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videodecoder: Add a property to disable dropping on QoS

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This commit is contained in:
Nicolas Dufresne 2018-10-02 12:04:14 -04:00 committed by GStreamer Merge Bot
parent 1570314609
commit 1174e37b80
1 changed files with 67 additions and 1 deletions
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68
gst-libs/gst/video/gstvideodecoder.c
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@ -287,6 +287,15 @@
GST_DEBUG_CATEGORY (videodecoder_debug);
#define GST_CAT_DEFAULT videodecoder_debug
/* properties */
#define DEFAULT_QOS TRUE
enum
{
PROP_0,
PROP_QOS,
};
struct _GstVideoDecoderPrivate
{
/* FIXME introduce a context ? */
@ -370,6 +379,7 @@ struct _GstVideoDecoderPrivate
gboolean output_state_changed;
/* QoS properties */
gboolean do_qos;
gdouble proportion; /* OBJECT_LOCK */
GstClockTime earliest_time; /* OBJECT_LOCK */
GstClockTime qos_frame_duration; /* OBJECT_LOCK */
@ -412,6 +422,10 @@ static void gst_video_decoder_init (GstVideoDecoder * dec,
GstVideoDecoderClass * klass);
static void gst_video_decoder_finalize (GObject * object);
static void gst_video_decoder_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec);
static void gst_video_decoder_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec);
static gboolean gst_video_decoder_setcaps (GstVideoDecoder * dec,
GstCaps * caps);
@ -523,6 +537,8 @@ gst_video_decoder_class_init (GstVideoDecoderClass * klass)
g_type_class_adjust_private_offset (klass, &private_offset);
gobject_class->finalize = gst_video_decoder_finalize;
gobject_class->get_property = gst_video_decoder_get_property;
gobject_class->set_property = gst_video_decoder_set_property;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_video_decoder_change_state);
@ -535,6 +551,21 @@ gst_video_decoder_class_init (GstVideoDecoderClass * klass)
klass->sink_query = gst_video_decoder_sink_query_default;
klass->src_query = gst_video_decoder_src_query_default;
klass->transform_meta = gst_video_decoder_transform_meta_default;
/**
* GstVideoDecoder:qos:
*
* If set to %TRUE the decoder will handle QoS events received
* from downstream elements.
* This includes dropping output frames which are detected as late
* using the metrics reported by those events.
*
* Since: 1.18
*/
g_object_class_install_property (gobject_class, PROP_QOS,
g_param_spec_boolean ("qos", "Quality of Service",
"Handle Quality-of-Service events from downstream",
DEFAULT_QOS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
@ -582,6 +613,9 @@ gst_video_decoder_init (GstVideoDecoder * decoder, GstVideoDecoderClass * klass)
decoder->priv->packetized = TRUE;
decoder->priv->needs_format = FALSE;
/* properties */
decoder->priv->do_qos = DEFAULT_QOS;
decoder->priv->min_latency = 0;
decoder->priv->max_latency = 0;
@ -783,6 +817,38 @@ gst_video_decoder_finalize (GObject * object)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_video_decoder_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstVideoDecoderPrivate *priv = GST_VIDEO_DECODER (object)->priv;
switch (property_id) {
case PROP_QOS:
g_value_set_boolean (value, priv->do_qos);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gst_video_decoder_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstVideoDecoderPrivate *priv = GST_VIDEO_DECODER (object)->priv;
switch (property_id) {
case PROP_QOS:
priv->do_qos = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
/* hard == FLUSH, otherwise discont */
static GstFlowReturn
gst_video_decoder_flush (GstVideoDecoder * dec, gboolean hard)
@ -3129,7 +3195,7 @@ gst_video_decoder_clip_and_push_buf (GstVideoDecoder * decoder, GstBuffer * buf)
}
/* Is buffer too late (QoS) ? */
if (GST_CLOCK_TIME_IS_VALID (priv->earliest_time)
if (priv->do_qos && GST_CLOCK_TIME_IS_VALID (priv->earliest_time)
&& GST_CLOCK_TIME_IS_VALID (cstart)) {
GstClockTime deadline =
gst_segment_to_running_time (segment, GST_FORMAT_TIME, cstart);