static GstStateChangeReturn
mpegpsmux_change_state (GstElement * element, GstStateChange transition)
{
/* control the collect pads */
MpegPsMux *mux = GST_MPEG_PSMUX (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_collect_pads_start (mux->collect);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_collect_pads_stop (mux->collect);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
default:
break;
}
return ret;
}
static GstStateChangeReturn
mpegtsmux_change_state (GstElement * element, GstStateChange transition)
{
MpegTsMux *mux = GST_MPEG_TSMUX (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_collect_pads_start (mux->collect);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_collect_pads_stop (mux->collect);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
if (mux->adapter)
gst_adapter_clear (mux->adapter);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_compare_change_state (GstElement * element, GstStateChange transition)
{
GstCompare *comp = GST_COMPARE (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_collect_pads_start (comp->cpads);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_collect_pads_stop (comp->cpads);
break;
default:
break;
}
ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state,
(element, transition), GST_STATE_CHANGE_SUCCESS);
if (ret != GST_STATE_CHANGE_SUCCESS)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_compare_reset (comp);
break;
default:
break;
}
return GST_STATE_CHANGE_SUCCESS;
}
static GstStateChangeReturn
gst_aggregator_change_state (GstElement * element, GstStateChange transition)
{
GstAggregator *aggregator = GST_AGGREGATOR (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_collect_pads_start (aggregator->collect);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
/* need to unblock the collectpads before calling the
* parent change_state so that streaming can finish */
gst_collect_pads_stop (aggregator->collect);
break;
default:
break;
}
ret =
GST_ELEMENT_CLASS (gst_aggregator_parent_class)->change_state (element,
transition);
switch (transition) {
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_interleave_change_state (GstElement * element, GstStateChange transition)
{
GstInterleave *self;
GstStateChangeReturn ret;
self = GST_INTERLEAVE (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
self->timestamp = 0;
self->offset = 0;
self->segment_pending = TRUE;
self->segment_position = 0;
self->segment_rate = 1.0;
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
gst_collect_pads_start (self->collect);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
/* Stop before calling the parent's state change function as
* GstCollectPads might take locks and we would deadlock in that
* case
*/
if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
gst_collect_pads_stop (self->collect);
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_pad_set_caps (self->src, NULL);
gst_caps_replace (&self->sinkcaps, NULL);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_frei0r_mixer_change_state (GstElement * element, GstStateChange transition)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (element);
GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (self);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_collect_pads_start (self->collect);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
/* Stop before calling the parent's state change function as
* GstCollectPads might take locks and we would deadlock in that
* case
*/
if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
gst_collect_pads_stop (self->collect);
ret =
GST_ELEMENT_CLASS (g_type_class_peek_parent (klass))->change_state
(element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_frei0r_mixer_reset (self);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static void
gst_smpte_init (GstSMPTE * smpte)
{
smpte->sinkpad1 =
gst_pad_new_from_static_template (&gst_smpte_sink1_template, "sink1");
gst_pad_set_setcaps_function (smpte->sinkpad1,
GST_DEBUG_FUNCPTR (gst_smpte_setcaps));
gst_pad_set_getcaps_function (smpte->sinkpad1,
GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad1);
smpte->sinkpad2 =
gst_pad_new_from_static_template (&gst_smpte_sink2_template, "sink2");
gst_pad_set_setcaps_function (smpte->sinkpad2,
GST_DEBUG_FUNCPTR (gst_smpte_setcaps));
gst_pad_set_getcaps_function (smpte->sinkpad2,
GST_DEBUG_FUNCPTR (gst_pad_proxy_getcaps));
gst_element_add_pad (GST_ELEMENT (smpte), smpte->sinkpad2);
smpte->srcpad =
gst_pad_new_from_static_template (&gst_smpte_src_template, "src");
gst_element_add_pad (GST_ELEMENT (smpte), smpte->srcpad);
smpte->collect = gst_collect_pads_new ();
gst_collect_pads_set_function (smpte->collect,
(GstCollectPadsFunction) GST_DEBUG_FUNCPTR (gst_smpte_collected), smpte);
gst_collect_pads_start (smpte->collect);
gst_collect_pads_add_pad (smpte->collect, smpte->sinkpad1,
sizeof (GstCollectData));
gst_collect_pads_add_pad (smpte->collect, smpte->sinkpad2,
sizeof (GstCollectData));
smpte->fps = DEFAULT_PROP_FPS;
smpte->type = DEFAULT_PROP_TYPE;
smpte->border = DEFAULT_PROP_BORDER;
smpte->depth = DEFAULT_PROP_DEPTH;
smpte->duration = DEFAULT_PROP_DURATION;
smpte->invert = DEFAULT_PROP_INVERT;
smpte->fps_num = 0;
smpte->fps_denom = 1;
}
static GstStateChangeReturn
gst_ffmpegmux_change_state (GstElement * element, GstStateChange transition)
{
GstFlowReturn ret;
GstFFMpegMux *ffmpegmux = (GstFFMpegMux *) (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_collect_pads_start (ffmpegmux->collect);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_collect_pads_stop (ffmpegmux->collect);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_tag_setter_reset_tags (GST_TAG_SETTER (ffmpegmux));
if (ffmpegmux->opened) {
ffmpegmux->opened = FALSE;
url_fclose (ffmpegmux->context->pb);
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
change_state (GstElement *element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstOmxBaseFilter21 *self;
GOmxCore *core;
int i;
self = GST_OMX_BASE_FILTER21(element);
core = self->gomx;
printf("begin: changing state %s -> %s\n",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
GST_INFO_OBJECT (self, "begin: changing state %s -> %s",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
switch (transition)
{
case GST_STATE_CHANGE_NULL_TO_READY:
g_omx_core_init (core);
if (core->omx_state != OMX_StateLoaded)
{
ret = GST_STATE_CHANGE_FAILURE;
goto leave;
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_collect_pads_start(self->collectpads);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_collect_pads_stop(self->collectpads);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
goto leave;
switch (transition)
{
case GST_STATE_CHANGE_PAUSED_TO_READY:
printf("Paused to ready\n");
g_mutex_lock (self->ready_lock);
if (self->ready)
{
/* unlock */
for (i = 0; i < NUM_INPUTS; i++){
g_omx_port_finish (self->in_port[i]);
}
g_omx_port_finish (self->out_port);
g_omx_core_stop (core);
g_omx_core_unload (core);
self->ready = FALSE;
}
g_mutex_unlock (self->ready_lock);
if (core->omx_state != OMX_StateLoaded &&
core->omx_state != OMX_StateInvalid)
{
ret = GST_STATE_CHANGE_FAILURE;
goto leave;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
g_omx_core_deinit (core);
break;
default:
break;
}
leave:
GST_LOG_OBJECT (self, "end");
return ret;
}
