45 lines
1004 B
C
45 lines
1004 B
C
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#ifndef NULLSOFT_IN_WMVDRM_AUDIOFORMAT_H
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#define NULLSOFT_IN_WMVDRM_AUDIOFORMAT_H
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#include <mmreg.h>
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#include <wmsdk.h>
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class AudioFormat
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{
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public:
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AudioFormat() : waveFormat(0)
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{
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}
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~AudioFormat()
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{
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delete [] waveFormat;
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}
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unsigned long AudioBytesToSamples(unsigned long bytes);
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unsigned long AudioSamplesToBytes(unsigned long samples);
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unsigned long AudioBytesToMilliseconds(unsigned long bytes);
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unsigned long AudioMillisecondsToBytes(DWORD milliseconds);
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unsigned long AudioDurationToBytes(QWORD duration);
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unsigned long AudioSamplesToMilliseconds(unsigned long samples);
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long Channels();
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long ValidBits();
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long BitSize();
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long SampleRate();
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//protected:
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void Open(WM_MEDIA_TYPE *mediaType)
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{
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delete[] waveFormat;
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waveFormat = (WAVEFORMATEXTENSIBLE *) new unsigned char[mediaType->cbFormat];
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memcpy(waveFormat, mediaType->pbFormat, mediaType->cbFormat);
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}
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void Close()
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{
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delete [] waveFormat;
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waveFormat=0;
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}
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private:
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WAVEFORMATEXTENSIBLE *waveFormat;
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};
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#endif
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