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d00ce747c7
Bug: webrtc:12338 Change-Id: I02613d9fca45d00e2477f334b7a0416e7912e26b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227037 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34621}
79 lines
2.8 KiB
C++
79 lines
2.8 KiB
C++
/*
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* Copyright (c) 2015 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 MODULES_AUDIO_CODING_CODECS_G722_AUDIO_DECODER_G722_H_
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#define MODULES_AUDIO_CODING_CODECS_G722_AUDIO_DECODER_G722_H_
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#include "api/audio_codecs/audio_decoder.h"
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#include "rtc_base/constructor_magic.h"
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typedef struct WebRtcG722DecInst G722DecInst;
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namespace webrtc {
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class AudioDecoderG722Impl final : public AudioDecoder {
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public:
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AudioDecoderG722Impl();
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~AudioDecoderG722Impl() override;
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bool HasDecodePlc() const override;
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void Reset() override;
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std::vector<ParseResult> ParsePayload(rtc::Buffer&& payload,
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uint32_t timestamp) override;
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int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override;
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int SampleRateHz() const override;
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size_t Channels() const override;
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protected:
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int DecodeInternal(const uint8_t* encoded,
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size_t encoded_len,
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int sample_rate_hz,
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int16_t* decoded,
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SpeechType* speech_type) override;
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private:
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G722DecInst* dec_state_;
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RTC_DISALLOW_COPY_AND_ASSIGN(AudioDecoderG722Impl);
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};
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class AudioDecoderG722StereoImpl final : public AudioDecoder {
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public:
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AudioDecoderG722StereoImpl();
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~AudioDecoderG722StereoImpl() override;
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void Reset() override;
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std::vector<ParseResult> ParsePayload(rtc::Buffer&& payload,
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uint32_t timestamp) override;
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int SampleRateHz() const override;
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size_t Channels() const override;
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protected:
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int DecodeInternal(const uint8_t* encoded,
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size_t encoded_len,
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int sample_rate_hz,
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int16_t* decoded,
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SpeechType* speech_type) override;
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private:
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// Splits the stereo-interleaved payload in `encoded` into separate payloads
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// for left and right channels. The separated payloads are written to
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// `encoded_deinterleaved`, which must hold at least `encoded_len` samples.
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// The left channel starts at offset 0, while the right channel starts at
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// offset encoded_len / 2 into `encoded_deinterleaved`.
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void SplitStereoPacket(const uint8_t* encoded,
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size_t encoded_len,
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uint8_t* encoded_deinterleaved);
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G722DecInst* dec_state_left_;
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G722DecInst* dec_state_right_;
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RTC_DISALLOW_COPY_AND_ASSIGN(AudioDecoderG722StereoImpl);
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_CODING_CODECS_G722_AUDIO_DECODER_G722_H_
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