// LogStateChanges
static void LogStateChanges(GstStateChange transition)
{
GA_LOGVERB(
"Logging state change: %s -> %s",
gst_element_state_get_name(GST_STATE_TRANSITION_CURRENT(transition)),
gst_element_state_get_name(GST_STATE_TRANSITION_NEXT(transition)));
}
static GstStateChangeReturn
gst_base_camera_src_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstBaseCameraSrc *self = GST_BASE_CAMERA_SRC (element);
GST_DEBUG_OBJECT (self, "%d -> %d",
GST_STATE_TRANSITION_CURRENT (transition),
GST_STATE_TRANSITION_NEXT (transition));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!construct_pipeline (self))
return GST_STATE_CHANGE_FAILURE;
if (self->preview_pipeline == NULL) {
/* failed to create preview pipeline, fail state change */
return GST_STATE_CHANGE_FAILURE;
}
if (self->preview_caps) {
GST_DEBUG_OBJECT (self,
"Setting preview pipeline caps %" GST_PTR_FORMAT,
self->preview_caps);
gst_camerabin_preview_set_caps (self->preview_pipeline,
self->preview_caps);
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!setup_pipeline (self))
return GST_STATE_CHANGE_FAILURE;
/* without this the preview pipeline will not post buffer
* messages on the pipeline */
gst_element_set_state (self->preview_pipeline->pipeline,
GST_STATE_PLAYING);
if (self->auto_start)
g_signal_emit_by_name (G_OBJECT (self), "start-capture", NULL);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_element_set_state (self->preview_pipeline->pipeline, GST_STATE_READY);
if (self->auto_start)
g_signal_emit_by_name (G_OBJECT (self), "stop-capture", NULL);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_element_set_state (self->preview_pipeline->pipeline, GST_STATE_NULL);
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_base_camera_src_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstBaseCameraSrc *self = GST_BASE_CAMERA_SRC (element);
GST_DEBUG_OBJECT (self, "%d -> %d",
GST_STATE_TRANSITION_CURRENT (transition),
GST_STATE_TRANSITION_NEXT (transition));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!construct_pipeline (self))
return GST_STATE_CHANGE_FAILURE;
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!setup_pipeline (self))
return GST_STATE_CHANGE_FAILURE;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
return ret;
}
static GstStateChangeReturn
gst_base_camera_src_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstBaseCameraBinSrc *self = GST_BASE_CAMERA_SRC (element);
GST_DEBUG_OBJECT (self, "%d -> %d",
GST_STATE_TRANSITION_CURRENT (transition),
GST_STATE_TRANSITION_NEXT (transition));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!construct_pipeline (self))
return GST_STATE_CHANGE_FAILURE;
/* recreate the preview pipeline */
if (self->preview_pipeline && self->preview_filter_changed) {
gst_camerabin_destroy_preview_pipeline (self->preview_pipeline);
self->preview_pipeline = NULL;
}
if (self->preview_pipeline == NULL)
self->preview_pipeline =
gst_camerabin_create_preview_pipeline (GST_ELEMENT_CAST (self),
self->preview_filter);
g_assert (self->preview_pipeline != NULL);
self->preview_filter_changed = FALSE;
if (self->preview_caps) {
GST_DEBUG_OBJECT (self,
"Setting preview pipeline caps %" GST_PTR_FORMAT,
self->preview_caps);
gst_camerabin_preview_set_caps (self->preview_pipeline,
self->preview_caps);
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!setup_pipeline (self))
return GST_STATE_CHANGE_FAILURE;
gst_element_set_state (self->preview_pipeline->pipeline,
GST_STATE_PLAYING);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
gst_element_set_state (self->preview_pipeline->pipeline, GST_STATE_NULL);
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_gl_src_bin_change_state (GstElement * element, GstStateChange transition)
{
GstGLSrcBin *self = GST_GL_SRC_BIN (element);
GstGLSrcBinClass *klass = GST_GL_SRC_BIN_GET_CLASS (self);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GST_DEBUG ("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:
if (!self->src) {
if (klass->create_element)
self->src = klass->create_element ();
if (!self->src) {
g_signal_emit (element,
gst_gl_src_bin_signals[SIGNAL_CREATE_ELEMENT], 0, &self->src);
if (self->src && g_object_is_floating (self->src))
gst_object_ref_sink (self->src);
}
if (!self->src) {
GST_ERROR_OBJECT (element, "Failed to retrieve element");
return GST_STATE_CHANGE_FAILURE;
}
if (!_connect_src_element (self))
return GST_STATE_CHANGE_FAILURE;
}
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_v4l2sink_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstV4l2Sink *v4l2sink = GST_V4L2SINK (element);
GST_DEBUG_OBJECT (v4l2sink, "%d -> %d",
GST_STATE_TRANSITION_CURRENT (transition),
GST_STATE_TRANSITION_NEXT (transition));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
/* open the device */
if (!gst_v4l2_object_start (v4l2sink->v4l2object))
return GST_STATE_CHANGE_FAILURE;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (v4l2sink->state == STATE_STREAMING) {
if (!gst_v4l2_object_stop_streaming (v4l2sink->v4l2object)) {
return GST_STATE_CHANGE_FAILURE;
}
v4l2sink->state = STATE_PENDING_STREAMON;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
if (NULL != v4l2sink->pool)
gst_v4l2_buffer_pool_destroy (v4l2sink->pool);
v4l2sink->pool = NULL;
/* close the device */
if (!gst_v4l2_object_stop (v4l2sink->v4l2object))
return GST_STATE_CHANGE_FAILURE;
v4l2sink->state = STATE_OFF;
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_gl_base_mixer_change_state (GstElement * element, GstStateChange transition)
{
GstGLBaseMixer *mix = GST_GL_BASE_MIXER (element);
GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GST_DEBUG_OBJECT (mix, "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:
if (!gst_gl_ensure_element_data (element, &mix->display,
&mix->priv->other_context))
return GST_STATE_CHANGE_FAILURE;
gst_gl_display_filter_gl_api (mix->display, mix_class->supported_gl_api);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
if (mix->priv->other_context) {
gst_object_unref (mix->priv->other_context);
mix->priv->other_context = NULL;
}
if (mix->display) {
gst_object_unref (mix->display);
mix->display = NULL;
}
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
change_state(GstElement *element, GstStateChange transition)
{
GstStateChangeReturn ret;
struct obj *self;
self = (struct obj *)element;
GST_DEBUG_OBJECT (self, "State change: %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:
self->initialized = false;
break;
default:
break;
}
ret = parent_class->change_state(element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
if (self->av_ctx) {
gst_av_codec_close(self->av_ctx);
av_freep(&self->av_ctx->extradata);
av_freep(&self->av_ctx);
}
break;
default:
break;
}
GST_DEBUG_OBJECT (self, "State_change return: %s",
gst_element_state_change_return_get_name (ret));
return ret;
}
static GstStateChangeReturn
gst_gl_test_src_change_state (GstElement * element, GstStateChange transition)
{
GstGLTestSrc *src = GST_GL_TEST_SRC (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GST_DEBUG_OBJECT (src, "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:
if (!gst_gl_ensure_element_data (element, &src->display,
&src->other_context))
return GST_STATE_CHANGE_FAILURE;
gst_gl_display_filter_gl_api (src->display, SUPPORTED_GL_APIS);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
if (src->other_context) {
gst_object_unref (src->other_context);
src->other_context = NULL;
}
if (src->display) {
gst_object_unref (src->display);
src->display = NULL;
}
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_render_bridge_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstBufferClassSink *bcsink = GST_BCSINK (element);
GST_DEBUG_OBJECT (bcsink, "%d -> %d",
GST_STATE_TRANSITION_CURRENT (transition),
GST_STATE_TRANSITION_NEXT (transition));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:{
break;
}
default:{
break;
}
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:{
/* TODO stop streaming */
break;
}
case GST_STATE_CHANGE_READY_TO_NULL:{
g_signal_emit (bcsink, signals[SIG_CLOSE], 0);
if (bcsink->pool) {
gst_buffer_manager_dispose (bcsink->pool);
bcsink->pool = NULL;
}
break;
}
default:{
break;
}
}
GST_DEBUG_OBJECT (bcsink, "end");
return ret;
}
static GstStateChangeReturn
gst_gtk_base_sink_change_state (GstElement * element, GstStateChange transition)
{
GstGtkBaseSink *gtk_sink = GST_GTK_BASE_SINK (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GST_DEBUG_OBJECT (element, "changing state: %s => %s",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
{
GtkWindow *window = NULL;
GST_OBJECT_LOCK (gtk_sink);
if (gtk_sink->window)
window = g_object_ref (gtk_sink->window);
GST_OBJECT_UNLOCK (gtk_sink);
if (window)
gst_gtk_invoke_on_main ((GThreadFunc) gst_gtk_widget_show_all_and_unref,
window);
break;
}
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_OBJECT_LOCK (gtk_sink);
if (gtk_sink->widget)
gtk_gst_base_widget_set_buffer (gtk_sink->widget, NULL);
GST_OBJECT_UNLOCK (gtk_sink);
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_v4l2sink_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstV4l2Sink *v4l2sink = GST_V4L2SINK (element);
GST_DEBUG_OBJECT (v4l2sink, "%d -> %d",
GST_STATE_TRANSITION_CURRENT (transition),
GST_STATE_TRANSITION_NEXT (transition));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
/* open the device */
if (!gst_v4l2_object_open (v4l2sink->v4l2object))
return GST_STATE_CHANGE_FAILURE;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (!gst_v4l2_object_stop (v4l2sink->v4l2object))
return GST_STATE_CHANGE_FAILURE;
break;
case GST_STATE_CHANGE_READY_TO_NULL:
/* we need to call stop here too */
if (!gst_v4l2_object_stop (v4l2sink->v4l2object))
return GST_STATE_CHANGE_FAILURE;
/* close the device */
if (!gst_v4l2_object_close (v4l2sink->v4l2object))
return GST_STATE_CHANGE_FAILURE;
break;
default:
break;
}
return ret;
}
static GstStateChangeReturn
gst_ducati_viddec_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstDucatiVidDec *self = GST_DUCATIVIDDEC (element);
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:
if (!engine_open (self)) {
GST_ERROR_OBJECT (self, "could not open");
return GST_STATE_CHANGE_FAILURE;
}
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_READY_TO_NULL:
codec_delete (self);
engine_close (self);
break;
default:
break;
}
leave:
GST_LOG_OBJECT (self, "end");
return ret;
}
static GstStateChangeReturn
change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstOmxBaseSink *self;
self = GST_OMX_BASE_SINK (element);
GST_LOG_OBJECT (self, "begin");
GST_INFO_OBJECT (self, "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:
if (!self->initialized) {
if (!omx_init (self))
return GST_PAD_LINK_REFUSED;
self->initialized = TRUE;
}
g_omx_core_prepare (self->gomx);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
g_omx_core_start (self->gomx);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
g_omx_port_finish (self->in_port);
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_PLAYING_TO_PAUSED:
g_omx_port_pause (self->in_port);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
g_omx_core_stop (self->gomx);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
g_omx_core_unload (self->gomx);
break;
default:
break;
}
leave:
GST_LOG_OBJECT (self, "end");
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;
}
static GstStateChangeReturn
gst_camerabin_image_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstCameraBinImage *img = GST_CAMERABIN_IMAGE (element);
GST_DEBUG_OBJECT (element, "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:
if (!gst_camerabin_image_create_elements (img)) {
return GST_STATE_CHANGE_FAILURE;
}
/* Allow setting filename when image bin in READY state */
gst_element_set_locked_state (img->sink, TRUE);
GST_INFO_OBJECT (img, "locking imagebin->sink state to %s",
gst_element_state_get_name (GST_STATE (img->sink)));
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
if (!g_str_equal (img->filename->str, "")) {
GST_INFO_OBJECT (img, "preparing image with filename: %s",
img->filename->str);
gst_element_set_locked_state (img->sink, FALSE);
} else {
GST_INFO_OBJECT (img, "keep sink locked, we have no filename yet");
}
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
/* Set sink to NULL in order to write the file _now_ */
GST_INFO_OBJECT (img, "write image with filename: %s",
img->filename->str);
gst_element_set_locked_state (img->sink, TRUE);
gst_element_set_state (img->sink, GST_STATE_NULL);
g_string_assign (img->filename, "");
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
/* Write debug graph to file */
GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (GST_ELEMENT_PARENT (img)),
GST_DEBUG_GRAPH_SHOW_MEDIA_TYPE |
GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS, "imagebin.playing");
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_camerabin_image_destroy_elements (img);
break;
default:
break;
}
GST_DEBUG_OBJECT (element, "changed state: %s -> %s = %s",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)),
gst_element_state_change_return_get_name (ret));
return ret;
}
static GstStateChangeReturn
change_state (GstElement *element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstOmxBaseFilter *self;
GOmxCore *core;
self = GST_OMX_BASE_FILTER (element);
core = self->gomx;
GST_LOG_OBJECT (self, "begin");
GST_INFO_OBJECT (self, "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, self->omx_library, self->omx_component);
if (core->omx_state != OMX_StateLoaded)
{
ret = GST_STATE_CHANGE_FAILURE;
goto leave;
}
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:
g_mutex_lock (self->ready_lock);
if (self->ready)
{
/* unlock */
g_omx_port_finish (self->in_port);
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;
}
static GstStateChangeReturn
change_state (GstElement *element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstOmxBaseFilter *self;
self = GST_OMX_BASE_FILTER (element);
GST_LOG_OBJECT (self, "begin");
GST_INFO_OBJECT (self, "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 (self->gomx, self->omx_library, self->omx_component);
if (self->gomx->omx_error)
return GST_STATE_CHANGE_FAILURE;
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (self->initialized)
{
g_omx_port_finish (self->in_port);
g_omx_port_finish (self->out_port);
}
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition)
{
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (self->initialized)
{
g_omx_core_finish (self->gomx);
self->initialized = FALSE;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
g_omx_core_deinit (self->gomx);
if (self->gomx->omx_error)
return GST_STATE_CHANGE_FAILURE;
break;
default:
break;
}
GST_LOG_OBJECT (self, "end");
return ret;
}
static GstStateChangeReturn
gst_glimage_sink_change_state (GstElement * element, GstStateChange transition)
{
GstGLImageSink *glimage_sink;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GST_DEBUG ("changing state: %s => %s",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
glimage_sink = GST_GLIMAGE_SINK (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
g_atomic_int_set (&glimage_sink->to_quit, 0);
if (!glimage_sink->display) {
if (!gst_gl_ensure_display (glimage_sink, &glimage_sink->display))
return GST_STATE_CHANGE_FAILURE;
}
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
{
/* mark the redisplay_texture as unavailable (=0)
* to avoid drawing
*/
GST_GLIMAGE_SINK_LOCK (glimage_sink);
glimage_sink->redisplay_texture = 0;
if (glimage_sink->stored_buffer) {
gst_buffer_unref (glimage_sink->stored_buffer);
glimage_sink->stored_buffer = NULL;
}
GST_GLIMAGE_SINK_UNLOCK (glimage_sink);
if (glimage_sink->upload) {
gst_object_unref (glimage_sink->upload);
glimage_sink->upload = NULL;
}
glimage_sink->window_id = 0;
//but do not reset glimage_sink->new_window_id
if (glimage_sink->pool) {
gst_buffer_pool_set_active (glimage_sink->pool, FALSE);
gst_object_unref (glimage_sink->pool);
glimage_sink->pool = NULL;
}
GST_VIDEO_SINK_WIDTH (glimage_sink) = 1;
GST_VIDEO_SINK_HEIGHT (glimage_sink) = 1;
if (glimage_sink->context) {
GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context);
gst_gl_window_send_message (window,
GST_GL_WINDOW_CB (gst_glimage_sink_cleanup_glthread), glimage_sink);
gst_gl_window_set_resize_callback (window, NULL, NULL, NULL);
gst_gl_window_set_draw_callback (window, NULL, NULL, NULL);
gst_gl_window_set_close_callback (window, NULL, NULL, NULL);
gst_object_unref (window);
gst_object_unref (glimage_sink->context);
glimage_sink->context = NULL;
}
if (glimage_sink->display) {
gst_object_unref (glimage_sink->display);
glimage_sink->display = NULL;
}
break;
}
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
