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{ stdenv
, lib
, fetchFromGitLab
, fetchpatch
, nasm
, enableShared ? !stdenv.hostPlatform.isStatic
}:
stdenv.mkDerivation rec {
pname = "x264";
version = "unstable-2021-06-13";
src = fetchFromGitLab {
domain = "code.videolan.org";
owner = "videolan";
repo = pname;
rev = "5db6aa6cab1b146e07b60cc1736a01f21da01154";
sha256 = "0swyrkz6nvajivxvrr08py0jrfcsjvpxw78xm1k5gd9xbdrxvknh";
};
# Upstream ./configure greps for (-mcpu|-march|-mfpu) in CFLAGS, which in nix
# is put in the cc wrapper anyway.
patches = [
./disable-arm-neon-default.patch
(fetchpatch {
# https://code.videolan.org/videolan/x264/-/merge_requests/114
name = "fix-parallelism.patch";
url = "https://code.videolan.org/videolan/x264/-/commit/e067ab0b530395f90b578f6d05ab0a225e2efdf9.patch";
hash = "sha256-16h2IUCRjYlKI2RXYq8QyXukAdfoQxyBKsK/nI6vhRI=";
})
];
postPatch = ''
patchShebangs .
''
# Darwin uses `llvm-strip`, which results in a crash at runtime in assembly-based routines when `-x` is specified.
+ lib.optionalString stdenv.isDarwin ''
substituteInPlace Makefile --replace '$(if $(STRIP), $(STRIP) -x $@)' '$(if $(STRIP), $(STRIP) -S $@)'
'';
enableParallelBuilding = true;
outputs = [ "out" "lib" "dev" ];
preConfigure = lib.optionalString stdenv.hostPlatform.isx86 ''
# `AS' is set to the binutils assembler, but we need nasm
unset AS
'' + lib.optionalString stdenv.hostPlatform.isAarch ''
export AS=$CC
'';
configureFlags = lib.optional enableShared "--enable-shared"
++ lib.optional (!stdenv.isi686) "--enable-pic"
++ lib.optional (stdenv.buildPlatform != stdenv.hostPlatform) "--cross-prefix=${stdenv.cc.targetPrefix}";
nativeBuildInputs = lib.optional stdenv.hostPlatform.isx86 nasm;
meta = with lib; {
description = "Library for encoding H264/AVC video streams";
homepage = "http://www.videolan.org/developers/x264.html";
license = licenses.gpl2Plus;
platforms = platforms.unix ++ platforms.windows;
maintainers = with maintainers; [ tadeokondrak ];
};
}
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