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media: add signal to notify of pending state changes

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This commit is contained in:
Ognyan Tonchev 2014-01-21 12:01:25 +01:00 committed by Wim Taymans
parent 099a10f61f
commit 5eca958d5e
2 changed files with 18 additions and 1 deletions
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18
gst/rtsp-server/rtsp-media.c
View file

@ -157,6 +157,7 @@ enum
SIGNAL_REMOVED_STREAM,
SIGNAL_PREPARED,
SIGNAL_UNPREPARED,
SIGNAL_TARGET_STATE,
SIGNAL_NEW_STATE,
SIGNAL_LAST
};
@ -293,6 +294,11 @@ gst_rtsp_media_class_init (GstRTSPMediaClass * klass)
G_STRUCT_OFFSET (GstRTSPMediaClass, unprepared), NULL, NULL,
g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0, G_TYPE_NONE);
gst_rtsp_media_signals[SIGNAL_TARGET_STATE] =
g_signal_new ("target-state", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstRTSPMediaClass, new_state), NULL,
NULL, g_cclosure_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
gst_rtsp_media_signals[SIGNAL_NEW_STATE] =
g_signal_new ("new-state", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstRTSPMediaClass, new_state), NULL, NULL,
@ -1939,8 +1945,10 @@ start_preroll (GstRTSPMedia * media)
GST_INFO ("setting pipeline to PAUSED for media %p", media);
/* first go to PAUSED */
ret = gst_element_set_state (priv->pipeline, GST_STATE_PAUSED);
priv->target_state = GST_STATE_PAUSED;
g_signal_emit (media, gst_rtsp_media_signals[SIGNAL_TARGET_STATE], 0,
priv->target_state, NULL);
ret = gst_element_set_state (priv->pipeline, GST_STATE_PAUSED);
switch (ret) {
case GST_STATE_CHANGE_SUCCESS:
@ -2320,6 +2328,8 @@ gst_rtsp_media_unprepare (GstRTSPMedia * media)
GST_INFO ("unprepare media %p", media);
priv->target_state = GST_STATE_NULL;
g_signal_emit (media, gst_rtsp_media_signals[SIGNAL_TARGET_STATE], 0,
priv->target_state, NULL);
success = TRUE;
if (priv->status == GST_RTSP_MEDIA_STATUS_PREPARED) {
@ -2559,6 +2569,8 @@ gst_rtsp_media_suspend (GstRTSPMedia * media)
case GST_RTSP_SUSPEND_MODE_PAUSE:
GST_DEBUG ("media %p suspend to PAUSED", media);
priv->target_state = GST_STATE_PAUSED;
g_signal_emit (media, gst_rtsp_media_signals[SIGNAL_TARGET_STATE], 0,
priv->target_state, NULL);
ret = gst_element_set_state (priv->pipeline, GST_STATE_PAUSED);
if (ret == GST_STATE_CHANGE_FAILURE)
goto state_failed;
@ -2566,6 +2578,8 @@ gst_rtsp_media_suspend (GstRTSPMedia * media)
case GST_RTSP_SUSPEND_MODE_RESET:
GST_DEBUG ("media %p suspend to NULL", media);
priv->target_state = GST_STATE_NULL;
g_signal_emit (media, gst_rtsp_media_signals[SIGNAL_TARGET_STATE], 0,
priv->target_state, NULL);
ret = gst_element_set_state (priv->pipeline, GST_STATE_NULL);
if (ret == GST_STATE_CHANGE_FAILURE)
goto state_failed;
@ -2670,6 +2684,8 @@ media_set_pipeline_state_locked (GstRTSPMedia * media, GstState state)
} else {
GST_INFO ("state %s media %p", gst_element_state_get_name (state), media);
priv->target_state = state;
g_signal_emit (media, gst_rtsp_media_signals[SIGNAL_TARGET_STATE], 0,
priv->target_state, NULL);
/* when we are buffering, don't update the state yet, this will be done
* when buffering finishes */
if (priv->buffering) {

1
gst/rtsp-server/rtsp-media.h
View file

@ -134,6 +134,7 @@ struct _GstRTSPMediaClass {
void (*prepared) (GstRTSPMedia *media);
void (*unprepared) (GstRTSPMedia *media);
void (*target_state) (GstRTSPMedia *media, GstState state);
void (*new_state) (GstRTSPMedia *media, GstState state);
/*< private >*/