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PC World Komputer 2001 December
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Wersje pelne i specjalne
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Winamp 2.77 i 3.0beta
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studio
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cnv_tonepcm
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tonepcm.h
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2001-10-08
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/*
Nullsoft WASABI Source File License
Copyright 1999-2001 Nullsoft, Inc.
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
Brennan Underwood
brennan@nullsoft.com
*/
#ifndef _TONEPCM_H
#define _TONEPCM_H
#include "../studio/services/svc_mediaconverter.h"
#include "../studio/services/servicei.h"
#include "../studio/corecb.h"
#include "../studio/wac.h"
class TonePcm : public svc_mediaConverterI {
public:
TonePcm();
virtual ~TonePcm();
// service
static const char *getServiceName() { return "Tone generator"; }
virtual int canConvertFrom(svc_fileReader *reader, const char *name, const char *chunktype) {
if(name && !STRNICMP(name,"tone://",7)) return 1; // only accepts "tone://..." urls
return 0;
}
virtual const char *getConverterTo() { return "PCM"; }
virtual int getInfos(MediaInfo *infos);
virtual int processData(MediaInfo *infos, ChunkList *chunk_list, bool *killswitch);
virtual int getLatency(void) { return 0; }
// callbacks
virtual int corecb_onSeeked(int newpos) { return 0; } // do nothing on seek
private:
char sample_buffer[4096];
double angle;
int gen_freq;
};
#endif