如何修复“警告：错误的管道：没有元素 "mad"”
How to fix `WARNING: erroneous pipeline: no element "mad"`
我是 运行 gstreamer 命令，使用以下命令从终端播放 mp3：
gst-launch-1.0 -v filesrc location=/home/user/songs/song.mp3 !疯狂的 ！音频转换！音频重采样！ autoaudiosink
我收到以下错误消息，mp3 无法播放
警告：错误的管道：没有元素“mad”
我已经使用以下命令安装了 gstreamer 插件：
sudo apt-get install gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav
安装成功，但错误依旧。
另外我检查了mad插件是否被列入黑名单使用
gst-inspect-1.0 且未列入黑名单。
我清除了~/.cache/gstreamer-1.0/registry.*.bin.
下面的命令在 ubuntu 18.04
中失败
gst-launch-1.0 -v filesrc location=/home/user/songs/song.mp3 !疯狂的 ！音频转换！音频重采样！自动音频接收器
下面的命令有效，但我想使用“mad：而不是”decodebin：
gst-launch-1.0 -v filesrc location=/home/user/songs/song.mp3 !解码箱！音频转换！音频重采样！ autoaudiosink
来自 GStreamer 的 1.12 插件删除更新日志：
The mad mp1/mp2/mp3 decoder plugin was removed from gst-plugins-ugly, as libmad is GPL licensed, has been unmaintained for a very long time, and there are better alternatives available. Use the mpg123audiodec element from the mpg123 plugin in gst-plugins-ugly instead, or avdec_mp3 from the gst-libav module which wraps the ffmpeg library. We expect that we will be able to move mp3 decoding to gst-plugins-good in the next cycle seeing that most patents around mp3 have expired recently or are about to expire.
我是 运行 gstreamer 命令，使用以下命令从终端播放 mp3：
gst-launch-1.0 -v filesrc location=/home/user/songs/song.mp3 !疯狂的 ！音频转换！音频重采样！ autoaudiosink
我收到以下错误消息，mp3 无法播放
警告：错误的管道：没有元素“mad”
我已经使用以下命令安装了 gstreamer 插件：
sudo apt-get install gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav
安装成功，但错误依旧。
另外我检查了mad插件是否被列入黑名单使用 gst-inspect-1.0 且未列入黑名单。
我清除了~/.cache/gstreamer-1.0/registry.*.bin.
下面的命令在 ubuntu 18.04
中失败gst-launch-1.0 -v filesrc location=/home/user/songs/song.mp3 !疯狂的 ！音频转换！音频重采样！自动音频接收器
下面的命令有效，但我想使用“mad：而不是”decodebin：
gst-launch-1.0 -v filesrc location=/home/user/songs/song.mp3 !解码箱！音频转换！音频重采样！ autoaudiosink
来自 GStreamer 的 1.12 插件删除更新日志：
The mad mp1/mp2/mp3 decoder plugin was removed from gst-plugins-ugly, as libmad is GPL licensed, has been unmaintained for a very long time, and there are better alternatives available. Use the mpg123audiodec element from the mpg123 plugin in gst-plugins-ugly instead, or avdec_mp3 from the gst-libav module which wraps the ffmpeg library. We expect that we will be able to move mp3 decoding to gst-plugins-good in the next cycle seeing that most patents around mp3 have expired recently or are about to expire.