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_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; }