我已经安装了实时视频编辑器本站说明以及这个命令：
sudo add-apt-repository ppa:ubuntuhandbook1/lives
sudo apt update
sudo apt install lives
因此当我尝试运行它时，出现此错误：
因此我尝试删除播放器并使用此命令重新安装它：
sudo apt-get remove --purge mplayer
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libdirectfb-1.7-7 libenca0 libvorbisidec1 linux-headers-5.0.0-32
linux-headers-5.0.0-32-generic linux-image-5.0.0-32-generic
linux-modules-5.0.0-32-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
mplayer*
0 upgraded, 0 newly installed, 1 to remove and 8 not upgraded.
After this operation, 5,065 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 333255 files and directories currently installed.)
Removing mplayer (2:1.3.0-7build2) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for mime-support (3.60ubuntu1) ...
(Reading database ... 333227 files and directories currently installed.)
Purging configuration files for mplayer (2:1.3.0-7build2) ...
so@so-notebook:/media/so/ACAC8B5FAC8B2346/Elasa/Softwares/Linux's/Programer/VmWare$ rm -r ~/.mplayer/
so@so-notebook:/media/so/ACAC8B5FAC8B2346/Elasa/Softwares/Linux's/Programer/VmWare$ sudo aptitude install mplayer
The following NEW packages will be installed:
mplayer
0 packages upgraded, 1 newly installed, 0 to remove and 8 not upgraded.
Need to get 0 B/2,215 kB of archives. After unpacking 5,065 kB will be used.
W: Target Packages (universe/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Packages (universe/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Packages (universe/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Translations (universe/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Translations (universe/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11 (universe/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11 (universe/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11-icons-small (universe/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11-icons (universe/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target CNF (universe/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target CNF (universe/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Packages (universe/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Packages (universe/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Packages (universe/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Translations (universe/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Translations (universe/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11 (universe/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11 (universe/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11-icons-small (universe/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11-icons (universe/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target CNF (universe/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target CNF (universe/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
Selecting previously unselected package mplayer.
(Reading database ... 333224 files and directories currently installed.)
Preparing to unpack .../mplayer_2%3a1.3.0-7build2_amd64.deb ...
Unpacking mplayer (2:1.3.0-7build2) ...
Setting up mplayer (2:1.3.0-7build2) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for mime-support (3.60ubuntu1) ...
W: Target Packages (universe/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Packages (universe/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Packages (universe/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Translations (universe/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target Translations (universe/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11 (universe/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11 (universe/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11-icons-small (universe/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target DEP-11-icons (universe/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target CNF (universe/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
W: Target CNF (universe/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list:43 and /etc/apt/sources.list:48
但错误仍然存在！！
感谢您的关注。
答案1
我认为这是一个愚蠢的错误。首先，当前版本的mplayer 做有能力解码png（mplayer 使用 libpng；我安装了 libpng 包和 libpng-tools，但仍然出现错误，我用 png 文件测试了 mplayer，它确实解码了）。接下来，查看其中一个生命的源文件似乎第 1110 行还有另一条错误消息，指出：“您应该安装支持 png/alpha 或 jpeg 的 mplayer”。
看来你需要 jpeg或者png/alpha 支持。
除非您最终出现一些不良行为或者缺少某些功能，否则您应该能够忽略此错误。