Struct MediaRecorder

pub struct MediaRecorder { /* private fields */ }

Record and encode media

use web_audio_api::context::AudioContext;
use web_audio_api::media_recorder::{MediaRecorder, MediaRecorderOptions};

let context = AudioContext::default();
let output = context.create_media_stream_destination();

let options = MediaRecorderOptions::default(); // default to audio/wav
let recorder = MediaRecorder::new(output.stream(), options);
recorder.set_ondataavailable(|event| {
    println!("Received {} bytes of data", event.blob.size());
});
recorder.start();

Examples

• cargo run --release --example recorder

Implementations

impl MediaRecorder

pub fn is_type_supported(mime_type: &str) -> bool

A static method which returns a true or false value indicating if the given MIME media type is supported.

pub fn new(stream: &MediaStream, options: MediaRecorderOptions) -> Self

Creates a new MediaRecorder object, given a MediaStream to record.

Only supports WAV file format currently, so options.mime_type should be set to audio/wav or left empty.

Panics

This function will panic with a NotSupportedError when the provided mime type is not supported. Be sure to check Self::is_type_supported before calling this constructor.

pub fn set_ondataavailable<F: FnMut(BlobEvent) + Send + 'static>( &self, callback: F, )

pub fn clear_ondataavailable(&self)

pub fn set_onstop<F: FnOnce(Event) + Send + 'static>(&self, callback: F)

pub fn clear_onstop(&self)

pub fn set_onerror<F: FnOnce(ErrorEvent) + Send + 'static>(&self, callback: F)

pub fn clear_onerror(&self)

pub fn start(&self)

Begin recording media

Panics

Will panic when the recorder has already started

pub fn stop(&self)

Trait Implementations

impl Debug for MediaRecorder

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

Formats the value using the given formatter.