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rtpvp8depay: expose request-keyframe property

Browse source 
When set, the depayloader will request new keyframes on packet
loss

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/834>
This commit is contained in:
Mathieu Duponchelle 2020-12-09 01:34:20 +01:00 committed by GStreamer Merge Bot
parent 69a43dd00b
commit 20fc6da913
2 changed files with 29 additions and 1 deletions

29
gst/rtp/gstrtpvp8depay.c
View file

@ -64,11 +64,13 @@ GST_STATIC_PAD_TEMPLATE ("sink",
"encoding-name = (string) { \"VP8\", \"VP8-DRAFT-IETF-01\" }"));
#define DEFAULT_WAIT_FOR_KEYFRAME FALSE
#define DEFAULT_REQUEST_KEYFRAME FALSE
enum
{
PROP_0,
PROP_WAIT_FOR_KEYFRAME
PROP_WAIT_FOR_KEYFRAME,
PROP_REQUEST_KEYFRAME,
};
#define PICTURE_ID_NONE (UINT_MAX)
@ -80,6 +82,7 @@ gst_rtp_vp8_depay_init (GstRtpVP8Depay * self)
self->adapter = gst_adapter_new ();
self->started = FALSE;
self->wait_for_keyframe = DEFAULT_WAIT_FOR_KEYFRAME;
self->request_keyframe = DEFAULT_REQUEST_KEYFRAME;
self->last_pushed_was_lost_event = FALSE;
}
@ -111,6 +114,19 @@ gst_rtp_vp8_depay_class_init (GstRtpVP8DepayClass * gst_rtp_vp8_depay_class)
DEFAULT_WAIT_FOR_KEYFRAME,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstRtpVP8Depay:request-keyframe:
*
* Request new keyframe when packet loss is detected
*
* Since: 1.20
*/
g_object_class_install_property (object_class, PROP_REQUEST_KEYFRAME,
g_param_spec_boolean ("request-keyframe", "Request Keyframe",
"Request new keyframe when packet loss is detected",
DEFAULT_REQUEST_KEYFRAME,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
element_class->change_state = gst_rtp_vp8_depay_change_state;
depay_class->process_rtp_packet = gst_rtp_vp8_depay_process;
@ -146,6 +162,9 @@ gst_rtp_vp8_depay_set_property (GObject * object, guint prop_id,
case PROP_WAIT_FOR_KEYFRAME:
self->wait_for_keyframe = g_value_get_boolean (value);
break;
case PROP_REQUEST_KEYFRAME:
self->request_keyframe = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -162,6 +181,9 @@ gst_rtp_vp8_depay_get_property (GObject * object, guint prop_id,
case PROP_WAIT_FOR_KEYFRAME:
g_value_set_boolean (value, self->wait_for_keyframe);
break;
case PROP_REQUEST_KEYFRAME:
g_value_set_boolean (value, self->request_keyframe);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -276,6 +298,11 @@ gst_rtp_vp8_depay_process (GstRTPBaseDepayload * depay, GstRTPBuffer * rtp)
if (self->wait_for_keyframe)
self->waiting_for_keyframe = TRUE;
if (self->request_keyframe)
gst_pad_push_event (GST_RTP_BASE_DEPAYLOAD_SINKPAD (depay),
gst_video_event_new_upstream_force_key_unit (GST_CLOCK_TIME_NONE,
TRUE, 0));
}
/* At least one header and one vp8 byte */

1
gst/rtp/gstrtpvp8depay.h
View file

@ -70,6 +70,7 @@ struct _GstRtpVP8Depay
guint last_picture_id;
gboolean wait_for_keyframe;
gboolean request_keyframe;
gboolean last_pushed_was_lost_event;
};