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Only read RIFF INFO LISTs instead of all LISTs

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Signed-off-by: Serial <69764315+Serial-ATA@users.noreply.github.com>
This commit is contained in:
Serial 2021-05-15 20:57:31 -04:00
parent c285b36629
commit 028afaa9ee
2 changed files with 67 additions and 56 deletions
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2
Cargo.toml
View file

@ -17,7 +17,7 @@ ape = {version = "0.3.0", optional = true}
# Wav
riff = {version = "1.0.1", optional = true}
# Mp3
id3 = {version = "0.6.3", optional = true} # De/Encoding
id3 = {version = "0.6.4", optional = true} # De/Encoding
mp3-duration = {version = "0.1.10", optional = true} # Duration
# Ogg
lewton = {version = "0.10.2", optional = true} # Decoding

25
src/components/logic/read.rs
View file

@ -11,21 +11,31 @@ where
{
let chunk = riff::Chunk::read(&mut data, 0)?;
let mut list: Option<riff::Chunk> = None;
let mut lists: Vec<riff::Chunk> = Vec::new();
for child in chunk.iter(&mut data) {
let chunk_id = child.id();
let value_upper = std::str::from_utf8(&chunk_id.value)?.to_uppercase();
let value_bytes = value_upper.as_bytes();
if value_bytes == LIST_ID {
// TODO: actually check for the INFO id rather than any LIST
list = Some(child);
if &chunk_id.value == LIST_ID {
lists.push(child)
}
}
return if lists.is_empty() {
Err(Error::Wav(
"This file doesn't contain a LIST chunk".to_string(),
))
} else {
let mut info: Option<riff::Chunk> = None;
for child in lists {
if &child.read_type(&mut data)?.value == b"INFO" {
info = Some(child);
break;
}
}
return if let Some(list) = list {
if let Some(list) = info {
let mut content = list.read_contents(&mut data)?;
content.drain(0..4); // Get rid of the chunk ID
@ -77,6 +87,7 @@ where
Err(Error::Wav(
"This file doesn't contain an INFO chunk".to_string(),
))
}
};
}