--- /dev/null
+/*****************************************************************************
+ * vsxu.cpp: visualization module wrapper for Vovoid VSXu
+ *****************************************************************************
+ * Copyright © 2009-2012 the VideoLAN team, Vovoid Media Technologies
+ * $Id$
+ *
+ * Authors: Rémi Duraffort <ivoire@videolan.org>
+ * Laurent Aimar
+ * Jonatan "jaw" Wallmander
+ *
+ * Used the projectM implementation as reference for this file.
+ *
+ * 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_opengl.h>
+
+// vsxu manager include
+#include <vsx_manager.h>
+#include <logo_intro.h>
+
+// class to handle cyclic buffer
+#include "cyclic_buffer.h"
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close ( vlc_object_t * );
+
+#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_("vsxu"))
+ set_description( N_("vsxu") )
+ set_capability( "visualization2", 0 )
+ set_category( CAT_AUDIO )
+ set_subcategory( SUBCAT_AUDIO_VISUAL )
+ add_integer( "vsxu-width", 1280, WIDTH_TEXT, WIDTH_LONGTEXT,
+ false )
+ add_integer( "vsxu-height", 800, HEIGHT_TEXT, HEIGHT_LONGTEXT,
+ false )
+ add_shortcut( "vsxu" )
+ set_callbacks( Open, Close )
+vlc_module_end ()
+
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+
+struct filter_sys_t
+{
+ vlc_thread_t thread;
+
+ vlc_sem_t ready;
+
+ vlc_mutex_t lock;
+
+ // mutex around the cyclic block
+ vlc_mutex_t cyclic_block_mutex;
+
+ // cyclic buffer to cache sound frames in
+ cyclic_block_queue* vsxu_cyclic_buffer;
+
+ int i_width;
+ int i_height;
+ int i_channels;
+
+ bool b_error;
+ bool b_quit;
+};
+
+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_sys = p_filter->p_sys = (filter_sys_t*)malloc( sizeof( *p_sys ) );
+ if( unlikely( !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, "vsxu-width" );
+ p_sys->i_height = var_InheritInteger( p_filter, "vsxu-height" );
+ p_sys->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
+ vlc_mutex_init( &p_sys->lock );
+ vlc_mutex_init( &p_sys->cyclic_block_mutex );
+ p_sys->vsxu_cyclic_buffer = new cyclic_block_queue();
+
+
+ /* 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;
+ }
+
+ p_filter->pf_audio_filter = DoWork;
+
+ 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;
+
+ 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 );
+ delete p_sys->vsxu_cyclic_buffer;
+ free( p_sys );
+}
+
+/**
+ * Do the actual work with the new sample
+ * @param p_filter: filter object
+ * @param p_in_buf: input 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 );
+ vlc_mutex_lock( &p_sys->cyclic_block_mutex );
+
+ unsigned i_nb_samples = __MIN( 1024,
+ p_in_buf->i_nb_samples );
+
+ const float *p_src = (float*)p_in_buf->p_buffer;
+ // iterate block holder
+ size_t i_bh_data_iter = 0;
+
+ // calc 512-byte-aligned sample count to grab, we don't need more
+ unsigned i_num_samples = i_nb_samples - i_nb_samples % 512;
+
+ // muls are cheaper than divs
+ float f_onedivchannels = 1.0f / (float)p_sys->i_channels;
+
+ block_holder* p_block_holder = p_sys->vsxu_cyclic_buffer->get_insertion_object();
+ p_block_holder->pts = p_in_buf->i_pts;
+ for( unsigned i = 0; i < i_num_samples; i++ )
+ {
+ float f_v = 0;
+ for( int j = 0; j < p_sys->i_channels; j++ )
+ {
+ f_v += p_src[p_sys->i_channels * i + j];
+ }
+
+ // insert into our little cyclic buffer
+ p_block_holder->data[i_bh_data_iter] = f_v * f_onedivchannels;
+ i_bh_data_iter++;
+ if (i_bh_data_iter == 512 && i < i_num_samples-256)
+ {
+ p_block_holder = p_sys->vsxu_cyclic_buffer->get_insertion_object();
+ p_block_holder->pts = p_in_buf->i_pts + 11609;
+
+ i_bh_data_iter = 0;
+ }
+ }
+
+ vlc_mutex_unlock( &p_sys->cyclic_block_mutex );
+ 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 )
+{
+ VLC_UNUSED( p_vout ); VLC_UNUSED( oldv );
+ 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;
+}
+
+/**
+ * VSXu 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;
+
+ // our abstract manager holder
+ vsx_manager_abs* manager = 0;
+
+ // temp audio buffer for sending to vsxu through manager
+ float f_sample_buf[512];
+
+ // vsxu logo intro
+ vsx_logo_intro* intro = 0;
+
+ vout_display_t *p_vd;
+
+ video_format_t fmt;
+ vlc_gl_t *gl;
+
+ unsigned int i_last_width = 0;
+ unsigned int i_last_height = 0;
+ bool first = true;
+ bool run = true;
+
+ /* Create the openGL provider */
+ vout_thread_t *p_vout;
+
+ p_vout = (vout_thread_t *)vlc_object_create( p_filter, sizeof(vout_thread_t) );
+ if( !p_vout )
+ goto error;
+
+ 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_vd = vout_NewDisplay( p_vout, &fmt, &state, "opengl", 300000, 1000000 );
+ if( !p_vd )
+ {
+ vlc_object_release( p_vout );
+ goto error;
+ }
+ var_Create( p_vout, "fullscreen", VLC_VAR_BOOL );
+ var_AddCallback( p_vout, "fullscreen", VoutCallback, p_vd );
+
+ gl = vout_GetDisplayOpengl( p_vd );
+ if( !gl )
+ {
+ var_DelCallback( p_vout, "fullscreen", VoutCallback, p_vd );
+ vout_DeleteDisplay( p_vd, NULL );
+ vlc_object_release( p_vout );
+ goto error;
+ }
+
+ // tell main thread we are ready
+ vlc_sem_post( &p_sys->ready );
+
+ while ( run )
+ {
+ /* Manage the events */
+ vout_ManageDisplay( p_vd, true );
+ if( p_vd->cfg->display.width != i_last_width ||
+ 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_vd->source, p_vd->cfg, false );
+
+ i_last_width = p_vd->cfg->display.width;
+ i_last_height = p_vd->cfg->display.height;
+ }
+
+ // look for control commands from outside the thread
+ vlc_mutex_lock( &p_sys->lock );
+ if( p_sys->b_quit )
+ {
+ run = false;
+ }
+ vlc_mutex_unlock( &p_sys->lock );
+
+ if (first)
+ {
+ // only run this once
+ first = false;
+
+ // create a new manager
+ manager = manager_factory();
+
+ // init manager with the shared path and sound input type.
+ manager->init( 0, "media_player" );
+
+ // only show logo once
+ // keep track of iterations
+ static int i_iterations = 0;
+ if ( i_iterations++ < 1 )
+ {
+ intro = new vsx_logo_intro();
+ intro->set_destroy_textures( false );
+ }
+ }
+
+ // lock cyclic buffer mutex and copy floats
+ vlc_mutex_lock( &p_sys->cyclic_block_mutex );
+ block_holder* bh = p_sys->vsxu_cyclic_buffer->consume();
+ memcpy( &f_sample_buf[0], (void*)(&bh->data[0]), sizeof(float) * 512 );
+ vlc_mutex_unlock( &p_sys->cyclic_block_mutex );
+
+ // send sound pointer to vsxu
+ manager->set_sound_wave( &f_sample_buf[0] );
+
+ // render vsxu engine
+ if (manager) manager->render();
+
+ // render intro
+ if (intro) intro->draw();
+
+ // swap buffers etc.
+ if( !vlc_gl_Lock(gl) )
+ {
+ vlc_gl_Swap( gl );
+ vlc_gl_Unlock( gl );
+ }
+ }
+
+ // stop vsxu nicely (unloads textures and frees memory)
+ if (manager) manager->stop();
+
+ // call manager factory to destruct our manager object
+ if (manager) manager_destroy( manager );
+
+ // delete the intro (if ever allocated)
+ if (intro) delete intro;
+
+ var_DelCallback( p_vout, "fullscreen", VoutCallback, p_vd );
+
+ // clean out vlc opengl stuff
+ vout_DeleteDisplay( p_vd, NULL );
+ vlc_object_release( p_vout );
+
+ // clean up the cyclic buffer
+ vlc_mutex_lock( &p_sys->cyclic_block_mutex );
+ p_sys->vsxu_cyclic_buffer->reset();
+ vlc_mutex_unlock( &p_sys->cyclic_block_mutex );
+
+ // die
+ return NULL;
+
+error:
+ p_sys->b_error = true;
+ vlc_sem_post( &p_sys->ready );
+ return NULL;
+}
+
projects / vlc / commitdiff