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vlc/modules/demux/mod.c
Rémi Denis-Courmont fe087a3828 Make Zorglub less unhappy
2005-07-09 06:17:09 +00:00

332 lines
12 KiB
C
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/*****************************************************************************
* mod.c: MOD file demuxer (using libmodplug)
*****************************************************************************
* Copyright (C) 2004 the VideoLAN team
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* This program 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.
*
* 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 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <vlc/vlc.h>
#include <vlc/input.h>
#include <libmodplug/modplug.h>
/* TODO:
* - extend demux control to query meta data (demuxer should NEVER touch
* playlist itself)
* - FIXME test endian of samples
* - ...
*/
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
vlc_module_begin();
set_shortname( "MOD");
set_description( _("MOD demuxer (libmodplug)" ) );
set_capability( "demux2", 10 );
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_DEMUX );
add_bool( "mod-noisereduction", VLC_TRUE, NULL, N_("Noise reduction"), N_("Noise reduction"), VLC_FALSE );
add_bool( "mod-reverb", VLC_FALSE, NULL, N_("Reverb"), N_("Reverb"), VLC_FALSE );
add_integer_with_range( "mod-reverb-level", 0, 0, 100, NULL, N_("Reverb level (0-100)"), N_("Reverb level (0-100 defaults to 0)"), VLC_FALSE );
add_integer_with_range( "mod-reverb-delay", 40, 0, 1000, NULL, N_("Reverb delay (ms)"), N_("Reverb delay in ms (usually 40-200ms)"), VLC_FALSE );
add_bool( "mod-megabass", VLC_FALSE, NULL, N_("Mega bass"), N_("Mega bass"), VLC_FALSE );
add_integer_with_range( "mod-megabass-level", 0, 0, 100, NULL, N_("Mega bass level (0-100)"), N_("Mega bass level (0-100 defaults to 0)"), VLC_FALSE );
add_integer_with_range( "mod-megabass-range", 10, 10, 100, NULL, N_("Mega bass cut off (Hz)"), N_("Mega bass cut off (10-100Hz)"), VLC_FALSE );
add_bool( "mod-surround", VLC_FALSE, NULL, N_("Surround"), N_("Surround"), VLC_FALSE );
add_integer_with_range( "mod-surround-level", 0, 0, 100, NULL, N_("Surround level (0-100)"), N_("Surround level (0-100 defaults to 0)"), VLC_FALSE );
add_integer_with_range( "mod-surround-delay", 5, 0, 1000, NULL, N_("Surround delay (ms)"), N_("Surround delay in ms (usually 5-40ms)"), VLC_FALSE );
set_callbacks( Open, Close );
add_shortcut( "mod" );
vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
struct demux_sys_t
{
es_format_t fmt;
es_out_id_t *es;
int64_t i_time;
int64_t i_length;
int i_data;
uint8_t *p_data;
ModPlugFile *f;
};
static int Demux ( demux_t *p_demux );
static int Control( demux_t *p_demux, int i_query, va_list args );
static const char* mod_ext[] =
{
"mod", "s3m", "xm", "it", "669", "amf", "ams", "dbm", "dmf", "dsm",
"far", "mdl", "med", "mtm", "okt", "ptm", "stm", "ult", "umx", "mt2",
"psm", NULL
};
/*****************************************************************************
* Open
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys;
char *ext;
int i;
ModPlug_Settings settings;
vlc_value_t val;
/* We accept file based on extention match */
if( strcasecmp( p_demux->psz_demux, "mod" ) )
{
if( ( ext = strchr( p_demux->psz_path, '.' ) ) == NULL ||
stream_Size( p_demux->s ) == 0 ) return VLC_EGENERIC;
ext++; /* skip . */
for( i = 0; mod_ext[i] != NULL; i++ )
{
if( !strcasecmp( ext, mod_ext[i] ) )
{
break;
}
}
if( mod_ext[i] == NULL ) return VLC_EGENERIC;
msg_Dbg( p_demux, "running MOD demuxer (ext=%s)", mod_ext[i] );
}
/* Fill p_demux field */
p_demux->pf_demux = Demux;
p_demux->pf_control = Control;
p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
msg_Dbg( p_demux, "loading complete file (could be long)" );
p_sys->i_data = stream_Size( p_demux->s );
p_sys->p_data = malloc( p_sys->i_data );
p_sys->i_data = stream_Read( p_demux->s, p_sys->p_data, p_sys->i_data );
if( p_sys->i_data <= 0 )
{
msg_Err( p_demux, "failed to read the complete file" );
free( p_sys->p_data );
free( p_sys );
return VLC_EGENERIC;
}
/* Create our config variable */
var_Create( p_demux, "mod-noisereduction", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-reverb", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-reverb-level", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-reverb-delay", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-megabass", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-megabass-level", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-megabass-range", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-surround", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-surround-level", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
var_Create( p_demux, "mod-surround-delay", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
/* Configure modplug before loading the file */
ModPlug_GetSettings( &settings );
settings.mFlags = MODPLUG_ENABLE_OVERSAMPLING;
settings.mChannels = 2;
settings.mBits = 16;
settings.mFrequency = 44100;
settings.mResamplingMode = MODPLUG_RESAMPLE_FIR;
var_Get( p_demux, "mod-noisereduction", &val );
if( val.b_bool) settings.mFlags |= MODPLUG_ENABLE_NOISE_REDUCTION;
var_Get( p_demux, "mod-reverb", &val );
if( val.b_bool) settings.mFlags |= MODPLUG_ENABLE_REVERB;
var_Get( p_demux, "mod-reverb-level", &val );
settings.mReverbDepth = val.i_int;
var_Get( p_demux, "mod-reverb-delay", &val );
settings.mReverbDelay = val.i_int;
var_Get( p_demux, "mod-megabass", &val );
if( val.b_bool) settings.mFlags |= MODPLUG_ENABLE_MEGABASS;
var_Get( p_demux, "mod-megabass-level", &val );
settings.mBassAmount = val.i_int;
var_Get( p_demux, "mod-megabass-range", &val );
settings.mBassRange = val.i_int;
var_Get( p_demux, "mod-surround", &val );
if( val.b_bool) settings.mFlags |= MODPLUG_ENABLE_SURROUND;
var_Get( p_demux, "mod-surround-level", &val );
settings.mSurroundDepth = val.i_int;
var_Get( p_demux, "mod-surround-delay", &val );
settings.mSurroundDelay = val.i_int;
ModPlug_SetSettings( &settings );
if( ( p_sys->f = ModPlug_Load( p_sys->p_data, p_sys->i_data ) ) == NULL )
{
msg_Err( p_demux, "failed to understand the file" );
/* we try to seek to recover for other plugin */
stream_Seek( p_demux->s, 0 );
free( p_sys->p_data );
free( p_sys );
return VLC_EGENERIC;
}
/* init time */
p_sys->i_time = 1;
p_sys->i_length = ModPlug_GetLength( p_sys->f ) * (int64_t)1000;
msg_Dbg( p_demux, "MOD loaded name=%s lenght="I64Fd"ms",
ModPlug_GetName( p_sys->f ),
p_sys->i_length );
#ifdef WORDS_BIGENDIAN
es_format_Init( &p_sys->fmt, AUDIO_ES, VLC_FOURCC( 't', 'w', 'o', 's' ) );
#else
es_format_Init( &p_sys->fmt, AUDIO_ES, VLC_FOURCC( 'a', 'r', 'a', 'w' ) );
#endif
p_sys->fmt.audio.i_rate = settings.mFrequency;
p_sys->fmt.audio.i_channels = settings.mChannels;
p_sys->fmt.audio.i_bitspersample = settings.mBits;
p_sys->es = es_out_Add( p_demux->out, &p_sys->fmt );
return VLC_SUCCESS;
}
/*****************************************************************************
* Close
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys = p_demux->p_sys;
ModPlug_Unload( p_sys->f );
free( p_sys->p_data );
free( p_sys );
}
/*****************************************************************************
* Demux:
*****************************************************************************/
static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_frame;
int i_bk = ( p_sys->fmt.audio.i_bitspersample / 8 ) *
p_sys->fmt.audio.i_channels;
p_frame = block_New( p_demux, p_sys->fmt.audio.i_rate / 10 * i_bk );
p_frame->i_buffer = ModPlug_Read( p_sys->f, p_frame->p_buffer, p_frame->i_buffer );
if( p_frame->i_buffer <= 0 )
{
/* EOF */
block_Release( p_frame );
return 0;
}
/* Set PCR */
es_out_Control( p_demux->out, ES_OUT_SET_PCR, (int64_t)p_sys->i_time );
/* We should use p_frame->i_buffer */
p_sys->i_time += (int64_t)1000000 * p_frame->i_buffer / i_bk / p_sys->fmt.audio.i_rate;
/* Send data */
p_frame->i_dts = p_frame->i_pts = p_sys->i_time;
es_out_Send( p_demux->out, p_sys->es, p_frame );
return 1;
}
/*****************************************************************************
* Control:
*****************************************************************************/
static int Control( demux_t *p_demux, int i_query, va_list args )
{
demux_sys_t *p_sys = p_demux->p_sys;
double f, *pf;
int64_t i64, *pi64;
switch( i_query )
{
case DEMUX_GET_POSITION:
pf = (double*) va_arg( args, double* );
if( p_sys->i_length > 0 )
{
*pf = (double)p_sys->i_time / (double)p_sys->i_length;
return VLC_SUCCESS;
}
return VLC_EGENERIC;
case DEMUX_SET_POSITION:
f = (double) va_arg( args, double );
i64 = f * p_sys->i_length;
if( i64 >= 0 && i64 <= p_sys->i_length )
{
ModPlug_Seek( p_sys->f, i64 / 1000 );
p_sys->i_time = i64 + 1;
es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
return VLC_SUCCESS;
}
return VLC_EGENERIC;
case DEMUX_GET_TIME:
pi64 = (int64_t*)va_arg( args, int64_t * );
*pi64 = p_sys->i_time;
return VLC_SUCCESS;
case DEMUX_GET_LENGTH:
pi64 = (int64_t*)va_arg( args, int64_t * );
*pi64 = p_sys->i_length;
return VLC_SUCCESS;
case DEMUX_SET_TIME:
i64 = (int64_t)va_arg( args, int64_t );
if( i64 >= 0 && i64 <= p_sys->i_length )
{
ModPlug_Seek( p_sys->f, i64 / 1000 );
p_sys->i_time = i64 + 1;
es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
return VLC_SUCCESS;
}
return VLC_EGENERIC;
case DEMUX_GET_FPS: /* meaningless */
default:
return VLC_EGENERIC;
}
}
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