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 gboolean mxf_is_vc3_essence_track (const MXFMetadataTimelineTrack * track) { guint i; g_return_val_if_fail (track != NULL, FALSE); if (track->parent.descriptor == NULL) return FALSE; for (i = 0; i < track->parent.n_descriptor; i++) { MXFMetadataFileDescriptor *d = track->parent.descriptor[i]; MXFUL *key; if (!d) continue; key = &d->essence_container; /* SMPTE S2019-4 7 */ if (mxf_is_generic_container_essence_container_label (key) && key->u[12] == 0x02 && key->u[13] == 0x11 && (key->u[14] == 0x01 || key->u[14] == 0x02)) { return TRUE; } else if (mxf_is_avid_essence_container_label (key)) { MXFMetadataGenericPictureEssenceDescriptor *p; if (!MXF_IS_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (d)) return FALSE; p = MXF_METADATA_GENERIC_PICTURE_ESSENCE_DESCRIPTOR (d); key = &p->picture_essence_coding; if (mxf_ul_is_subclass (&picture_essence_coding_vc3_avid, key)) return TRUE; } } return FALSE; }