base/applications/sndrec32/audio_resampler_acm.hpp

   1 /* PROJECT:         ReactOS sndrec32
   2  * LICENSE:         GPL - See COPYING in the top level directory
   3  * FILE:            base/applications/sndrec32/audio_resampler_acm.hpp
   4  * PURPOSE:         Windows ACM wrapper
   5  * PROGRAMMERS:     Marco Pagliaricci (irc: rendar)
   6  */
   7
   8 #ifndef _AUDIORESAMPLERACM__H_
   9 #define _AUDIORESAMPLERACM__H_
  10
  11 #include "audio_receiver.hpp"
  12 #include "audio_format.hpp"
  13
  14 _AUDIO_NAMESPACE_START_
  15
  16 /* TODO: inherit from a base resampler? */
  17 class audio_resampler_acm : public audio_receiver
  18 {
  19     private:
  20         void init_(void);
  21
  22     protected:
  23         HACMSTREAM acm_stream;
  24         ACMSTREAMHEADER acm_header;
  25         DWORD src_buflen;
  26         DWORD dst_buflen;
  27         bool stream_opened;
  28
  29         audio_format audfmt_in;
  30         audio_format audfmt_out;
  31
  32         float buf_secs;
  33
  34         WAVEFORMATEX wformat_src;
  35         WAVEFORMATEX wformat_dst;
  36
  37     public:
  38         /* Ctors */
  39         audio_resampler_acm(audio_format fmt_in,
  40                             audio_format fmt_out) : acm_stream(0),
  41                                                     src_buflen(0),
  42                                                     dst_buflen(0),
  43                                                     stream_opened(false),
  44                                                     audfmt_in(fmt_in),
  45                                                     audfmt_out(fmt_out),
  46                                                     buf_secs(_AUDIO_DEFAULT_BUFSECS)
  47         {
  48             init_();
  49         }
  50
  51         /* Dtor */
  52         ~audio_resampler_acm(void)
  53         {
  54         }
  55
  56         /* Public functions */
  57         void open(void);
  58         void close(void);
  59         void audio_receive(unsigned char *, unsigned int);
  60 };
  61
  62 _AUDIO_NAMESPACE_END_
  63
  64 #endif /* _AUDIORESAMPLERACM__H_ */