diff --git a/sf-writer/CMakeLists.txt b/sf-writer/CMakeLists.txt
index 2ef7444..ec2f24e 100644
--- a/sf-writer/CMakeLists.txt
+++ b/sf-writer/CMakeLists.txt
@@ -1,7 +1,10 @@
 file(GLOB SOURCES
         *.cpp)
 
-add_executable(sf-writer sf_h5_writer.cpp BufferMultiReader.cpp)
+add_executable(sf-writer
+        sf_h5_writer.cpp
+        BufferMultiReader.cpp
+        SFWriter.cpp)
 set_target_properties(sf-writer PROPERTIES OUTPUT_NAME sf_h5_writer)
 
 target_link_libraries(sf-writer
diff --git a/sf-writer/SFWriter.cpp b/sf-writer/SFWriter.cpp
new file mode 100644
index 0000000..1f508dd
--- /dev/null
+++ b/sf-writer/SFWriter.cpp
@@ -0,0 +1,71 @@
+#include "SFWriter.hpp"
+#include "buffer_config.hpp"
+
+using namespace std;
+using namespace core_buffer;
+
+SFWriter::SFWriter(
+        const string& output_file,
+        const size_t n_frames,
+        const size_t n_modules)
+{
+    file_ = H5::H5File(output_file, H5F_ACC_TRUNC);
+
+    hsize_t image_dataset_dims[3] =
+            {n_frames, n_modules * MODULE_Y_SIZE, MODULE_X_SIZE};
+
+    H5::DataSpace image_dataspace(3, image_dataset_dims);
+
+    hsize_t image_dataset_chunking[3] =
+            {1, n_modules * MODULE_Y_SIZE, MODULE_X_SIZE};
+    H5::DSetCreatPropList image_dataset_properties;
+    image_dataset_properties.setChunk(3, image_dataset_chunking);
+
+    image_dataset_ = file_.createDataSet(
+            "image",
+            H5::PredType::NATIVE_UINT16,
+            image_dataspace,
+            image_dataset_properties);
+
+    hsize_t metadata_dataset_dims[2] = {n_frames, 1};
+    H5::DataSpace metadata_dataspace(2, metadata_dataset_dims);
+
+    pulse_id_dataset_ = file_.createDataSet(
+            "pulse_id",
+            H5::PredType::NATIVE_UINT64,
+            metadata_dataspace);
+
+    pulse_id_dataset_ = file_.createDataSet(
+            "frame_index",
+            H5::PredType::NATIVE_UINT64,
+            metadata_dataspace);
+
+    pulse_id_dataset_ = file_.createDataSet(
+            "daq_rec",
+            H5::PredType::NATIVE_UINT32,
+            metadata_dataspace);
+
+    pulse_id_dataset_ = file_.createDataSet(
+            "n_received_packets",
+            H5::PredType::NATIVE_UINT16,
+            metadata_dataspace);
+}
+
+SFWriter::~SFWriter()
+{
+    close_file();
+}
+
+void SFWriter::close_file()
+{
+    image_dataset_.close();
+    pulse_id_dataset_.close();
+    frame_index_dataset_.close();
+    daq_rec_dataset_.close();
+    n_received_packets_dataset_.close();
+
+    file_.close();
+}
+
+//void write(char* data, std::shared_ptr<DetectorFrame> metadata);
+//void close_file();
\ No newline at end of file
diff --git a/sf-writer/SFWriter.hpp b/sf-writer/SFWriter.hpp
new file mode 100644
index 0000000..6b6fe75
--- /dev/null
+++ b/sf-writer/SFWriter.hpp
@@ -0,0 +1,30 @@
+#ifndef SFWRITER_HPP
+#define SFWRITER_HPP
+
+#include <memory>
+#include <string>
+#include <H5Cpp.h>
+#include "RingBuffer.hpp"
+
+class SFWriter {
+
+    H5::H5File file_;
+
+    H5::DataSet image_dataset_;
+    H5::DataSet pulse_id_dataset_;
+    H5::DataSet frame_index_dataset_;
+    H5::DataSet daq_rec_dataset_;
+    H5::DataSet n_received_packets_dataset_;
+
+public:
+    SFWriter(
+            const std::string& output_file,
+            const size_t n_frames,
+            const size_t n_modules);
+    ~SFWriter();
+    void write(char* data, std::shared_ptr<DetectorFrame> metadata);
+    void close_file();
+};
+
+
+#endif //SFWRITER_HPP