tree c9db6149e53c58ba1986677db291fe69042ceb74
parent 86fa66e3a0743e1827347c4018b91414a1868d4f
author Jonas Larsson <ljonas@google.com> 1551227843 -0800
committer Jonas Larsson <ljonas@google.com> 1551484723 -0800

Never re-allocate buffer pool if caps haven't changed.

When using vpudec inside an autoplugged pipeline (e.g. decodebin)
the negotiation is triggered multiple times and identical decoder
output buffers are allocated and freed multiple times.

There are cases where we can't fit 2x decoder buffers in memory at
the same time and decoding fails. This is especially true when the
pipeline also contains OpenGL elements that use the same CMA memory.

Change-Id: I31fe4d34a318ad88b9736db8d5fcf0c50a9bc917