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62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
#ifndef MANGLE_SOUND_SOURCE_H
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#define MANGLE_SOUND_SOURCE_H
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#include <string>
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#include <boost/cstdint.hpp>
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#include <assert.h>
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#include "../stream/stream.hpp"
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namespace Mangle {
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namespace Sound {
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typedef boost::int32_t int32_t;
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/// A stream containing raw sound data and information about the format
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class SampleSource : public Stream::Stream
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{
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protected:
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bool isEof;
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public:
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SampleSource() : isEof(false) {}
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/// Get the sample rate, number of channels, and bits per
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/// sample. NULL parameters are ignored.
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virtual void getInfo(int32_t *rate, int32_t *channels, int32_t *bits) = 0;
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bool eof() const { return isEof; }
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// Disabled functions by default. You can still override them in
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// subclasses.
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void seek(size_t pos) { assert(0); }
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size_t tell() const { assert(0); return 0; }
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size_t size() const { assert(0); return 0; }
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};
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typedef boost::shared_ptr<SampleSource> SampleSourcePtr;
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/// A factory interface for loading SampleSources from file or stream
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class SampleSourceLoader
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{
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public:
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/// If true, the stream version of load() works
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bool canLoadStream;
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/// If true, the file version of load() works
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bool canLoadFile;
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/// Load a sound input source from file (if canLoadFile is true)
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virtual SampleSourcePtr load(const std::string &file) = 0;
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/// Load a sound input source from stream (if canLoadStream is true)
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virtual SampleSourcePtr load(Stream::StreamPtr input) = 0;
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/// Virtual destructor
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virtual ~SampleSourceLoader() {}
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};
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typedef boost::shared_ptr<SampleSourceLoader> SampleSourceLoaderPtr;
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}} // namespaces
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#endif
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