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/*
* Copyright (c) 2015 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_CODECS_G711_AUDIO_DECODER_PCM_H_
#define MODULES_AUDIO_CODING_CODECS_G711_AUDIO_DECODER_PCM_H_
#include <stddef.h>
#include <stdint.h>
#include <vector>
#include "api/audio_codecs/audio_decoder.h"
#include "rtc_base/buffer.h"
#include "rtc_base/checks.h"
namespace webrtc {
class AudioDecoderPcmU final : public AudioDecoder {
public:
explicit AudioDecoderPcmU(size_t num_channels) : num_channels_(num_channels) {
RTC_DCHECK_GE(num_channels, 1);
}
AudioDecoderPcmU(const AudioDecoderPcmU&) = delete;
AudioDecoderPcmU& operator=(const AudioDecoderPcmU&) = delete;
void Reset() override;
std::vector<ParseResult> ParsePayload(rtc::Buffer&& payload,
uint32_t timestamp) override;
int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override;
int PacketDurationRedundant(const uint8_t* encoded,
size_t encoded_len) const override;
int SampleRateHz() const override;
size_t Channels() const override;
protected:
int DecodeInternal(const uint8_t* encoded,
size_t encoded_len,
int sample_rate_hz,
int16_t* decoded,
SpeechType* speech_type) override;
private:
const size_t num_channels_;
};
class AudioDecoderPcmA final : public AudioDecoder {
public:
explicit AudioDecoderPcmA(size_t num_channels) : num_channels_(num_channels) {
RTC_DCHECK_GE(num_channels, 1);
}
AudioDecoderPcmA(const AudioDecoderPcmA&) = delete;
AudioDecoderPcmA& operator=(const AudioDecoderPcmA&) = delete;
void Reset() override;
std::vector<ParseResult> ParsePayload(rtc::Buffer&& payload,
uint32_t timestamp) override;
int PacketDuration(const uint8_t* encoded, size_t encoded_len) const override;
int PacketDurationRedundant(const uint8_t* encoded,
size_t encoded_len) const override;
int SampleRateHz() const override;
size_t Channels() const override;
protected:
int DecodeInternal(const uint8_t* encoded,
size_t encoded_len,
int sample_rate_hz,
int16_t* decoded,
SpeechType* speech_type) override;
private:
const size_t num_channels_;
};
} // namespace webrtc
#endif // MODULES_AUDIO_CODING_CODECS_G711_AUDIO_DECODER_PCM_H_
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