GstStateChange transition);
static GstCaps *gst_text_overlay_getcaps (GstPad * pad);
static gboolean gst_text_overlay_setcaps (GstPad * pad, GstCaps * caps);
-static GstPadLinkReturn gst_text_overlay_text_pad_linked (GstPad * pad,
- GstPad * peer);
-static void gst_text_overlay_text_pad_unlinked (GstPad * pad);
+static gboolean gst_text_overlay_src_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_text_overlay_collected (GstCollectPads * pads,
gpointer data);
static void gst_text_overlay_finalize (GObject * object);
overlay->text_sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&text_sink_template_factory), "text_sink");
- gst_pad_set_link_function (overlay->text_sinkpad,
- GST_DEBUG_FUNCPTR (gst_text_overlay_text_pad_linked));
- gst_pad_set_unlink_function (overlay->text_sinkpad,
- GST_DEBUG_FUNCPTR (gst_text_overlay_text_pad_unlinked));
gst_element_add_pad (GST_ELEMENT (overlay), overlay->text_sinkpad);
}
(&src_template_factory), "src");
gst_pad_set_getcaps_function (overlay->srcpad,
GST_DEBUG_FUNCPTR (gst_text_overlay_getcaps));
+ gst_pad_set_event_function (overlay->srcpad,
+ GST_DEBUG_FUNCPTR (gst_text_overlay_src_event));
gst_element_add_pad (GST_ELEMENT (overlay), overlay->srcpad);
overlay->layout =
overlay->video_collect_data = gst_collect_pads_add_pad (overlay->collect,
overlay->video_sinkpad, sizeof (GstCollectData));
-
- /* text pad will be added when it is linked */
- overlay->text_collect_data = NULL;
+ overlay->text_collect_data = gst_collect_pads_add_pad (overlay->collect,
+ overlay->text_sinkpad, sizeof (GstCollectData));
}
static void
return ret;
}
-static GstPadLinkReturn
-gst_text_overlay_text_pad_linked (GstPad * pad, GstPad * peer)
-{
- GstTextOverlay *overlay;
-
- overlay = GST_TEXT_OVERLAY (GST_PAD_PARENT (pad));
-
- GST_DEBUG_OBJECT (overlay, "Text pad linked");
-
- if (overlay->text_collect_data == NULL) {
- overlay->text_collect_data = gst_collect_pads_add_pad (overlay->collect,
- overlay->text_sinkpad, sizeof (GstCollectData));
- }
-
- overlay->need_render = TRUE;
-
- return GST_PAD_LINK_OK;
-}
-
-static void
-gst_text_overlay_text_pad_unlinked (GstPad * pad)
-{
- GstTextOverlay *overlay;
-
- /* don't use gst_pad_get_parent() here, will deadlock */
- overlay = GST_TEXT_OVERLAY (GST_PAD_PARENT (pad));
-
- GST_DEBUG_OBJECT (overlay, "Text pad unlinked");
-
- if (overlay->text_collect_data) {
- gst_collect_pads_remove_pad (overlay->collect, overlay->text_sinkpad);
- overlay->text_collect_data = NULL;
- }
-
- overlay->need_render = TRUE;
-}
-
static void
gst_text_overlay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
GST_OBJECT_UNLOCK (overlay);
}
+static gboolean
+gst_text_overlay_src_event (GstPad * pad, GstEvent * event)
+{
+ gboolean ret = FALSE;
+ GstTextOverlay *overlay = NULL;
+
+ overlay = GST_TEXT_OVERLAY (gst_pad_get_parent (pad));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK:
+
+ GST_DEBUG_OBJECT (overlay, "seek received, driving from here");
+
+ /* Flush downstream */
+ gst_pad_push_event (overlay->srcpad, gst_event_new_flush_start ());
+
+ /* Stopping collect pads */
+ gst_collect_pads_stop (overlay->collect);
+
+ /* Flush upstream, this is required so that we can take the stream lock
+ safely */
+ gst_pad_push_event (overlay->video_sinkpad, gst_event_new_flush_start ());
+ gst_pad_push_event (overlay->text_sinkpad, gst_event_new_flush_start ());
+
+ /* Acquire stream lock */
+ GST_PAD_STREAM_LOCK (overlay->video_sinkpad);
+ GST_PAD_STREAM_LOCK (overlay->text_sinkpad);
+
+ /* Seek on each sink pad */
+ gst_event_ref (event);
+ ret = gst_pad_push_event (overlay->video_sinkpad, event);
+ if (ret) {
+ ret = gst_pad_push_event (overlay->text_sinkpad, event);
+ } else {
+ gst_event_unref (event);
+ }
+
+ /* Stop flushing upstream */
+ gst_pad_push_event (overlay->video_sinkpad, gst_event_new_flush_stop ());
+ gst_pad_push_event (overlay->text_sinkpad, gst_event_new_flush_stop ());
+
+ /* Start collect pads again */
+ gst_collect_pads_start (overlay->collect);
+
+ /* Release stream lock */
+ GST_PAD_STREAM_UNLOCK (overlay->video_sinkpad);
+ GST_PAD_STREAM_UNLOCK (overlay->text_sinkpad);
+ break;
+ default:
+ gst_event_ref (event);
+ ret = gst_pad_push_event (overlay->video_sinkpad, event);
+ ret = gst_pad_push_event (overlay->text_sinkpad, event);
+ }
+
+ gst_object_unref (overlay);
+
+ return ret;
+}
static GstCaps *
gst_text_overlay_getcaps (GstPad * pad)
GST_DEBUG ("Collecting");
+ if (overlay->video_collect_data->abidata.ABI.new_segment) {
+
+ GST_DEBUG ("generating newsegment, start %" GST_TIME_FORMAT
+ ", stop %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (overlay->video_collect_data->segment.start),
+ GST_TIME_ARGS (overlay->video_collect_data->segment.stop));
+
+ gst_pad_push_event (overlay->srcpad, gst_event_new_new_segment (FALSE,
+ overlay->video_collect_data->segment.rate, GST_FORMAT_TIME,
+ overlay->video_collect_data->segment.start,
+ overlay->video_collect_data->segment.stop,
+ overlay->video_collect_data->segment.last_stop));
+
+ overlay->video_collect_data->abidata.ABI.new_segment = FALSE;
+ }
+
video_frame = gst_collect_pads_peek (overlay->collect,
overlay->video_collect_data);
static GstFlowReturn gst_sub_parse_chain (GstPad * sinkpad, GstBuffer * buf);
-#if 0
-static GstCaps *gst_sub_parse_type_find (GstBuffer * buf, gpointer private);
-#endif
-
static GstElementClass *parent_class = NULL;
GType
gst_element_class_set_details (element_class, &sub_parse_details);
}
+static void
+gst_sub_parse_dispose (GObject * object)
+{
+ GstSubParse *subparse = GST_SUBPARSE (object);
+
+ GST_DEBUG_OBJECT (subparse, "cleaning up subtitle parser");
+
+ if (subparse->segment) {
+ gst_segment_free (subparse->segment);
+ subparse->segment = NULL;
+ }
+
+ GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
+}
+
static void
gst_sub_parse_class_init (GstSubParseClass * klass)
{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+ object_class->dispose = gst_sub_parse_dispose;
+
element_class->change_state = gst_sub_parse_change_state;
}
subparse->textbuf = g_string_new (NULL);
subparse->parser_type = GST_SUB_PARSE_FORMAT_UNKNOWN;
+ subparse->flushing = FALSE;
+ subparse->segment = gst_segment_new ();
+ if (subparse->segment) {
+ gst_segment_init (subparse->segment, GST_FORMAT_TIME);
+ subparse->need_segment = TRUE;
+ } else {
+ GST_WARNING_OBJECT (subparse, "segment creation failed");
+ g_assert_not_reached ();
+ }
}
/*
* Source pad functions.
*/
-static gboolean
-gst_sub_parse_do_seek (GstSubParse * self, GstEvent * event)
-{
- GstSeekType type;
- GstFormat format;
-
- gst_event_parse_seek (event, NULL, &format, NULL, &type, NULL, NULL, NULL);
-
- if (format != GST_FORMAT_TIME) {
- GST_DEBUG ("Cannot handle seek in non-TIME formats");
- return FALSE;
- }
-
- /* TODO: use GstSegment? */
- if (type != GST_SEEK_TYPE_SET) {
- GST_DEBUG ("Only support GST_SEEK_TYPE_SET");
- return FALSE;
- }
-
- GST_PAD_STREAM_LOCK (self->sinkpad);
-
- /* just seek to 0, rely on the overlayer to throw away buffers until the right
- time -- and his mother cried... */
- self->next_offset = 0;
-
- /* FIXME: shouldn't we be sending at least a newsegment event? */
-
- /* FIXME: ... and send a seek event upstream? */
-
- GST_PAD_STREAM_UNLOCK (self->sinkpad);
-
- return TRUE;
-}
-
static gboolean
gst_sub_parse_src_event (GstPad * pad, GstEvent * event)
{
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
- ret = gst_sub_parse_do_seek (self, event);
+ {
+ GstFormat format;
+ GstSeekType start_type, stop_type;
+ gint64 start, stop;
+ gdouble rate;
+ gboolean update;
+
+ gst_event_parse_seek (event, &rate, &format, &self->segment_flags,
+ &start_type, &start, &stop_type, &stop);
+
+ if (format != GST_FORMAT_TIME) {
+ GST_WARNING_OBJECT (self, "we only support seeking in TIME format");
+ gst_event_unref (event);
+ goto beach;
+ }
+
+ /* Convert that seek to a seeking in bytes at position 0,
+ FIXME: could use an index */
+ ret = gst_pad_push_event (self->sinkpad,
+ gst_event_new_seek (rate, GST_FORMAT_BYTES, self->segment_flags,
+ GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, 0));
+
+ if (ret) {
+ /* Apply the seek to our segment */
+ gst_segment_set_seek (self->segment, rate, format, self->segment_flags,
+ start_type, start, stop_type, stop, &update);
+
+ GST_DEBUG_OBJECT (self, "segment configured from %" GST_TIME_FORMAT
+ " to %" GST_TIME_FORMAT ", position %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (self->segment->start),
+ GST_TIME_ARGS (self->segment->stop),
+ GST_TIME_ARGS (self->segment->last_stop));
+
+ self->next_offset = 0;
+
+ self->need_segment = TRUE;
+ } else {
+ GST_WARNING_OBJECT (self, "seek to 0 bytes failed");
+ }
+
gst_event_unref (event);
break;
+ }
default:
ret = gst_pad_event_default (pad, event);
break;
}
+beach:
gst_object_unref (self);
return ret;
const gchar *line_split;
gchar *line_chunk;
guint start_frame, end_frame;
+ gint64 clip_start = 0, clip_stop = 0;
+ gboolean in_seg = FALSE;
/* FIXME: hardcoded for now, but detecting the correct value is
* not going to be easy, I suspect... */
state->start_time = (start_frame - 1000) / frames_per_sec * GST_SECOND;
state->duration = (end_frame - start_frame) / frames_per_sec * GST_SECOND;
+ /* Check our segment start/stop */
+ in_seg = gst_segment_clip (state->segment, GST_FORMAT_TIME,
+ state->start_time, state->start_time + state->duration, &clip_start,
+ &clip_stop);
+
+ /* No need to parse that text if it's out of segment */
+ if (in_seg) {
+ state->start_time = clip_start;
+ state->duration = clip_stop - clip_start;
+ } else {
+ return NULL;
+ }
+
/* skip the {%u}{%u} part */
line = strchr (line, '}') + 1;
line = strchr (line, '}') + 1;
}
return NULL;
case 2:
+ { /* No need to parse that text if it's out of segment */
+ gint64 clip_start = 0, clip_stop = 0;
+ gboolean in_seg = FALSE;
+
+ /* Check our segment start/stop */
+ in_seg = gst_segment_clip (state->segment, GST_FORMAT_TIME,
+ state->start_time, state->start_time + state->duration,
+ &clip_start, &clip_stop);
+
+ if (in_seg) {
+ state->start_time = clip_start;
+ state->duration = clip_stop - clip_start;
+ } else {
+ state->state = 0;
+ return NULL;
+ }
+ }
/* looking for subtitle text; empty line ends this
* subtitle entry */
if (state->buf->len)
}
return NULL;
case 1:
+ { /* No need to parse that text if it's out of segment */
+ gint64 clip_start = 0, clip_stop = 0;
+ gboolean in_seg = FALSE;
+
+ /* Check our segment start/stop */
+ in_seg = gst_segment_clip (state->segment, GST_FORMAT_TIME,
+ state->start_time, state->start_time + state->duration,
+ &clip_start, &clip_stop);
+
+ if (in_seg) {
+ state->start_time = clip_start;
+ state->duration = clip_stop - clip_start;
+ } else {
+ state->state = 0;
+ return NULL;
+ }
+ }
/* looking for subtitle text; empty line ends this
* subtitle entry */
if (state->buf->len)
state->start_time = 0;
state->duration = 0;
state->state = 0;
+ state->segment = NULL;
}
static void
gst_caps_unref (caps);
}
- while ((line = get_next_line (self))) {
+ while ((line = get_next_line (self)) && !self->flushing) {
+ /* Set segment on our parser state machine */
+ self->state.segment = self->segment;
+ /* Now parse the line, out of segment lines will just return NULL */
GST_DEBUG ("Parsing line '%s'", line);
subtitle = self->parse_line (&self->state, line);
g_free (line);
GST_BUFFER_TIMESTAMP (buf) = self->state.start_time;
GST_BUFFER_DURATION (buf) = self->state.duration;
+ gst_segment_set_last_stop (self->segment, GST_FORMAT_TIME,
+ self->state.start_time);
+
GST_DEBUG ("Sending text '%s', %" GST_TIME_FORMAT " + %"
GST_TIME_FORMAT, subtitle, GST_TIME_ARGS (self->state.start_time),
GST_TIME_ARGS (self->state.duration));
GstSubParse *self;
GST_DEBUG ("gst_sub_parse_chain");
- self = GST_SUBPARSE (GST_OBJECT_PARENT (sinkpad));
+ self = GST_SUBPARSE (gst_pad_get_parent (sinkpad));
+
+ /* Push newsegment if needed */
+ if (self->need_segment) {
+ gst_pad_push_event (self->srcpad, gst_event_new_new_segment (FALSE,
+ self->segment->rate, self->segment->format,
+ self->segment->last_stop, self->segment->stop,
+ self->segment->time));
+ self->need_segment = FALSE;
+ }
ret = handle_buffer (self, buf);
+ gst_object_unref (self);
+
return ret;
}
ret = gst_pad_event_default (pad, event);
break;
}
- case GST_EVENT_NEWSEGMENT:{
+ case GST_EVENT_NEWSEGMENT:
+ {
+ GstFormat format;
+ gdouble rate;
+ gint64 start, stop, time;
+ gboolean update;
+
+ GST_DEBUG_OBJECT (self, "received new segment");
+
+ gst_event_parse_new_segment (event, &update, &rate, &format, &start,
+ &stop, &time);
+
+ /* now copy over the values */
+ gst_segment_set_newsegment (self->segment, update, rate, format,
+ start, stop, time);
+
+ ret = TRUE;
gst_event_unref (event);
break;
}
+ case GST_EVENT_FLUSH_START:
+ {
+ self->flushing = TRUE;
+
+ ret = gst_pad_event_default (pad, event);
+ break;
+ }
+ case GST_EVENT_FLUSH_STOP:
+ {
+ self->flushing = FALSE;
+
+ ret = gst_pad_event_default (pad, event);
+ break;
+ }
default:
ret = gst_pad_event_default (pad, event);
break;
projects / platform / upstream / gst-plugins-base.git / commitdiff