diff options
| -rw-r--r-- | DOCS/man/en/mplayer.1 | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index 8b481eae50..4c829f65c5 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -6735,13 +6735,15 @@ This is required if you want a CBR (constant bitrate) encode. . .TP .B iframe=<value> -I frame frequency (default: 60) -Raising their frequency usually improves quality. +Sets maximum interval between I frames. +Larger values save bits, thus improve quality, at the cost of seeking +precision (default: 60). . .TP -.B frameref=<value> -Number of previous frames used as predictors in a P-frame (default: 1). -This may cause tiny changes in bitrate and PSNR. +.B frameref=<1\-15> +Number of previous frames used as predictors in a P frame (default: 1). +This is effective in Anime, but seems to make little difference in +live-action source material. Some decoders are unable to deal with large frameref values. . .TP @@ -6840,7 +6842,7 @@ specified) Set the initial ratecontrol buffer (default: 1/4 of rc_buffer_size) . .TP -.B rc_sens=<0\-100> +.B rc_sens=<0\-100> (CBR only) ratecontrol sensitivity (default: 4) . .TP @@ -6855,7 +6857,7 @@ quantizer factor between P and B frames (default: 2.0) .B pass=<1|2> Enable 2-pass mode. The first pass saves statistics. -It is recommanded to always encode in 2-pass mode as it leads to a better bit +It is recommended to always encode in 2-pass mode as it leads to a better bit distribution and improves overall quality. . .TP |