[FFmpeg-user] h264 pic_init_qp_minus26 out of range

[Phillipe Laterrade]

Hello,

 

I'm experiencing a problem when transcoding to h264 :

The pic_init_qp_minus26 parameter is out of range (-28,-30,-31..) on some
files but not on the whole transcoded files.

Here are the h264 settings :

 

Writing library                          : x264 core 155 r2901 7d0ff22

Encoding settings                        : cabac=1 / ref=1 / deblock=1:0:0 /
analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 /
mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 /
deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=4 /
lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 /
bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=0 / keyint=1 /
keyint_min=1 / scenecut=40 / intra_refresh=0 / rc_lookahead=16 / rc=2pass /
mbtree=0 / bitrate=100000 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 /
qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=200000 /
vbv_bufsize=200000 / nal_hrd=vbr / filler=0 / ip_ratio=1.40 / aq=1:1.00

 

Does anyone have an idea how to fix that ?

 

Thank's for your help.

 

Cordialement.

 

philippe-l

 

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