From fd8450175636485d520387d254b7fed9997431b5 Mon Sep 17 00:00:00 2001 From: diego Date: Mon, 6 Sep 2004 10:50:19 +0000 Subject: MB, QP explanation, some more consistency git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13260 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/man/en/mplayer.1 | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) (limited to 'DOCS') diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index 668c7919e0..b413d40190 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -2916,7 +2916,7 @@ error concealment: .RSss 1: Use strong deblock filter for damaged MBs. .br -2: iterative MV search (slow) +2: iterative motion vector (MV) search (slow) .br 3: all (default) .REss @@ -2946,15 +2946,15 @@ debug: .br 4: bitstream .br -8: MB type +8: macroblock (MB) type .br -16: QP +16: quantizer parameter (QP) .br -32: Motion vector +32: motion vector .br 0x0040: motion vector visualization (use \-noslices) .br -0x0080: MB skip +0x0080: macroblock (MB) skip .br 0x0100: startcode .br @@ -3568,7 +3568,7 @@ force quantization parameter (default: 0, use QP from video) . .TP .B qp=equation -QP change filter +quantizer parameter (QP) change filter .RSs .IPs equation some equation like "2+2*sin(PI*qp)" @@ -5288,7 +5288,7 @@ Bits used for motion vectors .IPs fCode maximum length of motion vector in log2 scale .IPs iCount -number of intra macro blocks / number of macro blocks +number of intra macroblocks / number of macroblocks .IPs var\ \ spatial complexity .IPs mcVar @@ -5529,7 +5529,7 @@ decoding. .br .I HINT: Crop any black borders completely as they will reduce the quality -of the macro blocks (also applies without scplx_mask). +of the macroblocks (also applies without scplx_mask). .RSs .IPs 0.0 disabled (default) @@ -5750,7 +5750,7 @@ the minimum of error and lambda*bits. .PD 0 .RSs .IPs lambda -QP dependant constant +quantizer parameter (QP) dependant constant .IPs bits\ amount of bits needed to encode the block .IPs error @@ -5770,9 +5770,9 @@ Try to encode each MB with MV=<0,0> and choose the better one. This has no effect if mbd=0. . .TP -.B qprd\ \ \ -rate distorted optimal QP for the given lambda of each macroblock, note this -needs mbd=2 +.B qprd (mbd=2 only) +rate distorted optimal quantizer parameter (QP) for the given +lambda of each macroblock . .TP .B last_pred=<0\-99> @@ -5782,7 +5782,7 @@ Amount of motion predictors from the previous frame .IPs 0 (default) .IPs a -will use 2a+1 x 2a+1 macro block square of motion vector predictors from the +will use 2a+1 x 2a+1 macroblock square of motion vector predictors from the previous frame .RE .PD 1 @@ -5981,7 +5981,7 @@ Encode the fields of interlaced video material. Turn this option on for interlaced content. .br .I NOTE: -Should you rescale the video, you would need a interlace-aware resizer, +Should you rescale the video, you would need an interlace-aware resizer, which you can activate with -vf scale=::1. . .TP @@ -6306,7 +6306,7 @@ This selects the quantizer to use. 20-40 is a useful range (default: 26). Lower values result in better fidelity, but higher bitrates. Note that quantization in H.264 works differently from MPEG[124]. -H.264's QP is on a logarithmic scale. +H.264's quantizer parameter (QP) is on a logarithmic scale. 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]. -- cgit v1.2.3