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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hallo all,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>we currently make some experiments, where we need to
maintain a regular group of picture (GoP) pattern, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>like P, b, b, P, b, b, P….<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Therefore we have put “–b-adapt 0” into
the commandline. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>That has worked perfectly so far. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Now it seems with a newer version of x.264 (ver. 1867)
the GoP-pattern is very variable as if the –b-adapt command was ignored. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>This is the commandline we used: <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>x264.exe --preset medium
--profile high --level 4.0 --aud -B <bitrate> --fp 25 -I 25 --open-gop
normal --bframes 2 --b-adapt 0 --b-pyramid none --slices 1 --qpmin 2 --me umh
--merange 64 --verbose --input-res 1920x1080 -o <out.264></span></font><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p style='margin:0cm;margin-bottom:.0001pt'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>What have we missed??<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>I would be thankfull for any help!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>Kind Regards, Peter List<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>-------------------------------<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>PS: here is the beginning of a log-file: <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>yuv [info]: 1920x1080p 0:0 @ 25/1 fps (cfr)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: using mv_range_thread = 184<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [info]: using cpu capabilities: MMX2 SSE2Fast
SSSE3 FastShuffle SSE4.1 Cache64<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [info]: profile High, level 4.0<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 0 QP=13.50 NAL=3 Slice:I
Poc:0 I:8160 P:0 SKIP:0 size=389281 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 1 QP=16.73 NAL=2 Slice:P
Poc:6 I:5751 P:394 SKIP:2015 size=393570 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 2 QP=18.17 NAL=0 Slice:B
Poc:2 I:4771 P:1033 SKIP:2051 size=351456 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 3 QP=17.73 NAL=0 Slice:B
Poc:4 I:4805 P:1005 SKIP:2050 size=353984 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 4 QP=25.51 NAL=2 Slice:P
Poc:12 I:1467 P:4651 SKIP:2042 size=88263 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 5 QP=18.82 NAL=0 Slice:B
Poc:8 I:3464 P:2121 SKIP:2063 size=223773 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 6 QP=23.56 NAL=0 Slice:B
Poc:10 I:1747 P:3546 SKIP:2248 size=121616 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 7 QP=34.10 NAL=2 Slice:P
Poc:18 I:1098 P:4088 SKIP:2974 size=25686 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 8 QP=28.33 NAL=0 Slice:B
Poc:14 I:297 P:4501 SKIP:3150 size=31334 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 9 QP=32.03 NAL=0 Slice:B
Poc:16 I:251 P:4405 SKIP:3345 size=23087 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 10 QP=38.18 NAL=2 Slice:P Poc:22
I:1089 P:3473 SKIP:3598 size=15753 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 11 QP=36.74 NAL=0 Slice:B
Poc:20 I:237 P:3558 SKIP:4301 size=12203 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 12 QP=37.25 NAL=2 Slice:P
Poc:24 I:1166 P:3264 SKIP:3730 size=15819 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 13 QP=33.54 NAL=2 Slice:P
Poc:26 I:1101 P:3340 SKIP:3719 size=15908 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 14 QP=33.11 NAL=2 Slice:P
Poc:28 I:1110 P:3488 SKIP:3562 size=16425 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 15 QP=32.94 NAL=2 Slice:P
Poc:30 I:1140 P:3317 SKIP:3703 size=16513 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 16 QP=36.19 NAL=2 Slice:P
Poc:32 I:1262 P:3195 SKIP:3703 size=16899 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 17 QP=35.70 NAL=2 Slice:P
Poc:34 I:1400 P:3298 SKIP:3462 size=17251 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'>x264 [debug]: frame= 18 QP=32.14 NAL=2 Slice:P
Poc:36 I:1245 P:3462 SKIP:3453 size=17958 bytes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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