/* Check if the element can use this caps */
static gint find_decoder_func( gconstpointer p_p1, gconstpointer p_p2 )
{
GstElementFactory *p_factory;
sink_src_caps_t *p_caps;
p_factory = ( GstElementFactory* )p_p1;
p_caps = ( sink_src_caps_t* )p_p2;
return !( gst_element_factory_can_sink_any_caps( p_factory,
p_caps->p_sinkcaps ) &&
gst_element_factory_can_src_any_caps( p_factory,
p_caps->p_srccaps ));
}
GstCaps* find_input_caps_dutils (GstCaps* available_caps,
GstCaps* wanted_caps,
bool& /*requires_bayer*/,
bool& requires_vidoeconvert,
bool& /*requires_jpegdec*/,
bool& requires_dutils,
bool& requires_biteater)
{
requires_vidoeconvert = true;
GstElementFactory* dutils = gst_element_factory_find("tcamdutils");
if (dutils)
{
// check if only dutils suffice
if (gst_element_factory_can_src_any_caps(dutils, wanted_caps)
&& gst_element_factory_can_sink_any_caps(dutils, available_caps))
{
requires_dutils = true;
gst_object_unref(dutils);
GstElementFactory* biteater = gst_element_factory_find("tcambiteater");
// check if dutils + biteater suffice
if (!tcam_gst_contains_bayer_8_bit(available_caps)
&& ((tcam_gst_contains_bayer_12_bit(available_caps)
|| tcam_gst_contains_bayer_16_bit(available_caps)))
&& gst_element_factory_can_src_any_caps(biteater, wanted_caps))
{
requires_biteater = true;
gst_object_unref(biteater);
return available_caps;
}
else // dutils only
{
gst_object_unref(biteater);
GstCaps* ret;
if (!gst_caps_is_fixed(available_caps))
{
if (!gst_caps_is_empty(wanted_caps) &&
g_strcmp0(gst_caps_to_string(wanted_caps), "NULL") != 0)
{
GstCaps* possible_matches = create_caps_for_formats(available_caps, wanted_caps);
if (!possible_matches || gst_caps_is_empty(possible_matches))
{
tcam_error("No possible matches for dutils.");
return nullptr;
}
ret = gst_caps_intersect(available_caps, possible_matches);
gst_caps_unref(possible_matches);
}
else
{
ret = tcam_gst_find_largest_caps(available_caps);
}
}
else // is fixed
{
ret = gst_caps_copy(available_caps);
}
if (!ret)
{
// TODO not compatible
tcam_error("No intersecting caps between dutils and src");
return nullptr;
}
return ret;
}
gst_object_unref(biteater);
}
gst_object_unref(dutils);
}
tcam_error("Could not create dutils.");
return nullptr;
}
// TODO: bayer and videoconvert should consider eachother
GstCaps* find_input_caps (GstCaps* available_caps,
GstCaps* wanted_caps,
bool& requires_bayer,
bool& requires_vidoeconvert,
bool& requires_jpegdec,
bool& requires_dutils,
bool& requires_biteater,
bool use_dutils
)
{
requires_bayer = false;
requires_vidoeconvert = false;
requires_jpegdec = false;
requires_dutils = false;
requires_biteater = false;
requires_bayer = false;
if (!GST_IS_CAPS(available_caps))
{
return nullptr;
}
if (wanted_caps == nullptr || gst_caps_is_empty(wanted_caps))
{
GST_INFO("No sink caps specified. Continuing with caps from source device.");
wanted_caps = gst_caps_copy(available_caps);
}
// GstCaps* intersect = gst_caps_intersect(available_caps, wanted_caps);
// if (!gst_caps_is_empty(intersect))
// {
// return intersect;
// }
// gst_caps_unref(intersect);
GstElementFactory* dutils = gst_element_factory_find("tcamdutils");
if (use_dutils && dutils)
{
gst_object_unref(dutils);
return find_input_caps_dutils(available_caps,
wanted_caps,
requires_bayer,
requires_vidoeconvert,
requires_jpegdec,
requires_dutils,
requires_biteater);
}
GstElementFactory* debayer = gst_element_factory_find("bayer2rgb");
if (debayer)
{
if (gst_element_factory_can_src_any_caps(debayer, wanted_caps)
&& gst_element_factory_can_sink_any_caps(debayer, available_caps))
{
requires_bayer = true;
// wanted_caps can be fixed, etc.
// thus change name to be compatible to bayer2rgb sink pad
// and create a correct intersection
GstCaps* temp = gst_caps_copy(wanted_caps);
gst_caps_change_name(temp, "video/x-bayer");
GstCaps* ret = gst_caps_intersect(available_caps, temp);
gst_caps_unref(temp);
gst_object_unref(debayer);
return ret;
}
}
gst_object_unref(debayer);
GstElementFactory* convert = gst_element_factory_find("videoconvert");
if (convert)
{
if (gst_element_factory_can_src_any_caps(convert, wanted_caps)
&& gst_element_factory_can_sink_any_caps(convert, available_caps))
{
// this intersection check is to ensure that we can't just pass
// the caps through and really need this additional element
GstCaps* intersect = gst_caps_intersect(available_caps, wanted_caps);
if (!gst_caps_is_empty(intersect))
{
return intersect;
}
gst_caps_unref(intersect);
requires_vidoeconvert = true;
// wanted_caps can be fixed, etc.
GstCaps* in = get_caps_from_element_name("videoconvert", "sink");
// this removes things like jpeg
GstCaps* ret = gst_caps_intersect(available_caps, in);
GstCaps* temp = gst_caps_copy(wanted_caps);
for (unsigned int i = 0; i < gst_caps_get_size(temp); ++i)
{
gst_structure_remove_field(gst_caps_get_structure(temp, i), "format");
}
GstCaps* ret2 = gst_caps_intersect(ret, temp);
gst_caps_unref(in);
gst_caps_unref(ret);
gst_object_unref(convert);
return ret2;
}
gst_object_unref(convert);
}
GstElementFactory* jpegdec = gst_element_factory_find("jpegdec");
if (jpegdec)
{
if (gst_element_factory_can_src_any_caps(jpegdec, wanted_caps)
&& gst_element_factory_can_sink_any_caps(jpegdec, available_caps))
{
requires_jpegdec = true;
requires_vidoeconvert = true;
// wanted_caps can be fixed, etc.
// thus change name to be compatible to jpegdec sink pad
// and create a correct intersection
GstCaps* temp = gst_caps_copy(wanted_caps);
gst_caps_change_name(temp, "image/jpeg");
for (unsigned int i = 0; i < gst_caps_get_size(temp); ++i)
{
gst_structure_remove_field(gst_caps_get_structure(temp, i), "format");
}
GstCaps* ret = gst_caps_intersect(available_caps, temp);
gst_caps_unref(temp);
gst_object_unref(jpegdec);
return ret;
}
gst_object_unref(jpegdec);
}
GstCaps* intersect = gst_caps_intersect(available_caps, wanted_caps);
if (!gst_caps_is_empty(intersect))
{
return intersect;
}
gst_caps_unref(intersect);
return nullptr;
}
