--- /dev/null
+/*****************************************************************************
+ * audiobargraph_v.c : audiobargraph video plugin for vlc
+ *****************************************************************************
+ * Copyright (C) 2003-2006 the VideoLAN team
+ *
+ * Authors: Clement CHESNIN <clement.chesnin@gmail.com>
+ * Philippe COENT <philippe.coent@tdf.fr>
+ *
+ * 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 <assert.h>
+#include <string.h>
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_filter.h>
+
+#include <vlc_image.h>
+#include <vlc_osd.h>
+
+#ifdef LoadImage
+# undef LoadImage
+#endif
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+
+#define I_VALUES_TEXT N_("Value of the audio channels levels")
+#define I_VALUES_LONGTEXT N_("Value of the audio level of each channels between 0 and 1" \
+ "Each level should be separated with ':'.")
+#define POSX_TEXT N_("X coordinate")
+#define POSX_LONGTEXT N_("X coordinate of the bargraph." )
+#define POSY_TEXT N_("Y coordinate")
+#define POSY_LONGTEXT N_("Y coordinate of the bargraph." )
+#define TRANS_TEXT N_("Transparency of the bargraph")
+#define TRANS_LONGTEXT N_("Bargraph transparency value " \
+ "(from 0 for full transparency to 255 for full opacity)." )
+#define POS_TEXT N_("Bargraph position")
+#define POS_LONGTEXT N_( \
+ "Enforce the bargraph position on the video " \
+ "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
+ "also use combinations of these values, eg 6 = top-right).")
+#define ALARM_TEXT N_("Alarm")
+#define ALARM_LONGTEXT N_("Signals a silence and displays and alert " \
+ "(0=no alarm, 1=alarm).")
+#define BARWIDTH_TEXT N_("Bar width in pixel (default : 10)")
+#define BARWIDTH_LONGTEXT N_("Width in pixel of each bar in the BarGraph to be displayed " \
+ "(default : 10).")
+
+#define CFG_PREFIX "audiobargraph_v-"
+
+static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
+static const char *const ppsz_pos_descriptions[] =
+{ N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
+ N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
+
+static int OpenSub ( vlc_object_t * );
+static int OpenVideo( vlc_object_t * );
+static void Close ( vlc_object_t * );
+
+vlc_module_begin ()
+
+ set_category( CAT_VIDEO )
+ set_subcategory( SUBCAT_VIDEO_SUBPIC )
+
+ set_capability( "sub filter", 0 )
+ set_callbacks( OpenSub, Close )
+ set_description( N_("Audio Bar Graph Video sub filter") )
+ set_shortname( N_("Audio Bar Graph Video") )
+ add_shortcut( "audiobargraph_v" )
+
+ add_string( CFG_PREFIX "i_values", NULL, NULL, I_VALUES_TEXT, I_VALUES_LONGTEXT, false )
+ add_integer( CFG_PREFIX "x", 0, NULL, POSX_TEXT, POSX_LONGTEXT, true )
+ add_integer( CFG_PREFIX "y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, true )
+ add_integer_with_range( CFG_PREFIX "transparency", 255, 0, 255, NULL,
+ TRANS_TEXT, TRANS_LONGTEXT, false )
+ add_integer( CFG_PREFIX "position", -1, NULL, POS_TEXT, POS_LONGTEXT, false )
+ change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL )
+ add_integer( CFG_PREFIX "alarm", 0, NULL, ALARM_TEXT, ALARM_LONGTEXT, true )
+ add_integer( CFG_PREFIX "barWidth", 10, NULL, BARWIDTH_TEXT, BARWIDTH_LONGTEXT, true )
+
+ /* video output filter submodule */
+ add_submodule ()
+ set_capability( "video filter2", 0 )
+ set_callbacks( OpenVideo, Close )
+ set_description( N_("Audio Bar Graph Video sub filter") )
+ add_shortcut( "audiobargraph_v" )
+vlc_module_end ()
+
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Structure to hold the Bar Graph properties
+ ****************************************************************************/
+typedef struct
+{
+ int i_alpha; /* -1 means use default alpha */
+ int nbChannels;
+ int *i_values;
+ picture_t *p_pic;
+ mtime_t date;
+ int scale;
+ int alarm;
+ int barWidth;
+
+} BarGraph_t;
+
+/**
+ * Private data holder
+ */
+struct filter_sys_t
+{
+ filter_t *p_blend;
+
+ vlc_mutex_t lock;
+
+ BarGraph_t p_BarGraph;
+
+ int i_pos;
+ int i_pos_x;
+ int i_pos_y;
+ bool b_absolute;
+
+ /* On the fly control variable */
+ bool b_spu_update;
+};
+
+static const char *const ppsz_filter_options[] = {
+ "i_values", "x", "y", "transparency", "position", "alarm", "barWidth", NULL
+};
+
+static const char *const ppsz_filter_callbacks[] = {
+ "audiobargraph_v-i_values",
+ "audiobargraph_v-x",
+ "audiobargraph_v-y",
+ "audiobargraph_v-transparency",
+ "audiobargraph_v-position",
+ "audiobargraph_v-alarm",
+ "audiobargraph_v-barWidth",
+ NULL
+};
+
+static int OpenCommon( vlc_object_t *, bool b_sub );
+
+static subpicture_t *FilterSub( filter_t *, mtime_t );
+static picture_t *FilterVideo( filter_t *, picture_t * );
+
+static int BarGraphCallback( vlc_object_t *, char const *,
+ vlc_value_t, vlc_value_t, void * );
+
+static void LoadBarGraph( vlc_object_t *, BarGraph_t *);
+void parse_i_values( BarGraph_t *p_BarGraph, char *i_values);
+
+/**
+ * Open the sub filter
+ */
+static int OpenSub( vlc_object_t *p_this )
+{
+ return OpenCommon( p_this, true );
+}
+
+/**
+ * Open the video filter
+ */
+static int OpenVideo( vlc_object_t *p_this )
+{
+ return OpenCommon( p_this, false );
+}
+
+/**
+ * Common open function
+ */
+static int OpenCommon( vlc_object_t *p_this, bool b_sub )
+{
+ filter_t *p_filter = (filter_t *)p_this;
+ filter_sys_t *p_sys;
+ BarGraph_t *p_BarGraph;
+ char* i_values = NULL;
+
+ /* */
+ if( !b_sub && !es_format_IsSimilar( &p_filter->fmt_in, &p_filter->fmt_out ) )
+ {
+ msg_Err( p_filter, "Input and output format does not match" );
+ return VLC_EGENERIC;
+ }
+
+
+ /* */
+ p_filter->p_sys = p_sys = malloc( sizeof( *p_sys ) );
+ if( !p_sys )
+ return VLC_ENOMEM;
+ p_BarGraph = &(p_sys->p_BarGraph);
+
+ /* */
+ p_sys->p_blend = NULL;
+ if( !b_sub )
+ {
+
+ p_sys->p_blend = filter_NewBlend( VLC_OBJECT(p_filter),
+ &p_filter->fmt_in.video );
+ if( !p_sys->p_blend )
+ {
+ //free( p_BarGraph );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ }
+
+ /* */
+ config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
+ p_filter->p_cfg );
+
+ /* create and initialize variables */
+ p_sys->i_pos = var_CreateGetIntegerCommand( p_filter, "audiobargraph_v-position" );
+ p_sys->i_pos_x = var_CreateGetIntegerCommand( p_filter, "audiobargraph_v-x" );
+ p_sys->i_pos_y = var_CreateGetIntegerCommand( p_filter, "audiobargraph_v-y" );
+ p_BarGraph->i_alpha = var_CreateGetIntegerCommand( p_filter,
+ "audiobargraph_v-transparency" );
+ p_BarGraph->i_alpha = __MAX( __MIN( p_BarGraph->i_alpha, 255 ), 0 );
+ i_values = var_CreateGetStringCommand( p_filter, "audiobargraph_v-i_values" );
+ //p_BarGraph->nbChannels = 0;
+ //p_BarGraph->i_values = NULL;
+ parse_i_values(p_BarGraph, i_values);
+ p_BarGraph->alarm = var_CreateGetIntegerCommand( p_filter, "audiobargraph_v-alarm" );
+ p_BarGraph->barWidth = var_CreateGetIntegerCommand( p_filter, "audiobargraph_v-barWidth" );
+ p_BarGraph->scale = 400;
+
+ /* Ignore aligment if a position is given for video filter */
+ if( !b_sub && p_sys->i_pos_x >= 0 && p_sys->i_pos_y >= 0 )
+ p_sys->i_pos = 0;
+
+ vlc_mutex_init( &p_sys->lock );
+ LoadBarGraph( p_this, p_BarGraph );
+ p_sys->b_spu_update = true;
+
+ for( int i = 0; ppsz_filter_callbacks[i]; i++ )
+ var_AddCallback( p_filter, ppsz_filter_callbacks[i],
+ BarGraphCallback, p_sys );
+
+ /* Misc init */
+ if( b_sub )
+ {
+ p_filter->pf_sub_filter = FilterSub;
+ }
+ else
+ {
+ p_filter->pf_video_filter = FilterVideo;
+ }
+
+ free( i_values );
+ return VLC_SUCCESS;
+}
+
+/**
+ * Common close function
+ */
+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;
+ BarGraph_t *p_BarGraph = &(p_sys->p_BarGraph);
+
+ for( int i = 0; ppsz_filter_callbacks[i]; i++ )
+ var_DelCallback( p_filter, ppsz_filter_callbacks[i],
+ BarGraphCallback, p_sys );
+
+ if( p_sys->p_blend )
+ filter_DeleteBlend( p_sys->p_blend );
+
+ vlc_mutex_destroy( &p_sys->lock );
+
+ if( p_BarGraph->p_pic )
+ {
+ picture_Release( p_BarGraph->p_pic );
+ p_BarGraph->p_pic = NULL;
+ }
+ free( p_BarGraph->i_values );
+
+ free( p_sys );
+}
+
+/**
+ * Sub filter
+ */
+static subpicture_t *FilterSub( filter_t *p_filter, mtime_t date )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+ BarGraph_t *p_BarGraph = &(p_sys->p_BarGraph);
+
+ subpicture_t *p_spu;
+ subpicture_region_t *p_region;
+ video_format_t fmt;
+ picture_t *p_pic;
+
+ vlc_mutex_lock( &p_sys->lock );
+ /* Basic test: b_spu_update occurs on a dynamic change */
+ if( !p_sys->b_spu_update )
+ {
+ vlc_mutex_unlock( &p_sys->lock );
+ return 0;
+ }
+
+ p_pic = p_BarGraph->p_pic;
+
+ /* Allocate the subpicture internal data. */
+ p_spu = filter_NewSubpicture( p_filter );
+ if( !p_spu )
+ goto exit;
+
+ p_spu->b_absolute = p_sys->b_absolute;
+ p_spu->i_start = date;
+ p_spu->i_stop = 0;
+ p_spu->b_ephemer = true;
+
+ /* Send an empty subpicture to clear the display when needed */
+ if( !p_pic || !p_BarGraph->i_alpha )
+ goto exit;
+
+ /* Create new SPU region */
+ memset( &fmt, 0, sizeof(video_format_t) );
+ fmt.i_chroma = VLC_CODEC_YUVA;
+ fmt.i_aspect = VOUT_ASPECT_FACTOR;
+ fmt.i_sar_num = fmt.i_sar_den = 1;
+ fmt.i_width = fmt.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
+ fmt.i_height = fmt.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;
+ fmt.i_x_offset = fmt.i_y_offset = 0;
+ p_region = subpicture_region_New( &fmt );
+ if( !p_region )
+ {
+ msg_Err( p_filter, "cannot allocate SPU region" );
+ p_filter->pf_sub_buffer_del( p_filter, p_spu );
+ p_spu = NULL;
+ goto exit;
+ }
+
+ /* */
+ picture_Copy( p_region->p_picture, p_pic );
+
+ /* where to locate the bar graph: */
+ if( p_sys->i_pos < 0 )
+ { /* set to an absolute xy */
+ p_region->i_align = OSD_ALIGN_RIGHT | OSD_ALIGN_TOP;
+ p_spu->b_absolute = true;
+ }
+ else
+ { /* set to one of the 9 relative locations */
+ p_region->i_align = p_sys->i_pos;
+ p_spu->b_absolute = false;
+ }
+
+ p_region->i_x = p_sys->i_pos_x;
+ p_region->i_y = p_sys->i_pos_y;
+
+ p_spu->p_region = p_region;
+
+ p_spu->i_alpha = p_BarGraph->i_alpha ;
+
+exit:
+ vlc_mutex_unlock( &p_sys->lock );
+
+ return p_spu;
+}
+
+/**
+ * Video filter
+ */
+static picture_t *FilterVideo( filter_t *p_filter, picture_t *p_src )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+ BarGraph_t *p_BarGraph = &(p_sys->p_BarGraph);
+
+ picture_t *p_dst = filter_NewPicture( p_filter );
+ if( !p_dst )
+ goto exit;
+
+ picture_Copy( p_dst, p_src );
+
+ /* */
+ vlc_mutex_lock( &p_sys->lock );
+
+ /* */
+ const picture_t *p_pic = p_BarGraph->p_pic;
+ if( p_pic )
+ {
+ const video_format_t *p_fmt = &p_pic->format;
+ const int i_dst_w = p_filter->fmt_out.video.i_visible_width;
+ const int i_dst_h = p_filter->fmt_out.video.i_visible_height;
+
+ if( p_sys->i_pos )
+ {
+ if( p_sys->i_pos & SUBPICTURE_ALIGN_BOTTOM )
+ {
+ p_sys->i_pos_y = i_dst_h - p_fmt->i_visible_height;
+ }
+ else if ( !(p_sys->i_pos & SUBPICTURE_ALIGN_TOP) )
+ {
+ p_sys->i_pos_y = ( i_dst_h - p_fmt->i_visible_height ) / 2;
+ }
+ else
+ {
+ p_sys->i_pos_y = 0;
+ }
+
+ if( p_sys->i_pos & SUBPICTURE_ALIGN_RIGHT )
+ {
+ p_sys->i_pos_x = i_dst_w - p_fmt->i_visible_width;
+ }
+ else if ( !(p_sys->i_pos & SUBPICTURE_ALIGN_LEFT) )
+ {
+ p_sys->i_pos_x = ( i_dst_w - p_fmt->i_visible_width ) / 2;
+ }
+ else
+ {
+ p_sys->i_pos_x = 0;
+ }
+ }
+
+ /* */
+ const int i_alpha = p_BarGraph->i_alpha;
+ if( filter_ConfigureBlend( p_sys->p_blend, i_dst_w, i_dst_h, p_fmt ) ||
+ filter_Blend( p_sys->p_blend, p_dst, p_sys->i_pos_x, p_sys->i_pos_y,
+ p_pic, i_alpha ) )
+ {
+ msg_Err( p_filter, "failed to blend a picture" );
+ }
+ }
+ vlc_mutex_unlock( &p_sys->lock );
+
+exit:
+ picture_Release( p_src );
+ return p_dst;
+}
+
+/*****************************************************************************
+ * Callback to update params on the fly
+ *****************************************************************************/
+static int BarGraphCallback( vlc_object_t *p_this, char const *psz_var,
+ vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+ VLC_UNUSED(oldval);
+ filter_sys_t *p_sys = (filter_sys_t *)p_data;
+ BarGraph_t *p_BarGraph = &(p_sys->p_BarGraph);
+ char* i_values;
+ char* res = NULL;
+
+ vlc_mutex_lock( &p_sys->lock );
+ if ( !strcmp( psz_var, "audiobargraph_v-x" ) )
+ {
+ p_sys->i_pos_x = newval.i_int;
+ }
+ else if ( !strcmp( psz_var, "audiobargraph_v-y" ) )
+ {
+ p_sys->i_pos_y = newval.i_int;
+ }
+ else if ( !strcmp( psz_var, "audiobargraph_v-position" ) )
+ {
+ p_sys->i_pos = newval.i_int;
+ }
+ else if ( !strcmp( psz_var, "audiobargraph_v-transparency" ) )
+ {
+ p_BarGraph->i_alpha = __MAX( __MIN( newval.i_int, 255 ), 0 );
+ }
+ else if ( !strcmp( psz_var, "audiobargraph_v-i_values" ) )
+ {
+ if( p_BarGraph->p_pic )
+ {
+ picture_Release( p_BarGraph->p_pic );
+ p_BarGraph->p_pic = NULL;
+ }
+ i_values = strdup( newval.psz_string );
+ free(p_BarGraph->i_values);
+ //p_BarGraph->i_values = NULL;
+ //p_BarGraph->nbChannels = 0;
+ // in case many answer are received at the same time, only keep one
+ res = strchr(i_values, '@');
+ if (res)
+ *res = 0;
+ parse_i_values( p_BarGraph, i_values);
+ LoadBarGraph(p_this,p_BarGraph);
+ }
+ else if ( !strcmp( psz_var, "audiobargraph_v-alarm" ) )
+ {
+ if( p_BarGraph->p_pic )
+ {
+ picture_Release( p_BarGraph->p_pic );
+ p_BarGraph->p_pic = NULL;
+ }
+ p_BarGraph->alarm = newval.i_int;
+ LoadBarGraph(p_this,p_BarGraph);
+ }
+ else if ( !strcmp( psz_var, "audiobargraph_v-barWidth" ) )
+ {
+ if( p_BarGraph->p_pic )
+ {
+ picture_Release( p_BarGraph->p_pic );
+ p_BarGraph->p_pic = NULL;
+ }
+ p_BarGraph->barWidth = newval.i_int;
+ LoadBarGraph(p_this,p_BarGraph);
+ }
+ p_sys->b_spu_update = true;
+ vlc_mutex_unlock( &p_sys->lock );
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * LoadImage: creates and returns the bar graph image
+ *****************************************************************************/
+static picture_t *LoadImage( vlc_object_t *p_this, int nbChannels, int* i_values, int scale, int alarm, int barWidth)
+{
+ VLC_UNUSED(p_this);
+ picture_t *p_pic;
+ int i,j;
+ int i_width = 0;
+ int i_line;
+ int moinsTrois, moinsCinq, moinsSept, moinsDix, moinsVingt;
+
+ if (nbChannels == 0) {
+ i_width = 20;
+ } else {
+ i_width = 2 * nbChannels * barWidth + 10;
+ }
+
+ moinsTrois = 0.71*scale + 20;
+ moinsCinq = 0.56*scale + 20;
+ moinsSept = 0.45*scale + 20;
+ moinsDix = 0.32*scale + 20;
+ moinsVingt = 0.1*scale + 20;
+
+ p_pic = picture_New(VLC_FOURCC('Y','U','V','A'), i_width+20, scale+30, VOUT_ASPECT_FACTOR * (i_width+20)/(scale+30));
+
+ // blacken the whole picture
+ for( i = 0 ; i < p_pic->i_planes ; i++ )
+ {
+ memset( p_pic->p[i].p_pixels, 0x00,
+ p_pic->p[i].i_visible_lines * p_pic->p[i].i_pitch );
+ }
+
+ // side bar
+ for ( i_line = 20; i_line < scale+20; i_line++ ) {
+
+#define DrawPointsBlack(a,b) {\
+ for (i=a; i<b; i++) {\
+ *(p_pic->p[0].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[0].i_pitch + i ) = 0x00; \
+ *(p_pic->p[1].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[1].i_pitch + i ) = 128; \
+ *(p_pic->p[2].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[2].i_pitch + i ) = 128; \
+ *(p_pic->p[3].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[3].i_pitch + i ) = 0xFF; \
+ }\
+ }
+#define DrawPointsWhite(a,b) {\
+ for (i=a; i<b; i++) {\
+ *(p_pic->p[0].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[0].i_pitch + i ) = 0xFF;\
+ *(p_pic->p[1].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[1].i_pitch + i ) = 128;\
+ *(p_pic->p[2].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[2].i_pitch + i ) = 128;\
+ *(p_pic->p[3].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[3].i_pitch + i ) = 0xFF; \
+ }\
+ }
+
+ // vertical line
+ DrawPointsBlack(20,22);
+ DrawPointsWhite(22,24);
+
+ // -3dB
+ if (i_line == moinsTrois - 2) {
+ // 3
+ DrawPointsBlack(16,19);
+ }
+ if (i_line == moinsTrois - 1) {
+ // 3
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsWhite(24,27);
+ }
+ if (i_line == moinsTrois) {
+ // 3
+ DrawPointsBlack(16,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsTrois + 1) {
+ // 3
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsTrois + 2) {
+ // 3
+ DrawPointsBlack(16,19);
+ }
+
+ // -5dB
+ if (i_line == moinsCinq - 2) {
+ // 5
+ DrawPointsBlack(16,19);
+ }
+ if (i_line == moinsCinq - 1) {
+ // 5
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsWhite(24,27);
+ }
+ if (i_line == moinsCinq) {
+ // 5
+ DrawPointsBlack(16,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsCinq + 1) {
+ // 5
+ DrawPointsBlack(16,17);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsCinq + 2) {
+ // 5
+ DrawPointsBlack(16,19);
+ }
+
+ // -7dB
+ if (i_line == moinsSept - 2) {
+ // 7
+ DrawPointsBlack(18,19);
+ }
+ if (i_line == moinsSept - 1) {
+ // 7
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsWhite(24,27);
+ }
+ if (i_line == moinsSept) {
+ // 7
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsSept + 1) {
+ // 7
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsSept + 2) {
+ // 7
+ DrawPointsBlack(16,19);
+ }
+
+
+ // -10dB
+ if (i_line == moinsDix - 2) {
+ // 1
+ DrawPointsBlack(14,15);
+ // 0
+ DrawPointsBlack(16,19);
+ }
+ if (i_line == moinsDix - 1) {
+ // 1
+ DrawPointsBlack(14,15);
+ // 0
+ DrawPointsBlack(16,17);
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsWhite(24,27);
+ }
+ if (i_line == moinsDix) {
+ // 1
+ DrawPointsBlack(14,15);
+ // 0
+ DrawPointsBlack(16,17);
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsDix + 1) {
+ // 1
+ DrawPointsBlack(14,15);
+ // 0
+ DrawPointsBlack(16,17);
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsDix + 2) {
+ // 1
+ DrawPointsBlack(14,15);
+ // 0
+ DrawPointsBlack(16,19);
+ }
+
+ // -20dB
+ if (i_line == moinsVingt - 2) {
+ // 2
+ DrawPointsBlack(12,15);
+ // 0
+ DrawPointsBlack(16,19);
+ }
+ if (i_line == moinsVingt - 1) {
+ // 2
+ DrawPointsBlack(12,13);
+ // 0
+ DrawPointsBlack(16,17);
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsWhite(24,27);
+ }
+ if (i_line == moinsVingt) {
+ // 2
+ DrawPointsBlack(12,15);
+ // 0
+ DrawPointsBlack(16,17);
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsVingt + 1) {
+ // 2
+ DrawPointsBlack(14,15);
+ // 0
+ DrawPointsBlack(16,17);
+ DrawPointsBlack(18,19);
+ // limit
+ DrawPointsBlack(24,27);
+ }
+ if (i_line == moinsVingt + 2) {
+ // 2
+ DrawPointsBlack(12,15);
+ // 0
+ DrawPointsBlack(16,19);
+ }
+
+
+ }
+
+ // draw the bars and channel indicators
+ for (i=0; i<nbChannels; i++) {
+ for( j = barWidth+20 ; j < 2*barWidth+20; j++)
+ {
+ // channel indicators
+ for ( i_line = 12; i_line < 18; i_line++ ) {
+ // white
+ *(p_pic->p[0].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[0].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 255;
+ *(p_pic->p[1].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[1].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 128;
+ *(p_pic->p[2].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[2].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 128;
+ *(p_pic->p[3].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[3].i_pitch +
+ ( (2*i*barWidth)+j )) = 0xFF;
+ }
+ // bars
+ for( i_line = 20; i_line < i_values[i]+20; i_line++ )
+ {
+ if (i_line < moinsDix) { // green if < -10 dB
+ *(p_pic->p[0].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[0].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 150;
+ *(p_pic->p[1].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[1].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 44;
+ *(p_pic->p[2].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[2].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 21;
+ *(p_pic->p[3].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[3].i_pitch +
+ ( (2*i*barWidth)+j )) = 0xFF;
+ } else if (i_line < moinsTrois) { // yellow if > -10dB and < -3dB
+ *(p_pic->p[0].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[0].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 226;
+ *(p_pic->p[1].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[1].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 1;
+ *(p_pic->p[2].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[2].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 148;
+ *(p_pic->p[3].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[3].i_pitch +
+ ( (2*i*barWidth)+j )) = 0xFF;
+ } else { // red if > -3 dB
+ *(p_pic->p[0].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[0].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 76;
+ *(p_pic->p[1].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[1].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 85;
+ *(p_pic->p[2].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[2].i_pitch +
+ ( (2*i*barWidth)+j ) ) = 0xFF;
+ *(p_pic->p[3].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[3].i_pitch +
+ ( (2*i*barWidth)+j )) = 0xFF;
+ }
+ }
+ }
+ }
+
+
+
+ if (alarm) {// draw the alarm square
+ // bottom
+ for ( i_line = 0; i_line < 10; i_line++ ) {
+ for (i=0; i<i_width+20; i++) {
+ *(p_pic->p[0].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[0].i_pitch + i ) = 76;
+ *(p_pic->p[1].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[1].i_pitch + i ) = 85;
+ *(p_pic->p[2].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[2].i_pitch + i ) = 0xFF;
+ *(p_pic->p[3].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[3].i_pitch + i ) = 0xFF;
+ }
+ }
+ // top
+ for ( i_line = scale+21; i_line < scale+30; i_line++ ) {
+ for (i=0; i<i_width+20; i++) {
+ *(p_pic->p[0].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[0].i_pitch + i ) = 76;
+ *(p_pic->p[1].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[1].i_pitch + i ) = 85;
+ *(p_pic->p[2].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[2].i_pitch + i ) = 0xFF;
+ *(p_pic->p[3].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[3].i_pitch + i ) = 0xFF;
+ }
+ }
+ // sides
+ for ( i_line = 9; i_line < scale+21; i_line++ ) {
+ for (i=0; i<10; i++) {
+ *(p_pic->p[0].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[0].i_pitch + i ) = 76;
+ *(p_pic->p[1].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[1].i_pitch + i ) = 85;
+ *(p_pic->p[2].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[2].i_pitch + i ) = 0xFF;
+ *(p_pic->p[3].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[3].i_pitch + i ) = 0xFF;
+ }
+ for (i=i_width+11; i<i_width+20; i++) {
+ *(p_pic->p[0].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[0].i_pitch + i ) = 76;
+ *(p_pic->p[1].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[1].i_pitch + i ) = 85;
+ *(p_pic->p[2].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[2].i_pitch + i ) = 0xFF;
+ *(p_pic->p[3].p_pixels +
+ (scale + 30 - i_line - 1) *
+ p_pic->p[3].i_pitch + i ) = 0xFF;
+ }
+ }
+ }
+
+
+ return p_pic;
+}
+
+/*****************************************************************************
+ * LoadBarGraph: loads the BarGraph images into memory
+ *****************************************************************************/
+static void LoadBarGraph( vlc_object_t *p_this, BarGraph_t *p_BarGraph )
+{
+
+ p_BarGraph->p_pic = LoadImage( p_this, p_BarGraph->nbChannels, p_BarGraph->i_values, p_BarGraph->scale, p_BarGraph->alarm, p_BarGraph->barWidth);
+ if( !p_BarGraph->p_pic )
+ {
+ msg_Warn( p_this, "error while creating picture" );
+ }
+
+}
+
+/*****************************************************************************
+ * parse_i_values : parse i_values parameter and store the corresponding values
+ *****************************************************************************/
+void parse_i_values( BarGraph_t *p_BarGraph, char *i_values)
+{
+ char* res = NULL;
+ char delim[] = ":";
+ char* tok;
+
+ p_BarGraph->nbChannels = 0;
+ p_BarGraph->i_values = NULL;
+ res = strtok_r(i_values, delim, &tok);
+ while (res != NULL) {
+ p_BarGraph->nbChannels++;
+ p_BarGraph->i_values = (int*)realloc(p_BarGraph->i_values, p_BarGraph->nbChannels*sizeof(int));
+ p_BarGraph->i_values[p_BarGraph->nbChannels-1] = __MAX( __MIN( atof(res)*p_BarGraph->scale, p_BarGraph->scale ), 0 );
+ res = strtok_r(NULL, delim, &tok);
+ }
+
+}
projects / vlc / commitdiff