static GstCaps *
gst_capsfilter_transform_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCapsFilter *capsfilter = GST_CAPSFILTER (base);
GstCaps *ret, *filter_caps, *tmp;
GST_OBJECT_LOCK (capsfilter);
filter_caps = gst_caps_ref (capsfilter->filter_caps);
GST_OBJECT_UNLOCK (capsfilter);
if (filter) {
tmp =
gst_caps_intersect_full (filter, filter_caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (filter_caps);
filter_caps = tmp;
}
ret = gst_caps_intersect_full (filter_caps, caps, GST_CAPS_INTERSECT_FIRST);
GST_DEBUG_OBJECT (capsfilter, "input: %" GST_PTR_FORMAT, caps);
GST_DEBUG_OBJECT (capsfilter, "filter: %" GST_PTR_FORMAT, filter);
GST_DEBUG_OBJECT (capsfilter, "caps filter: %" GST_PTR_FORMAT,
filter_caps);
GST_DEBUG_OBJECT (capsfilter, "intersect: %" GST_PTR_FORMAT, ret);
gst_caps_unref (filter_caps);
return ret;
}
static GstCaps *
gst_rtp_mux_getcaps (GstPad * pad, GstRTPMux * mux, GstCaps * filter)
{
GstCaps *caps = NULL;
GstIterator *iter = NULL;
GValue v = { 0 };
GstIteratorResult res;
GstCaps *peercaps;
GstCaps *othercaps;
GstCaps *tcaps;
GstCaps *other_filtered;
peercaps = gst_pad_peer_query_caps (mux->srcpad, filter);
if (peercaps) {
tcaps = gst_pad_get_pad_template_caps (pad);
othercaps = gst_caps_intersect_full (peercaps, tcaps,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
} else {
tcaps = gst_pad_get_pad_template_caps (mux->srcpad);
if (filter)
othercaps = gst_caps_intersect_full (filter, tcaps,
GST_CAPS_INTERSECT_FIRST);
else
othercaps = gst_caps_copy (tcaps);
}
gst_caps_unref (tcaps);
clear_caps (othercaps, FALSE);
other_filtered = gst_caps_copy (othercaps);
clear_caps (other_filtered, TRUE);
g_value_init (&v, GST_TYPE_CAPS);
iter = gst_element_iterate_sink_pads (GST_ELEMENT (mux));
do {
gst_value_set_caps (&v, other_filtered);
res = gst_iterator_fold (iter, same_clock_rate_fold, &v, pad);
gst_iterator_resync (iter);
} while (res == GST_ITERATOR_RESYNC);
gst_iterator_free (iter);
gst_caps_unref (other_filtered);
caps = gst_caps_intersect ((GstCaps *) gst_value_get_caps (&v), othercaps);
g_value_unset (&v);
gst_caps_unref (othercaps);
if (res == GST_ITERATOR_ERROR) {
gst_caps_unref (caps);
caps = gst_caps_new_empty ();
}
return caps;
}
static GstCaps *
gst_alsasink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
GstElementClass *element_class;
GstPadTemplate *pad_template;
GstAlsaSink *sink = GST_ALSA_SINK (bsink);
GstCaps *caps, *templ_caps;
if (sink->handle == NULL) {
GST_DEBUG_OBJECT (sink, "device not open, using template caps");
return NULL; /* base class will get template caps for us */
}
if (sink->cached_caps) {
if (filter) {
caps = gst_caps_intersect_full (filter, sink->cached_caps,
GST_CAPS_INTERSECT_FIRST);
GST_LOG_OBJECT (sink, "Returning cached caps %" GST_PTR_FORMAT " with "
"filter %" GST_PTR_FORMAT " applied: %" GST_PTR_FORMAT,
sink->cached_caps, filter, caps);
return caps;
} else {
GST_LOG_OBJECT (sink, "Returning cached caps %" GST_PTR_FORMAT,
sink->cached_caps);
return gst_caps_ref (sink->cached_caps);
}
}
element_class = GST_ELEMENT_GET_CLASS (sink);
pad_template = gst_element_class_get_pad_template (element_class, "sink");
g_return_val_if_fail (pad_template != NULL, NULL);
templ_caps = gst_pad_template_get_caps (pad_template);
caps = gst_alsa_probe_supported_formats (GST_OBJECT (sink), sink->device,
sink->handle, templ_caps);
gst_caps_unref (templ_caps);
if (caps) {
sink->cached_caps = gst_caps_ref (caps);
}
GST_INFO_OBJECT (sink, "returning caps %" GST_PTR_FORMAT, caps);
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
return intersection;
} else {
return caps;
}
}
static GstCaps *
gst_alsasrc_getcaps (GstBaseSrc * bsrc, GstCaps * filter)
{
GstElementClass *element_class;
GstPadTemplate *pad_template;
GstAlsaSrc *src;
GstCaps *caps, *templ_caps;
src = GST_ALSA_SRC (bsrc);
if (src->handle == NULL) {
GST_DEBUG_OBJECT (src, "device not open, using template caps");
return GST_BASE_SRC_CLASS (parent_class)->get_caps (bsrc, filter);
}
if (src->cached_caps) {
GST_LOG_OBJECT (src, "Returning cached caps");
if (filter)
return gst_caps_intersect_full (filter, src->cached_caps,
GST_CAPS_INTERSECT_FIRST);
else
return gst_caps_ref (src->cached_caps);
}
element_class = GST_ELEMENT_GET_CLASS (src);
pad_template = gst_element_class_get_pad_template (element_class, "src");
g_return_val_if_fail (pad_template != NULL, NULL);
templ_caps = gst_pad_template_get_caps (pad_template);
GST_INFO_OBJECT (src, "template caps %" GST_PTR_FORMAT, templ_caps);
caps = gst_alsa_probe_supported_formats (GST_OBJECT (src),
src->device, src->handle, templ_caps);
gst_caps_unref (templ_caps);
if (caps) {
src->cached_caps = gst_caps_ref (caps);
}
GST_INFO_OBJECT (src, "returning caps %" GST_PTR_FORMAT, caps);
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
return intersection;
} else {
return caps;
}
}
static GstCaps *
gst_amr_parse_sink_getcaps (GstBaseParse * parse, GstCaps * filter)
{
GstCaps *peercaps, *templ;
GstCaps *res;
templ = gst_pad_get_pad_template_caps (GST_BASE_PARSE_SINK_PAD (parse));
peercaps = gst_pad_peer_query_caps (GST_BASE_PARSE_SRC_PAD (parse), filter);
if (peercaps) {
guint i, n;
/* Rename structure names */
peercaps = gst_caps_make_writable (peercaps);
n = gst_caps_get_size (peercaps);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (peercaps, i);
if (gst_structure_has_name (s, "audio/AMR"))
gst_structure_set_name (s, "audio/x-amr-nb-sh");
else
gst_structure_set_name (s, "audio/x-amr-wb-sh");
}
res = gst_caps_intersect_full (peercaps, templ, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
res = gst_caps_make_writable (res);
/* Append the template caps because we still want to accept
* caps without any fields in the case upstream does not
* know anything.
*/
gst_caps_append (res, templ);
} else {
res = templ;
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, res, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (res);
res = intersection;
}
return res;
}
static GstCaps *
gst_ac3_parse_get_sink_caps (GstBaseParse * parse, GstCaps * filter)
{
GstCaps *peercaps, *templ;
GstCaps *res;
/* FIXME: handle filter */
templ = gst_pad_get_pad_template_caps (GST_BASE_PARSE_SINK_PAD (parse)),
peercaps = gst_pad_get_allowed_caps (GST_BASE_PARSE_SRC_PAD (parse));
if (peercaps) {
guint i, n;
/* Remove the framed and alignment field. We can convert
* between different alignments. */
peercaps = gst_caps_make_writable (peercaps);
n = gst_caps_get_size (peercaps);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (peercaps, i);
gst_structure_remove_field (s, "framed");
gst_structure_remove_field (s, "alignment");
}
res = gst_caps_intersect_full (peercaps, templ, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
gst_caps_unref (templ);
} else {
res = templ;
}
return res;
}
static GstCaps *
gst_pixbufscale_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *ret;
int i;
ret = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (ret); i++) {
GstStructure *structure = gst_caps_get_structure (ret, i);
gst_structure_set (structure,
"width", GST_TYPE_INT_RANGE, 16, 4096,
"height", GST_TYPE_INT_RANGE, 16, 4096, NULL);
gst_structure_remove_field (structure, "pixel-aspect-ratio");
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ret);
ret = intersection;
}
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
static GstCaps *
gst_decklink_audio_src_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
{
GstDecklinkAudioSrc *self = GST_DECKLINK_AUDIO_SRC_CAST (bsrc);
GstCaps *caps;
// We don't support renegotiation
caps = gst_pad_get_current_caps (GST_BASE_SRC_PAD (bsrc));
if (!caps) {
GstCaps *channel_filter, *templ;
templ = gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (bsrc));
channel_filter =
gst_caps_new_simple ("audio/x-raw", "channels", G_TYPE_INT,
self->channels, NULL);
caps = gst_caps_intersect (channel_filter, templ);
gst_caps_unref (channel_filter);
gst_caps_unref (templ);
}
if (filter) {
GstCaps *tmp =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = tmp;
}
return caps;
}
static GstCaps *
gst_gl_filter_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *newcaps, *result;
if (direction == GST_PAD_SINK)
newcaps =
gst_static_pad_template_get_caps (&gst_gl_filter_src_pad_template);
else if (direction == GST_PAD_SRC)
newcaps =
gst_static_pad_template_get_caps (&gst_gl_filter_sink_pad_template);
else
newcaps = gst_caps_new_any ();
if (filter) {
result =
gst_caps_intersect_full (filter, newcaps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (newcaps);
newcaps = result;
}
GST_DEBUG_OBJECT (bt, "returning caps: %" GST_PTR_FORMAT, newcaps);
return newcaps;
}
static GstCaps *
gst_pvrvideosink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
GstPVRVideoSink *pvrvideosink;
GstCaps *caps;
GST_DEBUG_OBJECT (bsink, "filter:%" GST_PTR_FORMAT, filter);
pvrvideosink = GST_PVRVIDEOSINK (bsink);
/* FIXME : If we have curently configured caps, we should return those
* intersected with the filter*/
caps = gst_pad_get_pad_template_caps (GST_BASE_SINK (pvrvideosink)->sinkpad);
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = intersection;
}
GST_DEBUG_OBJECT (bsink, "Returning %" GST_PTR_FORMAT, caps);
return caps;
}
/* Based on gstbasetextoverlay.c */
static GstCaps *
gst_overlay_composition_src_query_caps (GstOverlayComposition * self,
GstCaps * filter)
{
GstCaps *peer_caps = NULL, *caps = NULL, *overlay_filter = NULL;
if (filter) {
/* duplicate filter caps which contains the composition into one version
* with the meta and one without. Filter the other caps by the software
* caps */
GstCaps *sw_caps = gst_static_caps_get (&overlay_composition_caps);
overlay_filter =
intersect_by_feature (filter,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION, sw_caps);
gst_caps_unref (sw_caps);
}
peer_caps = gst_pad_peer_query_caps (self->sinkpad, overlay_filter);
if (overlay_filter)
gst_caps_unref (overlay_filter);
if (peer_caps) {
GST_DEBUG_OBJECT (self->srcpad, "peer caps %" GST_PTR_FORMAT, peer_caps);
if (gst_caps_is_any (peer_caps)) {
/* if peer returns ANY caps, return filtered sink pad template caps */
caps = gst_caps_copy (gst_pad_get_pad_template_caps (self->sinkpad));
} else {
/* return upstream caps + composition feature + upstream caps
* filtered by the software caps. */
GstCaps *sw_caps = gst_static_caps_get (&overlay_composition_caps);
caps = add_feature_and_intersect (peer_caps,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION, sw_caps);
gst_caps_unref (sw_caps);
}
gst_caps_unref (peer_caps);
} else {
/* no peer, our padtemplate is enough then */
caps = gst_pad_get_pad_template_caps (self->srcpad);
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = intersection;
}
GST_DEBUG_OBJECT (self->srcpad, "returning %" GST_PTR_FORMAT, caps);
return caps;
}
static GstCaps *
transform_caps_ct2 (GstBaseTransform * trans, GstPadDirection dir,
GstCaps * caps, GstCaps * filter)
{
GstCaps *res;
if (dir == GST_PAD_SINK) {
/* everything on the sinkpad can be transformed to the output formats */
if (set_caps_ct2_case == 1)
res = gst_caps_new_empty_simple ("foo/x-bar");
else
res = gst_caps_new_empty_simple ("baz/x-foo");
} else {
/* all on the srcpad can be transformed to the format of the sinkpad */
res = gst_caps_new_empty_simple ("foo/x-bar");
}
if (filter) {
GstCaps *temp =
gst_caps_intersect_full (filter, res, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (res);
res = temp;
}
return res;
}
static GstCaps *
gst_oss_sink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
GstOssSink *osssink;
GstCaps *caps;
osssink = GST_OSSSINK (bsink);
if (osssink->fd == -1) {
caps = gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (bsink));
} else if (osssink->probed_caps) {
caps = gst_caps_ref (osssink->probed_caps);
} else {
caps = gst_oss_helper_probe_caps (osssink->fd);
if (caps && !gst_caps_is_empty (caps)) {
osssink->probed_caps = gst_caps_ref (caps);
}
}
if (filter && caps) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
return intersection;
} else {
return caps;
}
}
static GstCaps *
gst_inter_audio_src_get_caps (GstBaseSrc * src, GstCaps * filter)
{
GstInterAudioSrc *interaudiosrc = GST_INTER_AUDIO_SRC (src);
GstCaps *caps;
GST_DEBUG_OBJECT (interaudiosrc, "get_caps");
if (!interaudiosrc->surface)
return GST_BASE_SRC_CLASS (parent_class)->get_caps (src, filter);
g_mutex_lock (&interaudiosrc->surface->mutex);
if (interaudiosrc->surface->audio_info.finfo) {
caps = gst_audio_info_to_caps (&interaudiosrc->surface->audio_info);
if (filter) {
GstCaps *tmp;
tmp = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = tmp;
}
} else {
caps = NULL;
}
g_mutex_unlock (&interaudiosrc->surface->mutex);
if (caps)
return caps;
else
return GST_BASE_SRC_CLASS (parent_class)->get_caps (src, filter);
}
static GstCaps *
gst_dshowvideosrc_get_caps (GstBaseSrc * basesrc, GstCaps * filter)
{
GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (basesrc);
GstCaps *caps;
if (src->caps) {
caps = gst_caps_ref (src->caps);
} else {
caps = gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (src));
}
if (caps) {
GstCaps *filtcaps;
if (filter) {
filtcaps = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
} else {
filtcaps = gst_caps_ref (caps);
}
gst_caps_unref (caps);
return filtcaps;
}
return NULL;
}
/* Generic code for now, requires changes in future when we
* add hardware query for supported formats, Framerate control etc */
static GstCaps *
gst_msdkvpp_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *out_caps;
GST_DEBUG_OBJECT (trans,
"Transforming caps %" GST_PTR_FORMAT " in direction %s", caps,
(direction == GST_PAD_SINK) ? "sink" : "src");
if (direction == GST_PAD_SRC)
out_caps = gst_static_pad_template_get_caps (&gst_msdkvpp_sink_factory);
else
out_caps = gst_static_pad_template_get_caps (&gst_msdkvpp_src_factory);
if (out_caps && filter) {
GstCaps *intersection;
intersection = gst_caps_intersect_full (out_caps, filter,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (out_caps);
out_caps = intersection;
}
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, out_caps);
return out_caps;
}
/* Get the intersection of parser caps and available (sorted) decoders */
static GstCaps *
get_parser_caps_filter (GstDecodebin3 * dbin, GstCaps * caps)
{
GList *tmp;
GstCaps *filter_caps = gst_caps_new_empty ();
g_mutex_lock (&dbin->factories_lock);
gst_decode_bin_update_factories_list (dbin);
for (tmp = dbin->decoder_factories; tmp; tmp = tmp->next) {
GstElementFactory *factory = (GstElementFactory *) tmp->data;
GstCaps *tcaps, *intersection;
const GList *tmps;
GST_LOG ("Trying factory %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
for (tmps = gst_element_factory_get_static_pad_templates (factory); tmps;
tmps = tmps->next) {
GstStaticPadTemplate *st = (GstStaticPadTemplate *) tmps->data;
if (st->direction != GST_PAD_SINK || st->presence != GST_PAD_ALWAYS)
continue;
tcaps = gst_static_pad_template_get_caps (st);
intersection =
gst_caps_intersect_full (tcaps, caps, GST_CAPS_INTERSECT_FIRST);
filter_caps = gst_caps_merge (filter_caps, intersection);
gst_caps_unref (tcaps);
}
}
g_mutex_unlock (&dbin->factories_lock);
GST_DEBUG_OBJECT (dbin, "Got filter caps %" GST_PTR_FORMAT, filter_caps);
return filter_caps;
}
/**
* @brief Get pad caps for caps negotiation.
*/
static GstCaps *
gst_tensor_aggregator_query_caps (GstTensorAggregator * self, GstPad * pad,
GstCaps * filter)
{
GstCaps *caps;
GstTensorConfig config;
/* tensor config info for given pad */
if (pad == self->sinkpad) {
config = self->in_config;
} else {
config = self->out_config;
}
/* caps from tensor config info */
caps = gst_tensor_caps_from_config (&config);
silent_debug_caps (caps, "caps");
silent_debug_caps (filter, "filter");
if (caps && filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = intersection;
}
return caps;
}
static GstCaps *
gst_app_src_internal_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
{
GstAppSrc *appsrc = GST_APP_SRC (bsrc);
GstCaps *caps;
GST_OBJECT_LOCK (appsrc);
if ((caps = appsrc->priv->caps))
gst_caps_ref (caps);
GST_OBJECT_UNLOCK (appsrc);
if (filter) {
if (caps) {
GstCaps *intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = intersection;
} else {
caps = gst_caps_ref (filter);
}
}
GST_DEBUG_OBJECT (appsrc, "caps: %" GST_PTR_FORMAT, caps);
return caps;
}
static GstCaps *
gst_decklink_video_sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
{
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (bsink);
GstCaps *mode_caps, *caps;
if (self->mode == GST_DECKLINK_MODE_AUTO
&& self->video_format == GST_DECKLINK_VIDEO_FORMAT_AUTO)
mode_caps = gst_decklink_mode_get_template_caps (FALSE);
else if (self->video_format == GST_DECKLINK_VIDEO_FORMAT_AUTO)
mode_caps = gst_decklink_mode_get_caps_all_formats (self->mode, FALSE);
else if (self->mode == GST_DECKLINK_MODE_AUTO)
mode_caps =
gst_decklink_pixel_format_get_caps (gst_decklink_pixel_format_from_type
(self->video_format), FALSE);
else
mode_caps =
gst_decklink_mode_get_caps (self->mode,
gst_decklink_pixel_format_from_type (self->video_format), FALSE);
mode_caps = gst_caps_make_writable (mode_caps);
/* For output we support any framerate and only really care about timestamps */
gst_caps_map_in_place (mode_caps, reset_framerate, NULL);
if (filter) {
caps =
gst_caps_intersect_full (filter, mode_caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (mode_caps);
} else {
caps = mode_caps;
}
return caps;
}
static GstCaps *
gst_h263_parse_get_sink_caps (GstBaseParse * parse)
{
GstCaps *peercaps;
GstCaps *res;
peercaps = gst_pad_get_allowed_caps (GST_BASE_PARSE_SRC_PAD (parse));
if (peercaps) {
guint i, n;
/* Remove parsed field */
peercaps = gst_caps_make_writable (peercaps);
n = gst_caps_get_size (peercaps);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (peercaps, i);
gst_structure_remove_field (s, "parsed");
}
res =
gst_caps_intersect_full (peercaps,
gst_pad_get_pad_template_caps (GST_BASE_PARSE_SINK_PAD (parse)),
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
} else {
res =
gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_PARSE_SINK_PAD
(parse)));
}
return res;
}
static GstCaps *
gst_decklink_video_src_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
{
GstDecklinkVideoSrc *self = GST_DECKLINK_VIDEO_SRC_CAST (bsrc);
GstCaps *mode_caps, *caps;
BMDPixelFormat format;
GstDecklinkModeEnum mode;
g_mutex_lock (&self->lock);
mode = self->caps_mode;
format = self->caps_format;
g_mutex_unlock (&self->lock);
mode_caps = gst_decklink_mode_get_caps (mode, format);
if (filter) {
caps =
gst_caps_intersect_full (filter, mode_caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (mode_caps);
} else {
caps = mode_caps;
}
return caps;
}
static GstCaps *
gst_frei0r_mixer_get_caps (GstFrei0rMixer * self, GstPad * pad,
GstCaps * filter)
{
GstCaps *caps = NULL;
if (self->caps) {
caps = gst_caps_ref (self->caps);
} else {
GstCaps *tmp;
caps = gst_pad_get_pad_template_caps (self->src);
if (filter) {
tmp = caps;
caps = gst_caps_intersect_full (tmp, filter, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
}
caps = gst_frei0r_mixer_query_pad_caps (self->src, pad, caps);
caps = gst_frei0r_mixer_query_pad_caps (self->sink0, pad, caps);
caps = gst_frei0r_mixer_query_pad_caps (self->sink1, pad, caps);
if (self->sink2)
caps = gst_frei0r_mixer_query_pad_caps (self->sink2, pad, caps);
}
return caps;
}
static GstCaps *
gst_rtp_g722_pay_getcaps (GstRTPBasePayload * rtppayload, GstPad * pad,
GstCaps * filter)
{
GstCaps *otherpadcaps;
GstCaps *caps;
otherpadcaps = gst_pad_get_allowed_caps (rtppayload->srcpad);
caps = gst_pad_get_pad_template_caps (pad);
if (otherpadcaps) {
if (!gst_caps_is_empty (otherpadcaps)) {
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps, "channels", G_TYPE_INT, 1, NULL);
gst_caps_set_simple (caps, "rate", G_TYPE_INT, 16000, NULL);
}
gst_caps_unref (otherpadcaps);
}
if (filter) {
GstCaps *tmp;
GST_DEBUG_OBJECT (rtppayload, "Intersect %" GST_PTR_FORMAT " and filter %"
GST_PTR_FORMAT, caps, filter);
tmp = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = tmp;
}
return caps;
}
static GstCaps *
gst_shmdata_src_getcaps (GstBaseSrc * src, GstCaps * filter)
{
GstShmdataSrc *shmdatasrc;
GstCaps *caps, *result;
shmdatasrc = GST_SHMDATA_SRC (src);
GST_OBJECT_LOCK (src);
if ((caps = shmdatasrc->caps))
gst_caps_ref (caps);
GST_OBJECT_UNLOCK (src);
if (caps) {
if (filter) {
result = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
} else {
result = caps;
}
} else {
result = (filter) ? gst_caps_ref (filter) : gst_caps_new_any ();
}
return result;
}
/**
* gst_dvbsub_overlay_intersect_by_feature:
*
* Creates a new #GstCaps based on the following filtering rule.
*
* For each individual caps contained in given caps, if the
* caps uses the given caps feature, keep a version of the caps
* with the feature and an another one without. Otherwise, intersect
* the caps with the given filter.
*
* Returns: the new #GstCaps
*/
static GstCaps *
gst_dvbsub_overlay_intersect_by_feature (GstCaps * caps,
const gchar * feature, GstCaps * filter)
{
int i, caps_size;
GstCaps *new_caps;
new_caps = gst_caps_new_empty ();
caps_size = gst_caps_get_size (caps);
for (i = 0; i < caps_size; i++) {
GstStructure *caps_structure = gst_caps_get_structure (caps, i);
GstCapsFeatures *caps_features =
gst_caps_features_copy (gst_caps_get_features (caps, i));
GstCaps *filtered_caps;
GstCaps *simple_caps =
gst_caps_new_full (gst_structure_copy (caps_structure), NULL);
gst_caps_set_features (simple_caps, 0, caps_features);
if (gst_caps_features_contains (caps_features, feature)) {
gst_caps_append (new_caps, gst_caps_copy (simple_caps));
gst_caps_features_remove (caps_features, feature);
filtered_caps = gst_caps_ref (simple_caps);
} else {
filtered_caps = gst_caps_intersect_full (simple_caps, filter,
GST_CAPS_INTERSECT_FIRST);
}
gst_caps_unref (simple_caps);
gst_caps_append (new_caps, filtered_caps);
}
return new_caps;
}
static GstCaps *
gst_ac3_parse_get_sink_caps (GstBaseParse * parse, GstCaps * filter)
{
GstCaps *peercaps, *templ;
GstCaps *res;
templ = gst_pad_get_pad_template_caps (GST_BASE_PARSE_SINK_PAD (parse));
peercaps = gst_pad_peer_query_caps (GST_BASE_PARSE_SRC_PAD (parse), filter);
if (peercaps) {
guint i, n;
/* Remove the framed and alignment field. We can convert
* between different alignments. */
peercaps = gst_caps_make_writable (peercaps);
n = gst_caps_get_size (peercaps);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (peercaps, i);
gst_structure_remove_field (s, "framed");
gst_structure_remove_field (s, "alignment");
}
res = gst_caps_intersect_full (peercaps, templ, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
res = gst_caps_make_writable (res);
/* Append the template caps because we still want to accept
* caps without any fields in the case upstream does not
* know anything.
*/
gst_caps_append (res, templ);
} else {
res = templ;
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, res, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (res);
res = intersection;
}
return res;
}
static GstCaps *
gst_rtp_opus_pay_getcaps (GstRTPBasePayload * payload,
GstPad * pad, GstCaps * filter)
{
GstCaps *caps, *peercaps, *tcaps;
GstStructure *s;
const gchar *stereo;
if (pad == GST_RTP_BASE_PAYLOAD_SRCPAD (payload))
return
GST_RTP_BASE_PAYLOAD_CLASS (gst_rtp_opus_pay_parent_class)->get_caps
(payload, pad, filter);
tcaps = gst_pad_get_pad_template_caps (GST_RTP_BASE_PAYLOAD_SRCPAD (payload));
peercaps = gst_pad_peer_query_caps (GST_RTP_BASE_PAYLOAD_SRCPAD (payload),
tcaps);
gst_caps_unref (tcaps);
if (!peercaps)
return
GST_RTP_BASE_PAYLOAD_CLASS (gst_rtp_opus_pay_parent_class)->get_caps
(payload, pad, filter);
if (gst_caps_is_empty (peercaps))
return peercaps;
caps = gst_pad_get_pad_template_caps (GST_RTP_BASE_PAYLOAD_SINKPAD (payload));
s = gst_caps_get_structure (peercaps, 0);
stereo = gst_structure_get_string (s, "stereo");
if (stereo != NULL) {
caps = gst_caps_make_writable (caps);
if (!strcmp (stereo, "1")) {
GstCaps *caps2 = gst_caps_copy (caps);
gst_caps_set_simple (caps, "channels", G_TYPE_INT, 2, NULL);
gst_caps_set_simple (caps2, "channels", G_TYPE_INT, 1, NULL);
caps = gst_caps_merge (caps, caps2);
} else if (!strcmp (stereo, "0")) {
GstCaps *caps2 = gst_caps_copy (caps);
gst_caps_set_simple (caps, "channels", G_TYPE_INT, 1, NULL);
gst_caps_set_simple (caps2, "channels", G_TYPE_INT, 2, NULL);
caps = gst_caps_merge (caps, caps2);
}
}
gst_caps_unref (peercaps);
if (filter) {
GstCaps *tmp = gst_caps_intersect_full (caps, filter,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = tmp;
}
GST_DEBUG_OBJECT (payload, "Returning caps: %" GST_PTR_FORMAT, caps);
return caps;
}
static GstCaps *
gst_decklink_audio_sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
{
GstDecklinkAudioSink *self = GST_DECKLINK_AUDIO_SINK_CAST (bsink);
GstCaps *caps;
if ((caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (bsink))))
return caps;
caps = gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (bsink));
GST_OBJECT_LOCK (self);
if (self->output && self->output->attributes) {
int64_t max_channels = 0;
HRESULT ret;
GstStructure *s;
GValue arr = G_VALUE_INIT;
GValue v = G_VALUE_INIT;
ret =
self->output->attributes->GetInt (BMDDeckLinkMaximumAudioChannels,
&max_channels);
/* 2 should always be supported */
if (ret != S_OK) {
max_channels = 2;
}
caps = gst_caps_make_writable (caps);
s = gst_caps_get_structure (caps, 0);
g_value_init (&arr, GST_TYPE_LIST);
g_value_init (&v, G_TYPE_INT);
if (max_channels >= 16) {
g_value_set_int (&v, 16);
gst_value_list_append_value (&arr, &v);
}
if (max_channels >= 8) {
g_value_set_int (&v, 8);
gst_value_list_append_value (&arr, &v);
}
g_value_set_int (&v, 2);
gst_value_list_append_value (&arr, &v);
gst_structure_set_value (s, "channels", &arr);
g_value_unset (&v);
g_value_unset (&arr);
}
GST_OBJECT_UNLOCK (self);
if (filter) {
GstCaps *intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = intersection;
}
return caps;
}
static GstCaps *
gst_video_scale_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *ret;
GstStructure *structure;
GstCapsFeatures *features;
gint i, n;
GST_DEBUG_OBJECT (trans,
"Transforming caps %" GST_PTR_FORMAT " in direction %s", caps,
(direction == GST_PAD_SINK) ? "sink" : "src");
ret = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
structure = gst_caps_get_structure (caps, i);
features = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (ret, structure, features))
continue;
/* make copy */
structure = gst_structure_copy (structure);
/* If the features are non-sysmem we can only do passthrough */
if (!gst_caps_features_is_any (features)
&& gst_caps_features_is_equal (features,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY)) {
gst_structure_set (structure, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
/* if pixel aspect ratio, make a range of it */
if (gst_structure_has_field (structure, "pixel-aspect-ratio")) {
gst_structure_set (structure, "pixel-aspect-ratio",
GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
}
}
gst_caps_append_structure_full (ret, structure,
gst_caps_features_copy (features));
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ret);
ret = intersection;
}
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
