static GstCaps *
mxf_up_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
{
MXFMetadataGenericPictureEssenceDescriptor *p = NULL;
MXFMetadataCDCIPictureEssenceDescriptor *c = NULL;
MXFMetadataRGBAPictureEssenceDescriptor *r = NULL;
guint i;
GstCaps *caps = NULL;
g_return_val_if_fail (track != NULL, NULL);
if (track->parent.descriptor == NULL) {
GST_ERROR ("No descriptor found for this track");
return NULL;
}
for (i = 0; i < track->parent.n_descriptor; i++) {
if (!track->parent.descriptor[i])
continue;
if (MXF_IS_METADATA_RGBA_PICTURE_ESSENCE_DESCRIPTOR (track->
parent.descriptor[i])) {
p = (MXFMetadataGenericPictureEssenceDescriptor *) track->
parent.descriptor[i];
r = (MXFMetadataRGBAPictureEssenceDescriptor *) track->
parent.descriptor[i];
break;
} else if (MXF_IS_METADATA_CDCI_PICTURE_ESSENCE_DESCRIPTOR (track->parent.
descriptor[i])) {
p = (MXFMetadataGenericPictureEssenceDescriptor *) track->
parent.descriptor[i];
c = (MXFMetadataCDCIPictureEssenceDescriptor *) track->
parent.descriptor[i];
}
}
if (!p) {
GST_ERROR ("No picture essence descriptor found for this track");
return NULL;
}
*handler = mxf_up_handle_essence_element;
if (r) {
caps = mxf_up_rgba_create_caps (track, r, tags, handler, mapping_data);
} else {
GST_ERROR ("CDCI uncompressed picture essence not supported yet");
return NULL;
}
if (caps) {
mxf_metadata_generic_picture_essence_descriptor_set_caps (p, caps);
}
return caps;
}
static GstCaps *
mxf_vc3_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
{
MXFMetadataFileDescriptor *f = NULL;
MXFMetadataGenericPictureEssenceDescriptor *p = NULL;
guint i;
GstCaps *caps = NULL;
g_return_val_if_fail (track != NULL, NULL);
if (track->parent.descriptor == NULL) {
GST_ERROR ("No descriptor found for this track");
return NULL;
}
for (i = 0; i < track->parent.n_descriptor; i++) {
if (!track->parent.descriptor[i])
continue;
if (MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->
parent.descriptor[i])) {
p = (MXFMetadataGenericPictureEssenceDescriptor *) track->parent.
descriptor[i];
f = track->parent.descriptor[i];
break;
} else if (MXF_IS_METADATA_FILE_DESCRIPTOR (track->parent.descriptor[i]) &&
!MXF_IS_METADATA_MULTIPLE_DESCRIPTOR (track->parent.descriptor[i])) {
f = track->parent.descriptor[i];
}
}
if (!f) {
GST_ERROR ("No descriptor found for this track");
return NULL;
}
*handler = mxf_vc3_handle_essence_element;
caps = gst_caps_new_empty_simple ("video/x-dnxhd");
if (p) {
mxf_metadata_generic_picture_essence_descriptor_set_caps (p, caps);
} else {
GST_WARNING ("Only a generic file descriptor found");
}
if (!*tags)
*tags = gst_tag_list_new_empty ();
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_VIDEO_CODEC,
"VC-3 Video", NULL);
return caps;
}
static GstCaps *
mxf_up_rgba_create_caps (MXFMetadataTimelineTrack * track,
MXFMetadataRGBAPictureEssenceDescriptor * d, GstTagList ** tags,
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
{
GstCaps *caps = NULL;
guint i;
guint32 fourcc;
guint bpp;
if (!d->pixel_layout) {
GST_ERROR ("No pixel layout");
return NULL;
}
for (i = 0; i < G_N_ELEMENTS (_rgba_mapping_table); i++) {
if (d->n_pixel_layout != _rgba_mapping_table[i].n_pixel_layout)
continue;
if (memcmp (d->pixel_layout, &_rgba_mapping_table[i].pixel_layout,
_rgba_mapping_table[i].n_pixel_layout * 2) == 0) {
caps = gst_caps_from_string (_rgba_mapping_table[i].caps);
fourcc = _rgba_mapping_table[i].fourcc;
bpp = _rgba_mapping_table[i].n_pixel_layout;
break;
}
}
if (caps) {
MXFUPMappingData *data = g_new0 (MXFUPMappingData, 1);
mxf_metadata_generic_picture_essence_descriptor_set_caps (&d->parent, caps);
data->width = d->parent.stored_width;
data->height = d->parent.stored_height;
data->fourcc = fourcc;
data->bpp = bpp;
data->image_start_offset =
((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_start_offset;
data->image_end_offset =
((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_end_offset;
*mapping_data = data;
} else {
GST_WARNING ("Unsupported pixel layout");
}
return caps;
}
static GstCaps *
mxf_up_cdci_create_caps (MXFMetadataTimelineTrack * track,
MXFMetadataCDCIPictureEssenceDescriptor * d, GstTagList ** tags,
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
{
GstCaps *caps = NULL;
guint i;
guint32 fourcc;
guint bpp;
for (i = 0; i < G_N_ELEMENTS (_cdci_mapping_table); i++) {
if (_cdci_mapping_table[i].horizontal_subsampling ==
d->horizontal_subsampling
&& _cdci_mapping_table[i].vertical_subsampling ==
d->vertical_subsampling
&& _cdci_mapping_table[i].reversed_byte_order ==
d->reversed_byte_order) {
caps = gst_caps_from_string (_cdci_mapping_table[i].caps);
fourcc = _cdci_mapping_table[i].fourcc;
bpp = _cdci_mapping_table[i].bpp;
break;
}
}
if (caps) {
MXFUPMappingData *data = g_new0 (MXFUPMappingData, 1);
mxf_metadata_generic_picture_essence_descriptor_set_caps (&d->parent, caps);
data->width = d->parent.stored_width;
data->height = d->parent.stored_height;
data->fourcc = fourcc;
data->bpp = bpp;
data->image_start_offset =
((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_start_offset;
data->image_end_offset =
((MXFMetadataGenericPictureEssenceDescriptor *) d)->image_end_offset;
*mapping_data = data;
} else {
GST_WARNING ("Unsupported CDCI format");
}
return caps;
}
static GstCaps *
mxf_dv_dif_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
{
GstCaps *caps = NULL;
guint i;
MXFMetadataGenericPictureEssenceDescriptor *d = NULL;
g_return_val_if_fail (track != NULL, NULL);
if (track->parent.descriptor == NULL) {
GST_ERROR ("No descriptor found for this track");
return NULL;
}
for (i = 0; i < track->parent.n_descriptor; i++) {
if (MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->
parent.descriptor[i])) {
d = MXF_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->
parent.descriptor[i]);
break;
}
}
*handler = mxf_dv_dif_handle_essence_element;
/* SMPTE 383M 8 */
/* TODO: might be video or audio only, use values of the generic sound/picture
* descriptor in the caps in that case
*/
GST_DEBUG ("Found DV-DIF stream");
caps =
gst_caps_new_simple ("video/x-dv", "systemstream", G_TYPE_BOOLEAN, TRUE,
NULL);
if (d)
mxf_metadata_generic_picture_essence_descriptor_set_caps (d, caps);
if (!*tags)
*tags = gst_tag_list_new_empty ();
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_CODEC, "DV-DIF", NULL);
return caps;
}
static GstCaps *
mxf_jpeg2000_create_caps (MXFMetadataTimelineTrack * track, GstTagList ** tags,
MXFEssenceElementHandleFunc * handler, gpointer * mapping_data)
{
MXFMetadataFileDescriptor *f = NULL;
MXFMetadataGenericPictureEssenceDescriptor *p = NULL;
guint i;
GstCaps *caps = NULL;
guint32 fourcc;
g_return_val_if_fail (track != NULL, NULL);
if (track->parent.descriptor == NULL) {
GST_ERROR ("No descriptor found for this track");
return NULL;
}
for (i = 0; i < track->parent.n_descriptor; i++) {
if (!track->parent.descriptor[i])
continue;
if (MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (track->parent.
descriptor[i])) {
p = (MXFMetadataGenericPictureEssenceDescriptor *) track->
parent.descriptor[i];
f = track->parent.descriptor[i];
break;
} else if (MXF_IS_METADATA_FILE_DESCRIPTOR (track->parent.descriptor[i]) &&
!MXF_IS_METADATA_MULTIPLE_DESCRIPTOR (track->parent.descriptor[i])) {
f = track->parent.descriptor[i];
}
}
if (!f) {
GST_ERROR ("No descriptor found for this track");
return NULL;
}
fourcc = GST_MAKE_FOURCC ('s', 'R', 'G', 'B');
if (p && MXF_IS_METADATA_CDCI_PICTURE_ESSENCE_DESCRIPTOR (p)) {
fourcc = GST_MAKE_FOURCC ('s', 'Y', 'U', 'V');
} else if (p && MXF_IS_METADATA_RGBA_PICTURE_ESSENCE_DESCRIPTOR (p)) {
MXFMetadataRGBAPictureEssenceDescriptor *r =
(MXFMetadataRGBAPictureEssenceDescriptor *) p;
gboolean rgb = TRUE;
gboolean xyz = TRUE;
gboolean yuv = TRUE;
guint i;
if (r->pixel_layout) {
for (i = 0; i < r->n_pixel_layout; i++) {
guint8 c = r->pixel_layout[2 * i];
switch (c) {
case 'R':
case 'r':
case 'G':
case 'g':
case 'B':
case 'b':
xyz = yuv = FALSE;
break;
case 'Y':
case 'y':
rgb = FALSE;
break;
case 'U':
case 'u':
case 'V':
case 'v':
xyz = rgb = FALSE;
break;
case 'X':
case 'x':
case 'Z':
case 'z':
rgb = yuv = FALSE;
break;
default:
break;
}
}
if (rgb) {
fourcc = GST_MAKE_FOURCC ('s', 'R', 'G', 'B');
} else if (yuv) {
fourcc = GST_MAKE_FOURCC ('s', 'Y', 'U', 'V');
} else if (xyz) {
GST_ERROR ("JPEG2000 with XYZ colorspace not supported yet");
return NULL;
}
}
}
*handler = mxf_jpeg2000_handle_essence_element;
/* TODO: What about other field values? */
caps =
gst_caps_new_simple ("image/x-jpc", "fields", G_TYPE_INT, 1, "fourcc",
GST_TYPE_FOURCC, fourcc, NULL);
if (p) {
mxf_metadata_generic_picture_essence_descriptor_set_caps (p, caps);
} else {
GST_WARNING ("Only a generic file descriptor found");
}
if (!*tags)
*tags = gst_tag_list_new ();
gst_tag_list_add (*tags, GST_TAG_MERGE_APPEND, GST_TAG_VIDEO_CODEC,
"JPEG 2000", NULL);
return caps;
}
