mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 22:00:47 +01:00
a4d873786f
This CL was generated by running git ls-files | grep -P "(\.h|\.cc)$" | grep -v 'sdk/' | grep -v 'rtc_base/ssl_' | \ grep -v 'fake_rtc_certificate_generator.h' | grep -v 'modules/audio_device/win/' | \ grep -v 'system_wrappers/source/clock.cc' | grep -v 'rtc_base/trace_event.h' | \ grep -v 'modules/audio_coding/codecs/ilbc/' | grep -v 'screen_capturer_mac.h' | \ grep -v 'spl_inl_mips.h' | grep -v 'data_size_unittest.cc' | grep -v 'timestamp_unittest.cc' \ | xargs clang-format -i ; git cl format Most of these changes are clang-format grouping and reordering includes differently. Bug: webrtc:9340 Change-Id: Ic83ddbc169bfacd21883e381b5181c3dd4fe8a63 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144051 Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28505}
105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#ifndef MODULES_AUDIO_CODING_NETEQ_DTMF_BUFFER_H_
|
|
#define MODULES_AUDIO_CODING_NETEQ_DTMF_BUFFER_H_
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include <list>
|
|
|
|
#include "rtc_base/constructor_magic.h"
|
|
|
|
namespace webrtc {
|
|
|
|
struct DtmfEvent {
|
|
uint32_t timestamp;
|
|
int event_no;
|
|
int volume;
|
|
int duration;
|
|
bool end_bit;
|
|
|
|
// Constructors
|
|
DtmfEvent()
|
|
: timestamp(0), event_no(0), volume(0), duration(0), end_bit(false) {}
|
|
DtmfEvent(uint32_t ts, int ev, int vol, int dur, bool end)
|
|
: timestamp(ts), event_no(ev), volume(vol), duration(dur), end_bit(end) {}
|
|
};
|
|
|
|
// This is the buffer holding DTMF events while waiting for them to be played.
|
|
class DtmfBuffer {
|
|
public:
|
|
enum BufferReturnCodes {
|
|
kOK = 0,
|
|
kInvalidPointer,
|
|
kPayloadTooShort,
|
|
kInvalidEventParameters,
|
|
kInvalidSampleRate
|
|
};
|
|
|
|
// Set up the buffer for use at sample rate |fs_hz|.
|
|
explicit DtmfBuffer(int fs_hz);
|
|
|
|
virtual ~DtmfBuffer();
|
|
|
|
// Flushes the buffer.
|
|
virtual void Flush();
|
|
|
|
// Static method to parse 4 bytes from |payload| as a DTMF event (RFC 4733)
|
|
// and write the parsed information into the struct |event|. Input variable
|
|
// |rtp_timestamp| is simply copied into the struct.
|
|
static int ParseEvent(uint32_t rtp_timestamp,
|
|
const uint8_t* payload,
|
|
size_t payload_length_bytes,
|
|
DtmfEvent* event);
|
|
|
|
// Inserts |event| into the buffer. The method looks for a matching event and
|
|
// merges the two if a match is found.
|
|
virtual int InsertEvent(const DtmfEvent& event);
|
|
|
|
// Checks if a DTMF event should be played at time |current_timestamp|. If so,
|
|
// the method returns true; otherwise false. The parameters of the event to
|
|
// play will be written to |event|.
|
|
virtual bool GetEvent(uint32_t current_timestamp, DtmfEvent* event);
|
|
|
|
// Number of events in the buffer.
|
|
virtual size_t Length() const;
|
|
|
|
virtual bool Empty() const;
|
|
|
|
// Set a new sample rate.
|
|
virtual int SetSampleRate(int fs_hz);
|
|
|
|
private:
|
|
typedef std::list<DtmfEvent> DtmfList;
|
|
|
|
int max_extrapolation_samples_;
|
|
int frame_len_samples_; // TODO(hlundin): Remove this later.
|
|
|
|
// Compares two events and returns true if they are the same.
|
|
static bool SameEvent(const DtmfEvent& a, const DtmfEvent& b);
|
|
|
|
// Merges |event| to the event pointed out by |it|. The method checks that
|
|
// the two events are the same (using the SameEvent method), and merges them
|
|
// if that was the case, returning true. If the events are not the same, false
|
|
// is returned.
|
|
bool MergeEvents(DtmfList::iterator it, const DtmfEvent& event);
|
|
|
|
// Method used by the sort algorithm to rank events in the buffer.
|
|
static bool CompareEvents(const DtmfEvent& a, const DtmfEvent& b);
|
|
|
|
DtmfList buffer_;
|
|
|
|
RTC_DISALLOW_COPY_AND_ASSIGN(DtmfBuffer);
|
|
};
|
|
|
|
} // namespace webrtc
|
|
#endif // MODULES_AUDIO_CODING_NETEQ_DTMF_BUFFER_H_
|