provide some resilience for transient errors Change-Id: I8db3d4eb5ef3cccc235a8c4c0052199c0ce23a27
This runs multiple encodes and decodes of vp8 and vp9 in parallel, with so many threads that problems with synchronization can show up. Change-Id: I2b297e7f43d1e741323c7ad9f50a3931ae609f16