Struct alsa::pcm::PCM

pub struct PCM(_, _);

snd_pcm_t wrapper - start here for audio playback and recording

Methods

impl PCM

fn new(name: &str, dir: Direction, nonblock: bool) -> Result<PCM>

Wrapper around open that takes a &str instead of a &CStr

fn open(name: &CStr, dir: Direction, nonblock: bool) -> Result<PCM>

fn start(&self) -> Result<()>

fn drop(&self) -> Result<()>

fn pause(&self, pause: bool) -> Result<()>

fn resume(&self) -> Result<()>

fn drain(&self) -> Result<()>

fn prepare(&self) -> Result<()>

fn reset(&self) -> Result<()>

fn recover(&self, err: c_int, silent: bool) -> Result<()>

fn wait(&self, timeout_ms: Option<u32>) -> Result<bool>

fn state(&self) -> State

fn bytes_to_frames(&self, i: isize) -> Frames

fn frames_to_bytes(&self, i: Frames) -> isize

fn avail_update(&self) -> Result<Frames>

fn avail(&self) -> Result<Frames>

fn avail_delay(&self) -> Result<(Frames, Frames)>

fn status(&self) -> Result<Status>

fn io_i8<'a>(&'a self) -> Result<IO<'a, i8>>

fn io_u8<'a>(&'a self) -> Result<IO<'a, u8>>

fn io_i16<'a>(&'a self) -> Result<IO<'a, i16>>

fn io_u16<'a>(&'a self) -> Result<IO<'a, u16>>

fn io_i32<'a>(&'a self) -> Result<IO<'a, i32>>

fn io_u32<'a>(&'a self) -> Result<IO<'a, u32>>

fn io_f32<'a>(&'a self) -> Result<IO<'a, f32>>

fn io_f64<'a>(&'a self) -> Result<IO<'a, f64>>

fn io<'a>(&'a self) -> IO<'a, u8>

fn direct_mmap_capture<S>(&self) -> Result<MmapCapture<S>>

Experimental: Read buffers by talking to the kernel directly, bypassing alsa-lib.

fn direct_mmap_playback<S>(&self) -> Result<MmapPlayback<S>>

Experimental: Write buffers by talking to the kernel directly, bypassing alsa-lib.

fn hw_params(&self, h: &HwParams) -> Result<()>

Sets hw parameters. Note: No IO object can exist for this PCM when hw parameters are set.

fn hw_params_current<'a>(&'a self) -> Result<HwParams<'a>>

fn sw_params(&self, h: &SwParams) -> Result<()>

fn sw_params_current<'a>(&'a self) -> Result<SwParams<'a>>

fn info(&self) -> Result<Info>

fn dump(&self, o: &mut Output) -> Result<()>

fn dump_hw_setup(&self, o: &mut Output) -> Result<()>

fn dump_sw_setup(&self, o: &mut Output) -> Result<()>

fn query_chmaps(&self) -> ChmapsQuery

fn set_chmap(&self, c: &Chmap) -> Result<()>

fn get_chmap(&self) -> Result<Chmap>

Trait Implementations

impl Send for PCM

impl Drop for PCM

fn drop(&mut self)

Executes the destructor for this type.

impl PollDescriptors for PCM

fn count(&self) -> usize

fn fill(&self, p: &mut [pollfd]) -> Result<usize>

fn revents(&self, p: &[pollfd]) -> Result<PollFlags>

fn get(&self) -> Result<Vec<pollfd>>

Wrapper around count and fill - returns an array of pollfds