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audiorate: add skip-to-first property

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API: GstAudioRate::skip-to-first
This commit is contained in:
Mark Nauwelaerts 2011-02-21 12:40:36 +01:00
parent bb0dc56114
commit d17c4c28d5
2 changed files with 31 additions and 1 deletions
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31
gst/audiorate/gstaudiorate.c
View file

@ -78,6 +78,7 @@ enum
#define DEFAULT_SILENT TRUE
#define DEFAULT_TOLERANCE 0
#define DEFAULT_SKIP_TO_FIRST FALSE
enum
{
@ -88,7 +89,7 @@ enum
ARG_DROP,
ARG_SILENT,
ARG_TOLERANCE,
/* FILL ME */
ARG_SKIP_TO_FIRST
};
static GstStaticPadTemplate gst_audio_rate_src_template =
@ -212,6 +213,18 @@ gst_audio_rate_class_init (GstAudioRateClass * klass)
0, G_MAXUINT64, DEFAULT_TOLERANCE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstAudioRate:skip-to-first:
*
* Don't produce buffers before the first one we receive.
*
* Since: 0.10.33
**/
g_object_class_install_property (object_class, ARG_SKIP_TO_FIRST,
g_param_spec_boolean ("skip-to-first", "Skip to first buffer",
"Don't produce buffers before the first one we receive",
DEFAULT_SKIP_TO_FIRST, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
element_class->change_state = gst_audio_rate_change_state;
}
@ -556,6 +569,16 @@ gst_audio_rate_chain (GstPad * pad, GstBuffer * buf)
audiorate->next_offset = pos;
audiorate->next_ts = gst_util_uint64_scale_int (audiorate->next_offset,
GST_SECOND, audiorate->rate);
if (audiorate->skip_to_first && GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
GST_DEBUG_OBJECT (audiorate, "but skipping to first buffer instead");
pos = gst_util_uint64_scale_int (GST_BUFFER_TIMESTAMP (buf),
audiorate->rate, GST_SECOND);
GST_DEBUG_OBJECT (audiorate, "so resync to offset %" G_GINT64_FORMAT,
pos);
audiorate->next_offset = pos;
audiorate->next_ts = GST_BUFFER_TIMESTAMP (buf);
}
}
audiorate->in++;
@ -768,6 +791,9 @@ gst_audio_rate_set_property (GObject * object,
case ARG_TOLERANCE:
audiorate->tolerance = g_value_get_uint64 (value);
break;
case ARG_SKIP_TO_FIRST:
audiorate->skip_to_first = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -799,6 +825,9 @@ gst_audio_rate_get_property (GObject * object,
case ARG_TOLERANCE:
g_value_set_uint64 (value, audiorate->tolerance);
break;
case ARG_SKIP_TO_FIRST:
g_value_set_boolean (value, audiorate->skip_to_first);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;

1
gst/audiorate/gstaudiorate.h
View file

@ -58,6 +58,7 @@ struct _GstAudioRate
guint64 in, out, add, drop;
gboolean silent;
guint64 tolerance;
gboolean skip_to_first;
/* audio state */
guint64 next_offset;