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64 lines
2.7 KiB
C
64 lines
2.7 KiB
C
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/*
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* Copyright (c) 2013 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 WEBRTC_MODULES_AUDIO_CODING_NETEQ_DECISION_LOGIC_FAX_H_
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#define WEBRTC_MODULES_AUDIO_CODING_NETEQ_DECISION_LOGIC_FAX_H_
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#include "webrtc/base/constructormagic.h"
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#include "webrtc/modules/audio_coding/neteq/decision_logic.h"
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#include "webrtc/typedefs.h"
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namespace webrtc {
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// Implementation of the DecisionLogic class for playout modes kPlayoutFax and
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// kPlayoutOff.
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class DecisionLogicFax : public DecisionLogic {
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public:
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// Constructor.
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DecisionLogicFax(int fs_hz,
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int output_size_samples,
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NetEqPlayoutMode playout_mode,
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DecoderDatabase* decoder_database,
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const PacketBuffer& packet_buffer,
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DelayManager* delay_manager,
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BufferLevelFilter* buffer_level_filter)
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: DecisionLogic(fs_hz, output_size_samples, playout_mode,
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decoder_database, packet_buffer, delay_manager,
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buffer_level_filter) {
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}
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// Destructor.
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virtual ~DecisionLogicFax() {}
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protected:
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// Returns the operation that should be done next. |sync_buffer| and |expand|
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// are provided for reference. |decoder_frame_length| is the number of samples
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// obtained from the last decoded frame. If there is a packet available, the
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// packet header should be supplied in |packet_header|; otherwise it should
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// be NULL. The mode resulting form the last call to NetEqImpl::GetAudio is
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// supplied in |prev_mode|. If there is a DTMF event to play, |play_dtmf|
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// should be set to true. The output variable |reset_decoder| will be set to
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// true if a reset is required; otherwise it is left unchanged (i.e., it can
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// remain true if it was true before the call).
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virtual Operations GetDecisionSpecialized(const SyncBuffer& sync_buffer,
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const Expand& expand,
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int decoder_frame_length,
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const RTPHeader* packet_header,
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Modes prev_mode,
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bool play_dtmf,
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bool* reset_decoder) OVERRIDE;
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private:
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DISALLOW_COPY_AND_ASSIGN(DecisionLogicFax);
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_DECISION_LOGIC_FAX_H_
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