use arg_parse_enum_or_int like vpxenc. this also fixes a warning as
arg_parse_enum is not currently declared in args.h.
Change-Id: If9ce258d6adb6286eb86f529083929d5fe2b3a56
vpx_svc_parameters_t contains id, resolution and min/max qp for each spatial layer.
In this change we will use extra config to send min/max qp and scaling factors, then calculate layer resolution inside encoder.
Change-Id: Ib673303266605fe803c3b067284aae5f7a25514a
1. This is to align with the ffmpeg implementation
2. Remove APIs for setting quantizers and scale-factors
Change-Id: I6e238d71db790a9fb3254baaeb61e2a5aac58f48
1. svc_encodeframe.c will not handle frame or stats packets anymore.
The app will process them.
2. Remove APIs that related to these packets.
Change-Id: Id0d7f8b458dc09c6f77064c0878fd4e572db001b
It's built based on current spatial svc code.
We only support one spatial two temporal layers at this time.
Change-Id: I1fdc8584354b910331e626bfae60473b3b701ba1
