Mac AVFoundation: minor bugfix using QTKit for devices not working with AVF (Blackmagic).

media/video/capture/mac/video_capture_device_mac.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/video/capture/mac/video_capture_device_mac.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 69 matching lines @@
     std::string device_vid;
     // Enumerate all devices found by AVFoundation, translate the info for each
     // to class Name and add it to |device_names|.
     for (NSString* key in capture_devices) {
       Name name([[capture_devices valueForKey:key] UTF8String],
           [key UTF8String], Name::AVFOUNDATION);
       device_names->push_back(name);
       // Extract the device's Vendor ID and compare to all blacklisted ones.
       device_vid = name.GetModel().substr(0, kVidPidSize);
       for (size_t i = 0; i < arraysize(kBlacklistedCameras); ++i) {
-        is_any_device_blacklisted |= (device_vid == kBlacklistedCameras[i].vid);
+        is_any_device_blacklisted |=
+            !strcasecmp(device_vid.c_str(), kBlacklistedCameras[i].vid);
         if (is_any_device_blacklisted)
           break;
       }
     }
     // If there is any device blacklisted in the system, walk the QTKit device
     // list and add those devices with a blacklisted name to the |device_names|.
     // AVFoundation and QTKit device lists partially overlap, so add a "QTKit"
     // prefix to the latter ones to distinguish them from the AVFoundation ones.
     if (is_any_device_blacklisted) {
       capture_devices = [VideoCaptureDeviceQTKit deviceNames];
@@ skipping 274 matching lines @@
  if (![capture_device_ setCaptureHeight:capture_format_.frame_size.height()
                                   width:capture_format_.frame_size.width()
                               frameRate:capture_format_.frame_rate]) {
    ReceiveError("Could not configure capture device.");
    return false;
  }
  return true;
 }
 
 } // namespace media