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70 lines
1.9 KiB
70 lines
1.9 KiB
#!/usr/bin/env bash
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# Script to download FFmpeg's source code
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# Relies on FFMPEG_SOURCE_TYPE and FFMPEG_SOURCE_VALUE variables
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# to choose the valid origin and version
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# Exports SOURCES_DIR_ffmpeg - path where actual sources are stored
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# Getting sources of a particular FFmpeg release.
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# Same argument (FFmpeg version) produces the same source set.
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function ensureSourcesTar() {
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FFMPEG_SOURCES=ffmpeg-${FFMPEG_SOURCE_VALUE}
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if [[ ! -d "$FFMPEG_SOURCES" ]]; then
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TARGET_FILE_NAME=ffmpeg-${FFMPEG_SOURCE_VALUE}.tar.bz2
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curl https://www.ffmpeg.org/releases/${TARGET_FILE_NAME} --output ${TARGET_FILE_NAME}
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tar xf ${TARGET_FILE_NAME} -C .
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rm ${TARGET_FILE_NAME}
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fi
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export SOURCES_DIR_ffmpeg=$(pwd)/${FFMPEG_SOURCES}
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}
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# Getting sources of a particular branch or a tag of FFmpeg's git repository.
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# Same branch name may produce different source set,
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# as the branch in origin repository may be updated in future.
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# Git tags lead to stable states of the source code.
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function ensureSourcesGit() {
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NAME_TO_CHECKOUT=${FFMPEG_SOURCE_VALUE}
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GIT_DIRECTORY=ffmpeg-git
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FFMPEG_SOURCES=$(pwd)/${GIT_DIRECTORY}
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if [[ ! -d "$FFMPEG_SOURCES" ]]; then
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git clone https://git.ffmpeg.org/ffmpeg.git ${GIT_DIRECTORY}
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fi
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cd ${GIT_DIRECTORY}
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git reset --hard
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git checkout $NAME_TO_CHECKOUT
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if [ ${FFMPEG_SOURCE_TYPE} = "GIT_BRANCH" ]; then
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# Forcing the update of a branch
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git pull origin $BRANCH
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fi
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# Additional logging to keep track of an exact commit to build
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echo "Commit to build:"
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git rev-parse HEAD
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export SOURCES_DIR_ffmpeg=${FFMPEG_SOURCES}
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}
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# Actual code
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case ${FFMPEG_SOURCE_TYPE} in
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GIT_TAG)
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echo "Using FFmpeg git tag: ${FFMPEG_SOURCE_VALUE}"
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ensureSourcesGit
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;;
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GIT_BRANCH)
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echo "Using FFmpeg git repository and its branch: ${FFMPEG_SOURCE_VALUE}"
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ensureSourcesGit
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;;
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TAR)
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echo "Using FFmpeg source archive: ${FFMPEG_SOURCE_VALUE}"
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ensureSourcesTar
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;;
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esac
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