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| author | Thomas Vander Stichele <thomas@apestaart.org> | 2003-09-26 16:45:04 +0000 |
|---|---|---|
| committer | Thomas Vander Stichele <thomas@apestaart.org> | 2003-09-26 16:45:04 +0000 |
| commit | 3ab75a571e204fbe6981c94d28cebb776124251b (patch) | |
| tree | c3e50f08f81ca97109762a64cf73837fc6f7598c /gst/level/gstlevel.c | |
| parent | 46860a7c533203cc3db68afff2936f039833cfde (diff) | |
added second example with plotting fixed some aesthetics
Original commit message from CVS:
added second example with plotting
fixed some aesthetics
Diffstat (limited to 'gst/level/gstlevel.c')
| -rw-r--r-- | gst/level/gstlevel.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/gst/level/gstlevel.c b/gst/level/gstlevel.c index 2b73e479..ca33743f 100644 --- a/gst/level/gstlevel.c +++ b/gst/level/gstlevel.c @@ -214,7 +214,7 @@ gst_level_chain (GstPad *pad, GstBuffer *buf) for (i = 0; i < filter->channels; ++i) filter->CS[i] = filter->peak[i] = filter->MS[i] = filter->RMS_dB[i] = 0.0; - in_data = (gint16 *) GST_BUFFER_DATA(buf); + in_data = (gint16 *) GST_BUFFER_DATA (buf); num_samples = GST_BUFFER_SIZE (buf) / (filter->width / 8); if (num_samples % filter->channels != 0) @@ -288,14 +288,18 @@ gst_level_chain (GstPad *pad, GstBuffer *buf) { if (filter->signal) { - gdouble RMS, peak; + gdouble RMS, peak, endtime; for (i = 0; i < filter->channels; ++i) { RMS = sqrt (filter->CS[i] / (filter->num_samples / filter->channels)); peak = filter->last_peak[i]; + num_samples = GST_BUFFER_SIZE (buf) / (filter->width / 8); + endtime = (double) GST_BUFFER_TIMESTAMP (buf) / GST_SECOND + + (double) num_samples / (double) filter->rate; g_signal_emit (G_OBJECT (filter), gst_filter_signals[SIGNAL_LEVEL], 0, - i, 20 * log10 (RMS), 20 * log10 (filter->last_peak[i]), + endtime, i, + 20 * log10 (RMS), 20 * log10 (filter->last_peak[i]), 20 * log10 (filter->decay_peak[i])); /* we emitted, so reset cumulative and normal peak */ filter->CS[i] = 0.0; @@ -397,9 +401,10 @@ gst_level_class_init (GstLevelClass *klass) gst_filter_signals[SIGNAL_LEVEL] = g_signal_new ("level", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstLevelClass, level), NULL, NULL, - gstlevel_cclosure_marshal_VOID__INT_DOUBLE_DOUBLE_DOUBLE, - G_TYPE_NONE, 4, - G_TYPE_INT, G_TYPE_DOUBLE, G_TYPE_DOUBLE, G_TYPE_DOUBLE); + gstlevel_cclosure_marshal_VOID__DOUBLE_INT_DOUBLE_DOUBLE_DOUBLE, + G_TYPE_NONE, 5, + G_TYPE_DOUBLE, G_TYPE_INT, + G_TYPE_DOUBLE, G_TYPE_DOUBLE, G_TYPE_DOUBLE); } static void |