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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 "RTCSessionDescription+internal.h"
     33 
     34 @implementation RTCSessionDescription {
     35   NSString *_description;
     36   NSString *_type;
     37 }
     38 
     39 - (id)initWithType:(NSString *)type sdp:(NSString *)sdp {
     40   if (!type || !sdp) {
     41     NSAssert(NO, @"nil arguments not allowed");
     42     return nil;
     43   }
     44   if ((self = [super init])) {
     45     _description = sdp;
     46     _type = type;
     47   }
     48   return self;
     49 }
     50 
     51 @end
     52 
     53 @implementation RTCSessionDescription (Internal)
     54 
     55 - (id)initWithSessionDescription:
     56         (const webrtc::SessionDescriptionInterface *)sessionDescription {
     57   if (!sessionDescription) {
     58     NSAssert(NO, @"nil arguments not allowed");
     59     self = nil;
     60     return nil;
     61   }
     62   if ((self = [super init])) {
     63     const std::string &type = sessionDescription->type();
     64     std::string sdp;
     65     if (!sessionDescription->ToString(&sdp)) {
     66       NSAssert(NO, @"Invalid SessionDescriptionInterface.");
     67       self = nil;
     68     } else {
     69       _description = @(sdp.c_str());
     70       _type = @(type.c_str());
     71     }
     72   }
     73   return self;
     74 }
     75 
     76 - (webrtc::SessionDescriptionInterface *)sessionDescription {
     77   return webrtc::CreateSessionDescription(
     78       [self.type UTF8String], [self.description UTF8String], NULL);
     79 }
     80 
     81 @end
     82