mirror of
https://gitee.com/xia-chu/ZLMediaKit.git
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98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
/*
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* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
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*
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* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
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*
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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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*/
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#include "RtmpDemuxer.h"
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#include "Extension/Factory.h"
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namespace mediakit {
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void RtmpDemuxer::loadMetaData(const AMFValue &val){
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try {
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makeVideoTrack(val["videocodecid"]);
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makeAudioTrack(val["audiocodecid"]);
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val.object_for_each([&](const string &key, const AMFValue &val) {
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if (key == "duration") {
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_fDuration = val.as_number();
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return;
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}
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});
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}catch (std::exception &ex){
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WarnL << ex.what();
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}
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}
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bool RtmpDemuxer::inputRtmp(const RtmpPacket::Ptr &pkt) {
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switch (pkt->typeId) {
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case MSG_VIDEO: {
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if(!_tryedGetVideoTrack){
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_tryedGetVideoTrack = true;
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auto codec = AMFValue(pkt->getMediaType());
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makeVideoTrack(codec);
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}
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if(_videoRtmpDecoder){
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return _videoRtmpDecoder->inputRtmp(pkt, true);
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}
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return false;
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}
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case MSG_AUDIO: {
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if(!_tryedGetAudioTrack) {
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_tryedGetAudioTrack = true;
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auto codec = AMFValue(pkt->getMediaType());
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makeAudioTrack(codec);
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}
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if(_audioRtmpDecoder){
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_audioRtmpDecoder->inputRtmp(pkt, false);
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return false;
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}
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return false;
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}
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default:
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return false;
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}
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}
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void RtmpDemuxer::makeVideoTrack(const AMFValue &videoCodec) {
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//生成Track对象
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_videoTrack = dynamic_pointer_cast<VideoTrack>(Factory::getTrackByAmf(videoCodec));
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if (_videoTrack) {
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//生成rtmpCodec对象以便解码rtmp
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_videoRtmpDecoder = Factory::getRtmpCodecByTrack(_videoTrack);
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if (_videoRtmpDecoder) {
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//设置rtmp解码器代理，生成的frame写入该Track
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_videoRtmpDecoder->addDelegate(_videoTrack);
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onAddTrack(_videoTrack);
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} else {
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//找不到相应的rtmp解码器，该track无效
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_videoTrack.reset();
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}
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}
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}
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void RtmpDemuxer::makeAudioTrack(const AMFValue &audioCodec) {
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//生成Track对象
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_audioTrack = dynamic_pointer_cast<AudioTrack>(Factory::getTrackByAmf(audioCodec));
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if (_audioTrack) {
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//生成rtmpCodec对象以便解码rtmp
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_audioRtmpDecoder = Factory::getRtmpCodecByTrack(_audioTrack);
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if (_audioRtmpDecoder) {
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//设置rtmp解码器代理，生成的frame写入该Track
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_audioRtmpDecoder->addDelegate(_audioTrack);
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onAddTrack(_audioTrack);
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} else {
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//找不到相应的rtmp解码器，该track无效
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_audioTrack.reset();
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}
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}
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}
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} /* namespace mediakit */
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