ASR项目实战-构建Kaldi

准备工作

安装构建时依赖的基础软件

软件清单如下：

• bzip2
• python3
• automake
• libtool
• cmake
• gcc
• g++
• gfortran
• git
• subversion

不同平台安装软件的方式不同，比如可以使用yum或者apt-get等。

下载开源软件

软件清单如下：

• Libunwind
• glog
• OpenFST
• OpenBLAS
• Kaldi

按照一定的规则，将下载后的文件放在指定目录，如下是样例

opensrc
    glog
        glog-0.4.0.zip
    Libunwind
        libunwind-1.3.1-src.zip
    Kaldi
        kaldi-master.zip
    OpenFST
        openfst-1.6.7.tar.gz
    OpenBLAS
        OpenBLAS-0.3.6.tar.gz
install
    usr
        local
            bin
            sbin
            include
            lib
            lib64
script
    build.sh

构建脚本

build.sh的内容，如下为样例：

BUILD_CORE_NUM=8
SCRIPT_FILE=`readlink -f $0`
SCRIPT_ROOT=`dir ${SCRIPT_FILE}`
BUILD_ROOT=`dir ${SCRIPT_ROOT}`
SOURCE_ROOT=${BUILD_ROOT}/opensrc

INSTALL_ROOT=${BUILD_ROOT}/install/usr/local
export INSTALL_ROOT
PATH=${INSTALL_ROOT}/bin:${INSTALL_ROOT}/sbin:${PATH}
export PATH
LD_LIBRARY_PATH=${INSTALL_ROOT}/lib:${INSTALL_ROOT}/lib64:${LD_LIBRARY_PATH}
export LD_LIBRARY_PATH

# Libunwind
VERSION=1.3.1
BUILD_LOG=${SCRIPT_ROOT}/Libunwind.out

rm -f ${BUILD_LOG}
touch ${BUILD_LOG}
cd ${SOURCE_ROOT}/Libunwind
rm -rf libunwind-${VERSION}
unzip -o libunwind-${VERSION}-src.zip
tar vxfz libunwind-${VERSION}.tar.gz
cd libunwind-${VERSION}
./autogen.sh
CFLAGS="-fPIC -I${INSTALL_ROOT}/include" \
    ./configure \
      >> ${BUILD_LOG} 2>&1
make -j${BUILD_CORE_NUM} >> ${BUILD_LOG} 2>&1
make install prefix=${INSTALL_ROOT} >> ${BUILD_LOG} 2>&1

# glog
VERSION=0.4.0
BUILD_LOG=${SCRIPT_ROOT}/glog.out

rm -f ${BUILD_LOG}
touch ${BUILD_LOG}
cd ${SOURCE_ROOT}/glog
rm -rf glog-${VERSION}
tar vxfz glog-${VERSION}.tar.gz
cd glog-${VERSION}
./autogen.sh
CXXFLAGS="-fPIC -I${INSTALL_ROOT}/include" \
    LDFLAGS="-L${INSTALL_ROOT}/lib -L${INSTALL_ROOT}/lib64" \
    ./configure \
    --prefix=${INSTALL_ROOT} \
    >> ${BUILD_LOG} 2>&1
make -j${BUILD_CORE_NUM} >> ${BUILD_LOG} 2>&1
make install >> ${BUILD_LOG} 2>&1

# OpenBLAS
VERSION=0.3.6
BUILD_LOG=${SCRIPT_ROOT}/OpenBLAS.out

rm -f ${BUILD_LOG}
touch ${BUILD_LOG}
cd ${SOURCE_ROOT}/OpenBLAS
rm -rf OpenBLAS-${VERSION}
rm -f OpenBLAS
tar vxfz OpenBLAS-${VERSION}.tar.gz
ln -s OpenBLAS-${VERSION} OpenBLAS
cd OpenBLAS-${VERSION}
make -j${BUILD_CORE_NUM} >> ${BUILD_LOG} 2>&1
make PREFIX=${INSTALL_ROOT} install >> ${BUILD_LOG} 2>&1

# OpenFST
VERSION=1.6.7
BUILD_LOG=${SCRIPT_ROOT}/OpenFST.out

rm -f ${BUILD_LOG}
touch ${BUILD_LOG}
cd ${SOURCE_ROOT}/OpenFST
rm -rf openfst-${VERSION}
tar vxzf openfst-${VERSION}.tar.gz
cd openfst-${VERSION}
CXXFLAGS="-fPIC -I${INSTALL_ROOT}/include" \
    CFLAGS="-fPIC -I${INSTALL_ROOT}/include" \
    LDFLAGS="-L${INSTALL_ROOT}/lib -L${INSTALL_ROOT}/lib64" \
    LIBS="${INSTALL_ROOT}/lib/libglog.a -pthread -lunwind" \
    ./configure \
    --enable-static \
    --enable-shared \
    --enable-far \
    --enable-ngram-fsts \
    --prefix=${INSTALL_ROOT} \
    >> ${BUILD_LOG} 2>&1
make -j${BUILD_CORE_NUM} >> ${BUILD_LOG} 2>&1
make install >> ${BUILD_LOG} 2>&1

# Kaldi
VERSION=master
BUILD_LOG=${SCRIPT_ROOT}/Kaldi.out

rm -f ${BUILD_LOG}
touch ${BUILD_LOG}
cd ${SOURCE_ROOT}/Kaldi
rm -rf kaldi-${VERSION}.zip
rm -f kaldi
unzip kaldi-${VERSION}.zip
cd kaldi-${VERSION}/src
CXXFLAGS="-fPIC -I${INSTALL_ROOT}/include" \
    ./configure \
    --static \
    --openblas-root=${INSTALL_ROOT} \
    --static-math=yes \
    --threaded-math=yes \
    --static-fst=yes \
    --fst-version=1.6.7 \
    --fst-root=${INSTALL_ROOT} \
    --use-cuda=no \
    >> ${BUILD_LOG} 2>&1
make clean -j${BUILD_CORE_NUM} >> ${BUILD_LOG} 2>&1
make depend -j${BUILD_CORE_NUM} >> ${BUILD_LOG} 2>&1
make -j${BUILD_CORE_NUM} >> ${BUILD_LOG} 2>&1

注意事项

OpenFST自身实现一套日志系统，与glog集成时会报符号冲突。当前有用户在官网上提出类似的问题，但没有官方的答复。为了完整利用glog的能力，需要对OpenFST的实现做一定的修改。

修改点主要涉及如下几个文件：

• src/include/log.h，删除代码中相关的类和变量的定义。

  #include <fst/types.h>
  #include <fst/lock.h>
  
  using std::string;
  // 删除中间出现的代码
  #define ATTRIBUTE_DEPRECATED __attribute__((deprecated))
  
  #endif
  

• src/include/flags.h，在头部引入glog的头文件，增加如下代码：

  #include <fst/types.h>
  #include <fst/lock.h>
  #include "glog/logging.h"  // 引入glog的头文件
  using std::string;
  

• src/lib/flags.cc，删除同名的变量。

  // DEFINE_int32(v, 0, "verbosity level");