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tee: Store pad state directly inside the pads instead of GObject qdata

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This commit is contained in:
Sebastian Dröge 2012-04-16 10:05:02 +02:00
parent 655bfbf776
commit d2811b19f2
1 changed files with 60 additions and 43 deletions
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103
plugins/elements/gsttee.c
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@ -107,24 +107,66 @@ GST_STATIC_PAD_TEMPLATE ("src_%u",
GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
/* structure and quark to keep track of which pads have been pushed */
static GQuark push_data;
#define _do_init \
GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element"); \
push_data = g_quark_from_static_string ("tee-push-data");
GST_DEBUG_CATEGORY_INIT (gst_tee_debug, "tee", 0, "tee element");
#define gst_tee_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstTee, gst_tee, GST_TYPE_ELEMENT, _do_init);
static GParamSpec *pspec_last_message = NULL;
static GParamSpec *pspec_alloc_pad = NULL;
typedef struct
GType gst_tee_pad_get_type (void);
#define GST_TYPE_TEE_PAD \
(gst_tee_pad_get_type())
#define GST_TEE_PAD(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TEE_PAD, GstTeePad))
#define GST_TEE_PAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TEE_PAD, GstTeePadClass))
#define GST_IS_TEE_PAD(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TEE_PAD))
#define GST_IS_TEE_PAD_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TEE_PAD))
#define GST_TEE_PAD_CAST(obj) \
((GstTeePad *)(obj))
typedef struct _GstTeePad GstTeePad;
typedef struct _GstTeePadClass GstTeePadClass;
struct _GstTeePad
{
GstPad parent;
gboolean pushed;
GstFlowReturn result;
gboolean removed;
} PushData;
};
struct _GstTeePadClass
{
GstPadClass parent;
};
G_DEFINE_TYPE (GstTeePad, gst_tee_pad, GST_TYPE_PAD);
static void
gst_tee_pad_class_init (GstTeePadClass * klass)
{
}
static void
gst_tee_pad_reset (GstTeePad * pad)
{
pad->pushed = FALSE;
pad->result = GST_FLOW_NOT_LINKED;
pad->removed = FALSE;
}
static void
gst_tee_pad_init (GstTeePad * pad)
{
gst_tee_pad_reset (pad);
}
static GstPad *gst_tee_request_new_pad (GstElement * element,
GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
@ -295,7 +337,6 @@ gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
GstTee *tee;
GstPadMode mode;
gboolean res;
PushData *data;
tee = GST_TEE (element);
@ -304,19 +345,13 @@ gst_tee_request_new_pad (GstElement * element, GstPadTemplate * templ,
GST_OBJECT_LOCK (tee);
name = g_strdup_printf ("src_%u", tee->pad_counter++);
srcpad = gst_pad_new_from_template (templ, name);
srcpad = GST_PAD_CAST (g_object_new (GST_TYPE_TEE_PAD,
"name", name, "direction", templ->direction, "template", templ,
NULL));
g_free (name);
mode = tee->sink_mode;
/* install the data, we automatically free it when the pad is disposed because
* of _release_pad or when the element goes away. */
data = g_new0 (PushData, 1);
data->pushed = FALSE;
data->result = GST_FLOW_NOT_LINKED;
data->removed = FALSE;
g_object_set_qdata_full (G_OBJECT (srcpad), push_data, data, g_free);
GST_OBJECT_UNLOCK (tee);
switch (mode) {
@ -370,7 +405,6 @@ static void
gst_tee_release_pad (GstElement * element, GstPad * pad)
{
GstTee *tee;
PushData *data;
gboolean changed = FALSE;
tee = GST_TEE (element);
@ -379,11 +413,9 @@ gst_tee_release_pad (GstElement * element, GstPad * pad)
/* wait for pending pad_alloc to finish */
GST_TEE_DYN_LOCK (tee);
data = g_object_get_qdata (G_OBJECT (pad), push_data);
GST_OBJECT_LOCK (tee);
/* mark the pad as removed so that future pad_alloc fails with NOT_LINKED. */
data->removed = TRUE;
GST_TEE_PAD_CAST (pad)->removed = TRUE;
if (tee->allocpad == pad) {
tee->allocpad = NULL;
changed = TRUE;
@ -550,15 +582,8 @@ gst_tee_do_push (GstTee * tee, GstPad * pad, gpointer data, gboolean is_list)
static void
clear_pads (GstPad * pad, GstTee * tee)
{
PushData *data;
data = g_object_get_qdata ((GObject *) pad, push_data);
/* the data must be there or we have a screwed up internal state */
g_assert (data != NULL);
data->pushed = FALSE;
data->result = GST_FLOW_NOT_LINKED;
GST_TEE_PAD_CAST (pad)->pushed = FALSE;
GST_TEE_PAD_CAST (pad)->result = GST_FLOW_NOT_LINKED;
}
static GstFlowReturn
@ -604,16 +629,10 @@ restart:
while (pads) {
GstPad *pad;
PushData *pdata;
pad = GST_PAD_CAST (pads->data);
/* get the private data, something is really wrong with the internal state
* when it is not there */
pdata = g_object_get_qdata ((GObject *) pad, push_data);
g_assert (pdata != NULL);
if (G_LIKELY (!pdata->pushed)) {
if (G_LIKELY (!GST_TEE_PAD_CAST (pad)->pushed)) {
/* not yet pushed, release lock and start pushing */
gst_object_ref (pad);
GST_OBJECT_UNLOCK (tee);
@ -627,15 +646,13 @@ restart:
gst_flow_get_name (ret));
GST_OBJECT_LOCK (tee);
/* keep track of which pad we pushed and the result value. We need to do
* this before we release the refcount on the pad, the PushData is
* destroyed when the last ref of the pad goes away. */
pdata->pushed = TRUE;
pdata->result = ret;
/* keep track of which pad we pushed and the result value */
GST_TEE_PAD_CAST (pad)->pushed = TRUE;
GST_TEE_PAD_CAST (pad)->result = ret;
gst_object_unref (pad);
} else {
/* already pushed, use previous return value */
ret = pdata->result;
ret = GST_TEE_PAD_CAST (pad)->result;
GST_LOG_OBJECT (tee, "pad already pushed with %s",
gst_flow_get_name (ret));
}