群晖Video Station 2.5.0 版本不支持 DTS播放解决方法

解决方法转自知乎文章： VideoStation DTS\EAC3\TureHD

首先安装 ffmpeg

1. （管理员账号）进入 DSM 桌面，打开套件中心，点击设置 ---> 常规，在信任层级中选择任何发行者;
2. 接着点击 套件来源，选择 新增 添加第三方源(https://packages.synocommunity.com/)
3. 在刚刚添加的第三方套件源中找到 ffmpeg 进行安装。

解决方案

• 打开SSh终端，以管理员身份登录DSM，键入命令 sudo -i, 输入管理员密码进入root用户 (same password as for "admin")
  
• 执行下面代码：Copy / paste the following commands:

# Save VideoStation's ffmpeg
mv -n /var/packages/VideoStation/target/bin/ffmpeg /var/packages/VideoStation/target/bin/ffmpeg.orig
# Injecting the script (last revision aka 12)
wget -O - https://gist.githubusercontent.com/BenjaminPoncet/bbef9edc1d0800528813e75c1669e57e/raw/ffmpeg-wrapper > /var/packages/VideoStation/target/bin/ffmpeg
# Change ownership and mode of the script
chown root:VideoStation /var/packages/VideoStation/target/bin/ffmpeg
chmod 750 /var/packages/VideoStation/target/bin/ffmpeg
chmod u+s /var/packages/VideoStation/target/bin/ffmpeg
# Save VideoStation's libsynovte.so
cp -n /var/packages/VideoStation/target/lib/libsynovte.so /var/packages/VideoStation/target/lib/libsynovte.so.orig
chown VideoStation:VideoStation /var/packages/VideoStation/target/lib/libsynovte.so.orig
# Patch libsynovte.so to authorize DTS, EAC3 and TrueHD
sed -i -e 's/eac3/3cae/' -e 's/dts/std/' -e 's/truehd/dheurt/' /var/packages/VideoStation/target/lib/libsynovte.so

• Syno launches /var/packages/CodecPack/target/bin/ffmpeg33 to convert video, so i launch this command:

mv /var/packages/CodecPack/target/bin/ffmpeg33  /var/packages/CodecPack/target/bin/ffmpeg33.orig   
cp /var/packages/VideoStation/target/bin/ffmpeg /var/packages/CodecPack/target/bin/ffmpeg33

• 重启VideoStation (Stop/Start in "Package Center")

  享受VideoStation DTS解码播放吧。

更新升级：Update the wrapper (for x64, x86 and old arm arch)

• Copy / paste the following commands:

# Injecting the script (last revision aka 12)
wget -O - https://gist.githubusercontent.com/BenjaminPoncet/bbef9edc1d0800528813e75c1669e57e/raw/ffmpeg-wrapper > /var/packages/VideoStation/target/bin/ffmpeg

卸载安装：Uninstallation (for x64, x86 and old arm arch)

• Copy / paste the following commands:

# Restore VideoStation's ffmpeg, libsynovte.so
mv -f /var/packages/VideoStation/target/bin/ffmpeg.orig /var/packages/VideoStation/target/bin/ffmpeg
mv -f /var/packages/VideoStation/target/lib/libsynovte.so.orig /var/packages/VideoStation/target/lib/libsynovte.so

• Or, more simply, uninstall and re-install VideoStation