1/*
2 *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_DTMF_QUEUE_H_
12#define WEBRTC_MODULES_RTP_RTCP_SOURCE_DTMF_QUEUE_H_
13
14#include "webrtc/modules/rtp_rtcp/source/rtp_rtcp_config.h"
15#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
16#include "webrtc/typedefs.h"
17
18namespace webrtc {
19class DTMFqueue {
20 public:
21  DTMFqueue();
22  virtual ~DTMFqueue();
23
24  int32_t AddDTMF(uint8_t dtmf_key, uint16_t len, uint8_t level);
25  int8_t NextDTMF(uint8_t* dtmf_key, uint16_t* len, uint8_t* level);
26  bool PendingDTMF();
27  void ResetDTMF();
28
29 private:
30  CriticalSectionWrapper* dtmf_critsect_;
31  uint8_t next_empty_index_;
32  uint8_t dtmf_key_[DTMF_OUTBAND_MAX];
33  uint16_t dtmf_length[DTMF_OUTBAND_MAX];
34  uint8_t dtmf_level_[DTMF_OUTBAND_MAX];
35};
36}  // namespace webrtc
37
38#endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_DTMF_QUEUE_H_
39