From d0b8204e3939e1e2d841a90ea254bc4b91309ab5 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期日, 19 一月 2020 13:32:13 +0800
Subject: [PATCH] update ffmepg gpu balance

---
 csrc/wrapper.cpp |  258 +++++++++------------------------------------------
 1 files changed, 46 insertions(+), 212 deletions(-)

diff --git a/csrc/wrapper.cpp b/csrc/wrapper.cpp
index 803ebac..3e34b2c 100644
--- a/csrc/wrapper.cpp
+++ b/csrc/wrapper.cpp
@@ -46,6 +46,8 @@
     ,gb_(0)
     ,cpu_(0)
     ,run_dec_(false)
+    ,run_stream_(true)
+    ,run_rec_(false)
     ,thread_(nullptr)
     ,stop_stream_(false)
     ,stream_(nullptr)
@@ -63,6 +65,8 @@
     ,gb_(0)
     ,cpu_(0)
     ,run_dec_(false)
+    ,run_stream_(true)
+    ,run_rec_(false)
     ,thread_(nullptr)
     ,stop_stream_(false)
     ,stream_(nullptr)
@@ -101,16 +105,19 @@
         prop.gpu_acc_ = !cpu_;
 
     	std::unique_ptr<FormatIn> in(new FormatIn(prop.gpuAccl()));
-    	AVDictionary *avdic = prop.optsFormat();
     	int flag = -1;
         if (gb_){
             flag = in->openGb28181(input, NULL);
         }else{
-            flag = in->open(input, &avdic);
+    	    AVDictionary *avdic = prop.optsFormat();
+            if(avdic){
+                flag = in->open(input, &avdic);
+    	    	av_dict_free(&avdic);
+    	    }else{
+                flag = in->open(input, NULL);
+            }
         }
-    	if(avdic){
-    		av_dict_free(&avdic);
-    	}
+    	
         if(flag == 0){
             if(!in->findStreamInfo(NULL)){
                 logIt("can't find video stream\n");
@@ -150,7 +157,7 @@
 
         stream_ = new stream(in, 3 * in->getFPS());
         // stream_->AudioSwitch(audio_);
-
+        
         decoder_ = new decoder(in);
 
         rec_->Load(in);
@@ -166,9 +173,9 @@
             p.pts = p.dts = AV_NOPTS_VALUE;
         }
         int flag = 0;
-        if (stream_) stream_->SetPacket(pkt);
-        if (decoder_ && run_dec_) flag = decoder_->SetFrame(pkt);
-        if (rec_->Loaded()) rec_->SetPacket(pkt);
+        if (run_stream_ && stream_) stream_->SetPacket(pkt);
+        if (run_dec_ && decoder_) flag = decoder_->SetFrame(pkt);
+        if (run_rec_ && rec_->Loaded()) rec_->SetPacket(pkt);
 
         return flag;
     }
@@ -202,7 +209,7 @@
             int64_t v_id = id;
             int64_t a_id = id;
 
-            bool exist = access(input_url_.c_str(), 0) == 0 ? true : false;
+            bool exist = access(input_url_.c_str(), 0) == 0;
 
             while(!stop_stream_.load()){
                 auto data(std::make_shared<CodedData>());
@@ -241,6 +248,7 @@
             }
 
             deinit_worker();
+            if (exist) break;
         }
     }
 
@@ -248,6 +256,10 @@
         rec_->SetRecMinCacheTime(mind);
     }
 
+    void Wrapper::OpenRecorder(){
+        run_rec_ = true;
+    }
+    
     void Wrapper::BuildRecorder(const char* id, const char *output, const int64_t &fid, const int mindur, const int maxdur, const bool audio){
         bool a = audio;
         if (gb_) a = false;
@@ -260,7 +272,6 @@
             [=]{rec_->NewRec(rid.c_str(), dir.c_str(), fid, mindur, maxdur, a);};
         }
     }
-
     int Wrapper::FireRecorder(const char* sid,const int64_t &id){
         if (rec_->Loaded()){
             rec_->FireRecSignal(sid, id);
@@ -273,7 +284,7 @@
         }
     }
     ////////decoder
-    void Wrapper::BuildDecoder(){
+    void Wrapper::OpenDecoder(){
         run_dec_ = true;
     }
 
@@ -283,6 +294,10 @@
         }
     }
     
+    void Wrapper::CloseStream(){
+        run_stream_ = false;
+    }
+
     void Wrapper::GetPacket(unsigned char **pktData, int *size, int *key){
         if (stream_){
             stream_->GetPacket(pktData, size, key);
@@ -298,69 +313,6 @@
 
 // return val: -1 open error; -2, find stream error; -3, converter create
 namespace cffmpeg_wrap{ // start test functions
-    uint8_t* Decode(const char *file, const int gb, int *w, int *h){
-        VideoProp prop;
-        prop.url_ = file;
-        prop.gpu_acc_ = false;
-
-        std::unique_ptr<FormatIn> in(new FormatIn(prop.gpuAccl()));
-        int flag = -1;
-        if (gb){
-            flag = in->openGb28181(file, NULL);
-        }else{
-            flag = in->open(file, NULL);
-        }
-
-        std::unique_ptr<cvbridge> bridge_(nullptr);
-
-        if(flag == 0){
-            if(!in->findStreamInfo(NULL)){
-                logIt("yolo can't find video stream\n");
-                *w = *h = -2;
-                return NULL;
-            }
-            auto flag = in->openCodec(NULL);
-            if(flag){
-                auto dec_ctx = in->getCodecContext();
-
-                AVPixelFormat pix_fmt = AV_PIX_FMT_BGR24;
-                bridge_.reset(new cvbridge(
-                        dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
-                        dec_ctx->width, dec_ctx->height, pix_fmt, SWS_BICUBIC));
-    
-            }else{
-                logIt("FormatIn openCodec Failed!");
-                *w = *h = -3;
-                return NULL;
-            }
-        }else{
-            logIt("open %s error", file);
-            *w = *h = -1;
-            return NULL;
-        }
-        
-        uint8_t *pic = NULL;
-        *w = *h = 0;
-
-        int tryTime = 0;
-        while (tryTime++ < 100){
-            
-            auto data(std::make_shared<CodedData>());
-            if (in->readPacket(&data->getAVPacket()) == 0){
-
-                auto frame(std::make_shared<FrameData>());
-                AVFrame *frm = frame->getAVFrame(); 
-                if(in->decode(frm, &data->getAVPacket()) == 0){
-                    *w = frm->width;
-                    *h = frm->height;
-                    pic = bridge_->convert2Data(frm);
-                    break;
-                }
-            }
-        }
-
-        return pic;
-    }
 /////// for encoder
     typedef struct _PicEncoder{
         FormatOut *enc;
@@ -369,15 +321,13 @@
         int fps;
         int br;
         int gi;
+        int pix_fmt;
         int flag;
-        int fmt;
         cvbridge *bridge;
     } PicEncoder;
 
     void *CreateEncoder(const int w, const int h, const int fps, const int br, 
-                        const int scale_flag, const int gi, const int fmt, const char *file){
-
-        if (fmt < 0) return NULL;
+                        const int pix_fmt, const int scale_flag, const int gi){
 
         PicEncoder *e = (PicEncoder*)malloc(sizeof(PicEncoder));
         e->enc = NULL;
@@ -386,8 +336,8 @@
         e->fps = fps;
         e->br = br;
         e->gi = gi;
+        e->pix_fmt = pix_fmt;
         e->flag = scale_flag;
-        e->fmt = fmt;
         e->bridge = NULL;
 
         VideoProp prop_;
@@ -397,10 +347,7 @@
         prop_.bit_rate_ = br;
         gi < 0 ? prop_.gpu_acc_ = false : prop_.gpu_acc_ = true;
 
-        std::string filename("./88.mp4");
-        if (file) filename = file;
-
-		FormatOut *enc = new FormatOut(prop_, filename.c_str());
+		FormatOut *enc = new FormatOut(prop_, "./88.mp4");
         e->enc = enc;
 
         return e;
@@ -425,11 +372,11 @@
 
         if (e->bridge == NULL){
             e->bridge = new cvbridge(
-                    w, h, e->fmt,
+                    w, h, e->pix_fmt,
                     e->w, e->h, ctx->pix_fmt, e->flag);
         }
 
-        AVFrame *bgr_frame = cvbridge::fillFrame(in, w, h, e->fmt);
+        AVFrame *bgr_frame = cvbridge::fillFrame(in, w, h, e->pix_fmt);
         AVFrame *frame = e->bridge->convert2Frame(bgr_frame);
         av_frame_free(&bgr_frame);
 
@@ -460,138 +407,25 @@
         return flag;
     }
 
-///////////////////////////////////////////////////////////
-    typedef struct _conv
-    {
-        int srcW;
-        int srcH;
-        int srcF;
-        int dstW;
-        int dstH;
-        cvbridge *b;
-    }Conv;
-    
-    void *CreateConvertor(const int srcW, const int srcH, const int srcFormat,
-                          const int dstW, const int dstH, const int dstFormat, const int flag){
-        
-        auto bridge = new cvbridge(
-                srcW, srcH, srcFormat,
-                dstW, dstH, dstFormat, flag);
-        if (!bridge) return NULL;
+    int GetGb28181Pic(const char *rtspUrl, char *retData, int *retDataLen){
+        int ret = 0;
+        std::string fn = rtspUrl;
 
-        Conv *c = (Conv*)malloc(sizeof(Conv));
-        c->b = bridge;
-        c->dstW = dstW;
-        c->dstH = dstH;
-        c->srcW = srcW;
-        c->srcH = srcH;
-        c->srcF = srcFormat;
-
-        return c;
-    }
-
-    uint8_t *Convert(void *h, uint8_t *src){
-        Conv *c = (Conv*)h;
-
-        auto b = c->b;
-
-        AVFrame *tmp_frm = cvbridge::fillFrame(src, c->srcW, c->srcH, c->srcF);
-        if (!tmp_frm) return NULL;
-
-        unsigned char *picData = b->convert2Data(tmp_frm);
-
-        av_frame_free(&tmp_frm);
-        
-        return picData;
-    }
-
-    void DestoryConvertor(void *h){
-        Conv *c = (Conv*)h;
-        delete c->b;
-        free(c);
-    }
-
-// mjpeg av pix fmt yuv420p
-
-    static int save2PIC(uint8_t *data, const int w, const int h, const char *filename){
-        AVPixelFormat src_fmt = AV_PIX_FMT_BGR24;
-        AVPixelFormat dst_fmt = AV_PIX_FMT_YUV420P;
-
-        cvbridge *bridge = new cvbridge(w, h, src_fmt, w, h, dst_fmt, 16);
-
-        AVFrame *bgr_frame = cvbridge::fillFrame(data, w, h, src_fmt);
-        AVFrame *frame_jpeg = bridge->convert2Frame(bgr_frame);
-        av_frame_free(&bgr_frame);
-
-        AVFormatContext *ctx = avformat_alloc_context();
-        ctx->oformat = av_guess_format("mjpeg", NULL, NULL);
-        if( avio_open(&ctx->pb, filename, AVIO_FLAG_READ_WRITE) < 0) {
-            printf("Couldn't open output file."); 
-            avformat_free_context(ctx);
-
-            delete bridge;
-            return -1; 
-        }
-        AVStream* pAVStream = avformat_new_stream(ctx, 0);
-        if( pAVStream == NULL ){
-            delete bridge;
+        auto handle_gb28181 = new GB28181API;
+        if(handle_gb28181->addCamera(fn) == -1){
+            delete(handle_gb28181);
+            logIt("do addCamera Error\n");
             return -1;
         }
-        AVCodecContext* pCodecCtx = pAVStream->codec; 
-        pCodecCtx->codec_id = ctx->oformat->video_codec;
-        pCodecCtx->codec_type = AVMEDIA_TYPE_VIDEO; 
-        pCodecCtx->pix_fmt = dst_fmt; 
-        pCodecCtx->width = w; 
-        pCodecCtx->height = h; 
-        pCodecCtx->time_base.num = 1; 
-        pCodecCtx->time_base.den = 25;
-        AVCodec* pCodec = avcodec_find_encoder(pCodecCtx->codec_id); 
-        if( !pCodec ) { 
-            printf("Codec not found.");             
-            avformat_free_context(ctx);
 
-            delete bridge;
-            return -1; 
-        } 
-        if( avcodec_open2(pCodecCtx, pCodec, NULL) < 0 ){
-            printf("Could not open codec.");
-            avformat_free_context(ctx);
-            avio_close(ctx->pb); 
-            delete bridge;
-            return -1;
+        int retLen = handle_gb28181->capturePic(handle_gb28181, retData, retDataLen);
+        if(retLen == 0){
+            logIt("do capturePic failed:%d");
+            ret = -1;
         }
-        avformat_write_header(ctx, NULL); 
-        int y_size = pCodecCtx->width * pCodecCtx->height; 
-        AVPacket pkt; 
-        av_new_packet(&pkt, y_size * 3); 
-        int got_picture = 0; 
-        int ret = avcodec_encode_video2(pCodecCtx, &pkt, frame_jpeg, &got_picture); 
-        av_frame_free(&frame_jpeg);
-        delete bridge;
-        if( ret < 0 ) { 
-            printf("Encode Error.\n"); 
-            avformat_free_context(ctx);
-            if( pAVStream ) { 
-                avcodec_close(pAVStream->codec); 
-            } 
-            avio_close(ctx->pb); 
 
-            return -1; 
-        }
-        if( got_picture == 1 ) { 
-            pkt.stream_index = pAVStream->index; 
-            ret = av_write_frame(ctx, &pkt); 
-            avio_flush(ctx->pb);
-        } 
-        av_free_packet(&pkt); 
-        //Write Trailer 
-        av_write_trailer(ctx); 
-        if( pAVStream ) { 
-            avcodec_close(pAVStream->codec); 
-        } 
-        avio_close(ctx->pb); 
-        avformat_free_context(ctx);
-        return 0;
+        handle_gb28181->deleteCamera();
+        return ret;
     }
 }
 

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