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authorjhurst <jhurst@cinecert.com>2005-12-20 01:55:40 +0000
committerjhurst <>2005-12-20 01:55:40 +0000
commit8095eaa320551b6795d0368c0ad0c227a3167caa (patch)
treee522d5137671fffbc8fcc084831b5d8806ef44f2 /src/Wav.h
wheee!
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+/*
+Copyright (c) 2005, John Hurst
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/*! \file Wav.h
+ \version $Id$
+ \brief Wave file common elements
+*/
+
+#ifndef _WAV_H_
+#define _WAV_H_
+
+#include <FileIO.h>
+
+namespace ASDCP
+{
+namespace Wav
+{
+ const ui32_t MaxWavHeader = 1024*32; // must find "data" within this space or no happy
+
+ //
+ class fourcc
+ {
+ private:
+ byte_t data[4];
+
+ public:
+ inline fourcc() { memset( data, 0, 4 ); }
+ inline fourcc( const char* v ) { memcpy( this->data, v, 4 ); }
+ inline fourcc( const byte_t* v ) { memcpy( this->data, v, 4 ); }
+ inline fourcc& operator=(const fourcc & s) { memcpy( this->data, s.data, 4); return *this; }
+ inline bool operator==(const fourcc &rhs) { return memcmp(data, rhs.data, 4) == 0 ? true : false; }
+ inline bool operator!=(const fourcc &rhs) { return memcmp(data, rhs.data, 4) != 0 ? true : false; }
+ };
+
+ const fourcc FCC_RIFF("RIFF");
+ const fourcc FCC_WAVE("WAVE");
+ const fourcc FCC_fmt_("fmt ");
+ const fourcc FCC_data("data");
+
+ //
+ class SimpleWaveHeader
+ {
+ public:
+ ui16_t format;
+ ui16_t nchannels;
+ ui32_t samplespersec;
+ ui32_t avgbps;
+ ui16_t blockalign;
+ ui16_t bitspersample;
+ ui16_t cbsize;
+ ui32_t data_len;
+
+ SimpleWaveHeader() :
+ format(0), nchannels(0), samplespersec(0), avgbps(0),
+ blockalign(0), bitspersample(0), cbsize(0), data_len(0) {}
+
+ SimpleWaveHeader(ASDCP::PCM::AudioDescriptor& ADesc);
+
+ Result_t ReadFromBuffer(const byte_t* buf, ui32_t buf_len, ui32_t* data_start);
+ Result_t ReadFromFile(const ASDCP::FileReader& InFile, ui32_t* data_start);
+ Result_t WriteToFile(ASDCP::FileWriter& OutFile) const;
+ void FillADesc(ASDCP::PCM::AudioDescriptor& ADesc, Rational PictureRate) const;
+ };
+
+} // namespace Wav
+} // namespace ASDCP
+
+#endif // _WAV_H_
+
+//
+// end Wav.h
+//