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fix: reduce redundant code by optimizing device name retrieval

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This commit is contained in:
Octopus136 2024-08-16 15:31:35 +08:00
parent 78630ddc67
commit 61d719d2aa
1 changed files with 2 additions and 5 deletions
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7
modules/videoio/src/cap_dshow.cpp
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@ -1382,14 +1382,11 @@ int videoInput::listDevices(bool silent){
// Find the description or friendly name. // Find the description or friendly name.
VARIANT varName; VARIANT varName;
VariantInit(&varName); VariantInit(&varName);
hr = pPropBag->Read(L"Description", &varName, 0); hr = pPropBag->Read(L"FriendlyName", &varName, 0);
if (FAILED(hr)) hr = pPropBag->Read(L"FriendlyName", &varName, 0); if (FAILED(hr)) hr = pPropBag->Read(L"Description", &varName, 0);
if (SUCCEEDED(hr)){ if (SUCCEEDED(hr)){
hr = pPropBag->Read(L"FriendlyName", &varName, 0);
int count = 0; int count = 0;
int maxLen = sizeof(deviceNames[0])/sizeof(deviceNames[0][0]) - 2; int maxLen = sizeof(deviceNames[0])/sizeof(deviceNames[0][0]) - 2;
while( varName.bstrVal[count] != 0x00 && count < maxLen) { while( varName.bstrVal[count] != 0x00 && count < maxLen) {