122 files changed, 2087 insertions, 742 deletions

diff --git a/utils/abi-compat.sh b/utils/abi-compat.sh
index c936ac05..31f61e32 100755
--- a/utils/abi-compat.sh
+++ b/utils/abi-compat.sh
@@ -156,15 +156,16 @@ create_abi_dump() {
 		# Generate a minimal libcamera build. "lib" and "prefix" are
 		# defined explicitly to avoid system default ambiguities.
 		meson setup "$build" "$worktree" \
-			-Dlibdir=lib \
-			-Dprefix=/usr/local/ \
-			-Ddocumentation=disabled \
 			-Dcam=disabled \
-			-Dqcam=disabled \
+			-Ddocumentation=disabled \
 			-Dgstreamer=disabled \
 			-Dlc-compliance=disabled \
-			-Dtracing=disabled \
-			-Dpipelines=
+			-Dlibdir=lib \
+			-Dpipelines= \
+			-Dprefix=/usr/local/ \
+			-Dpycamera=disabled \
+			-Dqcam=disabled \
+			-Dtracing=disabled
 
 		ninja -C "$build"
 		DESTDIR="$install" ninja -C "$build" install
diff --git a/utils/checkstyle.py b/utils/checkstyle.py
index 4185c39a..f6229bbd 100755
--- a/utils/checkstyle.py
+++ b/utils/checkstyle.py
@@ -23,7 +23,6 @@ import subprocess
 import sys
 
 dependencies = {
-    'clang-format': True,
     'git': True,
 }
 
@@ -211,36 +210,66 @@ class CommitFile:
 
 class Commit:
     def __init__(self, commit):
-        self.commit = commit
+        self._commit = commit
+        self._author = None
         self._trailers = []
         self._parse()
 
-    def _parse_trailers(self, lines):
-        for index in range(1, len(lines)):
-            line = lines[index]
-            if not line:
-                break
+    def _parse_commit(self):
+        # Get and parse the commit message.
+        ret = subprocess.run(['git', 'show', '--format=%H%n%an <%ae>%n%s%n%b',
+                              '--no-patch', self.commit],
+                             stdout=subprocess.PIPE).stdout.decode('utf-8')
+        lines = ret.splitlines()
 
-            self._trailers.append(line)
+        self._commit = lines[0]
+        self._author = lines[1]
+        self._title = lines[2]
+        self._body = lines[3:]
 
-        return index
+        # Parse the trailers. Feed git-interpret-trailers with a full commit
+        # message that includes both the title and the body, as it otherwise
+        # fails to find trailers when the body contains trailers only.
+        message = self._title + '\n\n' + '\n'.join(self._body)
+        trailers = subprocess.run(['git', 'interpret-trailers', '--parse'],
+                                  input=message.encode('utf-8'),
+                                  stdout=subprocess.PIPE).stdout.decode('utf-8')
+
+        self._trailers = trailers.splitlines()
 
     def _parse(self):
-        # Get the commit title and list of files.
-        ret = subprocess.run(['git', 'show', '--format=%s%n%(trailers:only,unfold)', '--name-status',
+        self._parse_commit()
+
+        # Get the list of files. Use an empty format specifier to suppress the
+        # commit message completely.
+        ret = subprocess.run(['git', 'show', '--format=', '--name-status',
                               self.commit],
                              stdout=subprocess.PIPE).stdout.decode('utf-8')
-        lines = ret.splitlines()
-
-        self._title = lines[0]
+        self._files = [CommitFile(f) for f in ret.splitlines()]
 
-        index = self._parse_trailers(lines)
-        self._files = [CommitFile(f) for f in lines[index:] if f]
+    def __repr__(self):
+        return '\n'.join([
+            f'commit {self.commit}',
+            f'Author: {self.author}',
+            f'',
+            f'    {self.title}',
+            '',
+            '\n'.join([line and f'    {line}' or '' for line in self._body]),
+            'Trailers:',
+        ] + self.trailers)
 
     def files(self, filter='AMR'):
         return [f.filename for f in self._files if f.status in filter]
 
     @property
+    def author(self):
+        return self._author
+
+    @property
+    def commit(self):
+        return self._commit
+
+    @property
     def title(self):
         return self._title
 
@@ -278,20 +307,14 @@ class StagedChanges(Commit):
 
 class Amendment(Commit):
     def __init__(self):
-        Commit.__init__(self, '')
+        Commit.__init__(self, 'HEAD')
 
     def _parse(self):
-        # Create a title using HEAD commit and parse the trailers.
-        ret = subprocess.run(['git', 'show', '--format=%H %s%n%(trailers:only,unfold)',
-                             '--no-patch'],
-                             stdout=subprocess.PIPE).stdout.decode('utf-8')
-        lines = ret.splitlines()
-
-        self._title = 'Amendment of ' + lines[0].strip()
+        self._parse_commit()
 
-        self._parse_trailers(lines)
+        self._title = f'Amendment of "{self.title}"'
 
-        # Extract the list of modified files
+        # Extract the list of modified files.
         ret = subprocess.run(['git', 'diff', '--staged', '--name-status', 'HEAD~'],
                              stdout=subprocess.PIPE).stdout.decode('utf-8')
         self._files = [CommitFile(f) for f in ret.splitlines()]
@@ -310,40 +333,83 @@ class Amendment(Commit):
 class ClassRegistry(type):
     def __new__(cls, clsname, bases, attrs):
         newclass = super().__new__(cls, clsname, bases, attrs)
-        if bases:
-            bases[0].subclasses.append(newclass)
-            bases[0].subclasses.sort(key=lambda x: getattr(x, 'priority', 0),
-                                     reverse=True)
+        if bases and bases[0] != CheckerBase:
+            base = bases[0]
+
+            if not hasattr(base, 'subclasses'):
+                base.subclasses = []
+            base.subclasses.append(newclass)
+            base.subclasses.sort(key=lambda x: getattr(x, 'priority', 0),
+                                 reverse=True)
         return newclass
 
 
-# ------------------------------------------------------------------------------
-# Commit Checkers
-#
+class CheckerBase(metaclass=ClassRegistry):
+    @classmethod
+    def instances(cls, obj, names):
+        for instance in cls.subclasses:
+            if names and instance.__name__ not in names:
+                continue
+            if instance.supports(obj):
+                yield instance
 
-class CommitChecker(metaclass=ClassRegistry):
-    subclasses = []
+    @classmethod
+    def supports(cls, obj):
+        if hasattr(cls, 'commit_types'):
+            return type(obj) in cls.commit_types
 
-    def __init__(self):
-        pass
+        if hasattr(cls, 'patterns'):
+            for pattern in cls.patterns:
+                if fnmatch.fnmatch(os.path.basename(obj), pattern):
+                    return True
+
+        return False
 
-    #
-    # Class methods
-    #
     @classmethod
-    def checkers(cls, names):
-        for checker in cls.subclasses:
-            if names and checker.__name__ not in names:
-                continue
-            yield checker
+    def all_patterns(cls):
+        patterns = set()
+        for instance in cls.subclasses:
+            if hasattr(instance, 'patterns'):
+                patterns.update(instance.patterns)
+
+        return patterns
+
+    @classmethod
+    def check_dependencies(cls):
+        if not hasattr(cls, 'dependencies'):
+            return []
+
+        issues = []
+
+        for command in cls.dependencies:
+            if command not in dependencies:
+                dependencies[command] = shutil.which(command)
+
+            if not dependencies[command]:
+                issues.append(CommitIssue(f'Missing {command} to run {cls.__name__}'))
+
+        return issues
+
+
+# ------------------------------------------------------------------------------
+# Commit Checkers
+#
+
+class CommitChecker(CheckerBase):
+    pass
 
 
 class CommitIssue(object):
     def __init__(self, msg):
         self.msg = msg
 
+    def __str__(self):
+        return f'{Colours.fg(Colours.Yellow)}{self.msg}{Colours.reset()}'
+
 
 class HeaderAddChecker(CommitChecker):
+    commit_types = (Commit, StagedChanges, Amendment)
+
     @classmethod
     def check(cls, commit, top_level):
         issues = []
@@ -388,6 +454,8 @@ class HeaderAddChecker(CommitChecker):
 
 
 class TitleChecker(CommitChecker):
+    commit_types = (Commit,)
+
     prefix_regex = re.compile(r'^([a-zA-Z0-9_.-]+: )+')
     release_regex = re.compile(r'libcamera v[0-9]+\.[0-9]+\.[0-9]+')
 
@@ -395,11 +463,6 @@ class TitleChecker(CommitChecker):
     def check(cls, commit, top_level):
         title = commit.title
 
-        # Skip the check when validating staged changes (as done through a
-        # pre-commit hook) as there is no title to check in that case.
-        if isinstance(commit, StagedChanges):
-            return []
-
         # Ignore release commits, they don't need a prefix.
         if TitleChecker.release_regex.fullmatch(title):
             return []
@@ -455,6 +518,8 @@ class TitleChecker(CommitChecker):
 
 
 class TrailersChecker(CommitChecker):
+    commit_types = (Commit,)
+
     commit_regex = re.compile(r'[0-9a-f]{12}[0-9a-f]* \(".*"\)')
 
     coverity_regex = re.compile(r'Coverity CID=.*')
@@ -493,6 +558,8 @@ class TrailersChecker(CommitChecker):
     def check(cls, commit, top_level):
         issues = []
 
+        sob_found = False
+
         for trailer in commit.trailers:
             match = TrailersChecker.trailer_regex.fullmatch(trailer)
             if not match:
@@ -515,6 +582,13 @@ class TrailersChecker(CommitChecker):
                 issues.append(CommitIssue(f"Malformed value '{value}' for commit trailer '{key}'"))
                 continue
 
+            if key == 'Signed-off-by':
+                if value == commit.author:
+                    sob_found = True
+
+        if not sob_found:
+            issues.append(CommitIssue(f"No 'Signed-off-by' trailer matching author '{commit.author}', see Documentation/contributing.rst"))
+
         return issues
 
 
@@ -522,37 +596,8 @@ class TrailersChecker(CommitChecker):
 # Style Checkers
 #
 
-class StyleChecker(metaclass=ClassRegistry):
-    subclasses = []
-
-    def __init__(self):
-        pass
-
-    #
-    # Class methods
-    #
-    @classmethod
-    def checkers(cls, filename, names):
-        for checker in cls.subclasses:
-            if names and checker.__name__ not in names:
-                continue
-            if checker.supports(filename):
-                yield checker
-
-    @classmethod
-    def supports(cls, filename):
-        for pattern in cls.patterns:
-            if fnmatch.fnmatch(os.path.basename(filename), pattern):
-                return True
-        return False
-
-    @classmethod
-    def all_patterns(cls):
-        patterns = set()
-        for checker in cls.subclasses:
-            patterns.update(checker.patterns)
-
-        return patterns
+class StyleChecker(CheckerBase):
+    pass
 
 
 class StyleIssue(object):
@@ -562,21 +607,36 @@ class StyleIssue(object):
         self.line = line
         self.msg = msg
 
+    def __str__(self):
+        s = []
+        s.append(f'{Colours.fg(Colours.Yellow)}#{self.line_number}: {self.msg}{Colours.reset()}')
+        if self.line is not None:
+            s.append(f'{Colours.fg(Colours.Yellow)}+{self.line.rstrip()}{Colours.reset()}')
+
+            if self.position is not None:
+                # Align the position marker by using the original line with
+                # all characters except for tabs replaced with spaces. This
+                # ensures proper alignment regardless of how the code is
+                # indented.
+                start = self.position[0]
+                prefix = ''.join([c if c == '\t' else ' ' for c in self.line[:start]])
+                length = self.position[1] - start - 1
+                s.append(f' {prefix}^{"~" * length}')
+
+        return '\n'.join(s)
+
 
 class HexValueChecker(StyleChecker):
     patterns = ('*.c', '*.cpp', '*.h')
 
     regex = re.compile(r'\b0[xX][0-9a-fA-F]+\b')
 
-    def __init__(self, content):
-        super().__init__()
-        self.__content = content
-
-    def check(self, line_numbers):
+    @classmethod
+    def check(cls, content, line_numbers):
         issues = []
 
         for line_number in line_numbers:
-            line = self.__content[line_number - 1]
+            line = content[line_number - 1]
             match = HexValueChecker.regex.search(line)
             if not match:
                 continue
@@ -600,15 +660,12 @@ class IncludeChecker(StyleChecker):
                'cwchar', 'cwctype', 'math.h')
     include_regex = re.compile(r'^#include <([a-z.]*)>')
 
-    def __init__(self, content):
-        super().__init__()
-        self.__content = content
-
-    def check(self, line_numbers):
+    @classmethod
+    def check(self, content, line_numbers):
         issues = []
 
         for line_number in line_numbers:
-            line = self.__content[line_number - 1]
+            line = content[line_number - 1]
             match = IncludeChecker.include_regex.match(line)
             if not match:
                 continue
@@ -634,14 +691,11 @@ class LogCategoryChecker(StyleChecker):
     log_regex = re.compile(r'\bLOG\((Debug|Info|Warning|Error|Fatal)\)')
     patterns = ('*.cpp',)
 
-    def __init__(self, content):
-        super().__init__()
-        self.__content = content
-
-    def check(self, line_numbers):
+    @classmethod
+    def check(cls, content, line_numbers):
         issues = []
         for line_number in line_numbers:
-            line = self.__content[line_number-1]
+            line = content[line_number - 1]
             match = LogCategoryChecker.log_regex.search(line)
             if not match:
                 continue
@@ -655,14 +709,11 @@ class LogCategoryChecker(StyleChecker):
 class MesonChecker(StyleChecker):
     patterns = ('meson.build',)
 
-    def __init__(self, content):
-        super().__init__()
-        self.__content = content
-
-    def check(self, line_numbers):
+    @classmethod
+    def check(cls, content, line_numbers):
         issues = []
         for line_number in line_numbers:
-            line = self.__content[line_number-1]
+            line = content[line_number - 1]
             pos = line.find('\t')
             if pos != -1:
                 issues.append(StyleIssue(line_number, [pos, pos], line,
@@ -670,57 +721,18 @@ class MesonChecker(StyleChecker):
         return issues
 
 
-class Pep8Checker(StyleChecker):
-    patterns = ('*.py',)
-    results_regex = re.compile(r'stdin:([0-9]+):([0-9]+)(.*)')
-
-    def __init__(self, content):
-        super().__init__()
-        self.__content = content
-
-    def check(self, line_numbers):
-        issues = []
-        data = ''.join(self.__content).encode('utf-8')
-
-        try:
-            ret = subprocess.run(['pycodestyle', '--ignore=E501', '-'],
-                                 input=data, stdout=subprocess.PIPE)
-        except FileNotFoundError:
-            issues.append(StyleIssue(0, None, None, 'Please install pycodestyle to validate python additions'))
-            return issues
-
-        results = ret.stdout.decode('utf-8').splitlines()
-        for item in results:
-            search = re.search(Pep8Checker.results_regex, item)
-            line_number = int(search.group(1))
-            position = int(search.group(2))
-            msg = search.group(3)
-
-            if line_number in line_numbers:
-                line = self.__content[line_number - 1]
-                issues.append(StyleIssue(line_number, None, line, msg))
-
-        return issues
-
-
 class ShellChecker(StyleChecker):
+    dependencies = ('shellcheck',)
     patterns = ('*.sh',)
     results_line_regex = re.compile(r'In - line ([0-9]+):')
 
-    def __init__(self, content):
-        super().__init__()
-        self.__content = content
-
-    def check(self, line_numbers):
+    @classmethod
+    def check(cls, content, line_numbers):
         issues = []
-        data = ''.join(self.__content).encode('utf-8')
+        data = ''.join(content).encode('utf-8')
 
-        try:
-            ret = subprocess.run(['shellcheck', '-Cnever', '-'],
-                                 input=data, stdout=subprocess.PIPE)
-        except FileNotFoundError:
-            issues.append(StyleIssue(0, None, None, 'Please install shellcheck to validate shell script additions'))
-            return issues
+        ret = subprocess.run(['shellcheck', '-Cnever', '-'],
+                             input=data, stdout=subprocess.PIPE)
 
         results = ret.stdout.decode('utf-8').splitlines()
         for nr, item in enumerate(results):
@@ -742,40 +754,12 @@ class ShellChecker(StyleChecker):
 # Formatters
 #
 
-class Formatter(metaclass=ClassRegistry):
-    subclasses = []
-
-    def __init__(self):
-        pass
-
-    #
-    # Class methods
-    #
-    @classmethod
-    def formatters(cls, filename, names):
-        for formatter in cls.subclasses:
-            if names and formatter.__name__ not in names:
-                continue
-            if formatter.supports(filename):
-                yield formatter
-
-    @classmethod
-    def supports(cls, filename):
-        for pattern in cls.patterns:
-            if fnmatch.fnmatch(os.path.basename(filename), pattern):
-                return True
-        return False
-
-    @classmethod
-    def all_patterns(cls):
-        patterns = set()
-        for formatter in cls.subclasses:
-            patterns.update(formatter.patterns)
-
-        return patterns
+class Formatter(CheckerBase):
+    pass
 
 
 class CLangFormatter(Formatter):
+    dependencies = ('clang-format',)
     patterns = ('*.c', '*.cpp', '*.h')
     priority = -1
 
@@ -904,6 +888,17 @@ class IncludeOrderFormatter(Formatter):
         return '\n'.join(lines)
 
 
+class Pep8Formatter(Formatter):
+    dependencies = ('autopep8',)
+    patterns = ('*.py',)
+
+    @classmethod
+    def format(cls, filename, data):
+        ret = subprocess.run(['autopep8', '--ignore=E501', '-'],
+                             input=data.encode('utf-8'), stdout=subprocess.PIPE)
+        return ret.stdout.decode('utf-8')
+
+
 class StripTrailingSpaceFormatter(Formatter):
     patterns = ('*.c', '*.cpp', '*.h', '*.py', 'meson.build')
 
@@ -919,6 +914,24 @@ class StripTrailingSpaceFormatter(Formatter):
 # Style checking
 #
 
+def check_commit(top_level, commit, checkers):
+    issues = []
+
+    # Apply the commit checkers first.
+    for checker in CommitChecker.instances(commit, checkers):
+        issues_ = checker.check_dependencies()
+        if issues_:
+            issues += issues_
+            continue
+
+        issues += checker.check(commit, top_level)
+
+    for issue in issues:
+        print(issue)
+
+    return len(issues)
+
+
 def check_file(top_level, commit, filename, checkers):
     # Extract the line numbers touched by the commit.
     commit_diff = commit.get_diff(top_level, filename)
@@ -934,9 +947,15 @@ def check_file(top_level, commit, filename, checkers):
     # Format the file after the commit with all formatters and compute the diff
     # between the unformatted and formatted contents.
     after = commit.get_file(filename)
+    issues = []
 
     formatted = after
-    for formatter in Formatter.formatters(filename, checkers):
+    for formatter in Formatter.instances(filename, checkers):
+        issues_ = formatter.check_dependencies()
+        if issues_:
+            issues += issues_
+            continue
+
         formatted = formatter.format(filename, formatted)
 
     after = after.splitlines(True)
@@ -949,11 +968,14 @@ def check_file(top_level, commit, filename, checkers):
     formatted_diff = [hunk for hunk in formatted_diff if hunk.intersects(lines)]
 
     # Check for code issues not related to formatting.
-    issues = []
-    for checker in StyleChecker.checkers(filename, checkers):
-        checker = checker(after)
+    for checker in StyleChecker.instances(filename, checkers):
+        issues_ = checker.check_dependencies()
+        if issues_:
+            issues += issues_
+            continue
+
         for hunk in commit_diff:
-            issues += checker.check(hunk.side('to').touched)
+            issues += checker.check(after, hunk.side('to').touched)
 
     # Print the detected issues.
     if len(issues) == 0 and len(formatted_diff) == 0:
@@ -967,23 +989,9 @@ def check_file(top_level, commit, filename, checkers):
             print(hunk)
 
     if len(issues):
-        issues = sorted(issues, key=lambda i: i.line_number)
+        issues = sorted(issues, key=lambda i: getattr(i, 'line_number', -1))
         for issue in issues:
-            print('%s#%u: %s%s' % (Colours.fg(Colours.Yellow), issue.line_number,
-                                   issue.msg, Colours.reset()))
-            if issue.line is not None:
-                print('%s+%s%s' % (Colours.fg(Colours.Yellow), issue.line.rstrip(),
-                                   Colours.reset()))
-
-                if issue.position is not None:
-                    # Align the position marker by using the original line with
-                    # all characters except for tabs replaced with spaces. This
-                    # ensures proper alignment regardless of how the code is
-                    # indented.
-                    start = issue.position[0]
-                    prefix = ''.join([c if c == '\t' else ' ' for c in issue.line[:start]])
-                    length = issue.position[1] - start - 1
-                    print(' ' + prefix + '^' + '~' * length)
+            print(issue)
 
     return len(formatted_diff) + len(issues)
 
@@ -995,13 +1003,8 @@ def check_style(top_level, commit, checkers):
     print(title)
     print(separator)
 
-    issues = 0
-
     # Apply the commit checkers first.
-    for checker in CommitChecker.checkers(checkers):
-        for issue in checker.check(commit, top_level):
-            print('%s%s%s' % (Colours.fg(Colours.Yellow), issue.msg, Colours.reset()))
-            issues += 1
+    issues = check_commit(top_level, commit, checkers)
 
     # Filter out files we have no checker for.
     patterns = set()
@@ -1073,7 +1076,7 @@ def main(argv):
     if args.checkers:
         args.checkers = args.checkers.split(',')
 
-    # Check for required dependencies.
+    # Check for required common dependencies.
     for command, mandatory in dependencies.items():
         found = shutil.which(command)
         if mandatory and not found:
diff --git a/utils/codegen/controls.py b/utils/codegen/controls.py
new file mode 100644
index 00000000..03c77cc6
--- /dev/null
+++ b/utils/codegen/controls.py
@@ -0,0 +1,120 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2019, Google Inc.
+#
+# Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+#
+# Helper classes to handle source code generation for libcamera controls
+
+
+class ControlEnum(object):
+    def __init__(self, data):
+        self.__data = data
+
+    @property
+    def description(self):
+        """The enum description"""
+        return self.__data.get('description')
+
+    @property
+    def name(self):
+        """The enum name"""
+        return self.__data.get('name')
+
+    @property
+    def value(self):
+        """The enum value"""
+        return self.__data.get('value')
+
+
+class Control(object):
+    def __init__(self, name, data, vendor):
+        self.__name = name
+        self.__data = data
+        self.__enum_values = None
+        self.__size = None
+        self.__vendor = vendor
+
+        enum_values = data.get('enum')
+        if enum_values is not None:
+            self.__enum_values = [ControlEnum(enum) for enum in enum_values]
+
+        size = self.__data.get('size')
+        if size is not None:
+            if len(size) == 0:
+                raise RuntimeError(f'Control `{self.__name}` size must have at least one dimension')
+
+            # Compute the total number of elements in the array. If any of the
+            # array dimension is a string, the array is variable-sized.
+            num_elems = 1
+            for dim in size:
+                if type(dim) is str:
+                    num_elems = 0
+                    break
+
+                dim = int(dim)
+                if dim <= 0:
+                    raise RuntimeError(f'Control `{self.__name}` size must have positive values only')
+
+                num_elems *= dim
+
+            self.__size = num_elems
+
+    @property
+    def description(self):
+        """The control description"""
+        return self.__data.get('description')
+
+    @property
+    def enum_values(self):
+        """The enum values, if the control is an enumeration"""
+        if self.__enum_values is None:
+            return
+        for enum in self.__enum_values:
+            yield enum
+
+    @property
+    def enum_values_count(self):
+        """The number of enum values, if the control is an enumeration"""
+        if self.__enum_values is None:
+            return 0
+        return len(self.__enum_values)
+
+    @property
+    def is_enum(self):
+        """Is the control an enumeration"""
+        return self.__enum_values is not None
+
+    @property
+    def vendor(self):
+        """The vendor string, or None"""
+        return self.__vendor
+
+    @property
+    def name(self):
+        """The control name (CamelCase)"""
+        return self.__name
+
+    @property
+    def type(self):
+        typ = self.__data.get('type')
+        size = self.__data.get('size')
+
+        if typ == 'string':
+            return 'std::string'
+
+        if self.__size is None:
+            return typ
+
+        if self.__size:
+            return f"Span<const {typ}, {self.__size}>"
+        else:
+            return f"Span<const {typ}>"
+
+    @property
+    def element_type(self):
+        return self.__data.get('type')
+
+    @property
+    def size(self):
+        return self.__size
diff --git a/utils/codegen/gen-controls.py b/utils/codegen/gen-controls.py
new file mode 100755
index 00000000..3034e9a5
--- /dev/null
+++ b/utils/codegen/gen-controls.py
@@ -0,0 +1,109 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2019, Google Inc.
+#
+# Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+#
+# Generate control definitions from YAML
+
+import argparse
+import jinja2
+import os
+import sys
+import yaml
+
+from controls import Control
+
+
+def snake_case(s):
+    return ''.join([c.isupper() and ('_' + c) or c for c in s]).strip('_')
+
+
+def format_description(description):
+    description = description.strip('\n').split('\n')
+    for i in range(1, len(description)):
+        line = description[i]
+        description[i] = (line and ' * ' or ' *') + line
+    return '\n'.join(description)
+
+
+def extend_control(ctrl, id, ranges):
+    ctrl.id = ranges[ctrl.vendor] + id + 1
+
+    if ctrl.vendor != 'libcamera':
+        ctrl.namespace = f'{ctrl.vendor}::'
+    else:
+        ctrl.namespace = ''
+
+    return ctrl
+
+
+def main(argv):
+
+    # Parse command line arguments
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--mode', '-m', type=str, required=True, choices=['controls', 'properties'],
+                        help='Mode of operation')
+    parser.add_argument('--output', '-o', metavar='file', type=str,
+                        help='Output file name. Defaults to standard output if not specified.')
+    parser.add_argument('--ranges', '-r', type=str, required=True,
+                        help='Control id range reservation file.')
+    parser.add_argument('--template', '-t', dest='template', type=str, required=True,
+                        help='Template file name.')
+    parser.add_argument('input', type=str, nargs='+',
+                        help='Input file name.')
+
+    args = parser.parse_args(argv[1:])
+
+    ranges = {}
+    with open(args.ranges, 'rb') as f:
+        data = open(args.ranges, 'rb').read()
+        ranges = yaml.safe_load(data)['ranges']
+
+    controls = {}
+    for input in args.input:
+        data = yaml.safe_load(open(input, 'rb').read())
+
+        vendor = data['vendor']
+        if vendor not in ranges.keys():
+            raise RuntimeError(f'Control id range is not defined for vendor {vendor}')
+
+        ctrls = controls.setdefault(vendor, [])
+
+        for i, ctrl in enumerate(data['controls']):
+            ctrl = Control(*ctrl.popitem(), vendor)
+            ctrls.append(extend_control(ctrl, i, ranges))
+
+    # Sort the vendors by range numerical value
+    controls = [[vendor, ctrls] for vendor, ctrls in controls.items()]
+    controls.sort(key=lambda item: ranges[item[0]])
+
+    filename = {
+        'controls': 'control_ids',
+        'properties': 'property_ids',
+    }[args.mode]
+
+    data = {
+        'filename': filename,
+        'mode': args.mode,
+        'controls': controls,
+    }
+
+    env = jinja2.Environment()
+    env.filters['format_description'] = format_description
+    env.filters['snake_case'] = snake_case
+    template = env.from_string(open(args.template, 'r', encoding='utf-8').read())
+    string = template.render(data)
+
+    if args.output:
+        output = open(args.output, 'w', encoding='utf-8')
+        output.write(string)
+        output.close()
+    else:
+        sys.stdout.write(string)
+
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))
diff --git a/utils/gen-formats.py b/utils/codegen/gen-formats.py
index 0c0932a5..0c0932a5 100755
--- a/utils/gen-formats.py
+++ b/utils/codegen/gen-formats.py
diff --git a/utils/codegen/gen-gst-controls.py b/utils/codegen/gen-gst-controls.py
new file mode 100755
index 00000000..2601a675
--- /dev/null
+++ b/utils/codegen/gen-gst-controls.py
@@ -0,0 +1,182 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2019, Google Inc.
+# Copyright (C) 2024, Jaslo Ziska
+#
+# Authors:
+# Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+# Jaslo Ziska <jaslo@ziska.de>
+#
+# Generate gstreamer control properties from YAML
+
+import argparse
+import jinja2
+import re
+import sys
+import yaml
+
+from controls import Control
+
+
+exposed_controls = [
+    'AeEnable', 'AeMeteringMode', 'AeConstraintMode', 'AeExposureMode',
+    'ExposureValue', 'ExposureTime', 'AnalogueGain', 'AeFlickerPeriod',
+    'Brightness', 'Contrast', 'AwbEnable', 'AwbMode', 'ColourGains',
+    'Saturation', 'Sharpness', 'ColourCorrectionMatrix', 'ScalerCrop',
+    'DigitalGain', 'AfMode', 'AfRange', 'AfSpeed', 'AfMetering', 'AfWindows',
+    'LensPosition', 'Gamma',
+]
+
+
+def find_common_prefix(strings):
+    prefix = strings[0]
+
+    for string in strings[1:]:
+        while string[:len(prefix)] != prefix and prefix:
+            prefix = prefix[:len(prefix) - 1]
+        if not prefix:
+            break
+
+    return prefix
+
+
+def format_description(description):
+    # Substitute doxygen keywords \sa (see also) and \todo
+    description = re.sub(r'\\sa((?: \w+)+)',
+                         lambda match: 'See also: ' + ', '.join(
+                             map(kebab_case, match.group(1).strip().split(' '))
+                         ) + '.', description)
+    description = re.sub(r'\\todo', 'Todo:', description)
+
+    description = description.strip().split('\n')
+    return '\n'.join([
+        '"' + line.replace('\\', r'\\').replace('"', r'\"') + ' "' for line in description if line
+    ]).rstrip()
+
+
+# Custom filter to allow indenting by a string prior to Jinja version 3.0
+#
+# This function can be removed and the calls to indent_str() replaced by the
+# built-in indent() filter when dropping Jinja versions older than 3.0
+def indent_str(s, indention):
+    s += '\n'
+
+    lines = s.splitlines()
+    rv = lines.pop(0)
+
+    if lines:
+        rv += '\n' + '\n'.join(
+            indention + line if line else line for line in lines
+        )
+
+    return rv
+
+
+def snake_case(s):
+    return ''.join([
+        c.isupper() and ('_' + c.lower()) or c for c in s
+    ]).strip('_')
+
+
+def kebab_case(s):
+    return snake_case(s).replace('_', '-')
+
+
+def extend_control(ctrl):
+    if ctrl.vendor != 'libcamera':
+        ctrl.namespace = f'{ctrl.vendor}::'
+        ctrl.vendor_prefix = f'{ctrl.vendor}-'
+    else:
+        ctrl.namespace = ''
+        ctrl.vendor_prefix = ''
+
+    ctrl.is_array = ctrl.size is not None
+
+    if ctrl.is_enum:
+        # Remove common prefix from enum variant names
+        prefix = find_common_prefix([enum.name for enum in ctrl.enum_values])
+        for enum in ctrl.enum_values:
+            enum.gst_name = kebab_case(enum.name.removeprefix(prefix))
+
+        ctrl.gtype = 'enum'
+        ctrl.default = '0'
+    elif ctrl.element_type == 'bool':
+        ctrl.gtype = 'boolean'
+        ctrl.default = 'false'
+    elif ctrl.element_type == 'float':
+        ctrl.gtype = 'float'
+        ctrl.default = '0'
+        ctrl.min = '-G_MAXFLOAT'
+        ctrl.max = 'G_MAXFLOAT'
+    elif ctrl.element_type == 'int32_t':
+        ctrl.gtype = 'int'
+        ctrl.default = '0'
+        ctrl.min = 'G_MININT'
+        ctrl.max = 'G_MAXINT'
+    elif ctrl.element_type == 'int64_t':
+        ctrl.gtype = 'int64'
+        ctrl.default = '0'
+        ctrl.min = 'G_MININT64'
+        ctrl.max = 'G_MAXINT64'
+    elif ctrl.element_type == 'uint8_t':
+        ctrl.gtype = 'uchar'
+        ctrl.default = '0'
+        ctrl.min = '0'
+        ctrl.max = 'G_MAXUINT8'
+    elif ctrl.element_type == 'Rectangle':
+        ctrl.is_rectangle = True
+        ctrl.default = '0'
+        ctrl.min = '0'
+        ctrl.max = 'G_MAXINT'
+    else:
+        raise RuntimeError(f'The type `{ctrl.element_type}` is unknown')
+
+    return ctrl
+
+
+def main(argv):
+    # Parse command line arguments
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--output', '-o', metavar='file', type=str,
+                        help='Output file name. Defaults to standard output if not specified.')
+    parser.add_argument('--template', '-t', dest='template', type=str, required=True,
+                        help='Template file name.')
+    parser.add_argument('input', type=str, nargs='+',
+                        help='Input file name.')
+
+    args = parser.parse_args(argv[1:])
+
+    controls = {}
+    for input in args.input:
+        data = yaml.safe_load(open(input, 'rb').read())
+
+        vendor = data['vendor']
+        ctrls = controls.setdefault(vendor, [])
+
+        for ctrl in data['controls']:
+            ctrl = Control(*ctrl.popitem(), vendor)
+
+            if ctrl.name in exposed_controls:
+                ctrls.append(extend_control(ctrl))
+
+    data = {'controls': list(controls.items())}
+
+    env = jinja2.Environment()
+    env.filters['format_description'] = format_description
+    env.filters['indent_str'] = indent_str
+    env.filters['snake_case'] = snake_case
+    env.filters['kebab_case'] = kebab_case
+    template = env.from_string(open(args.template, 'r', encoding='utf-8').read())
+    string = template.render(data)
+
+    if args.output:
+        with open(args.output, 'w', encoding='utf-8') as output:
+            output.write(string)
+    else:
+        sys.stdout.write(string)
+
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))
diff --git a/utils/gen-header.sh b/utils/codegen/gen-header.sh
index d4692758..c78f0859 100755
--- a/utils/gen-header.sh
+++ b/utils/codegen/gen-header.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
-src_dir="$1"
-dst_file="$2"
+dst_file="$1"
+shift
 
 cat <<EOF > "$dst_file"
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
@@ -16,9 +16,8 @@ cat <<EOF > "$dst_file"
 
 EOF
 
-headers=$(for header in "$src_dir"/*.h "$src_dir"/*.h.in ; do
+headers=$(for header in "$@" ; do
 	header=$(basename "$header")
-	header="${header%.in}"
 	echo "$header"
 done | sort)
 
diff --git a/utils/gen-ipa-pub-key.py b/utils/codegen/gen-ipa-pub-key.py
index dc3e7d5f..dc3e7d5f 100755
--- a/utils/gen-ipa-pub-key.py
+++ b/utils/codegen/gen-ipa-pub-key.py
diff --git a/utils/tracepoints/gen-tp-header.py b/utils/codegen/gen-tp-header.py
index 83606c32..6769c7ce 100755
--- a/utils/tracepoints/gen-tp-header.py
+++ b/utils/codegen/gen-tp-header.py
@@ -6,7 +6,6 @@
 #
 # Generate header file to contain lttng tracepoints
 
-import datetime
 import jinja2
 import pathlib
 import os
@@ -20,7 +19,6 @@ def main(argv):
     output = argv[2]
     template = argv[3]
 
-    year = datetime.datetime.now().year
     path = pathlib.Path(output).absolute().relative_to(argv[1])
 
     source = ''
@@ -28,7 +26,7 @@ def main(argv):
         source += open(fname, 'r', encoding='utf-8').read() + '\n\n'
 
     template = jinja2.Template(open(template, 'r', encoding='utf-8').read())
-    string = template.render(year=year, path=path, source=source)
+    string = template.render(path=path, source=source)
 
     f = open(output, 'w', encoding='utf-8').write(string)
 
diff --git a/utils/ipc/extract-docs.py b/utils/codegen/ipc/extract-docs.py
index 61f44cae..61f44cae 100755
--- a/utils/ipc/extract-docs.py
+++ b/utils/codegen/ipc/extract-docs.py
diff --git a/utils/ipc/generate.py b/utils/codegen/ipc/generate.py
index c2b3fcb7..dfbe659b 100755
--- a/utils/ipc/generate.py
+++ b/utils/codegen/ipc/generate.py
@@ -9,9 +9,6 @@
 import os
 import sys
 
-# TODO set sys.pycache_prefix for >= python3.8
-sys.dont_write_bytecode = True
-
 sys.path.insert(0, f'{os.path.dirname(__file__)}/mojo/public/tools/bindings')
 
 import mojo.public.tools.bindings.mojom_bindings_generator as generator
diff --git a/utils/ipc/generators/__init__.py b/utils/codegen/ipc/generators/__init__.py
index e69de29b..e69de29b 100644
--- a/utils/ipc/generators/__init__.py
+++ b/utils/codegen/ipc/generators/__init__.py
diff --git a/utils/ipc/generators/libcamera_templates/core_ipa_interface.h.tmpl b/utils/codegen/ipc/generators/libcamera_templates/core_ipa_interface.h.tmpl
index 7f2d0810..3942e570 100644
--- a/utils/ipc/generators/libcamera_templates/core_ipa_interface.h.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/core_ipa_interface.h.tmpl
@@ -15,8 +15,13 @@
 #pragma once
 
 {% if has_map %}#include <map>{% endif %}
+{% if has_string %}#include <string>{% endif %}
 {% if has_array %}#include <vector>{% endif %}
 
+#include <libcamera/controls.h>
+#include <libcamera/framebuffer.h>
+#include <libcamera/geometry.h>
+
 #include <libcamera/ipa/ipa_interface.h>
 
 namespace libcamera {
diff --git a/utils/ipc/generators/libcamera_templates/core_ipa_serializer.h.tmpl b/utils/codegen/ipc/generators/libcamera_templates/core_ipa_serializer.h.tmpl
index 036518f6..036518f6 100644
--- a/utils/ipc/generators/libcamera_templates/core_ipa_serializer.h.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/core_ipa_serializer.h.tmpl
diff --git a/utils/ipc/generators/libcamera_templates/definition_functions.tmpl b/utils/codegen/ipc/generators/libcamera_templates/definition_functions.tmpl
index 8b8509f3..8b8509f3 100644
--- a/utils/ipc/generators/libcamera_templates/definition_functions.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/definition_functions.tmpl
diff --git a/utils/ipc/generators/libcamera_templates/meson.build b/utils/codegen/ipc/generators/libcamera_templates/meson.build
index 70664eab..70664eab 100644
--- a/utils/ipc/generators/libcamera_templates/meson.build
+++ b/utils/codegen/ipc/generators/libcamera_templates/meson.build
diff --git a/utils/ipc/generators/libcamera_templates/module_ipa_interface.h.tmpl b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_interface.h.tmpl
index 4d88a3d7..5d70ea6a 100644
--- a/utils/ipc/generators/libcamera_templates/module_ipa_interface.h.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_interface.h.tmpl
@@ -14,12 +14,20 @@
 
 #pragma once
 
-#include <libcamera/ipa/core_ipa_interface.h>
-#include <libcamera/ipa/ipa_interface.h>
-
 {% if has_map %}#include <map>{% endif %}
+{% if has_string %}#include <string>{% endif %}
 {% if has_array %}#include <vector>{% endif %}
 
+#include <libcamera/base/flags.h>
+#include <libcamera/base/signal.h>
+
+#include <libcamera/controls.h>
+#include <libcamera/framebuffer.h>
+#include <libcamera/geometry.h>
+
+#include <libcamera/ipa/core_ipa_interface.h>
+#include <libcamera/ipa/ipa_interface.h>
+
 namespace libcamera {
 {%- if has_namespace %}
 {% for ns in namespace %}
diff --git a/utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl
index ce3cc5ab..ce3cc5ab 100644
--- a/utils/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_proxy.cpp.tmpl
diff --git a/utils/ipc/generators/libcamera_templates/module_ipa_proxy.h.tmpl b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_proxy.h.tmpl
index e213b18a..e213b18a 100644
--- a/utils/ipc/generators/libcamera_templates/module_ipa_proxy.h.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_proxy.h.tmpl
diff --git a/utils/ipc/generators/libcamera_templates/module_ipa_proxy_worker.cpp.tmpl b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_proxy_worker.cpp.tmpl
index 1f990d3f..1f990d3f 100644
--- a/utils/ipc/generators/libcamera_templates/module_ipa_proxy_worker.cpp.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_proxy_worker.cpp.tmpl
diff --git a/utils/ipc/generators/libcamera_templates/module_ipa_serializer.h.tmpl b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_serializer.h.tmpl
index cd5a65a9..cd5a65a9 100644
--- a/utils/ipc/generators/libcamera_templates/module_ipa_serializer.h.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/module_ipa_serializer.h.tmpl
diff --git a/utils/ipc/generators/libcamera_templates/proxy_functions.tmpl b/utils/codegen/ipc/generators/libcamera_templates/proxy_functions.tmpl
index b5797b14..b5797b14 100644
--- a/utils/ipc/generators/libcamera_templates/proxy_functions.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/proxy_functions.tmpl
diff --git a/utils/ipc/generators/libcamera_templates/serializer.tmpl b/utils/codegen/ipc/generators/libcamera_templates/serializer.tmpl
index 323e1293..323e1293 100644
--- a/utils/ipc/generators/libcamera_templates/serializer.tmpl
+++ b/utils/codegen/ipc/generators/libcamera_templates/serializer.tmpl
diff --git a/utils/ipc/generators/meson.build b/utils/codegen/ipc/generators/meson.build
index 504f1a46..504f1a46 100644
--- a/utils/ipc/generators/meson.build
+++ b/utils/codegen/ipc/generators/meson.build
diff --git a/utils/ipc/generators/mojom_libcamera_generator.py b/utils/codegen/ipc/generators/mojom_libcamera_generator.py
index b8209e51..d9c620a0 100644
--- a/utils/ipc/generators/mojom_libcamera_generator.py
+++ b/utils/codegen/ipc/generators/mojom_libcamera_generator.py
@@ -467,6 +467,7 @@ class Generator(generator.Generator):
             'enums': self.module.enums,
             'has_array': len([x for x in self.module.kinds.keys() if x[0] == 'a']) > 0,
             'has_map': len([x for x in self.module.kinds.keys() if x[0] == 'm']) > 0,
+            'has_string': len([x for x in self.module.kinds.keys() if x[0] == 's']) > 0,
             'has_namespace': self.module.mojom_namespace != '',
             'interface_event': GetEventInterface(self.module.interfaces),
             'interface_main': GetMainInterface(self.module.interfaces),
@@ -486,6 +487,7 @@ class Generator(generator.Generator):
             'enums_gen_header': [x for x in self.module.enums if x.attributes is None or 'skipHeader' not in x.attributes],
             'has_array': len([x for x in self.module.kinds.keys() if x[0] == 'a']) > 0,
             'has_map': len([x for x in self.module.kinds.keys() if x[0] == 'm']) > 0,
+            'has_string': len([x for x in self.module.kinds.keys() if x[0] == 's']) > 0,
             'structs_gen_header': [x for x in self.module.structs if x.attributes is None or 'skipHeader' not in x.attributes],
             'structs_gen_serializer': [x for x in self.module.structs if x.attributes is None or 'skipSerdes' not in x.attributes],
         }
diff --git a/utils/ipc/meson.build b/utils/codegen/ipc/meson.build
index 973a5417..f77bf324 100644
--- a/utils/ipc/meson.build
+++ b/utils/codegen/ipc/meson.build
@@ -13,6 +13,7 @@ mojom_docs_extractor = find_program('./extract-docs.py')
 mojom_templates = custom_target('mojom_templates',
                                 input : mojom_template_files,
                                 output : 'libcamera_templates.zip',
-                                command : [mojom_generator, '-o', '@OUTDIR@', 'precompile'])
+                                command : [mojom_generator, '-o', '@OUTDIR@', 'precompile'],
+                                env : py_build_env)
 
 mojom_templates_dir = meson.current_build_dir()
diff --git a/utils/ipc/mojo/README b/utils/codegen/ipc/mojo/README
index 961cabd2..961cabd2 100644
--- a/utils/ipc/mojo/README
+++ b/utils/codegen/ipc/mojo/README
diff --git a/utils/ipc/mojo/public/LICENSE b/utils/codegen/ipc/mojo/public/LICENSE
index 513e8a6a..513e8a6a 100644
--- a/utils/ipc/mojo/public/LICENSE
+++ b/utils/codegen/ipc/mojo/public/LICENSE
diff --git a/utils/ipc/mojo/public/tools/.style.yapf b/utils/codegen/ipc/mojo/public/tools/.style.yapf
index b4ebbe24..b4ebbe24 100644
--- a/utils/ipc/mojo/public/tools/.style.yapf
+++ b/utils/codegen/ipc/mojo/public/tools/.style.yapf
diff --git a/utils/ipc/mojo/public/tools/BUILD.gn b/utils/codegen/ipc/mojo/public/tools/BUILD.gn
index 5328a34a..5328a34a 100644
--- a/utils/ipc/mojo/public/tools/BUILD.gn
+++ b/utils/codegen/ipc/mojo/public/tools/BUILD.gn
diff --git a/utils/ipc/mojo/public/tools/bindings/BUILD.gn b/utils/codegen/ipc/mojo/public/tools/bindings/BUILD.gn
index eeca73ea..eeca73ea 100644
--- a/utils/ipc/mojo/public/tools/bindings/BUILD.gn
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/BUILD.gn
diff --git a/utils/ipc/mojo/public/tools/bindings/README.md b/utils/codegen/ipc/mojo/public/tools/bindings/README.md
index b27b2d01..b27b2d01 100644
--- a/utils/ipc/mojo/public/tools/bindings/README.md
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/README.md
diff --git a/utils/ipc/mojo/public/tools/bindings/checks/__init__.py b/utils/codegen/ipc/mojo/public/tools/bindings/checks/__init__.py
index e69de29b..e69de29b 100644
--- a/utils/ipc/mojo/public/tools/bindings/checks/__init__.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/checks/__init__.py
diff --git a/utils/ipc/mojo/public/tools/bindings/checks/mojom_attributes_check.py b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_attributes_check.py
index e6e4f2c9..e6e4f2c9 100644
--- a/utils/ipc/mojo/public/tools/bindings/checks/mojom_attributes_check.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_attributes_check.py
diff --git a/utils/ipc/mojo/public/tools/bindings/checks/mojom_attributes_check_unittest.py b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_attributes_check_unittest.py
index f1a50a4a..f1a50a4a 100644
--- a/utils/ipc/mojo/public/tools/bindings/checks/mojom_attributes_check_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_attributes_check_unittest.py
diff --git a/utils/ipc/mojo/public/tools/bindings/checks/mojom_definitions_check.py b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_definitions_check.py
index 702d41c3..702d41c3 100644
--- a/utils/ipc/mojo/public/tools/bindings/checks/mojom_definitions_check.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_definitions_check.py
diff --git a/utils/ipc/mojo/public/tools/bindings/checks/mojom_interface_feature_check.py b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_interface_feature_check.py
index 07f51a64..07f51a64 100644
--- a/utils/ipc/mojo/public/tools/bindings/checks/mojom_interface_feature_check.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_interface_feature_check.py
diff --git a/utils/ipc/mojo/public/tools/bindings/checks/mojom_interface_feature_check_unittest.py b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_interface_feature_check_unittest.py
index e96152fd..e96152fd 100644
--- a/utils/ipc/mojo/public/tools/bindings/checks/mojom_interface_feature_check_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_interface_feature_check_unittest.py
diff --git a/utils/ipc/mojo/public/tools/bindings/checks/mojom_restrictions_check.py b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_restrictions_check.py
index d570e26c..d570e26c 100644
--- a/utils/ipc/mojo/public/tools/bindings/checks/mojom_restrictions_check.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_restrictions_check.py
diff --git a/utils/ipc/mojo/public/tools/bindings/checks/mojom_restrictions_checks_unittest.py b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_restrictions_checks_unittest.py
index a6cd71e2..a6cd71e2 100644
--- a/utils/ipc/mojo/public/tools/bindings/checks/mojom_restrictions_checks_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/checks/mojom_restrictions_checks_unittest.py
diff --git a/utils/ipc/mojo/public/tools/bindings/concatenate-files.py b/utils/codegen/ipc/mojo/public/tools/bindings/concatenate-files.py
index 4dd26d4a..4dd26d4a 100755
--- a/utils/ipc/mojo/public/tools/bindings/concatenate-files.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/concatenate-files.py
diff --git a/utils/ipc/mojo/public/tools/bindings/concatenate_and_replace_closure_exports.py b/utils/codegen/ipc/mojo/public/tools/bindings/concatenate_and_replace_closure_exports.py
index 7d56c9f9..7d56c9f9 100755
--- a/utils/ipc/mojo/public/tools/bindings/concatenate_and_replace_closure_exports.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/concatenate_and_replace_closure_exports.py
diff --git a/utils/ipc/mojo/public/tools/bindings/gen_data_files_list.py b/utils/codegen/ipc/mojo/public/tools/bindings/gen_data_files_list.py
index c6daff03..c6daff03 100644
--- a/utils/ipc/mojo/public/tools/bindings/gen_data_files_list.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/gen_data_files_list.py
diff --git a/utils/ipc/mojo/public/tools/bindings/generate_type_mappings.py b/utils/codegen/ipc/mojo/public/tools/bindings/generate_type_mappings.py
index 4a53e2bf..4a53e2bf 100755
--- a/utils/ipc/mojo/public/tools/bindings/generate_type_mappings.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/generate_type_mappings.py
diff --git a/utils/ipc/mojo/public/tools/bindings/minify_with_terser.py b/utils/codegen/ipc/mojo/public/tools/bindings/minify_with_terser.py
index cefee7a4..cefee7a4 100755
--- a/utils/ipc/mojo/public/tools/bindings/minify_with_terser.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/minify_with_terser.py
diff --git a/utils/ipc/mojo/public/tools/bindings/mojom.gni b/utils/codegen/ipc/mojo/public/tools/bindings/mojom.gni
index 3f6e54e0..3f6e54e0 100644
--- a/utils/ipc/mojo/public/tools/bindings/mojom.gni
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/mojom.gni
diff --git a/utils/ipc/mojo/public/tools/bindings/mojom_bindings_generator.py b/utils/codegen/ipc/mojo/public/tools/bindings/mojom_bindings_generator.py
index 8c641c2a..8c641c2a 100755
--- a/utils/ipc/mojo/public/tools/bindings/mojom_bindings_generator.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/mojom_bindings_generator.py
diff --git a/utils/ipc/mojo/public/tools/bindings/mojom_bindings_generator_unittest.py b/utils/codegen/ipc/mojo/public/tools/bindings/mojom_bindings_generator_unittest.py
index 761922b6..761922b6 100644
--- a/utils/ipc/mojo/public/tools/bindings/mojom_bindings_generator_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/mojom_bindings_generator_unittest.py
diff --git a/utils/ipc/mojo/public/tools/bindings/validate_typemap_config.py b/utils/codegen/ipc/mojo/public/tools/bindings/validate_typemap_config.py
index 6bb7a209..6bb7a209 100755
--- a/utils/ipc/mojo/public/tools/bindings/validate_typemap_config.py
+++ b/utils/codegen/ipc/mojo/public/tools/bindings/validate_typemap_config.py
diff --git a/utils/ipc/mojo/public/tools/mojom/BUILD.gn b/utils/codegen/ipc/mojo/public/tools/mojom/BUILD.gn
index eafb95a1..eafb95a1 100644
--- a/utils/ipc/mojo/public/tools/mojom/BUILD.gn
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/BUILD.gn
diff --git a/utils/ipc/mojo/public/tools/mojom/README.md b/utils/codegen/ipc/mojo/public/tools/mojom/README.md
index e5d17ab0..e5d17ab0 100644
--- a/utils/ipc/mojo/public/tools/mojom/README.md
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/README.md
diff --git a/utils/ipc/mojo/public/tools/mojom/check_stable_mojom_compatibility.py b/utils/codegen/ipc/mojo/public/tools/mojom/check_stable_mojom_compatibility.py
index 35cd1cfd..35cd1cfd 100755
--- a/utils/ipc/mojo/public/tools/mojom/check_stable_mojom_compatibility.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/check_stable_mojom_compatibility.py
diff --git a/utils/ipc/mojo/public/tools/mojom/check_stable_mojom_compatibility_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/check_stable_mojom_compatibility_unittest.py
index 06769c95..06769c95 100755
--- a/utils/ipc/mojo/public/tools/mojom/check_stable_mojom_compatibility_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/check_stable_mojom_compatibility_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/const_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/const_unittest.py
index e8ed36a7..e8ed36a7 100644
--- a/utils/ipc/mojo/public/tools/mojom/const_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/const_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/enum_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/enum_unittest.py
index 9269cde5..9269cde5 100644
--- a/utils/ipc/mojo/public/tools/mojom/enum_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/enum_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/feature_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/feature_unittest.py
index 5f014e1c..5f014e1c 100644
--- a/utils/ipc/mojo/public/tools/mojom/feature_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/feature_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/BUILD.gn b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/BUILD.gn
index a0edf0eb..a0edf0eb 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/BUILD.gn
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/BUILD.gn
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/__init__.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/__init__.py
index e69de29b..e69de29b 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/__init__.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/__init__.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/error.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/error.py
index dd53b835..dd53b835 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/error.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/error.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/fileutil.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/fileutil.py
index 124f12c1..124f12c1 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/fileutil.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/fileutil.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/fileutil_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/fileutil_unittest.py
index c93d2289..c93d2289 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/fileutil_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/fileutil_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/__init__.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/__init__.py
index e69de29b..e69de29b 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/__init__.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/__init__.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/check.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/check.py
index 1efe2022..1efe2022 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/check.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/check.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/generator.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/generator.py
index 96fe3a2d..96fe3a2d 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/generator.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/generator.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/generator_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/generator_unittest.py
index 7143e07c..7143e07c 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/generator_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/generator_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/module.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/module.py
index ca71059d..ca71059d 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/module.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/module.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/module_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/module_unittest.py
index 2a4e852c..2a4e852c 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/module_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/module_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/pack.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/pack.py
index 61240426..61240426 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/pack.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/pack.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/pack_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/pack_unittest.py
index 7d8e4e01..7d8e4e01 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/pack_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/pack_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/template_expander.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/template_expander.py
index 807e2a4f..807e2a4f 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/template_expander.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/template_expander.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/translate.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/translate.py
index 83bb297f..83bb297f 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/translate.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/translate.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/translate_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/translate_unittest.py
index b4fea924..b4fea924 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/translate_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/generate/translate_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/__init__.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/__init__.py
index e69de29b..e69de29b 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/__init__.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/__init__.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/ast.py
index aae9cdb6..aae9cdb6 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/ast.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/ast_unittest.py
index b289f7b1..b289f7b1 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/ast_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/ast_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features.py
index 9687edbf..9687edbf 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features_unittest.py
index cca1764b..cca1764b 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/conditional_features_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/lexer.py
index 00136a8b..00136a8b 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/lexer.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/lexer_unittest.py
index bc9f8354..bc9f8354 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/lexer_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/lexer_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/parser.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/parser.py
index 1dffd98b..1dffd98b 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/parser.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/parser.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/parse/parser_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/parser_unittest.py
index 0a26307b..0a26307b 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom/parse/parser_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom/parse/parser_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom_parser.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom_parser.py
index 9693090e..9693090e 100755
--- a/utils/ipc/mojo/public/tools/mojom/mojom_parser.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom_parser.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom_parser_test_case.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom_parser_test_case.py
index f0ee6966..f0ee6966 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom_parser_test_case.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom_parser_test_case.py
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom_parser_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/mojom_parser_unittest.py
index 353a2b6e..353a2b6e 100644
--- a/utils/ipc/mojo/public/tools/mojom/mojom_parser_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/mojom_parser_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/stable_attribute_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/stable_attribute_unittest.py
index d10d69c6..d10d69c6 100644
--- a/utils/ipc/mojo/public/tools/mojom/stable_attribute_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/stable_attribute_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/union_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/union_unittest.py
index 6b2525e5..6b2525e5 100644
--- a/utils/ipc/mojo/public/tools/mojom/union_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/union_unittest.py
diff --git a/utils/ipc/mojo/public/tools/mojom/version_compatibility_unittest.py b/utils/codegen/ipc/mojo/public/tools/mojom/version_compatibility_unittest.py
index 45e45ec5..45e45ec5 100644
--- a/utils/ipc/mojo/public/tools/mojom/version_compatibility_unittest.py
+++ b/utils/codegen/ipc/mojo/public/tools/mojom/version_compatibility_unittest.py
diff --git a/utils/ipc/mojo/public/tools/run_all_python_unittests.py b/utils/codegen/ipc/mojo/public/tools/run_all_python_unittests.py
index 98bce18c..98bce18c 100755
--- a/utils/ipc/mojo/public/tools/run_all_python_unittests.py
+++ b/utils/codegen/ipc/mojo/public/tools/run_all_python_unittests.py
diff --git a/utils/ipc/parser.py b/utils/codegen/ipc/parser.py
index cb5608b7..8e70322d 100755
--- a/utils/ipc/parser.py
+++ b/utils/codegen/ipc/parser.py
@@ -9,9 +9,6 @@
 import os
 import sys
 
-# TODO set sys.pycache_prefix for >= python3.8
-sys.dont_write_bytecode = True
-
 # Make sure that mojom_parser.py can import mojom
 sys.path.insert(0, f'{os.path.dirname(__file__)}/mojo/public/tools/mojom')
 
diff --git a/utils/ipc/tools/README b/utils/codegen/ipc/tools/README
index 961cabd2..961cabd2 100644
--- a/utils/ipc/tools/README
+++ b/utils/codegen/ipc/tools/README
diff --git a/utils/ipc/tools/diagnosis/crbug_1001171.py b/utils/codegen/ipc/tools/diagnosis/crbug_1001171.py
index 40900d10..40900d10 100644
--- a/utils/ipc/tools/diagnosis/crbug_1001171.py
+++ b/utils/codegen/ipc/tools/diagnosis/crbug_1001171.py
diff --git a/utils/codegen/meson.build b/utils/codegen/meson.build
new file mode 100644
index 00000000..904dd66d
--- /dev/null
+++ b/utils/codegen/meson.build
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: CC0-1.0
+
+## Code generation
+
+py_build_env = environment()
+# \todo Investigate usage of PYTHONPYCACHEPREFIX for Python >= 3.8
+py_build_env.set('PYTHONDONTWRITEBYTECODE', '1')
+py_build_env.prepend('PYTHONPATH', meson.current_source_dir())
+
+py_modules += ['jinja2', 'yaml']
+
+gen_controls = files('gen-controls.py')
+gen_formats = files('gen-formats.py')
+gen_gst_controls = files('gen-gst-controls.py')
+gen_header = files('gen-header.sh')
+gen_ipa_pub_key = files('gen-ipa-pub-key.py')
+gen_tracepoints = files('gen-tp-header.py')
+
+subdir('ipc')
diff --git a/utils/gen-controls.py b/utils/gen-controls.py
deleted file mode 100755
index 56315f50..00000000
--- a/utils/gen-controls.py
+++ /dev/null
@@ -1,389 +0,0 @@
-#!/usr/bin/env python3
-# SPDX-License-Identifier: GPL-2.0-or-later
-# Copyright (C) 2019, Google Inc.
-#
-# Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
-#
-# Generate control definitions from YAML
-
-import argparse
-from functools import reduce
-import operator
-import string
-import sys
-import yaml
-import os
-
-
-class ControlEnum(object):
-    def __init__(self, data):
-        self.__data = data
-
-    @property
-    def description(self):
-        """The enum description"""
-        return self.__data.get('description')
-
-    @property
-    def name(self):
-        """The enum name"""
-        return self.__data.get('name')
-
-    @property
-    def value(self):
-        """The enum value"""
-        return self.__data.get('value')
-
-
-class Control(object):
-    def __init__(self, name, data, vendor):
-        self.__name = name
-        self.__data = data
-        self.__enum_values = None
-        self.__size = None
-        self.__vendor = vendor
-
-        enum_values = data.get('enum')
-        if enum_values is not None:
-            self.__enum_values = [ControlEnum(enum) for enum in enum_values]
-
-        size = self.__data.get('size')
-        if size is not None:
-            if len(size) == 0:
-                raise RuntimeError(f'Control `{self.__name}` size must have at least one dimension')
-
-            # Compute the total number of elements in the array. If any of the
-            # array dimension is a string, the array is variable-sized.
-            num_elems = 1
-            for dim in size:
-                if type(dim) is str:
-                    num_elems = 0
-                    break
-
-                dim = int(dim)
-                if dim <= 0:
-                    raise RuntimeError(f'Control `{self.__name}` size must have positive values only')
-
-                num_elems *= dim
-
-            self.__size = num_elems
-
-    @property
-    def description(self):
-        """The control description"""
-        return self.__data.get('description')
-
-    @property
-    def enum_values(self):
-        """The enum values, if the control is an enumeration"""
-        if self.__enum_values is None:
-            return
-        for enum in self.__enum_values:
-            yield enum
-
-    @property
-    def is_enum(self):
-        """Is the control an enumeration"""
-        return self.__enum_values is not None
-
-    @property
-    def vendor(self):
-        """The vendor string, or None"""
-        return self.__vendor
-
-    @property
-    def name(self):
-        """The control name (CamelCase)"""
-        return self.__name
-
-    @property
-    def type(self):
-        typ = self.__data.get('type')
-        size = self.__data.get('size')
-
-        if typ == 'string':
-            return 'std::string'
-
-        if self.__size is None:
-            return typ
-
-        if self.__size:
-            return f"Span<const {typ}, {self.__size}>"
-        else:
-            return f"Span<const {typ}>"
-
-
-def snake_case(s):
-    return ''.join([c.isupper() and ('_' + c) or c for c in s]).strip('_')
-
-
-def format_description(description):
-    description = description.strip('\n').split('\n')
-    description[0] = '\\brief ' + description[0]
-    return '\n'.join([(line and ' * ' or ' *') + line for line in description])
-
-
-def generate_cpp(controls):
-    enum_doc_start_template = string.Template('''/**
- * \\enum ${name}Enum
- * \\brief Supported ${name} values''')
-    enum_doc_value_template = string.Template(''' * \\var ${value}
-${description}''')
-    doc_template = string.Template('''/**
- * \\var ${name}
-${description}
- */''')
-    def_template = string.Template('extern const Control<${type}> ${name}(${id_name}, "${name}");')
-    enum_values_doc = string.Template('''/**
- * \\var ${name}Values
- * \\brief List of all $name supported values
- */''')
-    enum_values_start = string.Template('''extern const std::array<const ControlValue, ${size}> ${name}Values = {''')
-    enum_values_values = string.Template('''\tstatic_cast<int32_t>(${name}),''')
-    name_value_map_doc = string.Template('''/**
- * \\var ${name}NameValueMap
- * \\brief Map of all $name supported value names (in std::string format) to value
- */''')
-    name_value_map_start = string.Template('''extern const std::map<std::string, ${type}> ${name}NameValueMap = {''')
-    name_value_values = string.Template('''\t{ "${name}", ${name} },''')
-
-    ctrls_doc = {}
-    ctrls_def = {}
-    ctrls_map = []
-
-    for ctrl in controls:
-        id_name = snake_case(ctrl.name).upper()
-
-        vendor = ctrl.vendor
-        if vendor not in ctrls_doc:
-            ctrls_doc[vendor] = []
-            ctrls_def[vendor] = []
-
-        info = {
-            'name': ctrl.name,
-            'type': ctrl.type,
-            'description': format_description(ctrl.description),
-            'id_name': id_name,
-        }
-
-        target_doc = ctrls_doc[vendor]
-        target_def = ctrls_def[vendor]
-
-        if ctrl.is_enum:
-            enum_doc = []
-            enum_doc.append(enum_doc_start_template.substitute(info))
-
-            num_entries = 0
-            for enum in ctrl.enum_values:
-                value_info = {
-                    'name': ctrl.name,
-                    'value': enum.name,
-                    'description': format_description(enum.description),
-                }
-                enum_doc.append(enum_doc_value_template.substitute(value_info))
-                num_entries += 1
-
-            enum_doc = '\n *\n'.join(enum_doc)
-            enum_doc += '\n */'
-            target_doc.append(enum_doc)
-
-            values_info = {
-                'name': info['name'],
-                'type': ctrl.type,
-                'size': num_entries,
-            }
-            target_doc.append(enum_values_doc.substitute(values_info))
-            target_def.append(enum_values_start.substitute(values_info))
-            for enum in ctrl.enum_values:
-                value_info = {
-                    'name': enum.name
-                }
-                target_def.append(enum_values_values.substitute(value_info))
-            target_def.append("};")
-
-            target_doc.append(name_value_map_doc.substitute(values_info))
-            target_def.append(name_value_map_start.substitute(values_info))
-            for enum in ctrl.enum_values:
-                value_info = {
-                    'name': enum.name
-                }
-                target_def.append(name_value_values.substitute(value_info))
-            target_def.append("};")
-
-        target_doc.append(doc_template.substitute(info))
-        target_def.append(def_template.substitute(info))
-
-        vendor_ns = vendor + '::' if vendor != "libcamera" else ''
-        ctrls_map.append('\t{ ' + vendor_ns + id_name + ', &' + vendor_ns + ctrl.name + ' },')
-
-    vendor_ctrl_doc_sub = []
-    vendor_ctrl_template = string.Template('''
-/**
- * \\brief Namespace for ${vendor} controls
- */
-namespace ${vendor} {
-
-${vendor_controls_str}
-
-} /* namespace ${vendor} */''')
-
-    for vendor in [v for v in ctrls_doc.keys() if v not in ['libcamera']]:
-        vendor_ctrl_doc_sub.append(vendor_ctrl_template.substitute({'vendor': vendor, 'vendor_controls_str': '\n\n'.join(ctrls_doc[vendor])}))
-
-    vendor_ctrl_def_sub = []
-    for vendor in [v for v in ctrls_def.keys() if v not in ['libcamera']]:
-        vendor_ctrl_def_sub.append(vendor_ctrl_template.substitute({'vendor': vendor, 'vendor_controls_str': '\n'.join(ctrls_def[vendor])}))
-
-    return {
-        'controls_doc': '\n\n'.join(ctrls_doc['libcamera']),
-        'controls_def': '\n'.join(ctrls_def['libcamera']),
-        'controls_map': '\n'.join(ctrls_map),
-        'vendor_controls_doc': '\n'.join(vendor_ctrl_doc_sub),
-        'vendor_controls_def': '\n'.join(vendor_ctrl_def_sub),
-    }
-
-
-def generate_h(controls, mode, ranges):
-    enum_template_start = string.Template('''enum ${name}Enum {''')
-    enum_value_template = string.Template('''\t${name} = ${value},''')
-    enum_values_template = string.Template('''extern const std::array<const ControlValue, ${size}> ${name}Values;''')
-    name_value_map_template = string.Template('''extern const std::map<std::string, ${type}> ${name}NameValueMap;''')
-    template = string.Template('''extern const Control<${type}> ${name};''')
-
-    ctrls = {}
-    ids = {}
-    id_value = {}
-
-    for ctrl in controls:
-        id_name = snake_case(ctrl.name).upper()
-
-        vendor = ctrl.vendor
-        if vendor not in ctrls:
-            if vendor not in ranges.keys():
-                raise RuntimeError(f'Control id range is not defined for vendor {vendor}')
-            id_value[vendor] = ranges[vendor] + 1
-            ids[vendor] = []
-            ctrls[vendor] = []
-
-        target_ids = ids[vendor]
-        target_ids.append('\t' + id_name + ' = ' + str(id_value[vendor]) + ',')
-
-        info = {
-            'name': ctrl.name,
-            'type': ctrl.type,
-        }
-
-        target_ctrls = ctrls[vendor]
-
-        if ctrl.is_enum:
-            target_ctrls.append(enum_template_start.substitute(info))
-
-            num_entries = 0
-            for enum in ctrl.enum_values:
-                value_info = {
-                    'name': enum.name,
-                    'value': enum.value,
-                }
-                target_ctrls.append(enum_value_template.substitute(value_info))
-                num_entries += 1
-            target_ctrls.append("};")
-
-            values_info = {
-                'name': info['name'],
-                'type': ctrl.type,
-                'size': num_entries,
-            }
-            target_ctrls.append(enum_values_template.substitute(values_info))
-            target_ctrls.append(name_value_map_template.substitute(values_info))
-
-        target_ctrls.append(template.substitute(info))
-        id_value[vendor] += 1
-
-    vendor_template = string.Template('''
-namespace ${vendor} {
-
-#define LIBCAMERA_HAS_${vendor_def}_VENDOR_${mode}
-
-enum {
-${vendor_enums}
-};
-
-${vendor_controls}
-
-} /* namespace ${vendor} */
-''')
-
-    vendor_sub = []
-    for vendor in [v for v in ctrls.keys() if v != 'libcamera']:
-        vendor_sub.append(vendor_template.substitute({'mode': mode.upper(),
-                                                      'vendor': vendor,
-                                                      'vendor_def': vendor.upper(),
-                                                      'vendor_enums': '\n'.join(ids[vendor]),
-                                                      'vendor_controls': '\n'.join(ctrls[vendor])}))
-
-    return {
-        'ids': '\n'.join(ids['libcamera']),
-        'controls': '\n'.join(ctrls['libcamera']),
-        'vendor_controls': '\n'.join(vendor_sub)
-    }
-
-
-def fill_template(template, data):
-
-    template = open(template, 'rb').read()
-    template = template.decode('utf-8')
-    template = string.Template(template)
-    return template.substitute(data)
-
-
-def main(argv):
-
-    # Parse command line arguments
-    parser = argparse.ArgumentParser()
-    parser.add_argument('--mode', '-m', type=str, required=True, choices=['controls', 'properties'],
-                        help='Mode of operation')
-    parser.add_argument('--output', '-o', metavar='file', type=str,
-                        help='Output file name. Defaults to standard output if not specified.')
-    parser.add_argument('--ranges', '-r', type=str, required=True,
-                        help='Control id range reservation file.')
-    parser.add_argument('--template', '-t', dest='template', type=str, required=True,
-                        help='Template file name.')
-    parser.add_argument('input', type=str, nargs='+',
-                        help='Input file name.')
-
-    args = parser.parse_args(argv[1:])
-
-    ranges = {}
-    with open(args.ranges, 'rb') as f:
-        data = open(args.ranges, 'rb').read()
-        ranges = yaml.safe_load(data)['ranges']
-
-    controls = []
-    for input in args.input:
-        with open(input, 'rb') as f:
-            data = f.read()
-            vendor = yaml.safe_load(data)['vendor']
-            ctrls = yaml.safe_load(data)['controls']
-            controls = controls + [Control(*ctrl.popitem(), vendor) for ctrl in ctrls]
-
-    if args.template.endswith('.cpp.in'):
-        data = generate_cpp(controls)
-    elif args.template.endswith('.h.in'):
-        data = generate_h(controls, args.mode, ranges)
-    else:
-        raise RuntimeError('Unknown template type')
-
-    data = fill_template(args.template, data)
-
-    if args.output:
-        output = open(args.output, 'wb')
-        output.write(data.encode('utf-8'))
-        output.close()
-    else:
-        sys.stdout.write(data)
-
-    return 0
-
-
-if __name__ == '__main__':
-    sys.exit(main(sys.argv))
diff --git a/utils/gen-debug-controls.py b/utils/gen-debug-controls.py
new file mode 100755
index 00000000..02585073
--- /dev/null
+++ b/utils/gen-debug-controls.py
@@ -0,0 +1,162 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2024, Google Inc.
+#
+# Author: Stefan Klug <stefan.klug@ideasonboard.com>
+#
+# This script looks for occurrences of the debug metadata controls in the source
+# tree and updates src/libcamera/control_ids_debug.yaml accordingly. It is meant
+# to be used during development to ease updating of the yaml file while
+# debugging.
+
+import argparse
+import logging
+import os
+import re
+import sys
+from dataclasses import dataclass
+from pathlib import Path
+
+logger = logging.getLogger(__name__)
+logging.basicConfig(level=logging.INFO, format='%(levelname)s: %(message)s')
+
+try:
+    import ruamel.yaml as ruyaml
+except:
+    logger.error(
+        f'Failed to import ruamel.yaml. Please install the ruamel.yaml package.')
+    sys.exit(1)
+
+@dataclass
+class FoundMatch:
+    file: os.PathLike
+    whole_match: str
+    line: int
+    type: str
+    name: str
+    size: str = None
+
+
+def get_control_name(control):
+    k = list(control.keys())
+    if len(k) != 1:
+        raise Exception(f"Can't handle control entry with {len(k)} keys")
+    return k[0]
+
+
+def find_debug_controls(dir):
+    extensions = ['.cpp', '.h']
+    files = [p for p in dir.rglob('*') if p.suffix in extensions]
+
+    # The following regex was tested on
+    # set<Span<type>>( controls::debug::something , static_cast<type>(var) )
+    # set<>( controls::debug::something , static_cast<type>(var) )
+    # set( controls::debug::something , static_cast<type> (var) )
+    exp = re.compile(r'set'  # set function
+                     r'(?:\<((?:[^)(])*)\>)?'  # followed by a optional template param
+                     r'\(\s*controls::debug::(\w+)\s*,'  # referencing a debug control
+                     )
+    matches = []
+    for p in files:
+        with p.open('r') as f:
+            for idx, line in enumerate(f):
+                match = exp.search(line)
+                if match:
+                    m = FoundMatch(file=p, line=idx, type=match.group(1),
+                                   name=match.group(2), whole_match=match.group(0))
+                    if m.type is not None and m.type.startswith('Span'):
+                        # Simple span type detection treating the last word
+                        # inside <> as type.
+                        r = re.match(r'Span<(?:.*\s+)(.*)>', m.type)
+                        m.type = r.group(1)
+                        m.size = '[n]'
+                    matches.append(m)
+    return matches
+
+
+def main(argv):
+    parser = argparse.ArgumentParser(
+        description='Automatically updates control_ids_debug.yaml')
+    parser.parse_args(argv[1:])
+
+    yaml = ruyaml.YAML()
+    root_dir = Path(__file__).resolve().parent.parent
+    ctrl_file = root_dir.joinpath('src/libcamera/control_ids_debug.yaml')
+
+    matches = find_debug_controls(root_dir.joinpath('src'))
+
+    doc = yaml.load(ctrl_file)
+
+    controls = doc['controls']
+
+    # Create a map of names in the existing yaml for easier updating.
+    controls_map = {}
+    for control in controls:
+        for k, v in control.items():
+            controls_map[k] = v
+
+    obsolete_names = list(controls_map.keys())
+
+    for m in matches:
+        if not m.type:
+            p = m.file.relative_to(Path.cwd(), walk_up=True)
+            logger.warning(
+                f'{p}:{m.line + 1}: Failed to deduce type from {m.whole_match} ... skipping')
+            continue
+
+        p = m.file.relative_to(root_dir)
+        desc = {'type': m.type,
+                'description': f'Debug control {m.name} found in {p}:{m.line}'}
+        if m.size is not None:
+            desc['size'] = m.size
+
+        if m.name in controls_map:
+            # Can't use == for modified check because of the special yaml dicts.
+            update_needed = False
+            if list(controls_map[m.name].keys()) != list(desc.keys()):
+                update_needed = True
+            else:
+                for k, v in controls_map[m.name].items():
+                    if v != desc[k]:
+                        update_needed = True
+                        break
+
+            if update_needed:
+                logger.info(f"Update control '{m.name}'")
+                controls_map[m.name].clear()
+                controls_map[m.name].update(desc)
+
+            obsolete_names.remove(m.name)
+        else:
+            logger.info(f"Add control '{m.name}'")
+            insert_before = len(controls)
+            for idx, control in enumerate(controls):
+                if get_control_name(control).lower() > m.name.lower():
+                    insert_before = idx
+                    break
+            controls.insert(insert_before, {m.name: desc})
+
+    # Remove elements from controls without recreating the list (to keep
+    # comments etc.).
+    idx = 0
+    while idx < len(controls):
+        name = get_control_name(controls[idx])
+        if name in obsolete_names:
+            logger.info(f"Remove control '{name}'")
+            controls.pop(idx)
+        else:
+            idx += 1
+
+    with ctrl_file.open('w') as f:
+        # Ruyaml looses the header.
+        f.write(("# SPDX-License-Identifier: LGPL-2.1-or-later\n"
+                 "#\n"
+                 "# This file was generated by utils/gen-debug-controls.py\n"
+                 "#\n"))
+        yaml.dump(doc, f)
+
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))
diff --git a/utils/gen-version.sh b/utils/gen-version.sh
index e1f7ca7b..1b818e9e 100755
--- a/utils/gen-version.sh
+++ b/utils/gen-version.sh
@@ -42,7 +42,7 @@ if [ -z "$build_dir" ] || (echo "$build_dir" | grep -q "$src_dir")
 then
 	git update-index --refresh > /dev/null 2>&1
 fi
-git diff-index --quiet HEAD || version="$version-dirty ($(date --iso-8601=seconds))"
+git diff-index --quiet HEAD || version="$version-dirty ($(date +%Y-%m-%dT%H:%M:%S%Z))"
 
 # If a project version is provided, use it to replace the version number.
 if [ -n "$project_version" ]
diff --git a/utils/hooks/pre-push b/utils/hooks/pre-push
index 9918b286..68dcbd0c 100755
--- a/utils/hooks/pre-push
+++ b/utils/hooks/pre-push
@@ -68,7 +68,7 @@ do
 		fi
 
 		# 2. The commit message shall have Signed-off-by lines
-		# corresponding the committer and the author.
+		# corresponding the committer, author, and all co-developers.
 		committer=$(echo "$msg" | grep '^committer ' | head -1 | \
 				cut -d ' ' -f 2- | rev | cut -d ' ' -f 3- | rev)
 		if ! echo -E "$msg" | grep -F -q "Signed-off-by: ${committer}"
@@ -85,6 +85,15 @@ do
 			errors=$((errors+1))
 		fi
 
+		while read -r codev
+		do
+			if ! echo -E "$msg" | grep -F -q "Signed-off-by: ${codev}"
+			then
+				echo >&2 "Missing co-developer '${codev}' Signed-off-by in commit $commit"
+				errors=$((errors+1))
+			fi
+		done < <(echo "$msg" | grep '^Co-developed-by: ' | cut -d ' ' -f 2-)
+
 		# 3. A Reviewed-by or Acked-by is required.
 		if ! echo -E "$msg" | grep -q '^\(Reviewed\|Acked\)-by: '
 		then
diff --git a/utils/meson.build b/utils/meson.build
index 8e28ada7..95d657ac 100644
--- a/utils/meson.build
+++ b/utils/meson.build
@@ -1,15 +1,7 @@
 # SPDX-License-Identifier: CC0-1.0
 
-subdir('ipc')
+subdir('codegen')
 subdir('ipu3')
-subdir('tracepoints')
-
-## Code generation
-py_modules += ['yaml']
-gen_controls = files('gen-controls.py')
-gen_formats = files('gen-formats.py')
-gen_header = files('gen-header.sh')
 
 ## Module signing
 gen_ipa_priv_key = files('gen-ipa-priv-key.sh')
-gen_ipa_pub_key = files('gen-ipa-pub-key.py')
diff --git a/utils/tracepoints/meson.build b/utils/tracepoints/meson.build
deleted file mode 100644
index 807230fc..00000000
--- a/utils/tracepoints/meson.build
+++ /dev/null
@@ -1,5 +0,0 @@
-# SPDX-License-Identifier: CC0-1.0
-
-py_modules += ['jinja2']
-
-gen_tracepoints_header = find_program('./gen-tp-header.py')
diff --git a/utils/tuning/README.rst b/utils/tuning/README.rst
index ef3e6ad7..89a1d61e 100644
--- a/utils/tuning/README.rst
+++ b/utils/tuning/README.rst
@@ -1,11 +1,20 @@
 .. SPDX-License-Identifier: CC-BY-SA-4.0
 
-.. TODO: Write an overview of libtuning
+libcamera tuning tools
+======================
 
-Dependencies
-------------
+.. Note:: The tuning tools are still very much work in progress. If in doubt,
+    please ask on the mailing list.
+
+.. todo::
+    Write documentation
+
+Installation of dependencies
+----------------------------
+
+::
+    # Using a venv
+    python3 -m venv venv
+    . ./venv/bin/activate
+    pip3 install -r requirements.txt
 
-- numpy
-- opencv-python
-- py3exiv2
-- rawpy
diff --git a/utils/tuning/config-example.yaml b/utils/tuning/config-example.yaml
new file mode 100644
index 00000000..1b7f52cd
--- /dev/null
+++ b/utils/tuning/config-example.yaml
@@ -0,0 +1,12 @@
+general:
+  disable: []
+  plot: []
+  alsc:
+    do_alsc_colour: 1
+    luminance_strength: 0.5
+  awb:
+    greyworld: 0
+  macbeth:
+    small: 1
+    show: 0
+#  blacklevel: 32
\ No newline at end of file
diff --git a/utils/tuning/libtuning/ctt_awb.py b/utils/tuning/libtuning/ctt_awb.py
new file mode 100644
index 00000000..abf22321
--- /dev/null
+++ b/utils/tuning/libtuning/ctt_awb.py
@@ -0,0 +1,378 @@
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (C) 2019, Raspberry Pi Ltd
+#
+# camera tuning tool for AWB
+
+import matplotlib.pyplot as plt
+from bisect import bisect_left
+from scipy.optimize import fmin
+import numpy as np
+
+from .image import Image
+
+
+"""
+obtain piecewise linear approximation for colour curve
+"""
+def awb(Cam, cal_cr_list, cal_cb_list, plot):
+    imgs = Cam.imgs
+    """
+    condense alsc calibration tables into one dictionary
+    """
+    if cal_cr_list is None:
+        colour_cals = None
+    else:
+        colour_cals = {}
+        for cr, cb in zip(cal_cr_list, cal_cb_list):
+            cr_tab = cr['table']
+            cb_tab = cb['table']
+            """
+            normalise tables so min value is 1
+            """
+            cr_tab = cr_tab/np.min(cr_tab)
+            cb_tab = cb_tab/np.min(cb_tab)
+            colour_cals[cr['ct']] = [cr_tab, cb_tab]
+    """
+    obtain data from greyscale macbeth patches
+    """
+    rb_raw = []
+    rbs_hat = []
+    for Img in imgs:
+        Cam.log += '\nProcessing '+Img.name
+        """
+        get greyscale patches with alsc applied if alsc enabled.
+        Note: if alsc is disabled then colour_cals will be set to None and the
+        function will just return the greyscale patches
+        """
+        r_patchs, b_patchs, g_patchs = get_alsc_patches(Img, colour_cals)
+        """
+        calculate ratio of r, b to g
+        """
+        r_g = np.mean(r_patchs/g_patchs)
+        b_g = np.mean(b_patchs/g_patchs)
+        Cam.log += '\n       r : {:.4f}       b : {:.4f}'.format(r_g, b_g)
+        """
+        The curve tends to be better behaved in so-called hatspace.
+        R, B, G represent the individual channels. The colour curve is plotted in
+        r, b space, where:
+            r = R/G
+            b = B/G
+        This will be referred to as dehatspace... (sorry)
+        Hatspace is defined as:
+            r_hat = R/(R+B+G)
+            b_hat = B/(R+B+G)
+        To convert from dehatspace to hastpace (hat operation):
+            r_hat = r/(1+r+b)
+            b_hat = b/(1+r+b)
+        To convert from hatspace to dehatspace (dehat operation):
+            r = r_hat/(1-r_hat-b_hat)
+            b = b_hat/(1-r_hat-b_hat)
+        Proof is left as an excercise to the reader...
+        Throughout the code, r and b are sometimes referred to as r_g and b_g
+        as a reminder that they are ratios
+        """
+        r_g_hat = r_g/(1+r_g+b_g)
+        b_g_hat = b_g/(1+r_g+b_g)
+        Cam.log += '\n   r_hat : {:.4f}   b_hat : {:.4f}'.format(r_g_hat, b_g_hat)
+        rbs_hat.append((r_g_hat, b_g_hat, Img.col))
+        rb_raw.append((r_g, b_g))
+        Cam.log += '\n'
+
+    Cam.log += '\nFinished processing images'
+    """
+    sort all lits simultaneously by r_hat
+    """
+    rbs_zip = list(zip(rbs_hat, rb_raw))
+    rbs_zip.sort(key=lambda x: x[0][0])
+    rbs_hat, rb_raw = list(zip(*rbs_zip))
+    """
+    unzip tuples ready for processing
+    """
+    rbs_hat = list(zip(*rbs_hat))
+    rb_raw = list(zip(*rb_raw))
+    """
+    fit quadratic fit to r_g hat and b_g_hat
+    """
+    a, b, c = np.polyfit(rbs_hat[0], rbs_hat[1], 2)
+    Cam.log += '\nFit quadratic curve in hatspace'
+    """
+    the algorithm now approximates the shortest distance from each point to the
+    curve in dehatspace. Since the fit is done in hatspace, it is easier to
+    find the actual shortest distance in hatspace and use the projection back
+    into dehatspace as an overestimate.
+    The distance will be used for two things:
+        1) In the case that colour temperature does not strictly decrease with
+        increasing r/g, the closest point to the line will be chosen out of an
+        increasing pair of colours.
+
+        2) To calculate transverse negative an dpositive, the maximum positive
+        and negative distance from the line are chosen. This benefits from the
+        overestimate as the transverse pos/neg are upper bound values.
+    """
+    """
+    define fit function
+    """
+    def f(x):
+        return a*x**2 + b*x + c
+    """
+    iterate over points (R, B are x and y coordinates of points) and calculate
+    distance to line in dehatspace
+    """
+    dists = []
+    for i, (R, B) in enumerate(zip(rbs_hat[0], rbs_hat[1])):
+        """
+        define function to minimise as square distance between datapoint and
+        point on curve. Squaring is monotonic so minimising radius squared is
+        equivalent to minimising radius
+        """
+        def f_min(x):
+            y = f(x)
+            return((x-R)**2+(y-B)**2)
+        """
+        perform optimisation with scipy.optmisie.fmin
+        """
+        x_hat = fmin(f_min, R, disp=0)[0]
+        y_hat = f(x_hat)
+        """
+        dehat
+        """
+        x = x_hat/(1-x_hat-y_hat)
+        y = y_hat/(1-x_hat-y_hat)
+        rr = R/(1-R-B)
+        bb = B/(1-R-B)
+        """
+        calculate euclidean distance in dehatspace
+        """
+        dist = ((x-rr)**2+(y-bb)**2)**0.5
+        """
+        return negative if point is below the fit curve
+        """
+        if (x+y) > (rr+bb):
+            dist *= -1
+        dists.append(dist)
+    Cam.log += '\nFound closest point on fit line to each point in dehatspace'
+    """
+    calculate wiggle factors in awb. 10% added since this is an upper bound
+    """
+    transverse_neg = - np.min(dists) * 1.1
+    transverse_pos = np.max(dists) * 1.1
+    Cam.log += '\nTransverse pos : {:.5f}'.format(transverse_pos)
+    Cam.log += '\nTransverse neg : {:.5f}'.format(transverse_neg)
+    """
+    set minimum transverse wiggles to 0.1 .
+    Wiggle factors dictate how far off of the curve the algorithm searches. 0.1
+    is a suitable minimum that gives better results for lighting conditions not
+    within calibration dataset. Anything less will generalise poorly.
+    """
+    if transverse_pos < 0.01:
+        transverse_pos = 0.01
+        Cam.log += '\nForced transverse pos to 0.01'
+    if transverse_neg < 0.01:
+        transverse_neg = 0.01
+        Cam.log += '\nForced transverse neg to 0.01'
+
+    """
+    generate new b_hat values at each r_hat according to fit
+    """
+    r_hat_fit = np.array(rbs_hat[0])
+    b_hat_fit = a*r_hat_fit**2 + b*r_hat_fit + c
+    """
+    transform from hatspace to dehatspace
+    """
+    r_fit = r_hat_fit/(1-r_hat_fit-b_hat_fit)
+    b_fit = b_hat_fit/(1-r_hat_fit-b_hat_fit)
+    c_fit = np.round(rbs_hat[2], 0)
+    """
+    round to 4dp
+    """
+    r_fit = np.where((1000*r_fit) % 1 <= 0.05, r_fit+0.0001, r_fit)
+    r_fit = np.where((1000*r_fit) % 1 >= 0.95, r_fit-0.0001, r_fit)
+    b_fit = np.where((1000*b_fit) % 1 <= 0.05, b_fit+0.0001, b_fit)
+    b_fit = np.where((1000*b_fit) % 1 >= 0.95, b_fit-0.0001, b_fit)
+    r_fit = np.round(r_fit, 4)
+    b_fit = np.round(b_fit, 4)
+    """
+    The following code ensures that colour temperature decreases with
+    increasing r/g
+    """
+    """
+    iterate backwards over list for easier indexing
+    """
+    i = len(c_fit) - 1
+    while i > 0:
+        if c_fit[i] > c_fit[i-1]:
+            Cam.log += '\nColour temperature increase found\n'
+            Cam.log += '{} K at r = {} to '.format(c_fit[i-1], r_fit[i-1])
+            Cam.log += '{} K at r = {}'.format(c_fit[i], r_fit[i])
+            """
+            if colour temperature increases then discard point furthest from
+            the transformed fit (dehatspace)
+            """
+            error_1 = abs(dists[i-1])
+            error_2 = abs(dists[i])
+            Cam.log += '\nDistances from fit:\n'
+            Cam.log += '{} K : {:.5f} , '.format(c_fit[i], error_1)
+            Cam.log += '{} K : {:.5f}'.format(c_fit[i-1], error_2)
+            """
+            find bad index
+            note that in python false = 0 and true = 1
+            """
+            bad = i - (error_1 < error_2)
+            Cam.log += '\nPoint at {} K deleted as '.format(c_fit[bad])
+            Cam.log += 'it is furthest from fit'
+            """
+            delete bad point
+            """
+            r_fit = np.delete(r_fit, bad)
+            b_fit = np.delete(b_fit, bad)
+            c_fit = np.delete(c_fit, bad).astype(np.uint16)
+        """
+        note that if a point has been discarded then the length has decreased
+        by one, meaning that decreasing the index by one will reassess the kept
+        point against the next point. It is therefore possible, in theory, for
+        two adjacent points to be discarded, although probably rare
+        """
+        i -= 1
+
+    """
+    return formatted ct curve, ordered by increasing colour temperature
+    """
+    ct_curve = list(np.array(list(zip(b_fit, r_fit, c_fit))).flatten())[::-1]
+    Cam.log += '\nFinal CT curve:'
+    for i in range(len(ct_curve)//3):
+        j = 3*i
+        Cam.log += '\n  ct: {}  '.format(ct_curve[j])
+        Cam.log += '  r: {}  '.format(ct_curve[j+1])
+        Cam.log += '  b: {}  '.format(ct_curve[j+2])
+
+    """
+    plotting code for debug
+    """
+    if plot:
+        x = np.linspace(np.min(rbs_hat[0]), np.max(rbs_hat[0]), 100)
+        y = a*x**2 + b*x + c
+        plt.subplot(2, 1, 1)
+        plt.title('hatspace')
+        plt.plot(rbs_hat[0], rbs_hat[1], ls='--', color='blue')
+        plt.plot(x, y, color='green', ls='-')
+        plt.scatter(rbs_hat[0], rbs_hat[1], color='red')
+        for i, ct in enumerate(rbs_hat[2]):
+            plt.annotate(str(ct), (rbs_hat[0][i], rbs_hat[1][i]))
+        plt.xlabel('$\\hat{r}$')
+        plt.ylabel('$\\hat{b}$')
+        """
+        optional set axes equal to shortest distance so line really does
+        looks perpendicular and everybody is happy
+        """
+        # ax = plt.gca()
+        # ax.set_aspect('equal')
+        plt.grid()
+        plt.subplot(2, 1, 2)
+        plt.title('dehatspace - indoors?')
+        plt.plot(r_fit, b_fit, color='blue')
+        plt.scatter(rb_raw[0], rb_raw[1], color='green')
+        plt.scatter(r_fit, b_fit, color='red')
+        for i, ct in enumerate(c_fit):
+            plt.annotate(str(ct), (r_fit[i], b_fit[i]))
+        plt.xlabel('$r$')
+        plt.ylabel('$b$')
+        """
+        optional set axes equal to shortest distance so line really does
+        looks perpendicular and everybody is happy
+        """
+        # ax = plt.gca()
+        # ax.set_aspect('equal')
+        plt.subplots_adjust(hspace=0.5)
+        plt.grid()
+        plt.show()
+    """
+    end of plotting code
+    """
+    return(ct_curve, np.round(transverse_pos, 5), np.round(transverse_neg, 5))
+
+
+"""
+obtain greyscale patches and perform alsc colour correction
+"""
+def get_alsc_patches(Img, colour_cals, grey=True):
+    """
+    get patch centre coordinates, image colour and the actual
+    patches for each channel, remembering to subtract blacklevel
+    If grey then only greyscale patches considered
+    """
+    if grey:
+        cen_coords = Img.cen_coords[3::4]
+        col = Img.col
+        patches = [np.array(Img.patches[i]) for i in Img.order]
+        r_patchs = patches[0][3::4] - Img.blacklevel_16
+        b_patchs = patches[3][3::4] - Img.blacklevel_16
+        """
+        note two green channels are averages
+        """
+        g_patchs = (patches[1][3::4]+patches[2][3::4])/2 - Img.blacklevel_16
+    else:
+        cen_coords = Img.cen_coords
+        col = Img.color
+        patches = [np.array(Img.patches[i]) for i in Img.order]
+        r_patchs = patches[0] - Img.blacklevel_16
+        b_patchs = patches[3] - Img.blacklevel_16
+        g_patchs = (patches[1]+patches[2])/2 - Img.blacklevel_16
+
+    if colour_cals is None:
+        return r_patchs, b_patchs, g_patchs
+    """
+    find where image colour fits in alsc colour calibration tables
+    """
+    cts = list(colour_cals.keys())
+    pos = bisect_left(cts, col)
+    """
+    if img colour is below minimum or above maximum alsc calibration colour, simply
+    pick extreme closest to img colour
+    """
+    if pos % len(cts) == 0:
+        """
+        this works because -0 = 0 = first and -1 = last index
+        """
+        col_tabs = np.array(colour_cals[cts[-pos//len(cts)]])
+        """
+    else, perform linear interpolation between existing alsc colour
+    calibration tables
+    """
+    else:
+        bef = cts[pos-1]
+        aft = cts[pos]
+        da = col-bef
+        db = aft-col
+        bef_tabs = np.array(colour_cals[bef])
+        aft_tabs = np.array(colour_cals[aft])
+        col_tabs = (bef_tabs*db + aft_tabs*da)/(da+db)
+    col_tabs = np.reshape(col_tabs, (2, 12, 16))
+    """
+    calculate dx, dy used to calculate alsc table
+    """
+    w, h = Img.w/2, Img.h/2
+    dx, dy = int(-(-(w-1)//16)), int(-(-(h-1)//12))
+    """
+    make list of pairs of gains for each patch by selecting the correct value
+    in alsc colour calibration table
+    """
+    patch_gains = []
+    for cen in cen_coords:
+        x, y = cen[0]//dx, cen[1]//dy
+        # We could probably do with some better spatial interpolation here?
+        col_gains = (col_tabs[0][y][x], col_tabs[1][y][x])
+        patch_gains.append(col_gains)
+
+    """
+    multiply the r and b channels in each patch by the respective gain, finally
+    performing the alsc colour correction
+    """
+    for i, gains in enumerate(patch_gains):
+        r_patchs[i] = r_patchs[i] * gains[0]
+        b_patchs[i] = b_patchs[i] * gains[1]
+
+    """
+    return greyscale patches, g channel and correct r, b channels
+    """
+    return r_patchs, b_patchs, g_patchs
diff --git a/utils/tuning/libtuning/ctt_ccm.py b/utils/tuning/libtuning/ctt_ccm.py
new file mode 100644
index 00000000..2e87a667
--- /dev/null
+++ b/utils/tuning/libtuning/ctt_ccm.py
@@ -0,0 +1,408 @@
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (C) 2019, Raspberry Pi Ltd
+#
+# camera tuning tool for CCM (colour correction matrix)
+
+import logging
+
+import numpy as np
+from scipy.optimize import minimize
+
+from . import ctt_colors as colors
+from .image import Image
+from .ctt_awb import get_alsc_patches
+from .utils import visualise_macbeth_chart
+
+logger = logging.getLogger(__name__)
+
+"""
+takes 8-bit macbeth chart values, degammas and returns 16 bit
+"""
+
+'''
+This program has many options from which to derive the color matrix from.
+The first is average. This minimises the average delta E across all patches of
+the macbeth chart. Testing across all cameras yeilded this as the most color
+accurate and vivid. Other options are avalible however.
+Maximum minimises the maximum Delta E of the patches. It iterates through till
+a minimum maximum is found (so that there is
+not one patch that deviates wildly.)
+This yields generally good results but overall the colors are less accurate
+Have a fiddle with maximum and see what you think.
+The final option allows you to select the patches for which to average across.
+This means that you can bias certain patches, for instance if you want the
+reds to be more accurate.
+'''
+
+matrix_selection_types = ["average", "maximum", "patches"]
+typenum = 0  # select from array above, 0 = average, 1 = maximum, 2 = patches
+test_patches = [1, 2, 5, 8, 9, 12, 14]
+
+'''
+Enter patches to test for. Can also be entered twice if you
+would like twice as much bias on one patch.
+'''
+
+
+def degamma(x):
+    x = x / ((2 ** 8) - 1)  # takes 255 and scales it down to one
+    x = np.where(x < 0.04045, x / 12.92, ((x + 0.055) / 1.055) ** 2.4)
+    x = x * ((2 ** 16) - 1)  # takes one and scales up to 65535, 16 bit color
+    return x
+
+
+def gamma(x):
+    # Take 3 long array of color values and gamma them
+    return [((colour / 255) ** (1 / 2.4) * 1.055 - 0.055) * 255 for colour in x]
+
+
+"""
+FInds colour correction matrices for list of images
+"""
+
+
+def ccm(imgs, cal_cr_list, cal_cb_list):
+    global matrix_selection_types, typenum
+    """
+    standard macbeth chart colour values
+    """
+    m_rgb = np.array([  # these are in RGB
+        [116, 81, 67],    # dark skin
+        [199, 147, 129],  # light skin
+        [91, 122, 156],   # blue sky
+        [90, 108, 64],    # foliage
+        [130, 128, 176],  # blue flower
+        [92, 190, 172],   # bluish green
+        [224, 124, 47],   # orange
+        [68, 91, 170],    # purplish blue
+        [198, 82, 97],    # moderate red
+        [94, 58, 106],    # purple
+        [159, 189, 63],   # yellow green
+        [230, 162, 39],   # orange yellow
+        [35, 63, 147],    # blue
+        [67, 149, 74],    # green
+        [180, 49, 57],    # red
+        [238, 198, 20],   # yellow
+        [193, 84, 151],   # magenta
+        [0, 136, 170],    # cyan (goes out of gamut)
+        [245, 245, 243],  # white 9.5
+        [200, 202, 202],  # neutral 8
+        [161, 163, 163],  # neutral 6.5
+        [121, 121, 122],  # neutral 5
+        [82, 84, 86],     # neutral 3.5
+        [49, 49, 51]      # black 2
+    ])
+    """
+    convert reference colours from srgb to rgb
+    """
+    m_srgb = degamma(m_rgb)  # now in 16 bit color.
+
+    # Produce array of LAB values for ideal color chart
+    m_lab = [colors.RGB_to_LAB(color / 256) for color in m_srgb]
+
+    """
+    reorder reference values to match how patches are ordered
+    """
+    m_srgb = np.array([m_srgb[i::6] for i in range(6)]).reshape((24, 3))
+    m_lab = np.array([m_lab[i::6] for i in range(6)]).reshape((24, 3))
+    m_rgb = np.array([m_rgb[i::6] for i in range(6)]).reshape((24, 3))
+    """
+    reformat alsc correction tables or set colour_cals to None if alsc is
+    deactivated
+    """
+    if cal_cr_list is None:
+        colour_cals = None
+    else:
+        colour_cals = {}
+        for cr, cb in zip(cal_cr_list, cal_cb_list):
+            cr_tab = cr['table']
+            cb_tab = cb['table']
+            """
+            normalise tables so min value is 1
+            """
+            cr_tab = cr_tab / np.min(cr_tab)
+            cb_tab = cb_tab / np.min(cb_tab)
+            colour_cals[cr['ct']] = [cr_tab, cb_tab]
+
+    """
+    for each image, perform awb and alsc corrections.
+    Then calculate the colour correction matrix for that image, recording the
+    ccm and the colour tempertaure.
+    """
+    ccm_tab = {}
+    for Img in imgs:
+        logger.info('Processing image: ' + Img.name)
+        """
+        get macbeth patches with alsc applied if alsc enabled.
+        Note: if alsc is disabled then colour_cals will be set to None and no
+        the function will simply return the macbeth patches
+        """
+        r, b, g = get_alsc_patches(Img, colour_cals, grey=False)
+        # 256 values for each patch of sRGB values
+
+        """
+        do awb
+        Note: awb is done by measuring the macbeth chart in the image, rather
+        than from the awb calibration. This is done so the awb will be perfect
+        and the ccm matrices will be more accurate.
+        """
+        r_greys, b_greys, g_greys = r[3::4], b[3::4], g[3::4]
+        r_g = np.mean(r_greys / g_greys)
+        b_g = np.mean(b_greys / g_greys)
+        r = r / r_g
+        b = b / b_g
+        """
+        normalise brightness wrt reference macbeth colours and then average
+        each channel for each patch
+        """
+        gain = np.mean(m_srgb) / np.mean((r, g, b))
+        logger.info(f'Gain with respect to standard colours: {gain:.3f}')
+        r = np.mean(gain * r, axis=1)
+        b = np.mean(gain * b, axis=1)
+        g = np.mean(gain * g, axis=1)
+        """
+        calculate ccm matrix
+        """
+        # ==== All of below should in sRGB ===##
+        sumde = 0
+        ccm = do_ccm(r, g, b, m_srgb)
+        # This is the initial guess that our optimisation code works with.
+        original_ccm = ccm
+        r1 = ccm[0]
+        r2 = ccm[1]
+        g1 = ccm[3]
+        g2 = ccm[4]
+        b1 = ccm[6]
+        b2 = ccm[7]
+        '''
+        COLOR MATRIX LOOKS AS BELOW
+        R1 R2 R3   Rval     Outr
+        G1 G2 G3  *  Gval  =  G
+        B1 B2 B3   Bval     B
+        Will be optimising 6 elements and working out the third element using 1-r1-r2 = r3
+        '''
+
+        x0 = [r1, r2, g1, g2, b1, b2]
+        '''
+        We use our old CCM as the initial guess for the program to find the
+        optimised matrix
+        '''
+        result = minimize(guess, x0, args=(r, g, b, m_lab), tol=0.01)
+        '''
+        This produces a color matrix which has the lowest delta E possible,
+        based off the input data. Note it is impossible for this to reach
+        zero since the input data is imperfect
+        '''
+
+        [r1, r2, g1, g2, b1, b2] = result.x
+        # The new, optimised color correction matrix values
+        # This is the optimised Color Matrix (preserving greys by summing rows up to 1)
+        optimised_ccm = [r1, r2, (1 - r1 - r2), g1, g2, (1 - g1 - g2), b1, b2, (1 - b1 - b2)]
+
+        logger.info(f'Optimized Matrix: {np.round(optimised_ccm, 4)}')
+        logger.info(f'Old Matrix:       {np.round(ccm, 4)}')
+
+        formatted_ccm = np.array(original_ccm).reshape((3, 3))
+
+        '''
+        below is a whole load of code that then applies the latest color
+        matrix, and returns LAB values for color. This can then be used
+        to calculate the final delta E
+        '''
+        optimised_ccm_rgb = []  # Original Color Corrected Matrix RGB / LAB
+        optimised_ccm_lab = []
+
+        formatted_optimised_ccm = np.array(optimised_ccm).reshape((3, 3))
+        after_gamma_rgb = []
+        after_gamma_lab = []
+
+        for RGB in zip(r, g, b):
+            ccm_applied_rgb = np.dot(formatted_ccm, (np.array(RGB) / 256))
+            optimised_ccm_rgb.append(gamma(ccm_applied_rgb))
+            optimised_ccm_lab.append(colors.RGB_to_LAB(ccm_applied_rgb))
+
+            optimised_ccm_applied_rgb = np.dot(formatted_optimised_ccm, np.array(RGB) / 256)
+            after_gamma_rgb.append(gamma(optimised_ccm_applied_rgb))
+            after_gamma_lab.append(colors.RGB_to_LAB(optimised_ccm_applied_rgb))
+        '''
+        Gamma After RGB / LAB - not used in calculations, only used for visualisation
+        We now want to spit out some data that shows
+        how the optimisation has improved the color matrices
+        '''
+        logger.info("Here are the Improvements")
+
+        # CALCULATE WORST CASE delta e
+        old_worst_delta_e = 0
+        before_average = transform_and_evaluate(formatted_ccm, r, g, b, m_lab)
+        new_worst_delta_e = 0
+        after_average = transform_and_evaluate(formatted_optimised_ccm, r, g, b, m_lab)
+        for i in range(24):
+            old_delta_e = deltae(optimised_ccm_lab[i], m_lab[i])  # Current Old Delta E
+            new_delta_e = deltae(after_gamma_lab[i], m_lab[i])  # Current New Delta E
+            if old_delta_e > old_worst_delta_e:
+                old_worst_delta_e = old_delta_e
+            if new_delta_e > new_worst_delta_e:
+                new_worst_delta_e = new_delta_e
+
+        logger.info(f'delta E optimized: average: {after_average:.2f}  max:{new_worst_delta_e:.2f}')
+        logger.info(f'delta E old:       average: {before_average:.2f}  max:{old_worst_delta_e:.2f}')
+
+        visualise_macbeth_chart(m_rgb, optimised_ccm_rgb, after_gamma_rgb, str(Img.color) + str(matrix_selection_types[typenum]))
+        '''
+        The program will also save some visualisations of improvements.
+        Very pretty to look at. Top rectangle is ideal, Left square is
+        before optimisation, right square is after.
+        '''
+
+        """
+        if a ccm has already been calculated for that temperature then don't
+        overwrite but save both. They will then be averaged later on
+        """  # Now going to use optimised color matrix, optimised_ccm
+        if Img.color in ccm_tab.keys():
+            ccm_tab[Img.color].append(optimised_ccm)
+        else:
+            ccm_tab[Img.color] = [optimised_ccm]
+
+    logger.info('Finished processing images')
+    """
+    average any ccms that share a colour temperature
+    """
+    for k, v in ccm_tab.items():
+        tab = np.mean(v, axis=0)
+        tab = np.where((10000 * tab) % 1 <= 0.05, tab + 0.00001, tab)
+        tab = np.where((10000 * tab) % 1 >= 0.95, tab - 0.00001, tab)
+        ccm_tab[k] = list(np.round(tab, 5))
+        logger.info(f'Matrix calculated for colour temperature of {k} K')
+
+    """
+    return all ccms with respective colour temperature in the correct format,
+    sorted by their colour temperature
+    """
+    sorted_ccms = sorted(ccm_tab.items(), key=lambda kv: kv[0])
+    ccms = []
+    for i in sorted_ccms:
+        ccms.append({
+            'ct': i[0],
+            'ccm': i[1]
+        })
+    return ccms
+
+
+def guess(x0, r, g, b, m_lab):       # provides a method of numerical feedback for the optimisation code
+    [r1, r2, g1, g2, b1, b2] = x0
+    ccm = np.array([r1, r2, (1 - r1 - r2),
+                    g1, g2, (1 - g1 - g2),
+                    b1, b2, (1 - b1 - b2)]).reshape((3, 3))  # format the matrix correctly
+    return transform_and_evaluate(ccm, r, g, b, m_lab)
+
+
+def transform_and_evaluate(ccm, r, g, b, m_lab):  # Transforms colors to LAB and applies the correction matrix
+    # create list of matrix changed colors
+    realrgb = []
+    for RGB in zip(r, g, b):
+        rgb_post_ccm = np.dot(ccm, np.array(RGB) / 256)  # This is RGB values after the color correction matrix has been applied
+        realrgb.append(colors.RGB_to_LAB(rgb_post_ccm))
+    # now compare that with m_lab and return numeric result, averaged for each patch
+    return (sumde(realrgb, m_lab) / 24)  # returns an average result of delta E
+
+
+def sumde(listA, listB):
+    global typenum, test_patches
+    sumde = 0
+    maxde = 0
+    patchde = []  # Create array of the delta E values for each patch. useful for optimisation of certain patches
+    for listA_item, listB_item in zip(listA, listB):
+        if maxde < (deltae(listA_item, listB_item)):
+            maxde = deltae(listA_item, listB_item)
+        patchde.append(deltae(listA_item, listB_item))
+        sumde += deltae(listA_item, listB_item)
+    '''
+    The different options specified at the start allow for
+    the maximum to be returned, average or specific patches
+    '''
+    if typenum == 0:
+        return sumde
+    if typenum == 1:
+        return maxde
+    if typenum == 2:
+        output = sum([patchde[test_patch] for test_patch in test_patches])
+        # Selects only certain patches and returns the output for them
+        return output
+
+
+"""
+calculates the ccm for an individual image.
+ccms are calculated in rgb space, and are fit by hand. Although it is a 3x3
+matrix, each row must add up to 1 in order to conserve greyness, simplifying
+calculation.
+The initial CCM is calculated in RGB, and then optimised in LAB color space
+This simplifies the initial calculation but then gets us the accuracy of
+using LAB color space.
+"""
+
+
+def do_ccm(r, g, b, m_srgb):
+    rb = r-b
+    gb = g-b
+    rb_2s = (rb * rb)
+    rb_gbs = (rb * gb)
+    gb_2s = (gb * gb)
+
+    r_rbs = rb * (m_srgb[..., 0] - b)
+    r_gbs = gb * (m_srgb[..., 0] - b)
+    g_rbs = rb * (m_srgb[..., 1] - b)
+    g_gbs = gb * (m_srgb[..., 1] - b)
+    b_rbs = rb * (m_srgb[..., 2] - b)
+    b_gbs = gb * (m_srgb[..., 2] - b)
+
+    """
+    Obtain least squares fit
+    """
+    rb_2 = np.sum(rb_2s)
+    gb_2 = np.sum(gb_2s)
+    rb_gb = np.sum(rb_gbs)
+    r_rb = np.sum(r_rbs)
+    r_gb = np.sum(r_gbs)
+    g_rb = np.sum(g_rbs)
+    g_gb = np.sum(g_gbs)
+    b_rb = np.sum(b_rbs)
+    b_gb = np.sum(b_gbs)
+
+    det = rb_2 * gb_2 - rb_gb * rb_gb
+
+    """
+    Raise error if matrix is singular...
+    This shouldn't really happen with real data but if it does just take new
+    pictures and try again, not much else to be done unfortunately...
+    """
+    if det < 0.001:
+        raise ArithmeticError
+
+    r_a = (gb_2 * r_rb - rb_gb * r_gb) / det
+    r_b = (rb_2 * r_gb - rb_gb * r_rb) / det
+    """
+    Last row can be calculated by knowing the sum must be 1
+    """
+    r_c = 1 - r_a - r_b
+
+    g_a = (gb_2 * g_rb - rb_gb * g_gb) / det
+    g_b = (rb_2 * g_gb - rb_gb * g_rb) / det
+    g_c = 1 - g_a - g_b
+
+    b_a = (gb_2 * b_rb - rb_gb * b_gb) / det
+    b_b = (rb_2 * b_gb - rb_gb * b_rb) / det
+    b_c = 1 - b_a - b_b
+
+    """
+    format ccm
+    """
+    ccm = [r_a, r_b, r_c, g_a, g_b, g_c, b_a, b_b, b_c]
+
+    return ccm
+
+
+def deltae(colorA, colorB):
+    return ((colorA[0] - colorB[0]) ** 2 + (colorA[1] - colorB[1]) ** 2 + (colorA[2] - colorB[2]) ** 2) ** 0.5
+    # return ((colorA[1]-colorB[1]) *  * 2 + (colorA[2]-colorB[2]) *  * 2) *  * 0.5
+    # UNCOMMENT IF YOU WANT TO NEGLECT LUMINANCE FROM CALCULATION OF DELTA E
diff --git a/utils/tuning/libtuning/ctt_colors.py b/utils/tuning/libtuning/ctt_colors.py
new file mode 100644
index 00000000..cb4d236b
--- /dev/null
+++ b/utils/tuning/libtuning/ctt_colors.py
@@ -0,0 +1,30 @@
+# Program to convert from RGB to LAB color space
+def RGB_to_LAB(RGB):  # where RGB is a 1x3 array.   e.g RGB = [100, 255, 230]
+    num = 0
+    XYZ = [0, 0, 0]
+    # converted all the three R, G, B to X, Y, Z
+    X = RGB[0] * 0.4124 + RGB[1] * 0.3576 + RGB[2] * 0.1805
+    Y = RGB[0] * 0.2126 + RGB[1] * 0.7152 + RGB[2] * 0.0722
+    Z = RGB[0] * 0.0193 + RGB[1] * 0.1192 + RGB[2] * 0.9505
+
+    XYZ[0] = X / 255 * 100
+    XYZ[1] = Y / 255 * 100  # XYZ Must be in range 0 -> 100, so scale down from 255
+    XYZ[2] = Z / 255 * 100
+    XYZ[0] = XYZ[0] / 95.047  # ref_X =  95.047   Observer= 2°, Illuminant= D65
+    XYZ[1] = XYZ[1] / 100.0  # ref_Y = 100.000
+    XYZ[2] = XYZ[2] / 108.883  # ref_Z = 108.883
+    num = 0
+    for value in XYZ:
+        if value > 0.008856:
+            value = value ** (0.3333333333333333)
+        else:
+            value = (7.787 * value) + (16 / 116)
+        XYZ[num] = value
+        num = num + 1
+
+    # L, A, B, values calculated below
+    L = (116 * XYZ[1]) - 16
+    a = 500 * (XYZ[0] - XYZ[1])
+    b = 200 * (XYZ[1] - XYZ[2])
+
+    return [L, a, b]
diff --git a/utils/tuning/libtuning/ctt_ransac.py b/utils/tuning/libtuning/ctt_ransac.py
new file mode 100644
index 00000000..01bba302
--- /dev/null
+++ b/utils/tuning/libtuning/ctt_ransac.py
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (C) 2019, Raspberry Pi Ltd
+#
+# camera tuning tool RANSAC selector for Macbeth chart locator
+
+import numpy as np
+
+scale = 2
+
+
+"""
+constructs normalised macbeth chart corners for ransac algorithm
+"""
+def get_square_verts(c_err=0.05, scale=scale):
+    """
+    define macbeth chart corners
+    """
+    b_bord_x, b_bord_y = scale*8.5, scale*13
+    s_bord = 6*scale
+    side = 41*scale
+    x_max = side*6 + 5*s_bord + 2*b_bord_x
+    y_max = side*4 + 3*s_bord + 2*b_bord_y
+    c1 = (0, 0)
+    c2 = (0, y_max)
+    c3 = (x_max, y_max)
+    c4 = (x_max, 0)
+    mac_norm = np.array((c1, c2, c3, c4), np.float32)
+    mac_norm = np.array([mac_norm])
+
+    square_verts = []
+    square_0 = np.array(((0, 0), (0, side),
+                         (side, side), (side, 0)), np.float32)
+    offset_0 = np.array((b_bord_x, b_bord_y), np.float32)
+    c_off = side * c_err
+    offset_cont = np.array(((c_off, c_off), (c_off, -c_off),
+                            (-c_off, -c_off), (-c_off, c_off)), np.float32)
+    square_0 += offset_0
+    square_0 += offset_cont
+    """
+    define macbeth square corners
+    """
+    for i in range(6):
+        shift_i = np.array(((i*side, 0), (i*side, 0),
+                            (i*side, 0), (i*side, 0)), np.float32)
+        shift_bord = np.array(((i*s_bord, 0), (i*s_bord, 0),
+                               (i*s_bord, 0), (i*s_bord, 0)), np.float32)
+        square_i = square_0 + shift_i + shift_bord
+        for j in range(4):
+            shift_j = np.array(((0, j*side), (0, j*side),
+                                (0, j*side), (0, j*side)), np.float32)
+            shift_bord = np.array(((0, j*s_bord),
+                                   (0, j*s_bord), (0, j*s_bord),
+                                   (0, j*s_bord)), np.float32)
+            square_j = square_i + shift_j + shift_bord
+            square_verts.append(square_j)
+    # print('square_verts')
+    # print(square_verts)
+    return np.array(square_verts, np.float32), mac_norm
+
+
+def get_square_centres(c_err=0.05, scale=scale):
+    """
+    define macbeth square centres
+    """
+    verts, mac_norm = get_square_verts(c_err, scale=scale)
+
+    centres = np.mean(verts, axis=1)
+    # print('centres')
+    # print(centres)
+    return np.array(centres, np.float32)
diff --git a/utils/tuning/libtuning/generators/yaml_output.py b/utils/tuning/libtuning/generators/yaml_output.py
index 8f22d386..c490081d 100644
--- a/utils/tuning/libtuning/generators/yaml_output.py
+++ b/utils/tuning/libtuning/generators/yaml_output.py
@@ -9,8 +9,9 @@ from .generator import Generator
 from numbers import Number
 from pathlib import Path
 
-import libtuning.utils as utils
+import logging
 
+logger = logging.getLogger(__name__)
 
 class YamlOutput(Generator):
     def __init__(self):
@@ -106,13 +107,16 @@ class YamlOutput(Generator):
         ]
 
         for module in output_order:
+            if module not in output_dict:
+                continue
+
             out_lines.append(f'  - {module.out_name}:')
 
             if len(output_dict[module]) == 0:
                 continue
 
             if not isinstance(output_dict[module], dict):
-                utils.eprint(f'Error: Output of {module.type} is not a dictionary')
+                logger.error(f'Error: Output of {module.type} is not a dictionary')
                 continue
 
             lines = self._stringify_dict(output_dict[module])
diff --git a/utils/tuning/libtuning/image.py b/utils/tuning/libtuning/image.py
index e2181b11..c8911a0f 100644
--- a/utils/tuning/libtuning/image.py
+++ b/utils/tuning/libtuning/image.py
@@ -13,6 +13,9 @@ import re
 
 import libtuning as lt
 import libtuning.utils as utils
+import logging
+
+logger = logging.getLogger(__name__)
 
 
 class Image:
@@ -21,17 +24,18 @@ class Image:
         self.lsc_only = False
         self.color = -1
         self.lux = -1
+        self.macbeth = None
 
         try:
             self._load_metadata_exif()
         except Exception as e:
-            utils.eprint(f'Failed to load metadata from {self.path}: {e}')
+            logger.error(f'Failed to load metadata from {self.path}: {e}')
             raise e
 
         try:
             self._read_image_dng()
         except Exception as e:
-            utils.eprint(f'Failed to load image data from {self.path}: {e}')
+            logger.error(f'Failed to load image data from {self.path}: {e}')
             raise e
 
     @property
@@ -79,7 +83,7 @@ class Image:
         # is R, then G, then G, then B.
         bayer_case = {
             '0 1 1 2': (lt.Color.R, lt.Color.GR, lt.Color.GB, lt.Color.B),
-            '1 2 0 1': (lt.Color.GB, lt.Color.R, lt.Color.B, lt.Color.GR),
+            '1 2 0 1': (lt.Color.GB, lt.Color.B, lt.Color.R, lt.Color.GR),
             '2 1 1 0': (lt.Color.B, lt.Color.GB, lt.Color.GR, lt.Color.R),
             '1 0 2 1': (lt.Color.GR, lt.Color.R, lt.Color.B, lt.Color.GB)
         }
diff --git a/utils/tuning/libtuning/libtuning.py b/utils/tuning/libtuning/libtuning.py
index 5e22288d..bac57323 100644
--- a/utils/tuning/libtuning/libtuning.py
+++ b/utils/tuning/libtuning/libtuning.py
@@ -5,13 +5,14 @@
 # An infrastructure for camera tuning tools
 
 import argparse
+import logging
 
 import libtuning as lt
 import libtuning.utils as utils
-from libtuning.utils import eprint
 
 from enum import Enum, IntEnum
 
+logger = logging.getLogger(__name__)
 
 class Color(IntEnum):
     R = 0
@@ -94,7 +95,10 @@ class Tuner(object):
         self.output = {}
 
     def add(self, module):
-        self.modules.append(module)
+        if isinstance(module, list):
+            self.modules.extend(module)
+        else:
+            self.modules.append(module)
 
     def set_input_parser(self, parser):
         self.parser = parser
@@ -112,10 +116,10 @@ class Tuner(object):
         for module_type in output_order:
             modules = [module for module in self.modules if module.type == module_type.type]
             if len(modules) > 1:
-                eprint(f'Multiple modules found for module type "{module_type.type}"')
+                logger.error(f'Multiple modules found for module type "{module_type.type}"')
                 return False
             if len(modules) < 1:
-                eprint(f'No module found for module type "{module_type.type}"')
+                logger.error(f'No module found for module type "{module_type.type}"')
                 return False
             self.output_order.append(modules[0])
 
@@ -124,19 +128,19 @@ class Tuner(object):
     # \todo Validate parser and generator at Tuner construction time?
     def _validate_settings(self):
         if self.parser is None:
-            eprint('Missing parser')
+            logger.error('Missing parser')
             return False
 
         if self.generator is None:
-            eprint('Missing generator')
+            logger.error('Missing generator')
             return False
 
         if len(self.modules) == 0:
-            eprint('No modules added')
+            logger.error('No modules added')
             return False
 
         if len(self.output_order) != len(self.modules):
-            eprint('Number of outputs does not match number of modules')
+            logger.error('Number of outputs does not match number of modules')
             return False
 
         return True
@@ -183,7 +187,7 @@ class Tuner(object):
 
         for module in self.modules:
             if not module.validate_config(self.config):
-                eprint(f'Config is invalid for module {module.type}')
+                logger.error(f'Config is invalid for module {module.type}')
                 return -1
 
         has_lsc = any(isinstance(m, lt.modules.lsc.LSC) for m in self.modules)
@@ -192,15 +196,15 @@ class Tuner(object):
 
         images = utils.load_images(args.input, self.config, not has_only_lsc, has_lsc)
         if images is None or len(images) == 0:
-            eprint(f'No images were found, or able to load')
+            logger.error(f'No images were found, or able to load')
             return -1
 
         # Do the tuning
         for module in self.modules:
             out = module.process(self.config, images, self.output)
             if out is None:
-                eprint(f'Module {module.name} failed to process, aborting')
-                break
+                logger.warning(f'Module {module.hr_name} failed to process...')
+                continue
             self.output[module] = out
 
         self.generator.write(args.output, self.output, self.output_order)
diff --git a/utils/tuning/libtuning/macbeth.py b/utils/tuning/libtuning/macbeth.py
index e1182464..4a2006b0 100644
--- a/utils/tuning/libtuning/macbeth.py
+++ b/utils/tuning/libtuning/macbeth.py
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: BSD-2-Clause
 #
 # Copyright (C) 2019, Raspberry Pi Ltd
+# Copyright (C) 2024, Ideas on Board Oy
 #
 # Locate and extract Macbeth charts from images
 # (Copied from: ctt_macbeth_locator.py)
@@ -11,8 +12,18 @@ import cv2
 import os
 from pathlib import Path
 import numpy as np
+import warnings
+import logging
+from sklearn import cluster as cluster
 
-from libtuning.image import Image
+from .ctt_ransac import get_square_verts, get_square_centres
+from .image import Image
+
+logger = logging.getLogger(__name__)
+
+
+class MacbethError(Exception):
+    pass
 
 
 # Reshape image to fixed width without distorting returns image and scale
@@ -369,7 +380,9 @@ def get_macbeth_chart(img, ref_data):
 
     # Catch macbeth errors and continue with code
     except MacbethError as error:
-        eprint(error)
+        # \todo: This happens so many times in a normal run, that it shadows
+        # all the relevant output
+        # logger.warning(error)
         return (0, None, None, False)
 
 
@@ -403,10 +416,15 @@ def find_macbeth(img, mac_config):
     # nothing more is tried as this is a high enough confidence to ensure
     # reliable macbeth square centre placement.
 
+    # Keep a list that will include this and any brightened up versions of
+    # the image for reuse.
+    all_images = [img]
+
     for brightness in [2, 4]:
         if cor >= 0.75:
             break
         img_br = cv2.convertScaleAbs(img, alpha=brightness, beta=0)
+        all_images.append(img_br)
         cor_b, mac_b, coords_b, ret_b = get_macbeth_chart(img_br, ref_data)
         if cor_b > cor:
             cor, mac, coords, ret = cor_b, mac_b, coords_b, ret_b
@@ -456,23 +474,24 @@ def find_macbeth(img, mac_config):
         w_inc = int(w * pair['inc'])
         h_inc = int(h * pair['inc'])
 
-        loop = ((1 - pair['sel']) / pair['inc']) + 1
+        loop = int(((1 - pair['sel']) / pair['inc']) + 1)
         # For each subselection, look for a macbeth chart
-        for i in range(loop):
-            for j in range(loop):
-                w_s, h_s = i * w_inc, j * h_inc
-                img_sel = img[w_s:w_s + w_sel, h_s:h_s + h_sel]
-                cor_ij, mac_ij, coords_ij, ret_ij = get_macbeth_chart(img_sel, ref_data)
-
-                # If the correlation is better than the best then record the
-                # scale and current subselection at which macbeth chart was
-                # found. Also record the coordinates, macbeth chart and message.
-                if cor_ij > cor:
-                    cor = cor_ij
-                    mac, coords, ret = mac_ij, coords_ij, ret_ij
-                    ii, jj = i, j
-                    w_best, h_best = w_inc, h_inc
-                    d_best = index + 1
+        for img_br in all_images:
+            for i in range(loop):
+                for j in range(loop):
+                    w_s, h_s = i * w_inc, j * h_inc
+                    img_sel = img_br[w_s:w_s + w_sel, h_s:h_s + h_sel]
+                    cor_ij, mac_ij, coords_ij, ret_ij = get_macbeth_chart(img_sel, ref_data)
+
+                    # If the correlation is better than the best then record the
+                    # scale and current subselection at which macbeth chart was
+                    # found. Also record the coordinates, macbeth chart and message.
+                    if cor_ij > cor:
+                        cor = cor_ij
+                        mac, coords, ret = mac_ij, coords_ij, ret_ij
+                        ii, jj = i, j
+                        w_best, h_best = w_inc, h_inc
+                        d_best = index + 1
 
     # Transform coordinates from subselection to original image
     if ii != -1:
@@ -486,7 +505,7 @@ def find_macbeth(img, mac_config):
 
     coords_fit = coords
     if cor < 0.75:
-        eprint(f'Warning: Low confidence {cor:.3f} for macbeth chart in {img.path.name}')
+        logger.warning(f'Low confidence {cor:.3f} for macbeth chart')
 
     if show:
         draw_macbeth_results(img, coords_fit)
@@ -499,18 +518,20 @@ def locate_macbeth(image: Image, config: dict):
     av_chan = (np.mean(np.array(image.channels), axis=0) / (2**16))
     av_val = np.mean(av_chan)
     if av_val < image.blacklevel_16 / (2**16) + 1 / 64:
-        eprint(f'Image {image.path.name} too dark')
+        logger.warning(f'Image {image.path.name} too dark')
         return None
 
     macbeth = find_macbeth(av_chan, config['general']['macbeth'])
 
     if macbeth is None:
-        eprint(f'No macbeth chart found in {image.path.name}')
+        logger.warning(f'No macbeth chart found in {image.path.name}')
         return None
 
     mac_cen_coords = macbeth[1]
     if not image.get_patches(mac_cen_coords):
-        eprint(f'Macbeth patches have saturated in {image.path.name}')
+        logger.warning(f'Macbeth patches have saturated in {image.path.name}')
         return None
 
+    image.macbeth = macbeth
+
     return macbeth
diff --git a/utils/tuning/libtuning/macbeth_ref.pgm b/utils/tuning/libtuning/macbeth_ref.pgm
index 37897140..089ea91f 100644
--- a/utils/tuning/libtuning/macbeth_ref.pgm
+++ b/utils/tuning/libtuning/macbeth_ref.pgm
@@ -1,5 +1,5 @@
-# SPDX-License-Identifier: BSD-2-Clause
 P5
+# SPDX-License-Identifier: BSD-2-Clause
 # Reference macbeth chart
 120 80
 255
diff --git a/utils/tuning/libtuning/modules/agc/rkisp1.py b/utils/tuning/libtuning/modules/agc/rkisp1.py
index 19a5555b..7147028a 100644
--- a/utils/tuning/libtuning/modules/agc/rkisp1.py
+++ b/utils/tuning/libtuning/modules/agc/rkisp1.py
@@ -64,7 +64,7 @@ class AGCRkISP1(AGC):
         return {'ConstraintNormal': normal, 'ConstraintHighlight': highlight}
 
     def _generate_y_target(self) -> list:
-        return 0.16
+        return 0.5
 
     def process(self, config: dict, images: list, outputs: dict) -> dict:
         output = {}
diff --git a/utils/tuning/libtuning/modules/ccm/__init__.py b/utils/tuning/libtuning/modules/ccm/__init__.py
new file mode 100644
index 00000000..322602af
--- /dev/null
+++ b/utils/tuning/libtuning/modules/ccm/__init__.py
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com>
+
+from libtuning.modules.ccm.ccm import CCM
+from libtuning.modules.ccm.rkisp1 import CCMRkISP1
diff --git a/utils/tuning/libtuning/modules/ccm/ccm.py b/utils/tuning/libtuning/modules/ccm/ccm.py
new file mode 100644
index 00000000..18702f8d
--- /dev/null
+++ b/utils/tuning/libtuning/modules/ccm/ccm.py
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com>
+# Copyright (C) 2024, Ideas on Board
+#
+# Base Ccm tuning module
+
+from ..module import Module
+
+from libtuning.ctt_ccm import ccm
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class CCM(Module):
+    type = 'ccm'
+    hr_name = 'CCM (Base)'
+    out_name = 'GenericCCM'
+
+    def __init__(self, debug: list):
+        super().__init__()
+
+        self.debug = debug
+
+    def do_calibration(self, images):
+        logger.info('Starting CCM calibration')
+
+        imgs = [img for img in images if img.macbeth is not None]
+
+        # todo: Take LSC calibration results into account.
+        cal_cr_list = None
+        cal_cb_list = None
+
+        try:
+            ccms = ccm(imgs, cal_cr_list, cal_cb_list)
+        except ArithmeticError:
+            logger.error('CCM calibration failed')
+            return None
+
+        return ccms
diff --git a/utils/tuning/libtuning/modules/ccm/rkisp1.py b/utils/tuning/libtuning/modules/ccm/rkisp1.py
new file mode 100644
index 00000000..be0252d9
--- /dev/null
+++ b/utils/tuning/libtuning/modules/ccm/rkisp1.py
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com>
+# Copyright (C) 2024, Ideas on Board
+#
+# Ccm module for tuning rkisp1
+
+from .ccm import CCM
+
+
+class CCMRkISP1(CCM):
+    hr_name = 'Crosstalk Correction (RkISP1)'
+    out_name = 'Ccm'
+
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+
+    # We don't need anything from the config file.
+    def validate_config(self, config: dict) -> bool:
+        return True
+
+    def process(self, config: dict, images: list, outputs: dict) -> dict:
+        output = {}
+
+        ccms = self.do_calibration(images)
+        output['ccms'] = ccms
+
+        return output
diff --git a/utils/tuning/libtuning/modules/lsc/lsc.py b/utils/tuning/libtuning/modules/lsc/lsc.py
index 344a07a3..e0ca22eb 100644
--- a/utils/tuning/libtuning/modules/lsc/lsc.py
+++ b/utils/tuning/libtuning/modules/lsc/lsc.py
@@ -59,7 +59,10 @@ class LSC(Module):
     def _lsc_single_channel(self, channel: np.array,
                             image: lt.Image, green_grid: np.array = None):
         grid = self._get_grid(channel, image.w, image.h)
-        grid -= image.blacklevel_16
+        # Clamp the values to a small positive, so that the following 1/grid
+        # doesn't produce negative results.
+        grid = np.maximum(grid - image.blacklevel_16, 0.1)
+
         if green_grid is None:
             table = np.reshape(1 / grid, self.sector_shape[::-1])
         else:
diff --git a/utils/tuning/libtuning/modules/lsc/raspberrypi.py b/utils/tuning/libtuning/modules/lsc/raspberrypi.py
index f19c7163..99bc4fe6 100644
--- a/utils/tuning/libtuning/modules/lsc/raspberrypi.py
+++ b/utils/tuning/libtuning/modules/lsc/raspberrypi.py
@@ -12,7 +12,9 @@ import libtuning.utils as utils
 
 from numbers import Number
 import numpy as np
+import logging
 
+logger = logging.getLogger(__name__)
 
 class ALSCRaspberryPi(LSC):
     # Override the type name so that the parser can match the entry in the
@@ -35,7 +37,7 @@ class ALSCRaspberryPi(LSC):
 
     def validate_config(self, config: dict) -> bool:
         if self not in config:
-            utils.eprint(f'{self.type} not in config')
+            logger.error(f'{self.type} not in config')
             return False
 
         valid = True
@@ -46,14 +48,14 @@ class ALSCRaspberryPi(LSC):
         color_key = self.do_color.name
 
         if lum_key not in conf and self.luminance_strength.required:
-            utils.eprint(f'{lum_key} is not in config')
+            logger.error(f'{lum_key} is not in config')
             valid = False
 
         if lum_key in conf and (conf[lum_key] < 0 or conf[lum_key] > 1):
-            utils.eprint(f'Warning: {lum_key} is not in range [0, 1]; defaulting to 0.5')
+            logger.warning(f'{lum_key} is not in range [0, 1]; defaulting to 0.5')
 
         if color_key not in conf and self.do_color.required:
-            utils.eprint(f'{color_key} is not in config')
+            logger.error(f'{color_key} is not in config')
             valid = False
 
         return valid
@@ -235,7 +237,7 @@ class ALSCRaspberryPi(LSC):
         if count == 1:
             output['sigma'] = 0.005
             output['sigma_Cb'] = 0.005
-            utils.eprint('Warning: Only one alsc calibration found; standard sigmas used for adaptive algorithm.')
+            logger.warning('Only one alsc calibration found; standard sigmas used for adaptive algorithm.')
             return output
 
         # Obtain worst-case scenario residual sigmas
diff --git a/utils/tuning/libtuning/modules/lsc/rkisp1.py b/utils/tuning/libtuning/modules/lsc/rkisp1.py
index 20406e43..c02b2306 100644
--- a/utils/tuning/libtuning/modules/lsc/rkisp1.py
+++ b/utils/tuning/libtuning/modules/lsc/rkisp1.py
@@ -33,13 +33,13 @@ class LSCRkISP1(LSC):
     #         table, flattened array of (blue's) green calibration table
 
     def _do_single_lsc(self, image: lt.Image):
-        cgr, gr = self._lsc_single_channel(image.channels[lt.Color.GR], image)
-        cgb, gb = self._lsc_single_channel(image.channels[lt.Color.GB], image)
-
-        # \todo Should these ratio against the average of both greens or just
-        # each green like we've done here?
-        cr, _ = self._lsc_single_channel(image.channels[lt.Color.R], image, gr)
-        cb, _ = self._lsc_single_channel(image.channels[lt.Color.B], image, gb)
+        # Perform LSC on each colour channel independently. A future enhancement
+        # worth investigating would be splitting the luminance and chrominance
+        # LSC as done by Raspberry Pi.
+        cgr, _ = self._lsc_single_channel(image.channels[lt.Color.GR], image)
+        cgb, _ = self._lsc_single_channel(image.channels[lt.Color.GB], image)
+        cr, _ = self._lsc_single_channel(image.channels[lt.Color.R], image)
+        cb, _ = self._lsc_single_channel(image.channels[lt.Color.B], image)
 
         return image.color, cr.flatten(), cb.flatten(), cgr.flatten(), cgb.flatten()
 
@@ -80,7 +80,8 @@ class LSCRkISP1(LSC):
             tables = []
             for lis in [list_cr, list_cgr, list_cgb, list_cb]:
                 table = np.mean(lis[indices], axis=0)
-                table = output_map_func((1, 3.999), (1024, 4095), table)
+                table = output_map_func((1, 4), (1024, 4096), table)
+                table = np.clip(table, 1024, 4095)
                 table = np.round(table).astype('int32').tolist()
                 tables.append(table)
 
@@ -106,6 +107,9 @@ class LSCRkISP1(LSC):
 
         output['sets'] = self._do_all_lsc(images)
 
+        if len(output['sets']) == 0:
+            return None
+
         # \todo Validate images from greyscale camera and force grescale mode
         # \todo Debug functionality
 
diff --git a/utils/tuning/libtuning/modules/static.py b/utils/tuning/libtuning/modules/static.py
new file mode 100644
index 00000000..4d0f7e18
--- /dev/null
+++ b/utils/tuning/libtuning/modules/static.py
@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2024, Ideas on Board
+#
+# Module implementation for static data
+
+from .module import Module
+
+
+# This module can be used in cases where the tuning file should contain
+# static data.
+class StaticModule(Module):
+    def __init__(self, out_name: str, output: dict = {}):
+        super().__init__()
+        self.out_name = out_name
+        self.hr_name = f'Static {out_name}'
+        self.type = f'static_{out_name}'
+        self.output = output
+
+    def validate_config(self, config: dict) -> bool:
+        return True
+
+    def process(self, config: dict, images: list, outputs: dict) -> dict:
+        return self.output
diff --git a/utils/tuning/libtuning/parsers/yaml_parser.py b/utils/tuning/libtuning/parsers/yaml_parser.py
index 244db24d..1fa6b7a8 100644
--- a/utils/tuning/libtuning/parsers/yaml_parser.py
+++ b/utils/tuning/libtuning/parsers/yaml_parser.py
@@ -5,13 +5,16 @@
 # Parser for YAML format config file
 
 from .parser import Parser
+import yaml
 
 
 class YamlParser(Parser):
     def __init__(self):
         super().__init__()
 
-    # \todo Implement this (it's fine for now as we don't need a config for
-    # rkisp1 LSC, which is the only user of this so far)
     def parse(self, config_file: str, modules: list) -> (dict, list):
-        return {}, []
+        # Dummy implementation that just reads the file
+        with open(config_file, 'r') as f:
+            config = yaml.safe_load(f)
+
+        return config, []
diff --git a/utils/tuning/libtuning/utils.py b/utils/tuning/libtuning/utils.py
index 1e8128ea..e35cf409 100644
--- a/utils/tuning/libtuning/utils.py
+++ b/utils/tuning/libtuning/utils.py
@@ -5,6 +5,7 @@
 #
 # Utilities for libtuning
 
+import cv2
 import decimal
 import math
 import numpy as np
@@ -12,16 +13,15 @@ import os
 from pathlib import Path
 import re
 import sys
+import logging
 
 import libtuning as lt
 from libtuning.image import Image
-from libtuning.macbeth import locate_macbeth
-
-# Utility functions
+from .macbeth import locate_macbeth
 
+logger = logging.getLogger(__name__)
 
-def eprint(*args, **kwargs):
-    print(*args, file=sys.stderr, **kwargs)
+# Utility functions
 
 
 def get_module_by_type_name(modules, name):
@@ -43,16 +43,30 @@ def _list_image_files(directory):
 
 
 def _parse_image_filename(fn: Path):
-    result = re.search(r'^(alsc_)?(\d+)[kK]_(\d+)?[lLuU]?.\w{3,4}$', fn.name)
-    if result is None:
-        eprint(f'The file name of {fn.name} is incorrectly formatted')
-        return None, None, None
+    lsc_only = False
+    color_temperature = None
+    lux = None
+
+    parts = fn.stem.split('_')
+    for part in parts:
+        if part == 'alsc':
+            lsc_only = True
+            continue
+        r = re.match(r'(\d+)[kK]', part)
+        if r:
+            color_temperature = int(r.group(1))
+            continue
+        r = re.match(r'(\d+)[lLuU]', part)
+        if r:
+            lux = int(r.group(1))
+
+    if color_temperature is None:
+        logger.error(f'The file name of "{fn.name}" does not contain a color temperature')
 
-    color = int(result.group(2))
-    lsc_only = result.group(1) is not None
-    lux = None if lsc_only else int(result.group(3))
+    if lux is None and lsc_only is False:
+        logger.error(f'The file name of "{fn.name}" must either contain alsc or a lux level')
 
-    return color, lux, lsc_only
+    return color_temperature, lux, lsc_only
 
 
 # \todo Implement this from check_imgs() in ctt.py
@@ -72,30 +86,34 @@ def _validate_images(images):
 def load_images(input_dir: str, config: dict, load_nonlsc: bool, load_lsc: bool) -> list:
     files = _list_image_files(input_dir)
     if len(files) == 0:
-        eprint(f'No images found in {input_dir}')
+        logger.error(f'No images found in {input_dir}')
         return None
 
     images = []
     for f in files:
         color, lux, lsc_only = _parse_image_filename(f)
+
         if color is None:
+            logger.warning(f'Ignoring "{f.name}" as it has no associated color temperature')
             continue
 
+        logger.info(f'Process image "{f.name}" (color={color}, lux={lux}, lsc_only={lsc_only})')
+
         # Skip lsc image if we don't need it
         if lsc_only and not load_lsc:
-            eprint(f'Skipping {f.name} as this tuner has no LSC module')
+            logger.warning(f'Skipping {f.name} as this tuner has no LSC module')
             continue
 
         # Skip non-lsc image if we don't need it
         if not lsc_only and not load_nonlsc:
-            eprint(f'Skipping {f.name} as this tuner only has an LSC module')
+            logger.warning(f'Skipping {f.name} as this tuner only has an LSC module')
             continue
 
         # Load image
         try:
             image = Image(f)
         except Exception as e:
-            eprint(f'Failed to load image {f.name}: {e}')
+            logger.error(f'Failed to load image {f.name}: {e}')
             continue
 
         # Populate simple fields
@@ -113,7 +131,7 @@ def load_images(input_dir: str, config: dict, load_nonlsc: bool, load_lsc: bool)
             continue
 
         # Handle macbeth
-        macbeth = locate_macbeth(config)
+        macbeth = locate_macbeth(image, config)
         if macbeth is None:
             continue
 
@@ -123,3 +141,46 @@ def load_images(input_dir: str, config: dict, load_nonlsc: bool, load_lsc: bool)
         return None
 
     return images
+
+
+
+"""
+Some code that will save virtual macbeth charts that show the difference between optimised matrices and non optimised matrices
+
+The function creates an image that is 1550 by 1050 pixels wide, and fills it with patches which are 200x200 pixels in size
+Each patch contains the ideal color, the color from the original matrix, and the color from the final matrix
+_________________
+|               |
+|  Ideal Color  |
+|_______________|
+|  Old  |  new  |
+| Color | Color |
+|_______|_______|
+
+Nice way of showing how the optimisation helps change the colors and the color matricies
+"""
+def visualise_macbeth_chart(macbeth_rgb, original_rgb, new_rgb, output_filename):
+    image = np.zeros((1050, 1550, 3), dtype=np.uint8)
+    colorindex = -1
+    for y in range(6):
+        for x in range(4):  # Creates 6 x 4 grid of macbeth chart
+            colorindex += 1
+            xlocation = 50 + 250 * x  # Means there is 50px of black gap between each square, more like the real macbeth chart.
+            ylocation = 50 + 250 * y
+            for g in range(200):
+                for i in range(100):
+                    image[xlocation + i, ylocation + g] = macbeth_rgb[colorindex]
+            xlocation = 150 + 250 * x
+            ylocation = 50 + 250 * y
+            for i in range(100):
+                for g in range(100):
+                    image[xlocation + i, ylocation + g] = original_rgb[colorindex]  # Smaller squares below to compare the old colors with the new ones
+            xlocation = 150 + 250 * x
+            ylocation = 150 + 250 * y
+            for i in range(100):
+                for g in range(100):
+                    image[xlocation + i, ylocation + g] = new_rgb[colorindex]
+
+    im_bgr = cv2.cvtColor(image, cv2.COLOR_RGB2BGR)
+    cv2.imwrite(f'{output_filename} Generated Macbeth Chart.png', im_bgr)
+
diff --git a/utils/tuning/requirements.txt b/utils/tuning/requirements.txt
new file mode 100644
index 00000000..3705769b
--- /dev/null
+++ b/utils/tuning/requirements.txt
@@ -0,0 +1,9 @@
+coloredlogs
+matplotlib
+numpy
+opencv-python
+py3exiv2
+pyyaml
+rawpy
+scikit-learn
+scipy
diff --git a/utils/tuning/rkisp1.py b/utils/tuning/rkisp1.py
index d0ce15d5..f5c42a61 100755
--- a/utils/tuning/rkisp1.py
+++ b/utils/tuning/rkisp1.py
@@ -5,6 +5,8 @@
 #
 # Tuning script for rkisp1
 
+import coloredlogs
+import logging
 import sys
 
 import libtuning as lt
@@ -12,31 +14,42 @@ from libtuning.parsers import YamlParser
 from libtuning.generators import YamlOutput
 from libtuning.modules.lsc import LSCRkISP1
 from libtuning.modules.agc import AGCRkISP1
+from libtuning.modules.ccm import CCMRkISP1
+from libtuning.modules.static import StaticModule
+
+coloredlogs.install(level=logging.INFO, fmt='%(name)s %(levelname)s %(message)s')
+
+agc = AGCRkISP1(debug=[lt.Debug.Plot])
+awb = StaticModule('Awb')
+blc = StaticModule('BlackLevelCorrection')
+ccm = CCMRkISP1(debug=[lt.Debug.Plot])
+color_processing = StaticModule('ColorProcessing')
+filter = StaticModule('Filter')
+gamma_out = StaticModule('GammaOutCorrection', {'gamma': 2.2})
+lsc = LSCRkISP1(debug=[lt.Debug.Plot],
+                # This is for the actual LSC tuning, and is part of the base LSC
+                # module. rkisp1's table sector sizes (16x16 programmed as mirrored
+                # 8x8) are separate, and is hardcoded in its specific LSC tuning
+                # module.
+                sector_shape=(17, 17),
+
+                sector_x_gradient=lt.gradient.Linear(lt.Remainder.DistributeFront),
+                sector_y_gradient=lt.gradient.Linear(lt.Remainder.DistributeFront),
+
+                # This is the function that will be used to average the pixels in
+                # each sector. This can also be a custom function.
+                sector_average_function=lt.average.Mean(),
+
+                # This is the function that will be used to smooth the color ratio
+                # values.  This can also be a custom function.
+                smoothing_function=lt.smoothing.MedianBlur(3),)
 
 tuner = lt.Tuner('RkISP1')
-tuner.add(LSCRkISP1(
-          debug=[lt.Debug.Plot],
-          # This is for the actual LSC tuning, and is part of the base LSC
-          # module. rkisp1's table sector sizes (16x16 programmed as mirrored
-          # 8x8) are separate, and is hardcoded in its specific LSC tuning
-          # module.
-          sector_shape=(17, 17),
-
-          sector_x_gradient=lt.gradient.Linear(lt.Remainder.DistributeFront),
-          sector_y_gradient=lt.gradient.Linear(lt.Remainder.DistributeFront),
-
-          # This is the function that will be used to average the pixels in
-          # each sector. This can also be a custom function.
-          sector_average_function=lt.average.Mean(),
-
-          # This is the function that will be used to smooth the color ratio
-          # values.  This can also be a custom function.
-          smoothing_function=lt.smoothing.MedianBlur(3),
-          ))
-tuner.add(AGCRkISP1(debug=[lt.Debug.Plot]))
+tuner.add([agc, awb, blc, ccm, color_processing, filter, gamma_out, lsc])
 tuner.set_input_parser(YamlParser())
 tuner.set_output_formatter(YamlOutput())
-tuner.set_output_order([AGCRkISP1, LSCRkISP1])
+tuner.set_output_order([agc, awb, blc, ccm, color_processing,
+                        filter, gamma_out, lsc])
 
 if __name__ == '__main__':
     sys.exit(tuner.run(sys.argv))
diff --git a/utils/update-kernel-headers.sh b/utils/update-kernel-headers.sh
index 8405be0a..9a64dfb5 100755
--- a/utils/update-kernel-headers.sh
+++ b/utils/update-kernel-headers.sh
@@ -9,7 +9,7 @@ if [ $# != 1 ] ; then
 fi
 
 header_dir="$(dirname "$(realpath "$0")")/../include/linux"
-kernel_dir="$1"
+kernel_dir="$(realpath "$1")"
 
 # Bail out if the directory doesn't contain kernel sources
 line=$(head -3 "${kernel_dir}/Kbuild" 2>/dev/null | tail -1)