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124 lines
4.2 KiB
124 lines
4.2 KiB
#!/usr/bin/env bash
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# Defining essential directories
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# The root of the project
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export BASE_DIR="$( cd "$( dirname "$0" )" && pwd )"
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# Directory that contains source code for FFmpeg and its dependencies
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# Each library has its own subdirectory
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# Multiple versions of the same library can be stored inside librarie's directory
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export SOURCES_DIR=${BASE_DIR}/sources
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# Directory to place some statistics about the build.
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# Currently - the info about Text Relocations
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export STATS_DIR=${BASE_DIR}/stats
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# Directory that contains helper scripts and
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# scripts to download and build FFmpeg and each dependency separated by subdirectories
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export SCRIPTS_DIR=${BASE_DIR}/scripts
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# The directory to use by Android project
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# All FFmpeg's libraries and headers are copied there
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export OUTPUT_DIR=${BASE_DIR}/output
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# Check the host machine for proper setup and fail fast otherwise
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${SCRIPTS_DIR}/check-host-machine.sh || exit 1
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# Directory to use as a place to build/install FFmpeg and its dependencies
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BUILD_DIR=${BASE_DIR}/build
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# Separate directory to build FFmpeg to
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export BUILD_DIR_FFMPEG=$BUILD_DIR/ffmpeg
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# All external libraries are installed to a single root
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# to make easier referencing them when FFmpeg is being built.
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export BUILD_DIR_EXTERNAL=$BUILD_DIR/external
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# Function that copies *.so files and headers of the current ANDROID_ABI
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# to the proper place inside OUTPUT_DIR
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function prepareOutput() {
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OUTPUT_LIB=${OUTPUT_DIR}/lib/${ANDROID_ABI}
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mkdir -p ${OUTPUT_LIB}
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cp ${BUILD_DIR_FFMPEG}/${ANDROID_ABI}/lib/*.so ${OUTPUT_LIB}
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OUTPUT_HEADERS=${OUTPUT_DIR}/include/${ANDROID_ABI}
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mkdir -p ${OUTPUT_HEADERS}
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cp -r ${BUILD_DIR_FFMPEG}/${ANDROID_ABI}/include/* ${OUTPUT_HEADERS}
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}
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# Saving stats about text relocation presence.
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# If the result file doesn't have 'TEXTREL' at all, then we are good.
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# Otherwise the whole script is interrupted
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function checkTextRelocations() {
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TEXT_REL_STATS_FILE=${STATS_DIR}/text-relocations.txt
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${FAM_READELF} --dynamic ${BUILD_DIR_FFMPEG}/${ANDROID_ABI}/lib/*.so | grep 'TEXTREL\|File' >> ${TEXT_REL_STATS_FILE}
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if grep -q TEXTREL ${TEXT_REL_STATS_FILE}; then
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echo "There are text relocations in output files:"
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cat ${TEXT_REL_STATS_FILE}
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exit 1
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fi
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}
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# Actual work of the script
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# Clearing previously created binaries
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rm -rf ${BUILD_DIR}
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rm -rf ${STATS_DIR}
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rm -rf ${OUTPUT_DIR}
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mkdir -p ${STATS_DIR}
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mkdir -p ${OUTPUT_DIR}
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# Exporting more necessary variabls
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source ${SCRIPTS_DIR}/export-host-variables.sh
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source ${SCRIPTS_DIR}/parse-arguments.sh
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# Treating FFmpeg as just a module to build after its dependencies
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COMPONENTS_TO_BUILD=${EXTERNAL_LIBRARIES[@]}
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COMPONENTS_TO_BUILD+=( "ffmpeg" )
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# Get the source code of component to build
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for COMPONENT in ${COMPONENTS_TO_BUILD[@]}
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do
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echo "Getting source code of the component: ${COMPONENT}"
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SOURCE_DIR_FOR_COMPONENT=${SOURCES_DIR}/${COMPONENT}
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mkdir -p ${SOURCE_DIR_FOR_COMPONENT}
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cd ${SOURCE_DIR_FOR_COMPONENT}
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# Executing the component-specific script for downloading the source code
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source ${SCRIPTS_DIR}/${COMPONENT}/download.sh
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# The download.sh script has to export SOURCES_DIR_$COMPONENT variable
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# with actual path of the source code. This is done for possiblity to switch
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# between different verions of a component.
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# If it isn't set, consider SOURCE_DIR_FOR_COMPONENT as the proper value
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COMPONENT_SOURCES_DIR_VARIABLE=SOURCES_DIR_${COMPONENT}
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if [[ -z "${!COMPONENT_SOURCES_DIR_VARIABLE}" ]]; then
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export SOURCES_DIR_${COMPONENT}=${SOURCE_DIR_FOR_COMPONENT}
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fi
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# Returning to the rood directory. Just in case.
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cd ${BASE_DIR}
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done
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# Main build loop
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for ABI in ${FFMPEG_ABIS_TO_BUILD[@]}
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do
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# Exporting variables for the current ABI
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source ${SCRIPTS_DIR}/export-build-variables.sh ${ABI}
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for COMPONENT in ${COMPONENTS_TO_BUILD[@]}
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do
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echo "Building the component: ${COMPONENT}"
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COMPONENT_SOURCES_DIR_VARIABLE=SOURCES_DIR_${COMPONENT}
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# Going to the actual source code directory of the current component
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cd ${!COMPONENT_SOURCES_DIR_VARIABLE}
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# and executing the component-specific build script
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source ${SCRIPTS_DIR}/${COMPONENT}/build.sh || exit 1
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# Returning to the root directory. Just in case.
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cd ${BASE_DIR}
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done
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checkTextRelocations || exit 1
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prepareOutput
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done
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