gst/mxf/mxfparse.c: Fix setting of the height/width and PAR of video streams.

Original commit message from CVS:
* gst/mxf/mxfparse.c:
(mxf_metadata_generic_picture_essence_descriptor_set_caps):
Fix setting of the height/width and PAR of video streams.

1 files changed, 13 insertions, 9 deletions

diff --git a/gst/mxf/mxfparse.c b/gst/mxf/mxfparse.c
index b1a87e04..53726b6b 100644
--- a/gst/mxf/mxfparse.c
+++ b/gst/mxf/mxfparse.c
@@ -2610,8 +2610,8 @@ void mxf_metadata_generic_picture_essence_descriptor_reset
 void mxf_metadata_generic_picture_essence_descriptor_set_caps
     (MXFMetadataGenericPictureEssenceDescriptor * descriptor, GstCaps * caps)
 {
-  /*guint par_n, par_d;
-     guint width, height; */
+  guint par_n, par_d;
+  guint width, height;
   MXFMetadataFileDescriptor *f = (MXFMetadataFileDescriptor *) descriptor;
 
   g_return_if_fail (descriptor != NULL);
@@ -2620,13 +2620,18 @@ void mxf_metadata_generic_picture_essence_descriptor_set_caps
   gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION, f->sample_rate.n,
       f->sample_rate.d, NULL);
 
-  return;
-
-/* FIXME: This sets wrong values for most (all?) files */
-#if 0
   width = descriptor->stored_width;
   height = descriptor->stored_height;
 
+  /* If the video is stored as separate fields the
+   * height is only the height of one field, i.e.
+   * half the height of the frame.
+   *
+   * See SMPTE 377M E2.2 and E1.2
+   */
+  if (descriptor->frame_layout == 1 || descriptor->frame_layout == 2)
+    height *= 2;
+
   if (width == 0 || height == 0)
     return;
 
@@ -2636,12 +2641,11 @@ void mxf_metadata_generic_picture_essence_descriptor_set_caps
   if (descriptor->aspect_ratio.n == 0 || descriptor->aspect_ratio.d == 0)
     return;
 
-  par_n = height * descriptor->aspect_ratio.d;
-  par_d = width * descriptor->aspect_ratio.n;
+  par_n = height * descriptor->aspect_ratio.n;
+  par_d = width * descriptor->aspect_ratio.d;
 
   gst_caps_set_simple (caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
       par_n, par_d, NULL);
-#endif
 }
 
 gboolean