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buffer: don't over-allocate internal GstMeta items

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We would allocate space for two GstMeta structs even though
there is only one in the end (the one in GstMetaItem and in
GstFooMeta overlap).
This commit is contained in:
Tim-Philipp Müller 2018-04-25 18:28:00 +01:00
parent b00b1d5361
commit 0691278377
1 changed files with 4 additions and 1 deletions
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5
gst/gstbuffer.c
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@ -140,7 +140,10 @@ struct _GstMetaItem
GstMetaItem *next;
GstMeta meta;
};
#define ITEM_SIZE(info) ((info)->size + sizeof (GstMetaItem))
/* info->size will be sizeof(FooMeta) which contains a GstMeta at the beginning
* too, and then there is again a GstMeta in GstMetaItem, so subtract one. */
#define ITEM_SIZE(info) ((info)->size + sizeof (GstMetaItem) - sizeof (GstMeta))
#define GST_BUFFER_MEM_MAX 16