lavfi/dnn_backend_native_layer_depth2space.h: Documentation

Add documentation for Depth to Space Layer

Signed-off-by: Shubhanshu Saxena <shubhanshu.e01@gmail.com>

libavfilter/dnn/dnn_backend_native_layer_depth2space.h

@@ -34,7 +34,37 @@ typedef struct DepthToSpaceParams{
     int block_size;
 } DepthToSpaceParams;
 
+/**
+ * @brief Load the Depth to Space Layer.
+ *
+ * It assigns the depth to space layer with DepthToSpaceParams
+ * after parsing from the model file context.
+ *
+ * @param layer pointer to the DNN layer instance
+ * @param model_file_context pointer to model file context
+ * @param file_size model file size to check if data is read
+ * correctly from the model file
+ * @param operands_num operand count of the whole model to
+ * check if data is read correctly from the model file
+ * @return number of bytes read from the model file
+ * @retval 0 if an error occurs or out of memory
+ */
 int ff_dnn_load_layer_depth2space(Layer *layer, AVIOContext *model_file_context, int file_size, int operands_num);
+
+/**
+ * @brief Execute the Depth to Space Layer.
+ *
+ * It rearranges the input data from depth into spatial
+ * form by applying Depth to Space transformation.
+ *
+ * @param operands all operands for the model
+ * @param input_operand_indexes input operand indexes for this layer
+ * @param output_operand_index output operand index for this layer
+ * @param parameters depth to space layer parameters
+ * @param ctx pointer to Native model context for logging
+ * @retval 0 if the execution succeeds
+ * @retval DNN_ERROR if the execution fails
+ */
 int ff_dnn_execute_layer_depth2space(DnnOperand *operands, const int32_t *input_operand_indexes,
                                      int32_t output_operand_index, const void *parameters, NativeContext *ctx);