tree a672bb45f54298e06a37f09bebfbecf94e6f5231
parent 77b13f4212632c00f78e57229bc00bb9498a467e
author David Turner <david.turner@argondesign.com> 1549471093 +0000
committer David Turner <david.turner@argondesign.com> 1550003810 +0000

Move pass2 strategy & GOP structure to new files

firstpass.c includes a lot of complexity from the pass 2 encode.  This
commit separates out pass2_strategy.c which covers rate assignment to
the GF_GROUP and gop_structure.c which is specific to setting up the
structure (flat or pyramid) of the new GF_GROUP (with no rate
decisions).

After this commit firstpass.c only contains things specific to pass 1
encoding.

Change-Id: Ida4737fc12fa20a2f0e88b43314f2f0cb3da8388