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/*****************************************************************************
* windows_audio_common.h: Windows Audio common code
*****************************************************************************
* Copyright (C) 2001-2013 VideoLAN
* $Id: 80aa5cb1b8053f98c008c42bd10fa929b97ebcf9 $
*
* Authors: Denis Charmet <typx@videolan.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef DMX_WINDOWS_AUDIO_COMMONS_H
#define DMX_WINDOWS_AUDIO_COMMONS_H
#include <vlc_aout.h>
#include <vlc_codecs.h>
static const uint32_t pi_channels_src[] = { WAVE_SPEAKER_FRONT_LEFT,
WAVE_SPEAKER_FRONT_RIGHT, WAVE_SPEAKER_FRONT_CENTER,
WAVE_SPEAKER_LOW_FREQUENCY, WAVE_SPEAKER_BACK_LEFT, WAVE_SPEAKER_BACK_RIGHT,
WAVE_SPEAKER_BACK_CENTER, WAVE_SPEAKER_SIDE_LEFT, WAVE_SPEAKER_SIDE_RIGHT, 0 };
static const uint32_t pi_channels_aout[] = { AOUT_CHAN_LEFT, AOUT_CHAN_RIGHT,
AOUT_CHAN_CENTER, AOUT_CHAN_LFE, AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT,
AOUT_CHAN_REARCENTER, AOUT_CHAN_MIDDLELEFT, AOUT_CHAN_MIDDLERIGHT, 0 };
static inline unsigned getChannelMask( uint32_t * wvfextChannelMask, int i_channels, int * i_match )
{
unsigned i_channel_mask = 0;
*i_match = 0;
for( unsigned i = 0;
i < sizeof(pi_channels_src)/sizeof(*pi_channels_src) &&
*i_match < i_channels; i++ )
{
if( *wvfextChannelMask & pi_channels_src[i] )
{
if( !( i_channel_mask & pi_channels_aout[i] ) )
*i_match += 1;
*wvfextChannelMask &= ~pi_channels_src[i];
i_channel_mask |= pi_channels_aout[i];
}
}
return i_channel_mask;
}
#endif /*DMX_WINDOWS_AUDIO_COMMONS_H*/
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