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diff --git a/include/gst/audio/audio-quantize.h b/include/gst/audio/audio-quantize.h
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+++ b/include/gst/audio/audio-quantize.h
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+/* GStreamer
+ * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
+ *           (C) 2015 Wim Taymans <wim.taymans@gmail.com>
+ *
+ * gstaudioquantize.h: quantizes audio to the target format and optionally
+ *                     applies dithering and noise shaping.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <gst/gst.h>
+
+#include <gst/audio/audio.h>
+
+
+#ifndef __GST_AUDIO_QUANTIZE_H__
+#define __GST_AUDIO_QUANTIZE_H__
+
+/**
+ * GstAudioDitherMethod:
+ * @GST_AUDIO_DITHER_NONE: No dithering
+ * @GST_AUDIO_DITHER_RPDF: Rectangular dithering
+ * @GST_AUDIO_DITHER_TPDF: Triangular dithering (default)
+ * @GST_AUDIO_DITHER_TPDF_HF: High frequency triangular dithering
+ *
+ * Set of available dithering methods.
+ */
+typedef enum
+{
+  GST_AUDIO_DITHER_NONE = 0,
+  GST_AUDIO_DITHER_RPDF,
+  GST_AUDIO_DITHER_TPDF,
+  GST_AUDIO_DITHER_TPDF_HF
+} GstAudioDitherMethod;
+
+/**
+ * GstAudioNoiseShapingMethod:
+ * @GST_AUDIO_NOISE_SHAPING_NONE: No noise shaping (default)
+ * @GST_AUDIO_NOISE_SHAPING_ERROR_FEEDBACK: Error feedback
+ * @GST_AUDIO_NOISE_SHAPING_SIMPLE: Simple 2-pole noise shaping
+ * @GST_AUDIO_NOISE_SHAPING_MEDIUM: Medium 5-pole noise shaping
+ * @GST_AUDIO_NOISE_SHAPING_HIGH: High 8-pole noise shaping
+ *
+ * Set of available noise shaping methods
+ */
+typedef enum
+{
+  GST_AUDIO_NOISE_SHAPING_NONE = 0,
+  GST_AUDIO_NOISE_SHAPING_ERROR_FEEDBACK,
+  GST_AUDIO_NOISE_SHAPING_SIMPLE,
+  GST_AUDIO_NOISE_SHAPING_MEDIUM,
+  GST_AUDIO_NOISE_SHAPING_HIGH
+} GstAudioNoiseShapingMethod;
+
+/**
+ * GstAudioQuantizeFlags:
+ * @GST_AUDIO_QUANTIZE_FLAG_NONE: no flags
+ * @GST_AUDIO_QUANTIZE_FLAG_NON_INTERLEAVED: samples are non-interleaved
+ *
+ * Extra flags that can be passed to gst_audio_quantize_new()
+ */
+typedef enum
+{
+  GST_AUDIO_QUANTIZE_FLAG_NONE            = 0,
+  GST_AUDIO_QUANTIZE_FLAG_NON_INTERLEAVED = (1 << 0)
+} GstAudioQuantizeFlags;
+
+
+typedef struct _GstAudioQuantize GstAudioQuantize;
+
+GST_AUDIO_API
+GstAudioQuantize *  gst_audio_quantize_new      (GstAudioDitherMethod dither,
+                                                 GstAudioNoiseShapingMethod ns,
+                                                 GstAudioQuantizeFlags flags,
+                                                 GstAudioFormat format,
+                                                 guint channels,
+                                                 guint quantizer);
+
+GST_AUDIO_API
+void                gst_audio_quantize_free     (GstAudioQuantize * quant);
+
+GST_AUDIO_API
+void                gst_audio_quantize_reset    (GstAudioQuantize * quant);
+
+GST_AUDIO_API
+void                gst_audio_quantize_samples  (GstAudioQuantize * quant,
+                                                 const gpointer in[],
+                                                 gpointer out[], guint samples);
+
+#endif /* __GST_AUDIO_QUANTIZE_H__ */