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10542f21c8
Mechanically generated by running this command: tools_webrtc/do-renames.sh update all-renames.txt && git cl format Then manually updating: tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc Bug: webrtc:10159 No-Presubmit: true No-Tree-Checks: true No-Try: true Change-Id: I54824cd91dada8fc3ee3d098f971bc319d477833 Reviewed-on: https://webrtc-review.googlesource.com/c/115653 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26226}
100 lines
4 KiB
C++
100 lines
4 KiB
C++
/*
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* Copyright 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef API_DTMF_SENDER_INTERFACE_H_
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#define API_DTMF_SENDER_INTERFACE_H_
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#include <string>
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#include "api/media_stream_interface.h"
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#include "rtc_base/ref_count.h"
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namespace webrtc {
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// DtmfSender callback interface, used to implement RTCDtmfSender events.
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// Applications should implement this interface to get notifications from the
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// DtmfSender.
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class DtmfSenderObserverInterface {
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public:
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// Triggered when DTMF |tone| is sent.
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// If |tone| is empty that means the DtmfSender has sent out all the given
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// tones.
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// The callback includes the state of the tone buffer at the time when
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// the tone finished playing.
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virtual void OnToneChange(const std::string& tone,
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const std::string& tone_buffer) {}
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// DEPRECATED: Older API without tone buffer.
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// TODO(bugs.webrtc.org/9725): Remove old API and default implementation
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// when old callers are gone.
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virtual void OnToneChange(const std::string& tone) {}
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protected:
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virtual ~DtmfSenderObserverInterface() = default;
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};
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// The interface of native implementation of the RTCDTMFSender defined by the
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// WebRTC W3C Editor's Draft.
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// See: https://www.w3.org/TR/webrtc/#peer-to-peer-dtmf
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class DtmfSenderInterface : public rtc::RefCountInterface {
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public:
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// Used to receive events from the DTMF sender. Only one observer can be
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// registered at a time. UnregisterObserver should be called before the
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// observer object is destroyed.
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virtual void RegisterObserver(DtmfSenderObserverInterface* observer) = 0;
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virtual void UnregisterObserver() = 0;
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// Returns true if this DtmfSender is capable of sending DTMF. Otherwise
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// returns false. To be able to send DTMF, the associated RtpSender must be
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// able to send packets, and a "telephone-event" codec must be negotiated.
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virtual bool CanInsertDtmf() = 0;
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// Queues a task that sends the DTMF |tones|. The |tones| parameter is treated
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// as a series of characters. The characters 0 through 9, A through D, #, and
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// * generate the associated DTMF tones. The characters a to d are equivalent
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// to A to D. The character ',' indicates a delay of 2 seconds before
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// processing the next character in the tones parameter.
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//
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// Unrecognized characters are ignored.
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//
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// The |duration| parameter indicates the duration in ms to use for each
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// character passed in the |tones| parameter. The duration cannot be more
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// than 6000 or less than 70.
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//
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// The |inter_tone_gap| parameter indicates the gap between tones in ms. The
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// |inter_tone_gap| must be at least 50 ms but should be as short as
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// possible.
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//
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// If InsertDtmf is called on the same object while an existing task for this
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// object to generate DTMF is still running, the previous task is canceled.
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// Returns true on success and false on failure.
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virtual bool InsertDtmf(const std::string& tones,
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int duration,
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int inter_tone_gap) = 0;
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// Returns the tones remaining to be played out.
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virtual std::string tones() const = 0;
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// Returns the current tone duration value in ms.
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// This value will be the value last set via the InsertDtmf() method, or the
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// default value of 100 ms if InsertDtmf() was never called.
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virtual int duration() const = 0;
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// Returns the current value of the between-tone gap in ms.
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// This value will be the value last set via the InsertDtmf() method, or the
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// default value of 50 ms if InsertDtmf() was never called.
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virtual int inter_tone_gap() const = 0;
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protected:
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~DtmfSenderInterface() override = default;
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};
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} // namespace webrtc
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#endif // API_DTMF_SENDER_INTERFACE_H_
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