<div dir="ltr"><div><div>I am trying to improve the PSNR quantitative video quality of x264 by reducing or eliminating early terminations but I actually get worse PSNR results:<br><br></div>default/--subme 7:<br>31.40 38.60 41.43<br>
<br>--subme 11 <br>31.34 38.54 41.36<br><br>--subme 9<br>31.34 38.54 41.36<br><br></div>Is there anything else that I need to do to disable early terminations or why would 9 and 11 be worse than 7? I am already using --no-fast-pskip (which makes picture not have subtle random blocks).<br>
<br>This is my command line:<br><br>x264 <br>--input-res 1920x1080 <br>--fps 60000/1001 <br>--bitrate 2700 <br>--vbv-maxrate 2700 <br>--vbv-bufsize 8100 <br>--nal-hrd cbr <br>--keyint 256 <br>--output X_subme9.h264 <br>--no-fast-pskip <br>
--subme 9 <br>--dump-yuv X_subme9.yuv <br>BQTerrace_1920x1080_60_H264.yuv<br><br>version is:<br>x264 0.138.x<br>(libswscale 2.3.100)<br>(libavformat 55.12.100)<br>built on Sep 17 2013, gcc: 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)<br>
configuration: --bit-depth=8 --chroma-format=all<br>x264 license: GPL version 2 or later<br>libswscale/libavformat license: GPL version 2 or later<br><br>Thanks for any leads.<br><br>RAUL<br></div>