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memory: fix is_span

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Subtract the offset of the parent from is_span.
This commit is contained in:
Wim Taymans 2011-06-10 16:19:46 +02:00
parent 17ff81fc7d
commit 7c475cc60f
1 changed files with 8 additions and 2 deletions
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10
gst/gstmemory.c
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@ -262,8 +262,14 @@ static gboolean
_default_mem_is_span (GstMemoryDefault * mem1, GstMemoryDefault * mem2, _default_mem_is_span (GstMemoryDefault * mem1, GstMemoryDefault * mem2,
gsize * offset) gsize * offset)
{ {
if (offset)
*offset = mem1->offset; if (offset) {
GstMemoryDefault *parent;
parent = (GstMemoryDefault *) mem1->mem.parent;
*offset = mem1->offset - parent->offset;
}
/* and memory is contiguous */ /* and memory is contiguous */
return mem1->data + mem1->offset + mem1->size == mem2->data + mem2->offset; return mem1->data + mem1->offset + mem1->size == mem2->data + mem2->offset;