Added AudioGain filter that allows gain to be increased or reduced on all channels or a per-channel basis. Therefore 3 configuration parameters have been added, which are AudioGain, AudioGainChannel1 and AudioGainChannel2. These parameters take values in Db. Setting the AudioGain applies the gain to both channels. While setting AudioGainChannel1 and AudioGainChannel2 applies gain to channel 1 and channel 2 respectively.

git-svn-id: https://oreka.svn.sourceforge.net/svnroot/oreka/trunk@587 09dcff7a-b715-0410-9601-b79a96267cd0

1 files changed, 20 insertions, 0 deletions

diff --git a/orkbasecxx/BatchProcessing.cpp b/orkbasecxx/BatchProcessing.cpp
index 02c73df..e82a248 100644
--- a/orkbasecxx/BatchProcessing.cpp
+++ b/orkbasecxx/BatchProcessing.cpp
@@ -162,6 +162,7 @@ void BatchProcessing::ThreadHandler(void *args)
 				FilterRef decoder1;
 				FilterRef decoder2;
 				FilterRef decoder;
+				FilterRef audiogain;
 
 				std::bitset<RTP_PAYLOAD_TYPE_MAX> seenRtpPayloadTypes;
 				std::vector<FilterRef> decoders1;
@@ -181,6 +182,15 @@ void BatchProcessing::ThreadHandler(void *args)
 				size_t numSamplesS2 = 0;
 				size_t numSamplesOut = 0;
 
+				CStdString filterName("AudioGain");
+
+				audiogain = FilterRegistry::instance()->GetNewFilter(filterName);
+				if(audiogain.get() == NULL)
+				{
+					debug = "Could not instanciate AudioGain filter";
+					throw(debug);
+				}
+
 				while(fileRef->ReadChunkMono(chunkRef))
 				{
 					// ############ HACK
@@ -190,6 +200,7 @@ void BatchProcessing::ThreadHandler(void *args)
 					// ############ HACK
 
 					AudioChunkDetails details = *chunkRef->GetDetails();
+
 					decoder.reset();
 
 					if(details.m_rtpPayloadType < -1 || details.m_rtpPayloadType >= RTP_PAYLOAD_TYPE_MAX)
@@ -280,6 +291,10 @@ void BatchProcessing::ThreadHandler(void *args)
 						filter->AudioChunkIn(tmpChunkRef);
 						filter->AudioChunkOut(tmpChunkRef);
 					}
+
+					audiogain->AudioChunkIn(tmpChunkRef);
+					audiogain->AudioChunkOut(tmpChunkRef);
+
 					outFileRef->WriteChunk(tmpChunkRef);
 					if(tmpChunkRef.get())
 					{
@@ -325,11 +340,16 @@ void BatchProcessing::ThreadHandler(void *args)
 					filter->AudioChunkIn(stopChunk);
 					filter->AudioChunkOut(tmpChunkRef);
 
+					audiogain->AudioChunkIn(tmpChunkRef);
+					audiogain->AudioChunkOut(tmpChunkRef);
+
 					while(tmpChunkRef.get())
 					{
 						outFileRef->WriteChunk(tmpChunkRef);
 						numSamplesOut += tmpChunkRef->GetNumSamples();
 						filter->AudioChunkOut(tmpChunkRef);
+						audiogain->AudioChunkIn(tmpChunkRef);
+						audiogain->AudioChunkOut(tmpChunkRef);
 					}
 				}