static gboolean
gst_vdp_vpp_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstVdpVideoPostProcess *vpp =
GST_VDP_VIDEO_POST_PROCESS (gst_pad_get_parent (pad));
GstStructure *structure;
GstCaps *output_caps, *allowed_caps, *src_caps;
gboolean res;
/* extract interlaced flag */
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_boolean (structure, "interlaced", &vpp->interlaced);
allowed_caps = gst_pad_get_allowed_caps (vpp->srcpad);
structure = gst_caps_get_structure (allowed_caps, 0);
output_caps = gst_vdp_video_to_output_caps (caps);
src_caps = gst_caps_intersect (output_caps, allowed_caps);
gst_caps_truncate (src_caps);
if (gst_caps_is_empty (src_caps))
goto invalid_caps;
GST_DEBUG ("output_caps: %" GST_PTR_FORMAT " allowed_caps: %" GST_PTR_FORMAT
" src_caps: %" GST_PTR_FORMAT, output_caps, allowed_caps, src_caps);
gst_caps_unref (output_caps);
gst_caps_unref (allowed_caps);
if (gst_vdp_vpp_is_interlaced (vpp)) {
gint fps_n, fps_d;
structure = gst_caps_get_structure (src_caps, 0);
if (!gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d)) {
gst_caps_unref (src_caps);
goto invalid_caps;
}
gst_fraction_double (&fps_n, &fps_d);
gst_structure_set (structure, "framerate", GST_TYPE_FRACTION, fps_n, fps_d,
NULL);
gst_structure_remove_field (structure, "interlaced");
vpp->field_duration = gst_util_uint64_scale (GST_SECOND, fps_d, fps_n);
}
res = gst_pad_set_caps (vpp->srcpad, src_caps);
done:
gst_object_unref (vpp);
return res;
invalid_caps:
GST_ERROR_OBJECT (vpp, "invalid caps: %" GST_PTR_FORMAT, caps);
res = FALSE;
goto done;
}
static gboolean
gst_vdp_vpp_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstVdpVideoPostProcess *vpp =
GST_VDP_VIDEO_POST_PROCESS (gst_pad_get_parent (pad));
GstStructure *structure;
GstCaps *video_caps = NULL;
gboolean res = FALSE;
GstCaps *allowed_caps, *output_caps, *src_caps;
/* check if the input is non native */
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "video/x-raw-yuv")) {
if (!gst_structure_get_fourcc (structure, "format", &vpp->fourcc))
goto done;
vpp->native_input = FALSE;
video_caps = gst_vdp_yuv_to_video_caps (caps);
if (!video_caps)
goto done;
if (!vpp->vpool)
vpp->vpool = gst_vdp_video_buffer_pool_new (vpp->device);
gst_vdp_buffer_pool_set_caps (vpp->vpool, video_caps);
} else {
vpp->native_input = TRUE;
video_caps = gst_caps_ref (caps);
if (vpp->vpool) {
g_object_unref (vpp->vpool);
vpp->vpool = NULL;
}
}
structure = gst_caps_get_structure (video_caps, 0);
if (!gst_structure_get_int (structure, "width", &vpp->width) ||
!gst_structure_get_int (structure, "height", &vpp->height) ||
!gst_structure_get_int (structure, "chroma-type",
(gint *) & vpp->chroma_type))
goto done;
/* get interlaced flag */
gst_structure_get_boolean (structure, "interlaced", &vpp->interlaced);
/* extract par */
if (gst_structure_has_field_typed (structure, "pixel-aspect-ratio",
GST_TYPE_FRACTION)) {
gst_structure_get_fraction (structure, "pixel-aspect-ratio", &vpp->par_n,
&vpp->par_d);
vpp->got_par = TRUE;
} else
vpp->got_par = FALSE;
allowed_caps = gst_pad_get_allowed_caps (vpp->srcpad);
if (G_UNLIKELY (!allowed_caps))
goto null_allowed_caps;
if (G_UNLIKELY (gst_caps_is_empty (allowed_caps)))
goto empty_allowed_caps;
GST_DEBUG ("allowed_caps: %" GST_PTR_FORMAT, allowed_caps);
output_caps = gst_vdp_video_to_output_caps (video_caps);
src_caps = gst_caps_intersect (output_caps, allowed_caps);
gst_caps_unref (allowed_caps);
gst_caps_unref (output_caps);
if (gst_caps_is_empty (src_caps))
goto not_negotiated;
gst_pad_fixate_caps (vpp->srcpad, src_caps);
if (gst_vdp_vpp_is_interlaced (vpp)) {
gint fps_n, fps_d;
if (gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d)) {
gst_fraction_double (&fps_n, &fps_d);
gst_caps_set_simple (src_caps, "framerate", GST_TYPE_FRACTION, fps_n,
fps_d, NULL);
vpp->field_duration = gst_util_uint64_scale (GST_SECOND, fps_d, fps_n);
}
gst_caps_set_simple (src_caps, "interlaced", G_TYPE_BOOLEAN, FALSE, NULL);
}
GST_DEBUG ("src_caps: %" GST_PTR_FORMAT, src_caps);
res = gst_pad_set_caps (vpp->srcpad, src_caps);
gst_caps_unref (src_caps);
done:
gst_object_unref (vpp);
if (video_caps)
gst_caps_unref (video_caps);
return res;
null_allowed_caps:
GST_ERROR_OBJECT (vpp, "Got null from gst_pad_get_allowed_caps");
goto done;
empty_allowed_caps:
GST_ERROR_OBJECT (vpp, "Got EMPTY caps from gst_pad_get_allowed_caps");
gst_caps_unref (allowed_caps);
goto done;
not_negotiated:
gst_caps_unref (src_caps);
GST_ERROR_OBJECT (vpp, "Couldn't find suitable output format");
goto done;
}
static GstCaps *
gst_deinterlace2_getcaps (GstPad * pad)
{
GstCaps *ret;
GstDeinterlace2 *self = GST_DEINTERLACE2 (gst_pad_get_parent (pad));
GstPad *otherpad;
gint len;
const GstCaps *ourcaps;
GstCaps *peercaps;
GST_OBJECT_LOCK (self);
otherpad = (pad == self->srcpad) ? self->sinkpad : self->srcpad;
ourcaps = gst_pad_get_pad_template_caps (pad);
peercaps = gst_pad_peer_get_caps (otherpad);
if (peercaps) {
ret = gst_caps_intersect (ourcaps, peercaps);
gst_caps_unref (peercaps);
} else {
ret = gst_caps_copy (ourcaps);
}
GST_OBJECT_UNLOCK (self);
if (self->fields == GST_DEINTERLACE2_ALL) {
for (len = gst_caps_get_size (ret); len > 0; len--) {
GstStructure *s = gst_caps_get_structure (ret, len - 1);
const GValue *val;
val = gst_structure_get_value (s, "framerate");
if (!val)
continue;
if (G_VALUE_TYPE (val) == GST_TYPE_FRACTION) {
gint n, d;
n = gst_value_get_fraction_numerator (val);
d = gst_value_get_fraction_denominator (val);
if (!gst_fraction_double (&n, &d, pad != self->srcpad)) {
goto error;
}
gst_structure_set (s, "framerate", GST_TYPE_FRACTION, n, d, NULL);
} else if (G_VALUE_TYPE (val) == GST_TYPE_FRACTION_RANGE) {
const GValue *min, *max;
GValue nrange = { 0, }, nmin = {
0,}, nmax = {
0,};
gint n, d;
g_value_init (&nrange, GST_TYPE_FRACTION_RANGE);
g_value_init (&nmin, GST_TYPE_FRACTION);
g_value_init (&nmax, GST_TYPE_FRACTION);
min = gst_value_get_fraction_range_min (val);
max = gst_value_get_fraction_range_max (val);
n = gst_value_get_fraction_numerator (min);
d = gst_value_get_fraction_denominator (min);
if (!gst_fraction_double (&n, &d, pad != self->srcpad)) {
g_value_unset (&nrange);
g_value_unset (&nmax);
g_value_unset (&nmin);
goto error;
}
gst_value_set_fraction (&nmin, n, d);
n = gst_value_get_fraction_numerator (max);
d = gst_value_get_fraction_denominator (max);
if (!gst_fraction_double (&n, &d, pad != self->srcpad)) {
g_value_unset (&nrange);
g_value_unset (&nmax);
g_value_unset (&nmin);
goto error;
}
gst_value_set_fraction (&nmax, n, d);
gst_value_set_fraction_range (&nrange, &nmin, &nmax);
gst_structure_set_value (s, "framerate", &nrange);
g_value_unset (&nmin);
g_value_unset (&nmax);
g_value_unset (&nrange);
} else if (G_VALUE_TYPE (val) == GST_TYPE_LIST) {
const GValue *lval;
GValue nlist = { 0, };
GValue nval = { 0, };
gint i;
g_value_init (&nlist, GST_TYPE_LIST);
for (i = gst_value_list_get_size (val); i > 0; i--) {
gint n, d;
lval = gst_value_list_get_value (val, i);
if (G_VALUE_TYPE (lval) != GST_TYPE_FRACTION)
continue;
n = gst_value_get_fraction_numerator (lval);
d = gst_value_get_fraction_denominator (lval);
/* Double/Half the framerate but if this fails simply
* skip this value from the list */
if (!gst_fraction_double (&n, &d, pad != self->srcpad)) {
continue;
}
g_value_init (&nval, GST_TYPE_FRACTION);
gst_value_set_fraction (&nval, n, d);
gst_value_list_append_value (&nlist, &nval);
g_value_unset (&nval);
}
gst_structure_set_value (s, "framerate", &nlist);
g_value_unset (&nlist);
}
}
}
GST_DEBUG_OBJECT (pad, "Returning caps %" GST_PTR_FORMAT, ret);
return ret;
error:
GST_ERROR_OBJECT (pad, "Unable to transform peer caps");
gst_caps_unref (ret);
return NULL;
}
static gboolean
gst_deinterlace2_setcaps (GstPad * pad, GstCaps * caps)
{
gboolean res = TRUE;
GstDeinterlace2 *self = GST_DEINTERLACE2 (gst_pad_get_parent (pad));
GstPad *otherpad;
GstStructure *structure;
GstVideoFormat fmt;
guint32 fourcc;
GstCaps *othercaps;
otherpad = (pad == self->srcpad) ? self->sinkpad : self->srcpad;
structure = gst_caps_get_structure (caps, 0);
res = gst_structure_get_int (structure, "width", &self->frame_width);
res &= gst_structure_get_int (structure, "height", &self->frame_height);
res &=
gst_structure_get_fraction (structure, "framerate", &self->frame_rate_n,
&self->frame_rate_d);
res &= gst_structure_get_fourcc (structure, "format", &fourcc);
/* TODO: get interlaced, field_layout, field_order */
if (!res)
goto invalid_caps;
if (self->fields == GST_DEINTERLACE2_ALL) {
gint fps_n = self->frame_rate_n, fps_d = self->frame_rate_d;
if (!gst_fraction_double (&fps_n, &fps_d, otherpad != self->srcpad))
goto invalid_caps;
othercaps = gst_caps_copy (caps);
gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION, fps_n,
fps_d, NULL);
} else {
othercaps = gst_caps_ref (caps);
}
if (!gst_pad_set_caps (otherpad, othercaps))
goto caps_not_accepted;
gst_caps_unref (othercaps);
/* TODO: introduce self->field_stride */
self->field_height = self->frame_height / 2;
fmt = gst_video_format_from_fourcc (fourcc);
/* TODO: only true if fields are subbuffers of interlaced frames,
change when the buffer-fields concept has landed */
self->field_stride =
gst_video_format_get_row_stride (fmt, 0, self->frame_width) * 2;
self->output_stride =
gst_video_format_get_row_stride (fmt, 0, self->frame_width);
/* in bytes */
self->line_length =
gst_video_format_get_row_stride (fmt, 0, self->frame_width);
self->frame_size =
gst_video_format_get_size (fmt, self->frame_width, self->frame_height);
if (self->fields == GST_DEINTERLACE2_ALL && otherpad == self->srcpad)
self->field_duration =
gst_util_uint64_scale (GST_SECOND, self->frame_rate_d,
self->frame_rate_n);
else
self->field_duration =
gst_util_uint64_scale (GST_SECOND, self->frame_rate_d,
2 * self->frame_rate_n);
GST_DEBUG_OBJECT (self, "Set caps: %" GST_PTR_FORMAT, caps);
done:
gst_object_unref (self);
return res;
invalid_caps:
res = FALSE;
GST_ERROR_OBJECT (pad, "Invalid caps: %" GST_PTR_FORMAT, caps);
goto done;
caps_not_accepted:
res = FALSE;
GST_ERROR_OBJECT (pad, "Caps not accepted: %" GST_PTR_FORMAT, othercaps);
gst_caps_unref (othercaps);
goto done;
}
