media/devices/win32deviceinfo.cc

/*
 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "webrtc/media/devices/deviceinfo.h"

namespace cricket {

bool GetUsbId(const Device& device, std::string* usb_id) {
  // Both PID and VID are 4 characters.
  const int id_size = 4;
  const char vid[] = "vid_";  // Also contains '\0'.
  const size_t vid_location = device.id.find(vid);
  if (vid_location == std::string::npos ||
      vid_location + sizeof(vid) - 1 + id_size > device.id.size()) {
    return false;
  }
  const char pid[] = "pid_";
  const size_t pid_location = device.id.find(pid);
  if (pid_location == std::string::npos ||
      pid_location + sizeof(pid) - 1 + id_size > device.id.size()) {
    return false;
  }
  std::string id_vendor = device.id.substr(vid_location + sizeof(vid) - 1,
                                           id_size);
  std::string id_product = device.id.substr(pid_location + sizeof(pid) -1,
                                            id_size);
  usb_id->clear();
  usb_id->append(id_vendor);
  usb_id->append(":");
  usb_id->append(id_product);
  return true;
}

bool GetUsbVersion(const Device& device, std::string* usb_version) {
  return false;
}

}  // namespace cricket