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baseparse: refactor state reset

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This commit is contained in:
Mark Nauwelaerts 2010-09-21 09:59:56 +02:00
parent ad95a79de3
commit 80646f5555
1 changed files with 79 additions and 54 deletions
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133
gst/audioparsers/gstbaseparse.c
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@ -281,6 +281,10 @@ gst_base_parse_get_type (void)
static void gst_base_parse_finalize (GObject * object);
static GstStateChangeReturn gst_base_parse_change_state (GstElement * element,
GstStateChange transition);
static void gst_base_parse_reset (GstBaseParse * parse);
static gboolean gst_base_parse_sink_activate (GstPad * sinkpad);
static gboolean gst_base_parse_sink_activate_push (GstPad * pad,
gboolean active);
@ -351,12 +355,17 @@ static void
gst_base_parse_class_init (GstBaseParseClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GstBaseParsePrivate));
parent_class = g_type_class_peek_parent (klass);
gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_base_parse_finalize);
gstelement_class = (GstElementClass *) klass;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_base_parse_change_state);
/* Default handlers */
klass->check_valid_frame = gst_base_parse_check_frame;
klass->parse_frame = gst_base_parse_parse_frame;
@ -412,20 +421,58 @@ gst_base_parse_init (GstBaseParse * parse, GstBaseParseClass * bclass)
parse->parse_lock = g_mutex_new ();
parse->adapter = gst_adapter_new ();
parse->pending_segment = NULL;
parse->close_segment = NULL;
parse->priv->pad_mode = GST_ACTIVATE_NONE;
parse->priv->duration = -1;
parse->priv->min_frame_size = 1;
parse->priv->passthrough = FALSE;
parse->priv->discont = FALSE;
parse->priv->flushing = FALSE;
parse->priv->offset = 0;
/* init state */
gst_base_parse_reset (parse);
GST_DEBUG_OBJECT (parse, "init ok");
}
static void
gst_base_parse_reset (GstBaseParse * parse)
{
GST_OBJECT_LOCK (parse);
gst_segment_init (&parse->segment, GST_FORMAT_TIME);
parse->priv->duration = -1;
parse->priv->min_frame_size = 1;
parse->priv->discont = TRUE;
parse->priv->flushing = FALSE;
parse->priv->offset = 0;
parse->priv->sync_offset = 0;
parse->priv->update_interval = 50;
parse->priv->fps_num = parse->priv->fps_den = 0;
parse->priv->frame_duration = GST_CLOCK_TIME_NONE;
parse->priv->seekable = GST_BASE_PARSE_SEEK_DEFAULT;
parse->priv->bitrate = 0;
parse->priv->framecount = 0;
parse->priv->bytecount = 0;
parse->priv->acc_duration = 0;
parse->priv->estimated_duration = -1;
parse->priv->next_ts = 0;
parse->priv->passthrough = FALSE;
parse->priv->post_min_bitrate = TRUE;
parse->priv->post_avg_bitrate = TRUE;
parse->priv->post_max_bitrate = TRUE;
parse->priv->min_bitrate = G_MAXUINT;
parse->priv->max_bitrate = 0;
parse->priv->avg_bitrate = 0;
parse->priv->posted_avg_bitrate = 0;
if (parse->pending_segment)
gst_event_unref (parse->pending_segment);
g_list_foreach (parse->priv->pending_events, (GFunc) gst_mini_object_unref,
NULL);
g_list_free (parse->priv->pending_events);
parse->priv->pending_events = NULL;
if (parse->priv->cache) {
gst_buffer_unref (parse->priv->cache);
parse->priv->cache = NULL;
}
GST_OBJECT_UNLOCK (parse);
}
/**
* gst_base_parse_check_frame:
@ -1672,42 +1719,6 @@ gst_base_parse_activate (GstBaseParse * parse, gboolean active)
if (active) {
if (parse->priv->pad_mode == GST_ACTIVATE_NONE && klass->start)
result = klass->start (parse);
GST_OBJECT_LOCK (parse);
gst_segment_init (&parse->segment, GST_FORMAT_TIME);
parse->priv->duration = -1;
parse->priv->discont = TRUE;
parse->priv->flushing = FALSE;
parse->priv->offset = 0;
parse->priv->sync_offset = 0;
parse->priv->update_interval = 50;
parse->priv->fps_num = parse->priv->fps_den = 0;
parse->priv->frame_duration = GST_CLOCK_TIME_NONE;
parse->priv->seekable = GST_BASE_PARSE_SEEK_DEFAULT;
parse->priv->bitrate = 0;
parse->priv->framecount = 0;
parse->priv->bytecount = 0;
parse->priv->acc_duration = 0;
parse->priv->estimated_duration = -1;
parse->priv->next_ts = 0;
parse->priv->passthrough = FALSE;
parse->priv->post_min_bitrate = TRUE;
parse->priv->post_avg_bitrate = TRUE;
parse->priv->post_max_bitrate = TRUE;
parse->priv->min_bitrate = G_MAXUINT;
parse->priv->max_bitrate = 0;
parse->priv->avg_bitrate = 0;
parse->priv->posted_avg_bitrate = 0;
if (parse->pending_segment)
gst_event_unref (parse->pending_segment);
parse->pending_segment =
gst_event_new_new_segment (FALSE, parse->segment.rate,
parse->segment.format,
parse->segment.start, parse->segment.stop, parse->segment.last_stop);
GST_OBJECT_UNLOCK (parse);
} else {
/* We must make sure streaming has finished before resetting things
* and calling the ::stop vfunc */
@ -1717,16 +1728,6 @@ gst_base_parse_activate (GstBaseParse * parse, gboolean active)
if (parse->priv->pad_mode != GST_ACTIVATE_NONE && klass->stop)
result = klass->stop (parse);
g_list_foreach (parse->priv->pending_events, (GFunc) gst_mini_object_unref,
NULL);
g_list_free (parse->priv->pending_events);
parse->priv->pending_events = NULL;
if (parse->priv->cache) {
gst_buffer_unref (parse->priv->cache);
parse->priv->cache = NULL;
}
parse->priv->pad_mode = GST_ACTIVATE_NONE;
}
GST_DEBUG_OBJECT (parse, "activate: %d", result);
@ -1784,6 +1785,9 @@ gst_base_parse_sink_activate_pull (GstPad * sinkpad, gboolean active)
if (result) {
if (active) {
parse->pending_segment = gst_event_new_new_segment (FALSE,
parse->segment.rate, parse->segment.format,
parse->segment.start, parse->segment.stop, parse->segment.last_stop);
result &= gst_pad_start_task (sinkpad,
(GstTaskFunction) gst_base_parse_loop, sinkpad);
} else {
@ -2418,3 +2422,24 @@ gst_base_parse_sink_setcaps (GstPad * pad, GstCaps * caps)
return res && gst_pad_set_caps (pad, caps);
}
static GstStateChangeReturn
gst_base_parse_change_state (GstElement * element, GstStateChange transition)
{
GstBaseParse *parse;
GstStateChangeReturn result;
parse = GST_BASE_PARSE (element);
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_base_parse_reset (parse);
break;
default:
break;
}
return result;
}