2018-10-30 14:59:42 +08:00
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/*
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2020-04-04 20:30:09 +08:00
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* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
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2018-10-30 14:59:42 +08:00
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*
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2021-01-17 18:31:50 +08:00
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* This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
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2018-10-30 14:59:42 +08:00
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*
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2020-04-04 20:30:09 +08:00
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* Use of this source code is governed by MIT license that can be found in the
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* LICENSE file in the root of the source tree. All contributing project authors
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* may be found in the AUTHORS file in the root of the source tree.
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2018-10-30 14:59:42 +08:00
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*/
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#ifndef ZLMEDIAKIT_AAC_H
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#define ZLMEDIAKIT_AAC_H
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#include "Frame.h"
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#include "Track.h"
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2020-05-11 23:25:12 +08:00
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#define ADTS_HEADER_LEN 7
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2018-10-30 14:59:42 +08:00
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namespace mediakit{
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2021-01-17 18:31:50 +08:00
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string makeAacConfig(const uint8_t *hex, size_t length);
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int getAacFrameLength(const uint8_t *hex, size_t length);
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int dumpAacConfig(const string &config, size_t length, uint8_t *out, size_t out_size);
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2020-06-11 19:21:46 +08:00
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bool parseAacConfig(const string &config, int &samplerate, int &channels);
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2018-10-30 14:59:42 +08:00
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/**
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* aac音频通道
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*/
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class AACTrack : public AudioTrack{
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public:
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2021-02-05 11:51:16 +08:00
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using Ptr = std::shared_ptr<AACTrack>;
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2018-10-30 14:59:42 +08:00
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/**
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* 延后获取adts头信息
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* 在随后的inputFrame中获取adts头信息
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*/
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2021-02-05 11:51:16 +08:00
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AACTrack() = default;
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2018-10-30 14:59:42 +08:00
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/**
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* 构造aac类型的媒体
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2020-06-11 17:40:09 +08:00
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* @param aac_cfg aac配置信息
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2018-10-30 14:59:42 +08:00
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*/
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2021-02-05 11:51:16 +08:00
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AACTrack(const string &aac_cfg);
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2018-10-30 14:59:42 +08:00
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/**
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2020-06-11 17:40:09 +08:00
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* 获取aac 配置信息
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2018-10-30 14:59:42 +08:00
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*/
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2021-02-05 11:51:16 +08:00
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const string &getAacCfg() const;
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2020-08-08 12:19:04 +08:00
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2021-02-05 11:51:16 +08:00
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bool ready() override;
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CodecId getCodecId() const override;
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int getAudioChannel() const override;
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int getAudioSampleRate() const override;
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int getAudioSampleBit() const override;
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2021-09-27 13:12:53 +08:00
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bool inputFrame(const Frame::Ptr &frame) override;
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2020-08-08 12:19:04 +08:00
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private:
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void onReady();
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Sdp::Ptr getSdp() override;
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Track::Ptr clone() override;
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2021-09-27 13:12:53 +08:00
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bool inputFrame_l(const Frame::Ptr &frame);
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2020-05-11 22:33:10 +08:00
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2018-10-30 14:59:42 +08:00
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private:
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string _cfg;
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2021-02-05 11:51:16 +08:00
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int _channel = 0;
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2018-10-30 14:59:42 +08:00
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int _sampleRate = 0;
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int _sampleBit = 16;
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2018-10-30 17:58:10 +08:00
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};
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2018-10-30 14:59:42 +08:00
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}//namespace mediakit
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2020-05-11 22:33:10 +08:00
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#endif //ZLMEDIAKIT_AAC_H
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