diff --git a/gst/playback/gstplaysink.c b/gst/playback/gstplaysink.c
index ac70c68e72..1ec139da94 100644
--- a/gst/playback/gstplaysink.c
+++ b/gst/playback/gstplaysink.c
@@ -1002,10 +1002,19 @@ gen_video_chain (GstPlaySink * playsink, gboolean raw, gboolean async,
* need a lot of buffers as this consumes a lot of memory and we don't want
* too little because else we would be context switching too quickly. */
chain->queue = gst_element_factory_make ("queue", "vqueue");
- g_object_set (G_OBJECT (chain->queue), "max-size-buffers", 3,
- "max-size-bytes", 0, "max-size-time", (gint64) 0, NULL);
- gst_bin_add (bin, chain->queue);
- head = prev = chain->queue;
+ if (chain->queue == NULL) {
+ post_missing_element_message (playsink, "queue");
+ GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
+ (_("Missing element '%s' - check your GStreamer installation."),
+ "queue"), ("video rendering might be suboptimal"));
+ head = chain->sink;
+ prev = NULL;
+ } else {
+ g_object_set (G_OBJECT (chain->queue), "max-size-buffers", 3,
+ "max-size-bytes", 0, "max-size-time", (gint64) 0, NULL);
+ gst_bin_add (bin, chain->queue);
+ head = prev = chain->queue;
+ }
} else {
head = chain->sink;
prev = NULL;
@@ -1214,10 +1223,17 @@ gen_text_chain (GstPlaySink * playsink)
if (!(playsink->flags & GST_PLAY_FLAG_NATIVE_VIDEO)) {
/* make a little queue */
chain->queue = gst_element_factory_make ("queue", "vqueue");
- g_object_set (G_OBJECT (chain->queue), "max-size-buffers", 3,
- "max-size-bytes", 0, "max-size-time", (gint64) 0, NULL);
- gst_bin_add (bin, chain->queue);
- videosinkpad = gst_element_get_static_pad (chain->queue, "sink");
+ if (chain->queue == NULL) {
+ post_missing_element_message (playsink, "queue");
+ GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
+ (_("Missing element '%s' - check your GStreamer installation."),
+ "queue"), ("video rendering might be suboptimal"));
+ } else {
+ g_object_set (G_OBJECT (chain->queue), "max-size-buffers", 3,
+ "max-size-bytes", 0, "max-size-time", (gint64) 0, NULL);
+ gst_bin_add (bin, chain->queue);
+ videosinkpad = gst_element_get_static_pad (chain->queue, "sink");
+ }
chain->overlay =
gst_element_factory_make ("subtitleoverlay", "suboverlay");
@@ -1250,11 +1266,18 @@ gen_text_chain (GstPlaySink * playsink)
* thing we can do is insert an identity and ghost the src
* and sink pads. */
chain->identity = gst_element_factory_make ("identity", "tidentity");
- g_object_set (chain->identity, "signal-handoffs", FALSE, NULL);
- g_object_set (chain->identity, "silent", TRUE, NULL);
- gst_bin_add (bin, chain->identity);
- srcpad = gst_element_get_static_pad (chain->identity, "src");
- videosinkpad = gst_element_get_static_pad (chain->identity, "sink");
+ if (chain->identity == NULL) {
+ post_missing_element_message (playsink, "identity");
+ GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
+ (_("Missing element '%s' - check your GStreamer installation."),
+ "identity"), (NULL));
+ } else {
+ g_object_set (chain->identity, "signal-handoffs", FALSE, NULL);
+ g_object_set (chain->identity, "silent", TRUE, NULL);
+ gst_bin_add (bin, chain->identity);
+ srcpad = gst_element_get_static_pad (chain->identity, "src");
+ videosinkpad = gst_element_get_static_pad (chain->identity, "sink");
+ }
}
/* expose the ghostpads */
@@ -1362,8 +1385,17 @@ gen_audio_chain (GstPlaySink * playsink, gboolean raw, gboolean queue)
* visualisations */
GST_DEBUG_OBJECT (playsink, "adding audio queue");
chain->queue = gst_element_factory_make ("queue", "aqueue");
- gst_bin_add (bin, chain->queue);
- prev = head = chain->queue;
+ if (chain->queue == NULL) {
+ post_missing_element_message (playsink, "queue");
+ GST_ELEMENT_WARNING (playsink, CORE, MISSING_PLUGIN,
+ (_("Missing element '%s' - check your GStreamer installation."),
+ "queue"), ("audio playback and visualizations might not work"));
+ head = chain->sink;
+ prev = NULL;
+ } else {
+ gst_bin_add (bin, chain->queue);
+ prev = head = chain->queue;
+ }
} else {
head = chain->sink;
prev = NULL;
@@ -1660,6 +1692,8 @@ gen_vis_chain (GstPlaySink * playsink)
/* we're queuing raw audio here, we can remove this queue when we can disable
* async behaviour in the video sink. */
chain->queue = gst_element_factory_make ("queue", "visqueue");
+ if (chain->queue == NULL)
+ goto no_queue;
gst_bin_add (bin, chain->queue);
chain->conv = gst_element_factory_make ("audioconvert", "aconv");
@@ -1710,6 +1744,15 @@ gen_vis_chain (GstPlaySink * playsink)
return chain;
/* ERRORS */
+no_queue:
+ {
+ post_missing_element_message (playsink, "queue");
+ GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
+ (_("Missing element '%s' - check your GStreamer installation."),
+ "queue"), (NULL));
+ free_chain ((GstPlayChain *) chain);
+ return NULL;
+ }
no_audioconvert:
{
post_missing_element_message (playsink, "audioconvert");
@@ -2192,10 +2235,19 @@ gst_play_sink_request_pad (GstPlaySink * playsink, GstPlaySinkType type)
/* create tee when needed. This element will feed the audio sink chain
* and the vis chain. */
playsink->audio_tee = gst_element_factory_make ("tee", "audiotee");
- playsink->audio_tee_sink =
- gst_element_get_static_pad (playsink->audio_tee, "sink");
- gst_bin_add (GST_BIN_CAST (playsink), playsink->audio_tee);
- gst_element_set_state (playsink->audio_tee, GST_STATE_PAUSED);
+ if (playsink->audio_tee == NULL) {
+ post_missing_element_message (playsink, "tee");
+ GST_ELEMENT_ERROR (playsink, CORE, MISSING_PLUGIN,
+ (_("Missing element '%s' - check your GStreamer installation."),
+ "tee"), (NULL));
+ res = NULL;
+ break;
+ } else {
+ playsink->audio_tee_sink =
+ gst_element_get_static_pad (playsink->audio_tee, "sink");
+ gst_bin_add (GST_BIN_CAST (playsink), playsink->audio_tee);
+ gst_element_set_state (playsink->audio_tee, GST_STATE_PAUSED);
+ }
} else {
gst_element_set_state (playsink->audio_tee, GST_STATE_PAUSED);
}