chore(models): moved model files into subdirectories

Signed-off-by: k4yt3x <i@k4yt3x.com>

src/libplacebo_filter.cpp

@@ -42,8 +42,9 @@ int LibplaceboFilter::init(AVCodecContext *dec_ctx, AVCodecContext *enc_ctx, AVB
         shader_full_path = shader_path;
     } else {
         // Construct the fallback path using std::filesystem
-        shader_full_path =
-            find_resource_file(std::filesystem::path("models") / (shader_path.string() + ".glsl"));
+        shader_full_path = find_resource_file(
+            std::filesystem::path("models") / "libplacebo" / (shader_path.string() + ".glsl")
+        );
     }
 
     // Check if the shader file exists

src/realesrgan_filter.cpp

@@ -39,9 +39,9 @@ int RealesrganFilter::init(AVCodecContext *dec_ctx, AVCodecContext *enc_ctx, AVB
 
     if (model) {
         // Find the model paths by model name if provided
-        model_param_path = std::filesystem::path("models") /
+        model_param_path = std::filesystem::path("models") / "realesrgan" /
                            (std::string(model) + "-x" + std::to_string(scaling_factor) + ".param");
-        model_bin_path = std::filesystem::path("models") /
+        model_bin_path = std::filesystem::path("models") / "realesrgan" /
                          (std::string(model) + "-x" + std::to_string(scaling_factor) + ".bin");
     } else if (!custom_model_param_path.empty() && !custom_model_bin_path.empty()) {
         // Use the custom model paths if provided