philipel bf2b620cc8 Convert VP8 descriptor to generic descriptor.
Also adds a running picture id for the old generic format when
kVideoCodecGeneric is used (behind "WebRTC-GenericPictureId" field trial).

Bug: webrtc:9361
Change-Id: I6f232a2663bb60257c97ed3473eb07044d325b90
Reviewed-on: https://webrtc-review.googlesource.com/94842
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24449}
2018-08-27 13:03:20 +00:00
..
2018-07-25 14:59:26 +00:00
2018-06-19 14:00:39 +00:00
2018-08-15 09:41:20 +00:00
2018-06-19 14:00:39 +00:00