66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
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#ifndef NULLSOFT_AGAVE_IFC_AUDIOSTREAM_H
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#define NULLSOFT_AGAVE_IFC_AUDIOSTREAM_H
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#include <bfc/dispatch.h>
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class ifc_audiostream : public Dispatchable
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{
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protected:
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ifc_audiostream() {}
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~ifc_audiostream() {}
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public:
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/* returns number of bytes written to buffer.
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* a return value of 0 means EOF
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*/
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size_t ReadAudio(void *buffer, size_t sizeBytes);
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size_t ReadAudio(void *buffer, size_t, int *killswitch, int *errorCode);
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/* Seeks to a point in the stream in milliseconds
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* returns TRUE if successful, FALSE otherwise
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*/
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int SeekToTimeMs(int millisecs);
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/* returns 1 if this stream is seekable using SeekToTime, 0 otherwise
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*/
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int CanSeek();
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public:
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DISPATCH_CODES
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{
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IFC_AUDIOSTREAM_READAUDIO = 10,
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IFC_AUDIOSTREAM_READAUDIO2 = 11,
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IFC_AUDIOSTREAM_SEEKTOTIMEMS = 20,
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IFC_AUDIOSTREAM_CANSEEK = 30,
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};
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};
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inline size_t ifc_audiostream::ReadAudio(void *buffer, size_t sizeBytes)
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{
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return _call(IFC_AUDIOSTREAM_READAUDIO, (size_t)0, buffer, sizeBytes);
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}
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inline size_t ifc_audiostream::ReadAudio(void *buffer, size_t sizeBytes, int *killswitch, int *errorCode)
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{
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void *params[4] = { &buffer, &sizeBytes, &killswitch, &errorCode};
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size_t retval;
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if (_dispatch(IFC_AUDIOSTREAM_READAUDIO2, &retval, params, 4))
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return retval;
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else
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{
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*errorCode=0;
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return ReadAudio(buffer, sizeBytes);
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}
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}
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inline int ifc_audiostream::SeekToTimeMs(int millisecs)
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{
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return _call(IFC_AUDIOSTREAM_SEEKTOTIMEMS, (int)0, millisecs);
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}
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inline int ifc_audiostream::CanSeek()
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{
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return _call(IFC_AUDIOSTREAM_CANSEEK, (int)0);
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}
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#endif
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