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Code Issues Releases Wiki Activity

lavc 4663 / quantizer bias

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9646 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2003-03-22 12:46:44 +00:00
parent 169af37678
commit 4e3270d131
2 changed files with 30 additions and 1 deletions
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18
DOCS/en/mplayer.1
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@ -3162,6 +3162,24 @@ Note: vqmin should be 8 or larger.
.IPs umv
unlimited MVs (H.263+ only)
Allow encoding of abritarily long MVs.
.IPs ibias=<\-256\-256>
intra quantizer bias (256 == 1.0)
.br
mpeg style quantizer default: 96
.br
h263 style quantizer default: 0
.br
Note: the h263 MMX quantizer cannot handle positive biases (set vfdct=1or2)
the mpeg MMX quantizer cannot handle negative biases (set vfdct=1or2)
.IPs pbias=<\-256\-256>
inter quantizer bias (256 == 1.0)
.br
mpeg style quantizer default: 0
.br
h263 style quantizer default: -64
.br
Note: the h263 MMX quantizer cannot handle positive biases (set vfdct=1or2)
the mpeg MMX quantizer cannot handle negative biases (set vfdct=1or2)
.RE
.
.TP

13
libmpcodecs/ve_lavc.c
View File

@ -120,6 +120,10 @@ static int lavc_param_last_pred= 0;
static int lavc_param_pre_me= 1;
static int lavc_param_me_subpel_quality= 8;
static int lavc_param_me_range= 0;
#if LIBAVCODEC_BUILD >= 4663
static int lavc_param_ibias= FF_DEFAULT_QUANT_BIAS;
static int lavc_param_pbias= FF_DEFAULT_QUANT_BIAS;
#endif
#include "cfgparser.h"
@ -200,6 +204,10 @@ struct config lavcopts_conf[]={
#ifdef CODEC_FLAG_H263P_AIC
{"aic", &lavc_param_aic, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_H263P_AIC, NULL},
{"umv", &lavc_param_umv, CONF_TYPE_FLAG, 0, 0, CODEC_FLAG_H263P_UMV, NULL},
#endif
#if LIBAVCODEC_BUILD >= 4663
{"ibias", &lavc_param_ibias, CONF_TYPE_INT, CONF_RANGE, -512, 512, NULL},
{"pbias", &lavc_param_pbias, CONF_TYPE_INT, CONF_RANGE, -512, 512, NULL},
#endif
{NULL, NULL, 0, 0, 0, 0, NULL}
};
@ -295,6 +303,10 @@ static int config(struct vf_instance_s* vf,
#if LIBAVCODEC_BUILD >= 4659
lavc_venc_context->me_range= lavc_param_me_range;
#endif
#if LIBAVCODEC_BUILD >= 4663
lavc_venc_context->intra_quant_bias= lavc_param_ibias;
lavc_venc_context->inter_quant_bias= lavc_param_pbias;
#endif
p= lavc_param_rc_override_string;
for(i=0; p; i++){
@ -556,7 +568,6 @@ static void uninit(struct vf_instance_s* vf){
#if LIBAVCODEC_BUILD >= 4643
if(lavc_param_psnr){
double f= lavc_venc_context->width*lavc_venc_context->height*255.0*255.0;
f*= lavc_venc_context->coded_frame->coded_picture_number;
printf("PSNR: Y:%2.2f, Cb:%2.2f, Cr:%2.2f, All:%2.2f\n",