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gnu: audacity: Add fallback to locate ffmpeg via pkg-config.

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* gnu/packages/patches/audacity-ffmpeg-fallback.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it here.
* gnu/packages/audio.scm (audacity)[patches]: Use it here.
[inputs]: Add back ffmpeg.
This commit is contained in:
Liliana Marie Prikler 2022-01-29 18:54:54 +01:00
parent 090e925816
commit 6589966b97
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GPG key ID: 442A84B8C70E2F87
3 changed files with 69 additions and 0 deletions
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1
gnu/local.mk
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@ -859,6 +859,7 @@ dist_patch_DATA = \
%D%/packages/patches/ath9k-htc-firmware-gcc-compat.patch \
%D%/packages/patches/ath9k-htc-firmware-objcopy.patch \
%D%/packages/patches/atlas-gfortran-compat.patch \
%D%/packages/patches/audacity-ffmpeg-fallback.patch \
%D%/packages/patches/audiofile-fix-datatypes-in-tests.patch \
%D%/packages/patches/audiofile-fix-sign-conversion.patch \
%D%/packages/patches/audiofile-CVE-2015-7747.patch \

2
gnu/packages/audio.scm
View file

@ -738,6 +738,7 @@ (define-public audacity
(sha256
(base32
"189agx11361k9j958s6q5bngnnfx0rwaf0dwbjxy6fwvsb1wv3px"))
(patches (search-patches "audacity-ffmpeg-fallback.patch"))
(modules '((guix build utils)))
(snippet
;; Remove bundled libraries.
@ -768,6 +769,7 @@ (define-public audacity
lame
linux-libre-headers
flac
ffmpeg
libid3tag
libjpeg-turbo
libmad

66
gnu/packages/patches/audacity-ffmpeg-fallback.patch Normal file
View file

@ -0,0 +1,66 @@
From 3c20057d0cbbbed453a692d4dd4589d865808024 Mon Sep 17 00:00:00 2001
From: Liliana Marie Prikler <liliana.prikler@gmail.com>
Date: Sat, 29 Jan 2022 10:44:44 +0100
Subject: [PATCH] Add pkg-config fallback for locating ffmpeg.
Audacity >=3.1.0 no longer links against ffmpeg, but instead dynamically loads
it. This dynamic loading mechanism fails to properly locate libraries outside
of LD_LIBRARY_PATH.
See <https://issues.guix.gnu.org/53591>.
---
libraries/lib-ffmpeg-support/CMakeLists.txt | 8 ++++++++
libraries/lib-ffmpeg-support/FFmpegFunctions.cpp | 12 ++++++++++++
2 files changed, 20 insertions(+)
diff --git a/libraries/lib-ffmpeg-support/CMakeLists.txt b/libraries/lib-ffmpeg-support/CMakeLists.txt
index 8c5f06d7c..00810e4d0 100644
--- a/libraries/lib-ffmpeg-support/CMakeLists.txt
+++ b/libraries/lib-ffmpeg-support/CMakeLists.txt
@@ -1,5 +1,7 @@
if (${_OPT}use_ffmpeg)
+ pkg_check_modules(FFMPEG libavcodec libavformat libavutil)
+
set( SOURCES
FFmpegTypes.h
@@ -100,6 +102,12 @@ if (${_OPT}use_ffmpeg)
list(APPEND DEFINITIONS PRIVATE _DARWIN_C_SOURCE )
endif()
+ if (FFMPEG_FOUND)
+ pkg_get_variable(LIBAVCODEC_LIBDIR libavcodec libdir)
+ list(APPEND DEFINITIONS PRIVATE
+ "-DFFMPEG_PC_LIBDIR=L\"${LIBAVCODEC_LIBDIR}\"")
+ endif()
+
audacity_library( lib-ffmpeg-support "${SOURCES}" "${LIBRARIES}"
"${DEFINITIONS}" ""
)
diff --git a/libraries/lib-ffmpeg-support/FFmpegFunctions.cpp b/libraries/lib-ffmpeg-support/FFmpegFunctions.cpp
index 66d085a0b..4eeb4aed3 100644
--- a/libraries/lib-ffmpeg-support/FFmpegFunctions.cpp
+++ b/libraries/lib-ffmpeg-support/FFmpegFunctions.cpp
@@ -238,6 +238,18 @@ struct FFmpegFunctions::Private final
if (library->IsLoaded())
return library;
+#if defined(FFMPEG_PC_LIBDIR)
+ {
+ static const wxString libdir{FFMPEG_PC_LIBDIR};
+ const wxString fullName = wxFileName(libdir, libraryName).GetFullPath();
+
+ auto library = std::make_shared<wxDynamicLibrary>(fullName);
+
+ if (library->IsLoaded())
+ return library;
+ }
+#endif
+
// Loading has failed.
// wxLogSysError doesn't report errors correctly on *NIX
#if defined(_WIN32)
--
2.34.0