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vlc/modules/visualization/projectm.cpp
Rémi Duraffort e7bff62a97 Projectm: missing attach.
2010-03-07 21:57:48 +01:00

428 lines
13 KiB
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/*****************************************************************************
* projectm: visualization module based on libprojectM
*****************************************************************************
* Copyright (C) 2009 the VideoLAN team
* $Id$
*
* Authors: Rémi Duraffort <ivoire@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.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifndef __STDC_CONSTANT_MACROS
# define __STDC_CONSTANT_MACROS
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_aout.h>
#include <vlc_vout.h>
#include <vlc_vout_wrapper.h>
#include <vlc_filter.h>
#include <libprojectM/projectM.hpp>
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
#define CONFIG_TEXT N_("projectM configuration file")
#define CONFIG_LONGTEXT N_("File that will be used to configure the projectM " \
"module.")
#define PRESET_PATH_TXT N_("projectM preset path")
#define PRESET_PATH_LONGTXT N_("Path to the projectM preset directory")
#define TITLE_FONT_TXT N_("Title font")
#define TITLE_FONT_LONGTXT N_("Font used for the titles")
#define MENU_FONT_TXT N_("Font menu")
#define MENU_FONT_LONGTXT N_("Font used for the menus")
#define WIDTH_TEXT N_("Video width")
#define WIDTH_LONGTEXT N_("The width of the video window, in pixels.")
#define HEIGHT_TEXT N_("Video height")
#define HEIGHT_LONGTEXT N_("The height of the video window, in pixels.")
vlc_module_begin ()
set_shortname( N_("projectM"))
set_description( N_("libprojectM effect") )
set_capability( "visualization2", 0 )
set_category( CAT_AUDIO )
set_subcategory( SUBCAT_AUDIO_VISUAL )
#ifndef HAVE_PROJECTM2
add_file( "projectm-config", "/usr/share/projectM/config.inp", NULL,
CONFIG_TEXT, CONFIG_LONGTEXT, true )
#else
add_file( "projectm-preset-path", "/usr/share/projectM/presets", NULL,
PRESET_PATH_TXT, PRESET_PATH_LONGTXT, true )
add_file( "projectm-title-font", "/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf", NULL,
TITLE_FONT_TXT, TITLE_FONT_LONGTXT, true )
add_file( "projectm-menu-font", "/usr/share/fonts/truetype/ttf-dejavu/DejaVuSansMono.ttf", NULL,
MENU_FONT_TXT, MENU_FONT_LONGTXT, true )
#endif
add_integer( "projectm-width", 800, NULL, WIDTH_TEXT, WIDTH_LONGTEXT,
false )
add_integer( "projectm-height", 640, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT,
false )
add_shortcut( "projectm" )
set_callbacks( Open, Close )
vlc_module_end ()
/*****************************************************************************
* Local prototypes
*****************************************************************************/
struct filter_sys_t
{
/* */
vlc_thread_t thread;
vlc_sem_t ready;
bool b_error;
/* Opengl */
vout_thread_t *p_vout;
vout_display_t *p_vd;
/* libprojectM objects */
projectM *p_projectm;
#ifndef HAVE_PROJECTM2
char *psz_config;
#else
char *psz_preset_path;
char *psz_title_font;
char *psz_menu_font;
#endif
/* Window size */
int i_width;
int i_height;
/* audio info */
int i_channels;
/* */
vlc_mutex_t lock;
bool b_quit;
float *p_buffer;
int i_buffer_size;
int i_nb_samples;
};
static block_t *DoWork( filter_t *, block_t * );
static void *Thread( void * );
/**
* Open the module
* @param p_this: the filter object
* @return VLC_SUCCESS or vlc error codes
*/
static int Open( vlc_object_t * p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
/* Test the audio format */
if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 ||
p_filter->fmt_out.audio.i_format != VLC_CODEC_FL32 )
{
msg_Warn( p_filter, "bad input or output format" );
return VLC_EGENERIC;
}
if( !AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
{
msg_Warn( p_filter, "input and outut are not similar" );
return VLC_EGENERIC;
}
p_filter->pf_audio_filter = DoWork;
p_sys = p_filter->p_sys = (filter_sys_t*)malloc( sizeof( *p_sys ) );
if( !p_sys )
return VLC_ENOMEM;
/* Create the object for the thread */
vlc_sem_init( &p_sys->ready, 0 );
p_sys->b_error = false;
p_sys->b_quit = false;
p_sys->i_width = var_InheritInteger( p_filter, "projectm-width" );
p_sys->i_height = var_InheritInteger( p_filter, "projectm-height" );
p_sys->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
#ifndef HAVE_PROJECTM2
p_sys->psz_config = var_InheritString( p_filter, "projectm-config" );
#else
p_sys->psz_preset_path = var_InheritString( p_filter, "projectm-preset-path" );
p_sys->psz_title_font = var_InheritString( p_filter, "projectm-title-font" );
p_sys->psz_menu_font = var_InheritString( p_filter, "projectm-menu-font" );
#endif
vlc_mutex_init( &p_sys->lock );
p_sys->p_buffer = NULL;
p_sys->i_buffer_size = 0;
p_sys->i_nb_samples = 0;
/* Create the thread */
if( vlc_clone( &p_sys->thread, Thread, p_filter, VLC_THREAD_PRIORITY_LOW ) )
goto error;
vlc_sem_wait( &p_sys->ready );
if( p_sys->b_error )
{
vlc_join( p_sys->thread, NULL );
goto error;
}
return VLC_SUCCESS;
error:
vlc_sem_destroy( &p_sys->ready );
free (p_sys );
return VLC_EGENERIC;
}
/**
* Close the module
* @param p_this: the filter object
*/
static void Close( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys = p_filter->p_sys;
/* Stop the thread
* XXX vlc_cleanup_push does not seems to work with C++ so no
* vlc_cancel()... */
vlc_mutex_lock( &p_sys->lock );
p_sys->b_quit = true;
vlc_mutex_unlock( &p_sys->lock );
vlc_join( p_sys->thread, NULL );
/* Free the ressources */
vlc_sem_destroy( &p_sys->ready );
vlc_mutex_destroy( &p_sys->lock );
free( p_sys->p_buffer );
#ifndef HAVE_PROJECTM2
free( p_sys->psz_config );
#else
free( p_sys->psz_preset_path );
free( p_sys->psz_title_font );
free( p_sys->psz_menu_font );
#endif
free( p_sys );
}
/**
* Do the actual work with the new sample
* @param p_aout: audio output object
* @param p_filter: filter object
* @param p_in_buf: input buffer
* @param p_out_buf: output buffer
*/
static block_t *DoWork( filter_t *p_filter, block_t *p_in_buf )
{
filter_sys_t *p_sys = p_filter->p_sys;
vlc_mutex_lock( &p_sys->lock );
if( p_sys->i_buffer_size > 0 )
{
p_sys->i_nb_samples = __MIN( p_sys->i_buffer_size,
p_in_buf->i_nb_samples );
const float *p_src = (float*)p_in_buf->p_buffer;
for( int i = 0; i < p_sys->i_nb_samples; i++ )
{
float v = 0;
for( int j = 0; j < p_sys->i_channels; j++ )
v += p_src[p_sys->i_channels * i + j];
p_sys->p_buffer[i] = v / p_sys->i_channels;
}
}
vlc_mutex_unlock( &p_sys->lock );
return p_in_buf;
}
/**
* Variable callback for the dummy vout
*/
static int VoutCallback( vlc_object_t *p_vout, char const *psz_name,
vlc_value_t oldv, vlc_value_t newv, void *p_data )
{
vout_display_t *p_vd = (vout_display_t*)p_data;
if( !strcmp(psz_name, "fullscreen") )
{
vout_SetDisplayFullscreen( p_vd, newv.b_bool );
}
return VLC_SUCCESS;
}
/**
* ProjectM update thread which do the rendering
* @param p_this: the p_thread object
*/
static void *Thread( void *p_data )
{
filter_t *p_filter = (filter_t*)p_data;
filter_sys_t *p_sys = p_filter->p_sys;
int cancel = vlc_savecancel();
video_format_t fmt;
vout_opengl_t *gl;
int i_last_width = 0;
int i_last_height = 0;
#ifdef HAVE_PROJECTM2
projectM::Settings settings;
#endif
/* Create the openGL provider */
p_sys->p_vout =
(vout_thread_t *)vlc_object_create( p_filter, sizeof(vout_thread_t) );
if( !p_sys->p_vout )
goto error;
vlc_object_attach( p_sys->p_vout, p_filter );
/* */
video_format_Init( &fmt, 0 );
video_format_Setup( &fmt, VLC_CODEC_RGB32,
p_sys->i_width, p_sys->i_height, 0, 1 );
fmt.i_sar_num = 1;
fmt.i_sar_den = 1;
vout_display_state_t state;
memset( &state, 0, sizeof(state) );
state.cfg.display.sar.num = 1;
state.cfg.display.sar.den = 1;
state.cfg.is_display_filled = true;
state.cfg.zoom.num = 1;
state.cfg.zoom.den = 1;
state.sar.num = 1;
state.sar.den = 1;
p_sys->p_vd = vout_NewDisplay( p_sys->p_vout, &fmt, &state, "opengl",
300000, 1000000 );
if( !p_sys->p_vd )
{
vlc_object_release( p_sys->p_vout );
goto error;
}
var_Create( p_sys->p_vout, "fullscreen", VLC_VAR_BOOL );
var_AddCallback( p_sys->p_vout, "fullscreen", VoutCallback, p_sys->p_vd );
gl = vout_GetDisplayOpengl( p_sys->p_vd );
if( !gl )
{
vout_DeleteDisplay( p_sys->p_vd, NULL );
vlc_object_release( p_sys->p_vout );
goto error;
}
/* Create the projectM object */
#ifndef HAVE_PROJECTM2
p_sys->p_projectm = new projectM( p_sys->psz_config );
#else
settings.meshX = 32;
settings.meshY = 24;
settings.fps = 35;
settings.textureSize = 1024;
settings.windowWidth = p_sys->i_width;
settings.windowHeight = p_sys->i_height;
settings.presetURL = p_sys->psz_preset_path;
settings.titleFontURL = p_sys->psz_title_font;
settings.menuFontURL = p_sys->psz_menu_font;
settings.smoothPresetDuration = 5;
settings.presetDuration = 30;
settings.beatSensitivity = 10;
settings.aspectCorrection = 1;
settings.easterEgg = 1;
settings.shuffleEnabled = 1;
p_sys->p_projectm = new projectM( settings );
#endif
p_sys->i_buffer_size = p_sys->p_projectm->pcm()->maxsamples;
p_sys->p_buffer = (float*)calloc( p_sys->i_buffer_size,
sizeof( float ) );
vlc_sem_post( &p_sys->ready );
/* TODO: Give to projectm the name of the input
p_sys->p_projectm->projectM_setTitle( "" ); */
/* */
for( ;; )
{
const mtime_t i_deadline = mdate() + CLOCK_FREQ / 50; /* 50 fps max */
/* Manage the events */
vout_ManageDisplay( p_sys->p_vd, true );
if( p_sys->p_vd->cfg->display.width != i_last_width ||
p_sys->p_vd->cfg->display.height != i_last_height )
{
/* FIXME it is not perfect as we will have black bands */
vout_display_place_t place;
vout_display_PlacePicture( &place, &p_sys->p_vd->source, p_sys->p_vd->cfg, false );
p_sys->p_projectm->projectM_resetGL( place.width, place.height );
i_last_width = p_sys->p_vd->cfg->display.width;
i_last_height = p_sys->p_vd->cfg->display.height;
}
/* Render the image and swap the buffers */
vlc_mutex_lock( &p_sys->lock );
if( p_sys->i_nb_samples > 0 )
{
p_sys->p_projectm->pcm()->addPCMfloat( p_sys->p_buffer,
p_sys->i_nb_samples );
p_sys->i_nb_samples = 0;
}
if( p_sys->b_quit )
{
vlc_mutex_unlock( &p_sys->lock );
delete p_sys->p_projectm;
vout_DeleteDisplay( p_sys->p_vd, NULL );
vlc_object_release( p_sys->p_vout );
return NULL;
}
vlc_mutex_unlock( &p_sys->lock );
p_sys->p_projectm->renderFrame();
/* */
mwait( i_deadline );
if( !vout_opengl_Lock(gl) )
{
vout_opengl_Swap( gl );
vout_opengl_Unlock( gl );
}
}
abort();
error:
p_sys->b_error = true;
vlc_sem_post( &p_sys->ready );
return NULL;
}
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