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build: check libavcodec api version

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If pkg-config is available libavcodec api version is checked and
cmake fails if the required version isn't available.

In case pkg-config isn't available a notification message with the
required version is printed.

This fixes/prevents #740.
This commit is contained in:
Bernhard Miklautz 2012-09-26 15:45:30 +02:00 committed by Alam Arias
parent 74b74cc482
commit e004f45968
1 changed files with 11 additions and 0 deletions
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11
cmake/FindFFmpeg.cmake
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@ -5,6 +5,9 @@
# FFMPEG_INCLUDE_DIRS - combined include directories
# FFMPEG_LIBRARIES - combined libraries to link
set(REQUIRED_AVCODEC_VERSION 0.8)
set(REQUIRED_AVCODEC_API_VERSION 53.25.0)
include(FindPkgConfig)
if(PKG_CONFIG_FOUND)
@ -31,6 +34,14 @@ endif()
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(FFmpeg DEFAULT_MSG AVUTIL_FOUND AVCODEC_FOUND)
if (AVCODEC_VERSION)
if (${AVCODEC_VERSION} VERSION_LESS ${REQUIRED_AVCODEC_API_VERSION})
message(FATAL_ERROR "libavcodec version >= ${REQUIRED_AVCODEC_VERSION} (API >= ${REQUIRED_AVCODEC_API_VERSION}) is required")
endif()
else()
message("Note: To build libavcodec version >= ${REQUIRED_AVCODEC_VERSION} (API >= ${REQUIRED_AVCODEC_API_VERSION}) is required")
endif()
if(FFMPEG_FOUND)
set(FFMPEG_INCLUDE_DIRS ${AVCODEC_INCLUDE_DIR} ${AVUTIL_INCLUDE_DIR})
set(FFMPEG_LIBRARIES ${AVCODEC_LIBRARY} ${AVUTIL_LIBRARY})