Merge commit '8eac1637b0f8ec7a2417eb53ebe56bb64c3b2b23' into eclair-mr2-plus-aosp
* commit '8eac1637b0f8ec7a2417eb53ebe56bb64c3b2b23':
Propagate duration from input to output only if available, support multiple full frames of audio per input buffer in AMR/AAC decoders.