# uyuv\_nv12\_y/app.cpp /******************************************************************************* Copyright (c) 2021-2022 Qualcomm Technologies, Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted (subject to the limitations in the disclaimer below) provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Qualcomm Technologies, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. @brief Program to run FastADAS camera conversion helper function to convert from UYVY to NV12 and then downscale the Y channel for monochromatic algorithms like feature detection and tracking to use. NV12 is used as an intermediate format in this example for cases feeding into the hardware video encoder. *******************************************************************************/ #include #include #include #include "util.h" int main( int argc, char** argv ) { // one-time initializations if( FADAS_ERROR_NONE != FadasInit( nullptr ) ) UTIL_ERROR( "FAILED: FadasInit" ); // initialize UYVY image memory FadasImage_t uyvyImg = { 0 }; uyvyImg.props.format = FADAS_IMAGE_FORMAT_UYVY; uyvyImg.props.width = 1920; uyvyImg.props.height = 1020; uyvyImg.props.stride[0] = FADAS_MODULO128( 2 * uyvyImg.props.width ); uyvyImg.plane[0] = FadasMemAlloc( uyvyImg.props.stride[0] * uyvyImg.props.height, 128 ); uyvyImg.bAllocated = true; // WARNING: false if memory allocated elsewhere and not the owner if( FadasRegBuf( FADAS_BUF_TYPE_IN, uyvyImg.plane[0], uyvyImg.props.stride[0] * uyvyImg.props.height ) != FADAS_ERROR_NONE ) UTIL_ERROR( "Error registering buffer (uyvyImg)\n" ); // initialize NV12 image memory FadasImage_t nv12Img = { 0 }; nv12Img.props.format = FADAS_IMAGE_FORMAT_Y8UV8; nv12Img.props.width = uyvyImg.props.width; nv12Img.props.height = uyvyImg.props.height; nv12Img.props.stride[0] = FADAS_MODULO128( nv12Img.props.width ); nv12Img.props.stride[1] = FADAS_MODULO128( nv12Img.props.width ); nv12Img.plane[0] = FadasMemAlloc( nv12Img.props.stride[0] * nv12Img.props.height, 128 ); nv12Img.plane[1] = FadasMemAlloc( nv12Img.props.stride[1] * nv12Img.props.height, 128 ); nv12Img.bAllocated = true; // WARNING: false if memory allocated elsewhere and not the owner if( FadasRegBuf( FADAS_BUF_TYPE_INOUT, nv12Img.plane[0], nv12Img.props.stride[0] * nv12Img.props.height ) != FADAS_ERROR_NONE ) UTIL_ERROR( "Error registering buffer (nv12Img.0)\n" ); if( FadasRegBuf( FADAS_BUF_TYPE_INOUT, nv12Img.plane[1], nv12Img.props.stride[1] * nv12Img.props.height ) != FADAS_ERROR_NONE ) UTIL_ERROR( "Error registering buffer (nv12Img.1)\n" ); // initialize Y image source memory FadasImage_t yImgSrc = { 0 }; yImgSrc.props.format = FADAS_IMAGE_FORMAT_Y; yImgSrc.props.width = nv12Img.props.width / 2; yImgSrc.props.height = nv12Img.props.height / 2; yImgSrc.props.stride[0] = FADAS_MODULO128( nv12Img.props.width ); yImgSrc.plane[0] = FadasMemAlloc( yImgSrc.props.stride[0] * yImgSrc.props.height, 128 ); yImgSrc.bAllocated = true; // WARNING: false if memory allocated elsewhere and not the owner if( FadasRegBuf( FADAS_BUF_TYPE_OUT, yImgSrc.plane[0], yImgSrc.props.stride[0] * yImgSrc.props.height ) != FADAS_ERROR_NONE ) UTIL_ERROR( "Error registering buffer (yImgSrc)\n" ); // initialize Y image output memory FadasImage_t yImgOut = { 0 }; yImgOut.props.format = FADAS_IMAGE_FORMAT_Y; yImgOut.props.width = nv12Img.props.width / 2; yImgOut.props.height = nv12Img.props.height / 2; yImgOut.props.stride[0] = FADAS_MODULO128( nv12Img.props.width ); yImgOut.plane[0] = FadasMemAlloc( yImgOut.props.stride[0] * yImgOut.props.height, 128 ); yImgOut.bAllocated = true; // WARNING: false if memory allocated elsewhere and not the owner if( FadasRegBuf( FADAS_BUF_TYPE_OUT, yImgOut.plane[0], yImgOut.props.stride[0] * yImgOut.props.height ) != FADAS_ERROR_NONE ) UTIL_ERROR( "Error registering buffer (yImgOut)\n" ); // fake camera loop { UTIL_ReadRAW( "img1.uyvy", (2 * uyvyImg.props.width), uyvyImg.props.height, uyvyImg.props.stride[0], (uint8_t*)uyvyImg.plane[0] ); if( FadasCvtYUV_UYVYtoNV12( (uint8_t*)uyvyImg.plane[0], uyvyImg.props, (uint8_t*)nv12Img.plane[0], nv12Img.props.stride[0], (uint8_t*)nv12Img.plane[1], nv12Img.props.stride[1] ) != FADAS_ERROR_NONE ) UTIL_ERROR( "FadasCvtYUV_UYVYtoNV12 failed" ); if( FadasCvtYUV_DownscaleBy2( (uint8_t*)nv12Img.plane[0], yImgSrc.props, (uint8_t*)yImgOut.plane[0], &yImgOut.props ) != FADAS_ERROR_NONE ) UTIL_ERROR( "FadasCvtYUV_DownscaleBy2 failed" ); UTIL_WritePGM( "img1.pgm", yImgOut.props.width, yImgOut.props.height, 255, (uint8_t*)yImgOut.plane[0], yImgOut.props.stride[0] ); } // cleanup FadasDeregBuf( uyvyImg.plane[0] ); FadasDeregBuf( nv12Img.plane[0] ); FadasDeregBuf( nv12Img.plane[1] ); FadasDeregBuf( yImgSrc.plane[0] ); FadasDeregBuf( yImgOut.plane[0] ); FadasMemFree( uyvyImg.plane[0] ); FadasMemFree( nv12Img.plane[0] ); FadasMemFree( nv12Img.plane[1] ); FadasMemFree( yImgSrc.plane[0] ); FadasMemFree( yImgOut.plane[0] ); FadasDeInit(); return 0; } Copy to clipboard Last Published: Sep 30, 2024 [Previous Topic uyvy/app.cpp](https://docs.qualcomm.com/bundle/publicresource/80-63309-1/topics/uyvy.md) [Next Topic fpe/app.cpp](https://docs.qualcomm.com/bundle/publicresource/80-63309-1/topics/fpe.md)