/*------------------------------------------------------------------------------
* Open an encoding session
*----------------------------------------------------------------------------*/
bool
LameLibEncoder :: open ( void )
throw ( Exception )
{
if ( isOpen() ) {
close();
}
lameGlobalFlags = lame_init();
// ugly lame returns -1 in a pointer on allocation errors
if ( !lameGlobalFlags || ((int)lameGlobalFlags) == -1 ) {
throw Exception( __FILE__, __LINE__,
"lame lib init error",
(int) lameGlobalFlags);
}
if ( 0 > lame_set_num_channels( lameGlobalFlags, getInChannel()) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting channels error",
getInChannel() );
}
if ( 0 > lame_set_mode( lameGlobalFlags,
getOutChannel() == 1 ? MONO : JOINT_STEREO) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting mode error",
JOINT_STEREO );
}
reportEvent( 5, "set lame mode", lame_get_mode( lameGlobalFlags));
reportEvent( 5,
"set lame channels",
lame_get_num_channels( lameGlobalFlags));
if ( 0 > lame_set_in_samplerate( lameGlobalFlags, getInSampleRate()) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting input sample rate error",
getInSampleRate() );
}
reportEvent( 5,
"set lame in sample rate",
lame_get_in_samplerate( lameGlobalFlags));
if ( 0 > lame_set_out_samplerate( lameGlobalFlags, getOutSampleRate()) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting output sample rate error",
getOutSampleRate() );
}
reportEvent( 5,
"set lame out sample rate",
lame_get_out_samplerate( lameGlobalFlags));
switch ( getOutBitrateMode() ) {
case cbr: {
if ( 0 > lame_set_brate( lameGlobalFlags, getOutBitrate()) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting output bit rate error",
getOutBitrate() );
}
reportEvent( 5,
"set lame bit rate",
lame_get_brate( lameGlobalFlags));
double d = (1.0 - getOutQuality()) * 10.0;
int q = int (d + 0.499999);
if ( 0 > lame_set_quality( lameGlobalFlags, q) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting quality error", q);
}
reportEvent( 5,
"set lame quality",
lame_get_quality( lameGlobalFlags));
} break;
case abr:
if ( 0 > lame_set_VBR( lameGlobalFlags,vbr_abr)) {
throw Exception( __FILE__, __LINE__,
"lame lib setting abr error", vbr_abr);
}
reportEvent( 5,
"set lame abr bitrate",
lame_get_VBR( lameGlobalFlags));
if ( 0 > lame_set_VBR_mean_bitrate_kbps( lameGlobalFlags,
getOutBitrate())) {
throw Exception( __FILE__, __LINE__,
"lame lib setting abr mean bitrate error",
getOutBitrate());
}
reportEvent( 5,
"set lame abr mean bitrate",
lame_get_VBR_mean_bitrate_kbps( lameGlobalFlags));
break;
case vbr: {
if ( 0 > lame_set_VBR( lameGlobalFlags, vbr_mtrh)) {
throw Exception( __FILE__, __LINE__,
"lame lib setting vbr error", vbr_mtrh );
}
reportEvent( 5,
"set lame vbr bitrate",
lame_get_VBR( lameGlobalFlags));
double d = (1.0 - getOutQuality()) * 10.0;
int q = int (d + 0.499999);
if ( 0 > lame_set_VBR_q( lameGlobalFlags, q) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting vbr quality error", q);
}
reportEvent( 5,
"set lame vbr quality",
lame_get_VBR_q( lameGlobalFlags));
} break;
}
if ( 0 > lame_set_lowpassfreq( lameGlobalFlags, lowpass) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting lowpass frequency error",
lowpass );
}
reportEvent( 5,
"set lame lowpass frequency",
lame_get_lowpassfreq( lameGlobalFlags));
if ( 0 > lame_set_highpassfreq( lameGlobalFlags, highpass) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting highpass frequency error",
lowpass );
}
reportEvent( 5,
"set lame highpass frequency",
lame_get_highpassfreq( lameGlobalFlags));
// not configurable lame settings
if ( 0 > lame_set_exp_nspsytune( lameGlobalFlags, 1) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting psycho acoustic model error");
}
reportEvent( 5,
"set lame psycho acoustic model",
lame_get_exp_nspsytune( lameGlobalFlags));
if ( 0 > lame_set_error_protection( lameGlobalFlags, 1) ) {
throw Exception( __FILE__, __LINE__,
"lame lib setting error protection error",
1 );
}
reportEvent( 5,
"set lame error protection",
lame_get_error_protection( lameGlobalFlags));
// let lame init its own params based on our settings
if ( 0 > lame_init_params( lameGlobalFlags) ) {
throw Exception( __FILE__, __LINE__,
"lame lib initializing params error" );
}
lame_print_config( lameGlobalFlags);
// open the underlying sink
if ( !sink->open() ) {
throw Exception( __FILE__, __LINE__,
"lame lib opening underlying sink error");
}
return true;
}
int
lame_encoder(lame_global_flags * gf, FILE * outf, int nogap, char *inPath,
char *outPath)
{
unsigned char mp3buffer[LAME_MAXMP3BUFFER];
int Buffer[2][1152];
int iread, imp3;
static const char *mode_names[2][4] = {
{"stereo", "j-stereo", "dual-ch", "single-ch"},
{"stereo", "force-ms", "dual-ch", "single-ch"}
};
int frames;
if (silent < 10) {
lame_print_config(gf); /* print useful information about options being used */
fprintf(stderr, "Encoding %s%s to %s\n",
strcmp(inPath, "-") ? inPath : "<stdin>",
strlen(inPath) + strlen(outPath) < 66 ? "" : "\n ",
strcmp(outPath, "-") ? outPath : "<stdout>");
fprintf(stderr,
"Encoding as %g kHz ", 1.e-3 * lame_get_out_samplerate(gf));
{
const char *appendix = "";
switch (lame_get_VBR(gf)) {
case vbr_mt:
case vbr_rh:
case vbr_mtrh:
appendix = "ca. ";
fprintf(stderr, "VBR(q=%i)", lame_get_VBR_q(gf));
break;
case vbr_abr:
fprintf(stderr, "average %d kbps",
lame_get_VBR_mean_bitrate_kbps(gf));
break;
default:
fprintf(stderr, "%3d kbps", lame_get_brate(gf));
break;
}
fprintf(stderr, " %s MPEG-%u%s Layer III (%s%gx) qval=%i\n",
mode_names[lame_get_force_ms(gf)][lame_get_mode(gf)],
2 - lame_get_version(gf),
lame_get_out_samplerate(gf) < 16000 ? ".5" : "",
appendix,
0.1 * (int) (10. * lame_get_compression_ratio(gf) + 0.5),
lame_get_quality(gf));
}
if (silent <= -10)
lame_print_internals(gf);
fflush(stderr);
}
/* encode until we hit eof */
do {
/* read in 'iread' samples */
iread = get_audio(gf, Buffer);
frames = lame_get_frameNum(gf);
/********************** status display *****************************/
if (silent <= 0) {
if (update_interval > 0) {
timestatus_klemm(gf);
}
else {
if (0 == frames % 50) {
#ifdef BRHIST
brhist_jump_back();
#endif
timestatus(lame_get_out_samplerate(gf),
frames,
lame_get_totalframes(gf),
lame_get_framesize(gf));
#ifdef BRHIST
if (brhist)
brhist_disp(gf);
#endif
}
}
}
/* encode */
imp3 = lame_encode_buffer_int(gf, Buffer[0], Buffer[1], iread,
mp3buffer, sizeof(mp3buffer));
/* was our output buffer big enough? */
if (imp3 < 0) {
if (imp3 == -1)
fprintf(stderr, "mp3 buffer is not big enough... \n");
else
fprintf(stderr, "mp3 internal error: error code=%i\n", imp3);
return 1;
}
if (fwrite(mp3buffer, 1, imp3, outf) != imp3) {
fprintf(stderr, "Error writing mp3 output \n");
return 1;
}
} while (iread);
if (nogap)
imp3 = lame_encode_flush_nogap(gf, mp3buffer, sizeof(mp3buffer)); /* may return one more mp3 frame */
else
imp3 = lame_encode_flush(gf, mp3buffer, sizeof(mp3buffer)); /* may return one more mp3 frame */
if (imp3 < 0) {
if (imp3 == -1)
fprintf(stderr, "mp3 buffer is not big enough... \n");
else
fprintf(stderr, "mp3 internal error: error code=%i\n", imp3);
return 1;
}
if (silent <= 0) {
#ifdef BRHIST
brhist_jump_back();
#endif
frames = lame_get_frameNum(gf);
timestatus(lame_get_out_samplerate(gf),
frames, lame_get_totalframes(gf), lame_get_framesize(gf));
#ifdef BRHIST
if (brhist) {
brhist_disp(gf);
}
brhist_disp_total(gf);
#endif
timestatus_finish();
}
fwrite(mp3buffer, 1, imp3, outf);
return 0;
}
bool ACMStream::open(const AEncodeProperties & the_Properties)
{
bool bResult = false;
// Init the MP3 Stream
// Init the global flags structure
gfp = lame_init();
// Set input sample frequency
lame_set_in_samplerate( gfp, my_SamplesPerSec );
// Set output sample frequency
lame_set_out_samplerate( gfp, my_OutBytesPerSec );
lame_set_num_channels( gfp, my_Channels );
if (my_Channels == 1)
lame_set_mode( gfp, MONO );
else
lame_set_mode( gfp, (MPEG_mode_e)the_Properties.GetChannelModeValue()) ; /// \todo Get the mode from the default configuration
// lame_set_VBR( gfp, vbr_off ); /// \note VBR not supported for the moment
lame_set_VBR( gfp, my_VBRMode ); /// \note VBR not supported for the moment
if (my_VBRMode == vbr_abr)
{
lame_set_VBR_q( gfp, 1 );
lame_set_VBR_mean_bitrate_kbps( gfp, (my_AvgBytesPerSec * 8 + 500) / 1000 );
if (24000 > lame_get_in_samplerate( gfp ))
{
// For MPEG-II
lame_set_VBR_min_bitrate_kbps( gfp, 8);
lame_set_VBR_max_bitrate_kbps( gfp, 160);
}
else
{
// For MPEG-I
lame_set_VBR_min_bitrate_kbps( gfp, 32);
lame_set_VBR_max_bitrate_kbps( gfp, 320);
}
}
// Set bitrate
lame_set_brate( gfp, my_AvgBytesPerSec * 8 / 1000 );
/// \todo Get the mode from the default configuration
// Set copyright flag?
lame_set_copyright( gfp, the_Properties.GetCopyrightMode()?1:0 );
// Do we have to tag it as non original
lame_set_original( gfp, the_Properties.GetOriginalMode()?1:0 );
// Add CRC?
lame_set_error_protection( gfp, the_Properties.GetCRCMode()?1:0 );
// Set private bit?
lame_set_extension( gfp, the_Properties.GetPrivateMode()?1:0 );
// INFO tag support not possible in ACM - it requires rewinding
// output stream to the beginning after encoding is finished.
lame_set_bWriteVbrTag( gfp, 0 );
if (0 == lame_init_params( gfp ))
{
//LAME encoding call will accept any number of samples.
if ( 0 == lame_get_version( gfp ) )
{
// For MPEG-II, only 576 samples per frame per channel
my_SamplesPerBlock = 576 * lame_get_num_channels( gfp );
}
else
{
// For MPEG-I, 1152 samples per frame per channel
my_SamplesPerBlock = 1152 * lame_get_num_channels( gfp );
}
}
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "version =%d",lame_get_version( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Layer =3");
switch ( lame_get_mode( gfp ) )
{
case STEREO: my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "mode =Stereo" ); break;
case JOINT_STEREO: my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "mode =Joint-Stereo" ); break;
case DUAL_CHANNEL: my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "mode =Forced Stereo" ); break;
case MONO: my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "mode =Mono" ); break;
case NOT_SET: /* FALLTROUGH */
default: my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "mode =Error (unknown)" ); break;
}
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "sampling frequency =%.1f kHz", lame_get_in_samplerate( gfp ) /1000.0 );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "bitrate =%d kbps", lame_get_brate( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Vbr Min bitrate =%d kbps", lame_get_VBR_min_bitrate_kbps( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Vbr Max bitrate =%d kbps", lame_get_VBR_max_bitrate_kbps( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Quality Setting =%d", lame_get_quality( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Low pass frequency =%d", lame_get_lowpassfreq( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Low pass width =%d", lame_get_lowpasswidth( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "High pass frequency =%d", lame_get_highpassfreq( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "High pass width =%d", lame_get_highpasswidth( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "No Short Blocks =%d", lame_get_no_short_blocks( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "de-emphasis =%d", lame_get_emphasis( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "private flag =%d", lame_get_extension( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "copyright flag =%d", lame_get_copyright( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "original flag =%d", lame_get_original( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "CRC =%s", lame_get_error_protection( gfp ) ? "on" : "off" );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Fast mode =%s", ( lame_get_quality( gfp ) )? "enabled" : "disabled" );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Force mid/side stereo =%s", ( lame_get_force_ms( gfp ) )?"enabled":"disabled" );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Padding Type =%d", lame_get_padding_type( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Disable Resorvoir =%d", lame_get_disable_reservoir( gfp ) );
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "VBR =%s, VBR_q =%d, VBR method =",
( lame_get_VBR( gfp ) !=vbr_off ) ? "enabled": "disabled",
lame_get_VBR_q( gfp ) );
switch ( lame_get_VBR( gfp ) )
{
case vbr_off: my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "vbr_off" ); break;
case vbr_mt : my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "vbr_mt" ); break;
case vbr_rh : my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "vbr_rh" ); break;
case vbr_mtrh: my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "vbr_mtrh" ); break;
case vbr_abr:
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "vbr_abr (average bitrate %d kbps)", lame_get_VBR_mean_bitrate_kbps( gfp ) );
break;
default:
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "error, unknown VBR setting");
break;
}
my_debug->OutPut(DEBUG_LEVEL_FUNC_DEBUG, "Write VBR Header =%s\n", ( lame_get_bWriteVbrTag( gfp ) ) ?"Yes":"No");
#ifdef FROM_DLL
beConfig.format.LHV1.dwReSampleRate = my_OutBytesPerSec; // force the user resampling
#endif // FROM_DLL
bResult = true;
return bResult;
}
int lame_encoder_impl_internal::get_vbr_mean_bitrate_kbps() const
{
return lame_get_VBR_mean_bitrate_kbps( m_Lame.get() );
}
void
encoder_progress_begin( lame_global_flags const* gf
, char const* inPath
, char const* outPath
)
{
brhist_init_package(gf);
global_encoder_progress.time_status_init = 0;
global_encoder_progress.last_time = 0;
global_encoder_progress.last_frame_num = 0;
if (global_ui_config.silent < 9) {
char* i_file = 0;
char* o_file = 0;
#if defined( _WIN32 ) && !defined(__MINGW32__)
inPath = i_file = utf8ToLocal8Bit(inPath);
outPath = o_file = utf8ToConsole8Bit(outPath);
#endif
lame_print_config(gf); /* print useful information about options being used */
console_printf("Encoding %s%s to %s\n",
strcmp(inPath, "-") ? inPath : "<stdin>",
strlen(inPath) + strlen(outPath) < 66 ? "" : "\n ",
strcmp(outPath, "-") ? outPath : "<stdout>");
free(i_file);
free(o_file);
console_printf("Encoding as %g kHz ", 1.e-3 * lame_get_out_samplerate(gf));
{
static const char *mode_names[2][4] = {
{"stereo", "j-stereo", "dual-ch", "single-ch"},
{"stereo", "force-ms", "dual-ch", "single-ch"}
};
switch (lame_get_VBR(gf)) {
case vbr_rh:
console_printf("%s MPEG-%u%s Layer III VBR(q=%g) qval=%i\n",
mode_names[lame_get_force_ms(gf)][lame_get_mode(gf)],
2 - lame_get_version(gf),
lame_get_out_samplerate(gf) < 16000 ? ".5" : "",
lame_get_VBR_quality(gf),
lame_get_quality(gf));
break;
case vbr_mt:
case vbr_mtrh:
console_printf("%s MPEG-%u%s Layer III VBR(q=%g)\n",
mode_names[lame_get_force_ms(gf)][lame_get_mode(gf)],
2 - lame_get_version(gf),
lame_get_out_samplerate(gf) < 16000 ? ".5" : "",
lame_get_VBR_quality(gf));
break;
case vbr_abr:
console_printf("%s MPEG-%u%s Layer III (%gx) average %d kbps qval=%i\n",
mode_names[lame_get_force_ms(gf)][lame_get_mode(gf)],
2 - lame_get_version(gf),
lame_get_out_samplerate(gf) < 16000 ? ".5" : "",
0.1 * (int) (10. * lame_get_compression_ratio(gf) + 0.5),
lame_get_VBR_mean_bitrate_kbps(gf),
lame_get_quality(gf));
break;
default:
console_printf("%s MPEG-%u%s Layer III (%gx) %3d kbps qval=%i\n",
mode_names[lame_get_force_ms(gf)][lame_get_mode(gf)],
2 - lame_get_version(gf),
lame_get_out_samplerate(gf) < 16000 ? ".5" : "",
0.1 * (int) (10. * lame_get_compression_ratio(gf) + 0.5),
lame_get_brate(gf),
lame_get_quality(gf));
break;
}
}
if (global_ui_config.silent <= -10) {
lame_print_internals(gf);
}
}
}
static int
apply_abr_preset(lame_global_flags * gfp, int preset, int enforce)
{
int k;
typedef struct {
int abr_kbps;
int quant_comp;
int quant_comp_s;
int safejoint;
FLOAT nsmsfix;
FLOAT st_lrm; /*short threshold */
FLOAT st_s;
FLOAT nsbass;
FLOAT scale;
FLOAT masking_adj;
FLOAT ath_lower;
FLOAT ath_curve;
FLOAT interch;
int sfscale;
} abr_presets_t;
/* *INDENT-OFF* */
/*
* Switch mappings for ABR mode
*/
const abr_presets_t abr_switch_map[] = {
/* kbps quant q_s safejoint nsmsfix st_lrm st_s ns-bass scale msk ath_lwr ath_curve interch , sfscale */
{ 8, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -30.0, 11, 0.0012, 1}, /* 8, impossible to use in stereo */
{ 16, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -25.0, 11, 0.0010, 1}, /* 16 */
{ 24, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -20.0, 11, 0.0010, 1}, /* 24 */
{ 32, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -15.0, 11, 0.0010, 1}, /* 32 */
{ 40, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -10.0, 11, 0.0009, 1}, /* 40 */
{ 48, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -10.0, 11, 0.0009, 1}, /* 48 */
{ 56, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -6.0, 11, 0.0008, 1}, /* 56 */
{ 64, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, -2.0, 11, 0.0008, 1}, /* 64 */
{ 80, 9, 9, 0, 0, 6.60, 145, 0, 0.95, 0, .0, 8, 0.0007, 1}, /* 80 */
{ 96, 9, 9, 0, 2.50, 6.60, 145, 0, 0.95, 0, 1.0, 5.5, 0.0006, 1}, /* 96 */
{112, 9, 9, 0, 2.25, 6.60, 145, 0, 0.95, 0, 2.0, 4.5, 0.0005, 1}, /* 112 */
{128, 9, 9, 0, 1.95, 6.40, 140, 0, 0.95, 0, 3.0, 4, 0.0002, 1}, /* 128 */
{160, 9, 9, 1, 1.79, 6.00, 135, 0, 0.95, -2, 5.0, 3.5, 0, 1}, /* 160 */
{192, 9, 9, 1, 1.49, 5.60, 125, 0, 0.97, -4, 7.0, 3, 0, 0}, /* 192 */
{224, 9, 9, 1, 1.25, 5.20, 125, 0, 0.98, -6, 9.0, 2, 0, 0}, /* 224 */
{256, 9, 9, 1, 0.97, 5.20, 125, 0, 1.00, -8, 10.0, 1, 0, 0}, /* 256 */
{320, 9, 9, 1, 0.90, 5.20, 125, 0, 1.00, -10, 12.0, 0, 0, 0} /* 320 */
};
/* *INDENT-ON* */
/* Variables for the ABR stuff */
int r;
int actual_bitrate = preset;
r = nearestBitrateFullIndex(preset);
(void) lame_set_VBR(gfp, vbr_abr);
(void) lame_set_VBR_mean_bitrate_kbps(gfp, (actual_bitrate));
(void) lame_set_VBR_mean_bitrate_kbps(gfp, min_int(lame_get_VBR_mean_bitrate_kbps(gfp), 320));
(void) lame_set_VBR_mean_bitrate_kbps(gfp, max_int(lame_get_VBR_mean_bitrate_kbps(gfp), 8));
(void) lame_set_brate(gfp, lame_get_VBR_mean_bitrate_kbps(gfp));
/* parameters for which there is no proper set/get interface */
if (abr_switch_map[r].safejoint > 0)
(void) lame_set_exp_nspsytune(gfp, lame_get_exp_nspsytune(gfp) | 2); /* safejoint */
if (abr_switch_map[r].sfscale > 0)
(void) lame_set_sfscale(gfp, 1);
/* ns-bass tweaks */
if (fabs(abr_switch_map[r].nsbass) > 0) {
k = (int) (abr_switch_map[r].nsbass * 4);
if (k < 0)
k += 64;
(void) lame_set_exp_nspsytune(gfp, lame_get_exp_nspsytune(gfp) | (k << 2));
}
SET_OPTION(quant_comp, abr_switch_map[r].quant_comp, -1);
SET_OPTION(quant_comp_short, abr_switch_map[r].quant_comp_s, -1);
SET_OPTION(msfix, abr_switch_map[r].nsmsfix, -1);
SET_OPTION(short_threshold_lrm, abr_switch_map[r].st_lrm, -1);
SET_OPTION(short_threshold_s, abr_switch_map[r].st_s, -1);
/* ABR seems to have big problems with clipping, especially at low bitrates */
/* so we compensate for that here by using a scale value depending on bitrate */
SET_OPTION(scale, abr_switch_map[r].scale, -1);
SET_OPTION(maskingadjust, abr_switch_map[r].masking_adj, 0);
if (abr_switch_map[r].masking_adj > 0) {
SET_OPTION(maskingadjust_short, abr_switch_map[r].masking_adj * .9, 0);
}
else {
SET_OPTION(maskingadjust_short, abr_switch_map[r].masking_adj * 1.1, 0);
}
SET_OPTION(ATHlower, abr_switch_map[r].ath_lower, 0);
SET_OPTION(ATHcurve, abr_switch_map[r].ath_curve, -1);
SET_OPTION(interChRatio, abr_switch_map[r].interch, -1);
return preset;
}
