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summary: fix xml in gstreamer 1) make clear distinction between loading xml that actually creates objects and loading...
Original commit message from CVS: summary: fix xml in gstreamer 1) make clear distinction between loading xml that actually creates objects and loading xml that just synchronizes properties with objects. moved most of gst_element_restore_thyself functionality to gst_xml_make_element. this new function name can change if it sucks. 2) many various fixes. createxml and runxml work now. 3) doc updates. 4) GstSignalObject is stil broken. i have no idea what it's supposed to do.
This commit is contained in:
Andy Wingo
parent
c51e7cd2fe
commit
d262bea863
20 changed files with 292 additions and 298 deletions
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@ -17,9 +17,9 @@
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<title>Turning GstElements into XML</title>
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<para>
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We create a simple pipeline and save it to disk with gst_xml_write (). The following
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code constructs an mp3 player pipeline with two threads and finaly writes it to disk.
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use this program with one argument: the mp3 file on disk.
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We create a simple pipeline and write it to stdout with gst_xml_write_file (). The following
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code constructs an mp3 player pipeline with two threads and then writes out the XML both to
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stdout and to a file. Use this program with one argument: the mp3 file on disk.
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</para>
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<programlisting>
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@ -31,7 +31,7 @@ gboolean playing;
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int
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main (int argc, char *argv[])
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{
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GstElement *filesrc, *audiosink, *queue, *queue2, *parse, *decode;
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GstElement *filesrc, *osssink, *queue, *queue2, *parse, *decode;
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GstElement *bin;
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GstElement *thread, *thread2;
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@ -61,40 +61,40 @@ main (int argc, char *argv[])
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queue2 = gst_elementfactory_make ("queue", "queue2");
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/* and an audio sink */
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audiosink = gst_elementfactory_make ("audiosink", "play_audio");
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g_assert (audiosink != NULL);
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osssink = gst_elementfactory_make ("osssink", "play_audio");
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g_assert (osssink != NULL);
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parse = gst_elementfactory_make ("mp3parse", "parse");
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decode = gst_elementfactory_make ("mpg123", "decode");
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decode = gst_elementfactory_make ("mad", "decode");
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g_assert (decode != NULL);
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/* add objects to the main bin */
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gst_bin_add (GST_BIN (bin), filesrc);
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gst_bin_add (GST_BIN (bin), queue);
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gst_bin_add (GST_BIN (thread), parse);
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gst_bin_add (GST_BIN (thread), decode);
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gst_bin_add (GST_BIN (thread), queue2);
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gst_bin_add (GST_BIN (thread2), audiosink);
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gst_bin_add (GST_BIN (thread2), osssink);
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gst_pad_connect (gst_element_get_pad (filesrc,"src"),
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gst_element_get_pad (queue,"sink"));
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gst_pad_connect (gst_element_get_pad (queue,"src"),
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gst_element_get_pad (parse,"sink"));
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gst_pad_connect (gst_element_get_pad (parse,"src"),
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gst_element_get_pad (decode,"sink"));
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gst_pad_connect (gst_element_get_pad (decode,"src"),
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gst_element_get_pad (queue2,"sink"));
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gst_pad_connect (gst_element_get_pad (queue2,"src"),
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gst_element_get_pad (audiosink,"sink"));
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gst_element_get_pad (osssink,"sink"));
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gst_bin_add (GST_BIN (bin), thread);
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gst_bin_add (GST_BIN (bin), thread2);
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// write the bin to disk
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xmlSaveFile ("xmlTest.gst", gst_xml_write (GST_ELEMENT (bin)));
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/* write the bin to stdout */
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gst_xml_write_file (GST_ELEMENT (bin), stdout);
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/* write the bin to a file */
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gst_xml_write_file (GST_ELEMENT (bin), fopen ("xmlTest.gst", "w"));
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exit (0);
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}
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@ -103,12 +103,12 @@ main (int argc, char *argv[])
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The most important line is:
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</para>
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<programlisting>
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xmlSaveFile ("xmlTest.gst", gst_xml_write (GST_ELEMENT (bin)));
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gst_xml_write_file (GST_ELEMENT (bin), stdout);
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</programlisting>
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<para>
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gst_xml_write () will turn the given element into and xmlDocPtr that
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can be saved with the xmlSaveFile () function found in the gnome-xml
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package. The result is an XML file named xmlTest.gst.
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gst_xml_write_file () will turn the given element into an xmlDocPtr that
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is then formatted and saved to a file. To save to disk, pass the result
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of a fopen(2) as the second argument.
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</para>
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<para>
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The complete element hierarchy will be saved along with the inter element
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@ -17,9 +17,9 @@
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<title>Turning GstElements into XML</title>
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<para>
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We create a simple pipeline and save it to disk with gst_xml_write (). The following
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code constructs an mp3 player pipeline with two threads and finaly writes it to disk.
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use this program with one argument: the mp3 file on disk.
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We create a simple pipeline and write it to stdout with gst_xml_write_file (). The following
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code constructs an mp3 player pipeline with two threads and then writes out the XML both to
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stdout and to a file. Use this program with one argument: the mp3 file on disk.
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</para>
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<programlisting>
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@ -31,7 +31,7 @@ gboolean playing;
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int
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main (int argc, char *argv[])
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{
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GstElement *filesrc, *audiosink, *queue, *queue2, *parse, *decode;
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GstElement *filesrc, *osssink, *queue, *queue2, *parse, *decode;
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GstElement *bin;
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GstElement *thread, *thread2;
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@ -61,40 +61,40 @@ main (int argc, char *argv[])
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queue2 = gst_elementfactory_make ("queue", "queue2");
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/* and an audio sink */
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audiosink = gst_elementfactory_make ("audiosink", "play_audio");
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g_assert (audiosink != NULL);
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osssink = gst_elementfactory_make ("osssink", "play_audio");
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g_assert (osssink != NULL);
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parse = gst_elementfactory_make ("mp3parse", "parse");
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decode = gst_elementfactory_make ("mpg123", "decode");
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decode = gst_elementfactory_make ("mad", "decode");
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g_assert (decode != NULL);
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/* add objects to the main bin */
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gst_bin_add (GST_BIN (bin), filesrc);
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gst_bin_add (GST_BIN (bin), queue);
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gst_bin_add (GST_BIN (thread), parse);
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gst_bin_add (GST_BIN (thread), decode);
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gst_bin_add (GST_BIN (thread), queue2);
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gst_bin_add (GST_BIN (thread2), audiosink);
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gst_bin_add (GST_BIN (thread2), osssink);
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gst_pad_connect (gst_element_get_pad (filesrc,"src"),
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gst_element_get_pad (queue,"sink"));
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gst_pad_connect (gst_element_get_pad (queue,"src"),
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gst_element_get_pad (parse,"sink"));
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gst_pad_connect (gst_element_get_pad (parse,"src"),
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gst_element_get_pad (decode,"sink"));
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gst_pad_connect (gst_element_get_pad (decode,"src"),
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gst_element_get_pad (queue2,"sink"));
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gst_pad_connect (gst_element_get_pad (queue2,"src"),
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gst_element_get_pad (audiosink,"sink"));
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gst_element_get_pad (osssink,"sink"));
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gst_bin_add (GST_BIN (bin), thread);
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gst_bin_add (GST_BIN (bin), thread2);
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// write the bin to disk
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xmlSaveFile ("xmlTest.gst", gst_xml_write (GST_ELEMENT (bin)));
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/* write the bin to stdout */
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gst_xml_write_file (GST_ELEMENT (bin), stdout);
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/* write the bin to a file */
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gst_xml_write_file (GST_ELEMENT (bin), fopen ("xmlTest.gst", "w"));
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exit (0);
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}
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@ -103,12 +103,12 @@ main (int argc, char *argv[])
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The most important line is:
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</para>
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<programlisting>
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xmlSaveFile ("xmlTest.gst", gst_xml_write (GST_ELEMENT (bin)));
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gst_xml_write_file (GST_ELEMENT (bin), stdout);
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</programlisting>
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<para>
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gst_xml_write () will turn the given element into and xmlDocPtr that
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can be saved with the xmlSaveFile () function found in the gnome-xml
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package. The result is an XML file named xmlTest.gst.
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gst_xml_write_file () will turn the given element into an xmlDocPtr that
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is then formatted and saved to a file. To save to disk, pass the result
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of a fopen(2) as the second argument.
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</para>
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<para>
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The complete element hierarchy will be saved along with the inter element
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@ -95,7 +95,7 @@ gst_play_have_type (GstElement *typefind, GstCaps *caps, GstElement *pipeline)
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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#ifndef GST_DISABLE_LOADSAVE
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xmlSaveFile("xmlTest.gst", gst_xml_write (GST_ELEMENT (pipeline)));
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gst_xml_write_file (GST_ELEMENT (pipeline), fopen ("xmlTest.gst", "w"));
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#endif
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}
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@ -182,7 +182,7 @@ int main(int argc,char *argv[])
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env_register_cp (channel_in->volenv, num_channels * 10.0 , 1.0 / num_channels); /* to end level */
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#ifndef GST_DISABLE_LOADSAVE
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xmlSaveFile("mixer.xml", gst_xml_write(GST_ELEMENT(main_bin)));
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gst_xml_write_file (GST_ELEMENT (main_bin), fopen ("mixer.xml", "w"));
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#endif
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/* start playing */
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@ -358,7 +358,7 @@ create_input_channel (int id, char* location)
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#endif
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#ifndef GST_DISABLE_LOADSAVE
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xmlSaveFile ("mixer.gst", gst_xml_write (new_element));
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gst_xml_write_file (GST_ELEMENT (new_element), fopen ("mixer.gst", "w"));
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#endif
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gst_bin_add (GST_BIN(channel->pipe), channel->volenv);
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@ -2,25 +2,27 @@
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#include <gst/gst.h>
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gboolean playing;
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xmlNsPtr ns;
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static void
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object_saved (GstObject *object, xmlNodePtr parent, gpointer data)
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{
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xmlNodePtr child;
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xmlNsPtr ns;
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/* i'm not sure why both of these Ns things are necessary, but they are */
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ns = xmlNewNs (NULL, "http://gstreamer.net/gst-test/1.0/", "test");
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child = xmlNewChild(parent, ns, "comment", NULL);
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xmlNewChild(child, ns, "text", (gchar *)data);
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xmlNewNs (child, "http://gstreamer.net/gst-test/1.0/", "test");
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xmlNewChild(child, NULL, "text", (gchar *)data);
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}
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int main(int argc,char *argv[])
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{
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GstElement *filesrc, *osssink, *queue, *queue2, *parse, *decode;
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GstElement *bin;
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GstElement *pipeline;
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GstElement *thread, *thread2;
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ns = xmlNewNs (NULL, "http://gstreamer.net/gst-test/1.0/", "test");
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gst_init(&argc,&argv);
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if (argc != 2) {
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@ -28,68 +30,68 @@ int main(int argc,char *argv[])
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exit(-1);
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}
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/* create a new thread to hold the elements */
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//thread = gst_thread_new("thread");
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thread = gst_elementfactory_make("thread", "thread");
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g_assert(thread != NULL);
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/* create new threads to hold the elements */
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thread = gst_elementfactory_make ("thread", "thread");
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g_assert (thread != NULL);
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thread2 = gst_elementfactory_make ("thread", "thread2");
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g_assert (thread2 != NULL);
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/* these signals will allow us to save custom tags with the gst xml output */
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g_signal_connect (G_OBJECT (thread), "object_saved",
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G_CALLBACK (object_saved),
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g_strdup ("decoder thread"));
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thread2 = gst_elementfactory_make("thread", "thread2");
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//thread2 = gst_thread_new("thread2");
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g_assert(thread2 != NULL);
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g_signal_connect (G_OBJECT (thread2), "object_saved",
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G_CALLBACK (object_saved),
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g_strdup ("render thread"));
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/* create a new bin to hold the elements */
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bin = gst_bin_new("bin");
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g_assert(bin != NULL);
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pipeline = gst_pipeline_new ("pipeline");
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g_assert (pipeline != NULL);
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/* create a disk reader */
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filesrc = gst_elementfactory_make("filesrc", "disk_source");
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g_assert(filesrc != NULL);
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g_object_set(G_OBJECT(filesrc),"location", argv[1],NULL);
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filesrc = gst_elementfactory_make ("filesrc", "disk_source");
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g_assert (filesrc != NULL);
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g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
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queue = gst_elementfactory_make("queue", "queue");
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queue2 = gst_elementfactory_make("queue", "queue2");
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queue = gst_elementfactory_make ("queue", "queue");
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queue2 = gst_elementfactory_make ("queue", "queue2");
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/* and an audio sink */
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osssink = gst_elementfactory_make("osssink", "play_audio");
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g_assert(osssink != NULL);
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osssink = gst_elementfactory_make ("osssink", "play_audio");
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g_assert (osssink != NULL);
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parse = gst_elementfactory_make("mp3parse", "parse");
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decode = gst_elementfactory_make("mpg123", "decode");
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decode = gst_elementfactory_make ("mad", "decode");
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g_assert (decode != NULL);
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/* add objects to the main bin */
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gst_bin_add(GST_BIN(bin), filesrc);
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gst_bin_add(GST_BIN(bin), queue);
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/* add objects to the main pipeline */
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gst_bin_add (GST_BIN (pipeline), filesrc);
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gst_bin_add (GST_BIN (pipeline), queue);
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gst_bin_add(GST_BIN(thread), parse);
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gst_bin_add(GST_BIN(thread), decode);
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gst_bin_add(GST_BIN(thread), queue2);
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gst_bin_add (GST_BIN (thread), decode);
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gst_bin_add (GST_BIN (thread), queue2);
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gst_bin_add(GST_BIN(thread2), osssink);
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gst_bin_add (GST_BIN (thread2), osssink);
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gst_pad_connect (gst_element_get_pad (filesrc,"src"),
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gst_element_get_pad (queue,"sink"));
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gst_pad_connect(gst_element_get_pad(filesrc,"src"),
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gst_element_get_pad(queue,"sink"));
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gst_pad_connect (gst_element_get_pad (queue,"src"),
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gst_element_get_pad (decode,"sink"));
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gst_pad_connect (gst_element_get_pad (decode,"src"),
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gst_element_get_pad (queue2,"sink"));
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gst_pad_connect(gst_element_get_pad(queue,"src"),
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gst_element_get_pad(parse,"sink"));
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gst_pad_connect(gst_element_get_pad(parse,"src"),
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gst_element_get_pad(decode,"sink"));
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gst_pad_connect(gst_element_get_pad(decode,"src"),
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gst_element_get_pad(queue2,"sink"));
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gst_pad_connect (gst_element_get_pad (queue2,"src"),
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gst_element_get_pad (osssink,"sink"));
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gst_pad_connect(gst_element_get_pad(queue2,"src"),
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gst_element_get_pad(osssink,"sink"));
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gst_bin_add (GST_BIN (pipeline), thread);
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gst_bin_add (GST_BIN (pipeline), thread2);
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gst_bin_add(GST_BIN(bin), thread);
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gst_bin_add(GST_BIN(bin), thread2);
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/* write the bin to stdout */
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gst_xml_write_file (GST_ELEMENT (pipeline), stdout);
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xmlSaveFile("xmlTest.gst", gst_xml_write(GST_ELEMENT(bin)));
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/* write the bin to a file */
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gst_xml_write_file (GST_ELEMENT (pipeline), fopen ("xmlTest.gst", "w"));
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exit(0);
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exit (0);
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}
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@ -29,27 +29,27 @@ xml_loaded (GstXML *xml, GstObject *object, xmlNodePtr self, gpointer data)
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int main(int argc,char *argv[])
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{
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GstXML *xml;
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GstElement *bin;
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GstElement *pipeline;
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gboolean ret;
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gst_init(&argc,&argv);
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xml = gst_xml_new ();
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g_signal_connect (G_OBJECT (xml), "object_loaded",
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G_CALLBACK (xml_loaded), xml);
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// g_signal_connect (G_OBJECT (xml), "object_loaded",
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// G_CALLBACK (xml_loaded), xml);
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ret = gst_xml_parse_file(xml, "xmlTest.gst", NULL);
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g_assert (ret == TRUE);
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bin = gst_xml_get_element(xml, "bin");
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g_assert (bin != NULL);
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pipeline = gst_xml_get_element(xml, "pipeline");
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g_assert (pipeline != NULL);
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gst_element_set_state(bin, GST_STATE_PLAYING);
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gst_element_set_state(pipeline, GST_STATE_PLAYING);
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while (gst_bin_iterate(GST_BIN(bin)));
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while (gst_bin_iterate(GST_BIN(pipeline)));
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gst_element_set_state(bin, GST_STATE_NULL);
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gst_element_set_state(pipeline, GST_STATE_NULL);
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exit(0);
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}
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@ -717,8 +717,13 @@ gst_bin_restore_thyself (GstObject * object, xmlNodePtr self)
|
|||
childlist = field->xmlChildrenNode;
|
||||
while (childlist) {
|
||||
if (!strcmp (childlist->name, "element")) {
|
||||
GstElement *element = gst_element_restore_thyself (childlist, GST_OBJECT (bin));
|
||||
|
||||
GstElement *element = gst_xml_make_element (childlist, GST_OBJECT (bin));
|
||||
|
||||
/* it had to be parented to find the pads, now we ref and unparent so
|
||||
* we can add it to the bin */
|
||||
gst_object_ref (GST_OBJECT (element));
|
||||
gst_object_unparent (GST_OBJECT (element));
|
||||
|
||||
gst_bin_add (bin, element);
|
||||
}
|
||||
childlist = childlist->next;
|
||||
|
|
|
|||
160
gst/gstelement.c
160
gst/gstelement.c
|
|
@ -65,7 +65,7 @@ static void gst_element_send_event_func (GstElement *element, GstEvent *even
|
|||
|
||||
#ifndef GST_DISABLE_LOADSAVE
|
||||
static xmlNodePtr gst_element_save_thyself (GstObject *object, xmlNodePtr parent);
|
||||
GstElement* gst_element_restore_thyself (xmlNodePtr self, GstObject *parent);
|
||||
static void gst_element_restore_thyself (GstObject *parent, xmlNodePtr self);
|
||||
#endif
|
||||
|
||||
GType _gst_element_type = 0;
|
||||
|
|
@ -1094,9 +1094,11 @@ gst_element_save_thyself (GstObject *object,
|
|||
{
|
||||
GList *pads;
|
||||
GstElementClass *oclass;
|
||||
/* FIXME : this is needed for glib2 */
|
||||
/* GType type; */
|
||||
GParamSpec **specs, *spec;
|
||||
gint nspecs, i;
|
||||
GValue value = { 0, };
|
||||
GstElement *element;
|
||||
gchar *str;
|
||||
|
||||
g_return_val_if_fail (GST_IS_ELEMENT (object), parent);
|
||||
|
||||
|
|
@ -1113,74 +1115,36 @@ gst_element_save_thyself (GstObject *object,
|
|||
xmlNewChild (parent, NULL, "version", factory->details->version);
|
||||
}
|
||||
|
||||
/* FIXME: what is this? */
|
||||
/* if (element->manager) */
|
||||
/* xmlNewChild(parent, NULL, "manager", GST_ELEMENT_NAME(element->manager)); */
|
||||
|
||||
/* FIXME FIXME FIXME! */
|
||||
/* output all args to the element */
|
||||
/*
|
||||
type = G_OBJECT_TYPE (element);
|
||||
while (type != G_TYPE_INVALID) {
|
||||
GtkArg *args;
|
||||
guint32 *flags;
|
||||
guint num_args,i;
|
||||
|
||||
args = gtk_object_query_args (type, &flags, &num_args);
|
||||
|
||||
for (i=0; i<num_args; i++) {
|
||||
if ((args[i].type > G_TYPE_NONE) &&
|
||||
(flags[i] & GTK_ARG_READABLE)) {
|
||||
xmlNodePtr arg;
|
||||
gtk_object_getv (G_OBJECT (element), 1, &args[i]);
|
||||
arg = xmlNewChild (parent, NULL, "arg", NULL);
|
||||
xmlNewChild (arg, NULL, "name", args[i].name);
|
||||
switch (args[i].type) {
|
||||
case G_TYPE_CHAR:
|
||||
xmlNewChild (arg, NULL, "value",
|
||||
g_strdup_printf ("%c", G_VALUE_CHAR (args[i])));
|
||||
break;
|
||||
case G_TYPE_UCHAR:
|
||||
xmlNewChild (arg, NULL, "value",
|
||||
g_strdup_printf ("%d", G_VALUE_UCHAR (args[i])));
|
||||
break;
|
||||
case G_TYPE_BOOLEAN:
|
||||
xmlNewChild (arg, NULL, "value",
|
||||
G_VALUE_BOOL (args[i]) ? "true" : "false");
|
||||
break;
|
||||
case G_TYPE_INT:
|
||||
xmlNewChild (arg, NULL, "value",
|
||||
g_strdup_printf ("%d", G_VALUE_INT (args[i])));
|
||||
break;
|
||||
case G_TYPE_LONG:
|
||||
xmlNewChild (arg, NULL, "value",
|
||||
g_strdup_printf ("%ld", G_VALUE_LONG (args[i])));
|
||||
break;
|
||||
case G_TYPE_ULONG:
|
||||
xmlNewChild (arg, NULL, "value",
|
||||
g_strdup_printf ("%lu", G_VALUE_ULONG (args[i])));
|
||||
break;
|
||||
case G_TYPE_FLOAT:
|
||||
xmlNewChild (arg, NULL, "value",
|
||||
g_strdup_printf ("%f", G_VALUE_FLOAT (args[i])));
|
||||
break;
|
||||
case G_TYPE_DOUBLE:
|
||||
xmlNewChild (arg, NULL, "value",
|
||||
g_strdup_printf ("%g", G_VALUE_DOUBLE (args[i])));
|
||||
break;
|
||||
case G_TYPE_STRING:
|
||||
xmlNewChild (arg, NULL, "value", G_VALUE_STRING (args[i]));
|
||||
break;
|
||||
default:
|
||||
if (args[i].type == GST_TYPE_FILENAME) {
|
||||
xmlNewChild (arg, NULL, "value", G_VALUE_STRING (args[i]));
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
#ifdef USE_GLIB2
|
||||
/* params */
|
||||
specs = g_object_class_list_properties (G_OBJECT_GET_CLASS (object), &nspecs);
|
||||
|
||||
for (i=0; i<nspecs; i++) {
|
||||
spec = specs[i];
|
||||
if (spec->flags & G_PARAM_READABLE) {
|
||||
xmlNodePtr param;
|
||||
|
||||
g_value_init(&value, G_PARAM_SPEC_VALUE_TYPE (spec));
|
||||
|
||||
g_object_get_property (G_OBJECT (element), spec->name, &value);
|
||||
param = xmlNewChild (parent, NULL, "param", NULL);
|
||||
xmlNewChild (param, NULL, "name", spec->name);
|
||||
|
||||
if (G_IS_PARAM_SPEC_STRING (spec))
|
||||
xmlNewChild (param, NULL, "value", g_value_dup_string (&value));
|
||||
else if (G_IS_PARAM_SPEC_ENUM (spec))
|
||||
xmlNewChild (param, NULL, "value", g_strdup_printf ("%d", g_value_get_enum (&value)));
|
||||
else
|
||||
xmlNewChild (param, NULL, "value", g_strdup_value_contents (&value));
|
||||
|
||||
g_value_unset(&value);
|
||||
}
|
||||
type = gtk_type_parent (type);
|
||||
}
|
||||
*/
|
||||
#endif
|
||||
|
||||
pads = GST_ELEMENT_PADS (element);
|
||||
|
||||
|
|
@ -1197,53 +1161,21 @@ gst_element_save_thyself (GstObject *object,
|
|||
return parent;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_element_restore_thyself:
|
||||
* @self: the xml node
|
||||
* @parent: the parent of this object when it's loaded
|
||||
*
|
||||
* Load the element from the XML description
|
||||
*
|
||||
* Returns: the new element
|
||||
*/
|
||||
GstElement*
|
||||
gst_element_restore_thyself (xmlNodePtr self, GstObject *parent)
|
||||
static void
|
||||
gst_element_restore_thyself (GstObject *object, xmlNodePtr self)
|
||||
{
|
||||
xmlNodePtr children = self->xmlChildrenNode;
|
||||
xmlNodePtr children;
|
||||
GstElement *element;
|
||||
GstObjectClass *oclass;
|
||||
guchar *name = NULL;
|
||||
guchar *value = NULL;
|
||||
guchar *type = NULL;
|
||||
|
||||
/* first get the needed tags to construct the element */
|
||||
while (children) {
|
||||
if (!strcmp (children->name, "name")) {
|
||||
name = xmlNodeGetContent (children);
|
||||
} else if (!strcmp (children->name, "type")) {
|
||||
type = xmlNodeGetContent (children);
|
||||
}
|
||||
children = children->next;
|
||||
}
|
||||
g_return_val_if_fail (name != NULL, NULL);
|
||||
g_return_val_if_fail (type != NULL, NULL);
|
||||
element = GST_ELEMENT (object);
|
||||
g_return_if_fail (element != NULL);
|
||||
|
||||
GST_INFO (GST_CAT_XML,"loading \"%s\" of type \"%s\"", name, type);
|
||||
|
||||
element = gst_elementfactory_make (type, name);
|
||||
|
||||
g_return_val_if_fail (element != NULL, NULL);
|
||||
|
||||
/* ne need to set the parent on this object bacause the pads */
|
||||
/* will go through the hierarchy to connect to thier peers */
|
||||
if (parent)
|
||||
gst_object_set_parent (GST_OBJECT (element), parent);
|
||||
|
||||
/* we have the element now, set the arguments */
|
||||
/* parameters */
|
||||
children = self->xmlChildrenNode;
|
||||
|
||||
while (children) {
|
||||
if (!strcmp (children->name, "arg")) {
|
||||
if (!strcmp (children->name, "param")) {
|
||||
xmlNodePtr child = children->xmlChildrenNode;
|
||||
|
||||
while (child) {
|
||||
|
|
@ -1255,13 +1187,14 @@ gst_element_restore_thyself (xmlNodePtr self, GstObject *parent)
|
|||
}
|
||||
child = child->next;
|
||||
}
|
||||
/* FIXME: can this just be g_object_set ? */
|
||||
gst_util_set_object_arg ((GObject *)G_OBJECT (element), name, value);
|
||||
}
|
||||
children = children->next;
|
||||
}
|
||||
/* we have the element now, set the pads */
|
||||
|
||||
/* pads */
|
||||
children = self->xmlChildrenNode;
|
||||
|
||||
while (children) {
|
||||
if (!strcmp (children->name, "pad")) {
|
||||
gst_pad_load_and_connect (children, GST_OBJECT (element));
|
||||
|
|
@ -1269,16 +1202,8 @@ gst_element_restore_thyself (xmlNodePtr self, GstObject *parent)
|
|||
children = children->next;
|
||||
}
|
||||
|
||||
oclass = GST_OBJECT_CLASS (G_OBJECT_GET_CLASS(element));
|
||||
if (oclass->restore_thyself)
|
||||
(oclass->restore_thyself) (GST_OBJECT (element), self);
|
||||
|
||||
if (parent)
|
||||
gst_object_unparent (GST_OBJECT (element));
|
||||
|
||||
gst_class_signal_emit_by_name (GST_OBJECT (element), "object_loaded", self);
|
||||
|
||||
return element;
|
||||
if (GST_OBJECT_CLASS(parent_class)->restore_thyself)
|
||||
(GST_OBJECT_CLASS(parent_class)->restore_thyself) (object, self);
|
||||
}
|
||||
#endif /* GST_DISABLE_LOADSAVE */
|
||||
|
||||
|
|
@ -1560,4 +1485,3 @@ gst_element_install_std_props (GstElementClass * klass, const char *first_name,
|
|||
|
||||
va_end (args);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -226,12 +226,6 @@ void gst_element_install_std_props (GstElementClass *klass,
|
|||
const char *first_name, ...);
|
||||
|
||||
|
||||
#ifndef GST_DISABLE_LOADSAVE
|
||||
/* XML write and read */
|
||||
GstElement* gst_element_restore_thyself (xmlNodePtr self, GstObject *parent);
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
*
|
||||
* factories stuff
|
||||
|
|
|
|||
|
|
@ -66,6 +66,10 @@ static void gst_object_get_property (GObject * object, guint prop_id, GValue
|
|||
static void gst_object_dispose (GObject *object);
|
||||
static void gst_object_finalize (GObject *object);
|
||||
|
||||
#ifndef GST_DISABLE_LOADSAVE_REGISTRY
|
||||
static void gst_object_real_restore_thyself (GstObject *object, xmlNodePtr self);
|
||||
#endif
|
||||
|
||||
static GObjectClass *parent_class = NULL;
|
||||
static guint gst_object_signals[LAST_SIGNAL] = { 0 };
|
||||
|
||||
|
|
@ -117,11 +121,13 @@ gst_object_class_init (GstObjectClass *klass)
|
|||
G_STRUCT_OFFSET (GstObjectClass, object_saved), NULL, NULL,
|
||||
g_cclosure_marshal_VOID__POINTER, G_TYPE_NONE, 1,
|
||||
G_TYPE_POINTER);
|
||||
|
||||
klass->restore_thyself = gst_object_real_restore_thyself;
|
||||
#endif
|
||||
|
||||
klass->path_string_separator = "/";
|
||||
/* FIXME!!! */
|
||||
/* klass->signal_object = g_object_new(gst_signal_object_get_type (,NULL)); */
|
||||
|
||||
klass->signal_object = g_object_new (gst_signal_object_get_type (), NULL);
|
||||
|
||||
gobject_class->dispose = gst_object_dispose;
|
||||
gobject_class->finalize = gst_object_finalize;
|
||||
|
|
@ -495,22 +501,35 @@ gst_object_save_thyself (GstObject *object, xmlNodePtr parent)
|
|||
/**
|
||||
* gst_object_restore_thyself:
|
||||
* @object: GstObject to load into
|
||||
* @parent: The parent XML node to load the object from
|
||||
* @self: The XML node to load the object from
|
||||
*
|
||||
* Restores the given object with the data from the parent XML node.
|
||||
*/
|
||||
void
|
||||
gst_object_restore_thyself (GstObject *object, xmlNodePtr parent)
|
||||
gst_object_restore_thyself (GstObject *object, xmlNodePtr self)
|
||||
{
|
||||
GstObjectClass *oclass;
|
||||
|
||||
g_return_if_fail (object != NULL);
|
||||
g_return_if_fail (GST_IS_OBJECT (object));
|
||||
g_return_if_fail (parent != NULL);
|
||||
g_return_if_fail (self != NULL);
|
||||
|
||||
oclass = (GstObjectClass *)G_OBJECT_GET_CLASS(object);
|
||||
oclass = (GstObjectClass *) G_OBJECT_GET_CLASS(object);
|
||||
if (oclass->restore_thyself)
|
||||
oclass->restore_thyself (object, parent);
|
||||
oclass->restore_thyself (object, self);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_object_real_restore_thyself (GstObject *object, xmlNodePtr self)
|
||||
{
|
||||
GstObjectClass *oclass;
|
||||
|
||||
g_return_if_fail (object != NULL);
|
||||
g_return_if_fail (GST_IS_OBJECT (object));
|
||||
g_return_if_fail (self != NULL);
|
||||
|
||||
/* FIXME: the signalobject stuff doesn't work
|
||||
* gst_class_signal_emit_by_name (object, "object_loaded", self); */
|
||||
}
|
||||
#endif /* GST_DISABLE_LOADSAVE_REGISTRY */
|
||||
|
||||
|
|
|
|||
|
|
@ -565,7 +565,7 @@ gst_queue_set_property (GObject *object, guint prop_id, const GValue *value, GPa
|
|||
|
||||
switch (prop_id) {
|
||||
case ARG_LEAKY:
|
||||
queue->leaky = g_value_get_int (value);
|
||||
queue->leaky = g_value_get_enum (value);
|
||||
break;
|
||||
case ARG_MAX_LEVEL:
|
||||
queue->size_buffers = g_value_get_int (value);
|
||||
|
|
@ -591,7 +591,7 @@ gst_queue_get_property (GObject *object, guint prop_id, GValue *value, GParamSpe
|
|||
|
||||
switch (prop_id) {
|
||||
case ARG_LEAKY:
|
||||
g_value_set_int (value, queue->leaky);
|
||||
g_value_set_enum (value, queue->leaky);
|
||||
break;
|
||||
case ARG_LEVEL:
|
||||
g_value_set_int (value, queue->level_buffers);
|
||||
|
|
|
|||
56
gst/gstxml.c
56
gst/gstxml.c
|
|
@ -113,11 +113,11 @@ gst_xml_write (GstElement *element)
|
|||
xmlNsPtr ns;
|
||||
|
||||
doc = xmlNewDoc ("1.0");
|
||||
xmlNewGlobalNs (doc, "http://gstreamer.net/gst-core/1.0/", "gst");
|
||||
|
||||
doc->xmlRootNode = xmlNewDocNode (doc, NULL, "gstreamer", NULL);
|
||||
|
||||
ns = xmlNewNs (doc->xmlRootNode, "http://gstreamer.net/gst-core/1.0/", "gst");
|
||||
|
||||
doc->xmlRootNode = xmlNewDocNode (doc, ns, "gstreamer", NULL);
|
||||
|
||||
|
||||
elementnode = xmlNewChild (doc->xmlRootNode, ns, "element", NULL);
|
||||
|
||||
gst_object_save_thyself (GST_OBJECT (element), elementnode);
|
||||
|
|
@ -228,7 +228,7 @@ gst_xml_parse_doc (GstXML *xml, xmlDocPtr doc, const guchar *root)
|
|||
if (!strcmp(field->name, "element") && (field->ns == xml->ns)) {
|
||||
GstElement *element;
|
||||
|
||||
element = gst_element_restore_thyself(field, NULL);
|
||||
element = gst_xml_make_element (field, NULL);
|
||||
|
||||
xml->topelements = g_list_prepend (xml->topelements, element);
|
||||
}
|
||||
|
|
@ -363,3 +363,49 @@ gst_xml_get_element (GstXML *xml, const guchar *name)
|
|||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_xml_make_element:
|
||||
* @cur: the xml node
|
||||
* @parent: the parent of this object when it's loaded
|
||||
*
|
||||
* Load the element from the XML description
|
||||
*
|
||||
* Returns: the new element
|
||||
*/
|
||||
GstElement*
|
||||
gst_xml_make_element (xmlNodePtr cur, GstObject *parent)
|
||||
{
|
||||
xmlNodePtr children = cur->xmlChildrenNode;
|
||||
GstElement *element;
|
||||
GstObjectClass *oclass;
|
||||
guchar *name = NULL;
|
||||
guchar *type = NULL;
|
||||
|
||||
/* first get the needed tags to construct the element */
|
||||
while (children) {
|
||||
if (!strcmp (children->name, "name")) {
|
||||
name = xmlNodeGetContent (children);
|
||||
} else if (!strcmp (children->name, "type")) {
|
||||
type = xmlNodeGetContent (children);
|
||||
}
|
||||
children = children->next;
|
||||
}
|
||||
g_return_val_if_fail (name != NULL, NULL);
|
||||
g_return_val_if_fail (type != NULL, NULL);
|
||||
|
||||
GST_INFO (GST_CAT_XML,"loading \"%s\" of type \"%s\"", name, type);
|
||||
|
||||
element = gst_elementfactory_make (type, name);
|
||||
|
||||
g_return_val_if_fail (element != NULL, NULL);
|
||||
|
||||
/* ne need to set the parent on this object bacause the pads */
|
||||
/* will go through the hierarchy to connect to thier peers */
|
||||
if (parent)
|
||||
gst_object_set_parent (GST_OBJECT (element), parent);
|
||||
|
||||
gst_object_restore_thyself (GST_OBJECT (element), cur);
|
||||
|
||||
return element;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -82,6 +82,8 @@ gboolean gst_xml_parse_memory (GstXML *xml, guchar *buffer, guint size, const gc
|
|||
GstElement* gst_xml_get_element (GstXML *xml, const guchar *name);
|
||||
GList* gst_xml_get_topelements (GstXML *xml);
|
||||
|
||||
GstElement* gst_xml_make_element (xmlNodePtr cur, GstObject *parent);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
|
|
|||
|
|
@ -565,7 +565,7 @@ gst_queue_set_property (GObject *object, guint prop_id, const GValue *value, GPa
|
|||
|
||||
switch (prop_id) {
|
||||
case ARG_LEAKY:
|
||||
queue->leaky = g_value_get_int (value);
|
||||
queue->leaky = g_value_get_enum (value);
|
||||
break;
|
||||
case ARG_MAX_LEVEL:
|
||||
queue->size_buffers = g_value_get_int (value);
|
||||
|
|
@ -591,7 +591,7 @@ gst_queue_get_property (GObject *object, guint prop_id, GValue *value, GParamSpe
|
|||
|
||||
switch (prop_id) {
|
||||
case ARG_LEAKY:
|
||||
g_value_set_int (value, queue->leaky);
|
||||
g_value_set_enum (value, queue->leaky);
|
||||
break;
|
||||
case ARG_LEVEL:
|
||||
g_value_set_int (value, queue->level_buffers);
|
||||
|
|
|
|||
|
|
@ -95,7 +95,7 @@ gst_play_have_type (GstElement *typefind, GstCaps *caps, GstElement *pipeline)
|
|||
gst_element_set_state (pipeline, GST_STATE_PLAYING);
|
||||
|
||||
#ifndef GST_DISABLE_LOADSAVE
|
||||
xmlSaveFile("xmlTest.gst", gst_xml_write (GST_ELEMENT (pipeline)));
|
||||
gst_xml_write_file (GST_ELEMENT (pipeline), fopen ("xmlTest.gst", "w"));
|
||||
#endif
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -182,7 +182,7 @@ int main(int argc,char *argv[])
|
|||
env_register_cp (channel_in->volenv, num_channels * 10.0 , 1.0 / num_channels); /* to end level */
|
||||
|
||||
#ifndef GST_DISABLE_LOADSAVE
|
||||
xmlSaveFile("mixer.xml", gst_xml_write(GST_ELEMENT(main_bin)));
|
||||
gst_xml_write_file (GST_ELEMENT (main_bin), fopen ("mixer.xml", "w"));
|
||||
#endif
|
||||
|
||||
/* start playing */
|
||||
|
|
@ -358,7 +358,7 @@ create_input_channel (int id, char* location)
|
|||
|
||||
#endif
|
||||
#ifndef GST_DISABLE_LOADSAVE
|
||||
xmlSaveFile ("mixer.gst", gst_xml_write (new_element));
|
||||
gst_xml_write_file (GST_ELEMENT (new_element), fopen ("mixer.gst", "w"));
|
||||
#endif
|
||||
|
||||
gst_bin_add (GST_BIN(channel->pipe), channel->volenv);
|
||||
|
|
|
|||
|
|
@ -2,25 +2,27 @@
|
|||
#include <gst/gst.h>
|
||||
|
||||
gboolean playing;
|
||||
xmlNsPtr ns;
|
||||
|
||||
static void
|
||||
object_saved (GstObject *object, xmlNodePtr parent, gpointer data)
|
||||
{
|
||||
xmlNodePtr child;
|
||||
|
||||
xmlNsPtr ns;
|
||||
|
||||
/* i'm not sure why both of these Ns things are necessary, but they are */
|
||||
ns = xmlNewNs (NULL, "http://gstreamer.net/gst-test/1.0/", "test");
|
||||
child = xmlNewChild(parent, ns, "comment", NULL);
|
||||
xmlNewChild(child, ns, "text", (gchar *)data);
|
||||
xmlNewNs (child, "http://gstreamer.net/gst-test/1.0/", "test");
|
||||
|
||||
xmlNewChild(child, NULL, "text", (gchar *)data);
|
||||
}
|
||||
|
||||
int main(int argc,char *argv[])
|
||||
{
|
||||
GstElement *filesrc, *osssink, *queue, *queue2, *parse, *decode;
|
||||
GstElement *bin;
|
||||
GstElement *pipeline;
|
||||
GstElement *thread, *thread2;
|
||||
|
||||
ns = xmlNewNs (NULL, "http://gstreamer.net/gst-test/1.0/", "test");
|
||||
|
||||
gst_init(&argc,&argv);
|
||||
|
||||
if (argc != 2) {
|
||||
|
|
@ -28,68 +30,68 @@ int main(int argc,char *argv[])
|
|||
exit(-1);
|
||||
}
|
||||
|
||||
/* create a new thread to hold the elements */
|
||||
//thread = gst_thread_new("thread");
|
||||
thread = gst_elementfactory_make("thread", "thread");
|
||||
g_assert(thread != NULL);
|
||||
/* create new threads to hold the elements */
|
||||
thread = gst_elementfactory_make ("thread", "thread");
|
||||
g_assert (thread != NULL);
|
||||
thread2 = gst_elementfactory_make ("thread", "thread2");
|
||||
g_assert (thread2 != NULL);
|
||||
|
||||
/* these signals will allow us to save custom tags with the gst xml output */
|
||||
g_signal_connect (G_OBJECT (thread), "object_saved",
|
||||
G_CALLBACK (object_saved),
|
||||
g_strdup ("decoder thread"));
|
||||
|
||||
thread2 = gst_elementfactory_make("thread", "thread2");
|
||||
//thread2 = gst_thread_new("thread2");
|
||||
g_assert(thread2 != NULL);
|
||||
g_signal_connect (G_OBJECT (thread2), "object_saved",
|
||||
G_CALLBACK (object_saved),
|
||||
g_strdup ("render thread"));
|
||||
|
||||
|
||||
/* create a new bin to hold the elements */
|
||||
bin = gst_bin_new("bin");
|
||||
g_assert(bin != NULL);
|
||||
pipeline = gst_pipeline_new ("pipeline");
|
||||
g_assert (pipeline != NULL);
|
||||
|
||||
/* create a disk reader */
|
||||
filesrc = gst_elementfactory_make("filesrc", "disk_source");
|
||||
g_assert(filesrc != NULL);
|
||||
g_object_set(G_OBJECT(filesrc),"location", argv[1],NULL);
|
||||
filesrc = gst_elementfactory_make ("filesrc", "disk_source");
|
||||
g_assert (filesrc != NULL);
|
||||
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
|
||||
|
||||
queue = gst_elementfactory_make("queue", "queue");
|
||||
queue2 = gst_elementfactory_make("queue", "queue2");
|
||||
queue = gst_elementfactory_make ("queue", "queue");
|
||||
queue2 = gst_elementfactory_make ("queue", "queue2");
|
||||
|
||||
/* and an audio sink */
|
||||
osssink = gst_elementfactory_make("osssink", "play_audio");
|
||||
g_assert(osssink != NULL);
|
||||
osssink = gst_elementfactory_make ("osssink", "play_audio");
|
||||
g_assert (osssink != NULL);
|
||||
|
||||
parse = gst_elementfactory_make("mp3parse", "parse");
|
||||
decode = gst_elementfactory_make("mpg123", "decode");
|
||||
decode = gst_elementfactory_make ("mad", "decode");
|
||||
g_assert (decode != NULL);
|
||||
|
||||
/* add objects to the main bin */
|
||||
gst_bin_add(GST_BIN(bin), filesrc);
|
||||
gst_bin_add(GST_BIN(bin), queue);
|
||||
/* add objects to the main pipeline */
|
||||
gst_bin_add (GST_BIN (pipeline), filesrc);
|
||||
gst_bin_add (GST_BIN (pipeline), queue);
|
||||
|
||||
gst_bin_add(GST_BIN(thread), parse);
|
||||
gst_bin_add(GST_BIN(thread), decode);
|
||||
gst_bin_add(GST_BIN(thread), queue2);
|
||||
gst_bin_add (GST_BIN (thread), decode);
|
||||
gst_bin_add (GST_BIN (thread), queue2);
|
||||
|
||||
gst_bin_add(GST_BIN(thread2), osssink);
|
||||
gst_bin_add (GST_BIN (thread2), osssink);
|
||||
|
||||
gst_pad_connect (gst_element_get_pad (filesrc,"src"),
|
||||
gst_element_get_pad (queue,"sink"));
|
||||
|
||||
gst_pad_connect(gst_element_get_pad(filesrc,"src"),
|
||||
gst_element_get_pad(queue,"sink"));
|
||||
gst_pad_connect (gst_element_get_pad (queue,"src"),
|
||||
gst_element_get_pad (decode,"sink"));
|
||||
gst_pad_connect (gst_element_get_pad (decode,"src"),
|
||||
gst_element_get_pad (queue2,"sink"));
|
||||
|
||||
gst_pad_connect(gst_element_get_pad(queue,"src"),
|
||||
gst_element_get_pad(parse,"sink"));
|
||||
gst_pad_connect(gst_element_get_pad(parse,"src"),
|
||||
gst_element_get_pad(decode,"sink"));
|
||||
gst_pad_connect(gst_element_get_pad(decode,"src"),
|
||||
gst_element_get_pad(queue2,"sink"));
|
||||
gst_pad_connect (gst_element_get_pad (queue2,"src"),
|
||||
gst_element_get_pad (osssink,"sink"));
|
||||
|
||||
gst_pad_connect(gst_element_get_pad(queue2,"src"),
|
||||
gst_element_get_pad(osssink,"sink"));
|
||||
gst_bin_add (GST_BIN (pipeline), thread);
|
||||
gst_bin_add (GST_BIN (pipeline), thread2);
|
||||
|
||||
gst_bin_add(GST_BIN(bin), thread);
|
||||
gst_bin_add(GST_BIN(bin), thread2);
|
||||
/* write the bin to stdout */
|
||||
gst_xml_write_file (GST_ELEMENT (pipeline), stdout);
|
||||
|
||||
xmlSaveFile("xmlTest.gst", gst_xml_write(GST_ELEMENT(bin)));
|
||||
/* write the bin to a file */
|
||||
gst_xml_write_file (GST_ELEMENT (pipeline), fopen ("xmlTest.gst", "w"));
|
||||
|
||||
exit(0);
|
||||
exit (0);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -29,27 +29,27 @@ xml_loaded (GstXML *xml, GstObject *object, xmlNodePtr self, gpointer data)
|
|||
int main(int argc,char *argv[])
|
||||
{
|
||||
GstXML *xml;
|
||||
GstElement *bin;
|
||||
GstElement *pipeline;
|
||||
gboolean ret;
|
||||
|
||||
gst_init(&argc,&argv);
|
||||
|
||||
xml = gst_xml_new ();
|
||||
|
||||
g_signal_connect (G_OBJECT (xml), "object_loaded",
|
||||
G_CALLBACK (xml_loaded), xml);
|
||||
// g_signal_connect (G_OBJECT (xml), "object_loaded",
|
||||
// G_CALLBACK (xml_loaded), xml);
|
||||
|
||||
ret = gst_xml_parse_file(xml, "xmlTest.gst", NULL);
|
||||
g_assert (ret == TRUE);
|
||||
|
||||
bin = gst_xml_get_element(xml, "bin");
|
||||
g_assert (bin != NULL);
|
||||
pipeline = gst_xml_get_element(xml, "pipeline");
|
||||
g_assert (pipeline != NULL);
|
||||
|
||||
gst_element_set_state(bin, GST_STATE_PLAYING);
|
||||
gst_element_set_state(pipeline, GST_STATE_PLAYING);
|
||||
|
||||
while (gst_bin_iterate(GST_BIN(bin)));
|
||||
while (gst_bin_iterate(GST_BIN(pipeline)));
|
||||
|
||||
gst_element_set_state(bin, GST_STATE_NULL);
|
||||
gst_element_set_state(pipeline, GST_STATE_NULL);
|
||||
|
||||
exit(0);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -40,7 +40,7 @@ int main (int argc, char *argv[])
|
|||
gst_element_connect(fakesrc, "src", fakesink2, "sink");
|
||||
|
||||
// show the pipeline state
|
||||
xmlDocDump(stdout, gst_xml_write(pipe2));
|
||||
gst_xml_write_file (GST_ELEMENT (pipe2), stdout);
|
||||
|
||||
// try to iterate the pipeline
|
||||
gst_element_set_state(pipe2, GST_STATE_PLAYING);
|
||||
|
|
|
|||
|
|
@ -141,7 +141,7 @@ main(int argc, char *argv[])
|
|||
|
||||
#ifndef GST_DISABLE_LOADSAVE
|
||||
if (save_pipeline) {
|
||||
xmlSaveFile (savefile, gst_xml_write (pipeline));
|
||||
gst_xml_write_file (GST_ELEMENT (pipeline), fopen (savefile, "w"));
|
||||
}
|
||||
#endif
|
||||
if (run_pipeline) {
|
||||
|
|
|
|||
Loading…
Reference in a new issue