docker 中可能没法正常播放声音，不是经常出现
docker有时候没法正常播放声音，不是每台机都出现，
➜ ~ mplayer /opt/ros/foxy/share/cti_soundplay/sounds/business/Breakpoint_reaches_point.wav
MPlayer 1.3.0 (Debian), built with gcc-9 (C) 2000-2016 MPlayer Team
do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing /opt/ros/foxy/share/cti_soundplay/sounds/business/Breakpoint_reaches_point.wav.
libavformat version 58.29.100 (external)
Audio only file format detected.
Load subtitles in /opt/ros/foxy/share/cti_soundplay/sounds/business/
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 16000 Hz, 1 ch, s16le, 256.0 kbit/100.00% (ratio: 32000->32000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
AO: [pulse] Init failed: Connection refused
Failed to initialize audio driver 'pulse'
[AO_ALSA] alsa-lib: confmisc.c:767:(parse_card) cannot find card '0'
[AO_ALSA] alsa-lib: conf.c:4732:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
[AO_ALSA] alsa-lib: confmisc.c:392:(snd_func_concat) error evaluating strings
[AO_ALSA] alsa-lib: conf.c:4732:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
[AO_ALSA] alsa-lib: confmisc.c:1246:(snd_func_refer) error evaluating name
[AO_ALSA] alsa-lib: conf.c:4732:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
[AO_ALSA] alsa-lib: conf.c:5220:(snd_config_expand) Evaluate error: No such file or directory
[AO_ALSA] alsa-lib: pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM default
[AO_ALSA] Playback open error: No such file or directory
Failed to initialize audio driver 'alsa'
[AO SDL] Samplerate: 16000Hz Channels: Mono Format s16le
[AO SDL] using aalib audio driver.
[AO SDL] Unable to open audio: No available audio device
Failed to initialize audio driver 'sdl:aalib'
Could not open/initialize audio device -> no sound.
Audio: no sound
Video: no video
Exiting... (End of file)
➜ ~ sudo mplayer /opt/ros/foxy/share/cti_soundplay/sounds/business/Breakpoint_reaches_point.wav
sudo: unable to resolve host ade: Temporary failure in name resolution
[sudo] password for neousys:
Creating config file: /root/.mplayer/config
MPlayer 1.3.0 (Debian), built with gcc-9 (C) 2000-2016 MPlayer Team
do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing /opt/ros/foxy/share/cti_soundplay/sounds/business/Breakpoint_reaches_point.wav.
libavformat version 58.29.100 (external)
Audio only file format detected.
Load subtitles in /opt/ros/foxy/share/cti_soundplay/sounds/business/
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 16000 Hz, 1 ch, s16le, 256.0 kbit/100.00% (ratio: 32000->32000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
AO: [pulse] Init failed: Connection refused
Failed to initialize audio driver 'pulse'
AO: [alsa] 48000Hz 1ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A: 3.5 (03.5) of 3.0 (03.0) 0.1%
Exiting... (End of file)
➜ ~ play
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5220:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM default
play FAIL sox: Sorry, there is no default audio device configured