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[channel,rdpecam] uvc_h264 xu_descriptor pointer fix

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This commit is contained in:
oleg0421
2025-02-10 22:08:35 -08:00
parent 2e350f86c9
commit 2ac2caf6fc
1 changed files with 4 additions and 3 deletions
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7
channels/rdpecam/client/v4l/uvc_h264.c
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@@ -375,9 +375,10 @@ static uint8_t get_guid_unit_id_from_device(libusb_device* device, const uint8_t
interface->bInterfaceSubClass != USB_VIDEO_CONTROL)
continue;
const xu_descriptor* desc = (const xu_descriptor*)interface->extra;
while (((const uint8_t*)desc) < interface->extra + interface->extra_length)
const uint8_t* ptr = interface->extra;
while (ptr < interface->extra + interface->extra_length)
{
const xu_descriptor* desc = (const xu_descriptor*)ptr;
if (desc->bDescriptorType == USB_VIDEO_CONTROL_INTERFACE &&
desc->bDescriptorSubType == USB_VIDEO_CONTROL_XU_TYPE &&
memcmp(desc->guidExtensionCode, guid, 16) == 0)
@@ -390,7 +391,7 @@ static uint8_t get_guid_unit_id_from_device(libusb_device* device, const uint8_t
ddesc.idVendor, ddesc.idProduct, unit_id);
return unit_id;
}
desc++;
ptr += desc->bLength;
}
}
}