static void gst_sub_parse_class_init (GstSubParseClass * klass);
static void gst_sub_parse_init (GstSubParse * subparse);
-#if 0
-static const GstFormat *gst_sub_parse_formats (GstPad * pad);
-static const GstEventMask *gst_sub_parse_src_eventmask (GstPad * pad);
-#endif
static gboolean gst_sub_parse_src_event (GstPad * pad, GstEvent * event);
+static gboolean gst_sub_parse_sink_event (GstPad * pad, GstEvent * event);
static GstStateChangeReturn gst_sub_parse_change_state (GstElement * element,
GstStateChange transition);
-#if 0
-static void gst_sub_parse_loop (GstPad * sinkpad);
-#endif
static GstFlowReturn gst_sub_parse_chain (GstPad * sinkpad, GstBuffer * buf);
#if 0
gst_sub_parse_init (GstSubParse * subparse)
{
subparse->sinkpad = gst_pad_new_from_static_template (&sink_templ, "sink");
- gst_pad_set_chain_function (subparse->sinkpad, gst_sub_parse_chain);
+ gst_pad_set_chain_function (subparse->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_sub_parse_chain));
+ gst_pad_set_event_function (subparse->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_sub_parse_sink_event));
gst_element_add_pad (GST_ELEMENT (subparse), subparse->sinkpad);
subparse->srcpad = gst_pad_new_from_static_template (&src_templ, "src");
- gst_pad_set_event_function (subparse->srcpad, gst_sub_parse_src_event);
+ gst_pad_set_event_function (subparse->srcpad,
+ GST_DEBUG_FUNCPTR (gst_sub_parse_src_event));
gst_element_add_pad (GST_ELEMENT (subparse), subparse->srcpad);
subparse->textbuf = g_string_new (NULL);
* Source pad functions.
*/
-#if 0
-static const GstFormat *
-gst_sub_parse_formats (GstPad * pad)
-{
- static const GstFormat formats[] = {
- GST_FORMAT_TIME,
- 0
- };
-
- return formats;
-}
-
-static const GstEventMask *
-gst_sub_parse_src_eventmask (GstPad * pad)
-{
- static const GstEventMask masks[] = {
- {GST_EVENT_SEEK, GST_SEEK_METHOD_SET},
- {0, 0}
- };
-
- return masks;
-}
-#endif
-
static gboolean
-gst_sub_parse_src_event (GstPad * pad, GstEvent * event)
+gst_sub_parse_do_seek (GstSubParse * self, GstEvent * event)
{
- GstSubParse *self = GST_SUBPARSE (gst_pad_get_parent (pad));
- GstFormat format;
GstSeekType type;
-
-#define grvif(x,y) g_return_val_if_fail (x, y)
-
- grvif (GST_EVENT_TYPE (event) == GST_EVENT_SEEK, FALSE);
+ GstFormat format;
gst_event_parse_seek (event, NULL, &format, NULL, &type, NULL, NULL, NULL);
- /* we guaranteed these with the eventmask */
- grvif (format == GST_FORMAT_TIME, FALSE);
- grvif (type == GST_SEEK_TYPE_SET, FALSE);
+ if (format != GST_FORMAT_TIME) {
+ GST_DEBUG ("Cannot handle seek in non-TIME formats");
+ return FALSE;
+ }
- gst_event_unref (event);
+ /* 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);
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)
+{
+ GstSubParse *self = GST_SUBPARSE (gst_pad_get_parent (pad));
+ gboolean ret = FALSE;
+
+ GST_DEBUG ("Handling %s event", GST_EVENT_TYPE_NAME (event));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK:
+ ret = gst_sub_parse_do_seek (self, event);
+ gst_event_unref (event);
+ break;
+ default:
+ ret = gst_pad_event_default (pad, event);
+ break;
+ }
+
gst_object_unref (self);
- return TRUE;
+ return ret;
}
static gchar *
}
return NULL;
default:
- g_assert_not_reached ();
- return NULL;
+ g_return_val_if_reached (NULL);
}
}
static void
parser_state_init (ParserState * state)
{
+ GST_DEBUG ("initialising parser");
+
if (state->buf) {
g_string_truncate (state->buf, 0);
} else {
state->buf = g_string_new (NULL);
}
- state->start_time = state->duration = state->state = 0;
+ state->start_time = 0;
+ state->duration = 0;
+ state->state = 0;
}
static void
static GstFlowReturn
handle_buffer (GstSubParse * self, GstBuffer * buf)
{
+ GstFlowReturn ret = GST_FLOW_OK;
GstCaps *caps = NULL;
gchar *line, *subtitle;
if (!(caps = gst_sub_parse_format_autodetect (self))) {
return GST_FLOW_UNEXPECTED;
}
+ if (!gst_pad_set_caps (self->srcpad, caps)) {
+ gst_caps_unref (caps);
+ return GST_FLOW_UNEXPECTED;
+ }
+ gst_caps_unref (caps);
}
while ((line = get_next_line (self))) {
+ GST_DEBUG ("Parsing line '%s'", line);
subtitle = self->parse_line (&self->state, line);
g_free (line);
if (subtitle) {
- GST_DEBUG ("subparse: loop: text %s, %lld+%lld\n",
- subtitle, self->state.start_time, self->state.duration);
-
- buf = gst_buffer_new ();
- GST_BUFFER_DATA (buf) = (guint8 *) subtitle;
- GST_BUFFER_SIZE (buf) = strlen (subtitle);
- GST_BUFFER_TIMESTAMP (buf) = self->state.start_time;
- GST_BUFFER_DURATION (buf) = self->state.duration;
- GST_DEBUG ("sending text buffer %s at %lld", subtitle,
- self->state.start_time);
-
- if (G_UNLIKELY (caps)) {
- /* set caps on the first buffer */
- gst_buffer_set_caps (buf, caps);
- gst_caps_unref (caps);
- caps = NULL;
- }
+ guint subtitle_len = strlen (subtitle);
- gst_pad_push (self->srcpad, buf);
- }
- }
+ ret = gst_pad_alloc_buffer_and_set_caps (self->srcpad,
+ GST_BUFFER_OFFSET_NONE, subtitle_len,
+ GST_PAD_CAPS (self->srcpad), &buf);
- return GST_FLOW_OK;
-}
+ if (ret == GST_FLOW_OK) {
+ memcpy (GST_BUFFER_DATA (buf), subtitle, subtitle_len);
+ GST_BUFFER_TIMESTAMP (buf) = self->state.start_time;
+ GST_BUFFER_DURATION (buf) = self->state.duration;
-#if 0
-static void
-gst_sub_parse_loop (GstPad * sinkpad)
-{
- GstFlowReturn ret = GST_FLOW_OK;
- GstSubParse *self;
- GstBuffer *buf;
-
- GST_DEBUG ("gst_sub_parse_loop");
- self = GST_SUBPARSE (GST_OBJECT_PARENT (sinkpad));
+ 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));
- GST_STREAM_LOCK (sinkpad);
-
- ret = gst_pad_pull_range (sinkpad, self->next_offset, 1024, &buf);
+ ret = gst_pad_push (self->srcpad, buf);
+ }
- if (ret == GST_FLOW_OK)
- ret = handle_buffer (self, buf);
+ g_free (subtitle);
+ subtitle = NULL;
- if (ret != GST_FLOW_OK)
- gst_task_pause (GST_RPAD_TASK (sinkpad));
+ if (GST_FLOW_IS_FATAL (ret))
+ break;
+ }
+ }
- GST_STREAM_UNLOCK (sinkpad);
+ return ret;
}
-#endif
static GstFlowReturn
gst_sub_parse_chain (GstPad * sinkpad, GstBuffer * buf)
return ret;
}
+static gboolean
+gst_sub_parse_sink_event (GstPad * pad, GstEvent * event)
+{
+ GstSubParse *self = GST_SUBPARSE (gst_pad_get_parent (pad));
+ gboolean ret = FALSE;
+
+ GST_DEBUG ("Handling %s event", GST_EVENT_TYPE_NAME (event));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_EOS:{
+ /* Make sure the last subrip chunk is pushed out even
+ * if the file does not have an empty line at the end */
+ if (self->parser_type == GST_SUB_PARSE_FORMAT_SUBRIP) {
+ GstBuffer *buf = gst_buffer_new_and_alloc (1 + 1);
+
+ GST_DEBUG ("EOS. Pushing remaining text (if any)");
+ GST_BUFFER_DATA (buf)[0] = '\n';
+ GST_BUFFER_DATA (buf)[1] = '\0'; /* play it safe */
+ GST_BUFFER_SIZE (buf) = 1;
+ GST_BUFFER_OFFSET (buf) = self->offset;
+ gst_sub_parse_chain (pad, buf);
+ }
+ ret = gst_pad_event_default (pad, event);
+ break;
+ }
+ case GST_EVENT_NEWSEGMENT:{
+ gst_event_unref (event);
+ break;
+ }
+ default:
+ ret = gst_pad_event_default (pad, event);
+ break;
+ }
+
+ gst_object_unref (self);
+
+ return ret;
+}
+
+
static GstStateChangeReturn
gst_sub_parse_change_state (GstElement * element, GstStateChange transition)
{
+ GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstSubParse *self = GST_SUBPARSE (element);
switch (transition) {
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- parser_state_dispose (&self->state);
- self->parser_type = GST_SUB_PARSE_FORMAT_UNKNOWN;
- break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
/* format detection will init the parser state */
self->offset = self->next_offset = 0;
break;
}
- return parent_class->change_state (element, transition);
+ ret = parent_class->change_state (element, transition);
+ if (ret == GST_STATE_CHANGE_FAILURE)
+ return ret;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ parser_state_dispose (&self->state);
+ self->parser_type = GST_SUB_PARSE_FORMAT_UNKNOWN;
+ break;
+ default:
+ break;
+ }
+
+ return ret;
}
#if 0
projects / platform / upstream / gstreamer.git / commitdiff