使用libjpeg-turbo进行JPG编解码-YUV422P转JPG为例

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BUILDING.md        fuzz          jconfig.txt      jdhuff.c    jfdctfst.c          jstdhuff.c      tjexampletest.inCMakeLists.txt     jaricom.c     jconfigint.h.in  jdhuff.h    jfdctint.c          jutils.c        tjunittest.cChangeLog.md       java          jcparam.c        jdicc.c     jidctflt.c          jversion.h.in   tjutil.cLICENSE.md         jcapimin.c    jcphuff.c        jdinput.c   jidctfst.c          libjpeg.map.in  tjutil.hREADME.ijg         jcapistd.c    jcprepct.c       jdlhuff.c   jidctint.c          libjpeg.txt     transupp.cREADME.md          jcarith.c     jcsample.c       jdlossls.c  jidctred.c          md5             transupp.happveyor.yml       jccoefct.c    jcstest.c        jdmainct.c  jinclude.h          rdbmp.c         turbojpeg-jni.ccderror.h          jccolext.c    jctrans.c        jdmainct.h  jlossls.h           rdcolmap.c      turbojpeg-mapfilecdjpeg.c           jccolor.c     jdapimin.c       jdmarker.c  jmemmgr.c           rdgif.c         turbojpeg-mapfile.jnicdjpeg.h           jcdctmgr.c    jdapistd.c       jdmaster.c  jmemnobs.c          rdjpgcom.1      turbojpeg-mp.cchange.log         jcdiffct.c    jdarith.c        jdmaster.h  jmemsys.h           rdjpgcom.c      turbojpeg.ccjpeg.1            jchuff.c      jdatadst-tj.c    jdmerge.c   jmorecfg.h          rdppm.c         turbojpeg.hcjpeg.c            jchuff.h      jdatadst.c       jdmerge.h   jpeg_nbits_table.h  rdswitch.c      usage.txtdoxygen-extra.css  jcmaster.h    jdct.h           jerror.c    jsamplecomp.h       tjbench.c       wrtarga.cdoxygen.config     jcomapi.c     jddctmgr.c       jerror.h    jsimd.h             tjbenchtest.inexample.c          jconfig.h.in  jddiffct.c       jfdctflt.c  jsimddct.h          tjexample.c

[sudo] password for lhj:Reading package lists... DoneBuilding dependency treeReading state information... DoneThe following NEW packages will be installed:  nasm0 upgraded, 1 newly installed, 0 to remove and 224 not upgraded.Need to get 362 kB of archives.After this operation, 3374 kB of additional disk space will be used.Get:1 http://archive.ubuntu.com/ubuntu focal/universe amd64 nasm amd64 2.14.02-1 [362 kB]Fetched 362 kB in 2s (185 kB/s)Selecting previously unselected package nasm.(Reading database ... 131163 files and directories currently installed.)Preparing to unpack .../nasm_2.14.02-1_amd64.deb ...Unpacking nasm (2.14.02-1) ...Setting up nasm (2.14.02-1) ...Processing triggers for man-db (2.9.1-1) ...

-- The C compiler identification is GNU 9.4.0-- Check for working C compiler: /usr/bin/cc-- Check for working C compiler: /usr/bin/cc -- works-- Detecting C compiler ABI info-- Detecting C compiler ABI info - done-- Detecting C compile features-- Detecting C compile features - done-- CMAKE_BUILD_TYPE = Release-- VERSION = 3.0.1, BUILD = 20230810-- 64-bit build (x86_64)-- CMAKE_INSTALL_PREFIX = /opt/libjpeg-turbo-- CMAKE_INSTALL_BINDIR = bin (/opt/libjpeg-turbo/bin)-- CMAKE_INSTALL_DATAROOTDIR =  (/opt/libjpeg-turbo)-- CMAKE_INSTALL_DOCDIR = doc (/opt/libjpeg-turbo/doc)-- CMAKE_INSTALL_INCLUDEDIR = include (/opt/libjpeg-turbo/include)-- CMAKE_INSTALL_LIBDIR = lib64 (/opt/libjpeg-turbo/lib64)-- CMAKE_INSTALL_MANDIR = man (/opt/libjpeg-turbo/man)-- Shared libraries enabled (ENABLE_SHARED = 1)-- Static libraries enabled (ENABLE_STATIC = 1)-- Arithmetic decoding support enabled (WITH_ARITH_DEC = 1)-- Arithmetic encoding support enabled (WITH_ARITH_ENC = 1)-- TurboJPEG API library enabled (WITH_TURBOJPEG = 1)-- TurboJPEG Java wrapper disabled (WITH_JAVA = 0)-- Emulating libjpeg API/ABI v6.2 (WITH_JPEG7 = 0, WITH_JPEG8 = 0)-- libjpeg API shared library version = 62.4.0-- Compiler flags =  -O3 -DNDEBUG-- Linker flags =-- Looking for sys/types.h-- Looking for sys/types.h - found-- Looking for stdint.h-- Looking for stdint.h - found-- Looking for stddef.h-- Looking for stddef.h - found-- Check size of size_t-- Check size of size_t - done-- Check size of unsigned long-- Check size of unsigned long - done-- Performing Test HAVE_BUILTIN_CTZL-- Performing Test HAVE_BUILTIN_CTZL - Success-- Performing Test RIGHT_SHIFT_IS_UNSIGNED-- Performing Test RIGHT_SHIFT_IS_UNSIGNED - Failed-- Performing Test INLINE_WORKS-- Performing Test INLINE_WORKS - Success-- INLINE = __inline__ __attribute__((always_inline)) (FORCE_INLINE = 1)-- Performing Test HAVE_THREAD_LOCAL-- Performing Test HAVE_THREAD_LOCAL - Success-- THREAD_LOCAL = __thread-- Performing Test HAVE_VERSION_SCRIPT-- Performing Test HAVE_VERSION_SCRIPT - Success-- Linker supports GNU-style version scripts-- CMAKE_EXECUTABLE_SUFFIX =-- Looking for a ASM_NASM compiler-- Looking for a ASM_NASM compiler - /usr/bin/nasm-- The ASM_NASM compiler identification is NASM-- Found assembler: /usr/bin/nasm-- CMAKE_ASM_NASM_COMPILER = /usr/bin/nasm-- CMAKE_ASM_NASM_OBJECT_FORMAT = elf64-- CMAKE_ASM_NASM_FLAGS =  -DELF -D__x86_64__ -DPIC-- SIMD extensions: x86_64 (WITH_SIMD = 1)-- FLOATTEST8 = sse-- FLOATTEST12 = no-fp-contract-- RPM architecture = x86_64, DEB architecture = amd64-- Configuring done-- Generating done-- Build files have been written to: /home/lhj/libjpeg-turbo/build

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CMakeCache.txt       cmake_uninstall.cmake  jconfigint.h     libjpeg.so             md5         tjbench-staticCMakeFiles           croptest               jcstest          libjpeg.so.62          pkgscripts  tjbenchtestCTestTestfile.cmake  djpeg                  jpegtran         libjpeg.so.62.4.0      rdjpgcom    tjexampleMakefile             djpeg-static           jpegtran-static  libturbojpeg.a         sharedlib   tjexampletestcjpeg                example                jversion.h       libturbojpeg.so        simd        tjunittestcjpeg-static         example-static         libjpeg.a        libturbojpeg.so.0      strtest     tjunittest-staticcmake_install.cmake  jconfig.h              libjpeg.map      libturbojpeg.so.0.3.0  tjbench     wrjpgcom

[sudo] password for lhj: [  6%] Built target simd[  7%] Built target turbojpeg12[ 10%] Built target jpeg16[ 16%] Built target jpeg12[ 17%] Built target turbojpeg16[ 31%] Built target turbojpeg[ 31%] Built target turbojpeg12-static[ 34%] Built target jpeg16-static[ 40%] Built target jpeg12-static[ 53%] Built target jpeg-static[ 54%] Built target djpeg12-static[ 54%] Built target djpeg16-static[ 56%] Built target djpeg-static[ 56%] Built target example-static[ 57%] Built target tjexample[ 57%] Built target turbojpeg16-static[ 71%] Built target turbojpeg-static[ 72%] Built target jpegtran-static[ 73%] Built target tjunittest-static[ 74%] Built target rdjpgcom[ 75%] Built target tjunittest[ 75%] Built target tjbench-static[ 76%] Built target cjpeg16-static[ 76%] Built target strtest[ 77%] Built target cjpeg12-static[ 79%] Built target cjpeg-static[ 80%] Built target wrjpgcom[ 81%] Built target tjbench[ 81%] Built target cjpeg12[ 81%] Built target cjpeg16[ 93%] Built target jpeg[ 94%] Built target cjpeg[ 94%] Built target djpeg16[ 94%] Built target djpeg12[ 96%] Built target djpeg[ 97%] Built target jpegtran[ 98%] Built target example[ 99%] Built target jcstest[100%] Built target md5cmpInstall the project...-- Install configuration: "Release"-- Installing: /opt/libjpeg-turbo/lib64/libturbojpeg.so.0.3.0-- Installing: /opt/libjpeg-turbo/lib64/libturbojpeg.so.0-- Set runtime path of "/opt/libjpeg-turbo/lib64/libturbojpeg.so.0.3.0" to "/opt/libjpeg-turbo/lib64"-- Installing: /opt/libjpeg-turbo/lib64/libturbojpeg.so-- Installing: /opt/libjpeg-turbo/bin/tjbench-- Set runtime path of "/opt/libjpeg-turbo/bin/tjbench" to "/opt/libjpeg-turbo/lib64"-- Installing: /opt/libjpeg-turbo/lib64/libturbojpeg.a-- Installing: /opt/libjpeg-turbo/include/turbojpeg.h-- Installing: /opt/libjpeg-turbo/lib64/libjpeg.a-- Installing: /opt/libjpeg-turbo/bin/rdjpgcom-- Set runtime path of "/opt/libjpeg-turbo/bin/rdjpgcom" to "/opt/libjpeg-turbo/lib64"-- Installing: /opt/libjpeg-turbo/bin/wrjpgcom-- Set runtime path of "/opt/libjpeg-turbo/bin/wrjpgcom" to "/opt/libjpeg-turbo/lib64"-- Installing: /opt/libjpeg-turbo/doc/README.ijg-- Installing: /opt/libjpeg-turbo/doc/README.md-- Installing: /opt/libjpeg-turbo/doc/example.c-- Installing: /opt/libjpeg-turbo/doc/tjexample.c-- Installing: /opt/libjpeg-turbo/doc/libjpeg.txt-- Installing: /opt/libjpeg-turbo/doc/structure.txt-- Installing: /opt/libjpeg-turbo/doc/usage.txt-- Installing: /opt/libjpeg-turbo/doc/wizard.txt-- Installing: /opt/libjpeg-turbo/doc/LICENSE.md-- Installing: /opt/libjpeg-turbo/man/man1/cjpeg.1-- Installing: /opt/libjpeg-turbo/man/man1/djpeg.1-- Installing: /opt/libjpeg-turbo/man/man1/jpegtran.1-- Installing: /opt/libjpeg-turbo/man/man1/rdjpgcom.1-- Installing: /opt/libjpeg-turbo/man/man1/wrjpgcom.1-- Installing: /opt/libjpeg-turbo/lib64/pkgconfig/libjpeg.pc-- Installing: /opt/libjpeg-turbo/lib64/pkgconfig/libturbojpeg.pc-- Installing: /opt/libjpeg-turbo/lib64/cmake/libjpeg-turbo/libjpeg-turboConfig.cmake-- Installing: /opt/libjpeg-turbo/lib64/cmake/libjpeg-turbo/libjpeg-turboConfigVersion.cmake-- Installing: /opt/libjpeg-turbo/lib64/cmake/libjpeg-turbo/libjpeg-turboTargets.cmake-- Installing: /opt/libjpeg-turbo/lib64/cmake/libjpeg-turbo/libjpeg-turboTargets-release.cmake-- Installing: /opt/libjpeg-turbo/include/jconfig.h-- Installing: /opt/libjpeg-turbo/include/jerror.h-- Installing: /opt/libjpeg-turbo/include/jmorecfg.h-- Installing: /opt/libjpeg-turbo/include/jpeglib.h-- Installing: /opt/libjpeg-turbo/lib64/libjpeg.so.62.4.0-- Installing: /opt/libjpeg-turbo/lib64/libjpeg.so.62-- Set runtime path of "/opt/libjpeg-turbo/lib64/libjpeg.so.62.4.0" to "/opt/libjpeg-turbo/lib64"-- Installing: /opt/libjpeg-turbo/lib64/libjpeg.so-- Installing: /opt/libjpeg-turbo/bin/cjpeg-- Set runtime path of "/opt/libjpeg-turbo/bin/cjpeg" to "/opt/libjpeg-turbo/lib64"-- Installing: /opt/libjpeg-turbo/bin/djpeg-- Set runtime path of "/opt/libjpeg-turbo/bin/djpeg" to "/opt/libjpeg-turbo/lib64"-- Installing: /opt/libjpeg-turbo/bin/jpegtran-- Set runtime path of "/opt/libjpeg-turbo/bin/jpegtran" to "/opt/libjpeg-turbo/lib64"

Running tests...Test project /home/lhj/libjpeg-turbo/build        Start   1: tjunittest-shared  1/590 Test   #1: tjunittest-shared ...................................   Passed    3.48 sec        Start   2: tjunittest-shared-alloc  2/590 Test   #2: tjunittest-shared-alloc .............................   Passed    3.48 sec......        Start 590: example-12bit-static-decompress-cmp590/590 Test #590: example-12bit-static-decompress-cmp .................   Passed    0.00 sec
100% tests passed, 0 tests failed out of 590
Total Test time (real) =  79.40 sec

#include #include #include #include #include #include #include 
/* Y = 0.298R + 0.612G + 0.117B;   [13,235] U = -0.168R - 0.330G + 0.498B + 128; [16,239] V = 0.449R - 0.435G - 0.083B + 128; [16,239]*/uint8_t* yuv422p(uint32_t w, uint32_t h, uint32_t color){    uint8_t* p = (uint8_t*)malloc(w*h*2);    uint8_t* ret = p;    if(p == NULL)    {        return NULL;    }
    int y = 0;    int u = 0;    int v = 0;    uint8_t r = 0;    uint8_t g = 0;    uint8_t b = 0;    r = (color >> 16) & 0xFF;    g = (color >> 8) & 0xFF;    b = (color >> 0) & 0xFF;    y = (0.298*r + 0.612*g + 0.117*b);    u = (-0.168*r - 0.330*g + 0.498*b + 128);    v = (0.449*r - 0.435*g - 0.083*b + 128);    if(y>235)    {        y=235;    }    if(y<16)    {        y=16;    }    if(u>239)    {        u=239;    }    if(u<16)    {        u=16;    }    if(v>239)    {        v=239;    }    if(v<16)    {        v=16;    }    for(int i=0;i    {        *p++ = y;    }    for(int i=0;i2;i++)    {        *p++ = u;    }    for(int i=0;i2;i++)    {        *p++ = v;    }    return ret;}
/*写内存到文件*/void write_buffer2file(char *filename, uint8_t *buffer, int size){  FILE *fd = fopen(filename,"wb");  if (NULL == fd) {    return;  }  fwrite(buffer,1,size,fd);  fclose(fd);}
int tyuv2jpeg(unsigned char* yuv_buffer, int yuv_size, int width, int height, int subsample, unsigned char** jpeg_buffer, unsigned long* jpeg_size, int quality,char *name){    tjhandle handle = NULL;    int flags = 0;    int padding = 16; // 1或4均可，但不能是0    int need_size = 0;    int ret = 0;     handle = tjInitCompress();       flags |= 0;     need_size = tjBufSizeYUV2(width, padding, height, subsample);    if (need_size != yuv_size)    {        printf("we detect yuv size: %d, but you give: %d, check again.\n", need_size, yuv_size);        return 0;    }     ret = tjCompressFromYUV(handle, yuv_buffer, width, padding, height, subsample, jpeg_buffer, jpeg_size, quality, flags);    if (ret < 0)    {        printf("compress to jpeg failed: %s\n", tjGetErrorStr());    }    write_buffer2file(name,*jpeg_buffer,*jpeg_size);    tjDestroy(handle);     return ret;}
int main(){    unsigned long jpeg_size;    unsigned char* yuv_buffer;    unsigned char* jpeg_buffer;    yuv_buffer = yuv422p(800, 480, 0xFFFF00);    tyuv2jpeg(yuv_buffer, 800*480*2, 800, 480, TJSAMP_422, &jpeg_buffer, &jpeg_size, 90, "out.jpg");    free(yuv_buffer);}