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basevideoencoder: improve GstForceKeyUnit event handling

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This commit is contained in:
Mark Nauwelaerts 2011-03-23 08:35:51 +01:00
parent adbbe36408
commit 16c6a49bd4
2 changed files with 35 additions and 6 deletions
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39
gst-libs/gst/video/gstbasevideoencoder.c
View file

@ -72,6 +72,15 @@ gst_base_video_encoder_class_init (GstBaseVideoEncoderClass * klass)
parent_class = g_type_class_peek_parent (klass);
}
static void
gst_base_video_encoder_reset (GstBaseVideoEncoder * base_video_encoder)
{
if (base_video_encoder->force_keyunit_event) {
gst_event_unref (base_video_encoder->force_keyunit_event);
base_video_encoder->force_keyunit_event = NULL;
}
}
static void
gst_base_video_encoder_init (GstBaseVideoEncoder * base_video_encoder,
GstBaseVideoEncoderClass * klass)
@ -235,6 +244,9 @@ gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
if (gst_structure_has_name (s, "GstForceKeyUnit")) {
GST_OBJECT_LOCK (base_video_encoder);
base_video_encoder->force_keyframe = TRUE;
if (base_video_encoder->force_keyunit_event)
gst_event_unref (base_video_encoder->force_keyunit_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;
@ -433,6 +445,8 @@ gst_base_video_encoder_chain (GstPad * pad, GstBuffer * buf)
frame->presentation_frame_number =
base_video_encoder->presentation_frame_number;
base_video_encoder->presentation_frame_number++;
frame->force_keyframe = base_video_encoder->force_keyframe;
base_video_encoder->force_keyframe = FALSE;
GST_BASE_VIDEO_CODEC (base_video_encoder)->frames =
g_list_append (GST_BASE_VIDEO_CODEC (base_video_encoder)->frames, frame);
@ -460,6 +474,9 @@ gst_base_video_encoder_change_state (GstElement * element,
base_video_encoder_class = GST_BASE_VIDEO_ENCODER_GET_CLASS (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_base_video_encoder_reset (base_video_encoder);
break;
default:
break;
}
@ -468,6 +485,7 @@ gst_base_video_encoder_change_state (GstElement * element,
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_base_video_encoder_reset (base_video_encoder);
if (base_video_encoder_class->stop) {
base_video_encoder_class->stop (base_video_encoder);
}
@ -540,7 +558,7 @@ gst_base_video_encoder_finish_frame (GstBaseVideoEncoder * base_video_encoder,
if (frame->force_keyframe) {
GstClockTime stream_time;
GstClockTime running_time;
GstStructure *s;
GstEvent *ev;
running_time =
gst_segment_to_running_time (&GST_BASE_VIDEO_CODEC
@ -551,15 +569,24 @@ gst_base_video_encoder_finish_frame (GstBaseVideoEncoder * base_video_encoder,
(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",
/* re-use upstream event if any so it also conveys any additional
* info upstream arranged in there */
GST_OBJECT_LOCK (base_video_encoder);
if (base_video_encoder->force_keyunit_event) {
ev = base_video_encoder->force_keyunit_event;
base_video_encoder->force_keyunit_event = NULL;
} else {
ev = gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM,
gst_structure_new ("GstForceKeyUnit", NULL));
}
GST_OBJECT_UNLOCK (base_video_encoder);
gst_structure_set (ev->structure,
"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));
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder), ev);
}
if (base_video_encoder_class->shape_output) {

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

@ -75,6 +75,8 @@ struct _GstBaseVideoEncoder
gint64 max_latency;
gboolean force_keyframe;
GstEvent *force_keyunit_event;
union {
void *padding;
gboolean at_eos;