ffmpeg/version.sh
Michael Niedermayer 8ea36711b0 Merge remote-tracking branch 'newdev/master'
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Not Pulled:
    commit 42cfb3835b
    Author: Mans Rullgard <mans@mansr.com>
    Date:   Mon Feb 28 18:06:58 2011 +0000

        Remove Sonic experimental audio codec

    commit 2912e87a6c
    Author: Mans Rullgard <mans@mansr.com>
    Date:   Fri Mar 18 17:35:10 2011 +0000

        Replace FFmpeg with Libav in licence headers
2011-03-19 20:05:11 +01:00

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#!/bin/sh
# check for git short hash
if ! test "$revision"; then
revision=$(cd "$1" && git describe --tags --match N 2> /dev/null)
test "$revision" && revision=git-$revision
fi
# no revision number found
test "$revision" || revision=UNKNOWN
# releases extract the version number from the VERSION file
version=$(cd "$1" && cat VERSION 2> /dev/null)
test "$version" || version=$revision
test -n "$3" && version=$version-$3
if [ -z "$2" ]; then
echo "$version"
exit
fi
NEW_REVISION="#define FFMPEG_VERSION \"$version\""
OLD_REVISION=$(cat version.h 2> /dev/null)
# Update version.h only on revision changes to avoid spurious rebuilds
if test "$NEW_REVISION" != "$OLD_REVISION"; then
echo "$NEW_REVISION" > "$2"
fi