If the specification for the speech encoder hasn't changed, we should
reuse it instead of recreating it. Otherwise, we lose its state. (This
problem was originally discovered because AudioEncoderOpus instances
would forget that they were supposed to be using DTX.)
BUG=webrtc:6020, chromium:622647
Review-Url: https://codereview.webrtc.org/2089183002
Cr-Commit-Position: refs/heads/master@{#13273}
We don't need it anymore now that we can use std::vector::data().
Review URL: https://codereview.webrtc.org/1470843003
Cr-Commit-Position: refs/heads/master@{#10755}
The main intended use case is as a function argument, replacing the
harder-to-read and harder-to-use separate pointer and size arguments.
It's easier to read because it's just one argument instead of two, and
with clearly defined semantics; it's easier to use because it has
iterators, and will automatically figure out the size of arrays.
BUG=webrtc:5028
R=andrew@webrtc.org, solenberg@webrtc.org
Review URL: https://codereview.webrtc.org/1408403002 .
Cr-Commit-Position: refs/heads/master@{#10415}
