From 43bc6e62e410adfe4238012becca7a0522cf9435 Mon Sep 17 00:00:00 2001 From: Dave Chapman Date: Sun, 12 May 2002 11:23:25 +0000 Subject: libmad version 0.14.2b git-svn-id: svn://svn.rockbox.org/rockbox/trunk@550 a1c6a512-1295-4272-9138-f99709370657 --- uisimulator/common/libmad/synth.h | 69 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 uisimulator/common/libmad/synth.h (limited to 'uisimulator/common/libmad/synth.h') diff --git a/uisimulator/common/libmad/synth.h b/uisimulator/common/libmad/synth.h new file mode 100644 index 0000000000..2c9d5c886c --- /dev/null +++ b/uisimulator/common/libmad/synth.h @@ -0,0 +1,69 @@ +/* + * libmad - MPEG audio decoder library + * Copyright (C) 2000-2001 Robert Leslie + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id$ + */ + +# ifndef LIBMAD_SYNTH_H +# define LIBMAD_SYNTH_H + +# 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 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 *); + +# define mad_synth_finish(synth) /* nothing */ + +void mad_synth_mute(struct mad_synth *); + +void mad_synth_frame(struct mad_synth *, struct mad_frame const *); + +# endif -- cgit