给VLC打补丁, 使flac网络文件/流的Content-Type始终为"audio/flac", 以"修复"网易云音乐获取的flac网络文件Content-Type为"audio/mpeg"而导致VLC不能正确识别文件而播放失败的问题

lua53_compat.patch

commit 41caaa08cde60c4fec4bf2e5f9610e2a1b9e6a23
Author: Vinson Lee <vlee@freedesktop.org>
Date:   Thu Feb 5 14:48:53 2015 -0800

    lua: Define LUA_COMPAT_APIINTCASTS for Lua >= 5.3.0 compatibility.
    
    In Lua 5.3.0, luaL_checkint was deprecated.
    
    This patch fixes this build error with Lua 5.3.0.
    
    lua/demux.c: In function ‘vlclua_demux_peek’:
    lua/demux.c:55:5: error: implicit declaration of function ‘luaL_checkint’ [-Werror=implicit-function-declaration]
         int n = luaL_checkint( L, 1 );
         ^
    
    Signed-off-by: Vinson Lee <vlee@freedesktop.org>
    Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

diff --git a/modules/lua/vlc.h b/modules/lua/vlc.h
index efd94f1..85c7fc1 100644
--- a/modules/lua/vlc.h
+++ b/modules/lua/vlc.h
@@ -38,6 +38,7 @@
 #include <vlc_stream.h>
 #include <vlc_demux.h>
 
+#define LUA_COMPAT_APIINTCASTS
 #define LUA_COMPAT_MODULE
 #include <lua.h>        /* Low level lua C API */
 #include <lauxlib.h>    /* Higher level C API */

ncm.patch

diff --git a/modules/access/http/resource.c b/modules/access/http/resource.c
index 9a28bb50f3..4919cb3a05 100644
--- a/modules/access/http/resource.c
+++ b/modules/access/http/resource.c
@@ -315,6 +315,18 @@ char *vlc_http_res_get_type(struct vlc_http_resource *res)
     if (status < 200 || status >= 300)
         return NULL;
 
+    if(res->path){
+        char *suffix = "\0";
+        for(int i = (int) (strlen(res->path) - 1); i >= 0; --i){
+            if(res->path[i] == '.'){
+                suffix = res->path + i + 1;
+                break;
+            }
+        }
+        if(strcmp(suffix, "flac") == 0)
+            return strdup("audio/flac");
+    }
+
     const char *type = vlc_http_msg_get_header(res->response, "Content-Type");
     return (type != NULL) ? strdup(type) : NULL;
 }

PKGBUILD

# Maintainer: Levente Polyak <anthraxx[at]archlinux[dot]org>
# Contributor: Giovanni Scafora <giovanni@archlinux.org>
# Contributor: Sarah Hay <sarahhay@mb.sympatico.ca>
# Contributor: Martin Sandsmark <martin.sandsmark@kde.org>

pkgname=vlc
_vlcver=3.0.6
# optional fixup version including hyphen
_vlcfixupver=
pkgver=${_vlcver}${_vlcfixupver//-/.r}
pkgrel=9
pkgdesc='Multi-platform MPEG, VCD/DVD, and DivX player'
url='https://www.videolan.org/vlc/'
arch=('x86_64')
license=('LGPL2.1' 'GPL2')
depends=('a52dec' 'libdvbpsi' 'libxpm' 'libdca' 'libproxy' 'lua' 'libidn'
         'libmatroska' 'taglib' 'libmpcdec' 'ffmpeg' 'faad2' 'libupnp' 'libmad'
         'libmpeg2' 'xcb-util-keysyms' 'libtar' 'libxinerama' 'libsecret'
         'libarchive' 'qt5-base' 'qt5-x11extras' 'qt5-svg' 'freetype2'
         'fribidi' 'harfbuzz' 'fontconfig' 'libxml2' 'gnutls' 'libplacebo'
         'wayland-protocols' 'aribb24')
makedepends=('gst-plugins-base-libs' 'live-media' 'libnotify' 'libbluray'
             'flac' 'libdc1394' 'libavc1394' 'libcaca' 'gtk3'
             'librsvg' 'libgme' 'xosd' 'twolame' 'aalib' 'avahi' 'systemd-libs'
             'libmtp' 'libupnp' 'libmicrodns' 'libdvdcss' 'smbclient'
             'vcdimager' 'libssh2' 'mesa' 'protobuf' 'libnfs' 'mpg123'
             'libdvdread' 'libdvdnav' 'libogg' 'libshout' 'libmodplug' 'libvpx'
             'libvorbis' 'speex' 'opus' 'libtheora' 'libpng' 'libjpeg-turbo'
             'libx265.so' 'libx264.so' 'zvbi' 'libass' 'libkate' 'libtiger'
             'sdl_image' 'libpulse' 'alsa-lib' 'jack' 'libsamplerate' 'libsoxr'
             'lirc' 'libgoom2' 'projectm' 'chromaprint' 'aom' 'srt' 'dav1d')
optdepends=('avahi: service discovery using bonjour protocol'
            'aom: AOM AV1 codec'
            'gst-plugins-base-libs: for libgst plugins'
            'dav1d: dav1d AV1 decoder'
            'libdvdcss: decoding encrypted DVDs'
            'libavc1394: devices using the 1394ta AV/C'
            'libdc1394: IEEE 1394 access plugin'
            'kwallet: kwallet keystore'
            'libva-vdpau-driver: vdpau backend nvidia'
            'libva-intel-driver: video backend intel'
            'libbluray: Blu-Ray video input'
            'flac: Free Lossless Audio Codec plugin'
            'twolame: TwoLAME mpeg2 encoder plugin'
            'libgme: Game Music Emu plugin'
            'vcdimager: navigate VCD with libvcdinfo'
            'libmtp: MTP devices discovery'
            'systemd-libs: udev services discovery'
            'smbclient: SMB access plugin'
            'libcdio: audio CD playback'
            'ttf-freefont: subtitle font '
            'ttf-dejavu: subtitle font'
            'libssh2: sftp access'
            'libnfs: NFS access'
            'mpg123: mpg123 codec'
            'protobuf: chromecast streaming'
            'libmicrodns: mDNS services discovery (chromecast etc)'
            'lua-socket: http interface'
            'live-media: RTSP input'
            'libdvdread: DVD input module'
            'libdvdnav: DVD with navigation input module'
            'libogg: Ogg and OggSpots codec'
            'libshout: shoutcast/icecast output plugin'
            'libmodplug: MOD output plugin'
            'libvpx: VP8 and VP9 codec'
            'libvorbis: Vorbis decoder/encoder'
            'speex: Speex codec'
            'opus: opus codec'
            'libtheora: theora codec'
            'libpng: PNG support'
            'libjpeg-turbo: JPEG support'
            'librsvg: SVG plugin'
            'x264: H264 encoding'
            'x265: HEVC/H.265 encoder'
            'zvbi: VBI/Teletext decoding'
            'libass: Subtitle support'
            'libkate: Kate codec'
            'libtiger: Tiger rendering for Kate streams'
            'sdl_image: SDL image support'
            'srt: SRT input/output plugin'
            'aalib: ASCII art video output'
            'libcaca: colored ASCII art video output'
            'libpulse: PulseAudio audio output'
            'alsa-lib: ALSA audio output'
            'jack: jack audio server'
            'libsamplerate: audio Resampler'
            'libsoxr: SoX audio Resampler'
            'chromaprint: Chromaprint audio fingerprinter'
            'lirc: lirc control'
            'libgoom2: Goom visualization'
            'projectm: ProjectM visualisation'
            'ncurses: ncurses interface'
            'libnotify: notification plugin'
            'gtk3: notification plugin')
conflicts=('vlc-plugin')
replaces=('vlc-plugin')
options=('!emptydirs')
source=(https://download.videolan.org/${pkgname}/${_vlcver}/${pkgname}-${_vlcver}${_vlcfixupver}.tar.xz{,.asc}
        update-vlc-plugin-cache.hook
        lua53_compat.patch
        vlc-libvpx18.patch::https://github.com/videolan/vlc-3.0/commit/2688feb2742a6021ca211ae5c106b12c3d822946.patch
        ncm.patch)
sha512sums=('7c72e98f30ce5c5a94d74e097fa9960442f89240079b042a729f8a33dd7fedee2538c86c99738ccef2eb27f29055f0221d4c70316e3312c5ebba9565eaa15c52'
            'SKIP'
            '80357bae69e32b353d3784932d854e294906798e14faffb87c3383c3b6f6bdc57cbabb9c6e3f3c1adf0f8ddbb24153e72104c963cf1934970c2983c96daef9df'
            '33cda373aa1fb3ee19a78748e2687f2b93c8662c9fda62ecd122a2e649df8edaceb54dda3991bc38c80737945a143a9e65baa2743a483bb737bb94cd590dc25f'
            '4392415e49232be0d1d39e70f15307b9fec01dfb6e720d4978e415b4798a13f20c401e6c7a7a099e164332ffa9555a01e9bb1ee6fa48fb9a83d497d6411d6a04'
            'SKIP')
validpgpkeys=('65F7C6B4206BD057A7EB73787180713BE58D1ADC') # VideoLAN Release Signing Key

prepare() {
  cd ${pkgname}-${_vlcver}
  sed -e 's:truetype/ttf-dejavu:TTF:g' -i modules/visualization/projectm.cpp
  sed -e 's|-Werror-implicit-function-declaration||g' -i configure
  sed 's|whoami|echo builduser|g' -i configure
  sed 's|hostname -f|echo arch|g' -i configure
  local src
  for src in "${source[@]}"; do
    src="${src%%::*}"
    src="${src##*/}"
    [[ $src = *.patch ]] || continue
    msg2 "Applying patch $src..."
    patch -Np1 < "../$src"
  done
}

build() {
  cd ${pkgname}-${_vlcver}

  export CFLAGS+=" -I/usr/include/samba-4.0"
  export CPPFLAGS+=" -I/usr/include/samba-4.0"
  export CXXFLAGS+=" -std=c++11"
  export LUAC=/usr/bin/luac
  export LUA_LIBS="$(pkg-config --libs lua)"
  export RCC=/usr/bin/rcc-qt5

  ./configure --prefix=/usr \
              --sysconfdir=/etc \
              --with-kde-solid=/usr/share/solid/actions/ \
              --disable-rpath \
              --enable-nls \
              --enable-archive \
              --disable-live555 \
              --disable-dc1394 \
              --disable-dv1394 \
              --enable-dvdread \
              --disable-dvdnav \
              --disable-bluray \
              --disable-opencv \
              --disable-smbclient \
              --disable-sftp \
              --enable-nfs \
              --disable-realrtsp \
              --enable-dvbpsi \
              --enable-gme \
              --enable-ogg \
              --enable-shout \
              --enable-matroska \
              --enable-mod \
              --enable-mpc \
              --enable-mad \
              --enable-mpg123 \
              --enable-gst-decode \
              --enable-avcodec \
              --enable-libva \
              --enable-avformat \
              --enable-postproc \
              --enable-faad \
              --enable-vpx \
              --enable-twolame \
              --disable-fdkaac \
              --enable-a52 \
              --enable-dca \
              --enable-flac \
              --enable-libmpeg2 \
              --enable-vorbis \
              --enable-speex \
              --enable-opus \
              --enable-oggspots \
              --disable-schroedinger \
              --enable-png \
              --enable-jpeg \
              --enable-x264 \
              --enable-x265 \
              --enable-zvbi \
              --enable-libass \
              --enable-kate \
              --enable-tiger \
              --enable-vdpau \
              --enable-wayland \
              --enable-sdl-image \
              --enable-freetype \
              --enable-fribidi \
              --enable-harfbuzz \
              --enable-fontconfig \
              --enable-svg \
              --enable-svgdec \
              --enable-aa \
              --enable-caca \
              --enable-pulse \
              --enable-alsa \
              --enable-jack \
              --enable-samplerate \
              --enable-soxr \
              --enable-chromaprint \
              --disable-chromecast \
              --enable-libtar \
              --enable-ncurses \
              --enable-lirc \
              --enable-goom \
              --enable-projectm \
              --enable-avahi \
              --enable-mtp \
              --enable-upnp \
              --enable-microdns \
              --enable-libxml2 \
              --disable-libgcrypt \
              --enable-gnutls \
              --enable-taglib \
              --enable-secret \
              --disable-kwallet \
              --disable-update-check \
              --disable-notify \
              --disable-libplacebo \
              --disable-vlc \
              --enable-aribsub \
              --disable-aom \
              --disable-srt \
              --disable-qt \
              --disable-skins2
              #--enable-dav1d \
  make -j$(nproc)
}

package() {
  cd ${pkgname}-${_vlcver}

  make DESTDIR="${pkgdir}" install

  for res in 16 32 48 128 256; do
    install -Dm 644 "${srcdir}/vlc-${_vlcver}/share/icons/${res}x${res}/vlc.png" \
                     "${pkgdir}/usr/share/icons/hicolor/${res}x${res}/apps/vlc.png"
  done
  install -Dm 644 "${srcdir}/update-vlc-plugin-cache.hook" -t "${pkgdir}/usr/share/libalpm/hooks"
}

# vim: ts=2 sw=2 et:

update-vlc-plugin-cache.hook

[Trigger]
Type = File
Operation = Install
Operation = Upgrade
Operation = Remove
Target = usr/lib/vlc/plugins/*

[Action]
Description = Updating the vlc plugin cache...
When = PostTransaction
Exec = /usr/lib/vlc/vlc-cache-gen /usr/lib/vlc/plugins

pacman -Rdd lua52
makepkg -sr --skippgpcheck --noarchive
pacman -S lua52 --asdeps

./pkg/vlc/usr/lib/
├── libvlccore.so.9
├── libvlc_pulse.so.0
├── libvlc.so.5
├── libvlc_vdpau.so.0
├── libvlc_xcb_events.so.0
└── vlc/
    ├── libvlc_pulse.so
    ├── libvlc_vdpau.so
    ├── libvlc_xcb_events.so
    └── plugins/

backup /opt/netease/netease-cloud-music/libs/ then
copy and replace ./pkg/vlc/usr/lib/* to /opt/netease/netease-cloud-music/libs/