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test(seek) made channel order more brittle

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dvdsk 2024-04-05 12:16:06 +02:00
parent a52a41bd86
commit 1fcf4b8363
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GPG key ID: 6CF9D20C5709A836
1 changed files with 10 additions and 16 deletions
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26
tests/seek.rs
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@ -129,15 +129,6 @@ fn seek_does_not_break_channel_order(
let mut source = get_rl(format).convert_samples();
const WINDOW: usize = 100;
let samples: Vec<_> = source
.by_ref()
.skip(beep_range.start)
.take(WINDOW)
.collect();
assert!(is_silent(&samples, channels, 0), "{samples:?}");
assert!(!is_silent(&samples, channels, 1), "{samples:?}");
let mut channel_offset = 0;
for offset in [1, 4, 7, 40, 41, 120, 179]
.map(|offset| offset as f32 / (source.sample_rate() as f32))
@ -149,7 +140,7 @@ fn seek_does_not_break_channel_order(
channel_offset = (channel_offset + 1) % 2;
source.try_seek(beep_start + offset).unwrap();
let samples: Vec<_> = source.by_ref().take(WINDOW).collect();
let samples: Vec<_> = source.by_ref().take(100).collect();
let channel0 = 0 + channel_offset;
assert!(
is_silent(&samples, source.channels(), channel0),
@ -190,10 +181,10 @@ where
> 0.1
})
.expect("track should not be silent")
.0;
let beep_starts = beep_starts.next_multiple_of(channels);
.0
.next_multiple_of(channels);
const BASICALLY_ZERO: f32 = 0.00001;
const BASICALLY_ZERO: f32 = 0.0001;
let beep_ends = samples
.chunks_exact(WINDOW)
.enumerate()
@ -206,15 +197,18 @@ where
.all(|s| s.abs() < BASICALLY_ZERO)
})
.expect("beep should end")
.0;
let beep_ends = beep_ends.next_multiple_of(channels);
.0
.next_multiple_of(channels);
let samples = &samples[beep_starts..beep_starts + 100];
assert!(is_silent(samples, channels as u16, 0), "{samples:?}");
assert!(!is_silent(samples, channels as u16, 1), "{samples:?}");
beep_starts..beep_ends
}
fn is_silent(samples: &[f32], channels: u16, channel: usize) -> bool {
assert_eq!(samples.len(), 100);
// dbg!(samples);
let channel = samples.iter().skip(channel).step_by(channels as usize);
let volume =
channel.map(|s| s.abs()).sum::<f32>() as f32 / samples.len() as f32 * channels as f32;