gst/mxf/: Implement parsing of the generic data essence descriptor.

Original commit message from CVS:
* gst/mxf/mxfdemux.c: (gst_mxf_demux_reset_metadata),
(gst_mxf_demux_handle_metadata_generic_data_essence_descriptor),
(gst_mxf_demux_handle_header_metadata_resolve_references),
(gst_mxf_demux_handle_metadata):
* gst/mxf/mxfdemux.h:
* gst/mxf/mxfparse.c:
(mxf_metadata_generic_data_essence_descriptor_handle_tag),
(mxf_metadata_generic_data_essence_descriptor_reset):
* gst/mxf/mxfparse.h:
* gst/mxf/mxftypes.h:
Implement parsing of the generic data essence descriptor.

1 files changed, 46 insertions, 0 deletions

diff --git a/gst/mxf/mxfparse.c b/gst/mxf/mxfparse.c
index 53726b6b..212c6942 100644
--- a/gst/mxf/mxfparse.c
+++ b/gst/mxf/mxfparse.c
@@ -2838,6 +2838,52 @@ void mxf_metadata_rgba_picture_essence_descriptor_reset
 }
 
 gboolean
+    mxf_metadata_generic_data_essence_descriptor_handle_tag
+    (MXFMetadataGenericDescriptor * d, const MXFPrimerPack * primer,
+    guint16 tag, const guint8 * tag_data, guint16 tag_size)
+{
+  MXFMetadataGenericDataEssenceDescriptor *descriptor =
+      (MXFMetadataGenericDataEssenceDescriptor *) d;
+  gboolean ret = FALSE;
+  gchar str[48];
+
+  switch (tag) {
+    case 0x3e01:
+      if (tag_size != 16)
+        goto error;
+      memcpy (&descriptor->data_essence_compression, tag_data, 16);
+      GST_DEBUG ("  data essence compression = %s",
+          mxf_ul_to_string (&descriptor->data_essence_compression, str));
+      ret = TRUE;
+      break;
+    default:
+      ret =
+          mxf_metadata_file_descriptor_handle_tag (d, primer, tag, tag_data,
+          tag_size);
+      break;
+  }
+
+  return ret;
+
+error:
+  GST_ERROR ("Invalid generic data essence descriptor tag 0x%04x of size %u",
+      tag, tag_size);
+
+  return TRUE;
+}
+
+void mxf_metadata_generic_data_essence_descriptor_reset
+    (MXFMetadataGenericDataEssenceDescriptor * descriptor)
+{
+  g_return_if_fail (descriptor != NULL);
+
+  mxf_metadata_file_descriptor_reset ((MXFMetadataFileDescriptor *) descriptor);
+
+  MXF_METADATA_DESCRIPTOR_CLEAR (descriptor,
+      MXFMetadataGenericDataEssenceDescriptor, MXFMetadataFileDescriptor);
+}
+
+gboolean
 mxf_metadata_multiple_descriptor_handle_tag (MXFMetadataGenericDescriptor * d,
     const MXFPrimerPack * primer, guint16 tag, const guint8 * tag_data,
     guint16 tag_size)