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371e3e460a
We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
103 lines
3.4 KiB
C
103 lines
3.4 KiB
C
/* GStreamer
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* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
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* (C) 2015 Wim Taymans <wim.taymans@gmail.com>
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*
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* gstaudioquantize.h: quantizes audio to the target format and optionally
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* applies dithering and noise shaping.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <gst/gst.h>
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#include <gst/audio/audio.h>
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#ifndef __GST_AUDIO_QUANTIZE_H__
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#define __GST_AUDIO_QUANTIZE_H__
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/**
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* GstAudioDitherMethod:
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* @GST_AUDIO_DITHER_NONE: No dithering
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* @GST_AUDIO_DITHER_RPDF: Rectangular dithering
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* @GST_AUDIO_DITHER_TPDF: Triangular dithering (default)
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* @GST_AUDIO_DITHER_TPDF_HF: High frequency triangular dithering
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*
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* Set of available dithering methods.
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*/
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typedef enum
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{
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GST_AUDIO_DITHER_NONE = 0,
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GST_AUDIO_DITHER_RPDF,
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GST_AUDIO_DITHER_TPDF,
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GST_AUDIO_DITHER_TPDF_HF
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} GstAudioDitherMethod;
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/**
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* GstAudioNoiseShapingMethod:
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* @GST_AUDIO_NOISE_SHAPING_NONE: No noise shaping (default)
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* @GST_AUDIO_NOISE_SHAPING_ERROR_FEEDBACK: Error feedback
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* @GST_AUDIO_NOISE_SHAPING_SIMPLE: Simple 2-pole noise shaping
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* @GST_AUDIO_NOISE_SHAPING_MEDIUM: Medium 5-pole noise shaping
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* @GST_AUDIO_NOISE_SHAPING_HIGH: High 8-pole noise shaping
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*
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* Set of available noise shaping methods
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*/
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typedef enum
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{
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GST_AUDIO_NOISE_SHAPING_NONE = 0,
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GST_AUDIO_NOISE_SHAPING_ERROR_FEEDBACK,
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GST_AUDIO_NOISE_SHAPING_SIMPLE,
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GST_AUDIO_NOISE_SHAPING_MEDIUM,
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GST_AUDIO_NOISE_SHAPING_HIGH
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} GstAudioNoiseShapingMethod;
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/**
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* GstAudioQuantizeFlags:
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* @GST_AUDIO_QUANTIZE_FLAG_NONE: no flags
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* @GST_AUDIO_QUANTIZE_FLAG_NON_INTERLEAVED: samples are non-interleaved
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*
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* Extra flags that can be passed to gst_audio_quantize_new()
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*/
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typedef enum
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{
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GST_AUDIO_QUANTIZE_FLAG_NONE = 0,
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GST_AUDIO_QUANTIZE_FLAG_NON_INTERLEAVED = (1 << 0)
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} GstAudioQuantizeFlags;
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typedef struct _GstAudioQuantize GstAudioQuantize;
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GST_AUDIO_API
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GstAudioQuantize * gst_audio_quantize_new (GstAudioDitherMethod dither,
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GstAudioNoiseShapingMethod ns,
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GstAudioQuantizeFlags flags,
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GstAudioFormat format,
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guint channels,
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guint quantizer);
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GST_AUDIO_API
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void gst_audio_quantize_free (GstAudioQuantize * quant);
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GST_AUDIO_API
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void gst_audio_quantize_reset (GstAudioQuantize * quant);
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GST_AUDIO_API
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void gst_audio_quantize_samples (GstAudioQuantize * quant,
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const gpointer in[],
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gpointer out[], guint samples);
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#endif /* __GST_AUDIO_QUANTIZE_H__ */
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