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