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basevideoencoder: add event virtual method to allow subclass event handling

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This commit is contained in:
Mark Nauwelaerts 2011-03-23 08:49:48 +01:00
parent 16c6a49bd4
commit 294cecbc69
2 changed files with 38 additions and 35 deletions
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72
gst-libs/gst/video/gstbasevideoencoder.c
View file

@ -176,19 +176,15 @@ gst_base_video_encoder_finalize (GObject * object)
}
static gboolean
gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
gst_base_video_encoder_sink_eventfunc (GstBaseVideoEncoder * base_video_encoder,
GstEvent * event)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *base_video_encoder_class;
gboolean ret = FALSE;
base_video_encoder = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
base_video_encoder_class =
GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
GST_LOG_OBJECT (base_video_encoder, "handling event: %" GST_PTR_FORMAT,
event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
{
@ -196,12 +192,8 @@ gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
if (base_video_encoder_class->finish) {
base_video_encoder_class->finish (base_video_encoder);
}
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
event);
}
break;
}
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
@ -221,20 +213,18 @@ gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
GST_TIME_ARGS (start), GST_TIME_ARGS (stop),
GST_TIME_ARGS (position));
if (format != GST_FORMAT_TIME)
goto newseg_wrong_format;
if (format != GST_FORMAT_TIME) {
GST_DEBUG_OBJECT (base_video_encoder, "received non TIME newsegment");
break;
}
base_video_encoder->a.at_eos = FALSE;
gst_segment_set_newsegment_full (&GST_BASE_VIDEO_CODEC
(base_video_encoder)->segment, update, rate, applied_rate, format,
start, stop, position);
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
event);
}
break;
}
case GST_EVENT_CUSTOM_DOWNSTREAM:
{
const GstStructure *s;
@ -249,32 +239,44 @@ gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
base_video_encoder->force_keyunit_event = gst_event_copy (event);
GST_OBJECT_UNLOCK (base_video_encoder);
gst_event_unref (event);
ret = GST_FLOW_OK;
} else {
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD
(base_video_encoder), event);
ret = TRUE;
}
break;
}
default:
/* FIXME this changes the order of events */
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
event);
break;
}
done:
gst_object_unref (base_video_encoder);
return ret;
}
newseg_wrong_format:
{
GST_DEBUG_OBJECT (base_video_encoder, "received non TIME newsegment");
gst_event_unref (event);
goto done;
}
static gboolean
gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoEncoder *enc;
GstBaseVideoEncoderClass *klass;
gboolean handled = FALSE;
gboolean ret = TRUE;
enc = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
klass = GST_BASE_VIDEO_ENCODER_GET_CLASS (enc);
GST_DEBUG_OBJECT (enc, "received event %d, %s", GST_EVENT_TYPE (event),
GST_EVENT_TYPE_NAME (event));
if (klass->event)
handled = klass->event (enc, event);
if (!handled)
handled = gst_base_video_encoder_sink_eventfunc (enc, event);
if (!handled)
ret = gst_pad_event_default (pad, event);
GST_DEBUG_OBJECT (enc, "event handled");
gst_object_unref (enc);
return ret;
}
static gboolean

1
gst-libs/gst/video/gstbasevideoencoder.h
View file

@ -96,6 +96,7 @@ struct _GstBaseVideoEncoderClass
gboolean (*finish) (GstBaseVideoEncoder *coder);
gboolean (*handle_frame) (GstBaseVideoEncoder *coder, GstVideoFrame *frame);
GstFlowReturn (*shape_output) (GstBaseVideoEncoder *coder, GstVideoFrame *frame);
gboolean (*event) (GstBaseVideoEncoder *coder, GstEvent *event);
GstCaps *(*get_caps) (GstBaseVideoEncoder *coder);
/* FIXME before moving to base */