1 /* GStreamer
2 * Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 /**
21 * SECTION:element-openslessrc
22 * @title: openslessrc
23 * @see_also: openslessink
24 *
25 * This element reads data from default audio input using the OpenSL ES API in Android OS.
26 *
27 * ## Example pipelines
28 * |[
29 * gst-launch-1.0 -v openslessrc ! audioconvert ! vorbisenc ! oggmux ! filesink location=recorded.ogg
30 * ]| Record from default audio input and encode to Ogg/Vorbis.
31 *
32 */
33
34 #ifdef HAVE_CONFIG_H
35 # include <config.h>
36 #endif
37
38 #include "openslessrc.h"
39
40 GST_DEBUG_CATEGORY_STATIC (opensles_src_debug);
41 #define GST_CAT_DEFAULT opensles_src_debug
42
43 /* *INDENT-OFF* */
44 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
45 GST_PAD_SRC,
46 GST_PAD_ALWAYS,
47 GST_STATIC_CAPS ("audio/x-raw, "
48 "format = (string) " GST_AUDIO_NE (S16) ", "
49 "rate = (int) 16000, "
50 "channels = (int) 1, "
51 "layout = (string) interleaved")
52 );
53 /* *INDENT-ON* */
54
55 #define _do_init \
56 GST_DEBUG_CATEGORY_INIT (opensles_src_debug, "openslessrc", 0, \
57 "OpenSLES Source");
58 #define parent_class gst_opensles_src_parent_class
59 G_DEFINE_TYPE_WITH_CODE (GstOpenSLESSrc, gst_opensles_src,
60 GST_TYPE_AUDIO_BASE_SRC, _do_init);
61
62 enum
63 {
64 PROP_0,
65 PROP_PRESET,
66 };
67
68 #define DEFAULT_PRESET GST_OPENSLES_RECORDING_PRESET_NONE
69
70
71 static void
gst_opensles_src_set_property(GObject * object,guint prop_id,const GValue * value,GParamSpec * pspec)72 gst_opensles_src_set_property (GObject * object, guint prop_id,
73 const GValue * value, GParamSpec * pspec)
74 {
75 GstOpenSLESSrc *src = GST_OPENSLES_SRC (object);
76
77 switch (prop_id) {
78 case PROP_PRESET:
79 src->preset = g_value_get_enum (value);
80 break;
81 default:
82 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
83 break;
84 }
85 }
86
87 static void
gst_opensles_src_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)88 gst_opensles_src_get_property (GObject * object, guint prop_id,
89 GValue * value, GParamSpec * pspec)
90 {
91 GstOpenSLESSrc *src = GST_OPENSLES_SRC (object);
92
93 switch (prop_id) {
94 case PROP_PRESET:
95 g_value_set_enum (value, src->preset);
96 break;
97 default:
98 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
99 break;
100 }
101 }
102
103 static GstAudioRingBuffer *
gst_opensles_src_create_ringbuffer(GstAudioBaseSrc * base)104 gst_opensles_src_create_ringbuffer (GstAudioBaseSrc * base)
105 {
106 GstAudioRingBuffer *rb;
107
108 rb = gst_opensles_ringbuffer_new (RB_MODE_SRC);
109 GST_OPENSLES_RING_BUFFER (rb)->preset = GST_OPENSLES_SRC (base)->preset;
110
111 return rb;
112 }
113
114 static void
gst_opensles_src_class_init(GstOpenSLESSrcClass * klass)115 gst_opensles_src_class_init (GstOpenSLESSrcClass * klass)
116 {
117 GObjectClass *gobject_class;
118 GstElementClass *gstelement_class;
119 GstAudioBaseSrcClass *gstaudiobasesrc_class;
120
121 gobject_class = (GObjectClass *) klass;
122 gstelement_class = (GstElementClass *) klass;
123 gstaudiobasesrc_class = (GstAudioBaseSrcClass *) klass;
124
125 gobject_class->set_property = gst_opensles_src_set_property;
126 gobject_class->get_property = gst_opensles_src_get_property;
127
128 g_object_class_install_property (gobject_class, PROP_PRESET,
129 g_param_spec_enum ("preset", "Preset", "Recording preset to use",
130 GST_TYPE_OPENSLES_RECORDING_PRESET, DEFAULT_PRESET,
131 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
132
133 gst_element_class_add_static_pad_template (gstelement_class, &src_factory);
134
135 gst_element_class_set_static_metadata (gstelement_class, "OpenSL ES Src",
136 "Source/Audio",
137 "Input sound using the OpenSL ES APIs",
138 "Josep Torra <support@fluendo.com>");
139
140 gstaudiobasesrc_class->create_ringbuffer =
141 GST_DEBUG_FUNCPTR (gst_opensles_src_create_ringbuffer);
142 }
143
144 static void
gst_opensles_src_init(GstOpenSLESSrc * src)145 gst_opensles_src_init (GstOpenSLESSrc * src)
146 {
147 /* Override some default values to fit on the AudioFlinger behaviour of
148 * processing 20ms buffers as minimum buffer size. */
149 GST_AUDIO_BASE_SRC (src)->buffer_time = 200000;
150 GST_AUDIO_BASE_SRC (src)->latency_time = 20000;
151
152 src->preset = DEFAULT_PRESET;
153 }
154