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gst/audiorate/gstaudiorate.c: Implement sample dropping and notify

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Original commit message from CVS:
* gst/audiorate/gstaudiorate.c: (gst_audiorate_class_init),
(gst_audiorate_init), (gst_audiorate_chain),
(gst_audiorate_set_property), (gst_audiorate_get_property):
Implement sample dropping and notify
This commit is contained in:
Wim Taymans 2004-06-23 11:06:10 +00:00
parent 01226c6e8d
commit 13377326ca
2 changed files with 66 additions and 9 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2004-06-23 Wim Taymans <wim@fluendo.com>
* gst/audiorate/gstaudiorate.c: (gst_audiorate_class_init),
(gst_audiorate_init), (gst_audiorate_chain),
(gst_audiorate_set_property), (gst_audiorate_get_property):
Implement sample dropping and notify
2004-06-22 Wim Taymans <wim@fluendo.com>
* ext/theora/theoraenc.c: (gst_theora_enc_class_init),

68
gst/audiorate/gstaudiorate.c
View file

@ -49,6 +49,7 @@ struct _GstAudiorate
guint64 next_offset;
guint64 in, out, add, drop;
gboolean silent;
};
struct _GstAudiorateClass
@ -70,6 +71,8 @@ enum
LAST_SIGNAL
};
#define DEFAULT_SILENT TRUE
enum
{
ARG_0,
@ -77,6 +80,7 @@ enum
ARG_OUT,
ARG_ADD,
ARG_DROP,
ARG_SILENT,
/* FILL ME */
};
@ -162,11 +166,16 @@ gst_audiorate_class_init (GstAudiorateClass * klass)
g_param_spec_uint64 ("out", "Out",
"Number of output samples", 0, G_MAXUINT64, 0, G_PARAM_READABLE));
g_object_class_install_property (object_class, ARG_ADD,
g_param_spec_uint64 ("duplicate", "Duplicate",
g_param_spec_uint64 ("add", "Add",
"Number of added samples", 0, G_MAXUINT64, 0, G_PARAM_READABLE));
g_object_class_install_property (object_class, ARG_DROP,
g_param_spec_uint64 ("drop", "Drop",
"Number of dropped samples", 0, G_MAXUINT64, 0, G_PARAM_READABLE));
g_object_class_install_property (object_class, ARG_SILENT,
g_param_spec_boolean ("silent", "silent",
"Don't emit notify for dropped and duplicated frames",
DEFAULT_SILENT, G_PARAM_READWRITE));
object_class->set_property = gst_audiorate_set_property;
object_class->get_property = gst_audiorate_get_property;
@ -221,6 +230,7 @@ gst_audiorate_init (GstAudiorate * audiorate)
audiorate->out = 0;
audiorate->drop = 0;
audiorate->add = 0;
audiorate->silent = DEFAULT_SILENT;
}
static void
@ -231,6 +241,7 @@ gst_audiorate_chain (GstPad * pad, GstData * data)
GstClockTime in_time, in_duration;
guint64 in_offset, in_offset_end;
gint in_size;
gint bytes_per_sample;
audiorate = GST_AUDIORATE (gst_pad_get_parent (pad));
@ -250,15 +261,15 @@ gst_audiorate_chain (GstPad * pad, GstData * data)
in_offset = GST_BUFFER_OFFSET (buf);
in_offset_end = GST_BUFFER_OFFSET_END (buf);
/* FIXME: use caps to get this */
bytes_per_sample = in_size / (in_offset_end - in_offset);
/* do we need to insert samples */
if (in_offset > audiorate->next_offset) {
GstBuffer *fill;
gint bytes_per_sample, fillsize;
gint fillsize;
guint64 fillsamples;
/* FIXME: use caps to get this */
bytes_per_sample = in_size / (in_offset_end - in_offset);
fillsamples = in_offset - audiorate->next_offset;
fillsize = fillsamples * bytes_per_sample;
@ -272,10 +283,43 @@ gst_audiorate_chain (GstPad * pad, GstData * data)
gst_pad_push (audiorate->srcpad, GST_DATA (fill));
audiorate->out++;
audiorate->add++;
audiorate->add += fillsamples;
if (!audiorate->silent)
g_object_notify (G_OBJECT (audiorate), "add");
} else if (in_offset < audiorate->next_offset) {
g_warning ("overlapping samples, implement me");
audiorate->drop++;
/* need to remove samples */
if (in_offset_end <= audiorate->next_offset) {
audiorate->drop += in_size / bytes_per_sample;
/* we can drop the buffer completely */
gst_buffer_unref (buf);
if (!audiorate->silent)
g_object_notify (G_OBJECT (audiorate), "drop");
return;
} else {
gint truncsamples, truncsize, leftsize;
GstBuffer *trunc;
/* truncate buffer */
truncsamples = audiorate->next_offset - in_offset;
truncsize = truncsamples * bytes_per_sample;
leftsize = in_size - truncsize;
trunc = gst_buffer_create_sub (buf, truncsize, in_size);
GST_BUFFER_DURATION (trunc) = in_duration * leftsize / in_size;
GST_BUFFER_TIMESTAMP (trunc) =
in_time + in_duration - GST_BUFFER_DURATION (trunc);
GST_BUFFER_OFFSET (trunc) = audiorate->next_offset;
GST_BUFFER_OFFSET_END (trunc) = in_offset_end;
gst_buffer_unref (buf);
buf = trunc;
audiorate->drop += truncsamples;
}
}
gst_pad_push (audiorate->srcpad, GST_DATA (buf));
audiorate->out++;
@ -287,9 +331,12 @@ static void
gst_audiorate_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
//GstAudiorate *audiorate = GST_AUDIORATE (object);
GstAudiorate *audiorate = GST_AUDIORATE (object);
switch (prop_id) {
case ARG_SILENT:
audiorate->silent = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -315,6 +362,9 @@ gst_audiorate_get_property (GObject * object,
case ARG_DROP:
g_value_set_uint64 (value, audiorate->drop);
break;
case ARG_SILENT:
g_value_set_boolean (value, audiorate->silent);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;