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fix sample rate for symphonia decoder (#380)

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Austin Schey 2021-06-30 13:57:19 -04:00 committed by GitHub
parent edc60950b6
commit f6bb97e0d3
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 21 deletions
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39
src/decoder/symphonia.rs
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@ -1,7 +1,7 @@
use std::time::Duration;
use symphonia::{
core::{
audio::SampleBuffer,
audio::{AudioBufferRef, SampleBuffer, SignalSpec},
codecs::{Decoder, DecoderOptions},
errors::Error,
formats::{FormatOptions, FormatReader},
@ -22,7 +22,7 @@ pub struct SymphoniaDecoder {
current_frame_offset: usize,
format: Box<dyn FormatReader>,
buffer: SampleBuffer<i16>,
channels: usize,
spec: SignalSpec,
}
impl SymphoniaDecoder {
@ -73,21 +73,26 @@ impl SymphoniaDecoder {
)?;
let current_frame = probed.format.next_packet()?;
let decoded = decoder.decode(&current_frame)?;
let spec = decoded.spec().clone();
let duration = units::Duration::from(decoded.capacity() as u64);
let mut buf = SampleBuffer::<i16>::new(duration, spec.to_owned());
buf.copy_interleaved_ref(decoded);
let spec = decoded.spec().to_owned();
let buffer = SymphoniaDecoder::get_buffer(decoded, &spec);
return Ok(Some(SymphoniaDecoder {
decoder,
current_frame_offset: 0,
format: probed.format,
buffer: buf,
channels: spec.channels.count(),
buffer,
spec,
}));
}
#[inline]
fn get_buffer(decoded: AudioBufferRef, spec: &SignalSpec) -> SampleBuffer<i16> {
let duration = units::Duration::from(decoded.capacity() as u64);
let mut buffer = SampleBuffer::<i16>::new(duration, spec.clone());
buffer.copy_interleaved_ref(decoded);
return buffer;
}
}
impl Source for SymphoniaDecoder {
@ -98,17 +103,12 @@ impl Source for SymphoniaDecoder {
#[inline]
fn channels(&self) -> u16 {
self.channels as u16
self.spec.channels.count() as u16
}
#[inline]
fn sample_rate(&self) -> u32 {
self.format
.default_track()
.unwrap()
.codec_params
.sample_rate
.unwrap()
self.spec.rate
}
#[inline]
@ -126,11 +126,8 @@ impl Iterator for SymphoniaDecoder {
match self.format.next_packet() {
Ok(packet) => match self.decoder.decode(&packet) {
Ok(decoded) => {
let spec = decoded.spec();
let duration = units::Duration::from(decoded.capacity() as u64);
let mut buf = SampleBuffer::<i16>::new(duration, spec.to_owned());
buf.copy_interleaved_ref(decoded);
self.buffer = buf;
self.spec = decoded.spec().to_owned();
self.buffer = SymphoniaDecoder::get_buffer(decoded, &self.spec);
}
Err(_) => return None,
},