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vlc-2-2
Commit 680ef533 authored by Rafaël Carré's avatar Rafaël Carré
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audiobargraph_v: reorder

parent 5168254b
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Showing with 444 additions and 457 deletions
modules/video_filter/audiobargraph_v.c
View file @ 680ef533
......@@ -155,386 +155,53 @@ static const char *const ppsz_filter_callbacks[] = {
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);
static float iec_scale(float dB);
/**
* Open the sub source
*/
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_BarGraph->p_pic = NULL;
/* */
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 = VLC_CLIP( p_BarGraph->i_alpha, 0, 255 );
//p_BarGraph->nbChannels = 0;
//p_BarGraph->i_values = NULL;
parse_i_values(p_BarGraph, &(char){ 0 });
p_BarGraph->alarm = false;
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 );
var_Create(p_filter->p_libvlc, "audiobargraph_v-alarm", VLC_VAR_BOOL);
var_Create(p_filter->p_libvlc, "audiobargraph_v-i_values", VLC_VAR_STRING);
var_AddCallback(p_filter->p_libvlc, "audiobargraph_v-alarm",
BarGraphCallback, p_sys);
var_AddCallback(p_filter->p_libvlc, "audiobargraph_v-i_values",
BarGraphCallback, p_sys);
var_TriggerCallback(p_filter->p_libvlc, "audiobargraph_v-alarm");
var_TriggerCallback(p_filter->p_libvlc, "audiobargraph_v-i_values");
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_source = 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 );
var_DelCallback(p_filter->p_libvlc, "audiobargraph_v-i_values",
BarGraphCallback, p_sys);
var_DelCallback(p_filter->p_libvlc, "audiobargraph_v-alarm",
BarGraphCallback, p_sys);
var_Destroy(p_filter->p_libvlc, "audiobargraph_v-i_values");
var_Destroy(p_filter->p_libvlc, "audiobargraph_v-alarm");
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 source
*/
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_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 = SUBPICTURE_ALIGN_RIGHT | SUBPICTURE_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
* IEC 268-18 Source: meterbridge
*****************************************************************************/
static int BarGraphCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
static float iec_scale(float dB)
{
VLC_UNUSED(oldval);
filter_sys_t *p_sys = (filter_sys_t *)p_data;
BarGraph_t *p_BarGraph = &(p_sys->p_BarGraph);
char* res = NULL;
float fScale = 1.0f;
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 = VLC_CLIP( newval.i_int, 0, 255 );
}
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;
}
if (dB < -70.0f)
fScale = 0.0f;
else if (dB < -60.0f)
fScale = (dB + 70.0f) * 0.0025f;
else if (dB < -50.0f)
fScale = (dB + 60.0f) * 0.005f + 0.025f;
else if (dB < -40.0)
fScale = (dB + 50.0f) * 0.0075f + 0.075f;
else if (dB < -30.0f)
fScale = (dB + 40.0f) * 0.015f + 0.15f;
else if (dB < -20.0f)
fScale = (dB + 30.0f) * 0.02f + 0.3f;
else if (dB < -0.001f || dB > 0.001f) /* if (dB < 0.0f) */
fScale = (dB + 20.0f) * 0.025f + 0.5f;
char *psz = xstrdup( newval.psz_string ? 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(psz, '@');
if (res)
*res = 0;
parse_i_values( p_BarGraph, psz);
free( psz );
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.b_bool;
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);
return fScale;
}
/*****************************************************************************
* parse_i_values : parse i_values parameter and store the corresponding values
*****************************************************************************/
static void parse_i_values( BarGraph_t *p_BarGraph, char *i_values)
{
char* res = NULL;
char delim[] = ":";
char* tok;
float db;
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 = xrealloc(p_BarGraph->i_values,
p_BarGraph->nbChannels*sizeof(int));
db = log10(atof(res)) * 20;
p_BarGraph->i_values[p_BarGraph->nbChannels-1] = VLC_CLIP( iec_scale(db)*p_BarGraph->scale, 0, p_BarGraph->scale );
res = strtok_r(NULL, delim, &tok);
}
p_sys->b_spu_update = true;
vlc_mutex_unlock( &p_sys->lock );
return VLC_SUCCESS;
}
/*****************************************************************************
......@@ -846,115 +513,435 @@ static picture_t *LoadImage( vlc_object_t *p_this, int nbChannels, int* i_values
*(p_pic->p[3].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[3].i_pitch + offset ) = a;
// draw the bars and channel indicators
for (i=0; i<nbChannels; i++) {
pi = 25 + ((i+1)*5) + (i*barWidth) ; // 25 separació amb indicador, 5 separació entre barres
// draw the bars and channel indicators
for (i=0; i<nbChannels; i++) {
pi = 25 + ((i+1)*5) + (i*barWidth) ; // 25 separació amb indicador, 5 separació entre barres
for( j = pi; j < pi + barWidth; j++)
{
// channel indicators
for ( i_line = 12; i_line < 20; i_line++ ) {
if( alarm ) {
drawPoint(j,76,85,0xFF,0xFF); // red
}
else {
drawPoint(j,0,128,128,0xFF); // black DrawLine(pi,pf,0xFF,128,128,0xFF);
}
}
// bars
for( i_line = 20; i_line < i_values[i]+20; i_line++ )
{
if (i_line < minus18) { // green if < -18 dB
drawPoint(j,150,44,21,0xFF);
//DrawLine(pi,pf,150,44,21,0xFF);
} else if (i_line < minus8) { // yellow if > -18dB and < -8dB
drawPoint(j,226,1,148,0xFF);
//DrawLine(pi,pf,226,1,148,0xFF);
} else { // red if > -8 dB
drawPoint(j,76,85,0xFF,0xFF);
//DrawLine(pi,pf,76,85,255,0xFF);
}
}
// bars no signal
for( ; i_line < scale+20; i_line++ )
{
if (i_line < minus18) { // green if < -18 dB
drawPoint(j,74,85,74,0xFF);
//DrawLine(pi,pf,74,85,74,0xFF);
} else if (i_line < minus8) { // yellow if > -18dB and < -8dB
drawPoint(j,112,64,138,0xFF);
//DrawLine(pi,pf,112,64,138,0xFF);
} else { // red if > -8 dB
drawPoint(j,37,106,191,0xFF);
//DrawLine(pi,pf,37,106,191,0xFF);
}
}
}
}
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" );
}
}
/*****************************************************************************
* 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* 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 = VLC_CLIP( newval.i_int, 0, 255 );
}
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;
}
char *psz = xstrdup( newval.psz_string ? 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(psz, '@');
if (res)
*res = 0;
parse_i_values( p_BarGraph, psz);
free( psz );
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.b_bool;
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;
}
/**
* Sub source
*/
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_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 = SUBPICTURE_ALIGN_RIGHT | SUBPICTURE_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 );
for( j = pi; j < pi + barWidth; j++)
/* */
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 )
{
// channel indicators
for ( i_line = 12; i_line < 20; i_line++ ) {
if( alarm ) {
drawPoint(j,76,85,0xFF,0xFF); // red
}
else {
drawPoint(j,0,128,128,0xFF); // black DrawLine(pi,pf,0xFF,128,128,0xFF);
}
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;
}
// bars
for( i_line = 20; i_line < i_values[i]+20; i_line++ )
if( p_sys->i_pos & SUBPICTURE_ALIGN_RIGHT )
{
if (i_line < minus18) { // green if < -18 dB
drawPoint(j,150,44,21,0xFF);
//DrawLine(pi,pf,150,44,21,0xFF);
} else if (i_line < minus8) { // yellow if > -18dB and < -8dB
drawPoint(j,226,1,148,0xFF);
//DrawLine(pi,pf,226,1,148,0xFF);
} else { // red if > -8 dB
drawPoint(j,76,85,0xFF,0xFF);
//DrawLine(pi,pf,76,85,255,0xFF);
}
p_sys->i_pos_x = i_dst_w - p_fmt->i_visible_width;
}
// bars no signal
for( ; i_line < scale+20; i_line++ )
else if ( !(p_sys->i_pos & SUBPICTURE_ALIGN_LEFT) )
{
if (i_line < minus18) { // green if < -18 dB
drawPoint(j,74,85,74,0xFF);
//DrawLine(pi,pf,74,85,74,0xFF);
} else if (i_line < minus8) { // yellow if > -18dB and < -8dB
drawPoint(j,112,64,138,0xFF);
//DrawLine(pi,pf,112,64,138,0xFF);
} else { // red if > -8 dB
drawPoint(j,37,106,191,0xFF);
//DrawLine(pi,pf,37,106,191,0xFF);
}
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 );
return p_pic;
exit:
picture_Release( p_src );
return p_dst;
}
/*****************************************************************************
* LoadBarGraph: loads the BarGraph images into memory
*****************************************************************************/
static void LoadBarGraph( vlc_object_t *p_this, BarGraph_t *p_BarGraph )
/**
* 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;
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 )
/* */
if( !b_sub && !es_format_IsSimilar( &p_filter->fmt_in, &p_filter->fmt_out ) )
{
msg_Warn( p_this, "error while creating picture" );
msg_Err( p_filter, "Input and output format does not match" );
return VLC_EGENERIC;
}
}
/*****************************************************************************
* 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;
float db;
/* */
p_filter->p_sys = p_sys = malloc( sizeof( *p_sys ) );
if( !p_sys )
return VLC_ENOMEM;
p_BarGraph = &(p_sys->p_BarGraph);
p_BarGraph->p_pic = NULL;
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 = xrealloc(p_BarGraph->i_values,
p_BarGraph->nbChannels*sizeof(int));
db = log10(atof(res)) * 20;
p_BarGraph->i_values[p_BarGraph->nbChannels-1] = VLC_CLIP( iec_scale(db)*p_BarGraph->scale, 0, p_BarGraph->scale );
res = strtok_r(NULL, delim, &tok);
/* */
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 = VLC_CLIP( p_BarGraph->i_alpha, 0, 255 );
//p_BarGraph->nbChannels = 0;
//p_BarGraph->i_values = NULL;
parse_i_values(p_BarGraph, &(char){ 0 });
p_BarGraph->alarm = false;
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 );
var_Create(p_filter->p_libvlc, "audiobargraph_v-alarm", VLC_VAR_BOOL);
var_Create(p_filter->p_libvlc, "audiobargraph_v-i_values", VLC_VAR_STRING);
var_AddCallback(p_filter->p_libvlc, "audiobargraph_v-alarm",
BarGraphCallback, p_sys);
var_AddCallback(p_filter->p_libvlc, "audiobargraph_v-i_values",
BarGraphCallback, p_sys);
var_TriggerCallback(p_filter->p_libvlc, "audiobargraph_v-alarm");
var_TriggerCallback(p_filter->p_libvlc, "audiobargraph_v-i_values");
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_source = FilterSub;
}
else
{
p_filter->pf_video_filter = FilterVideo;
}
free( i_values );
return VLC_SUCCESS;
}
/*****************************************************************************
* IEC 268-18 Source: meterbridge
*****************************************************************************/
static float iec_scale(float dB)
/**
* Open the sub source
*/
static int OpenSub( vlc_object_t *p_this )
{
float fScale = 1.0f;
return OpenCommon( p_this, true );
}
if (dB < -70.0f)
fScale = 0.0f;
else if (dB < -60.0f)
fScale = (dB + 70.0f) * 0.0025f;
else if (dB < -50.0f)
fScale = (dB + 60.0f) * 0.005f + 0.025f;
else if (dB < -40.0)
fScale = (dB + 50.0f) * 0.0075f + 0.075f;
else if (dB < -30.0f)
fScale = (dB + 40.0f) * 0.015f + 0.15f;
else if (dB < -20.0f)
fScale = (dB + 30.0f) * 0.02f + 0.3f;
else if (dB < -0.001f || dB > 0.001f) /* if (dB < 0.0f) */
fScale = (dB + 20.0f) * 0.025f + 0.5f;
/**
* Open the video filter
*/
static int OpenVideo( vlc_object_t *p_this )
{
return OpenCommon( p_this, false );
}
return fScale;
/**
* 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 );
var_DelCallback(p_filter->p_libvlc, "audiobargraph_v-i_values",
BarGraphCallback, p_sys);
var_DelCallback(p_filter->p_libvlc, "audiobargraph_v-alarm",
BarGraphCallback, p_sys);
var_Destroy(p_filter->p_libvlc, "audiobargraph_v-i_values");
var_Destroy(p_filter->p_libvlc, "audiobargraph_v-alarm");
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 );
}
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