os.path.join(workspace_dir, 'data_dst'), '.png') + count_files(os.path.join(workspace_dir, 'data_dst'), '.jpg')
+        stats['dst_faces'] = count_files(os.path.join(workspace_dir, 'data_dst', 'aligned'), '.jpg')
+        
+        model_dir = os.path.join(workspace_dir, 'model')
+        if os.path.exists(model_dir):
+            for entry in os.scandir(model_dir):
+                if entry.is_file() and entry.name.endswith('.dat'):
+                    stats['models'].append(entry.name)
+
+    return jsonify({
+        'running': is_running,
+        'script': running_script,
+        'gpu': get_gpu_info(),
+        'system': get_system_stats(),
+        'workspace': stats
+    })
+
+@app.route('/api/scripts')
+def list_scripts():
+    return jsonify(SCRIPT_CATEGORIES)
+
+@app.route('/api/run', methods=['POST'])
+def run_script():
+    global current_process, master_fd, log_buffer, running_script
+    if current_process is not None and current_process.poll() is None:
+        return jsonify({'error': 'A script is already running'}), 400
+        
+    data = request.json
+    script_name = data.get('script')
+    if not script_name:
+        return jsonify({'error': 'No script name specified'}), 400
+        
+    script_path = os.path.join(os.path.dirname(__file__), 'scripts', script_name)
+    if not os.path.exists(script_path):
+        return jsonify({'error': f'Script not found: {script_name}'}), 404
+        
+    # Reset log buffer
+    with log_lock:
+        log_buffer = f"=== Starting {script_name} ===\n"
+        running_script = script_name
+        
+    # Spawn the script in a pseudo-terminal
+    try:
+        m_fd, s_fd = pty.openpty()
+        
+        # We spawn the script inside the conda env's python path by launching /bin/bash in pty
+        current_process = subprocess.Popen(
+            ['/bin/bash', script_name],
+            cwd=os.path.join(os.path.dirname(__file__), 'scripts'),
+            stdin=s_fd,
+            stdout=s_fd,
+            stderr=s_fd,
+            preexec_fn=os.setsid, # Put subprocess in its own process group to kill children
+            env=os.environ.copy()
+        )
+        
+        # Close the slave file descriptor in the parent
+        os.close(s_fd)
+        
+        master_fd = m_fd
+        
+        # Start background reader thread
+        t = threading.Thread(target=log_reader, args=(m_fd, current_process))
+        t.daemon = True
+        t.start()
+        
+        return jsonify({'status': 'started', 'script': script_name})
+    except Exception as e:
+        with log_lock:
+            log_buffer += f"\nFailed to launch script: {str(e)}\n"
+            current_process = None
+            master_fd = None
+            running_script = None
+        return jsonify({'error': f'Launch error: {str(e)}'}), 500
+
+@app.route('/api/stop', methods=['POST'])
+def stop_script():
+    global current_process
+    if current_process is None or current_process.poll() is not None:
+        return jsonify({'error': 'No script is currently running'}), 400
+        
+    try:
+        # Kill the entire process group
+        pgid = os.getpgid(current_process.pid)
+        os.killpg(pgid, signal.SIGTERM)
+        time.sleep(0.5)
+        if current_process.poll() is None:
+            os.killpg(pgid, signal.SIGKILL)
+            
+        with log_lock:
+            log_buffer += "\n=== Process terminated by user ===\n"
+            
+        return jsonify({'status': 'terminated'})
+    except Exception as e:
+        return jsonify({'error': f'Error terminating process: {str(e)}'}), 500
+
+@app.route('/api/input', methods=['POST'])
+def send_input():
+    global master_fd
+    data = request.json
+    text = data.get('text', '')
+    if master_fd is None:
+        return jsonify({'error': 'No active process terminal to write to'}), 400
+        
+    try:
+        os.write(master_fd, (text + '\n').encode('utf-8'))
+        return jsonify({'status': 'sent'})
+    except Exception as e:
+        return jsonify({'error': f'Write error: {str(e)}'}), 500
+
+@app.route('/api/logs')
+def get_logs():
+    global log_buffer
+    with log_lock:
+        return jsonify({'logs': log_buffer})
+
+@app.route('/api/preview')
+def list_previews():
+    # Scan for any images in the workspace/model directory
+    model_dir = os.path.join(os.path.dirname(__file__), 'workspace', 'model')
+    if not os.path.exists(model_dir):
+        return jsonify([])
+        
+    previews = []
+    try:
+        for root, dirs, files in os.walk(model_dir):
+            for f in files:
+                if f.lower().endswith(('.jpg', '.png')):
+                    path = os.path.join(root, f)
+                    mtime = os.path.getmtime(path)
+                    rel_path = os.path.relpath(path, model_dir)
+                    # Exclude huge files if any
+                    size = os.path.getsize(path)
+                    if size < 5 * 1024 * 1024: # Less than 5MB
+                        previews.append({
+                            'name': f,
+                            'path': rel_path,
+                            'mtime': mtime,
+                            'size': size
+                        })
+        # Sort by modification time (most recent first)
+        previews.sort(key=lambda x: x['mtime'], reverse=True)
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500
+        
+    return jsonify(previews)
+
+@app.route('/api/preview/file/<path:filename>')
+def serve_preview_file(filename):
+    model_dir = os.path.join(os.path.dirname(__file__), 'workspace', 'model')
+    return send_from_directory(model_dir, filename)
+
+@app.route('/api/upload', methods=['POST'])
+def upload_file():
+    if 'file' not in request.files:
+        return jsonify({'error': 'No file part'}), 400
+    file = request.files['file']
+    target = request.form.get('target') # 'src' or 'dst'
+    
+    if file.filename == '':
+        return jsonify({'error': 'No selected file'}), 400
+        
+    if target not in ('src', 'dst'):
+        return jsonify({'error': 'Invalid upload target'}), 400
+        
+    ext = os.path.splitext(file.filename)[1].lower()
+    if ext not in ('.mp4', '.avi', '.mkv', '.mov'):
+        return jsonify({'error': 'Unsupported file format'}), 400
+        
+    workspace_dir = os.path.join(os.path.dirname(__file__), 'workspace')
+    os.makedirs(workspace_dir, exist_ok=True)
+    
+    # Save as data_src.<ext> or data_dst.<ext>
+    filename = f"data_{target}{ext}"
+    dest_path = os.path.join(workspace_dir, filename)
+    
+    # Remove existing ones with other extensions if necessary, to keep DFL working cleanly
+    for existing_ext in ('.mp4', '.avi', '.mkv', '.mov'):
+        try:
+            os.remove(os.path.join(workspace_dir, f"data_{target}{existing_ext}"))
+        except FileNotFoundError:
+            pass
+            
+    try:
+        file.save(dest_path)
+        return jsonify({'status': 'uploaded', 'filename': filename})
+    except Exception as e:
+        return jsonify({'error': f'Failed to save file: {str(e)}'}), 500
+
+if __name__ == '__main__':
+    # Make sure workspace directories exist
+    os.makedirs('templates', exist_ok=True)
+    os.makedirs('static', exist_ok=True)
+    
+    port = 8082
+    print(f"Starting DeepFaceLab Web UI Server on port {port}...")
+    print(f"Access it at http://localhost:{port}/")
+    app.run(host='0.0.0.0', port=port, debug=False)