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videoencoder: Add sink_query() src_query() virtual functions

Browse source 
Based on the videodecoder change by Nicolas Dufresne and applied
here for consistency.

https://bugzilla.gnome.org/show_bug.cgi?id=720103
This commit is contained in:
Sebastian Dröge 2013-12-09 16:33:40 +01:00
parent 09a6ca97d2
commit 729e3c8a10
2 changed files with 69 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

61
gst-libs/gst/video/gstvideoencoder.c
View file

@ -235,6 +235,11 @@ static gboolean gst_video_encoder_negotiate_default (GstVideoEncoder * encoder);
static gboolean gst_video_encoder_negotiate_unlocked (GstVideoEncoder *
encoder);
static gboolean gst_video_encoder_sink_query_default (GstVideoEncoder * encoder,
GstQuery * query);
static gboolean gst_video_encoder_src_query_default (GstVideoEncoder * encoder,
GstQuery * query);
/* we can't use G_DEFINE_ABSTRACT_TYPE because we need the klass in the _init
* method to get to the padtemplates */
GType
@ -296,6 +301,8 @@ gst_video_encoder_class_init (GstVideoEncoderClass * klass)
klass->propose_allocation = gst_video_encoder_propose_allocation_default;
klass->decide_allocation = gst_video_encoder_decide_allocation_default;
klass->negotiate = gst_video_encoder_negotiate_default;
klass->sink_query = gst_video_encoder_sink_query_default;
klass->src_query = gst_video_encoder_src_query_default;
}
static gboolean
@ -812,14 +819,12 @@ config_failed:
}
static gboolean
gst_video_encoder_sink_query (GstPad * pad, GstObject * parent,
gst_video_encoder_sink_query_default (GstVideoEncoder * encoder,
GstQuery * query)
{
GstVideoEncoder *encoder;
GstPad *pad = GST_VIDEO_ENCODER_SINK_PAD (encoder);
gboolean res = FALSE;
encoder = GST_VIDEO_ENCODER (parent);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
{
@ -841,12 +846,32 @@ gst_video_encoder_sink_query (GstPad * pad, GstObject * parent,
break;
}
default:
res = gst_pad_query_default (pad, parent, query);
res = gst_pad_query_default (pad, GST_OBJECT (encoder), query);
break;
}
return res;
}
static gboolean
gst_video_encoder_sink_query (GstPad * pad, GstObject * parent,
GstQuery * query)
{
GstVideoEncoder *encoder;
GstVideoEncoderClass *encoder_class;
gboolean ret = FALSE;
encoder = GST_VIDEO_ENCODER (parent);
encoder_class = GST_VIDEO_ENCODER_GET_CLASS (encoder);
GST_DEBUG_OBJECT (encoder, "received query %d, %s", GST_QUERY_TYPE (query),
GST_QUERY_TYPE_NAME (query));
if (encoder_class->sink_query)
ret = encoder_class->sink_query (encoder, query);
return ret;
}
static void
gst_video_encoder_finalize (GObject * object)
{
@ -1141,13 +1166,12 @@ gst_video_encoder_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
}
static gboolean
gst_video_encoder_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
gst_video_encoder_src_query_default (GstVideoEncoder * enc, GstQuery * query)
{
GstPad *pad = GST_VIDEO_ENCODER_SRC_PAD (enc);
GstVideoEncoderPrivate *priv;
GstVideoEncoder *enc;
gboolean res;
enc = GST_VIDEO_ENCODER (parent);
priv = enc->priv;
GST_LOG_OBJECT (enc, "handling query: %" GST_PTR_FORMAT, query);
@ -1193,7 +1217,7 @@ gst_video_encoder_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
}
break;
default:
res = gst_pad_query_default (pad, parent, query);
res = gst_pad_query_default (pad, GST_OBJECT (enc), query);
}
return res;
@ -1202,6 +1226,25 @@ error:
return res;
}
static gboolean
gst_video_encoder_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstVideoEncoder *encoder;
GstVideoEncoderClass *encoder_class;
gboolean ret = FALSE;
encoder = GST_VIDEO_ENCODER (parent);
encoder_class = GST_VIDEO_ENCODER_GET_CLASS (encoder);
GST_DEBUG_OBJECT (encoder, "received query %d, %s", GST_QUERY_TYPE (query),
GST_QUERY_TYPE_NAME (query));
if (encoder_class->src_query)
ret = encoder_class->src_query (encoder, query);
return ret;
}
static GstVideoCodecFrame *
gst_video_encoder_new_frame (GstVideoEncoder * encoder, GstBuffer * buf,
GstClockTime pts, GstClockTime dts, GstClockTime duration)

18
gst-libs/gst/video/gstvideoencoder.h
View file

@ -214,6 +214,16 @@ struct _GstVideoEncoder
* @flush: Optional.
* Flush all remaining data from the encoder without
* pushing it downstream. Since: 1.2
* @sink_query: Optional.
* Query handler on the sink pad. This function should
* return TRUE if the query could be performed. Subclasses
* should chain up to the parent implementation to invoke the
* default handler. Since 1.4
* @src_query: Optional.
* Query handler on the source pad. This function should
* return TRUE if the query could be performed. Subclasses
* should chain up to the parent implementation to invoke the
* default handler. Since 1.4
*
* Subclasses can override any of the available virtual methods or not, as
* needed. At minimum @handle_frame needs to be overridden, and @set_format
@ -265,8 +275,14 @@ struct _GstVideoEncoderClass
GstQuery * query);
gboolean (*flush) (GstVideoEncoder *encoder);
gboolean (*sink_query) (GstVideoEncoder *encoder,
GstQuery *query);
gboolean (*src_query) (GstVideoEncoder *encoder,
GstQuery *query);
/*< private >*/
gpointer _gst_reserved[GST_PADDING_LARGE-1];
gpointer _gst_reserved[GST_PADDING_LARGE-3];
};
GType gst_video_encoder_get_type (void);