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      1 /*
      2  * libjingle
      3  * Copyright 2004 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 #ifndef TALK_SESSION_MEDIA_SOUNDCLIP_H_
     29 #define TALK_SESSION_MEDIA_SOUNDCLIP_H_
     30 
     31 #include "talk/base/scoped_ptr.h"
     32 #include "talk/media/base/mediaengine.h"
     33 
     34 namespace talk_base {
     35 
     36 class Thread;
     37 
     38 }
     39 
     40 namespace cricket {
     41 
     42 // Soundclip wraps SoundclipMedia to support marshalling calls to the proper
     43 // thread.
     44 class Soundclip : private talk_base::MessageHandler {
     45  public:
     46   Soundclip(talk_base::Thread* thread, SoundclipMedia* soundclip_media);
     47 
     48   // Plays a sound out to the speakers with the given audio stream. The stream
     49   // must be 16-bit little-endian 16 kHz PCM. If a stream is already playing
     50   // on this Soundclip, it is stopped. If clip is NULL, nothing is played.
     51   // Returns whether it was successful.
     52   bool PlaySound(const void* clip,
     53                  int len,
     54                  SoundclipMedia::SoundclipFlags flags);
     55 
     56  private:
     57   bool PlaySound_w(const void* clip,
     58                    int len,
     59                    SoundclipMedia::SoundclipFlags flags);
     60 
     61   // From MessageHandler
     62   virtual void OnMessage(talk_base::Message* message);
     63 
     64   talk_base::Thread* worker_thread_;
     65   talk_base::scoped_ptr<SoundclipMedia> soundclip_media_;
     66 };
     67 
     68 }  // namespace cricket
     69 
     70 #endif  // TALK_SESSION_MEDIA_SOUNDCLIP_H_
     71