From f40bfc9267b13b54e6379dfe7539447662879d24 Mon Sep 17 00:00:00 2001 From: Sean Bartell Date: Sat, 25 Jun 2011 21:32:25 -0400 Subject: Add codecs to librbcodec. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius Tested-by: Nils Wallménius --- lib/rbcodec/codecs/libmad/synth.h | 52 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 lib/rbcodec/codecs/libmad/synth.h (limited to 'lib/rbcodec/codecs/libmad/synth.h') diff --git a/lib/rbcodec/codecs/libmad/synth.h b/lib/rbcodec/codecs/libmad/synth.h new file mode 100644 index 0000000000..93dd3946d4 --- /dev/null +++ b/lib/rbcodec/codecs/libmad/synth.h @@ -0,0 +1,52 @@ +/* + * libmad - MPEG audio decoder library + * Copyright (C) 2000-2004 Underbit Technologies, Inc. + * + * 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] MEM_ALIGN_ATTR; /* PCM output samples [ch][sample] */ +}; + +struct mad_synth { + mad_fixed_t filter[2][2][2][16][8] MEM_ALIGN_ATTR; /* polyphase filterbank outputs */ + /* [ch][eo][peo][s][v] */ + + unsigned int phase; /* current processing phase */ + + struct mad_pcm pcm; /* PCM output */ +}; + +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 v1.2.3