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Merge pull request #621 from TheCycoONE/libavresample
Support playing movies with libav and fix ffmpeg audio stutter
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| # vim: ts=2 sw=2 | ||
| # - Try to find the required libav components(default: AVFORMAT, AVUTIL, AVCODEC) | ||
| # | ||
| # Once done this will define | ||
| # LIBAV_FOUND - System has the all required components. | ||
| # LIBAV_INCLUDE_DIRS - Include directory necessary for using the required components headers. | ||
| # LIBAV_LIBRARIES - Link these to use the required libav components. | ||
| # LIBAV_DEFINITIONS - Compiler switches required for using the required libav components. | ||
| # | ||
| # For each of the components it will additionally set. | ||
| # - AVCODEC | ||
| # - AVDEVICE | ||
| # - AVFILTER | ||
| # - AVFORMAT | ||
| # - AVRESAMPLE | ||
| # - AVUTIL | ||
| # - SWSCALE | ||
| # the following variables will be defined | ||
| # <component>_FOUND - System has <component> | ||
| # <component>_INCLUDE_DIRS - Include directory necessary for using the <component> headers | ||
| # <component>_LIBRARIES - Link these to use <component> | ||
| # <component>_DEFINITIONS - Compiler switches required for using <component> | ||
| # <component>_VERSION - The components version | ||
| # | ||
| # Copyright (c) 2006, Matthias Kretz, <kretz@kde.org> | ||
| # Copyright (c) 2008, Alexander Neundorf, <neundorf@kde.org> | ||
| # Copyright (c) 2011, Michael Jansen, <kde@michael-jansen.biz> | ||
| # Copyright (c) 2013,2015 Stephen Baker <baker.stephen.e@gmail.com> | ||
| # | ||
| # Redistribution and use is allowed according to the terms of the BSD license. | ||
| # For details see the accompanying COPYING-CMAKE-SCRIPTS file. | ||
|
|
||
| include(FindPackageHandleStandardArgs) | ||
|
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| # The default components were taken from a survey over other FindLIBAV.cmake files | ||
| if (NOT LibAV_FIND_COMPONENTS) | ||
| set(LibAV_FIND_COMPONENTS AVCODEC AVFORMAT AVUTIL) | ||
| endif () | ||
|
|
||
| # | ||
| ### Macro: set_component_found | ||
| # | ||
| # Marks the given component as found if both *_LIBRARIES AND *_INCLUDE_DIRS is present. | ||
| # | ||
| macro(set_component_found _component ) | ||
| if (${_component}_LIBRARIES AND ${_component}_INCLUDE_DIRS) | ||
| # message(STATUS " - ${_component} found.") | ||
| set(${_component}_FOUND TRUE) | ||
| else () | ||
| # message(STATUS " - ${_component} not found.") | ||
| endif () | ||
| endmacro() | ||
|
|
||
| # | ||
| ### Macro: find_component | ||
| # | ||
| # Checks for the given component by invoking pkgconfig and then looking up the libraries and | ||
| # include directories. | ||
| # | ||
| macro(find_component _component _pkgconfig _library _header) | ||
|
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||
| if (NOT WIN32) | ||
| # use pkg-config to get the directories and then use these values | ||
| # in the FIND_PATH() and FIND_LIBRARY() calls | ||
| find_package(PkgConfig) | ||
| if (PKG_CONFIG_FOUND) | ||
| pkg_check_modules(PC_${_component} ${_pkgconfig}) | ||
| endif () | ||
| endif (NOT WIN32) | ||
|
|
||
| find_path(${_component}_INCLUDE_DIRS ${_header} | ||
| HINTS | ||
| ${PC_LIB${_component}_INCLUDEDIR} | ||
| ${PC_LIB${_component}_INCLUDE_DIRS} | ||
| PATH_SUFFIXES | ||
| libav | ||
| ) | ||
|
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||
| find_library(${_component}_LIBRARIES NAMES ${_library} | ||
| HINTS | ||
| ${PC_LIB${_component}_LIBDIR} | ||
| ${PC_LIB${_component}_LIBRARY_DIRS} | ||
| ) | ||
|
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||
| set(${_component}_DEFINITIONS ${PC_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS.") | ||
| set(${_component}_VERSION ${PC_${_component}_VERSION} CACHE STRING "The ${_component} version number.") | ||
|
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| set_component_found(${_component}) | ||
|
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| endmacro() | ||
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| # Check for cached results. If there are skip the costly part. | ||
| if (NOT LIBAV_LIBRARIES) | ||
|
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| # Check for all possible component. | ||
| find_component(AVCODEC libavcodec avcodec libavcodec/avcodec.h) | ||
| find_component(AVFORMAT libavformat avformat libavformat/avformat.h) | ||
| find_component(AVDEVICE libavdevice avdevice libavdevice/avdevice.h) | ||
| find_component(AVFILTER libavfilter avfilter libavfilter/avfilter.h) | ||
| find_component(AVRESAMPLE libavresample avresample libavresample/avresample.h) | ||
| find_component(AVUTIL libavutil avutil libavutil/avutil.h) | ||
| find_component(SWSCALE libswscale swscale libswscale/swscale.h) | ||
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| # Check if the required components were found and add their stuff to the LIBAV_* vars. | ||
| foreach (_component ${LibAV_FIND_COMPONENTS}) | ||
| if (${_component}_FOUND) | ||
| # message(STATUS "Required component ${_component} present.") | ||
| set(LIBAV_LIBRARIES ${LIBAV_LIBRARIES} ${${_component}_LIBRARIES}) | ||
| set(LIBAV_DEFINITIONS ${LIBAV_DEFINITIONS} ${${_component}_DEFINITIONS}) | ||
| list(APPEND LIBAV_INCLUDE_DIRS ${${_component}_INCLUDE_DIRS}) | ||
| else () | ||
| # message(STATUS "Required component ${_component} missing.") | ||
| endif () | ||
| endforeach () | ||
|
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||
| # Build the include path with duplicates removed. | ||
| if (LIBAV_INCLUDE_DIRS) | ||
| list(REMOVE_DUPLICATES LIBAV_INCLUDE_DIRS) | ||
| endif () | ||
|
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| # cache the vars. | ||
| set(LIBAV_INCLUDE_DIRS ${LIBAV_INCLUDE_DIRS} CACHE STRING "The LibAV include directories." FORCE) | ||
| set(LIBAV_LIBRARIES ${LIBAV_LIBRARIES} CACHE STRING "The LibAV libraries." FORCE) | ||
| set(LIBAV_DEFINITIONS ${LIBAV_DEFINITIONS} CACHE STRING "The LibAV cflags." FORCE) | ||
|
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| mark_as_advanced(LIBAV_INCLUDE_DIRS | ||
| LIBAV_LIBRARIES | ||
| LIBAV_DEFINITIONS) | ||
|
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| endif () | ||
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| # Now set the noncached _FOUND vars for the components. | ||
| foreach (_component AVCODEC AVDEVICE AVFILTER AVFORMAT AVRESAMPLE AVUTIL SWSCALE) | ||
| set_component_found(${_component}) | ||
| endforeach () | ||
|
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||
| # Compile the list of required vars | ||
| set(_LibAV_REQUIRED_VARS LIBAV_LIBRARIES LIBAV_INCLUDE_DIRS) | ||
| foreach (_component ${LibAV_FIND_COMPONENTS}) | ||
| list(APPEND _LibAV_REQUIRED_VARS ${_component}_LIBRARIES ${_component}_INCLUDE_DIRS) | ||
| endforeach () | ||
|
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| # Give a nice error message if some of the required vars are missing. | ||
| find_package_handle_standard_args(LibAV DEFAULT_MSG ${_LibAV_REQUIRED_VARS}) |
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