1 | //waveform.c: |
---|
2 | |
---|
3 | /* |
---|
4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009-2012 |
---|
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'. |
---|
29 | struct waveform_stream g_waveform_mixer, g_waveform_recbridge; |
---|
30 | |
---|
31 | static 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 | |
---|
63 | int 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 | |
---|
108 | int waveform_free (void) { |
---|
109 | return 0; |
---|
110 | } |
---|
111 | |
---|
112 | int 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 | |
---|
145 | int 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 |
---|