FCL/sf/mw/gstreamer: gst_plugins_base/gst/audioconvert/gstchannelmix.c@4a7fac7dd34a (annotated)

0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	1	/* GStreamer
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	2	* Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	3	* Copyright (C) 2008 Sebastian Dröge <slomo@circular-chaos.org>
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	4	*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	5	* gstchannelmix.c: setup of channel conversion matrices
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	6	*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	7	* This library is free software; you can redistribute it and/or
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	8	* modify it under the terms of the GNU Library General Public
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	9	* License as published by the Free Software Foundation; either
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	10	* version 2 of the License, or (at your option) any later version.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	11	*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	12	* This library is distributed in the hope that it will be useful,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	15	* Library General Public License for more details.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	16	*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	17	* You should have received a copy of the GNU Library General Public
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	18	* License along with this library; if not, write to the
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	19	* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	20	* Boston, MA 02111-1307, USA.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	21	*/
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	22
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	23	#ifdef HAVE_CONFIG_H
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	24	#include "config.h"
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	25	#endif
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	26
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	27	#include <math.h>
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	28	#include <string.h>
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	29	#include <gst/audio/multichannel.h>
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	30
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	31	#include "gstchannelmix.h"
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	32
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	33	/*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	34	* Channel matrix functions.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	35	*/
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	36	#ifdef __SYMBIAN32__
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	37	EXPORT_C
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	38	#endif
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	39
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	40
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	41	void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	42	gst_channel_mix_unset_matrix (AudioConvertCtx * this)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	43	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	44	gint i;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	45
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	46	/* don't access if nothing there */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	47	if (!this->matrix)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	48	return;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	49
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	50	/* free */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	51	for (i = 0; i < this->in.channels; i++)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	52	g_free (this->matrix[i]);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	53	g_free (this->matrix);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	54
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	55	this->matrix = NULL;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	56	g_free (this->tmp);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	57	this->tmp = NULL;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	58	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	59
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	60	/*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	61	* Detect and fill in identical channels. E.g.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	62	* forward the left/right front channels in a
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	63	* 5.1 to 2.0 conversion.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	64	*/
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	65
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	66	static void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	67	gst_channel_mix_fill_identical (AudioConvertCtx * this)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	68	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	69	gint ci, co;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	70
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	71	/* Apart from the compatible channel assignments, we can also have
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	72	* same channel assignments. This is much simpler, we simply copy
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	73	* the value from source to dest! */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	74	for (co = 0; co < this->out.channels; co++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	75	/* find a channel in input with same position */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	76	for (ci = 0; ci < this->in.channels; ci++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	77	if (this->in.pos[ci] == this->out.pos[co]) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	78	this->matrix[ci][co] = 1.0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	79	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	80	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	81	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	82	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	83
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	84	/*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	85	* Detect and fill in compatible channels. E.g.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	86	* forward left/right front to mono (or the other
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	87	* way around) when going from 2.0 to 1.0.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	88	*/
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	89
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	90	static void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	91	gst_channel_mix_fill_compatible (AudioConvertCtx * this)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	92	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	93	/* Conversions from one-channel to compatible two-channel configs */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	94	struct
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	95	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	96	GstAudioChannelPosition pos1[2];
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	97	GstAudioChannelPosition pos2[1];
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	98	} conv[] = {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	99	/* front: mono <-> stereo */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	100	{ {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	101	GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	102	GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}, {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	103	GST_AUDIO_CHANNEL_POSITION_FRONT_MONO}},
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	104	/* front center: 2 <-> 1 */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	105	{ {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	106	GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	107	GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER}, {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	108	GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER}},
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	109	/* rear: 2 <-> 1 */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	110	{ {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	111	GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	112	GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT}, {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	113	GST_AUDIO_CHANNEL_POSITION_REAR_CENTER}}, { {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	114	GST_AUDIO_CHANNEL_POSITION_INVALID}}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	115	};
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	116	gint c;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	117
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	118	/* conversions from compatible (but not the same) channel schemes */
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	119	for (c = 0; conv[c].pos1[0] != GST_AUDIO_CHANNEL_POSITION_INVALID; c++) {
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	120	gint pos1_0 = -1, pos1_1 = -1, pos1_2 = -1;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	121	gint pos2_0 = -1, pos2_1 = -1, pos2_2 = -1;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	122	gint n;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	123
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	124	for (n = 0; n < this->in.channels; n++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	125	if (this->in.pos[n] == conv[c].pos1[0])
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	126	pos1_0 = n;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	127	else if (this->in.pos[n] == conv[c].pos1[1])
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	128	pos1_1 = n;
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	129	else if (this->in.pos[n] == conv[c].pos2[0])
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	130	pos1_2 = n;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	131	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	132	for (n = 0; n < this->out.channels; n++) {
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	133	if (this->out.pos[n] == conv[c].pos1[0])
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	134	pos2_0 = n;
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	135	else if (this->out.pos[n] == conv[c].pos1[1])
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	136	pos2_1 = n;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	137	else if (this->out.pos[n] == conv[c].pos2[0])
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	138	pos2_2 = n;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	139	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	140
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	141	/* The general idea here is to fill in channels from the same position
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	142	* as good as possible. This means mixing left<->center and right<->center.
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	143	*/
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	144
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	145	/* left -> center */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	146	if (pos1_0 != -1 && pos1_2 == -1 && pos2_0 == -1 && pos2_2 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	147	this->matrix[pos1_0][pos2_2] = 1.0;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	148	else if (pos1_0 != -1 && pos1_2 != -1 && pos2_0 == -1 && pos2_2 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	149	this->matrix[pos1_0][pos2_2] = 0.5;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	150	else if (pos1_0 != -1 && pos1_2 == -1 && pos2_0 != -1 && pos2_2 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	151	this->matrix[pos1_0][pos2_2] = 1.0;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	152
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	153	/* right -> center */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	154	if (pos1_1 != -1 && pos1_2 == -1 && pos2_1 == -1 && pos2_2 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	155	this->matrix[pos1_1][pos2_2] = 1.0;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	156	else if (pos1_1 != -1 && pos1_2 != -1 && pos2_1 == -1 && pos2_2 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	157	this->matrix[pos1_1][pos2_2] = 0.5;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	158	else if (pos1_1 != -1 && pos1_2 == -1 && pos2_1 != -1 && pos2_2 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	159	this->matrix[pos1_1][pos2_2] = 1.0;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	160
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	161	/* center -> left */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	162	if (pos1_2 != -1 && pos1_0 == -1 && pos2_2 == -1 && pos2_0 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	163	this->matrix[pos1_2][pos2_0] = 1.0;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	164	else if (pos1_2 != -1 && pos1_0 != -1 && pos2_2 == -1 && pos2_0 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	165	this->matrix[pos1_2][pos2_0] = 0.5;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	166	else if (pos1_2 != -1 && pos1_0 == -1 && pos2_2 != -1 && pos2_0 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	167	this->matrix[pos1_2][pos2_0] = 1.0;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	168
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	169	/* center -> right */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	170	if (pos1_2 != -1 && pos1_1 == -1 && pos2_2 == -1 && pos2_1 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	171	this->matrix[pos1_2][pos2_1] = 1.0;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	172	else if (pos1_2 != -1 && pos1_1 != -1 && pos2_2 == -1 && pos2_1 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	173	this->matrix[pos1_2][pos2_1] = 0.5;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	174	else if (pos1_2 != -1 && pos1_1 == -1 && pos2_2 != -1 && pos2_1 != -1)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	175	this->matrix[pos1_2][pos2_1] = 1.0;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	176	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	177	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	178
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	179	/*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	180	* Detect and fill in channels not handled by the
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	181	* above two, e.g. center to left/right front in
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	182	* 5.1 to 2.0 (or the other way around).
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	183	*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	184	* Unfortunately, limited to static conversions
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	185	* for now.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	186	*/
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	187
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	188	static void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	189	gst_channel_mix_detect_pos (AudioConvertFmt * caps,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	190	gint * f, gboolean * has_f,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	191	gint * c, gboolean * has_c, gint * r, gboolean * has_r,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	192	gint * s, gboolean * has_s, gint * b, gboolean * has_b)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	193	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	194	gint n;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	195
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	196	for (n = 0; n < caps->channels; n++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	197	switch (caps->pos[n]) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	198	case GST_AUDIO_CHANNEL_POSITION_FRONT_MONO:
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	199	f[1] = n;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	200	*has_f = TRUE;
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	201	break;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	202	case GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT:
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	203	f[0] = n;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	204	*has_f = TRUE;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	205	break;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	206	case GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT:
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	207	f[2] = n;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	208	*has_f = TRUE;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	209	break;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	210	case GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER:
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	211	c[1] = n;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	212	*has_c = TRUE;
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	213	break;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	214	case GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER:
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	215	c[0] = n;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	216	*has_c = TRUE;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	217	break;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	218	case GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER:
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	219	c[2] = n;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	220	*has_c = TRUE;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	221	break;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	222	case GST_AUDIO_CHANNEL_POSITION_REAR_CENTER:
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	223	r[1] = n;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	224	*has_r = TRUE;
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	225	break;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	226	case GST_AUDIO_CHANNEL_POSITION_REAR_LEFT:
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	227	r[0] = n;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	228	*has_r = TRUE;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	229	break;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	230	case GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT:
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	231	r[2] = n;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	232	*has_r = TRUE;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	233	break;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	234	case GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT:
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	235	s[0] = n;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	236	*has_s = TRUE;
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	237	break;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	238	case GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT:
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	239	s[2] = n;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	240	*has_s = TRUE;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	241	break;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	242	case GST_AUDIO_CHANNEL_POSITION_LFE:
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	243	*has_b = TRUE;
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	244	b[1] = n;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	245	break;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	246	default:
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	247	break;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	248	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	249	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	250	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	251
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	252	static void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	253	gst_channel_mix_fill_one_other (gfloat ** matrix,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	254	AudioConvertFmt * from_caps, gint * from_idx,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	255	AudioConvertFmt * to_caps, gint * to_idx, gfloat ratio)
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	256	{
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	257
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	258	/* src & dst have center => passthrough */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	259	if (from_idx[1] != -1 && to_idx[1] != -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	260	matrix[from_idx[1]][to_idx[1]] = ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	261	}
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	262
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	263	/* src & dst have left => passthrough */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	264	if (from_idx[0] != -1 && to_idx[0] != -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	265	matrix[from_idx[0]][to_idx[0]] = ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	266	}
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	267
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	268	/* src & dst have right => passthrough */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	269	if (from_idx[2] != -1 && to_idx[2] != -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	270	matrix[from_idx[2]][to_idx[2]] = ratio;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	271	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	272
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	273	/* src has left & dst has center => put into center */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	274	if (from_idx[0] != -1 && to_idx[1] != -1 && from_idx[1] != -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	275	matrix[from_idx[0]][to_idx[1]] = 0.5 * ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	276	} else if (from_idx[0] != -1 && to_idx[1] != -1 && from_idx[1] == -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	277	matrix[from_idx[0]][to_idx[1]] = ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	278	}
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	279
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	280	/* src has right & dst has center => put into center */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	281	if (from_idx[2] != -1 && to_idx[1] != -1 && from_idx[1] != -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	282	matrix[from_idx[2]][to_idx[1]] = 0.5 * ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	283	} else if (from_idx[2] != -1 && to_idx[1] != -1 && from_idx[1] == -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	284	matrix[from_idx[2]][to_idx[1]] = ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	285	}
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	286
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	287	/* src has center & dst has left => passthrough */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	288	if (from_idx[1] != -1 && to_idx[0] != -1 && from_idx[0] != -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	289	matrix[from_idx[1]][to_idx[0]] = 0.5 * ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	290	} else if (from_idx[1] != -1 && to_idx[0] != -1 && from_idx[0] == -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	291	matrix[from_idx[1]][to_idx[0]] = ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	292	}
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	293
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	294	/* src has center & dst has right => passthrough */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	295	if (from_idx[1] != -1 && to_idx[2] != -1 && from_idx[2] != -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	296	matrix[from_idx[1]][to_idx[2]] = 0.5 * ratio;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	297	} else if (from_idx[1] != -1 && to_idx[2] != -1 && from_idx[2] == -1) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	298	matrix[from_idx[1]][to_idx[2]] = ratio;
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	299	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	300	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	301
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	302	#define RATIO_CENTER_FRONT (1.0 / sqrt (2.0))
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	303	#define RATIO_CENTER_SIDE (1.0 / 2.0)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	304	#define RATIO_CENTER_REAR (1.0 / sqrt (8.0))
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	305
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	306	#define RATIO_FRONT_CENTER (1.0 / sqrt (2.0))
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	307	#define RATIO_FRONT_SIDE (1.0 / sqrt (2.0))
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	308	#define RATIO_FRONT_REAR (1.0 / 2.0)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	309
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	310	#define RATIO_SIDE_CENTER (1.0 / 2.0)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	311	#define RATIO_SIDE_FRONT (1.0 / sqrt (2.0))
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	312	#define RATIO_SIDE_REAR (1.0 / sqrt (2.0))
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	313
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	314	#define RATIO_CENTER_BASS (1.0 / sqrt (2.0))
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	315	#define RATIO_FRONT_BASS (1.0)
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	316	#define RATIO_SIDE_BASS (1.0 / sqrt (2.0))
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	317	#define RATIO_REAR_BASS (1.0 / sqrt (2.0))
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	318
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	319	static void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	320	gst_channel_mix_fill_others (AudioConvertCtx * this)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	321	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	322	gboolean in_has_front = FALSE, out_has_front = FALSE,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	323	in_has_center = FALSE, out_has_center = FALSE,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	324	in_has_rear = FALSE, out_has_rear = FALSE,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	325	in_has_side = FALSE, out_has_side = FALSE,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	326	in_has_bass = FALSE, out_has_bass = FALSE;
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	327	/* LEFT, RIGHT, MONO */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	328	gint in_f[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	329	gint out_f[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	330	/* LOC, ROC, CENTER */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	331	gint in_c[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	332	gint out_c[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	333	/* RLEFT, RRIGHT, RCENTER */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	334	gint in_r[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	335	gint out_r[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	336	/* SLEFT, INVALID, SRIGHT */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	337	gint in_s[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	338	gint out_s[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	339	/* INVALID, LFE, INVALID */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	340	gint in_b[3] = { -1, -1, -1 };
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	341	gint out_b[3] = { -1, -1, -1 };
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	342
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	343	/* First see where (if at all) the various channels from/to
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	344	* which we want to convert are located in our matrix/array. */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	345	gst_channel_mix_detect_pos (&this->in,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	346	in_f, &in_has_front,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	347	in_c, &in_has_center, in_r, &in_has_rear,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	348	in_s, &in_has_side, in_b, &in_has_bass);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	349	gst_channel_mix_detect_pos (&this->out,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	350	out_f, &out_has_front,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	351	out_c, &out_has_center, out_r, &out_has_rear,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	352	out_s, &out_has_side, out_b, &out_has_bass);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	353
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	354	/* The general idea here is:
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	355	* - if the source has a channel that the destination doesn't have mix
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	356	* it into the nearest available destination channel
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	357	* - if the destination has a channel that the source doesn't have mix
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	358	* the nearest source channel into the destination channel
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	359	*
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	360	* The ratio for the mixing becomes lower as the distance between the
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	361	* channels gets larger
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	362	*/
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	363
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	364	/* center <-> front/side/rear */
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	365	if (!in_has_center && in_has_front && out_has_center) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	366	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	367	&this->in, in_f, &this->out, out_c, RATIO_CENTER_FRONT);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	368	} else if (!in_has_center && !in_has_front && in_has_side && out_has_center) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	369	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	370	&this->in, in_s, &this->out, out_c, RATIO_CENTER_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	371	} else if (!in_has_center && !in_has_front && !in_has_side && in_has_rear
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	372	&& out_has_center) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	373	gst_channel_mix_fill_one_other (this->matrix, &this->in, in_r, &this->out,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	374	out_c, RATIO_CENTER_REAR);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	375	} else if (in_has_center && !out_has_center && out_has_front) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	376	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	377	&this->in, in_c, &this->out, out_f, RATIO_CENTER_FRONT);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	378	} else if (in_has_center && !out_has_center && !out_has_front && out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	379	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	380	&this->in, in_c, &this->out, out_s, RATIO_CENTER_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	381	} else if (in_has_center && !out_has_center && !out_has_front && !out_has_side
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	382	&& out_has_rear) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	383	gst_channel_mix_fill_one_other (this->matrix, &this->in, in_c, &this->out,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	384	out_r, RATIO_CENTER_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	385	}
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	386
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	387	/* front <-> center/side/rear */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	388	if (!in_has_front && in_has_center && !in_has_side && out_has_front) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	389	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	390	&this->in, in_c, &this->out, out_f, RATIO_CENTER_FRONT);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	391	} else if (!in_has_front && !in_has_center && in_has_side && out_has_front) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	392	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	393	&this->in, in_s, &this->out, out_f, RATIO_FRONT_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	394	} else if (!in_has_front && in_has_center && in_has_side && out_has_front) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	395	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	396	&this->in, in_c, &this->out, out_f, 0.5 * RATIO_CENTER_FRONT);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	397	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	398	&this->in, in_s, &this->out, out_f, 0.5 * RATIO_FRONT_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	399	} else if (!in_has_front && !in_has_center && !in_has_side && in_has_rear
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	400	&& out_has_front) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	401	gst_channel_mix_fill_one_other (this->matrix, &this->in, in_r, &this->out,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	402	out_f, RATIO_FRONT_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	403	} else if (in_has_front && out_has_center && !out_has_side && !out_has_front) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	404	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	405	&this->in, in_f, &this->out, out_c, RATIO_CENTER_FRONT);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	406	} else if (in_has_front && !out_has_center && out_has_side && !out_has_front) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	407	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	408	&this->in, in_f, &this->out, out_s, RATIO_FRONT_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	409	} else if (in_has_front && out_has_center && out_has_side && !out_has_front) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	410	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	411	&this->in, in_f, &this->out, out_c, 0.5 * RATIO_CENTER_FRONT);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	412	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	413	&this->in, in_f, &this->out, out_s, 0.5 * RATIO_FRONT_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	414	} else if (in_has_front && !out_has_center && !out_has_side && !out_has_front
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	415	&& out_has_rear) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	416	gst_channel_mix_fill_one_other (this->matrix, &this->in, in_f, &this->out,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	417	out_r, RATIO_FRONT_REAR);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	418	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	419
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	420	/* side <-> center/front/rear */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	421	if (!in_has_side && in_has_front && !in_has_rear && out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	422	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	423	&this->in, in_f, &this->out, out_s, RATIO_FRONT_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	424	} else if (!in_has_side && !in_has_front && in_has_rear && out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	425	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	426	&this->in, in_r, &this->out, out_s, RATIO_SIDE_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	427	} else if (!in_has_side && in_has_front && in_has_rear && out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	428	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	429	&this->in, in_f, &this->out, out_s, 0.5 * RATIO_FRONT_SIDE);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	430	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	431	&this->in, in_r, &this->out, out_s, 0.5 * RATIO_SIDE_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	432	} else if (!in_has_side && !in_has_front && !in_has_rear && in_has_center
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	433	&& out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	434	gst_channel_mix_fill_one_other (this->matrix, &this->in, in_c, &this->out,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	435	out_s, RATIO_CENTER_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	436	} else if (in_has_side && out_has_front && !out_has_rear && !out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	437	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	438	&this->in, in_s, &this->out, out_f, RATIO_FRONT_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	439	} else if (in_has_side && !out_has_front && out_has_rear && !out_has_side) {
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	440	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	441	&this->in, in_s, &this->out, out_r, RATIO_SIDE_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	442	} else if (in_has_side && out_has_front && out_has_rear && !out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	443	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	444	&this->in, in_s, &this->out, out_f, 0.5 * RATIO_FRONT_SIDE);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	445	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	446	&this->in, in_s, &this->out, out_r, 0.5 * RATIO_SIDE_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	447	} else if (in_has_side && !out_has_front && !out_has_rear && out_has_center
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	448	&& !out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	449	gst_channel_mix_fill_one_other (this->matrix, &this->in, in_s, &this->out,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	450	out_c, RATIO_CENTER_SIDE);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	451	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	452
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	453	/* rear <-> center/front/side */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	454	if (!in_has_rear && in_has_side && out_has_rear) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	455	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	456	&this->in, in_s, &this->out, out_r, RATIO_SIDE_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	457	} else if (!in_has_rear && !in_has_side && in_has_front && out_has_rear) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	458	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	459	&this->in, in_f, &this->out, out_r, RATIO_FRONT_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	460	} else if (!in_has_rear && !in_has_side && !in_has_front && in_has_center
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	461	&& out_has_rear) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	462	gst_channel_mix_fill_one_other (this->matrix, &this->in, in_c, &this->out,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	463	out_r, RATIO_CENTER_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	464	} else if (in_has_rear && !out_has_rear && out_has_side) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	465	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	466	&this->in, in_r, &this->out, out_s, RATIO_SIDE_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	467	} else if (in_has_rear && !out_has_rear && !out_has_side && out_has_front) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	468	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	469	&this->in, in_r, &this->out, out_f, RATIO_FRONT_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	470	} else if (in_has_rear && !out_has_rear && !out_has_side && !out_has_front
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	471	&& out_has_center) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	472	gst_channel_mix_fill_one_other (this->matrix, &this->in, in_r, &this->out,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	473	out_c, RATIO_CENTER_REAR);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	474	}
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	475
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	476	/* bass <-> any */
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	477	if (in_has_bass && !out_has_bass) {
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	478	if (out_has_center) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	479	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	480	&this->in, in_b, &this->out, out_c, RATIO_CENTER_BASS);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	481	}
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	482	if (out_has_front) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	483	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	484	&this->in, in_b, &this->out, out_f, RATIO_FRONT_BASS);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	485	}
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	486	if (out_has_side) {
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	487	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	488	&this->in, in_b, &this->out, out_s, RATIO_SIDE_BASS);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	489	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	490	if (out_has_rear) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	491	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	492	&this->in, in_b, &this->out, out_r, RATIO_REAR_BASS);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	493	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	494	} else if (!in_has_bass && out_has_bass) {
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	495	if (in_has_center) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	496	gst_channel_mix_fill_one_other (this->matrix,
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	497	&this->in, in_c, &this->out, out_b, RATIO_CENTER_BASS);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	498	}
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	499	if (in_has_front) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	500	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	501	&this->in, in_f, &this->out, out_b, RATIO_FRONT_BASS);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	502	}
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	503	if (in_has_side) {
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	504	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	505	&this->in, in_s, &this->out, out_b, RATIO_REAR_BASS);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	506	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	507	if (in_has_rear) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	508	gst_channel_mix_fill_one_other (this->matrix,
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	509	&this->in, in_r, &this->out, out_b, RATIO_REAR_BASS);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	510	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	511	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	512	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	513
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	514	/*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	515	* Normalize output values.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	516	*/
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	517
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	518	static void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	519	gst_channel_mix_fill_normalize (AudioConvertCtx * this)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	520	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	521	gfloat sum, top = 0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	522	gint i, j;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	523
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	524	for (j = 0; j < this->out.channels; j++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	525	/* calculate sum */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	526	sum = 0.0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	527	for (i = 0; i < this->in.channels; i++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	528	sum += fabs (this->matrix[i][j]);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	529	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	530	if (sum > top) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	531	top = sum;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	532	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	533	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	534
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	535	/* normalize to this */
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	536	if (top == 0.0)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	537	return;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	538
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	539	for (j = 0; j < this->out.channels; j++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	540	for (i = 0; i < this->in.channels; i++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	541	this->matrix[i][j] /= top;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	542	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	543	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	544	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	545
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	546	static gboolean
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	547	gst_channel_mix_fill_special (AudioConvertCtx * this)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	548	{
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	549	AudioConvertFmt in = &this->in, out = &this->out;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	550
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	551	/* Special, standard conversions here */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	552
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	553	/* Mono<->Stereo, just a fast-path */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	554	if (in->channels == 2 && out->channels == 1 &&
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	555	((in->pos[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT &&
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	556	in->pos[1] == GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT) \|\|
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	557	(in->pos[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT &&
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	558	in->pos[1] == GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT)) &&
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	559	out->pos[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_MONO) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	560	this->matrix[0][0] = 0.5;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	561	this->matrix[1][0] = 0.5;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	562	return TRUE;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	563	} else if (in->channels == 1 && out->channels == 2 &&
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	564	((out->pos[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT &&
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	565	out->pos[1] == GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT) \|\|
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	566	(out->pos[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT &&
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	567	out->pos[1] == GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT)) &&
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	568	in->pos[0] == GST_AUDIO_CHANNEL_POSITION_FRONT_MONO) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	569	this->matrix[0][0] = 1.0;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	570	this->matrix[0][1] = 1.0;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	571	return TRUE;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	572	}
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	573
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	574	/* TODO: 5.1 <-> Stereo and other standard conversions */
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	575
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	576	return FALSE;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	577	}
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	578
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	579	/*
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	580	* Automagically generate conversion matrix.
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	581	*/
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	582
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	583	static void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	584	gst_channel_mix_fill_matrix (AudioConvertCtx * this)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	585	{
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	586	if (gst_channel_mix_fill_special (this))
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	587	return;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	588
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	589	gst_channel_mix_fill_identical (this);
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	590
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	591	if (!this->in.unpositioned_layout) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	592	gst_channel_mix_fill_compatible (this);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	593	gst_channel_mix_fill_others (this);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	594	gst_channel_mix_fill_normalize (this);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	595	}
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	596	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	597
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	598	/* only call after this->out and this->in are filled in */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	599	#ifdef __SYMBIAN32__
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	600	EXPORT_C
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	601	#endif
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	602
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	603	void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	604	gst_channel_mix_setup_matrix (AudioConvertCtx * this)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	605	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	606	gint i, j;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	607
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	608	/* don't lose memory */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	609	gst_channel_mix_unset_matrix (this);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	610
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	611	/* temp storage */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	612	if (this->in.is_int \|\| this->out.is_int) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	613	this->tmp = (gpointer) g_new (gint32, this->out.channels);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	614	} else {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	615	this->tmp = (gpointer) g_new (gdouble, this->out.channels);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	616	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	617
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	618	/* allocate */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	619	this->matrix = g_new0 (gfloat *, this->in.channels);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	620	for (i = 0; i < this->in.channels; i++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	621	this->matrix[i] = g_new (gfloat, this->out.channels);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	622	for (j = 0; j < this->out.channels; j++)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	623	this->matrix[i][j] = 0.;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	624	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	625
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	626	/* setup the matrix' internal values */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	627	gst_channel_mix_fill_matrix (this);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	628
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	629	#ifndef GST_DISABLE_GST_DEBUG
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	630	/* debug */
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	631	{
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	632	GString *s;
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	633	s = g_string_new ("Matrix for");
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	634	g_string_append_printf (s, " %d -> %d: ",
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	635	this->in.channels, this->out.channels);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	636	g_string_append (s, "{");
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	637	for (i = 0; i < this->in.channels; i++) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	638	if (i != 0)
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	639	g_string_append (s, ",");
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	640	g_string_append (s, " {");
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	641	for (j = 0; j < this->out.channels; j++) {
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	642	if (j != 0)
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	643	g_string_append (s, ",");
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	644	g_string_append_printf (s, " %f", this->matrix[i][j]);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	645	}
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	646	g_string_append (s, " }");
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	647	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	648	g_string_append (s, " }");
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	649	GST_DEBUG (s->str);
4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	650	g_string_free (s, TRUE);
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	651	}
8 4a7fac7dd34a Revision: 201011 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	652	#endif
0 0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	653	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	654	#ifdef __SYMBIAN32__
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	655	EXPORT_C
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	656	#endif
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	657
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	658
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	659	gboolean
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	660	gst_channel_mix_passthrough (AudioConvertCtx * this)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	661	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	662	gint i;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	663
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	664	/* only NxN matrices can be identities */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	665	if (this->in.channels != this->out.channels)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	666	return FALSE;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	667
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	668	/* this assumes a normalized matrix */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	669	for (i = 0; i < this->in.channels; i++)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	670	if (this->matrix[i][i] != 1.)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	671	return FALSE;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	672
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	673	return TRUE;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	674	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	675
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	676	/* IMPORTANT: out_data == in_data is possible, make sure to not overwrite data
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	677	* you might need later on! */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	678	#ifdef __SYMBIAN32__
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	679	EXPORT_C
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	680	#endif
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	681
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	682	void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	683	gst_channel_mix_mix_int (AudioConvertCtx * this,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	684	gint32 * in_data, gint32 * out_data, gint samples)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	685	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	686	gint in, out, n;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	687	gint64 res;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	688	gboolean backwards;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	689	gint inchannels, outchannels;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	690	gint32 tmp = (gint32 ) this->tmp;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	691
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	692	g_return_if_fail (this->matrix != NULL);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	693	g_return_if_fail (this->tmp != NULL);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	694
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	695	inchannels = this->in.channels;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	696	outchannels = this->out.channels;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	697	backwards = outchannels > inchannels;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	698
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	699	/* FIXME: use liboil here? */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	700	for (n = (backwards ? samples - 1 : 0); n < samples && n >= 0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	701	backwards ? n-- : n++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	702	for (out = 0; out < outchannels; out++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	703	/* convert */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	704	res = 0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	705	for (in = 0; in < inchannels; in++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	706	res += in_data[n * inchannels + in] * this->matrix[in][out];
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	707	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	708
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	709	/* clip (shouldn't we use doubles instead as intermediate format?) */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	710	if (res < G_MININT32)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	711	res = G_MININT32;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	712	else if (res > G_MAXINT32)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	713	res = G_MAXINT32;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	714	tmp[out] = res;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	715	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	716	memcpy (&out_data[n * outchannels], this->tmp,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	717	sizeof (gint32) * outchannels);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	718	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	719	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	720	#ifdef __SYMBIAN32__
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	721	EXPORT_C
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	722	#endif
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	723
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	724
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	725	void
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	726	gst_channel_mix_mix_float (AudioConvertCtx * this,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	727	gdouble * in_data, gdouble * out_data, gint samples)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	728	{
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	729	gint in, out, n;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	730	gdouble res;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	731	gboolean backwards;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	732	gint inchannels, outchannels;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	733	gdouble tmp = (gdouble ) this->tmp;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	734
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	735	g_return_if_fail (this->matrix != NULL);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	736	g_return_if_fail (this->tmp != NULL);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	737
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	738	inchannels = this->in.channels;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	739	outchannels = this->out.channels;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	740	backwards = outchannels > inchannels;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	741
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	742	/* FIXME: use liboil here? */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	743	for (n = (backwards ? samples - 1 : 0); n < samples && n >= 0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	744	backwards ? n-- : n++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	745	for (out = 0; out < outchannels; out++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	746	/* convert */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	747	res = 0.0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	748	for (in = 0; in < inchannels; in++) {
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	749	res += in_data[n * inchannels + in] * this->matrix[in][out];
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	750	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	751
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	752	/* clip (shouldn't we use doubles instead as intermediate format?) */
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	753	if (res < -1.0)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	754	res = -1.0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	755	else if (res > 1.0)
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	756	res = 1.0;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	757	tmp[out] = res;
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	758	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	759	memcpy (&out_data[n * outchannels], this->tmp,
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	760	sizeof (gdouble) * outchannels);
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	761	}
0e761a78d257 Revision: 200949 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: diff changeset	762	}

author	Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
	Fri, 16 Apr 2010 15:15:52 +0300
changeset 8	4a7fac7dd34a
parent 0	0e761a78d257
child 30	7e817e7e631c
permissions	-rw-r--r--