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authoriive <iive@b3059339-0415-0410-9bf9-f77b7e298cf2>2004-09-12 15:36:43 +0000
committeriive <iive@b3059339-0415-0410-9bf9-f77b7e298cf2>2004-09-12 15:36:43 +0000
commitab9f308df4867fadfd52220465b5213588982d4c (patch)
tree326333e2b125722987b15a7816b5586d8b346891 /DOCS
parentd7f693a20451132a2a2b7d916e4bcf808cab12ae (diff)
downloadmpv-ab9f308df4867fadfd52220465b5213588982d4c.tar.bz2
mpv-ab9f308df4867fadfd52220465b5213588982d4c.tar.xz
2pass encoding support for x264(r46).
patch by Loren Merritt and Jeff Clagg git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13326 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'DOCS')
-rw-r--r--DOCS/man/en/mplayer.126
1 files changed, 11 insertions, 15 deletions
diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1
index 006cc90669..051564e513 100644
--- a/DOCS/man/en/mplayer.1
+++ b/DOCS/man/en/mplayer.1
@@ -6489,9 +6489,8 @@ I frame frequency (default: 60)
.TP
.B frameref=<value>
Number of previous frames used as predictors in a P-frame (default: 1).
-.br
-.I NOTE:
-As of x264 r38 this feature is not implemented yet.
+This may cause tiny changes in bitrate and PSNR.
+Some decoders are unable to deal with large frameref values.
.
.TP
.B idrframe=<value>
@@ -6527,7 +6526,7 @@ Beta parameter of deblocking filter (default: 0).
Affects the maximum allowed gradient within two adjacent blocks.
.
.TP
-.B cabac
+.B cabac\ \ \
Use CABAC (Context-Adaptive Binary Arithmetic Coding).
.
.TP
@@ -6558,18 +6557,14 @@ As an example, the bitrate difference between QP=20 and QP=40
is about a factor of 10.
Useful quantizers in H.264 tend to be very large compared to MPEG[124].
.br
-.I NOTE:
-This option takes effect even if you specify a CBR encode.
-In such a case, the first encoded frame will use the quantization factor you
-specified, but in later frames, the ratecontrol decides what quants to use.
.
.TP
.B qp_min=<2-51> (CBR only)
-Minimum quantizer, 20-40 seems to be a useful range (default: 2).
+Minimum quantizer, 15-35 seems to be a useful range (default: 10).
.
.TP
.B qp_max=<2-51> (CBR only)
-Maximum quantizer
+maximum quantizer (default: 51)
.
.TP
.B qp_step=<value>
@@ -6587,7 +6582,7 @@ Set the initial ratecontrol buffer (default: 1/4 of rc_buffer_size)
.
.TP
.B rc_sens=<0-100>
-ratecontrol sensitivity (default: 100)
+ratecontrol sensitivity (default: 4)
.
.TP
.B ip_factor=<value>
@@ -6610,7 +6605,7 @@ bitrate more constant, while a higher value makes the quantization parameter
more constant.
.
.TP
-.B qblur=<0-1>
+.B qblur=<0-99>
Temporal blur of the quantization parameter (default: 0.5).
Lower values allow the quantizer value to jump around more,
higher values force it to vary more smoothly.
@@ -6626,17 +6621,18 @@ Adjust the amount of logging info printed to the screen.
.RSs
-1: none
.br
- 0: errors (for debugging x264)
+ 0: Print errors only.
.br
1: warnings
.br
- 2: PSNR and other analysis stats when the encode finishes (default)
+ 2: PSNR, encoding times, and other analysis stats when the encode finishes
+(default)
.br
3: PSNR, QP, frametype, size, and other stats for every frame
.REss
.
.TP
-.B psnr
+.B psnr\ \ \
Print signal-to-noise ratio statistics.
.
.