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/*
* audio_out_float.c
* Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
*
* This file is part of a52dec, a free ATSC A-52 stream decoder.
* See http://liba52.sourceforge.net/ for updates.
*
* a52dec is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* a52dec 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
#include "config.h"
#include <stdio.h>
#include <inttypes.h>
#include "dca.h"
#include "audio_out.h"
#include "audio_out_internal.h"
static int float_setup (ao_instance_t * instance, int sample_rate, int * flags,
level_t * level, sample_t * bias)
{
(void)instance;
(void)sample_rate;
*flags = DCA_STEREO;
*level = CONVERT_LEVEL;
*bias = 0;
return 0;
}
static int float_play (ao_instance_t * instance, int flags,
sample_t * _samples)
{
#if defined(LIBDCA_FIXED)
float samples[256 * 2];
int i;
for (i = 0; i < 256 * 2; i++)
samples[i] = _samples[i] * (1.0 / (1 << 30));
#elif defined(LIBDCA_DOUBLE)
float samples[256 * 2];
int i;
for (i = 0; i < 256 * 2; i++)
samples[i] = _samples[i];
#else
float * samples = _samples;
#endif
fwrite (samples, sizeof (float), 256 * 2, stdout);
(void)instance;
(void)flags;
return 0;
}
static void float_close (ao_instance_t * instance)
{
(void)instance;
}
static ao_instance_t instance = {float_setup, float_play, float_close};
ao_instance_t * ao_float_open (void)
{
return &instance;
}
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