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write unclamped float per default

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This commit is contained in:
Ahmet Inan 2025-07-20 12:05:16 +02:00
commit 81a5a8869b
1 changed files with 13 additions and 14 deletions
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27
wav.hh
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@ -170,26 +170,20 @@ public:
min = -8388608;
max = 8388607;
break;
case 32:
offset = 0;
factor = 2147483647;
min = -2147483648;
max = 2147483647;
break;
default:
bits = 16;
bytes = 2;
bits = 32;
bytes = 4;
offset = 0;
factor = 32767;
min = -32768;
max = 32767;
factor = 1;
min = -1;
max = 1;
}
os.write("RIFF", 4); // ChunkID
writeLE(36, 4); // ChunkSize
os.write("WAVE", 4); // Format
os.write("fmt ", 4); // Subchunk1ID
writeLE(16, 4); // Subchunk1Size
writeLE(1, 2); // AudioFormat
writeLE(bits == 32 ? 3 : 1, 2); // AudioFormat
writeLE(channels_, 2); // NumChannels
writeLE(rate_, 4); // SampleRate
writeLE(rate_ * channels_ * bytes, 4); // ByteRate
@ -212,8 +206,13 @@ public:
stride = channels_;
for (int n = 0; n < num; ++n) {
for (int c = 0; c < channels_; ++c) {
TYPE v = TYPE(offset) + TYPE(factor) * buf[stride * n + c];
writeLE(std::nearbyint(std::min(std::max(v, TYPE(min)), TYPE(max))), bytes);
if (bytes == 4) {
float v = buf[stride * n + c];
writeLE(*reinterpret_cast<int *>(&v), 4);
} else {
TYPE v = TYPE(offset) + TYPE(factor) * buf[stride * n + c];
writeLE(std::nearbyint(std::min(std::max(v, TYPE(min)), TYPE(max))), bytes);
}
}
}
}