[gstreamer-bugs] [Bug 588483] New: [flacenc] write padding metadata block

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: 0.10.x
           Summary: [flacenc] write padding metadata block
           Product: GStreamer
           Version: 0.10.x
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: tedmlin at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unversioned Enhancement
   GNOME milestone: Unspecified


It would be useful to (optionally) support adding a padding metadata block. By
default, 'flac' will add some padding, so future metadata additions/changes
won't require file rewrites.


The changes should be pretty minimal:

* add a gstreamer property to handle padding size.

* gst_flac_enc_set_metadata():
  Increase the block array size.
  Allocate another metadata block of type 'FLAC__METADATA_TYPE_PADDING' (as the
last metadata block).
  Set 'meta'->length.

* gst_flac_enc_change_state():
  Delete another metadata block.


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