source: roaraudio/roard/waveform.c @ 5823:f9f70dbaa376

Last change on this file since 5823:f9f70dbaa376 was 5823:f9f70dbaa376, checked in by phi, 11 years ago

updated copyright

File size: 5.0 KB
Line 
1//waveform.c:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009-2013
5 *
6 *  This file is part of roard a part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  RoarAudio is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 51 Franklin Street, Fifth Floor,
22 *  Boston, MA 02110-1301, USA.
23 *
24 */
25
26#include "roard.h"
27
28// declared 'extern'.
29struct waveform_stream g_waveform_mixer, g_waveform_recbridge;
30
31static int waveform_init_recbridge (void) {
32 struct roar_stream        *  s;
33
34 if ( (g_waveform_recbridge.stream = streams_new()) == -1 )
35  return -1;
36
37 client_stream_add(g_self_client, g_waveform_recbridge.stream);
38
39 streams_get(g_waveform_recbridge.stream, &(g_waveform_recbridge.ss));
40
41 s = ROAR_STREAM(g_waveform_recbridge.ss);
42
43 memcpy(&(s->info), g_sa, sizeof(struct roar_audio_info));
44
45 s->pos_rel_id    =  g_waveform_mixer.stream;
46
47 if ( streams_set_dir(g_waveform_recbridge.stream, ROAR_DIR_BRIDGE, 1) == -1 ) {
48  streams_delete(g_waveform_recbridge.stream);
49  g_waveform_recbridge.stream = -1;
50  g_waveform_recbridge.ss     = NULL;
51  return -1;
52 }
53
54 streams_set_name(g_waveform_recbridge.stream, "Record Bridge");
55
56 streams_set_flag(g_waveform_recbridge.stream, ROAR_FLAG_PRIMARY);
57 streams_set_flag(g_waveform_recbridge.stream, ROAR_FLAG_SYNC);
58 streams_set_flag(g_waveform_recbridge.stream, ROAR_FLAG_MUTE);
59
60 return 0;
61}
62
63int waveform_init  (void) {
64 struct roar_stream_server * ss;
65 struct roar_stream        *  s;
66 int                          i;
67 char                      cmap[ROAR_MAX_CHANNELS];
68
69 // setup mixer:
70 if ( (g_waveform_mixer.stream = add_mixer(ROAR_SUBSYS_WAVEFORM, _MIXER_NAME("Waveform"), &ss)) == -1 )
71  return -1;
72
73 g_waveform_mixer.ss = ss;
74
75 s = ROAR_STREAM(ss);
76
77 memcpy(&(s->info), g_sa, sizeof(struct roar_audio_info));
78
79 roardsp_chanlist_init(cmap,   s->info.channels, ROARDSP_CHANLIST_MAP_ROARAUDIO);
80 streams_set_map(g_waveform_mixer.stream, cmap, s->info.channels);
81
82 ss->state = ROAR_STREAMSTATE_OLD;
83
84
85 // setup Record Bridge:
86 if ( waveform_init_recbridge() == -1 ) {
87  ROAR_WARN("waveform_init(void): Can not setup Record Bridge.");
88  streams_delete(g_waveform_mixer.stream);
89  g_waveform_mixer.stream = -1;
90  g_waveform_mixer.ss     = NULL;
91  return -1;
92 }
93
94 streams_set_mixer_stream(g_waveform_recbridge.stream, g_waveform_mixer.stream);
95
96 // attach all waveform streams to the mixer.
97 for (i = 0; i < ROAR_STREAMS_MAX; i++) {
98  if ( g_streams[i] != NULL ) {
99   if ( streams_get_subsys(i) == ROAR_SUBSYS_WAVEFORM ) {
100    streams_set_mixer_stream(i, g_waveform_mixer.stream);
101   }
102  }
103 }
104
105 return 0;
106}
107
108int waveform_free  (void) {
109 return 0;
110}
111
112int waveform_update_inputs (void) {
113 struct roar_buffer * buf;
114 void * bufdata;
115
116 // read recorded data...:
117 if ( streams_recsource_id != -1 ) {
118  if ( streams_get_outputbuffer(streams_recsource_id, &bufdata, g_input_buffer_len) == -1 ) {
119   ROAR_WARN("waveform_update_mixer(void): can not request output buffer for record stream %i.", streams_recsource_id);
120  } else {
121   if ( streams_fill_mixbuffer2(streams_recsource_id, g_sa) == -1 ) {
122    ROAR_WARN("waveform_update_mixer(void): can not fill output buffer for record stream %i.", streams_recsource_id);
123   } else {
124    memcpy(g_input_buffer, bufdata, g_input_buffer_len);
125   }
126  }
127 }
128
129 if ( !(g_waveform_recbridge.ss->flags & (ROAR_FLAG_PAUSE|ROAR_FLAG_MUTE)) ) {
130  if ( roar_buffer_new_no_ma(&buf, g_input_buffer_len, g_input_buffer) == -1 ) {
131   ROAR_ERR("waveform_update_inputs(void): Can not create a new buffer object for Record Bridge. Bad.");
132   return -1;
133  }
134
135  if ( stream_add_buffer(g_waveform_recbridge.stream, &buf) == -1 ) {
136   ROAR_ERR("waveform_update_inputs(void): Can not attach a new buffer object to the Record Bridge. Bad.");
137   roar_buffer_free(buf);
138   return -1;
139  }
140 }
141
142 return 0;
143}
144
145int waveform_update_mixer (void) {
146 if ( streams_get_flag(g_waveform_mixer.stream, ROAR_FLAG_MUTE) == 1 ) {
147  memset(g_output_buffer, 0, (g_sa->bits*ROAR_OUTPUT_BUFFER_SAMPLES*g_sa->channels)/8);
148  return 0;
149 }
150
151 if ( need_vol_change(ROAR_STREAM(g_waveform_mixer.ss)->info.channels, &(g_waveform_mixer.ss->mixer)) ) {
152  roar_amp_pcm(g_output_buffer, g_sa->bits, g_output_buffer,
153               ROAR_OUTPUT_BUFFER_SAMPLES*g_sa->channels, g_sa->channels,
154               &(g_waveform_mixer.ss->mixer));
155 }
156
157 streams_ltm_calc(g_waveform_mixer.stream, &(ROAR_STREAM(g_waveform_mixer.ss)->info), g_output_buffer, (g_sa->bits*ROAR_OUTPUT_BUFFER_SAMPLES*g_sa->channels)/8);
158
159 return 0;
160}
161
162//ll
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