Commit 22634413 authored by Clément Stenac's avatar Clément Stenac

RRD output (Refs:#473)

This is a quick hack, which should in the end be merged in a way to expose stats
parent 1ab90751
# First, create the RRD file
rrdtool create vlc.rrd --step 1 "DS:in:GAUGE:10:0:30000" "DS:demux:GAUGE:10:0:30000" "DS:out:GAUGE:10:0:30000" "RRA:AVERAGE:0,5:1:86400"
# Start "listening" the RRD file
tail -f rrd |while read in;do;echo $in;rrdtool update vlc.rrd `echo $in`;done
# Start vlc
vlc normal_vlc_stuff --extraintf logger --rrd-file rrd
# Graph the last 5 minutes (300 seconds)
rrdtool graph vlc.png --start -300 "DEF:inp=vlc.rrd:in:AVERAGE" "DEF:dem=vlc.rrd:demux:AVERAGE" "DEF:out=vlc.rrd:out:AVERAGE" "LINE2:dem#00FF00:Demux bitrate" "LINE2:inp#0000FF:Input bitrate" "LINE2:out#FF0000:Output bitrate"
......@@ -77,6 +77,8 @@
struct intf_sys_t
{
int i_mode;
FILE *p_rrd;
mtime_t last_update;
FILE * p_file; /* The log file */
msg_subscription_t *p_sub;
......@@ -96,6 +98,8 @@ static void HtmlPrint ( const msg_item_t *, FILE * );
static void SyslogPrint ( const msg_item_t *);
#endif
static void DoRRD( intf_thread_t *p_intf );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
......@@ -127,6 +131,9 @@ vlc_module_begin();
VLC_FALSE );
change_string_list( mode_list, mode_list_text, 0 );
add_string( "rrd-file", NULL, NULL, N_("RRD output file") ,
N_("Output data for RRDTool in this file" ), VLC_TRUE );
set_capability( "interface", 0 );
set_callbacks( Open, Close );
vlc_module_end();
......@@ -137,7 +144,7 @@ vlc_module_end();
static int Open( vlc_object_t *p_this )
{
intf_thread_t *p_intf = (intf_thread_t *)p_this;
char *psz_mode, *psz_file;
char *psz_mode, *psz_file, *psz_rrd_file;
CONSOLE_INTRO_MSG;
msg_Info( p_intf, "Using logger..." );
......@@ -261,6 +268,15 @@ static int Open( vlc_object_t *p_this )
#endif
}
p_intf->p_sys->last_update = 0;
p_intf->p_sys->p_rrd = NULL;
psz_rrd_file = config_GetPsz( p_intf, "rrd-file" );
if( psz_rrd_file && *psz_rrd_file )
{
p_intf->p_sys->p_rrd = fopen( psz_rrd_file, "w" );
}
p_intf->p_sys->p_sub = msg_Subscribe( p_intf , MSG_QUEUE_NORMAL );
p_intf->pf_run = Run;
......@@ -316,6 +332,9 @@ static void Run( intf_thread_t *p_intf )
FlushQueue( p_intf->p_sys->p_sub, p_intf->p_sys->p_file,
p_intf->p_sys->i_mode );
if( p_intf->p_sys->p_rrd )
DoRRD( p_intf );
msleep( INTF_IDLE_SLEEP );
}
}
......@@ -400,3 +419,24 @@ static void HtmlPrint( const msg_item_t *p_msg, FILE *p_file )
LOG_STRING( "</font>\n", p_file );
}
static void DoRRD( intf_thread_t *p_intf )
{
playlist_t *p_playlist;
float f_input_bitrate;
if( mdate() - p_intf->p_sys->last_update < 1000000 )
return;
p_intf->p_sys->last_update = mdate();
p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
FIND_ANYWHERE );
if( p_playlist && p_playlist->p_stats )
{
fprintf( p_intf->p_sys->p_rrd, I64Fi":%f:%f:%f\n",
p_intf->p_sys->last_update/1000000,
(float)(p_playlist->p_stats->f_input_bitrate)*1000,
(float)(p_playlist->p_stats->f_demux_bitrate)*1000,
(float)(p_playlist->p_stats->f_output_bitrate)*1000 );
fflush( p_intf->p_sys->p_rrd );
vlc_object_release( p_playlist );
}
}
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