static GstPadProbeReturn
event_probe (GstPad * pad, GstPadProbeInfo * info, gpointer udata)
{
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
GstEvent *event = GST_PAD_PROBE_INFO_DATA (info);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_STREAM_START:{
guint group_id;
g_mutex_lock (&test_mutex);
fail_unless (gst_event_parse_group_id (event, &group_id));
if (have_group_id) {
if (group_id_pre != group_id) {
event = gst_event_copy (event);
gst_event_set_group_id (event, group_id_pre);
gst_event_replace ((GstEvent **) & info->data, event);
gst_event_unref (event);
}
} else {
group_id_pre = group_id;
have_group_id = TRUE;
}
g_mutex_unlock (&test_mutex);
break;
}
default:
break;
}
return ret;
}
/* The nav event handler handles nav events, but still forwards them, so you
* should be able to even use puzzle while navigating a dvd menu. We return
* TRUE of course even when noone downstream handles the event.
*/
static gboolean
nav_event_handler (GstPad * pad, GstEvent * event)
{
GstPuzzle *puzzle;
GstVideofilter *filter;
const gchar *type;
gboolean result = FALSE;
gdouble x, y;
gint xpos = 0, ypos = 0;
puzzle = GST_PUZZLE (gst_pad_get_parent (pad));
filter = GST_VIDEOFILTER (puzzle);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NAVIGATION:
/* translate the event */
if (gst_structure_get_double (event->event_data.structure.structure,
"pointer_x", &x) &&
gst_structure_get_double (event->event_data.structure.structure,
"pointer_y", &y)) {
gint width, height;
width = gst_videofilter_get_input_width (filter);
height = gst_videofilter_get_input_height (filter);
width = (width / puzzle->columns) & ~3;
height = (height / puzzle->rows) & ~3;
xpos = (int) x / width;
ypos = (int) y / height;
if (xpos >= 0 && xpos < puzzle->columns && ypos >= 0
&& ypos < puzzle->rows) {
GstEvent *copy;
guint lookup;
lookup = puzzle->permutation[ypos * puzzle->columns + xpos];
GST_DEBUG_OBJECT (puzzle, "translated %dx%d (%gx%g) to %dx%d (%gx%g)",
xpos, ypos, x, y,
lookup % puzzle->columns, lookup / puzzle->columns,
x + ((gint) (lookup % puzzle->columns) - xpos) * width,
y + ((gint) (lookup / puzzle->columns) - ypos) * height);
x += ((gint) (lookup % puzzle->columns) - xpos) * width;
y += ((gint) (lookup / puzzle->columns) - ypos) * height;
copy = gst_event_copy (event);
gst_structure_set (copy->event_data.structure.structure,
"pointer_x", G_TYPE_DOUBLE, x,
"pointer_y", G_TYPE_DOUBLE, y, NULL);
gst_event_unref (event);
event = copy;
}
}
/* handle the event. NOTE: it has already been translated! */
type = gst_structure_get_string (event->event_data.structure.structure,
"event");
if (g_str_equal (type, "key-press")) {
const gchar *key =
gst_structure_get_string (event->event_data.structure.structure,
"key");
if (g_str_equal (key, "space")) {
if (gst_puzzle_is_solved (puzzle)) {
gst_puzzle_shuffle (puzzle);
} else {
gst_puzzle_solve (puzzle);
}
} else {
if (puzzle->solved)
break;
if (g_str_equal (key, "Left")) {
gst_puzzle_move (puzzle, DIR_LEFT);
} else if (g_str_equal (key, "Right")) {
gst_puzzle_move (puzzle, DIR_RIGHT);
} else if (g_str_equal (key, "Up")) {
gst_puzzle_move (puzzle, DIR_UP);
} else if (g_str_equal (key, "Down")) {
gst_puzzle_move (puzzle, DIR_DOWN);
}
}
puzzle->solved = gst_puzzle_is_solved (puzzle);
} else if (g_str_equal (type, "mouse-button-press")) {
gint button;
if (gst_structure_get_int (event->event_data.structure.structure,
"button", &button)) {
if (button == 1) {
if (xpos >= 0 && xpos < puzzle->columns && ypos >= 0
&& ypos < puzzle->rows && !puzzle->solved) {
gst_puzzle_swap (puzzle, ypos * puzzle->columns + xpos);
puzzle->solved = gst_puzzle_is_solved (puzzle);
}
} else if (button == 2) {
if (puzzle->solved) {
gst_puzzle_shuffle (puzzle);
} else {
gst_puzzle_solve (puzzle);
}
puzzle->solved = gst_puzzle_is_solved (puzzle);
}
}
}
/* FIXME: only return TRUE for events we handle? */
result = TRUE;
break;
default:
break;
}
return gst_pad_event_default (pad, event) || result;
}
static gboolean
gst_base_video_encoder_sink_eventfunc (GstBaseVideoEncoder * base_video_encoder,
GstEvent * event)
{
GstBaseVideoEncoderClass *base_video_encoder_class;
gboolean ret = FALSE;
base_video_encoder_class =
GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
{
GstFlowReturn flow_ret;
GST_BASE_VIDEO_CODEC_STREAM_LOCK (base_video_encoder);
base_video_encoder->a.at_eos = TRUE;
if (base_video_encoder_class->finish) {
flow_ret = base_video_encoder_class->finish (base_video_encoder);
} else {
flow_ret = GST_FLOW_OK;
}
ret = (flow_ret == GST_BASE_VIDEO_ENCODER_FLOW_DROPPED);
GST_BASE_VIDEO_CODEC_STREAM_UNLOCK (base_video_encoder);
break;
}
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
double rate;
double applied_rate;
GstFormat format;
gint64 start;
gint64 stop;
gint64 position;
GST_BASE_VIDEO_CODEC_STREAM_LOCK (base_video_encoder);
gst_event_parse_new_segment_full (event, &update, &rate, &applied_rate,
&format, &start, &stop, &position);
GST_DEBUG_OBJECT (base_video_encoder, "newseg rate %g, applied rate %g, "
"format %d, start = %" GST_TIME_FORMAT ", stop = %" GST_TIME_FORMAT
", pos = %" GST_TIME_FORMAT, rate, applied_rate, format,
GST_TIME_ARGS (start), GST_TIME_ARGS (stop),
GST_TIME_ARGS (position));
if (format != GST_FORMAT_TIME) {
GST_DEBUG_OBJECT (base_video_encoder, "received non TIME newsegment");
GST_BASE_VIDEO_CODEC_STREAM_UNLOCK (base_video_encoder);
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);
GST_BASE_VIDEO_CODEC_STREAM_UNLOCK (base_video_encoder);
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;
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 = TRUE;
}
break;
}
default:
break;
}
return ret;
}
