snd+pcm+action+nonatomic

2025-05-13 17:27:27

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杂记asla-lib库函数snd_pcm_open打开流程 - 21ic电子网

==> snd_pcm_new(&pcm, SND_PCM_TYPE_HW, name, info.stream, mode); pcm->ops = &snd_pcm_hw_ops; pcm->fast_ops = &snd_pcm_hw_fast_ops; static int snd_pcm_hw_mmap_control(snd_pcm_t *pcm) { snd_pcm_hw_t *hw = pcm->private_data; void *ptr; int err; if (hw->sync_p...
alsa声卡dev_snd_pcmC0D0p的open打开流程 - 百度文库

==> snd_pcm_open(&handle, pcm_name, stream, open_mode); //打开一路pcm,刷新config配置如果是"default",同时type等于SND_CONFIG_TYPE_COMPOUND那么这里对应"empty" static const char *const build_in_pcms[] = { "adpcm", "alaw", "copy", "dmix", "file", "hooks", "hw", "ladspa", "...
alsa声卡dev_snd_pcmC0D0p的open打开流程 - 百度文库

==> snd_pcm_open(&handle, pcm_name, stream, open_mode); //打开一路pcm,刷新config配置如果是"default",同时type等于SND_CONFIG_TYPE_COMPOUND那么这里对应"empty" static const char *const build_in_pcms[] = { "adpcm", "alaw", "copy", "dmix", "file", "hooks", "hw", "ladspa", "...
alsa声卡dev_snd_pcmC0D0p的open打开流程 - 百度文库

==> snd_pcm_open(&handle, pcm_name, stream, open_mode); //打开一路pcm,刷新config配置如果是"default",同时type等于SND_CONFIG_TYPE_COMPOUND那么这里对应"empty" static const char *const build_in_pcms[] = { "adpcm", "alaw", "copy", "dmix", "file", "hooks", "hw", "ladspa", "...