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Look at version_major.h when for newer ffmpeg libs

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In ffmpeg 5.1, it seems most (or all) of these libraries use a separate
version_major.h, so the logic to check minimum version didn't work
without looking at the major version file.
This commit is contained in:
Ian Chamberlain 2022-08-20 20:35:45 -04:00
parent 58d0705f0f
commit a90b0daebe
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4
externals/cmake-modules/FindFFmpeg.cmake vendored
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@ -116,6 +116,10 @@ function(find_ffmpeg LIBNAME)
endforeach()
string(TOUPPER ${LIBNAME} LIBNAME_UPPER)
file(STRINGS "${FFmpeg_INCLUDE_${LIBNAME}}/lib${LIBNAME}/version.h" _FFmpeg_VERSION_H_CONTENTS REGEX "#define LIB${LIBNAME_UPPER}_VERSION_(MAJOR|MINOR|MICRO) ")
if (EXISTS "${FFmpeg_INCLUDE_${LIBNAME}}/lib${LIBNAME}/version_major.h")
file(STRINGS "${FFmpeg_INCLUDE_${LIBNAME}}/lib${LIBNAME}/version_major.h" _FFmpeg_MAJOR_VERSION_H_CONTENTS REGEX "#define LIB${LIBNAME_UPPER}_VERSION_MAJOR ")
string(APPEND _FFmpeg_VERSION_H_CONTENTS "\n" ${_FFmpeg_MAJOR_VERSION_H_CONTENTS})
endif()
set(_FFmpeg_VERSION_REGEX "([0-9]+)")
foreach(v MAJOR MINOR MICRO)
if("${_FFmpeg_VERSION_H_CONTENTS}" MATCHES "#define LIB${LIBNAME_UPPER}_VERSION_${v}[\\t ]+${_FFmpeg_VERSION_REGEX}")