perf: Use ImageWriter instead of OpenGL Pipeline for faster processing (#1789)

* perf: Use `ImageWriter` instead of OpenGL Pipeline for faster processing

* chore: Remove C++ part of OpenGL pipeline

* Clean up

* Update README.md

package/android/src/main/cpp/VideoPipeline.h

@@ -1,66 +0,0 @@
-//
-// Created by Marc Rousavy on 25.08.23.
-//
-
-#pragma once
-
-#include "OpenGLContext.h"
-#include "OpenGLRenderer.h"
-#include "PassThroughShader.h"
-#include <EGL/egl.h>
-#include <android/native_window.h>
-#include <fbjni/fbjni.h>
-#include <jni.h>
-#include <memory>
-#include <optional>
-
-namespace vision {
-
-using namespace facebook;
-
-class VideoPipeline : public jni::HybridClass<VideoPipeline> {
-public:
-  static auto constexpr kJavaDescriptor = "Lcom/mrousavy/camera/core/VideoPipeline;";
-  static jni::local_ref<jhybriddata> initHybrid(jni::alias_ref<jhybridobject> jThis, int width, int height);
-  static void registerNatives();
-
-public:
-  ~VideoPipeline();
-
-  // -> SurfaceTexture input
-  int getInputTextureId();
-
-  // <- Frame Processor output
-  void setFrameProcessorOutputSurface(jobject surface);
-  void removeFrameProcessorOutputSurface();
-
-  // <- MediaRecorder output
-  void setRecordingSessionOutputSurface(jobject surface);
-  void removeRecordingSessionOutputSurface();
-
-  // Frame callbacks
-  void onBeforeFrame();
-  void onFrame(jni::alias_ref<jni::JArrayFloat> transformMatrix);
-
-private:
-  // Private constructor. Use `create(..)` to create new instances.
-  explicit VideoPipeline(jni::alias_ref<jhybridobject> jThis, int width, int height);
-
-private:
-  // Input Surface Texture
-  std::optional<OpenGLTexture> _inputTexture = std::nullopt;
-  int _width = 0;
-  int _height = 0;
-
-  // Output Contexts
-  std::shared_ptr<OpenGLContext> _context = nullptr;
-  std::unique_ptr<OpenGLRenderer> _frameProcessorOutput = nullptr;
-  std::unique_ptr<OpenGLRenderer> _recordingSessionOutput = nullptr;
-
-private:
-  friend HybridBase;
-  jni::global_ref<javaobject> _javaPart;
-  static constexpr auto TAG = "VideoPipeline";
-};
-
-} // namespace vision