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basetransform: Assume size is the same if no transform_size/get_unit_size

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Subclasses that don't implemen transform_size should be assumed to produce output
buffers of the same size.

https://bugzilla.gnome.org/show_bug.cgi?id=621334
This commit is contained in:
Olivier Crête 2010-06-11 18:46:30 -04:00 committed by Wim Taymans
parent 603c04f4fa
commit 828f2a3389
1 changed files with 5 additions and 0 deletions
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5
libs/gst/base/gstbasetransform.c
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@ -544,6 +544,11 @@ gst_base_transform_transform_size (GstBaseTransform * trans,
/* if there is a custom transform function, use this */ /* if there is a custom transform function, use this */
ret = klass->transform_size (trans, direction, caps, size, othercaps, ret = klass->transform_size (trans, direction, caps, size, othercaps,
othersize); othersize);
} else if (klass->get_unit_size == NULL) {
/* if there is no transform_size and no unit_size, it means the
* element does not modify the size of a buffer */
*othersize = size;
ret = TRUE;
} else { } else {
/* there is no transform_size function, we have to use the unit_size /* there is no transform_size function, we have to use the unit_size
* functions. This method assumes there is a fixed unit_size associated with * functions. This method assumes there is a fixed unit_size associated with