feat: add scale transformation and update CMake configuration

Author: Hip-po

CMakeLists.txt

@@ -9,7 +9,8 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++20 -Wall -Wextra -Wno-deprecated
 
 set_property(GLOBAL PROPERTY CXX_STANDARD 20)
 
-if (UNIX AND NOT APPLE AND NOT DEFINED CMAKE_CXX_COMPILER)
+if (UNIX AND NOT APPLE)
+    message(STATUS "Setting C++ compiler to g++-13")
     set(CMAKE_CXX_COMPILER "g++-13")
 endif()
 
@@ -36,7 +37,7 @@ if (NOT DEFINED ENV{Qt6_DIR})
     set(Qt6_DIR "/usr/include/qt6/6.8.2/gcc_64/lib/cmake/Qt6")
 endif()
 
-if (CI_BUILD)
+if (CI_BUILD EQUAL 1)
     message(STATUS "CI_BUILD is defined")
     include(FetchContent)
     FetchContent_Declare(
@@ -55,7 +56,7 @@ endif()
 find_package(OpenCV REQUIRED)
 find_package(Python3 3.12 REQUIRED COMPONENTS Development Development.Module Development.Embed)
 find_package(Qt6 REQUIRED COMPONENTS Widgets Core Gui)
-if (NOT CI_BUILD)
+if (NOT CI_BUILD EQUAL 1)
     find_package(nlohmann_json CONFIG REQUIRED)
     set(argparse_DIR "${VCPKG_ROOT}/installed/${VCPKG_TARGET_TRIPLET}/share/argparse")
     find_package(argparse CONFIG REQUIRED)
@@ -86,6 +87,7 @@ set(SOURCES
     src/transformation/other/overlay.cpp
     src/transformation/other/repeat.cpp
     src/transformation/other/zoom.cpp
+    src/transformation/other/scale.cpp
 )
 
 add_executable(${PROJECT_NAME} ${SOURCES})

include/transformation/transformation.hpp

@@ -30,6 +30,7 @@ namespace transformation
     // Other
     transformation(repeat);
     transformation(zoom);
+    transformation(scale);
 
     /***
         TODO: transformation(concat);
@@ -46,5 +47,6 @@ namespace transformation
         // Other
         {"repeat", repeat},
         {"zoom", zoom},
+        {"scale", scale},
     };
 }

src/transformation/other/scale.cpp

@@ -0,0 +1,22 @@
+/*
+** EPITECH PROJECT, 2025
+** eip [WSL: Ubuntu]
+** File description:
+** scale
+*/
+
+#include "transformation/transformation.hpp"
+
+void transformation::scale(IterableInput input, const json::object_t &args)
+{
+    const float startFactor = args.at("factor")[0];
+    const float endFactor = args.at("factor")[1];
+
+    const float scaleIncr = (endFactor - startFactor) / (input._nbFrames - 1);
+    float scaleAcc = startFactor - scaleIncr;
+
+    for (auto &[frame, _] : input) {
+        scaleAcc += scaleIncr;
+        cv::resize(frame, frame, cv::Size(), scaleAcc, scaleAcc);
+    }
+}

video.py

@@ -9,7 +9,6 @@
 t.add()
 
 v = video("video/v.mp4").apply(translate(x, y + 175))
-v.apply(zoom(factor=(1, 3)), endTime=1)
-v.apply(zoom(factor=(3, 1)), startTime=1)
+v.apply(scale(factor=(1, 0.2)))
 v.add()
 v.keep()

videocode/transformation/_AllTransformation.py

@@ -21,3 +21,4 @@
 from videocode.transformation.other.Overlay import *
 from videocode.transformation.other.Repeat import *
 from videocode.transformation.other.Zoom import *
+from videocode.transformation.other.Scale import *

videocode/transformation/other/Scale.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+
+from videocode.transformation.Transformation import Transformation
+
+class scale(Transformation):
+    """
+    `Scale` an `Input` keeping the pixels outside the dimension of the `Input` unlike `Zoom`.
+    """
+
+    def __init__(self, *, factor: float | int | tuple[float, float] = 2) -> None:
+        if isinstance(factor, tuple):
+            self.factor = factor
+        else:
+            self.factor = (factor, factor)

videocode/transformation/other/Zoom.py

@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
 
-from typing import Generator, Iterator
 from videocode.transformation.Transformation import Transformation
 
 from videocode.Constant import *