diff options
Diffstat (limited to 'src/libmad/synth.h')
| -rw-r--r-- | src/libmad/synth.h | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/src/libmad/synth.h b/src/libmad/synth.h index 87471c423..bf27b882f 100644 --- a/src/libmad/synth.h +++ b/src/libmad/synth.h @@ -1,5 +1,5 @@ /* - * mad - MPEG audio decoder + * libmad - MPEG audio decoder library * Copyright (C) 2000-2001 Robert Leslie * * This program is free software; you can redistribute it and/or modify @@ -16,7 +16,7 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * - * $Id: synth.h,v 1.1 2001/08/12 02:57:55 guenter Exp $ + * $Id: synth.h,v 1.2 2002/04/30 18:46:58 miguelfreitas Exp $ */ # ifndef LIBMAD_SYNTH_H @@ -25,18 +25,37 @@ # include "fixed.h" # include "frame.h" +struct mad_pcm { + unsigned int samplerate; /* sampling frequency (Hz) */ + unsigned short channels; /* number of channels */ + unsigned short length; /* number of samples per channel */ + mad_fixed_t samples[2][1152]; /* PCM output samples [ch][sample] */ +}; + struct mad_synth { mad_fixed_t filter[2][2][2][16][8]; /* polyphase filterbank outputs */ /* [ch][eo][peo][s][v] */ unsigned int phase; /* current processing phase */ - struct mad_pcm { - unsigned int samplerate; /* sampling frequency (Hz) */ - unsigned short channels; /* number of channels */ - unsigned short length; /* number of samples per channel */ - mad_fixed_t samples[2][1152]; /* PCM output samples */ - } pcm; + struct mad_pcm pcm; /* PCM output */ +}; + +/* single channel PCM selector */ +enum { + MAD_PCM_CHANNEL_SINGLE = 0 +}; + +/* dual channel PCM selector */ +enum { + MAD_PCM_CHANNEL_DUAL_1 = 0, + MAD_PCM_CHANNEL_DUAL_2 = 1 +}; + +/* stereo PCM selector */ +enum { + MAD_PCM_CHANNEL_STEREO_LEFT = 0, + MAD_PCM_CHANNEL_STEREO_RIGHT = 1 }; void mad_synth_init(struct mad_synth *); |