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use lagrange multipler instead of qscale 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11033 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2003-10-07 11:45:09 +00:00
parent ad786f5450
commit 6338346a8e
1 changed files with 18 additions and 6 deletions
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24
libmpcodecs/ve_lavc.c
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@ -58,11 +58,13 @@ static int lavc_param_vrate_tolerance = 1000*8;
static int lavc_param_mb_decision = 0; /* default is realtime encoding */
static int lavc_param_v4mv = 0;
static int lavc_param_vme = 4;
static int lavc_param_vqscale = 0;
static float lavc_param_vqscale = 0.0;
static int lavc_param_vqmin = 2;
static int lavc_param_vqmax = 31;
static int lavc_param_mb_qmin = 2;
static int lavc_param_mb_qmax = 31;
static float lavc_param_lmin = 2;
static float lavc_param_lmax = 31;
static int lavc_param_vqdiff = 3;
static float lavc_param_vqcompress = 0.5;
static float lavc_param_vqblur = 0.5;
@ -143,11 +145,13 @@ m_option_t lavcopts_conf[]={
{"mbd", &lavc_param_mb_decision, CONF_TYPE_INT, CONF_RANGE, 0, 9, NULL},
{"v4mv", &lavc_param_v4mv, CONF_TYPE_FLAG, 0, 0, 1, NULL},
{"vme", &lavc_param_vme, CONF_TYPE_INT, CONF_RANGE, 0, 5, NULL},
{"vqscale", &lavc_param_vqscale, CONF_TYPE_INT, CONF_RANGE, 1, 31, NULL},
{"vqscale", &lavc_param_vqscale, CONF_TYPE_FLOAT, CONF_RANGE, 0.01, 255.0, NULL},
{"vqmin", &lavc_param_vqmin, CONF_TYPE_INT, CONF_RANGE, 1, 31, NULL},
{"vqmax", &lavc_param_vqmax, CONF_TYPE_INT, CONF_RANGE, 1, 31, NULL},
{"mbqmin", &lavc_param_mb_qmin, CONF_TYPE_INT, CONF_RANGE, 1, 31, NULL},
{"mbqmax", &lavc_param_mb_qmax, CONF_TYPE_INT, CONF_RANGE, 1, 31, NULL},
{"lmin", &lavc_param_lmin, CONF_TYPE_FLOAT, CONF_RANGE, 0.01, 255.0, NULL},
{"lmax", &lavc_param_lmax, CONF_TYPE_FLOAT, CONF_RANGE, 0.01, 255.0, NULL},
{"vqdiff", &lavc_param_vqdiff, CONF_TYPE_INT, CONF_RANGE, 1, 31, NULL},
{"vqcomp", &lavc_param_vqcompress, CONF_TYPE_FLOAT, CONF_RANGE, 0.0, 1.0, NULL},
{"vqblur", &lavc_param_vqblur, CONF_TYPE_FLOAT, CONF_RANGE, 0.0, 1.0, NULL},
@ -248,6 +252,10 @@ struct vf_priv_s {
#define mux_v (vf->priv->mux)
#define lavc_venc_context (vf->priv->context)
#if LIBAVCODEC_BUILD < 4684
#define FF_QP2LAMBDA 1
#endif
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
@ -282,6 +290,10 @@ static int config(struct vf_instance_s* vf,
#if LIBAVCODEC_BUILD >= 4646
lavc_venc_context->mb_qmin= lavc_param_mb_qmin;
lavc_venc_context->mb_qmax= lavc_param_mb_qmax;
#endif
#if LIBAVCODEC_BUILD >= 4684
lavc_venc_context->lmin= (int)(FF_QP2LAMBDA * lavc_param_lmin + 0.5);
lavc_venc_context->lmax= (int)(FF_QP2LAMBDA * lavc_param_lmax + 0.5);
#endif
lavc_venc_context->max_qdiff= lavc_param_vqdiff;
lavc_venc_context->qcompress= lavc_param_vqcompress;
@ -547,12 +559,12 @@ static int config(struct vf_instance_s* vf,
/* fixed qscale :p */
if (lavc_param_vqscale)
{
printf("Using constant qscale = %d (VBR)\n", lavc_param_vqscale);
printf("Using constant qscale = %f (VBR)\n", lavc_param_vqscale);
lavc_venc_context->flags |= CODEC_FLAG_QSCALE;
#if LIBAVCODEC_BUILD >= 4668
lavc_venc_context->global_quality= FF_QUALITY_SCALE * lavc_param_vqscale;
lavc_venc_context->global_quality=
#endif
vf->priv->pic->quality = lavc_param_vqscale;
vf->priv->pic->quality = (int)(FF_QP2LAMBDA * lavc_param_vqscale + 0.5);
}
if (avcodec_open(lavc_venc_context, vf->priv->codec) != 0) {
@ -679,7 +691,7 @@ static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
}
quality /= w * h;
} else
quality = lavc_venc_context->coded_frame->quality;
quality = lavc_venc_context->coded_frame->quality / (float)FF_QP2LAMBDA;
fprintf(fvstats, "%6d, %2.2f, %6d, %2.2f, %2.2f, %2.2f, %2.2f %c\n",
lavc_venc_context->coded_frame->coded_picture_number,