static void
gst_negotiation_update_caps (GstNegotiation * negotiation)
{
GstCaps *srccaps;
GstCaps *sinkcaps;
GstCaps *icaps;
srccaps = gst_pad_get_allowed_caps (negotiation->srcpad);
sinkcaps = gst_pad_get_allowed_caps (negotiation->sinkpad);
icaps = gst_caps_intersect (srccaps, sinkcaps);
gst_caps_free (srccaps);
gst_caps_free (sinkcaps);
gst_caps_replace (&negotiation->caps, icaps);
g_object_notify (G_OBJECT (negotiation), "allowed-caps");
GST_DEBUG ("notify %" GST_PTR_FORMAT, icaps);
}
static void
gst_gdk_pixbuf_type_find (GstTypeFind * tf, gpointer ignore)
{
guint8 *data;
GdkPixbufLoader *pixbuf_loader;
GdkPixbufFormat *format;
data = gst_type_find_peek (tf, 0, GST_GDK_PIXBUF_TYPE_FIND_SIZE);
if (data == NULL)
return;
GST_DEBUG ("creating new loader");
pixbuf_loader = gdk_pixbuf_loader_new ();
gdk_pixbuf_loader_write (pixbuf_loader, data, GST_GDK_PIXBUF_TYPE_FIND_SIZE,
NULL);
format = gdk_pixbuf_loader_get_format (pixbuf_loader);
if (format != NULL) {
GstCaps *caps;
gchar **p;
gchar **mlist = gdk_pixbuf_format_get_mime_types (format);
for (p = mlist; *p; ++p) {
GST_DEBUG ("suggesting mime type %s", *p);
caps = gst_caps_new_simple (*p, NULL);
gst_type_find_suggest (tf, GST_TYPE_FIND_MINIMUM, caps);
gst_caps_free (caps);
}
g_strfreev (mlist);
}
GST_DEBUG ("closing pixbuf loader, hope it doesn't hang ...");
/* librsvg 2.4.x has a bug where it triggers an endless loop in trying
to close a gzip that's not an svg; fixed upstream but no good way
to work around it */
gdk_pixbuf_loader_close (pixbuf_loader, NULL);
GST_DEBUG ("closed pixbuf loader");
g_object_unref (G_OBJECT (pixbuf_loader));
}
static GstCaps *
gst_hermes_colorspace_getcaps (GstPad * pad)
{
GstHermesColorspace *space;
GstPad *otherpad;
GstCaps *othercaps;
GstCaps *caps;
space = GST_HERMES_COLORSPACE (gst_pad_get_parent (pad));
otherpad = (pad == space->srcpad) ? space->sinkpad : space->srcpad;
othercaps = gst_pad_get_allowed_caps (otherpad);
othercaps = gst_hermes_colorspace_caps_remove_format_info (othercaps);
caps = gst_caps_intersect (othercaps, gst_pad_get_pad_template_caps (pad));
gst_caps_free (othercaps);
return caps;
}
static GstCaps *
gst_mikmod_srcfixate (GstPad * pad, const GstCaps * caps)
{
GstCaps *ret;
GstStructure *structure;
/* FIXME: select est caps here */
if (gst_caps_get_size (caps) > 1)
return NULL;
ret = gst_caps_copy (caps);
structure = gst_caps_get_structure (ret, 0);
if (gst_structure_fixate_field_nearest_int (structure, "channels", 2))
return ret;
if (gst_structure_fixate_field_nearest_int (structure, "rate", 44100))
return ret;
gst_caps_free (ret);
return NULL;
}
static GstPadLinkReturn
gst_hermes_colorspace_link (GstPad * pad, const GstCaps * caps)
{
GstHermesColorspace *space;
GstPad *otherpad;
GstStructure *structure;
GstPadLinkReturn link_ret;
int width, height;
double fps;
int i;
space = GST_HERMES_COLORSPACE (gst_pad_get_parent (pad));
otherpad = (pad == space->sinkpad) ? space->srcpad : space->sinkpad;
link_ret = gst_pad_try_set_caps (otherpad, caps);
if (link_ret == GST_PAD_LINK_OK) {
space->passthru = TRUE;
return link_ret;
}
structure = gst_caps_get_structure (caps, 0);
for (i = 0; i < G_N_ELEMENTS (gst_hermes_colorspace_formats); i++) {
GstCaps *icaps;
GstCaps *fcaps;
fcaps =
gst_caps_copy (gst_static_caps_get (&gst_hermes_colorspace_formats
[i].caps));
icaps = gst_caps_intersect (caps, fcaps);
if (!gst_caps_is_empty (icaps)) {
break;
}
gst_caps_free (icaps);
}
if (i == G_N_ELEMENTS (gst_hermes_colorspace_formats)) {
g_assert_not_reached ();
return GST_PAD_LINK_REFUSED;
}
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "height", &height);
gst_structure_get_double (structure, "framerate", &fps);
GST_INFO ("size: %dx%d", space->width, space->height);
if (gst_pad_is_negotiated (otherpad)) {
GstCaps *othercaps;
othercaps = gst_caps_copy (gst_pad_get_negotiated_caps (otherpad));
gst_caps_set_simple (othercaps,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height, "framerate", G_TYPE_DOUBLE, fps, NULL);
link_ret = gst_pad_try_set_caps (otherpad, othercaps);
if (link_ret != GST_PAD_LINK_OK) {
return link_ret;
}
}
if (pad == space->srcpad) {
space->src_format_index = i;
gst_hermes_colorspace_structure_to_hermes_format (&space->src_format,
structure);
} else {
space->sink_format_index = i;
gst_hermes_colorspace_structure_to_hermes_format (&space->sink_format,
structure);
}
space->sink_stride = width * (space->sink_format.bits / 8);
space->src_stride = width * (space->src_format.bits / 8);
space->sink_size = space->sink_stride * height;
space->src_size = space->src_stride * height;
space->width = width;
space->height = height;
space->fps = fps;
if (gst_pad_is_negotiated (otherpad)) {
if (!Hermes_ConverterRequest (space->h_handle, &space->sink_format,
&space->src_format)) {
g_warning ("Hermes: could not get converter\n");
return GST_PAD_LINK_REFUSED;
}
g_print ("inited\n");
}
return GST_PAD_LINK_OK;
}
void gap_metadata_load (GAPMetaData *md, const char *uri)
{
GstElement *pipeline = NULL;
GstElement *gnomevfssrc = NULL;
GstElement *typefind = NULL;
GstElement *spider = NULL;
GstElement *fakesink = NULL;
GstCaps *filtercaps = NULL;
const char *plugin_name = NULL;
g_return_if_fail (uri != NULL);
g_print ("Loading metadata for: %s\n", uri);
md->uri = g_strdup (uri);
md->duration = -1;
/* The main tagfinding pipeline looks like this:
* gnomevfssrc ! typefind ! spider ! application/x-gst-tags ! fakesink
*/
pipeline = gst_pipeline_new ("pipeline");
g_signal_connect (pipeline, "error", G_CALLBACK (cb_gst_error), md);
g_signal_connect (pipeline, "found-tag", G_CALLBACK (cb_gst_found_tag), md);
gnomevfssrc = gst_element_factory_make ("gnomevfssrc", "gnomevfssrc");
/* TODO: check error */
gst_bin_add (GST_BIN (pipeline), gnomevfssrc);
g_object_set (G_OBJECT (gnomevfssrc), "location", uri, NULL);
typefind = gst_element_factory_make ("typefind", "typefind");
/* TODO: check error */
g_signal_connect (typefind, "have_type", G_CALLBACK (cb_gst_have_type), md);
gst_bin_add (GST_BIN (pipeline), typefind);
spider = gst_element_factory_make ("spider", "spider");
/* TODO: check error */
gst_bin_add (GST_BIN (pipeline), spider);
fakesink = gst_element_factory_make ("fakesink", "fakesink");
/* TODO: check error */
gst_bin_add (GST_BIN (pipeline), fakesink);
g_object_set (G_OBJECT (fakesink), "signal-handoffs", TRUE, NULL);
g_signal_connect (fakesink, "handoff", G_CALLBACK (cb_gst_handoff), md);
g_signal_connect (fakesink, "eos", G_CALLBACK (cb_gst_eos), md);
gst_element_link_many (gnomevfssrc, typefind, spider, NULL);
filtercaps = gst_caps_new_simple ("audio/x-raw-int", NULL);
gst_element_link_filtered (spider, fakesink, filtercaps);
gst_caps_free (filtercaps);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
while ((gst_bin_iterate (GST_BIN (pipeline)))
&& (md->error == NULL)
&& (!md->handoff)
&& (!md->eos))
;
if (md->handoff)
{
if (md->duration == -1)
{
GstFormat format = GST_FORMAT_TIME;
gint64 length;
if (gst_element_query (fakesink, GST_QUERY_TOTAL, &format, &length))
{
GValue *newval = g_new0 (GValue, 1);
g_print ("Duration query succeeded\n");
g_value_init (newval, G_TYPE_LONG);
g_value_set_long (newval, (long) (length / (1 * 1000 * 1000 * 1000)));
md->duration = g_value_get_long (newval);
g_printf ("Duration: %d\n", md->duration);
}
else
g_print ("Duration query failed\n");
}
}
else if (md->eos)
g_print ("Received eos without handoff\n");
gst_element_set_state (pipeline, GST_STATE_NULL);
if (pipeline != NULL)
gst_object_unref (GST_OBJECT (pipeline));
}