Add input stream codec parameter to plugin (#907)

Author: qwu16

source/agent/analytics/videoGstPipeline/VideoGstAnalyzer.cc

@@ -175,6 +175,7 @@ int VideoGstAnalyzer::createPipeline() {
         {"inputwidth", std::to_string(width)},
         {"inputheight", std::to_string(height)},
         {"inputframerate", std::to_string(framerate)},
+        {"inputcodec", codec},
         {"pipelinename", algo} };
     pipeline_->PipelineConfig(plugin_config_map);
 

source/agent/plugins/samples/cpu_pipeline/mypipeline.cc

@@ -36,6 +36,12 @@ rvaStatus MyPipeline::PipelineConfig(std::unordered_map<std::string, std::string
     else
         inputframerate = std::atoi(framerate->second.c_str());
 
+    std::unordered_map<std::string,std::string>::const_iterator codec = params.find ("inputcodec");
+    if ( codec == params.end() )
+        std::cout << "inputcodec is not found" << std::endl;
+    else
+        inputcodec = codec->second;
+
     std::unordered_map<std::string,std::string>::const_iterator name = params.find ("pipelinename");
     if ( name == params.end() )
         std::cout << "pipeline name is not found" << std::endl;

source/agent/plugins/samples/cpu_pipeline/mypipeline.h

@@ -32,6 +32,7 @@ class MyPipeline : public rvaPipeline {
 private:
     GstElement *pipeline, *source, *receive,*detect,*decodebin,*postproc,*h264parse,*counter, *watermark, *converter, *encoder, *outsink;
     int inputwidth, inputheight, inputframerate;
+    std::string inputcodec;
     std::string pipelinename;
 };