1 | /* GStreamer |
2 | * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> |
3 | * Library <2001> Thomas Vander Stichele <thomas@apestaart.org> |
4 | * <2011> Wim Taymans <wim.taymans@gmail.com> |
5 | * |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Library General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2 of the License, or (at your option) any later version. |
10 | * |
11 | * This library is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Library General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Library General Public |
17 | * License along with this library; if not, write to the |
18 | * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
19 | * Boston, MA 02110-1301, USA. |
20 | */ |
21 | |
22 | #ifndef __GST_AUDIO_AUDIO_H__ |
23 | #define __GST_AUDIO_AUDIO_H__ |
24 | |
25 | #include <gst/gst.h> |
26 | #include <gst/audio/audio-prelude.h> |
27 | #include <gst/audio/audio-enumtypes.h> |
28 | #include <gst/audio/audio-format.h> |
29 | #include <gst/audio/audio-channels.h> |
30 | #include <gst/audio/audio-channel-mixer.h> |
31 | #include <gst/audio/audio-info.h> |
32 | #include <gst/audio/audio-buffer.h> |
33 | #include <gst/audio/audio-quantize.h> |
34 | #include <gst/audio/audio-converter.h> |
35 | #include <gst/audio/audio-resampler.h> |
36 | #include <gst/audio/gstaudiostreamalign.h> |
37 | #include <gst/audio/gstaudioaggregator.h> |
38 | |
39 | G_BEGIN_DECLS |
40 | |
41 | /* conversion macros */ |
42 | /** |
43 | * GST_FRAMES_TO_CLOCK_TIME: |
44 | * @frames: sample frames |
45 | * @rate: sampling rate |
46 | * |
47 | * Calculate clocktime from sample @frames and @rate. |
48 | */ |
49 | #define GST_FRAMES_TO_CLOCK_TIME(frames, rate) \ |
50 | ((GstClockTime) gst_util_uint64_scale_round (frames, GST_SECOND, rate)) |
51 | |
52 | /** |
53 | * GST_CLOCK_TIME_TO_FRAMES: |
54 | * @clocktime: clock time |
55 | * @rate: sampling rate |
56 | * |
57 | * Calculate frames from @clocktime and sample @rate. |
58 | */ |
59 | #define GST_CLOCK_TIME_TO_FRAMES(clocktime, rate) \ |
60 | gst_util_uint64_scale_round (clocktime, rate, GST_SECOND) |
61 | |
62 | /* metadata macros */ |
63 | |
64 | /** |
65 | * GST_META_TAG_AUDIO_STR: |
66 | * |
67 | * This metadata is relevant for audio streams. |
68 | * |
69 | * Since: 1.2 |
70 | */ |
71 | #define GST_META_TAG_AUDIO_STR "audio" |
72 | /** |
73 | * GST_META_TAG_AUDIO_CHANNELS_STR: |
74 | * |
75 | * This metadata stays relevant as long as channels are unchanged. |
76 | * |
77 | * Since: 1.2 |
78 | */ |
79 | #define GST_META_TAG_AUDIO_CHANNELS_STR "channels" |
80 | |
81 | /** |
82 | * GST_META_TAG_AUDIO_RATE_STR: |
83 | * |
84 | * This metadata stays relevant as long as sample rate is unchanged. |
85 | * |
86 | * Since: 1.8 |
87 | */ |
88 | #define GST_META_TAG_AUDIO_RATE_STR "rate" |
89 | |
90 | /* |
91 | * this library defines and implements some helper functions for audio |
92 | * handling |
93 | */ |
94 | |
95 | GST_AUDIO_API |
96 | GstBuffer * gst_audio_buffer_clip (GstBuffer *buffer, |
97 | const GstSegment *segment, |
98 | gint rate, gint bpf); |
99 | |
100 | GST_AUDIO_API |
101 | GstBuffer * gst_audio_buffer_truncate (GstBuffer *buffer, |
102 | gint bpf, gsize trim, gsize samples); |
103 | |
104 | G_END_DECLS |
105 | |
106 | #include <gst/audio/gstaudioringbuffer.h> |
107 | #include <gst/audio/gstaudioclock.h> |
108 | #include <gst/audio/gstaudiofilter.h> |
109 | #include <gst/audio/gstaudiocdsrc.h> |
110 | #include <gst/audio/gstaudiodecoder.h> |
111 | #include <gst/audio/gstaudioencoder.h> |
112 | #include <gst/audio/gstaudiobasesink.h> |
113 | #include <gst/audio/gstaudiobasesrc.h> |
114 | #include <gst/audio/gstaudiometa.h> |
115 | #include <gst/audio/gstaudiosink.h> |
116 | #include <gst/audio/gstaudiosrc.h> |
117 | #include <gst/audio/streamvolume.h> |
118 | #include <gst/audio/gstaudioiec61937.h> |
119 | |
120 | #endif /* __GST_AUDIO_AUDIO_H__ */ |
121 | |