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basevideo: Add handling of GstForceKeyUnit events

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This commit is contained in:
David Schleef 2010-09-19 19:33:40 -07:00
parent f464ac4d5d
commit db43b033ae
3 changed files with 90 additions and 0 deletions
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86
gst-libs/gst/video/gstbasevideoencoder.c
View file

@ -31,6 +31,8 @@ static void gst_base_video_encoder_finalize (GObject * object);
static gboolean gst_base_video_encoder_sink_setcaps (GstPad * pad,
GstCaps * caps);
static gboolean gst_base_video_encoder_src_event (GstPad * pad,
GstEvent * event);
static gboolean gst_base_video_encoder_sink_event (GstPad * pad,
GstEvent * event);
static GstFlowReturn gst_base_video_encoder_chain (GstPad * pad,
@ -90,6 +92,7 @@ gst_base_video_encoder_init (GstBaseVideoEncoder * base_video_encoder,
gst_pad_set_query_type_function (pad, gst_base_video_encoder_get_query_types);
gst_pad_set_query_function (pad, gst_base_video_encoder_src_query);
gst_pad_set_event_function (pad, gst_base_video_encoder_src_event);
}
static gboolean
@ -220,6 +223,25 @@ gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
event);
}
break;
case GST_EVENT_CUSTOM_DOWNSTREAM:
{
const GstStructure *s;
s = gst_event_get_structure (event);
if (gst_structure_has_name (s, "GstForceKeyUnit")) {
GST_OBJECT_LOCK (base_video_encoder);
base_video_encoder->force_keyframe = TRUE;
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);
}
break;
}
default:
/* FIXME this changes the order of events */
ret =
@ -240,6 +262,49 @@ newseg_wrong_format:
}
}
static gboolean
gst_base_video_encoder_src_event (GstPad * pad, 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);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CUSTOM_UPSTREAM:
{
const GstStructure *s;
s = gst_event_get_structure (event);
if (gst_structure_has_name (s, "GstForceKeyUnit")) {
GST_OBJECT_LOCK (base_video_encoder);
base_video_encoder->force_keyframe = TRUE;
GST_OBJECT_UNLOCK (base_video_encoder);
gst_event_unref (event);
ret = TRUE;
} else {
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_video_encoder), event);
}
break;
}
default:
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
(base_video_encoder), event);
break;
}
gst_object_unref (base_video_encoder);
return ret;
}
static const GstQueryType *
gst_base_video_encoder_get_query_types (GstPad * pad)
{
@ -461,6 +526,27 @@ gst_base_video_encoder_finish_frame (GstBaseVideoEncoder * base_video_encoder,
gst_buffer_set_caps (GST_BUFFER (frame->src_buffer),
base_video_encoder->caps);
if (frame->force_keyframe) {
GstClockTime stream_time;
GstClockTime running_time;
GstStructure *s;
running_time = gst_segment_to_running_time (&base_video_encoder->segment,
GST_FORMAT_TIME, frame->presentation_timestamp);
stream_time = gst_segment_to_stream_time (&base_video_encoder->segment,
GST_FORMAT_TIME, frame->presentation_timestamp);
/* FIXME this should send the event that we got on the sink pad
instead of creating a new one */
s = gst_structure_new ("GstForceKeyUnit",
"timestamp", G_TYPE_UINT64, frame->presentation_timestamp,
"stream-time", G_TYPE_UINT64, stream_time,
"running-time", G_TYPE_UINT64, running_time, NULL);
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder),
gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s));
}
if (base_video_encoder_class->shape_output) {
ret = base_video_encoder_class->shape_output (base_video_encoder, frame);
} else {

2
gst-libs/gst/video/gstbasevideoencoder.h
View file

@ -81,6 +81,8 @@ struct _GstBaseVideoEncoder
gint64 min_latency;
gint64 max_latency;
gboolean force_keyframe;
};
struct _GstBaseVideoEncoderClass

2
gst-libs/gst/video/gstbasevideoutils.h
View file

@ -79,6 +79,8 @@ struct _GstVideoFrame
void *coder_hook;
GstClockTime deadline;
gboolean force_keyframe;
};
gboolean gst_base_video_rawvideo_convert (GstVideoState *state,