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new x264 options: b8x8mv, direct_pred

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changed explanation: 4x4mv
changed defaults: subq, pb_factor


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@14260 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
lorenm 2004-12-28 01:53:17 +00:00
parent afb5908fa7
commit 37644a0cee
1 changed files with 41 additions and 9 deletions
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DOCS/man/en/mplayer.1
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@ -7193,7 +7193,7 @@ quantizer factor between I- and P-frames (default: 1.4)
.
.TP
.B pb_factor=<value>
quantizer factor between P- and B-frames (default: 1.4)
quantizer factor between P- and B-frames (default: 1.3)
.
.TP
.B pass=<1\-3>
@ -7262,14 +7262,46 @@ Lower values allow the quantizer value to jump around more,
higher values force it to vary more smoothly.
.
.TP
.B direct_pred=<0\-2>
Determines the type of motion prediction used for direct macroblocks
in B-frames.
.PD 0
.RSs
.IPs 0
None: direct macroblocks are not used.
.IPs 1
Temporal: motion vectors are interpolated from the following P-frame.
.IPs 2
Spatial: motion vectors are extrapolated from neighboring blocks.
.RE
.PD 1
Spatial and temporal are approximately the same speed, and neither is
strictly better than the other.
The best choice depends on the movie.
direct_pred=0 is usually both slower and lower quality.
.
.TP
.B (no)b8x8mv
Use macroblock types b16x8, b8x16, b8x8 (default: enabled).
Requires B-frames.
See 4x4mv for details.
.
.TP
.B (no)4x4mv
Use all available interframe macroblock types (i16x16, i4x4, p16x16,
p16x8, p8x16, p8x8, p8x4, p4x8, p4x4, skip)
Use macroblock types p8x4, p4x8, p4x4 (default: disabled).
.br
The available interframe macroblock types are i16x16, i4x4, p16x16, p16x8,
p8x16, p8x8, p8x4, p4x8, p4x4, b16x16, b16x8, b8x16, b8x8, skip, direct.
i16x16, i4x4, p16x16-8x8, b16x16, and skip are always used.
.br
The idea is to find the type and size that best describe a certain area
of the picture, i.e.\& very effective for Anime, which usually contains
large areas of the same color (default: i16x16, i4x4, p16x16-8x8, skip).
Depending on the source material, it can improve or degrade quality, use
it with care.
of the picture.
For example, a global pan is better represented by 16x16 blocks, while
small moving objects are better represented by smaller blocks.
.br
4x4mv is recommended only with subq >= 3.
Depending on the source material, it can improve or degrade
quality, use it with care.
.
.TP
.B subq=<0\-5>
@ -7280,11 +7312,11 @@ It can improve quality significantly.
.RSs
0: halfpel only
.br
1: 1 iteration of qpel on the winning candidate (default)
1: 1 iteration of qpel on the winning candidate
.br
2: 2 iterations of qpel on the winning candidate
.br
3: halfpel on all MB types, qpel on the winner
3: halfpel on all MB types, qpel on the winner (default)
.br
4: qpel on all
.br