[Bug 691712] [API] codecparsers: add GstMetas to pass parsing results downstream

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=691712
  GStreamer | gst-plugins-bad | git

--- Comment #24 from sreerenj <bsreerenj at gmail.com> 2013-07-19 09:04:51 UTC ---
Using SliceInfo instead of (SliceInfo *) will cause an extra memcpy for each
g_array_append() . right?

So which one is better in this context

--more dynamic allocation

  --GPtrArray to hold the pointers to GstMpegVideoSliceMetaInfo with in
mpvparse
  --Both Mpvparse and MpegMeta are only doing ref()/unref() for the array


-- more memcpy

 --GArray to hold the GstMpegVideoSliceMetaInfo itself
 --g_array_append() will cause a memcpy each time we append the SliceInfo
 --MpegMeta will only do a ref()/unref() for the array.


@tim: Do you meant to allocate the memory only once for a single frame? That is
not possible since we don't know about the number of slices in a frame in
advance.

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