d1a10a0f77
This implementation interprets payloads of size 1 as codec-internal SID frames, marking the start of a CNG period. Changes were made to other parts of the test payload chain, since it had to make use of the virtual payload size in the case of header-only RTP files. BUG=webrtc:2692 Review-Url: https://codereview.webrtc.org/2275903002 Cr-Commit-Position: refs/heads/master@{#13901}