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/*
* TwoLAME: an optimized MPEG Audio Layer Two encoder
*
* Copyright (C) 2001-2004 Michael Cheng
* Copyright (C) 2004-2006 The TwoLAME Project
*
* This library 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 library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include "twolame.h"
#include "bitbuffer.h"
#include "common.h"
#include "mem.h"
#include "util.h"
#include "energy.h"
/*********************************************/
int twolame_set_mode(twolame_options * glopts, TWOLAME_MPEG_mode mode)
{
if (mode < TWOLAME_AUTO_MODE || mode > TWOLAME_MONO) {
fprintf(stderr, "invalid mode %i\n", mode);
return (-1);
}
glopts->mode = mode;
return (0);
}
TWOLAME_MPEG_mode twolame_get_mode(twolame_options * glopts)
{
return (glopts->mode);
}
const char *twolame_get_mode_name(twolame_options * glopts)
{
static const char *mode_name[6] =
{ "Auto", "Stereo", "J-Stereo", "Dual-Channel", "Mono", "Illegal Mode" };
int mode = glopts->mode;
if (mode >= TWOLAME_AUTO_MODE && mode <= TWOLAME_MONO)
return (mode_name[mode + 1]);
else
return (mode_name[5]);
}
int twolame_set_psymodel(twolame_options * glopts, int psymodel)
{
glopts->psymodel = psymodel;
return (0);
}
int twolame_get_psymodel(twolame_options * glopts)
{
return (glopts->psymodel);
}
/* number of channels on the input stream */
int twolame_set_num_channels(twolame_options * glopts, int num_channels)
{
glopts->num_channels_in = num_channels;
return 0;
}
int twolame_get_num_channels(twolame_options * glopts)
{
return (glopts->num_channels_in);
}
int twolame_set_scale(twolame_options * glopts, float scale)
{
if (scale < 0) {
fprintf(stderr, "invalid scaling amount %f\n", scale);
return (-1);
}
glopts->scale = scale;
return 0;
}
float twolame_get_scale(twolame_options * glopts)
{
return (glopts->scale);
}
int twolame_set_scale_left(twolame_options * glopts, float scale)
{
if (scale < 0) {
fprintf(stderr, "invalid scaling amount %f\n", scale);
return (-1);
}
glopts->scale_left = scale;
return 0;
}
float twolame_get_scale_left(twolame_options * glopts)
{
return (glopts->scale_left);
}
int twolame_set_scale_right(twolame_options * glopts, float scale)
{
if (scale < 0) {
fprintf(stderr, "invalid scaling amount %f\n", scale);
return (-1);
}
glopts->scale_right = scale;
return 0;
}
float twolame_get_scale_right(twolame_options * glopts)
{
return (glopts->scale_right);
}
int twolame_set_in_samplerate(twolame_options * glopts, int samplerate)
{
glopts->samplerate_in = samplerate;
return (0);
}
int twolame_get_in_samplerate(twolame_options * glopts)
{
return (glopts->samplerate_in);
}
int twolame_set_out_samplerate(twolame_options * glopts, int samplerate)
{
glopts->samplerate_out = samplerate;
return (0);
}
int twolame_get_out_samplerate(twolame_options * glopts)
{
return (glopts->samplerate_out);
}
int twolame_set_brate(twolame_options * glopts, int bitrate)
{
glopts->bitrate = bitrate;
return (0);
}
int twolame_get_brate(twolame_options * glopts)
{
return (glopts->bitrate);
}
/* Because the LAME API isn't always the best way ;) */
int twolame_set_bitrate(twolame_options * glopts, int bitrate)
{
glopts->bitrate = bitrate;
return (0);
}
int twolame_get_bitrate(twolame_options * glopts)
{
return (glopts->bitrate);
}
int twolame_set_emphasis(twolame_options * glopts, TWOLAME_Emphasis emphasis)
{
if (emphasis != TWOLAME_EMPHASIS_N &&
emphasis != TWOLAME_EMPHASIS_5 && emphasis != TWOLAME_EMPHASIS_C)
return (-1);
glopts->emphasis = emphasis;
return (0);
}
TWOLAME_Emphasis twolame_get_emphasis(twolame_options * glopts)
{
return (glopts->emphasis);
}
int twolame_set_error_protection(twolame_options * glopts, int error_protection)
{
if (error_protection)
glopts->error_protection = TRUE;
else
error_protection = FALSE;
return (0);
}
int twolame_get_error_protection(twolame_options * glopts)
{
return (glopts->error_protection);
}
int twolame_set_copyright(twolame_options * glopts, int copyright)
{
if (copyright)
glopts->copyright = TRUE;
else
glopts->copyright = FALSE;
return (0);
}
int twolame_get_copyright(twolame_options * glopts)
{
return (glopts->copyright);
}
int twolame_set_original(twolame_options * glopts, int original)
{
if (original)
glopts->original = TRUE;
else
glopts->original = FALSE;
return (0);
}
int twolame_get_original(twolame_options * glopts)
{
return (glopts->original);
}
int twolame_set_padding(twolame_options * glopts, TWOLAME_Padding padding)
{
if (padding)
glopts->padding = TRUE;
else
glopts->padding = FALSE;
return (0);
}
TWOLAME_Padding twolame_get_padding(twolame_options * glopts)
{
return (glopts->padding);
}
int twolame_set_VBR(twolame_options * glopts, int vbr)
{
if (vbr)
glopts->vbr = TRUE;
else
glopts->vbr = FALSE;
return (0);
}
int twolame_get_VBR(twolame_options * glopts)
{
return (glopts->vbr);
}
int twolame_set_VBR_level(twolame_options * glopts, float level)
{
// Limit is -50 to 50, but useful range is -10 to 10
if (fabs(level) > 50.0)
return (-1);
else
glopts->vbrlevel = level;
return (0);
}
float twolame_get_VBR_level(twolame_options * glopts)
{
return (glopts->vbrlevel);
}
// Deprecated:
int twolame_set_VBR_q(twolame_options * glopts, float level)
{
// Limit is -50 to 50, but useful range is -10 to 10
if (fabs(level) > 50.0)
return (-1);
else
glopts->vbrlevel = level;
return (0);
}
// Deprecated:
float twolame_get_VBR_q(twolame_options * glopts)
{
return (glopts->vbrlevel);
}
int twolame_set_ATH_level(twolame_options * glopts, float level)
{
glopts->athlevel = level;
return (0);
}
float twolame_get_ATH_level(twolame_options * glopts)
{
return (glopts->athlevel);
}
int twolame_set_quick_mode(twolame_options * glopts, int quickmode)
{
if (quickmode)
glopts->quickmode = TRUE;
else
glopts->quickmode = FALSE;
return (0);
}
int twolame_get_quick_mode(twolame_options * glopts)
{
return (glopts->quickmode);
}
int twolame_set_quick_count(twolame_options * glopts, int quickcount)
{
glopts->quickcount = quickcount;
return (0);
}
int twolame_get_quick_count(twolame_options * glopts)
{
return (glopts->quickcount);
}
int twolame_set_verbosity(twolame_options * glopts, int verbosity)
{
if (verbosity < 0 || verbosity > 10) {
fprintf(stderr, "invalid verbosity level %i\n", verbosity);
return (-1);
}
glopts->verbosity = verbosity;
return (0);
}
int twolame_get_verbosity(twolame_options * glopts)
{
return (glopts->verbosity);
}
int twolame_set_VBR_max_bitrate_kbps(twolame_options * glopts, int bitrate)
{
glopts->vbr_max_bitrate = bitrate;
return (0);
}
int twolame_get_VBR_max_bitrate_kbps(twolame_options * glopts)
{
return (glopts->vbr_max_bitrate);
}
int twolame_set_num_ancillary_bits(twolame_options * glopts, int num)
{
if (num < 0)
return (-1);
glopts->num_ancillary_bits = num;
return (0);
}
int twolame_get_num_ancillary_bits(twolame_options * glopts)
{
return (glopts->num_ancillary_bits);
}
int twolame_set_energy_levels(twolame_options * glopts, int energylevels)
{
if (energylevels) {
glopts->do_energy_levels = TRUE;
} else {
glopts->do_energy_levels = FALSE;
}
return (0);
}
int twolame_get_energy_levels(twolame_options * glopts)
{
return (glopts->do_energy_levels);
}
int twolame_set_version(twolame_options * glopts, TWOLAME_MPEG_version version)
{
if (version != 0 && version != 1)
return (-1);
glopts->version = version;
return (0);
}
TWOLAME_MPEG_version twolame_get_version(twolame_options * glopts)
{
return (glopts->version);
}
const char *twolame_get_version_name(twolame_options * glopts)
{
return twolame_mpeg_version_name(glopts->version);
}
/* WARNING: DAB support is currently broken */
int twolame_set_DAB(twolame_options * glopts, int dab)
{
fprintf(stderr, "Warning: DAB support is currently broken in this version of TwoLAME.\n");
if (dab)
glopts->do_dab = TRUE;
else
glopts->do_dab = FALSE;
return (0);
}
int twolame_get_DAB(twolame_options * glopts)
{
return (glopts->do_dab);
}
int twolame_set_DAB_xpad_length(twolame_options * glopts, int length)
{
if (length < 0)
return (-1);
glopts->dab_xpad_len = length;
return (0);
}
int twolame_get_DAB_xpad_length(twolame_options * glopts)
{
return (glopts->dab_xpad_len);
}
int twolame_set_DAB_crc_length(twolame_options * glopts, int length)
{
if (length < 0)
return (-1);
else
glopts->dab_crc_len = length;
return (0);
}
int twolame_get_DAB_crc_length(twolame_options * glopts)
{
return (glopts->dab_crc_len);
}
// vim:ts=4:sw=4:nowrap:
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