[x264-devel] --pb-ratio not used despite it was added

[BugMaster]

On Tue, 02 Oct 2018 09:33:26 +0000, pcroland wrote:
> Hi!

> I used the following settings in cmd:
> --level 4.1 --preset veryslow --no-fast-pskip --keyint 240
> --vbv-maxrate 62500 --vbv-bufsize 78125 --merange 32
> --bframes 10 --deblock -3,-3 --qcomp 0.65 --aq-mode 3
> --aq-strength 0.8 --psy-rd 1.1 --ipratio 1.3 --pbratio 1.2 --crf 18

> ip_ratio and pb_ratio default values are 1.4 and 1.3, so I used
> non-default values, but MediaInfo shows that only ipratio was used:
> Encoding settings                        : cabac=1 / ref=16 /
> deblock=1:-3:-3 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 /
> psy_rd=1.10:0.00 / mixed_ref=1 / me_range=32 / chroma_me=1 /
> trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 /
> chroma_qp_offset=-2 / threads=12 / lookahead_threads=3 /
> sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 /
> bluray_compat=0 / constrained_intra=0 / bframes=10 / b_pyramid=2 /
> b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2
> / keyint=240 / keyint_min=23 / scenecut=40 / intra_refresh=0 /
> rc_lookahead=60 / rc=crf / mbtree=1 / crf=18.0 / qcomp=0.65 /
> qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=62500 /
> vbv_bufsize=78125 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.30 / aq=3:0.80

> I thought that maybe it's MediaInfo's fault but I encoded the file
> with and without pbratio being set to 1.2 and the encoded files had the same md5sum.

> What's causing the problem?
>  

Hi.

--pbratio is ignored when used with MBTree because it is effectively
results in dynamic --pbratio.