From b5716df4cb2837bbbc42195cf1aefcf03e21d6a6 Mon Sep 17 00:00:00 2001
From: Sean Bartell <wingedtachikoma@gmail.com>
Date: Fri, 24 Jun 2011 01:25:21 -0400
Subject: Build librbcodec with DSP and metadata.

All associated files are moved to /lib/rbcodec.

Change-Id: I572ddd2b8a996aae1e98c081d06b1ed356dce222
---
 lib/rbcodec/dsp/dsp.h | 125 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 lib/rbcodec/dsp/dsp.h

(limited to 'lib/rbcodec/dsp/dsp.h')

diff --git a/lib/rbcodec/dsp/dsp.h b/lib/rbcodec/dsp/dsp.h
new file mode 100644
index 0000000000..2a00f649f8
--- /dev/null
+++ b/lib/rbcodec/dsp/dsp.h
@@ -0,0 +1,125 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2005 Miika Pekkarinen
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _DSP_H
+#define _DSP_H
+
+#include <stdlib.h>
+#include <stdbool.h>
+
+#define NATIVE_FREQUENCY       44100
+
+enum
+{
+    STEREO_INTERLEAVED = 0,
+    STEREO_NONINTERLEAVED,
+    STEREO_MONO,
+    STEREO_NUM_MODES,
+};
+
+enum
+{
+    CODEC_IDX_AUDIO = 0,
+    CODEC_IDX_VOICE,
+};
+
+enum
+{
+    DSP_MYDSP = 1,
+    DSP_SET_FREQUENCY,
+    DSP_SWITCH_FREQUENCY,
+    DSP_SET_SAMPLE_DEPTH,
+    DSP_SET_STEREO_MODE,
+    DSP_RESET,
+    DSP_FLUSH,
+    DSP_SET_TRACK_GAIN,
+    DSP_SET_ALBUM_GAIN,
+    DSP_SET_TRACK_PEAK,
+    DSP_SET_ALBUM_PEAK,
+    DSP_CROSSFEED
+};
+
+
+/****************************************************************************
+ * NOTE: Any assembly routines that use these structures must be updated
+ * if current data members are moved or changed.
+ */
+struct resample_data
+{
+    uint32_t delta;                     /* 00h */
+    uint32_t phase;                     /* 04h */
+    int32_t last_sample[2];             /* 08h */
+                                        /* 10h */
+};
+
+/* This is for passing needed data to external dsp routines. If another
+ * dsp parameter needs to be passed, add to the end of the structure
+ * and remove from dsp_config.
+ * If another function type becomes assembly/external and requires dsp
+ * config info, add a pointer paramter of type "struct dsp_data *".
+ * If removing something from other than the end, reserve the spot or
+ * else update every implementation for every target.
+ * Be sure to add the offset of the new member for easy viewing as well. :)
+ * It is the first member of dsp_config and all members can be accessesed
+ * through the main aggregate but this is intended to make a safe haven
+ * for these items whereas the c part can be rearranged at will. dsp_data
+ * could even moved within dsp_config without disurbing the order.
+ */
+struct dsp_data
+{
+    int output_scale;                   /* 00h */
+    int num_channels;                   /* 04h */
+    struct resample_data resample_data; /* 08h */
+    int32_t clip_min;                   /* 18h */
+    int32_t clip_max;                   /* 1ch */
+    int32_t gain;                       /* 20h - Note that this is in S8.23 format. */
+    int frac_bits;                      /* 24h */
+                                        /* 28h */
+};
+
+struct dsp_config;
+
+int dsp_process(struct dsp_config *dsp, char *dest,
+                const char *src[], int count);
+int dsp_input_count(struct dsp_config *dsp, int count);
+int dsp_output_count(struct dsp_config *dsp, int count);
+intptr_t dsp_configure(struct dsp_config *dsp, int setting,
+                       intptr_t value);
+int get_replaygain_mode(bool have_track_gain, bool have_album_gain);
+void dsp_set_replaygain(void);
+void dsp_set_crossfeed(bool enable);
+void dsp_set_crossfeed_direct_gain(int gain);
+void dsp_set_crossfeed_cross_params(long lf_gain, long hf_gain,
+                                    long cutoff);
+void dsp_set_eq(bool enable);
+void dsp_set_eq_precut(int precut);
+void dsp_set_eq_coefs(int band);
+void dsp_dither_enable(bool enable);
+void dsp_timestretch_enable(bool enable);
+bool dsp_timestretch_available(void);
+void sound_set_pitch(int32_t r);
+int32_t sound_get_pitch(void);
+void dsp_set_timestretch(int32_t percent);
+int32_t dsp_get_timestretch(void);
+int dsp_callback(int msg, intptr_t param);
+void dsp_set_compressor(void);
+
+#endif
-- 
cgit v1.2.3