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WASAPI: Make format retrieval more robust.

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Public issue https://github.com/mackron/miniaudio/issues/660
This commit is contained in:
David Reid
2023-04-24 18:56:13 +10:00
parent e386435af9
commit 5541983ff0
1 changed files with 12 additions and 1 deletions
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miniaudio.h
+12 -1
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@@ -22104,7 +22104,18 @@ static ma_result ma_device_init_internal__wasapi(ma_context* pContext, ma_device
if (pNativeFormat->wFormatTag == WAVE_FORMAT_EXTENSIBLE) { if (pNativeFormat->wFormatTag == WAVE_FORMAT_EXTENSIBLE) {
MA_COPY_MEMORY(&wf, pNativeFormat, sizeof(MA_WAVEFORMATEXTENSIBLE)); MA_COPY_MEMORY(&wf, pNativeFormat, sizeof(MA_WAVEFORMATEXTENSIBLE));
} else { } else {
MA_COPY_MEMORY(&wf, pNativeFormat, ma_min(pNativeFormat->cbSize, sizeof(wf))); /* I've seen a case where cbSize was set to 0. Assume sizeof(WAVEFORMATEX) in this case. */
size_t cbSize = pNativeFormat->cbSize;
if (cbSize == 0) {
cbSize = sizeof(MA_WAVEFORMATEX);
}
/* Make sure we don't copy more than the capacity of `wf`. */
if (cbSize > sizeof(wf)) {
cbSize = sizeof(wf);
}
MA_COPY_MEMORY(&wf, pNativeFormat, cbSize);
} }
result = MA_SUCCESS; result = MA_SUCCESS;