mirror of https://github.com/mpv-player/mpv
Better x264 descriptions/fixes based on Loren Merritt's patch (Thu, 23 Sep 2004)
Also a wording fixed picked up by Diego git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13457 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -6735,13 +6735,15 @@ This is required if you want a CBR (constant bitrate) encode.
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.
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.TP
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.B iframe=<value>
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I frame frequency (default: 60)
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Raising their frequency usually improves quality.
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Sets maximum interval between I frames.
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Larger values save bits, thus improve quality, at the cost of seeking
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precision (default: 60).
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.
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.TP
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.B frameref=<value>
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Number of previous frames used as predictors in a P-frame (default: 1).
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This may cause tiny changes in bitrate and PSNR.
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.B frameref=<1\-15>
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Number of previous frames used as predictors in a P frame (default: 1).
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This is effective in Anime, but seems to make little difference in
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live-action source material.
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Some decoders are unable to deal with large frameref values.
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.TP
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@ -6840,7 +6842,7 @@ specified)
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Set the initial ratecontrol buffer (default: 1/4 of rc_buffer_size)
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.TP
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.B rc_sens=<0\-100>
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.B rc_sens=<0\-100> (CBR only)
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ratecontrol sensitivity (default: 4)
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.TP
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@ -6855,7 +6857,7 @@ quantizer factor between P and B frames (default: 2.0)
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.B pass=<1|2>
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Enable 2-pass mode.
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The first pass saves statistics.
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It is recommanded to always encode in 2-pass mode as it leads to a better bit
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It is recommended to always encode in 2-pass mode as it leads to a better bit
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distribution and improves overall quality.
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.
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.TP
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