Struct tetra::audio::Sound

pub struct Sound { /* private fields */ }

Sound data that can be played back.

All of the playback methods on this type return a SoundInstance that can be used to control the sound after it has started. If you just want to ‘fire and forget’ a sound, you can discard it - the sound will continue playing regardless.

Supported File Formats

Audio can be decoded from various common file formats via the new and from_encoded constructors. Individual decoders can be enabled or disabled via Cargo feature flags.

Format	Cargo feature	Enabled by default?
WAV	audio_wav	Yes
OGG Vorbis	audio_vorbis	Yes
MP3	audio_mp3	Yes
FLAC	audio_flac	No

Performance

When you create an instance of Sound, the audio data is loaded into memory. It is not decoded until playback begins.

You can clone a sound cheaply, as it is reference-counted internally. The underlying data will be shared by all of the clones (and, by extension, all of the SoundInstances created from them).

Examples

The audio example demonstrates how to play several different kinds of sound.

Implementations

impl Sound

pub fn new<P>(path: P) -> Result<Sound>where P: AsRef<Path>,

Creates a new sound from the given file.

Note that the data is not decoded until playback begins, so this function will not validate that the data being read is formatted correctly.

Errors

• TetraError::FailedToLoadAsset will be returned if the file could not be loaded.

pub fn from_encoded(data: &[u8]) -> Sound

Creates a new sound from a slice of binary data, encoded in one of Tetra’s supported file formats.

This is useful in combination with include_bytes, as it allows you to include your audio data directly in the binary.

Note that the data is not decoded until playback begins, so this function will not validate that the data being read is formatted correctly.

pub fn play(&self, ctx: &Context) -> Result<SoundInstance>

Plays the sound.

Errors

• TetraError::NoAudioDevice will be returned if no audio device is active.
• TetraError::InvalidSound will be returned if the sound data could not be decoded.

pub fn repeat(&self, ctx: &Context) -> Result<SoundInstance>

Plays the sound repeatedly.

Errors

• TetraError::NoAudioDevice will be returned if no audio device is active.
• TetraError::InvalidSound will be returned if the sound data could not be decoded.

pub fn spawn(&self, ctx: &Context) -> Result<SoundInstance>

Spawns a new instance of the sound that is not playing yet.

Errors

• TetraError::NoAudioDevice will be returned if no audio device is active.
• TetraError::InvalidSound will be returned if the sound data could not be decoded.

pub fn play_with( &self, ctx: &Context, volume: f32, speed: f32 ) -> Result<SoundInstance>

Plays the sound, with the provided settings.

Errors

• TetraError::NoAudioDevice will be returned if no audio device is active.
• TetraError::InvalidSound will be returned if the sound data could not be decoded.

pub fn repeat_with( &self, ctx: &Context, volume: f32, speed: f32 ) -> Result<SoundInstance>

Plays the sound repeatedly, with the provided settings.

Errors

• TetraError::NoAudioDevice will be returned if no audio device is active.
• TetraError::InvalidSound will be returned if the sound data could not be decoded.

pub fn spawn_with( &self, ctx: &Context, volume: f32, speed: f32 ) -> Result<SoundInstance>

Spawns a new instance of the sound that is not playing yet, with the provided settings.

Errors

• TetraError::NoAudioDevice will be returned if no audio device is active.
• TetraError::InvalidSound will be returned if the sound data could not be decoded.

Trait Implementations

impl Clone for Sound

fn clone(&self) -> Sound

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Sound

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<Sound> for Sound

fn eq(&self, other: &Sound) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Sound

impl StructuralEq for Sound

impl StructuralPartialEq for Sound