ffmpegsource audio loading

1 files changed, 54 insertions, 1 deletions

diff --git a/rotord/src/graph.cpp b/rotord/src/graph.cpp
index 29b46be..81f3275 100644
--- a/rotord/src/graph.cpp
+++ b/rotord/src/graph.cpp
@@ -173,6 +173,7 @@ bool Graph::video_render(const string &output_filename,const float framerate) {
 			                a=new Audio_frame(audio,audioloader.get_number_channels(),samples_in_frame);
 			                sample_start+=samples_in_frame;
 						}
+						else usingaudio=false;
 					   
 		            }
 
@@ -666,7 +667,7 @@ bool Graph::parseXml(string media_path){
 		loaded=true;
 		return true;
 }
-bool Graph::load_audio(const string &filename,vector<Audio_processor*> processors){
+bool Graph::_load_audio(const string &filename,vector<Audio_processor*> processors){
 	Logger& logger = Logger::get("Rotor");
 	logger.information("Analysing "+filename);
 
@@ -714,6 +715,58 @@ bool Graph::load_audio(const string &filename,vector<Audio_processor*> processor
 	logger.information("Finished audio analysis");
 	return true;
 }
+bool Graph::load_audio(const string &filename,vector<Audio_processor*> processors){
+	Logger& logger = Logger::get("Rotor");
+	logger.information("Analysing "+filename);
+
+	libav::audio_decoder loader;
+	loader.open(filename);
+
+	duration=loader.get_duration();
+
+    int rate = loader.get_sample_rate();
+	int samples = loader.get_number_samples();
+	int channels= loader.get_number_channels();
+	int bits = loader.get_bit_depth();
+
+	for (auto p: processors) {
+		if(!p->init(channels,bits,samples,rate) ){
+			logger.error("ERROR: Audio plugin failed to initialse");
+			return false;
+		}
+	}
+
+	bool finished=false;
+	uint16_t *audio=new uint16_t[1024*loader.get_number_channels()];
+	uint64_t sample=0;
+
+	while (!finished&&!cancelled)
+	{
+		if (loader.get_samples(audio,sample,1024)) {
+			//now we can pass the data to the processor(s)
+			for (auto p: processors) {
+				p->process_frame((uint8_t*)audio,1024);
+			}
+			sample+=1024;
+			//mutex.lock();
+			progress=((float)sample)/samples; //atomic on 64 bit?
+			//mutex.unlock();
+
+		}
+		else finished=true;
+	}
+
+	loader.cleanup();
+
+	for (auto p: processors) {
+		p->cleanup();
+		p->print_summary();
+	}
+
+	logger.information("Finished audio analysis");
+
+	return true;
+}
 bool Graph::load_video(const string &nodeID,const string &filename){
 	//this is a good standard example of how to find
 	//a node of a specific type by ID and do something