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Add support for multichannel decoded audio

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This commit is contained in:
Fernando Jiménez Moreno 2018-08-30 09:13:57 +02:00
parent 795e7f6002
commit f423ede07f
4 changed files with 113 additions and 21 deletions
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7
components/script/dom/audiobuffer.rs
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@ -64,7 +64,7 @@ impl AudioBuffer {
number_of_channels: u32,
length: u32,
sample_rate: f32,
initial_data: Option<&[f32]>,
initial_data: Option<&[Vec<f32>]>,
) -> DomRoot<AudioBuffer> {
let buffer = AudioBuffer::new_inherited(number_of_channels, length, sample_rate);
let buffer = reflect_dom_object(Box::new(buffer), global, AudioBufferBinding::Wrap);
@ -93,20 +93,19 @@ impl AudioBuffer {
}
#[allow(unsafe_code)]
pub fn set_channels(&self, initial_data: Option<&[f32]>) {
pub fn set_channels(&self, initial_data: Option<&[Vec<f32>]>) {
let global = self.global();
let cx = global.get_cx();
let _ac = JSAutoCompartment::new(cx, global.reflector().get_jsobject().get());
let chans = self.js_channels.borrow_mut();
for channel in 0..self.number_of_channels {
rooted!(in (cx) let mut array = ptr::null_mut::<JSObject>());
let offset = (channel * self.length) as usize;
match initial_data {
Some(data) => {
let _ = unsafe {
Float32Array::create(
cx,
CreateWith::Slice(&data[offset..offset + (self.length as usize) - 1]),
CreateWith::Slice(data[channel as usize].as_slice()),
array.handle_mut(),
)
};