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vlc-2-2
Commit 763ec5c2 authored by Sreng Jean's avatar Sreng Jean
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First rough demux2 implementation for game music files using Game_Music_Emu 

(Super Nintendo (SPC), Nintendo NES (NSF), Nintendo Game Boy (GBS), 
Sega Genesis/Mega Drive (VGM/VGZ/GYM), and Sega Master System (VGM/VGZ)).
parent 67b30261
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Showing with 579 additions and 1 deletion
configure.ac
View file @ 763ec5c2
...@@ -2357,6 +2357,43 @@ then ...@@ -2357,6 +2357,43 @@ then
VLC_ADD_LDFLAGS([mpc],[-lmpcdec])]) VLC_ADD_LDFLAGS([mpc],[-lmpcdec])])
fi fi
dnl
dnl game music emu demux plugin
dnl
AC_ARG_ENABLE(gme,
[ --enable-gme Game Music Emu demux support (default enabled)])
if test "${enable_gme}" != "no" -a "${CXX}" != "";
then
AC_LANG_PUSH(C++)
AC_ARG_WITH(gme-tree,
[ --with-gme-tree=PATH gme tree for static linking])
if test -n "${with_gme_tree}"
then
AC_MSG_CHECKING(for libgme.a in ${with_mod_tree})
real_gme_tree="`cd ${with_gme_tree} 2>/dev/null && pwd`"
if test -z "${real_gme_tree}"
then
dnl The given directory can't be found
AC_MSG_RESULT(no)
AC_MSG_ERROR([cannot cd to ${with_gme_tree}])
fi
if test -f "${real_gme_tree}/gme/libgme.a"
then
dnl Use a custom gme
AC_MSG_RESULT(${real_gme_tree}/gme/libgme.a)
VLC_ADD_PLUGINS([gme])
VLC_ADD_LDFLAGS([gme],[${real_gme_tree}/gme/libgme.a])
VLC_ADD_CXXFLAGS([gme],[-I${real_gme_tree}/gme])
else
dnl The given gme wasn't built
AC_MSG_RESULT(no)
AC_MSG_ERROR([cannot find ${real_mod_tree}/gme/libgme.a, make sure you compiled gme in ${with_gme_tree}])
fi
else
AC_MSG_WARN([only static linking is available, you must provide a gme-tree])
fi
AC_LANG_POP(C++)
fi
dnl dnl
dnl Codec plugins dnl Codec plugins
...@@ -2835,7 +2872,7 @@ dnl ...@@ -2835,7 +2872,7 @@ dnl
dnl MP4 module dnl MP4 module
dnl dnl
AC_CHECK_HEADERS(zlib.h, [ AC_CHECK_HEADERS(zlib.h, [
VLC_ADD_LDFLAGS([mp4 skins2 sap mkv],[-lz]) VLC_ADD_LDFLAGS([mp4 skins2 sap mkv gme],[-lz])
] ) ] )
AC_CHECK_HEADERS(sysfs/libsysfs.h, [ AC_CHECK_HEADERS(sysfs/libsysfs.h, [
......
modules/demux/Modules.am
View file @ 763ec5c2
...@@ -26,3 +26,4 @@ SOURCES_xa = xa.c ...@@ -26,3 +26,4 @@ SOURCES_xa = xa.c
SOURCES_nuv = nuv.c SOURCES_nuv = nuv.c
SOURCES_nsc = nsc.c SOURCES_nsc = nsc.c
SOURCES_mpc = mpc.c SOURCES_mpc = mpc.c
SOURCES_gme = gme.cpp
modules/demux/gme.cpp 0 → 100644
View file @ 763ec5c2
/*****************************************************************************
* gme.cpp: Game Music files demuxer (using Game_Music_Emu)
*****************************************************************************
* Copyright (C) 2006 the VideoLAN team
* $Id$
*
* Authors: Jean Sreng <fox@videolan.org>
*
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <vlc/vlc.h>
#include <vlc/input.h>
#include "Nsf_Emu.h"
#include "Gbs_Emu.h"
#include "Vgm_Emu.h"
#include "Spc_Emu.h"
#include "Gym_Emu.h"
#ifdef HAVE_ZLIB_H
#include "zlib.h"
#endif
using namespace std;
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
vlc_module_begin();
set_shortname( "GME");
set_description( _("GME demuxer (Game_Music_Emu)" ) );
set_capability( "demux2", 10 );
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_DEMUX );
set_callbacks( Open, Close );
add_shortcut( "gme" );
vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
enum EmuType_e
{
EMU_NSF = 0,
EMU_GBS = 1,
EMU_VGM = 2,
EMU_SPC = 3,
EMU_GYM = 4
};
static const char* type_str[] =
{
"NSF (Nes)", "GBS (Gameboy)", "VGM (Master System/Game Gear/Genesis)", "SPC (Super Nes)", "GYM (Genesis)"
};
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;
int i_type;
int i_tracks;
Music_Emu *p_musicemu;
Emu_Mem_Reader *p_reader;
vlc_meta_t *p_meta;
};
static int Demux ( demux_t *p_demux );
static int Control( demux_t *p_demux, int i_query, va_list args );
#ifdef HAVE_ZLIB_H
static void inflate_gzbuf(uint8_t * p_buffer, size_t i_size, uint8_t ** pp_obuffer, size_t * pi_osize);
#endif
static const char* gme_ext[] =
{
"nsf", "nsfe", "gbs", "vgm", "vgz", "spc", "gym", 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;
vlc_value_t val;
/* We accept file based on extention match */
if( strcasecmp( p_demux->psz_demux, "gme" ) )
{
if( ( ext = strrchr( p_demux->psz_path, '.' ) ) == NULL ||
stream_Size( p_demux->s ) == 0 ) return VLC_EGENERIC;
ext++; /* skip . */
for( i = 0; gme_ext[i] != NULL; i++ )
{
if( !strcasecmp( ext, gme_ext[i] ) )
{
break;
}
}
if( gme_ext[i] == NULL ) return VLC_EGENERIC;
msg_Dbg( p_demux, "running GME demuxer (ext=%s)", gme_ext[i] );
}
#ifndef HAVE_ZLIB_H
if (i == 4) /* gzipped vgm */
{
msg_Dbg( p_demux, "zlib unvailable, unable to read gzipped vgz file" );
return VLC_EGENERIC;
}
#endif
/* Fill p_demux field */
p_demux->pf_demux = Demux;
p_demux->pf_control = Control;
p_demux->p_sys = p_sys = (demux_sys_t *)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 = (uint8_t *)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;
}
/* Prepare emulator */
#ifdef HAVE_ZLIB_H
if (i == 4) /* gzipped vgm */
{
uint8_t * p_outbuffer;
size_t i_outsize;
inflate_gzbuf( p_sys->p_data, p_sys->i_data, &p_outbuffer, &i_outsize );
if (p_outbuffer == NULL)
{
msg_Err( p_demux, "failed to understand the file : unable to inflate vgz 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;
}
free(p_sys->p_data);
p_sys->p_data = p_outbuffer;
p_sys->i_data = i_outsize;
}
#endif
p_sys->p_reader = new Emu_Mem_Reader( p_sys->p_data, p_sys->i_data );
switch(i)
{
case 0:
case 1:
p_sys->i_type = EMU_NSF;
break;
case 2:
p_sys->i_type = EMU_GBS;
break;
case 3:
case 4:
p_sys->i_type = EMU_VGM;
break;
case 5:
p_sys->i_type = EMU_SPC;
break;
case 6:
p_sys->i_type = EMU_GYM;
break;
}
/* Emulator specific initialization */
#define INIT_EMU(type) \
type##_Emu::header_t header; \
type##_Emu * p_emu = new type##_Emu; \
p_emu->init( 44100 ); \
p_sys->p_musicemu = p_emu; \
p_sys->p_reader->read( &header, sizeof(header) ); \
p_error = p_emu->load( header, *(p_sys->p_reader) );
p_sys->p_meta = vlc_meta_New();
char psz_temp[512];
#define SET_META(vlc_meta, meta_info...) \
snprintf( psz_temp, 511, meta_info ); \
vlc_meta_Add( p_sys->p_meta, vlc_meta, psz_temp );
SET_META( VLC_META_CODEC_NAME, type_str[p_sys->i_type])
const char * p_error;
switch(p_sys->i_type)
{
case EMU_NSF:
{
INIT_EMU(Nsf)
if (p_error == NULL)
{
SET_META( VLC_META_TITLE, "%s", header.game )
SET_META( VLC_META_AUTHOR, "%s", header.author )
SET_META( VLC_META_COPYRIGHT, "%s", header.copyright )
p_sys->i_tracks = p_emu->track_count();
}
}
break;
case EMU_GBS:
{
INIT_EMU(Gbs)
if (p_error == NULL)
{
SET_META( VLC_META_TITLE, "%s", header.game )
SET_META( VLC_META_AUTHOR, "%s", header.author )
SET_META( VLC_META_COPYRIGHT, "%s", header.copyright )
p_sys->i_tracks = p_emu->track_count();
}
}
break;
case EMU_VGM:
{
INIT_EMU(Vgm)
if (p_error == NULL)
{
p_sys->i_tracks = p_emu->track_count();
}
}
break;
case EMU_SPC:
{
INIT_EMU(Spc)
if (p_error == NULL)
{
SET_META( VLC_META_TITLE, "%s (%s)", header.song, header.game )
SET_META( VLC_META_AUTHOR, "%s", header.author )
p_sys->i_tracks = p_emu->track_count();
}
}
break;
case EMU_GYM:
{
INIT_EMU(Gym)
if (p_error == NULL)
{
SET_META( VLC_META_TITLE, "%s (%s)", header.song, header.game )
SET_META( VLC_META_COPYRIGHT, "%s", header.copyright )
p_sys->i_tracks = p_emu->track_count();
}
}
break;
}
if( p_error != NULL )
{
msg_Err( p_demux, "failed to understand the file : %s", p_error );
/* 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 = 314 * (int64_t)1000;
msg_Dbg( p_demux, "GME loaded type=%s title=%s tracks=%i", type_str[p_sys->i_type],
vlc_meta_GetValue( p_sys->p_meta, VLC_META_TITLE ), p_sys->i_tracks );
p_sys->p_musicemu->start_track( 0 );
#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 = 44100;
p_sys->fmt.audio.i_channels = 2;
p_sys->fmt.audio.i_bitspersample = 16;
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;
delete p_sys->p_musicemu;
delete p_sys->p_reader;
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;
const unsigned int i_buf = p_sys->fmt.audio.i_rate / 10 * i_bk;
const unsigned int i_emubuf = i_buf / sizeof(Music_Emu::sample_t);
const char * p_error;
Music_Emu::sample_t p_emubuf [i_emubuf];
p_frame = block_New( p_demux, i_buf );
p_sys->p_musicemu->play( i_emubuf, p_emubuf );
/*
if( p_error != NULL )
{
msg_Dbg( p_demux, "stop playing : %s", p_error );
block_Release( p_frame );
return 0;
}
*/
/* Copy emulator output to frame */
for (int i = 0; i<i_buf; i++) p_frame->p_buffer[i] = ((uint8_t *)p_emubuf)[i];
/* 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;
int i_idx;
vlc_meta_t **pp_meta;
switch( i_query )
{
case DEMUX_GET_META:
pp_meta = (vlc_meta_t **)va_arg( args, vlc_meta_t** );
if( p_sys->p_meta )
*pp_meta = vlc_meta_Duplicate( p_sys->p_meta );
else
*pp_meta = NULL;
return VLC_SUCCESS;
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_TITLE_INFO:
if( p_sys->i_tracks > 1 )
{
input_title_t ***ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
int *pi_int = (int*)va_arg( args, int* );
*pi_int = p_sys->i_tracks;
*ppp_title = (input_title_t**)malloc( sizeof( input_title_t**) * p_sys->i_tracks );
for( int i = 0; i < p_sys->i_tracks; i++ )
{
char psz_temp[16];
snprintf(psz_temp, 15, "Track %i", i);
(*ppp_title)[i] = vlc_input_title_New();
(*ppp_title)[i]->psz_name = strdup(psz_temp);
}
return VLC_SUCCESS;
}
return VLC_EGENERIC;
case DEMUX_SET_TITLE:
i_idx = (int)va_arg( args, int );
p_sys->p_musicemu->start_track( i_idx );
p_demux->info.i_title = i_idx;
p_demux->info.i_update = INPUT_UPDATE_TITLE;
msg_Dbg( p_demux, "set title %i", i_idx);
return VLC_SUCCESS;
case DEMUX_GET_FPS: /* meaningless */
default:
return VLC_EGENERIC;
}
}
#ifdef HAVE_ZLIB_H
static void inflate_gzbuf(uint8_t * p_buffer, size_t i_size, uint8_t ** pp_obuffer, size_t * pi_osize)
{
z_stream z_str;
int err;
size_t offset, out_size;
uint8_t * out_buffer;
(*pp_obuffer) = NULL;
(*pi_osize) = 0;
memset(&z_str, 0, sizeof(z_str));
out_size = i_size * 2;
out_buffer = (uint8_t*)malloc(out_size);
z_str.next_in = (unsigned char*)p_buffer;
z_str.avail_in = i_size;
z_str.next_out = out_buffer;
z_str.avail_out = out_size;
if ((err = inflateInit2(&z_str, 31)) != Z_OK) /* gzip format */
{
free(out_buffer);
return;
}
while ((err = inflate(&z_str, Z_FINISH)) != Z_STREAM_END)
{
switch(err)
{
case Z_OK:
break;
case Z_BUF_ERROR:
offset = z_str.next_out - out_buffer;
out_size *= 2;
out_buffer = (uint8_t *)realloc(out_buffer, out_size);
z_str.next_out = out_buffer + offset;
z_str.avail_out = out_size - offset;
break;
default:
inflateEnd(&z_str);
free(out_buffer);
return;
}
}
(*pi_osize) = out_size - z_str.avail_out;
inflateEnd(&z_str);
out_buffer = (uint8_t *)realloc(out_buffer, *pi_osize);
(*pp_obuffer) = out_buffer;
}
#endif
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