1 files changed, 123 insertions, 0 deletions
diff --git a/orkaudio/audiofile/LibSndFileFile.cpp b/orkaudio/audiofile/LibSndFileFile.cpp
new file mode 100644
index 0000000..cc5bf82
--- /dev/null
+++ b/orkaudio/audiofile/LibSndFileFile.cpp
@@ -0,0 +1,123 @@
+/*
+ * Oreka -- A media capture and retrieval platform
+ * 
+ * Copyright (C) 2005, orecx LLC
+ *
+ * http://www.orecx.com
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License.
+ * Please refer to http://www.gnu.org/copyleft/gpl.html
+ *
+ */
+
+#define _WINSOCKAPI_		// prevents the inclusion of winsock.h
+
+#include "Utils.h"
+#include "LibSndFileFile.h"
+
+LibSndFileFile::LibSndFileFile(int fileFormat)
+{
+    m_fileInfo.format = fileFormat;
+	m_fileInfo.frames = 0;
+    m_fileInfo.samplerate = 0;
+    m_fileInfo.channels = 0;
+    m_fileInfo.sections = 0;
+    m_fileInfo.seekable = 0; 
+	m_pFile = NULL;
+	m_numChunksWritten = 0;
+	m_mode = READ;
+}
+
+LibSndFileFile::~LibSndFileFile()
+{
+	Close();
+}
+
+void LibSndFileFile::Open(CStdString& filename, fileOpenModeEnum mode, bool stereo, int sampleRate)
+{
+	if(!m_filename.Equals(filename))
+	{
+		m_filename = filename + ".wav";
+	}
+	m_mode = mode;
+	stereo ? m_fileInfo.channels = 2 : m_fileInfo.channels = 1;
+	m_fileInfo.samplerate = sampleRate;
+
+	if( (mode==WRITE) && !sf_format_check(&m_fileInfo))
+	{
+		throw(CStdString("libsndfile: Selected output format not supported"));
+	}
+
+	RecursiveMkdir(m_filename);
+
+	int sndFileMode;
+	mode == READ ? sndFileMode = SFM_READ : sndFileMode = SFM_WRITE;
+	m_pFile = sf_open((PCSTR)m_filename, sndFileMode, &m_fileInfo);
+
+	if(!m_pFile)
+	{
+		throw(CStdString("sf_open failed, audio file could not be created:"+ m_filename));
+	}
+}
+
+void LibSndFileFile::WriteChunk(AudioChunkRef chunkRef)
+{
+	if (m_pFile)
+	{
+
+		if( chunkRef->m_encoding == AudioChunk::AlawAudio ||  chunkRef->m_encoding == AudioChunk::UlawAudio)
+		{
+			if(sf_write_raw(m_pFile, chunkRef->m_pBuffer, chunkRef->GetNumSamples()) != chunkRef->GetNumSamples())
+			{
+				CStdString numChunksWrittenString = IntToString(m_numChunksWritten);
+				throw(CStdString("sf_write_raw failed, audio file " + m_filename + " could not be written after " + numChunksWrittenString + " chunks written"));
+			}
+		}
+		else if (chunkRef->m_encoding == AudioChunk::PcmAudio)
+		{
+			if(sf_write_short(m_pFile, (short*)chunkRef->m_pBuffer, chunkRef->GetNumSamples()) != chunkRef->GetNumSamples())
+			{
+				CStdString numChunksWrittenString = IntToString(m_numChunksWritten);
+				throw(CStdString("sf_write_short failed, audio file " + m_filename + " could not be written after " + numChunksWrittenString + " chunks written"));
+			}
+		}
+		m_numChunksWritten++;
+	}
+	else
+	{
+		throw(CStdString("Write attempt on unopened file:")+ m_filename);
+	}
+}
+
+int LibSndFileFile::ReadChunkMono(AudioChunkRef& chunk)
+{
+	unsigned int numRead = 0;
+	if (m_pFile)
+	{
+		chunk.reset(new AudioChunk());
+		short temp[8000];
+		numRead = sf_read_short(m_pFile, temp, 8000);
+		chunk->SetBuffer(temp, sizeof(short)*numRead, AudioChunk::PcmAudio);
+	}
+	else
+	{
+		throw(CStdString("Read attempt on unopened file:")+ m_filename);
+	}
+	return numRead;
+}
+
+
+void LibSndFileFile::Close()
+{
+	if (m_pFile)
+	{
+		sf_close(m_pFile);
+		m_pFile = NULL;
+	}
+}
+
+CStdString LibSndFileFile::GetExtension()
+{
+	return ".wav";
+}