--- /dev/null
+/**
+ * \brief VP Stages. Buffer stage declaration
+ * \author Sylvain Gaeremynck <sylvain.gaeremynck@parrot.fr>
+ * \author Aurelien Morelle <aurelien.morelle@parrot.fr>
+ * \author Thomas Landais <thomas.landais@parrot.fr>
+ * \version 2.0
+ * \date first release 16/03/2007
+ * \date modification 19/03/2007
+ */
+
+#ifndef _VP_STAGES_IO_BUFFER_H_
+#define _VP_STAGES_IO_BUFFER_H_
+
+/**
+ * @defgroup VP_SDK
+ * @{ */
+
+/**
+ * @defgroup VP_Stages
+ * @{ */
+
+/**
+ * @defgroup vp_stages_io_buffer input/output buffers stage
+ * @{ */
+
+
+///////////////////////////////////////////////
+// INCLUDE
+
+#include <VP_Api/vp_api.h>
+
+
+///////////////////////////////////////////////
+// TYPEDEFS
+
+/**
+ * \typedef enumerate all the camera resolution supported in camif
+ */
+
+typedef struct _vp_stages_input_buffer_config_
+{
+ int8_t *buffer;
+ uint32_t total_size;
+ uint32_t send_size;
+
+ // private
+ uint32_t remaining_size;
+} vp_stages_input_buffer_config_t;
+
+typedef struct _vp_stages_output_buffer_config_ vp_stages_output_buffer_config_t;
+
+
+
+///////////////////////////////////////////////
+// FUNCTIONS
+
+
+/**
+ * @fn Open the input buffer stage
+ * @param vp_stages_input_buffer_config_t *cfg : configuration of buffer parameters
+ * @todo modify the return
+ * @return VP_SUCCESS
+ */
+C_RESULT
+vp_stages_input_buffer_stage_open(vp_stages_input_buffer_config_t *cfg);
+
+/**
+ * @fn Transform the buffer input stage
+ * @brief Select the right indexbuffer of cfg and increment the size and the data pointer to the output
+ * @param vp_stages_input_buffer_config_t *cfg : data cfg buffer is send to out buffer
+ * @param vp_api_io_data_t *in : not used here
+ * @param vp_api_io_data_t *out : used to send the data
+ * @return VP_SUCCESS or VP_FAILURE
+ */
+C_RESULT
+vp_stages_input_buffer_stage_transform(vp_stages_input_buffer_config_t *cfg, vp_api_io_data_t *in, vp_api_io_data_t *out);
+
+/**
+ * @fn Close the input buffer stage
+ * @brief Nothing to do
+ * @param vp_stages_input_buffer_config_t *cfg
+ * @return VP_SUCCESS
+ */
+C_RESULT
+vp_stages_input_buffer_stage_close(vp_stages_input_buffer_config_t *cfg);
+
+/**
+ * @fn Open the output buffer stage
+ * @brief Nothing to do
+ * @param vp_stages_input_buffer_config_t *cfg
+ * @return VP_SUCCESS
+ */
+C_RESULT
+vp_stages_output_buffer_stage_open(vp_stages_output_buffer_config_t *cfg);
+
+/**
+ * @fn Transform the output buffer stage
+ * @param vp_stages_input_buffer_config_t *cfg
+ * @param vp_api_io_data_t *in
+ * @param vp_api_io_data_t *out
+ * @todo A COMMENTER
+ * @return VP_SUCCESS or VP_FAILURE
+ */
+C_RESULT
+vp_stages_output_buffer_stage_transform(vp_stages_output_buffer_config_t *cfg, vp_api_io_data_t *in, vp_api_io_data_t *out);
+
+/**
+ * @fn Close the output buffer stage
+ * @brief Nothing to do
+ * @param vp_stages_input_buffer_config_t *cfg
+ * @return VP_SUCCESS
+ */
+C_RESULT
+vp_stages_output_buffer_stage_close(vp_stages_output_buffer_config_t *cfg);
+
+// vp_stages_io_buffer
+/** @} */
+// VP_Stages
+/** @} */
+// VP_SDK
+/** @} */
+
+#endif // ! _VP_STAGES_IO_BUFFER_H_