+++ /dev/null
-/*****************************************************************************
- * 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
- *****************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <vlc_common.h>
-#include <vlc_plugin.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( N_("GME demuxer (Game_Music_Emu)" ) )
- set_capability( "demux", 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 = 0;
- vlc_value_t val;
-
- /* We accept file based on extention match */
- if( !p_demux->b_force )
- {
- if( p_demux->psz_file == NULL
- || ( ext = strrchr( p_demux->psz_file, '.' ) ) == 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 ) );
- if( unlikely( !p_sys ) )
- return VLC_ENOMEM;
-
- 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 );
- if( unlikely( !p_sys->p_data ) )
- {
- free( p_sys );
- return VLC_ENOMEM;
- }
- 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];
-
- /// \todo Reinstate meta codec name
- //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)
- {
- vlc_meta_SetTitle( p_meta, header.game );
- vlc_meta_SetArtist( p_meta, header.author );
- vlc_meta_SetCopyright( p_meta, header.copyright );
- p_sys->i_tracks = p_emu->track_count();
- }
- }
- break;
- case EMU_GBS:
- {
- INIT_EMU(Gbs)
- if (p_error == NULL)
- {
- vlc_meta_SetTitle( p_meta, header.game );
- vlc_meta_SetArtist( p_meta, header.author );
- vlc_meta_SetCopyright( p_meta, 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)
- {
- snprintf( psz_temp, 511, "%s (%s)", header.song, header.game );
- vlc_meta_SetTitle( p_meta, psz_temp );
- vlc_meta_SetArtist( p_meta, header.author );
- p_sys->i_tracks = p_emu->track_count();
- }
- }
- break;
- case EMU_GYM:
- {
- INIT_EMU(Gym)
- if (p_error == NULL)
- {
- snprintf( psz_temp, 511, "%s (%s)", header.song, header.game );
- vlc_meta_SetTitle( p_meta, psz_temp );
- vlc_meta_SetCopyright( p_meta, 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 = 0;
- 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, VLC_TS_0 + p_sys->i_time );
- p_frame->i_dts = p_frame->i_pts = VLC_TS_0 + 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 */
- 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;
-
- 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;
-
- 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**)xmalloc( 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*)xmalloc(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 *)xrealloc(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 *)xrealloc(out_buffer, *pi_osize);
- (*pp_obuffer) = out_buffer;
-}
-#endif
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