2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) <2007-2008> Sebastian Dröge <sebastian.droege@collabora.co.uk>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
22 #ifndef __AUDIO_RESAMPLE_H__
23 #define __AUDIO_RESAMPLE_H__
26 #include <gst/base/gstbasetransform.h>
27 #include <gst/audio/audio.h>
29 #include "speex_resampler_wrapper.h"
33 #define GST_TYPE_AUDIO_RESAMPLE \
34 (gst_audio_resample_get_type())
35 #define GST_AUDIO_RESAMPLE(obj) \
36 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_RESAMPLE,GstAudioResample))
37 #define GST_AUDIO_RESAMPLE_CLASS(klass) \
38 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_RESAMPLE,GstAudioResampleClass))
39 #define GST_IS_AUDIO_RESAMPLE(obj) \
40 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_RESAMPLE))
41 #define GST_IS_AUDIO_RESAMPLE_CLASS(klass) \
42 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_RESAMPLE))
44 typedef struct _GstAudioResample GstAudioResample;
45 typedef struct _GstAudioResampleClass GstAudioResampleClass;
50 * Opaque data structure.
52 struct _GstAudioResample {
53 GstBaseTransform element;
56 gboolean need_discont;
64 guint64 num_gap_samples;
65 guint64 num_nongap_samples;
80 SpeexResamplerSincFilterMode sinc_filter_mode;
81 guint32 sinc_filter_auto_threshold;
89 SpeexResamplerState *state;
90 const SpeexResampleFuncs *funcs;
93 struct _GstAudioResampleClass {
94 GstBaseTransformClass parent_class;
97 GType gst_audio_resample_get_type(void);
101 #endif /* __AUDIO_RESAMPLE_H__ */