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Wavewriter impl

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This commit is contained in:
Jamie Hardt
2020-12-25 20:55:38 -08:00
parent e8b030bd1e
commit e4fc4732b5
3 changed files with 32 additions and 11 deletions
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19
src/wavewriter.rs
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@@ -2,8 +2,9 @@ use std::fs::File;
use std::io::{Write,Seek,SeekFrom};
use super::Error;
use super::fourcc::{FourCC, WriteFourCC, RIFF_SIG, WAVE_SIG, FMT__SIG,};
use super::fourcc::{FourCC, WriteFourCC, RIFF_SIG, WAVE_SIG, FMT__SIG,FACT_SIG};
use super::fmt::WaveFmt;
use super::common_format::CommonFormat;
use super::chunks::WriteBWaveChunks;
use byteorder::LittleEndian;
@@ -66,7 +67,9 @@ impl<W> Write for WaveChunkWriter<W> where W: Write + Seek {
pub struct WaveWriter<W> where W: Write + Seek {
inner : W,
form_length: u64,
format: WaveFmt
/// Format of the wave file.
pub format: WaveFmt
}
impl WaveWriter<File> {
@@ -97,7 +100,14 @@ impl<W> WaveWriter<W> where W: Write + Seek {
chunk.write_wave_fmt(&format)?;
let retval = chunk.end();
Ok( retval )
if format.common_format() != CommonFormat::IntegerPCM {
let mut chunk = retval.begin_chunk(FACT_SIG)?;
chunk.write_u32::<LittleEndian>(0)?;
let retval = chunk.end();
Ok( retval )
} else {
Ok( retval )
}
}
/// Create a new chunk writer, which takes posession of the `WaveWriter`.
@@ -135,4 +145,5 @@ fn test_new() {
let fmt_size = cursor.read_u32::<LittleEndian>().unwrap();
assert_eq!(form_size, fmt_size + 8 + 4);
}
}