<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style></style></head><body lang=DE link=blue vlink=purple><div class=WordSection1>Does it helps?<o:p></o:p><o:p> </o:p><o:p> </o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>Von: gstreamer-devel-bounces+bernhard.graaf=gmx.de@lists.freedesktop.org [mailto:gstreamer-devel-bounces+bernhard.graaf=gmx.de@lists.freedesktop.org] Im Auftrag von Jim Gesendet: Mittwoch, 20. Februar 2013 15:41 An: 'Discussion of the development of and with GStreamer' Betreff: RE: Properly freeing resources<o:p></o:p></div></div><o:p> </o:p>Thanks I’ll give that a try!<o:p></o:p><o:p> </o:p>Jim<o:p></o:p><a name="_MailEndCompose"></a><o:p> </o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>From: <a href="mailto:gstreamer-devel-bounces+restlessmindsstudio=gmail.com@lists.freedesktop.org">gstreamer-devel-bounces+restlessmindsstudio=gmail.com@lists.freedesktop.org</a> [<a href="mailto:gstreamer-devel-bounces+restlessmindsstudio=gmail.com@lists.freedesktop.org">mailto:gstreamer-devel-bounces+restlessmindsstudio=gmail.com@lists.freedesktop.org</a>] On Behalf Of Bernhard Graaf Sent: Tuesday, February 19, 2013 11:38 PM To: 'Discussion of the development of and with GStreamer' Subject: AW: Properly freeing resources<o:p></o:p></div></div><o:p> </o:p>I’ve found a small mismatch:<o:p></o:p>The ‘gst_object_unref(streamData->bus)’ should be called after init the signal bus, not before sending a new video.<o:p></o:p><o:p> </o:p>Hope that helps<o:p></o:p>Bernhard<o:p></o:p><o:p> </o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>Von: <a href="mailto:gstreamer-devel-bounces+bernhard.graaf=gmx.de@lists.freedesktop.org">gstreamer-devel-bounces+bernhard.graaf=gmx.de@lists.freedesktop.org</a> [<a href="mailto:gstreamer-devel-bounces+bernhard.graaf=gmx.de@lists.freedesktop.org">mailto:gstreamer-devel-bounces+bernhard.graaf=gmx.de@lists.freedesktop.org</a>] Im Auftrag von Jim Gesendet: Dienstag, 19. Februar 2013 19:03 An: <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> Betreff: Properly freeing resources<o:p></o:p></div></div><o:p> </o:p>Hi Everyone,<o:p></o:p>I’ve been watching the memory usage of my C application that’s using Gstreamer 0.10.36 and notice the allocated memory (according to the top command) keeps increasing slowly over time. This is only happening while Gstreamer is playing a video. When the application is idle, not using Gstreamer, the memory usage does not increase. I’m wondering if I’m doing something wrong with how I’m using the Gstreamer library.<o:p></o:p><o:p> </o:p>The application is basically a media player that provides the user with a list of videos to play. At any time the user can switch to a different video. Every time it starts playing another video, it goes through the following initialization:<o:p></o:p><o:p> </o:p> // Create the pipeline and its elements<o:p></o:p> streamData->pipeline = gst_pipeline_new("my-pipeline");<o:p></o:p> streamData->fileSrc = gst_element_factory_make("filesrc", "fileSrc");<o:p></o:p> streamData->demux = gst_element_factory_make("tsdemux", "demux");<o:p></o:p> streamData->videoQueue = gst_element_factory_make("queue", "videoQueue");<o:p></o:p> streamData->audioQueue = gst_element_factory_make("queue", "audioQueue");<o:p></o:p> streamData->videoDecoder = gst_element_factory_make("vpudec", "videoDecoder");<o:p></o:p> streamData->videoSink = gst_element_factory_make("mfw_v4lsink", "videoSink");<o:p></o:p> streamData->audioDecoder = gst_element_factory_make("mfw_mp3decoder", "audioDecoder");<o:p></o:p> streamData->volumeFilter = gst_element_factory_make("volume", "volume");<o:p></o:p> streamData->audioSink = gst_element_factory_make("alsasink", "audioSink");<o:p></o:p><o:p> </o:p> if (!streamData->pipeline || !streamData->fileSrc || !streamData->demux || !streamData->videoQueue ||<o:p></o:p> !streamData->audioQueue || !streamData->videoDecoder || !streamData->videoSink ||<o:p></o:p> !streamData->audioDecoder || !streamData->volumeFilter || !streamData->audioSink)<o:p></o:p> {<o:p></o:p> g_printerr("Not all elements could be created.\n");<o:p></o:p> return;<o:p></o:p> }<o:p></o:p><o:p> </o:p> gst_bin_add_many(GST_BIN(streamData->pipeline), streamData->fileSrc, streamData->demux, streamData->videoQueue,<o:p></o:p> streamData->audioQueue, streamData->videoDecoder, streamData->videoSink, streamData->audioDecoder,<o:p></o:p> streamData->volumeFilter, streamData->audioSink, NULL);<o:p></o:p> if (!gst_element_link(streamData->fileSrc, streamData->demux))<o:p></o:p> {<o:p></o:p> g_printerr("Elements could not be linked\n");<o:p></o:p> gst_object_unref(streamData->pipeline);<o:p></o:p> return;<o:p></o:p> }<o:p></o:p><o:p> </o:p> if (!gst_element_link_many(streamData->videoQueue, streamData->videoDecoder, streamData->videoSink, NULL))<o:p></o:p> {<o:p></o:p> g_printerr("Elements could not be linked\n");<o:p></o:p> gst_object_unref(streamData->pipeline);<o:p></o:p> return;<o:p></o:p> }<o:p></o:p><o:p> </o:p> if (!gst_element_link_many(streamData->audioQueue, streamData->audioDecoder, streamData->volumeFilter, streamData->audioSink, NULL))<o:p></o:p> {<o:p></o:p> g_printerr("Elements could not be linked\n");<o:p></o:p> gst_object_unref(streamData->pipeline);<o:p></o:p> return;<o:p></o:p> }<o:p></o:p><o:p> </o:p> g_object_set(G_OBJECT(streamData->videoQueue), "max-size-buffers", 0, NULL);<o:p></o:p> g_object_set(G_OBJECT(streamData->videoQueue), "max-size-time", 0, NULL);<o:p></o:p> g_object_set(G_OBJECT(streamData->audioQueue), "max-size-buffers", 0, NULL);<o:p></o:p> g_object_set(G_OBJECT(streamData->audioQueue), "max-size-time", 0, NULL);<o:p></o:p><o:p> </o:p> g_signal_connect(streamData->demux, "pad-added", G_CALLBACK(pad_added_handler), streamData);<o:p></o:p><o:p> </o:p> // Retrieve pipeline signal bus<o:p></o:p> streamData->bus = gst_pipeline_get_bus(GST_PIPELINE(streamData->pipeline));<o:p></o:p> streamData->busWatchId = gst_bus_add_watch(streamData->bus, (GstBusFunc)handle_message, streamData);<o:p></o:p><o:p> </o:p><o:p> </o:p>Before switching to a another video, the following cleanup is done:<o:p></o:p><o:p> </o:p> gst_object_unref(streamData->bus);<o:p></o:p> gst_element_set_state(streamData->pipeline, GST_STATE_NULL);<o:p></o:p> gst_object_unref(streamData->pipeline);<o:p></o:p><o:p> </o:p>Is this all the cleanup I need to do before creating a new pipeline or is there something else?<o:p></o:p><o:p> </o:p>Thanks,<o:p></o:p>Jim<o:p></o:p></div></body></html>