diff --git a/src/generate_images.py b/src/generate_images.py
index e18829f..e9c87f6 100644
--- a/src/generate_images.py
+++ b/src/generate_images.py
@@ -1,86 +1,25 @@
-from xml.etree import ElementTree
 import subprocess
 import tempfile
-import zipfile
-import shutil
 import sys
 import os
 
 from PIL import Image, ImageOps
-from modules import logger
+from modules import logger, mscz
 
 RATIO = 16/9 # 16:9
 
 
-def get_elements(root, attribute):
-    return [i for i in root if i.tag == attribute]
-
-def get_element(root, attribute):
-    elems = get_elements(root, attribute)
-
-    if len(elems) > 1:
-        print(f"More than one '{attribute}' found", file=sys.stderr)
-    if len(elems) == 0:
-        raise IndexError(f"No '{attribute}' found !")
-
-    return elems[0]
-
-def create_pagebreaks(data):
-    """
-    Replaces all manual linebreaks by pagebreaks in a .mscx file (xml)
-    """
-    root = ElementTree.fromstring(data)
-
-    score = get_element(root, "Score")
-    parts = get_elements(score, "Part")
-    staffs = get_elements(score, "Staff")
-    for part in parts:
-        staffs += get_elements(part, "Staff")
-
-    changes = 0
-    for staff in staffs:
-        measures = get_elements(staff, "Measure")
-        for measure in measures:
-            layoutbreaks = get_elements(measure, "LayoutBreak")
-            for layoutbreak in layoutbreaks:
-                subtype = get_element(layoutbreak, "subtype")
-                if subtype.text == "line":
-                    subtype.text = "page"
-                    changes += 1
-
-
-    return ElementTree.tostring(root), changes
-
-def remove_footer(data):
-    """
-    Disable page footer in .mss (xml)
-    """
-    root = ElementTree.fromstring(data)
-
-    style = get_element(root, "Style")
-    show_footer = get_element(style, "showFooter")
-    show_footer.text = 0
-
-    return ElementTree.tostring(root)
-
-def prepare_mscz(source, dest):
-    shutil.copy(source, dest)
-    with zipfile.ZipFile(source) as inzip, zipfile.ZipFile(dest, "w") as outzip:
-        for inzipinfo in inzip.infolist():
-            with inzip.open(inzipinfo) as infile:
-                if inzipinfo.filename.endswith(".mscx"):
-                    new_data, changes = create_pagebreaks(infile.read())
-                    outzip.writestr(inzipinfo.filename, new_data)
-                elif inzipinfo.filename.endswith(".mss"):
-                    new_data = remove_footer(infile.read())
-                    outzip.writestr(inzipinfo.filename, new_data)
-                else:
-                    outzip.writestr(inzipinfo.filename, infile.read())
-
 def generate_images(mscz_file, base_dest):
     with tempfile.TemporaryDirectory() as tmpdirname:
         tmp_mscz = os.path.join(tmpdirname, "score.mscz")
-        prepare_mscz(mscz_file, tmp_mscz)
+        mscz.apply(
+            mscz_file,
+            tmp_mscz,
+            [
+                mscz.patches.create_pagebreaks,
+                mscz.patches.remove_footer
+            ]
+        )
         logger.log(".mscz file patched")
 
         subprocess.call(["mscore", tmp_mscz, "-o", base_dest+".png"])
diff --git a/src/images_to_video.sh b/src/images_to_video.sh
deleted file mode 100755
index b2f40c3..0000000
--- a/src/images_to_video.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/bash
-
-IN=$1
-[[ $IN ]]|| IN="concat.txt"
-FILES=$(cat $IN | grep file | awk '{print $2}' | uniq)
-
-echo $FILES
-
-# Get the larger width and height of all the images
-WIDTH=$(identify -format "%w\n" $FILES | sort -nr | head -1)
-HEIGHT=$(identify -format "%h\n" $FILES | sort -nr | head -1)
-
-echo $WIDTH x $HEIGHT
-
-# Center all the images and pad them to the larger width and height
-# Set the border color to the dominant color of the image
-for f in $FILES; do
-    BORDER_COLOR=$(magick $f -format "%[pixel:p{0,0}]" info:)
-    #BORDER_COLOR="srgb(255,255,255)"
-    echo "Border color: $BORDER_COLOR"
-    magick $f -gravity center -background none -extent ${WIDTH}x${HEIGHT} -bordercolor $BORDER_COLOR -border 0x0 $f
-done
\ No newline at end of file
diff --git a/src/modules/mscz.py b/src/modules/mscz.py
new file mode 100644
index 0000000..8f4dcb1
--- /dev/null
+++ b/src/modules/mscz.py
@@ -0,0 +1,111 @@
+from xml.etree import ElementTree
+import functools
+import zipfile
+import shutil
+
+
+"""
+Patches
+"""
+class Patches:
+    def __init__(self):
+        self._data = {}
+    def __getattr__(self, key):
+        return self._data[key]
+
+
+patches = Patches()
+
+def register_patch(file_ext):
+    def inner_wrapper(view):
+        patches._data[view.__name__] = (view, file_ext)
+
+        @functools.wraps(view)
+        def wrapped_view(**kwargs):
+            return view(**kwargs)
+
+        return wrapped_view
+    return inner_wrapper
+
+
+@register_patch("mscx")
+def create_pagebreaks(data):
+    """
+    Replaces all manual linebreaks by pagebreaks in a .mscx file (xml)
+    """
+    root = ElementTree.fromstring(data)
+
+    score = get_element(root, "Score")
+    parts = get_elements(score, "Part")
+    staffs = get_elements(score, "Staff")
+    for part in parts:
+        staffs += get_elements(part, "Staff")
+
+    for staff in staffs:
+        measures = get_elements(staff, "Measure")
+        for measure in measures:
+            layoutbreaks = get_elements(measure, "LayoutBreak")
+            for layoutbreak in layoutbreaks:
+                subtype = get_element(layoutbreak, "subtype")
+                if subtype.text == "line":
+                    subtype.text = "page"
+
+
+    return ElementTree.tostring(root)
+
+@register_patch("mss")
+def remove_footer(data):
+    """
+    Disable page footer in .mss (xml)
+    """
+    root = ElementTree.fromstring(data)
+
+    style = get_element(root, "Style")
+    show_footer = get_element(style, "showFooter")
+    show_footer.text = 0
+
+    return ElementTree.tostring(root)
+
+
+"""
+The "main" apply function
+"""
+def get_elements(root, attribute):
+    return [i for i in root if i.tag == attribute]
+
+def get_element(root, attribute):
+    elems = get_elements(root, attribute)
+
+    if len(elems) > 1:
+        print(f"More than one '{attribute}' found", file=sys.stderr)
+    if len(elems) == 0:
+        raise IndexError(f"No '{attribute}' found !")
+
+    return elems[0]
+
+def apply(source, dest, patches):
+    """
+    Apply functions to patch files inside a mscz
+    - source : source file
+    - dest : destination file, must differ
+    - patches : list of (function, file extension)
+    """
+    patches_by_ext = {}
+    for func, ext in patches:
+        if ext not in patches_by_ext:
+            patches_by_ext[ext] = []
+
+        patches_by_ext[ext].append(func)
+
+    shutil.copy(source, dest)
+    with zipfile.ZipFile(source) as inzip, zipfile.ZipFile(dest, "w") as outzip:
+        for inzipinfo in inzip.infolist():
+            with inzip.open(inzipinfo) as infile:
+                ext = inzipinfo.filename.split(".")[-1]
+                if ext in patches_by_ext:
+                    data = infile.read()
+                    for func in patches_by_ext[ext]:
+                        data = func(data)
+                    outzip.writestr(inzipinfo.filename, data)
+                else:
+                    outzip.writestr(inzipinfo.filename, infile.read())
\ No newline at end of file