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Description: Modernize autotools FFmpeg linking
FFmpeg is a _family_ of libraries sharing an optional base subdir.
That is not properly reflected in the autoconf detection logic,
and makes it impossible to handle alternate location -
e.g. when using Libav.
.
This patch queries pkg-config, used with recent FFmpeg,
for files "libavcodec" and "libswscale",
the family members currently used.
Author: Jonas Smedegaard <dr@jones.dk>
Bug-Debian: https://bugs.debian.org/531728
Last-Update: 2022-01-22
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- a/configure.ac
+++ b/configure.ac
@@ -561,7 +561,7 @@
AST_EXT_LIB_SETUP_OPTIONAL([COROSYNC_CFG_STATE_TRACK], [A callback only in corosync 1.x], [COROSYNC], [cfg])
AST_EXT_LIB_SETUP([CRYPT], [password and data encryption], [crypt])
AST_EXT_LIB_SETUP([DAHDI], [DAHDI], [dahdi])
-AST_EXT_LIB_SETUP([FFMPEG], [Ffmpeg and avcodec], [avcodec])
+AST_EXT_LIB_SETUP([FFMPEG], [FFmpeg (avcodec and swscale)], [ffmpeg])
AST_EXT_LIB_SETUP([GSM], [External GSM], [gsm], [, use 'internal' GSM otherwise])
AST_EXT_LIB_SETUP([ILBC], [System iLBC], [ilbc], [, use 'internal' iLBC otherwise])
AST_EXT_LIB_SETUP([GTK2], [gtk2], [gtk2])
@@ -2832,7 +2832,18 @@
AST_EXT_TOOL_CHECK([SDL], [sdl-config])
AST_EXT_LIB_CHECK([SDL_IMAGE], [SDL_image], [IMG_Load], [SDL_image.h], [${SDL_LIB}], [${SDL_INCLUDE}])
-AST_EXT_LIB_CHECK([FFMPEG], [avcodec], [sws_getContext], [ffmpeg/avcodec.h], [${PTHREAD_LIBS} -lz -lm], [${PTHREAD_CFLAGS}])
+
+PBX_FFMPEG=0
+AC_CHECK_TOOL(PKGCONFIG, pkg-config, No)
+if test ! "x${PKGCONFIG}" = xNo; then
+ FFMPEG_INCLUDE=$(${PKGCONFIG} libavcodec libswscale --cflags 2>/dev/null)
+ FFMPEG_LIB=$(${PKGCONFIG} libavcodec libswscale --libs)
+ PBX_FFMPEG=1
+ AC_DEFINE([HAVE_FFMPEG], 1, [Define if your system has the FFmpeg libraries.])
+fi
+AC_SUBST(PBX_FFMPEG)
+AC_SUBST(FFMPEG_INCLUDE)
+AC_SUBST(FFMPEG_LIB)
# possible places for video4linux version 1
AC_CHECK_HEADER([linux/videodev.h],
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