检查/dev/snd/ 目录下是否存在 PCM 设备文件(如 pcmC0D0p、pcmC0D0c 等)。 使用arecord -l 或aplay -l 命令列出所有可用的音频设备,确认 PCM 设备是否被正确识别。 查看pcm_open 函数的调用参数是否正确: 检查调用 pcm_open 函数时传递的参数,确保设备名称和访问模式(如只读、只写或读写)是正确的。 示...
thread 'thread_play_sound' panicked at 'called `Result::unwrap()` on an `Err` value: DefaultStreamConfigError(BackendSpecific { err: BackendSpecificError { description: "ALSA function 'snd_pcm_open' failed with error 'EHOSTDOWN: Host is down'" } })', src/notifications/types/sound.rs:...
"ALSA输入错误(snd_pcm_open)：没有这样的文件或目录“EN最近想研究一下树莓派3b的一些底层驱动的代码...
安装pipewire-pulse以替换掉pulseaudio, 解决音频管理器的冲突即可。 __EOF__
问使用ALSA库捕获音频- snd_pcm_open =>没有这样的文件或目录EN虽然都是linux，芯片也是基于同样的架构...
I get "cannot open device (0) for card(2): Permission denied" error when I tried to launch the application from Android Studio that attempts to open an audio stream from 8MIC-PRI-MX8 mic array board. Note: 8MIC-PRI-MX8 mic array board appears as an alsa device...
_snd_pcm_empty_open和snd_pcm_open_named_slave ==>snd_pcm_open_conf(pcmp,name,root,conf,stream,mode); ==>open_func=snd_dlobj_cache_lookup(open_name);将获得lib库中_snd_pcm_empty_open函数 所以open_func将等于_snd_pcm_empty_open_
Alsa error PCM open ALSA function 'snd_pcm_hw_params_set_format' failed with error 'EINVAL: Invalid argument' Could not start audio: Alsa error: PCM open failed Am I still getting device name wrong? I searched a bit for this error on issues and didn't found a matching error. ...
DM8168使用ALSA在A8采集音频,每次使用sysfs动态切换HDMI输出制式,snd_pcm_readi耗时特别大(阻塞模式),声音卡顿,平台为DVR_RDK2.8,想问一下,下面的代码执行怎么影响ALSA的采集? VDIS_CMD_ARG2(gBuff, VDIS_TIMINGS_SETVENC, 0, 3) VDIS_CMD_ARG2(gBuff, VDIS_TIMINGS_SETVENC, 0, 0) V...
我在Ubuntu 16.04主机上运行Ubuntu 12.04Docker容器。我在一些测试代码中使用SND_PCM_STREAM_PLAYBACK和SND_PCM_STREAM_CAPTURE流类型练习了'snd_pcm_open'/'snd_pcm_close‘操作。我不需要任何实际的声音/音频功能,但只需使用有效的句柄获取'snd_pcm_open‘返回0,然后在同一句柄上使用 ...