#include "wrapper.hpp"
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#include <thread>
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#include <unistd.h>
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extern "C"{
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#include <libavformat/avformat.h>
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#include <libavutil/opt.h>
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#include <libswscale/swscale.h>
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}
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#include "ffmpeg/configure/conf.hpp"
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#include "ffmpeg/format/FormatIn.hpp"
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#include "ffmpeg/property/VideoProp.hpp"
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#include "ffmpeg/data/CodedData.hpp"
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#include "ffmpeg/data/FrameData.hpp"
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#include "ffmpeg/log/log.hpp"
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#include "ffmpeg/bridge/cvbridge.hpp"
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#include "buz/recorder.hpp"
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using namespace logif;
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using namespace ffwrapper;
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namespace cffmpeg_wrap{
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using namespace buz;
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Wrapper::Wrapper()
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:input_url_("")
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,recorder_(NULL)
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,thread_(nullptr)
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,stop_stream_(false)
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,bridge_(NULL)
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{
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makeTheWorld();
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}
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Wrapper::~Wrapper()
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{
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if(thread_){
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stop_stream_.store(true);
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thread_->join();
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}
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if(bridge_){
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delete bridge_; bridge_ = NULL;
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}
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if(recorder_){
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delete recorder_; recorder_ = NULL;
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}
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}
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std::unique_ptr<ffwrapper::FormatIn> Wrapper::init_reader(const char* input){
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VideoProp prop;
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prop.url_ = input;
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prop.rtsp_tcp_ = true;
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std::unique_ptr<FormatIn> in(new FormatIn(prop.gpuAccl()));
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AVDictionary *avdic = prop.optsFormat();
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int flag = in->open(input, &avdic);
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if(avdic){
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av_dict_free(&avdic);
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}
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if(flag == 0){
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if(!in->findStreamInfo(NULL)){
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logIt("yolo can't find video stream\n");
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return nullptr;
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}
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bool flag = true;
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if(map_workers_.find(WORKER_DECODER) != map_workers_.end()){
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flag = in->openCodec(AVMEDIA_TYPE_VIDEO, NULL);
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auto dec_ctx = in->getCodecContext();
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if(bridge_)delete bridge_;
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AVPixelFormat pix_fmt = AV_PIX_FMT_BGR24;
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bridge_ = new cvbridge(
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dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
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dec_ctx->width, dec_ctx->height, pix_fmt, SWS_BICUBIC);
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}
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if (!flag){
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logIt("FormatIn openCodec Failed!");
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return nullptr;
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}
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return in;
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}
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return nullptr;
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}
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int Wrapper::init_recorder(FormatIn *in, std::string dir, const int mind, const int maxd){
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if(!in){
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logIt("Init wrapper first");
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return -1;
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}
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if(recorder_){
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logIt("recorder exist");
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delete recorder_;
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}
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recorder_ = new Recorder(in);
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recorder_->SetCallback([&](int &index, std::string &path){
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cache_rec_info(index, path);
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});
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int trycnt = 0;
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while(trycnt < 100){
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const int ret = recorder_->Run(dir.c_str(), mind, maxd);
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if(ret == 0) break;
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usleep(200000);
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}
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return trycnt == 100;
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}
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void Wrapper::init_worker(ffwrapper::FormatIn *in){
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for(auto &i : map_workers_){
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if(i.second(in) != 0){
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logIt("worker %d init error", i.first);
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}
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}
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}
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void Wrapper::run_stream_thread(){
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while(!stop_stream_.load()){
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auto in = init_reader(input_url_.c_str());
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if (!in) {
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usleep(200000);
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continue;
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}
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init_worker(in.get());
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int64_t id = 0;
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avpacket pkt;
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while(!stop_stream_.load()){
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auto data(std::make_shared<CodedData>());
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if(!in->readPacket(data)){
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logIt("read packet error");
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pkt.id = -1; data = nullptr; id = 0;
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}else{
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pkt.id = id++;
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}
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pkt.data = data;
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run_worker(in.get(), pkt);
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if(!data){
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break;
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}
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//test
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if(recorder_)
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if(id % 250 == 0)
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recorder_->FireRecorder(id);
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}
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}
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}
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int Wrapper::RunStream(const char* input){
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if(thread_){
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logIt("wrapper run stream already run");
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return 0;
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}
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input_url_ = input;
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thread_.reset(new std::thread([&]{
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run_stream_thread();
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}));
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return 0;
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}
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//////////////recorder
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void Wrapper::BuildRecorder(const char *output, const int mindur, const int maxdur){
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std::string dir(output);
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map_workers_[WORKER_RECORDER] = [=](FormatIn *in){
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return init_recorder(in, dir, mindur, maxdur);
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};
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}
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int Wrapper::FireRecorder(const int64_t &id){
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if(recorder_){
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recorder_->FireRecorder(id);
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}
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}
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void Wrapper::cache_rec_info(int &index, std::string &path){
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if(func_rec_){ //active api
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func_rec_(path, index);
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}else{ // passive api
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std::lock_guard<std::mutex> l(mutex_rec_);
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while(list_rec_.size() > 10){
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for(int i = 0; i < 5; i++){
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list_rec_.pop_front();
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}
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}
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struct record_file_info info;
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info.file_frame_index = index;
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info.file_path = path;
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list_rec_.emplace_back(info);
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}
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}
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void Wrapper::GetInfoRecorder(int &index, std::string &path){
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std::lock_guard<std::mutex> l(mutex_rec_);
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if(list_rec_.empty()){
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index = -1;
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path = "";
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return;
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}
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auto info = list_rec_.front();
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index = info.file_frame_index;
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path = info.file_path;
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list_rec_.pop_front();
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}
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////////decoder
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void Wrapper::BuildDecoder(){
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map_workers_[WORKER_DECODER] = [&](FormatIn*){return 0;};
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}
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void Wrapper::cache_pic(std::shared_ptr<ffwrapper::FrameData> &frame){
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pic_bgr24 pic;
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if(bridge_){
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AVFrame *frm = frame->getAVFrame();
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unsigned char *data = (unsigned char*)malloc(frm->width * frm->height * 3);
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bridge_->copyPicture(data, frm);
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pic.data = data;
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pic.w = frm->width;
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pic.h = frm->height;
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}
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if(func_dec_){
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func_dec_(pic.data, pic.w, pic.h);
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}else{
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std::lock_guard<std::mutex> l(mutex_pic_);
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while(list_pic_.size() > 10){
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for(int i = 0; i < 5; i++){
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auto t = list_pic_.front();
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free(t.data);
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list_pic_.pop_front();
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}
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}
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list_pic_.emplace_back(pic);
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}
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}
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void Wrapper::GetPicDecoder(unsigned char **data, int *w, int *h){
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std::lock_guard<std::mutex> l(mutex_pic_);
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if(list_pic_.empty()){
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*data = NULL;
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*w = 0;
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*h = 0;
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return;
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}
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auto p = list_pic_.front();
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*data = p.data; *w = p.w; *h = p.h;
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list_pic_.pop_front();
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}
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void Wrapper::run_worker(ffwrapper::FormatIn *in, avpacket &pkt){
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if(!pkt.data) return;
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if (map_workers_.find(WORKER_DECODER) != map_workers_.end()) {
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auto frame(std::make_shared<FrameData>());
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auto ret = in->decode(frame, pkt.data);
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if(ret == 1){
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//吐出数据
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cache_pic(frame);
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}
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}
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if(recorder_){
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recorder_->CachePacket(pkt);
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}
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}
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///// active api
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void Wrapper::ActiveRecorder(const char *dir, const int mind, const int maxd,
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FUNC_REC func){
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BuildRecorder(dir, mind, maxd);
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func_rec_ = func;
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}
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void Wrapper::ActiveDecoder(FUNC_DEC fn){
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BuildDecoder();
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func_dec_ = fn;
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}
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////// test
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uint8_t *Wrapper::decodeJPEG(const char *file, int *w, int *h){
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VideoProp prop;
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prop.url_ = file;
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prop.gpu_acc_ = false;
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std::unique_ptr<FormatIn> in(new FormatIn(prop.gpuAccl()));
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int flag = in->open(file, NULL);
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std::unique_ptr<cvbridge> bridge_(nullptr);
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if(flag == 0){
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if(!in->findStreamInfo(NULL)){
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logIt("yolo can't find video stream\n");
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return NULL;
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}
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auto flag = in->openCodec(AVMEDIA_TYPE_VIDEO, NULL);
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if(flag){
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auto dec_ctx = in->getCodecContext();
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AVPixelFormat pix_fmt = AV_PIX_FMT_BGR24;
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bridge_.reset(new cvbridge(
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dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
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dec_ctx->width, dec_ctx->height, pix_fmt, SWS_BICUBIC));
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}else{
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logIt("FormatIn openCodec Failed!");
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return NULL;
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}
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}else{
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logIt("open %s error", input_url_.c_str());
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return NULL;
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}
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auto data(std::make_shared<CodedData>());
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if(!in->readPacket(data)){
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logIt("read packet error");
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return NULL;
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}
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auto frame(std::make_shared<FrameData>());
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auto ret = in->decode(frame, data);
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if(ret == 1){
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AVFrame *frm = frame->getAVFrame();
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*w = frm->width;
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*h = frm->height;
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unsigned char *data = (unsigned char*)malloc(frm->width * frm->height * 3);
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bridge_->copyPicture(data, frm);
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return data;
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}
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return NULL;
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}
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}
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