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rtpgstdepay: only push events when they changed

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Keep track of the STREAM_START and TAG events and only push them
when they changed.
This commit is contained in:
Wim Taymans 2013-08-21 12:10:00 +02:00
parent b144809b7c
commit 77ed44a88a
2 changed files with 60 additions and 1 deletions
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58
gst/rtp/gstrtpgstdepay.c
View file

@ -131,6 +131,11 @@ gst_rtp_gst_depay_reset (GstRtpGSTDepay * rtpgstdepay, gboolean full)
rtpgstdepay->current_CV = 0;
for (i = 0; i < 8; i++)
store_cache (rtpgstdepay, i, NULL);
g_free (rtpgstdepay->stream_id);
rtpgstdepay->stream_id = NULL;
if (rtpgstdepay->tags)
gst_tag_list_unref (rtpgstdepay->tags);
rtpgstdepay->tags = NULL;
}
}
@ -315,6 +320,57 @@ unknown_event:
}
}
static void
store_event (GstRtpGSTDepay * rtpgstdepay, GstEvent * event)
{
gboolean do_push = FALSE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_TAG:
{
GstTagList *old, *tags;
gst_event_parse_tag (event, &tags);
old = rtpgstdepay->tags;
if (!old || !gst_tag_list_is_equal (old, tags)) {
do_push = TRUE;
if (old)
gst_tag_list_unref (old);
rtpgstdepay->tags = gst_tag_list_ref (tags);
}
break;
}
case GST_EVENT_CUSTOM_DOWNSTREAM:
case GST_EVENT_CUSTOM_BOTH:
/* always push custom events */
do_push = TRUE;
break;
case GST_EVENT_STREAM_START:
{
gchar *old;
const gchar *stream_id = NULL;
gst_event_parse_stream_start (event, &stream_id);
old = rtpgstdepay->stream_id;
if (!old || g_strcmp0 (old, stream_id)) {
do_push = TRUE;
g_free (old);
rtpgstdepay->stream_id = g_strdup (stream_id);
}
break;
}
default:
/* unknown event, don't push */
break;
}
if (do_push)
gst_pad_push_event (GST_RTP_BASE_DEPAYLOAD (rtpgstdepay)->srcpad, event);
else
gst_event_unref (event);
}
static GstBuffer *
gst_rtp_gst_depay_process (GstRTPBaseDepayload * depayload, GstBuffer * buf)
{
@ -402,7 +458,7 @@ gst_rtp_gst_depay_process (GstRTPBaseDepayload * depayload, GstBuffer * buf)
GST_DEBUG_OBJECT (rtpgstdepay,
"inline event, length %u, %" GST_PTR_FORMAT, size, event);
gst_pad_push_event (depayload->srcpad, event);
store_event (rtpgstdepay, event);
/* no buffer after event */
avail = 0;

3
gst/rtp/gstrtpgstdepay.h
View file

@ -47,6 +47,9 @@ struct _GstRtpGSTDepay
GstAdapter *adapter;
guint current_CV;
GstCaps *CV_cache[8];
GstTagList *tags;
gchar *stream_id;
};
struct _GstRtpGSTDepayClass