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Read trait

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This commit is contained in:
Jamie Hardt
2021-12-31 12:56:08 -08:00
parent 319845ae49
commit 4ddffa0b4a
1 changed files with 0 additions and 45 deletions
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45
src/fmt.rs
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@@ -379,49 +379,4 @@ impl WaveFmt {
x => panic!("Channel count ({}) was illegal!", x),
}
}
}
trait ReadWavAudioData {
fn read_i32_frames(&mut self, format: WaveFmt, into: &mut [i32]) -> Result<usize,std::io::Error>;
fn read_f32_frames(&mut self, format: WaveFmt, into: &mut [f32]) -> Result<usize,std::io::Error>;
}
impl<T> ReadWavAudioData for T where T: std::io::Read {
fn read_i32_frames(&mut self, format: WaveFmt, into: &mut [i32]) -> Result<usize, std::io::Error> {
assert!(into.len() % format.channel_count as usize == 0);
for n in 0..(into.len()) {
into[n] = match (format.valid_bits_per_sample(), format.bits_per_sample) {
(0..=8,8) => self.read_u8().unwrap() as i32 - 0x80_i32, // EBU 3285 §A2.2
(9..=16,16) => self.read_i16::<LittleEndian>().unwrap() as i32,
(10..=24,24) => self.read_i24::<LittleEndian>().unwrap(),
(25..=32,32) => self.read_i32::<LittleEndian>().unwrap(),
(b,_)=> panic!("Unrecognized integer format, bits per sample {}, channels {}, block_alignment {}",
b, format.channel_count, format.block_alignment)
}
}
todo!()
}
fn read_f32_frames(&mut self, format: WaveFmt, into: &mut [f32]) -> Result<usize, std::io::Error> {
assert!(into.len() % format.channel_count as usize == 0);
todo!()
}
}
trait WriteWavAudioData {
fn write_i32_frames(&mut self, format: WaveFmt, from: &[i32]) -> Result<usize, std::io::Error>;
fn write_f32_frames(&mut self, format: WaveFmt, from: &[f32]) -> Result<usize, std::io::Error>;
}
impl<T> WriteWavAudioData for T where T: std::io::Write {
fn write_i32_frames(&mut self, format: WaveFmt, _: &[i32]) -> Result<usize, std::io::Error> {
todo!()
}
fn write_f32_frames(&mut self, format: WaveFmt, _: &[f32]) -> Result<usize, std::io::Error> {
todo!()
}
}