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_MEDIA_BASE_VOICEPROCESSOR_H_ 29 #define TALK_MEDIA_BASE_VOICEPROCESSOR_H_ 30 31 #include "talk/media/base/audioframe.h" 32 #include "webrtc/base/basictypes.h" 33 #include "webrtc/base/sigslot.h" 34 35 namespace cricket { 36 37 enum MediaProcessorDirection { 38 MPD_INVALID = 0, 39 MPD_RX = 1 << 0, 40 MPD_TX = 1 << 1, 41 MPD_RX_AND_TX = MPD_RX | MPD_TX, 42 }; 43 44 class VoiceProcessor : public sigslot::has_slots<> { 45 public: ~VoiceProcessor()46 virtual ~VoiceProcessor() {} 47 // Contents of frame may be manipulated by the processor. 48 // The processed data is expected to be the same size as the 49 // original data. 50 virtual void OnFrame(uint32 ssrc, 51 MediaProcessorDirection direction, 52 AudioFrame* frame) = 0; 53 }; 54 55 } // namespace cricket 56 #endif // TALK_MEDIA_BASE_VOICEPROCESSOR_H_ 57