ZLMediaKit/src/Common/Device.cpp

/*
 * Copyright (c) 2016-present The ZLMediaKit project authors. All Rights Reserved.
 *
 * This file is part of ZLMediaKit(https://github.com/ZLMediaKit/ZLMediaKit).
 *
 * Use of this source code is governed by MIT-like license that can be found in the
 * LICENSE file in the root of the source tree. All contributing project authors
 * may be found in the AUTHORS file in the root of the source tree.
 */

#include "Device.h"
#include "Util/logger.h"
#include "Util/base64.h"
#include "Extension/Factory.h"
#ifdef ENABLE_FAAC
#include "Codec/AACEncoder.h"
#endif //ENABLE_FAAC

#ifdef ENABLE_X264
#include "Codec/H264Encoder.h"
#endif //ENABLE_X264
using namespace toolkit;
using namespace std;

namespace mediakit {

bool DevChannel::inputYUV(char *yuv[3], int linesize[3], uint64_t cts) {
#ifdef ENABLE_X264
    //TimeTicker1(50);
    if (!_pH264Enc) {
        _pH264Enc.reset(new H264Encoder());
        if (!_pH264Enc->init(_video->iWidth, _video->iHeight, _video->iFrameRate, _video->iBitRate)) {
            _pH264Enc.reset();
            WarnL << "H264Encoder init failed!";
        }
    }
    if (_pH264Enc) {
        H264Encoder::H264Frame *out_frames;
        int frames = _pH264Enc->inputData(yuv, linesize, cts, &out_frames);
        bool ret = false;
        for (int i = 0; i < frames; i++) {
            ret = inputH264((char *) out_frames[i].pucData, out_frames[i].iLength, cts) ? true : ret;
        }
        return ret;
    }
    return false;
#else
    WarnL << "h264编码未启用,该方法无效,编译时请打开ENABLE_X264选项";
    return false;
#endif //ENABLE_X264
}

bool DevChannel::inputPCM(char* pcData, int iDataLen, uint64_t uiStamp) {
#ifdef ENABLE_FAAC
    if (!_pAacEnc) {
        _pAacEnc.reset(new AACEncoder());
        if (!_pAacEnc->init(_audio->iSampleRate, _audio->iChannel, _audio->iSampleBit)) {
            _pAacEnc.reset();
            WarnL << "AACEncoder init failed!";
        }
    }
    if (_pAacEnc) {
        unsigned char *pucOut;
        int iRet = _pAacEnc->inputData(pcData, iDataLen, &pucOut);
        if (iRet > 7) {
            return inputAAC((char *) pucOut + 7, iRet - 7, uiStamp, (char *)pucOut);
        }
    }
    return false;
#else
    WarnL << "aac编码未启用,该方法无效,编译时请打开ENABLE_FAAC选项";
    return false;
#endif //ENABLE_FAAC
}

bool DevChannel::inputH264(const char *data, int len, uint64_t dts, uint64_t pts) {
    if (dts == 0) {
        dts = _aTicker[0].elapsedTime();
    }
    if (pts == 0) {
        pts = dts;
    }

    return inputFrame(Factory::getFrameFromPtr(CodecH264,data, len, dts, pts));
}

bool DevChannel::inputH265(const char *data, int len, uint64_t dts, uint64_t pts) {
    if (dts == 0) {
        dts = _aTicker[0].elapsedTime();
    }
    if (pts == 0) {
        pts = dts;
    }

    return inputFrame(Factory::getFrameFromPtr(CodecH265, data, len, dts, pts));
}

#define ADTS_HEADER_LEN 7

bool DevChannel::inputAAC(const char *data_without_adts, int len, uint64_t dts, const char *adts_header){
    if (dts == 0) {
        dts = _aTicker[1].elapsedTime();
    }

    if (!adts_header) {
        //没有adts头
        return inputFrame(std::make_shared<FrameFromPtr>(CodecAAC, (char *) data_without_adts, len, dts, 0, 0));
    }

    if (adts_header + ADTS_HEADER_LEN == data_without_adts) {
        //adts头和帧在一起
        return inputFrame(std::make_shared<FrameFromPtr>(CodecAAC, (char *) data_without_adts - ADTS_HEADER_LEN, len + ADTS_HEADER_LEN, dts, 0, ADTS_HEADER_LEN));
    }

    //adts头和帧不在一起
    char *data_with_adts = new char[len + ADTS_HEADER_LEN];
    memcpy(data_with_adts, adts_header, ADTS_HEADER_LEN);
    memcpy(data_with_adts + ADTS_HEADER_LEN, data_without_adts, len);
    return inputFrame(std::make_shared<FrameAutoDelete>(CodecAAC, data_with_adts, len + ADTS_HEADER_LEN, dts, 0, ADTS_HEADER_LEN));
}

bool DevChannel::inputAudio(const char *data, int len, uint64_t dts){
    if (dts == 0) {
        dts = _aTicker[1].elapsedTime();
    }
    return inputFrame(Factory::getFrameFromPtr(_audio->codecId, (char *) data, len, dts, dts));
}

bool DevChannel::initVideo(const VideoInfo &info) {
    _video = std::make_shared<VideoInfo>(info);
    return addTrack(Factory::getTrackByCodecId(info.codecId));
}

bool DevChannel::initAudio(const AudioInfo &info) {
    _audio = std::make_shared<AudioInfo>(info);
    return addTrack(Factory::getTrackByCodecId(info.codecId, info.iSampleRate, info.iChannel, info.iSampleBit));
}

bool DevChannel::inputFrame(const Frame::Ptr &frame) {
    auto cached_frame = Frame::getCacheAbleFrame(frame);
    weak_ptr<MultiMediaSourceMuxer> weak_self = shared_from_this();
    getOwnerPoller(MediaSource::NullMediaSource())->async([weak_self, cached_frame]() {
        if (auto strong_self = weak_self.lock()) {
            strong_self->MultiMediaSourceMuxer::inputFrame(cached_frame);
        }
    });
    return true;
}

bool DevChannel::addTrack(const Track::Ptr &track) {
    bool ret;
    getOwnerPoller(MediaSource::NullMediaSource())->sync([&]() { ret = MultiMediaSourceMuxer::addTrack(track); });
    return ret;
}

void DevChannel::addTrackCompleted() {
    getOwnerPoller(MediaSource::NullMediaSource())->sync([&]() { MultiMediaSourceMuxer::addTrackCompleted(); });
}

MediaOriginType DevChannel::getOriginType(MediaSource &sender) const {
    return MediaOriginType::device_chn;
}

} /* namespace mediakit */