When the material package track and source package track
edit rate are different the source package track edit
rate applies to the stored essence and the material track
edit rate only applies to the values in the track's sequence
and components.
Some files contain multiple tracks with the same track number but different
track id inside the same source package. This is invalid and we simply ignore
the second and following of such traacks now instead of overwriting the
information of the first one.
Generate an index table for essence streams during playback
and make sure that only the correct essence elements are
used for played tracks.
Make it possible to have one essence stream used in multiple
playback tracks.
Fix some minor bugs.
Add an abstraction to represent essence tracks and
use this everywhere. This will later be used to keep
track of positions and to generate/handle seek tables.
Some random cleanup and renaming.
Store all partitions & primer packs in memory for faster access.
This is later needed for fast seeking.
Pre-fill the list of partitions with the content of the random
index pack.
Don't parse metadata of an partition twice.
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/mxfdemux.c: (gst_mxf_demux_reset_metadata),
(gst_mxf_demux_handle_primer_pack),
(gst_mxf_demux_handle_metadata_preface),
(gst_mxf_demux_handle_header_metadata_resolve_references),
(gst_mxf_demux_choose_package),
(gst_mxf_demux_handle_header_metadata_update_streams),
(gst_mxf_demux_parse_footer_metadata),
(gst_mxf_demux_handle_klv_packet):
* gst/mxf/mxfdemux.h:
* gst/mxf/mxftypes.h:
Remove the concept of "final" metadata, broken files have updated
metadata in following partitions even if the current partition
is closed and complete.
If there's a second primer pack inside a partition ignore the second
one instead of throwing an error.
Store the type of a track (audio, video, timestamp, ...) inside the
track struct.
Post no-more-pads only once for a stream and not a second time
when switching the currently playing package.
When updating all streams make sure that we could select and find
a package instead of dereferencing NULL.
Allow descriptive metadata inside metadata parts of a file when
pulling the footer metadata too.
Only switch the currently playing package if a new one was chosen
and the metadata is in a resolved state. If the latter isn't true
postpone the switch until the metadata is resolved.
Pull the footer metadata directly after parsing the header partition
pack if it's not closed or not complete instead of waiting until
the next KLV packet.
Original commit message from CVS:
* gst/mxf/mxfdemux.c: (gst_mxf_demux_remove_pads),
(gst_mxf_demux_reset), (gst_mxf_demux_find_package),
(gst_mxf_demux_choose_package),
(gst_mxf_demux_handle_header_metadata_update_streams),
(gst_mxf_demux_handle_klv_packet), (gst_mxf_demux_set_property),
(gst_mxf_demux_get_property), (gst_mxf_demux_finalize),
(gst_mxf_demux_class_init):
* gst/mxf/mxfdemux.h:
* gst/mxf/mxfparse.c: (mxf_umid_from_string):
* gst/mxf/mxfparse.h:
Add property to select the top-level source package or material
package that should be used for playback.
Original commit message from CVS:
* gst/mxf/mxfdemux.c: (gst_mxf_demux_reset),
(gst_mxf_demux_handle_index_table_segment):
* gst/mxf/mxfdemux.h:
* gst/mxf/mxfparse.c: (mxf_index_table_segment_parse),
(mxf_index_table_segment_reset):
* gst/mxf/mxfparse.h:
* gst/mxf/mxftypes.h:
Implement parsing of index table segments, which will later be
used for seeking.
Original commit message from CVS:
* gst/mxf/mxfdemux.c: (gst_mxf_demux_reset),
(gst_mxf_demux_handle_random_index_pack),
(gst_mxf_demux_pull_random_index_pack), (gst_mxf_demux_loop):
* gst/mxf/mxfdemux.h:
* gst/mxf/mxfparse.c: (mxf_random_index_pack_parse):
* gst/mxf/mxfparse.h:
* gst/mxf/mxftypes.h:
Implement parsing of the random index pack, which provides a seek
table (including body sid) to the start of partition packs.
Later this will be used for reading all index table segments of
the complete file efficiently.
Original commit message from CVS:
* gst/mxf/mxfdemux.c: (gst_mxf_demux_reset),
(gst_mxf_demux_handle_klv_packet):
* gst/mxf/mxfdemux.h:
Only try to pull the footer metadata once and not on every KLV packet
if it failed before.
