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rtp: fix adapter flushing in sbc payloader

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GstAdapter must be flushed in some cases (flush, new segment, state change)
Without it, it may, for example, push some leftover buffer from old
segment in new segment. This, in general, breaks timestamps.
See GstAdapter documentation for more.

Signed-off-by: Michal Dzik <michal.dzik@streamunlimited.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/700>
This commit is contained in:
Michal Dzik 2020-03-24 13:31:00 +01:00 committed by GStreamer Marge Bot
parent 769df2c5d1
commit 680722bbfa
1 changed files with 29 additions and 0 deletions
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29
gst/rtp/gstrtpsbcpay.c
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@ -109,6 +109,8 @@ static void gst_rtp_sbc_pay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtp_sbc_pay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtp_sbc_pay_change_state (GstElement * element,
GstStateChange transition);
static gint
gst_rtp_sbc_pay_get_frame_len (gint subbands, gint channels,
@ -280,6 +282,12 @@ gst_rtp_sbc_pay_sink_event (GstRTPBasePayload * payload, GstEvent * event)
case GST_EVENT_EOS:
gst_rtp_sbc_pay_flush_buffers (sbcpay);
break;
case GST_EVENT_FLUSH_STOP:
gst_adapter_clear (sbcpay->adapter);
break;
case GST_EVENT_SEGMENT:
gst_rtp_sbc_pay_flush_buffers (sbcpay);
break;
default:
break;
}
@ -287,6 +295,25 @@ gst_rtp_sbc_pay_sink_event (GstRTPBasePayload * payload, GstEvent * event)
return GST_RTP_BASE_PAYLOAD_CLASS (parent_class)->sink_event (payload, event);
}
static GstStateChangeReturn
gst_rtp_sbc_pay_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstRtpSBCPay *sbcpay = GST_RTP_SBC_PAY (element);
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_adapter_clear (sbcpay->adapter);
break;
default:
break;
}
return ret;
}
static void
gst_rtp_sbc_pay_finalize (GObject * object)
{
@ -313,6 +340,8 @@ gst_rtp_sbc_pay_class_init (GstRtpSBCPayClass * klass)
GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_handle_buffer);
payload_class->sink_event = GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_sink_event);
element_class->change_state = gst_rtp_sbc_pay_change_state;
/* properties */
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_MIN_FRAMES,