static GstPadLinkReturn
gst_videodrop_link (GstPad * pad, const GstCaps * caps)
{
GstVideodrop *videodrop;
GstStructure *structure;
gboolean ret;
double fps;
GstPad *otherpad;
videodrop = GST_VIDEODROP (gst_pad_get_parent (pad));
otherpad = (pad == videodrop->srcpad) ? videodrop->sinkpad :
videodrop->srcpad;
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_double (structure, "framerate", &fps);
if (!ret)
return GST_PAD_LINK_REFUSED;
if (pad == videodrop->srcpad) {
videodrop->to_fps = fps;
} else {
videodrop->from_fps = fps;
}
if (gst_pad_is_negotiated (otherpad)) {
/*
* Ensure that the other side talks the format we're trying to set
*/
GstCaps *newcaps = gst_caps_copy (caps);
if (pad == videodrop->srcpad) {
gst_caps_set_simple (newcaps,
"framerate", G_TYPE_DOUBLE, videodrop->from_fps, NULL);
} else {
gst_caps_set_simple (newcaps,
"framerate", G_TYPE_DOUBLE, videodrop->to_fps, NULL);
}
ret = gst_pad_try_set_caps (otherpad, newcaps);
if (GST_PAD_LINK_FAILED (ret)) {
return GST_PAD_LINK_REFUSED;
}
}
return GST_PAD_LINK_OK;
}
static gboolean
gst_overlay_sinkconnect (GstPad * pad, const GstCaps * caps)
{
GstOverlay *overlay;
GstStructure *structure;
overlay = GST_OVERLAY (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &overlay->width);
gst_structure_get_int (structure, "height", &overlay->height);
gst_structure_get_double (structure, "framerate", &overlay->framerate);
/* forward to the next plugin */
return gst_pad_try_set_caps (overlay->srcpad, caps);
}
static GstPadLinkReturn
gst_negotiation_pad_link (GstPad * pad, const GstCaps * caps)
{
GstNegotiation *negotiation = GST_NEGOTIATION (gst_pad_get_parent (pad));
GstPad *otherpad;
GstPadLinkReturn ret;
otherpad = (pad == negotiation->sinkpad) ? negotiation->srcpad :
negotiation->sinkpad;
ret = gst_pad_try_set_caps (otherpad, caps);
GST_ERROR ("pad_link called on %" GST_PTR_FORMAT " with caps %"
GST_PTR_FORMAT ", returning %d", pad, caps, ret);
gst_object_unref (negotiation);
return ret;
}
static gboolean
gst_snapshot_sinkconnect (GstPad * pad, const GstCaps * caps)
{
GstSnapshot *filter;
gdouble fps;
GstStructure *structure;
filter = GST_SNAPSHOT (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "width", &filter->width);
gst_structure_get_int (structure, "height", &filter->height);
gst_structure_get_double (structure, "framerate", &fps);
gst_structure_get_fourcc (structure, "format", &filter->format);
filter->to_bpp = 24;
gst_pad_try_set_caps (filter->srcpad, caps);
return GST_PAD_LINK_OK;
}
static gboolean
gst_median_link (GstPad * pad, const GstCaps * caps)
{
GstMedian *filter = GST_MEDIAN (gst_pad_get_parent (pad));
GstPad *otherpad = (pad == filter->srcpad) ? filter->sinkpad : filter->srcpad;
GstStructure *structure = gst_caps_get_structure (caps, 0);
gint w, h;
GstPadLinkReturn ret;
gst_structure_get_int (structure, "width", &w);
gst_structure_get_int (structure, "height", &h);
ret = gst_pad_try_set_caps (otherpad, caps);
if (GST_PAD_LINK_SUCCESSFUL (ret)) {
filter->width = w;
filter->height = h;
}
gst_object_unref (filter);
return ret;
}
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;
}
static void
gst_tarkindec_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
TarkinDec *tarkindec;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
tarkindec = GST_TARKINDEC (gst_pad_get_parent (pad));
if (!tarkindec->setup) {
GST_ELEMENT_ERROR (tarkindec, CORE, NEGOTATION, (NULL),
("decoder not initialized (input is not tarkin?)"));
if (GST_IS_BUFFER (buf))
gst_buffer_unref (buf);
else
gst_pad_event_default (pad, GST_EVENT (buf));
return;
}
if (GST_IS_EVENT (buf)) {
switch (GST_EVENT_TYPE (buf)) {
case GST_EVENT_EOS:
default:
gst_pad_event_default (pad, GST_EVENT (buf));
break;
}
} else {
gchar *data;
gulong size;
gchar *buffer;
guchar *rgb;
TarkinTime date;
TarkinVideoLayerDesc *layer;
/* data to decode */
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
buffer = ogg_sync_buffer (&tarkindec->oy, size);
memcpy (buffer, data, size);
ogg_sync_wrote (&tarkindec->oy, size);
if (ogg_sync_pageout (&tarkindec->oy, &tarkindec->og)) {
ogg_stream_pagein (&tarkindec->os, &tarkindec->og);
while (ogg_stream_packetout (&tarkindec->os, &tarkindec->op)) {
if (tarkindec->op.e_o_s)
break;
if (tarkindec->nheader < 3) { /* 3 first packets to headerin */
tarkin_synthesis_headerin (&tarkindec->ti, &tarkindec->tc,
&tarkindec->op);
if (tarkindec->nheader == 2) {
tarkin_synthesis_init (tarkindec->tarkin_stream, &tarkindec->ti);
}
tarkindec->nheader++;
} else {
tarkin_synthesis_packetin (tarkindec->tarkin_stream, &tarkindec->op);
while (tarkin_synthesis_frameout (tarkindec->tarkin_stream, &rgb, 0,
&date) == 0) {
GstBuffer *outbuf;
layer = &tarkindec->tarkin_stream->layer->desc;
if (!GST_PAD_CAPS (tarkindec->srcpad)) {
if (gst_pad_try_set_caps (tarkindec->srcpad, GST_CAPS_NEW ("tarkin_raw", "video/x-raw-rgb", "bpp", GST_PROPS_INT (24), "depth", GST_PROPS_INT (24), "endianness", GST_PROPS_INT (G_BYTE_ORDER), "red_mask", GST_PROPS_INT (0xff0000), "green_mask", GST_PROPS_INT (0xff00), "blue_mask", GST_PROPS_INT (0xff), "width", GST_PROPS_INT (layer->width), "height", GST_PROPS_INT (layer->height), "framerate", GST_PROPS_FLOAT (0.) /* FIXME!!! */
)) <= 0) {
GST_ELEMENT_ERROR (tarkindec, CORE, NEGOTATION, (NULL),
("could not output format"));
gst_buffer_unref (buf);
return;
}
}
outbuf = gst_buffer_new ();
GST_BUFFER_DATA (outbuf) = rgb;
GST_BUFFER_SIZE (outbuf) = layer->width * layer->height * 3;
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DONTFREE);
gst_pad_push (tarkindec->srcpad, GST_DATA (outbuf));
tarkin_synthesis_freeframe (tarkindec->tarkin_stream, rgb);
}
}
}
}
gst_buffer_unref (buf);
}
}