gstreamer/gst/audioconvert/gstchannelmix.h

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/* GStreamer
* Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstchannelmix.h: setup of channel conversion matrices
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_CHANNEL_MIX_H__
#define __GST_CHANNEL_MIX_H__
#include <gst/gst.h>
#include "audioconvert.h"
GST_DEBUG_CATEGORY_EXTERN (audio_convert_debug);
#define GST_CAT_DEFAULT (audio_convert_debug)
/*
* Delete channel mixer matrix.
*/
void gst_channel_mix_unset_matrix (AudioConvertCtx * this);
/*
* Setup channel mixer matrix.
*/
void gst_channel_mix_setup_matrix (AudioConvertCtx * this);
/*
* Checks for passthrough (= identity matrix).
*/
gboolean gst_channel_mix_passthrough (AudioConvertCtx * this);
/*
* Do actual mixing.
*/
void gst_channel_mix_mix_int (AudioConvertCtx * this,
gint32 * in_data,
gint32 * out_data,
gint samples);
void gst_channel_mix_mix_float (AudioConvertCtx * this,
gdouble * in_data,
gdouble * out_data,
gint samples);
#endif /* __GST_CHANNEL_MIX_H__ */