This will later be used to keep the structural metadata when
remuxing an MXF file and can also be used in Pitivi for example
to know the file structure and to select what should be used
and played.
For the tracks we still resolve the descriptors but the
source package only contains the descriptor it really references
instead of all subdescriptors of multiple descriptors.
This makes it easier later to serialize the structural metadata
again.
Store the MXF metadata in a hash table, keyed by the
instance UID. This simplifies resolval of the metadata
and makes looping over all metadata sets unnecessary
in most cases.
Additionally parse metadata always. If we already have
a metadata set with the same UID replace it only if
the new metadata set is from a later offset. This
fixes metadata parsing of files where following partitions
don't have a complete copy of the previous metadata.
Original commit message from CVS:
* gst/mxf/Makefile.am:
* gst/mxf/mxfdemux.c:
* gst/mxf/mxfmetadata.c: (mxf_metadata_handle_tag),
(mxf_metadata_preface_handle_tag),
(mxf_metadata_identification_handle_tag),
(mxf_metadata_content_storage_handle_tag),
(mxf_metadata_essence_container_data_handle_tag),
(mxf_metadata_generic_package_handle_tag),
(mxf_metadata_track_handle_tag),
(mxf_metadata_sequence_handle_tag),
(mxf_metadata_structural_component_handle_tag),
(mxf_metadata_generic_descriptor_handle_tag),
(mxf_metadata_locator_handle_tag),
(mxf_metadata_locator_class_init):
* gst/mxf/mxfmetadata.h:
"Generation UID" and "This Generation UID" are different so handle
them different. Also both are not part of every metadata type.
Original commit message from CVS:
* gst/mxf/mxfmetadata.c: (mxf_metadata_base_resolve):
* gst/mxf/mxfmetadata.h:
If resolving a metadata object failed the first time return
FALSE for a second mxf_metadata_base_resolve() call instead
of TRUE.
Original commit message from CVS:
* gst/mxf/mxfaes-bwf.c: (mxf_bwf_create_caps),
(mxf_aes3_create_caps):
* gst/mxf/mxfalaw.c: (mxf_alaw_create_caps):
* gst/mxf/mxfd10.c: (mxf_d10_create_caps):
* gst/mxf/mxfdemux.c:
* gst/mxf/mxfmetadata.c: (mxf_metadata_source_package_resolve),
(mxf_metadata_generic_picture_essence_descriptor_set_caps),
(mxf_metadata_generic_sound_essence_descriptor_set_caps):
* gst/mxf/mxfmetadata.h:
* gst/mxf/mxfmpeg.c: (mxf_mpeg_es_create_caps):
Add mxf_metadata_generic_sound_essence_descriptor_set_caps() to
set rate and channels and use this for all sound essence.
Give some debug output when setting picture essence caps with
invalid descriptor values.
Fix height calculation from the frame layout a bit more and
add a TODO to check if it's really correct now or if it needs
more fixing (especially, does the framerate need adjustments?).
Original commit message from CVS:
* gst/mxf/mxfdemux.c:
(gst_mxf_demux_handle_header_metadata_resolve_references):
* gst/mxf/mxfmetadata.c: (mxf_metadata_base_resolve_default),
(mxf_metadata_base_class_init), (mxf_metadata_base_parse),
(mxf_metadata_base_resolve), (mxf_metadata_new),
(mxf_metadata_preface_resolve),
(mxf_metadata_content_storage_resolve),
(mxf_metadata_essence_container_data_resolve),
(mxf_metadata_generic_package_resolve),
(mxf_metadata_source_package_resolve),
(mxf_metadata_track_resolve), (mxf_metadata_sequence_resolve),
(mxf_metadata_dm_segment_resolve),
(mxf_metadata_generic_descriptor_resolve),
(mxf_metadata_multiple_descriptor_resolve):
* gst/mxf/mxfmetadata.h:
Rename MXFMetadataBase methods to reflect that they belong to
MXFMetadataBase and not MXFMetadata.
