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support whatever float wav file SoX is producing

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This commit is contained in:
Ahmet Inan 2025-07-22 11:12:18 +02:00
commit 8c5238d331
1 changed files with 16 additions and 3 deletions
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19
wav.hh
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@ -52,7 +52,7 @@ public:
if (cmp4("fmt ", Subchunk1ID))
return;
int Subchunk1Size = readLE(4);
if (Subchunk1Size != 16)
if (Subchunk1Size != 16 && Subchunk1Size != 18)
return;
int AudioFormat = readLE(2);
if (AudioFormat != 1 && AudioFormat != 3)
@ -73,6 +73,19 @@ public:
return;
if (rate_ * bytes * channels_ != ByteRate)
return;
if (Subchunk1Size == 18) {
int ExtSize = readLE(2);
if (ExtSize != 0)
return;
char SubchunkID[4];
is.read(SubchunkID, 4);
if (cmp4("fact", SubchunkID))
return;
int SubchunkSize = readLE(4);
if (SubchunkSize != 4)
return;
frames_ = readLE(4);
}
char Subchunk2ID[4];
is.read(Subchunk2ID, 4);
if (cmp4("data", Subchunk2ID))
@ -80,8 +93,8 @@ public:
int Subchunk2Size = readLE(4);
if (36 + Subchunk2Size > ChunkSize)
return;
frames_ = Subchunk2Size / (bytes * channels_);
if (Subchunk1Size == 16)
frames_ = Subchunk2Size / (bytes * channels_);
switch (bits_) {
case 8:
offset = 128;