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      1 /*
      2  * libjingle
      3  * Copyright 2013 Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #if !defined(__has_feature) || !__has_feature(objc_arc)
     29 #error "This file requires ARC support."
     30 #endif
     31 
     32 #import "RTCMediaConstraints+Internal.h"
     33 
     34 #import "RTCPair.h"
     35 
     36 #include "webrtc/base/scoped_ptr.h"
     37 
     38 // TODO(hughv):  Add accessors for mandatory and optional constraints.
     39 // TODO(hughv):  Add description.
     40 
     41 @implementation RTCMediaConstraints {
     42   rtc::scoped_ptr<webrtc::RTCMediaConstraintsNative> _constraints;
     43   webrtc::MediaConstraintsInterface::Constraints _mandatory;
     44   webrtc::MediaConstraintsInterface::Constraints _optional;
     45 }
     46 
     47 - (id)initWithMandatoryConstraints:(NSArray*)mandatory
     48                optionalConstraints:(NSArray*)optional {
     49   if ((self = [super init])) {
     50     _mandatory = [[self class] constraintsFromArray:mandatory];
     51     _optional = [[self class] constraintsFromArray:optional];
     52     _constraints.reset(
     53         new webrtc::RTCMediaConstraintsNative(_mandatory, _optional));
     54   }
     55   return self;
     56 }
     57 
     58 + (webrtc::MediaConstraintsInterface::Constraints)constraintsFromArray:
     59                                                       (NSArray*)array {
     60   webrtc::MediaConstraintsInterface::Constraints constraints;
     61   for (RTCPair* pair in array) {
     62     constraints.push_back(webrtc::MediaConstraintsInterface::Constraint(
     63         [pair.key UTF8String], [pair.value UTF8String]));
     64   }
     65   return constraints;
     66 }
     67 
     68 @end
     69 
     70 @implementation RTCMediaConstraints (internal)
     71 
     72 - (const webrtc::RTCMediaConstraintsNative*)constraints {
     73   return _constraints.get();
     74 }
     75 
     76 @end
     77