From 68a19a73681301c6712e10d55bc64324716dbd24 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期三, 09 十月 2019 15:38:47 +0800
Subject: [PATCH] split scale

---
 csrc/ffmpeg/format/FormatIn.cpp |  210 +++++++++++++++++++++++++---------------------------
 1 files changed, 102 insertions(+), 108 deletions(-)

diff --git a/csrc/ffmpeg/format/FormatIn.cpp b/csrc/ffmpeg/format/FormatIn.cpp
index d61fbc7..9f743f8 100644
--- a/csrc/ffmpeg/format/FormatIn.cpp
+++ b/csrc/ffmpeg/format/FormatIn.cpp
@@ -17,11 +17,8 @@
 #include "../configure/conf.hpp"
 
 #include "../property/VideoProp.hpp"
-#include "../data/CodedData.hpp"
-#include "../data/FrameData.hpp"
 
 #include "../../common/gpu/info.h"
-#include "PsToEs.hpp"
 
 using namespace logif;
 
@@ -30,10 +27,13 @@
 	:ctx_(NULL)
 	,dec_ctx_(NULL)
 	,vs_idx_(-1)
+	,as_idx_(-1)
 	,hw_accl_(hw)
 	,io_ctx_(NULL)
 	,read_io_buff_(NULL)
 	,read_io_buff_size_(32768)
+	,handle_gb28181(NULL)
+	,fps_(25.0)
 	{}
 
 	FormatIn::~FormatIn()
@@ -47,13 +47,20 @@
 			io_ctx_ = NULL;
 		}
 		if(ctx_){
-			avformat_close_input(&ctx_);
-			avformat_free_context(ctx_);
+			if (!ctx_->oformat){
+				avformat_free_context(ctx_);
+			}else{
+				avformat_close_input(&ctx_);
+			}
 			ctx_ = NULL;
 			if(dec_ctx_){
 				avcodec_close(dec_ctx_);
 				dec_ctx_ = NULL;
 			}
+			
+		}
+		if (handle_gb28181){
+			delete handle_gb28181;
 		}
 	}
 
@@ -61,26 +68,25 @@
 	int FormatIn::openWithCustomIO(void *opaque, read_packet fn, AVDictionary **options/*=NULL*/){
 		ctx_ = avformat_alloc_context();
 		if(!ctx_){
-			logIt("open with custom io create format error");
+			logIt("open with custom io create format error\n");
 			return -1;
 		}
 		read_io_buff_ = (uint8_t*)av_malloc(read_io_buff_size_);
 		if(!read_io_buff_){
-			logIt("open with custom io alloc read io buff error");
+			logIt("open with custom io alloc read io buff error\n");
 			return -1;
 		}
 
 		io_ctx_ = avio_alloc_context(read_io_buff_, read_io_buff_size_, 0, opaque, fn, NULL, NULL);//opaque
 		if(!io_ctx_){
-			logIt("open with custom io create custom avio error");
+			logIt("open with custom io create custom avio error\n");
 			return -1;
 		}
 		ctx_->pb = io_ctx_;
 
 		auto err = av_probe_input_buffer(ctx_->pb, &ctx_->iformat, NULL, NULL, 0, read_io_buff_size_);
 		if(err != 0){
-			logIt("open with custom io prob input buffer error:%d", err);
-            logIt("failed:%s", getAVErrorDesc(err).c_str());
+			logIt("open with custom io prob input buffer error:%d err: %s\n", err, getAVErrorDesc(err).c_str());
 			return -1;
 		}
 
@@ -90,19 +96,27 @@
 	int FormatIn::openGb28181(const char *filename, AVDictionary **options){
 
 	    std::string fn = filename;
-		addCamera(fn);
+		//GB28181API gb28181(fn);
+		if (handle_gb28181){
+			delete handle_gb28181;
+		}
+		handle_gb28181 = new GB28181API;
+		if(handle_gb28181->addCamera(fn) == -1){
+			logIt("do addCamera Error\n");
+			return -1;
+		}
 
-        int ret = openWithCustomIO(NULL, readData, options);
+        int ret = openWithCustomIO(handle_gb28181, handle_gb28181->readData, options);
         if(ret < 0){
             logIt("do openWithCustomIO failed:%d",ret);
-        }
+        }else{
+        	ret = avformat_open_input(&ctx_, "", NULL, options);
+		}
 
-        ret = avformat_open_input(&ctx_, "", NULL, options);
-        if(ret < 0){
-            logIt("open %s failed:%s",filename,
-                  getAVErrorDesc(ret).c_str());
-
-        }
+        // if(ret < 0){
+            // logIt("open %s failed:%s",filename,
+            //       getAVErrorDesc(ret).c_str());
+        // }
 
 		return ret;
 	}
@@ -111,11 +125,10 @@
 	int FormatIn::open(const char *filename, AVDictionary **options){
 
 		const int ret = avformat_open_input(&ctx_, filename, NULL, options);
-		if(ret < 0){
-			logIt("open %s failed:%s",filename,
-					getAVErrorDesc(ret).c_str()); 
-
-		}
+		// if(ret < 0){
+		// 	logIt("open %s failed:%s",filename,
+		// 			getAVErrorDesc(ret).c_str()); 
+		// }
 
 		return ret;
 	}
@@ -130,36 +143,45 @@
 			return false;
 		}
 
+		// logIt("there are %d stream", ctx_->nb_streams);
+
 		for (int i = 0; i < ctx_->nb_streams; ++i)
 		{
-			switch(ctx_->streams[i]->codecpar->codec_type){
-				case AVMEDIA_TYPE_VIDEO:
-					vs_idx_ = i;
-					break;
+			auto type = ctx_->streams[i]->codecpar->codec_type;
+			logIt("there are %d stream, stream %d, type %d", ctx_->nb_streams, i, type);
 
-				default:
-					break;
+			if (type == AVMEDIA_TYPE_VIDEO){
+				vs_idx_ = i;
+
+				auto in = ctx_->streams[i];
+				if(in->r_frame_rate.num >=1 && in->r_frame_rate.den >= 1){
+            	    fps_ = av_q2d(in->r_frame_rate);
+            	}else if(in->avg_frame_rate.num >=1 && in->avg_frame_rate.den >= 1){
+            	    fps_ = av_q2d(in->avg_frame_rate);
+            	} 
+				logIt("in stream video fps %f, time_base: %d : %d", fps_, in->time_base.num, in->time_base.den);
+			}
+			if (type == AVMEDIA_TYPE_AUDIO){
+				auto in = ctx_->streams[i];
+				logIt("in stream audio %d time_base: %d : %d", in->codecpar->codec_id, in->time_base.num, in->time_base.den);
+				if (in->codecpar->codec_id == AV_CODEC_ID_AAC)
+					as_idx_ = i;
+				else
+					logIt("record not support audio codec: %d", in->codecpar->codec_id);
 			}
 		}
+
 		return true;
 	}
 
-	bool FormatIn::openCodec(const int type, AVDictionary **options){
-		int stream_index = -1;
-		switch(type){
-			case AVMEDIA_TYPE_VIDEO:
-				stream_index = vs_idx_;
-				break;
-			default:
-				break;
-		}
-		if(stream_index < 0){
-			logIt("open input %s codec need correct stream",ctx_->filename); 
+	const bool FormatIn::IsHEVC()const{
+		return ctx_->streams[vs_idx_]->codecpar->codec_id == AV_CODEC_ID_HEVC;
+	}
 
-			return false;
-		}
+	bool FormatIn::openCodec(AVDictionary **options){
+		if (vs_idx_ == -1) return false;
 
-		AVStream *s = ctx_->streams[stream_index];
+		AVStream *s = ctx_->streams[vs_idx_];
 
 		AVCodecParameters *codecpar = s->codecpar;
 		AVCodec *dec = NULL;
@@ -188,7 +210,6 @@
             		continue;
             	}else{
             		av_dict_set(&avdic, "gpu", std::to_string(idle_gpu).c_str(), 0);
-            		// av_dict_set(&avdic, "gpu", std::to_string(2).c_str(), 0);
             	}
 			}else{
             	dec = avcodec_find_decoder(codecpar->codec_id);
@@ -244,51 +265,54 @@
 		return true;
 	}
 
-	AVStream *FormatIn::getStream(int type){
-		return ctx_->streams[vs_idx_];
+	AVStream *FormatIn::getStream(int type/*=-1*/){
+		if (type == -1){
+			return ctx_->streams[vs_idx_];
+		}
+
+		if (vs_idx_ > -1 && type == ctx_->streams[vs_idx_]->codecpar->codec_type)
+			return ctx_->streams[vs_idx_];
+		if (as_idx_ > -1 && type == ctx_->streams[as_idx_]->codecpar->codec_type)
+			return ctx_->streams[as_idx_];
+
+		return NULL;
 	}
 
 	AVCodecContext *FormatIn::getCodecContext(int type){
 		return dec_ctx_;
 	}
 	
-	bool FormatIn::readPacket(AVPacket &pkt_out, int stream_index){
-
-		bool founded = false;
-		while (!founded){
-			const int ret = av_read_frame(ctx_, &pkt_out);
-			if(ret < 0){
-				logIt("read frame from %s failed:%s",
-						ctx_->filename,getAVErrorDesc(ret).c_str()); 
-	
-				return false;
-			}
-			if(pkt_out.stream_index == stream_index){
-				founded = true;
-			}else{
-				av_free_packet(&pkt_out);
-				av_init_packet(&pkt_out);
-				pkt_out.data = NULL;
-				pkt_out.size = 0;
-			}
+	bool FormatIn::isVideoPkt(AVPacket *pkt){
+		if (pkt->stream_index == vs_idx_){
+			return true;
 		}
-		pkt_out.stream_index = 0;
-		return true;
-
+		return false;
 	}
 
-	bool FormatIn::readPacket(std::shared_ptr<CodedData> &data, int stream_index){
-
-		AVPacket &pkt(data->getAVPacket());
-		return readPacket(pkt, getStream()->index);
+	bool FormatIn::isAudioPkt(AVPacket *pkt){
+		if (pkt->stream_index == as_idx_){
+			return true;
+		}
+		return false;
 	}
 
-	int FormatIn::decode(AVFrame* &frame, AVPacket &pkt){
+	bool FormatIn::notVideoAudio(AVPacket *pkt){
+		return !isVideoPkt(pkt) && !isAudioPkt(pkt);
+	}
+	
+	int FormatIn::readPacket(AVPacket *pkt_out){
+
+		auto flag = av_read_frame(ctx_, pkt_out);
+		
+		return flag;
+	}
+
+	int FormatIn::decode(AVFrame* frame, AVPacket *pkt){
 		
 		AVStream *in = getStream();
 
-		av_packet_rescale_ts(&pkt, in->time_base, in->codec->time_base);
-        int ret = avcodec_send_packet(dec_ctx_, &pkt);
+		av_packet_rescale_ts(pkt, in->time_base, in->codec->time_base);
+        int ret = avcodec_send_packet(dec_ctx_, pkt);
         if(ret < 0){
         	logIt("avcodec_send_packet error : %s", getAVErrorDesc(ret).c_str());
         	return -1;
@@ -301,39 +325,9 @@
 				logIt("decode frame failed : %s", getAVErrorDesc(ret).c_str()); 
                 return -1;
             }else{
-            	return 1;
+            	return 0;
             }
         }
-		return 0;
+		return -2;
 	}
-
-	int FormatIn::decode(std::shared_ptr<FrameData> &frame_data,
-					std::shared_ptr<CodedData> &data){
-
-		AVFrame *frame = frame_data->getAVFrame();
-		AVPacket &pkt(data->getAVPacket());
-
-		return decode(frame, pkt);
-	}
-
-	int FormatIn::readFrame(AVFrame* &frame){
-
-		auto data(std::make_shared<CodedData>());
-		if(!readPacket(data)){
-			return -1;
-		}
-
-		AVPacket &pkt(data->getAVPacket());
-
-		return decode(frame, pkt);
-	}
-
-	int FormatIn::readFrame(std::shared_ptr<FrameData> &frame_data){
-
-		AVFrame *frame(frame_data->getAVFrame());
-
-		return readFrame(frame);
-	}
-
-
 }

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