00001 /* 00002 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions 00006 * are met: 00007 * * Redistributions of source code must retain the above copyright 00008 * notice, this list of conditions and the following disclaimer. 00009 * * Redistributions in binary form must reproduce the above copyright 00010 * notice, this list of conditions and the following disclaimer in the 00011 * documentation and/or other materials provided with the distribution. 00012 * * Neither the name of NVIDIA CORPORATION nor the names of its 00013 * contributors may be used to endorse or promote products derived 00014 * from this software without specific prior written permission. 00015 * 00016 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 00017 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00018 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00019 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 00020 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00021 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00022 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00023 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 00024 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00026 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 */ 00028 00029 /** 00030 * @file NvUtils.h 00031 * 00032 * @brief Common functions used by applications 00033 */ 00034 00035 #ifndef __NV_UTILS_H_ 00036 #define __NV_UTILS_H_ 00037 00038 #include <fstream> 00039 #include "NvBuffer.h" 00040 00041 /** 00042 * Read a video frame from a file to the Buffer structure 00043 * 00044 * This function reads data from the file into the buffer plane by plane. 00045 * It reads width * height * byteperpixel of data for each plane while taking 00046 * care of the stride of the plane. 00047 * 00048 * @param[in] stream Input file stream 00049 * @param[in] buffer Buffer object into which the data has to be read 00050 * @returns 0 for success, -1 for failure 00051 */ 00052 int read_video_frame(std::ifstream * stream, NvBuffer & buffer); 00053 00054 /** 00055 * Wite a video frame to a file from the Buffer structure 00056 * 00057 * This function writes data to the file from the buffer plane by plane. 00058 * It writes width * height * byteperpixel of data for each plane while taking 00059 * care of the stride of the plane. 00060 * 00061 * @param[in] stream Output file stream 00062 * @param[in] buffer Buffer object from which the data has to be written 00063 * @returns 0 for success, -1 for failure 00064 */ 00065 int write_video_frame(std::ofstream * stream, NvBuffer & buffer); 00066 #endif