gst_pad_set_pad_template (pad, NULL);
+ if (pad->block_destroy_data && pad->block_data) {
+ pad->block_destroy_data (pad->block_data);
+ pad->block_data = NULL;
+ }
+
G_OBJECT_CLASS (parent_class)->dispose (object);
}
}
/**
- * gst_pad_set_blocked_async:
+ * gst_pad_set_blocked_async_full:
* @pad: the #GstPad to block or unblock
* @blocked: boolean indicating whether the pad should be blocked or unblocked
* @callback: #GstPadBlockCallback that will be called when the
* operation succeeds
* @user_data: user data passed to the callback
+ * @destroy_data: #GDestroyNotify for user_data
*
* Blocks or unblocks the dataflow on a pad. The provided callback
* is called when the operation succeeds; this happens right before the next
* wrong parameters were passed or the pad was already in the requested state.
*
* MT safe.
+ *
+ * Since: 0.10.23
*/
gboolean
-gst_pad_set_blocked_async (GstPad * pad, gboolean blocked,
- GstPadBlockCallback callback, gpointer user_data)
+gst_pad_set_blocked_async_full (GstPad * pad, gboolean blocked,
+ GstPadBlockCallback callback, gpointer user_data,
+ GDestroyNotify destroy_data)
{
gboolean was_blocked = FALSE;
GST_CAT_LOG_OBJECT (GST_CAT_SCHEDULING, pad, "blocking pad");
GST_OBJECT_FLAG_SET (pad, GST_PAD_BLOCKED);
+
+ if (pad->block_destroy_data && pad->block_data &&
+ pad->block_data != user_data)
+ pad->block_destroy_data (pad->block_data);
+
pad->block_callback = callback;
pad->block_data = user_data;
+ pad->block_destroy_data = destroy_data;
if (!callback) {
GST_CAT_LOG_OBJECT (GST_CAT_SCHEDULING, pad, "waiting for block");
GST_PAD_BLOCK_WAIT (pad);
GST_OBJECT_FLAG_UNSET (pad, GST_PAD_BLOCKED);
+ if (pad->block_destroy_data && pad->block_data &&
+ pad->block_data != user_data)
+ pad->block_destroy_data (pad->block_data);
+
pad->block_callback = callback;
pad->block_data = user_data;
+ pad->block_destroy_data = destroy_data;
GST_PAD_BLOCK_BROADCAST (pad);
if (!callback) {
}
/**
+ * gst_pad_set_blocked_async:
+ * @pad: the #GstPad to block or unblock
+ * @blocked: boolean indicating whether the pad should be blocked or unblocked
+ * @callback: #GstPadBlockCallback that will be called when the
+ * operation succeeds
+ * @user_data: user data passed to the callback
+ *
+ * Blocks or unblocks the dataflow on a pad. The provided callback
+ * is called when the operation succeeds; this happens right before the next
+ * attempt at pushing a buffer on the pad.
+ *
+ * This can take a while as the pad can only become blocked when real dataflow
+ * is happening.
+ * When the pipeline is stalled, for example in PAUSED, this can
+ * take an indeterminate amount of time.
+ * You can pass NULL as the callback to make this call block. Be careful with
+ * this blocking call as it might not return for reasons stated above.
+ *
+ * Returns: TRUE if the pad could be blocked. This function can fail if the
+ * wrong parameters were passed or the pad was already in the requested state.
+ *
+ * MT safe.
+ */
+gboolean
+gst_pad_set_blocked_async (GstPad * pad, gboolean blocked,
+ GstPadBlockCallback callback, gpointer user_data)
+{
+ return gst_pad_set_blocked_async_full (pad, blocked,
+ callback, user_data, NULL);
+}
+
+/**
* gst_pad_set_blocked:
* @pad: the #GstPad to block or unblock
* @blocked: boolean indicating we should block or unblock
GST_END_TEST;
+static void
+unblock_async_cb (GstPad * pad, gboolean blocked, gpointer user_data)
+{
+ gboolean *bool_user_data = (gboolean *) user_data;
+
+ /* here we should have blocked == 1 unblocked == 0 */
+ fail_unless (bool_user_data[0] == TRUE);
+ fail_unless (bool_user_data[1] == FALSE);
+
+ bool_user_data[1] = TRUE;
+}
+
+static void
+block_async_cb (GstPad * pad, gboolean blocked, gpointer user_data)
+{
+ gboolean *bool_user_data = (gboolean *) user_data;
+
+ /* here we should have blocked == 0 unblocked == 0 */
+ fail_unless (bool_user_data[0] == FALSE);
+ fail_unless (bool_user_data[1] == FALSE);
+
+ bool_user_data[0] = blocked;
+
+ gst_pad_set_blocked_async (pad, FALSE, unblock_async_cb, user_data);
+}
+
+GST_START_TEST (test_block_async)
+{
+ GstPad *pad;
+ /* we set data[0] = TRUE when the pad is blocked, data[1] = TRUE when it's
+ * unblocked */
+ gboolean data[2] = { FALSE, FALSE };
+
+ pad = gst_pad_new ("src", GST_PAD_SRC);
+ fail_unless (pad != NULL);
+
+ gst_pad_set_active (pad, TRUE);
+ gst_pad_set_blocked_async (pad, TRUE, block_async_cb, &data);
+
+ fail_unless (data[0] == FALSE);
+ fail_unless (data[1] == FALSE);
+ gst_pad_push (pad, gst_buffer_new ());
+
+ gst_object_unref (pad);
+}
+
+GST_END_TEST;
+
+#if 0
+static void
+block_async_second (GstPad * pad, gboolean blocked, gpointer user_data)
+{
+ gst_pad_set_blocked_async (pad, FALSE, unblock_async_cb, NULL);
+}
+
+static void
+block_async_first (GstPad * pad, gboolean blocked, gpointer user_data)
+{
+ static int n_calls = 0;
+ gboolean *bool_user_data = (gboolean *) user_data;
+
+ if (++n_calls > 1)
+ /* we expect this callback to be called only once */
+ g_warn_if_reached ();
+
+ *bool_user_data = blocked;
+
+ /* replace block_async_first with block_async_second so next time the pad is
+ * blocked the latter should be called */
+ gst_pad_set_blocked_async (pad, TRUE, block_async_second, NULL);
+
+ /* unblock temporarily, in the next push block_async_second should be called
+ */
+ gst_pad_push_event (pad, gst_event_new_flush_start ());
+}
+
+GST_START_TEST (test_block_async_replace_callback)
+{
+ GstPad *pad;
+ gboolean blocked;
+
+ pad = gst_pad_new ("src", GST_PAD_SRC);
+ fail_unless (pad != NULL);
+ gst_pad_set_active (pad, TRUE);
+
+ gst_pad_set_blocked_async (pad, TRUE, block_async_first, &blocked);
+ blocked = FALSE;
+
+ gst_pad_push (pad, gst_buffer_new ());
+ fail_unless (blocked == TRUE);
+ /* block_async_first flushes to unblock */
+ gst_pad_push_event (pad, gst_event_new_flush_stop ());
+
+ /* push again, this time block_async_second should be called */
+ gst_pad_push (pad, gst_buffer_new ());
+ fail_unless (blocked == TRUE);
+
+ gst_object_unref (pad);
+}
+
+GST_END_TEST;
+#endif
+
+static void
+block_async_full_destroy (gpointer user_data)
+{
+ gint *state = (gint *) user_data;
+
+ fail_unless (*state < 2);
+
+ *state = 2;
+}
+
+static void
+block_async_full_cb (GstPad * pad, gboolean blocked, gpointer user_data)
+{
+ *(gint *) user_data = (gint) blocked;
+
+ gst_pad_push_event (pad, gst_event_new_flush_start ());
+}
+
+GST_START_TEST (test_block_async_full_destroy)
+{
+ GstPad *pad;
+ /* 0 = unblocked, 1 = blocked, 2 = destroyed */
+ gint state = 0;
+
+ pad = gst_pad_new ("src", GST_PAD_SRC);
+ fail_unless (pad != NULL);
+ gst_pad_set_active (pad, TRUE);
+
+ gst_pad_set_blocked_async_full (pad, TRUE, block_async_full_cb,
+ &state, block_async_full_destroy);
+ fail_unless (state == 0);
+
+ gst_pad_push (pad, gst_buffer_new ());
+ /* block_async_full_cb sets state to 1 and then flushes to unblock temporarily
+ */
+ fail_unless (state == 1);
+ gst_pad_push_event (pad, gst_event_new_flush_stop ());
+
+ /* call with the same user_data, should not call the destroy_notify function
+ */
+ gst_pad_set_blocked_async_full (pad, TRUE, block_async_full_cb,
+ &state, block_async_full_destroy);
+ fail_unless (state == 1);
+
+ /* now change user_data (to NULL in this case) so destroy_notify should be
+ * called */
+ gst_pad_set_blocked_async_full (pad, FALSE, block_async_full_cb,
+ NULL, block_async_full_destroy);
+ fail_unless (state == 2);
+
+ gst_object_unref (pad);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (test_block_async_full_destroy_dispose)
+{
+ GstPad *pad;
+ /* 0 = unblocked, 1 = blocked, 2 = destroyed */
+ gint state = 0;
+
+ pad = gst_pad_new ("src", GST_PAD_SRC);
+ fail_unless (pad != NULL);
+ gst_pad_set_active (pad, TRUE);
+
+ gst_pad_set_blocked_async_full (pad, TRUE, block_async_full_cb,
+ &state, block_async_full_destroy);
+
+ gst_pad_push (pad, gst_buffer_new ());
+ /* block_async_full_cb sets state to 1 and then flushes to unblock temporarily
+ */
+ fail_unless_equals_int (state, 1);
+ gst_pad_push_event (pad, gst_event_new_flush_stop ());
+
+ /* gst_pad_dispose calls the destroy_notify function if necessary */
+ gst_object_unref (pad);
+
+ fail_unless_equals_int (state, 2);
+}
+
+GST_END_TEST;
+
static Suite *
gst_pad_suite (void)
{
tcase_add_test (tc_chain, test_src_unref_unlink);
tcase_add_test (tc_chain, test_sink_unref_unlink);
tcase_add_test (tc_chain, test_get_caps_must_be_copy);
+ tcase_add_test (tc_chain, test_block_async);
+#if 0
+ tcase_add_test (tc_chain, test_block_async_replace_callback);
+#endif
+ tcase_add_test (tc_chain, test_block_async_full_destroy);
+ tcase_add_test (tc_chain, test_block_async_full_destroy_dispose);
return s;
}
projects / platform / upstream / gstreamer.git / commitdiff