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77 lines
1.6 KiB
C++
77 lines
1.6 KiB
C++
#include "audiere_source.hpp"
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#include "../../stream/clients/audiere_file.hpp"
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#include <stdexcept>
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using namespace Mangle::Stream;
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static void fail(const std::string &msg)
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{ throw std::runtime_error("Audiere exception: " + msg); }
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using namespace audiere;
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using namespace Mangle::Sound;
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// --- SampleSource ---
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void AudiereSource::getInfo(Mangle::Sound::int32_t *rate,
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Mangle::Sound::int32_t *channels, Mangle::Sound::int32_t *bits)
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{
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SampleFormat fmt;
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int channels_, rate_;
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sample->getFormat(channels_, rate_, fmt);
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*channels = channels_;
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*rate = rate_;
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if(bits)
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{
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if(fmt == SF_U8)
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*bits = 8;
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else if(fmt == SF_S16)
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*bits = 16;
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else assert(0);
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}
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}
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// --- Constructors ---
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AudiereSource::AudiereSource(const std::string &file)
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{
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sample = OpenSampleSource(file.c_str());
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if(!sample)
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fail("Couldn't load file " + file);
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doSetup();
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}
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AudiereSource::AudiereSource(StreamPtr input)
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{
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// Use our Stream::AudiereFile implementation to convert a Mangle
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// 'Stream' to an Audiere 'File'
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sample = OpenSampleSource(new AudiereFile(input));
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if(!sample)
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fail("Couldn't load stream");
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doSetup();
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}
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AudiereSource::AudiereSource(audiere::SampleSourcePtr src)
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: sample(src)
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{ assert(sample); doSetup(); }
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// Common function called from all constructors
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void AudiereSource::doSetup()
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{
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assert(sample);
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SampleFormat fmt;
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int channels, rate;
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sample->getFormat(channels, rate, fmt);
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// Calculate the size of one frame, and pass it to SampleReader.
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setup(GetSampleSize(fmt) * channels);
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isSeekable = sample->isSeekable();
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hasPosition = true;
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hasSize = true;
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}
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