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This commit is contained in:
Eric Coissac
2025-11-01 21:10:57 +01:00
parent ec0a0e675e
commit 6bce26c4fc
26 changed files with 4481 additions and 1048 deletions
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44
pmoaudio/examples/audio_chunk_api.rs
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@@ -30,12 +30,20 @@ fn example_create_chunks() {
// Chunk I32 stéréo
let stereo_i32 = vec![[1000i32, 2000i32], [3000i32, 4000i32]];
let chunk_i32 = AudioChunkData::new(stereo_i32, 48000, 0.0);
println!("Chunk I32: {} frames @ {}Hz", chunk_i32.len(), chunk_i32.sample_rate());
println!(
"Chunk I32: {} frames @ {}Hz",
chunk_i32.len(),
chunk_i32.sample_rate()
);
// Chunk F32 stéréo (normalisé [-1.0, 1.0])
let stereo_f32 = vec![[0.5f32, -0.5f32], [0.8f32, -0.8f32]];
let chunk_f32 = AudioChunkData::new(stereo_f32, 48000, 0.0);
println!("Chunk F32: {} frames @ {}Hz", chunk_f32.len(), chunk_f32.sample_rate());
println!(
"Chunk F32: {} frames @ {}Hz",
chunk_f32.len(),
chunk_f32.sample_rate()
);
// Chunk depuis canaux séparés
let left = vec![100i32, 200i32, 300i32];
@@ -77,7 +85,10 @@ fn example_conversions() {
// Utilisation des traits From/Into
let chunk_i16 = AudioChunkData::new(vec![[1000i16, 2000i16]], 48000, 0.0);
let chunk_i32_from_i16: std::sync::Arc<AudioChunkData<i32>> = (&*chunk_i16).into();
println!("\nConversion I16 → I32 via Into: {} frames", chunk_i32_from_i16.len());
println!(
"\nConversion I16 → I32 via Into: {} frames",
chunk_i32_from_i16.len()
);
println!();
}
@@ -163,30 +174,33 @@ fn example_gain_manipulation() {
println!(">>> Manipulation du gain\n");
// Créer un segment
let segment = AudioSegment::new_chunk(
0,
0.0,
vec![[1000i32, 2000i32]],
48000,
BitDepth::B32,
);
let segment = AudioSegment::new_chunk(0, 0.0, vec![[1000i32, 2000i32]], 48000, BitDepth::B32);
println!("Gain initial: {} dB", segment.gain_db().unwrap());
// Définir un gain absolu
let segment_6db = segment.with_gain_db(6.0).unwrap();
println!("Après with_gain_db(6.0): {} dB", segment_6db.gain_db().unwrap());
println!(
"Après with_gain_db(6.0): {} dB",
segment_6db.gain_db().unwrap()
);
// Ajuster le gain (relatif)
let segment_9db = segment_6db.adjust_gain_db(3.0).unwrap();
println!("Après adjust_gain_db(+3.0): {} dB", segment_9db.gain_db().unwrap());
println!(
"Après adjust_gain_db(+3.0): {} dB",
segment_9db.gain_db().unwrap()
);
// Les segments originaux ne sont pas modifiés (immutabilité)
println!("Gain du segment original: {} dB", segment.gain_db().unwrap());
println!(
"Gain du segment original: {} dB",
segment.gain_db().unwrap()
);
// Conversion gain linéaire ↔ dB
let linear_gain = db_to_linear(6.0);
let gain_db = linear_to_db(linear_gain);
let linear_gain = gain_linear_from_db(6.0);
let gain_db = gain_db_from_linear(linear_gain);
println!("\n6 dB = {:.4}x (linéaire)", linear_gain);
println!("{:.4}x = {:.2} dB", linear_gain, gain_db);