/*
* Rate control for video encoders
*
- * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_factor, int frame_num);
void ff_write_pass1_stats(MpegEncContext *s){
- sprintf(s->avctx->stats_out, "in:%d out:%d type:%d q:%d itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d;\n",
+ snprintf(s->avctx->stats_out, 256, "in:%d out:%d type:%d q:%d itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d;\n",
s->current_picture_ptr->display_picture_number, s->current_picture_ptr->coded_picture_number, s->pict_type,
s->current_picture.quality, s->i_tex_bits, s->p_tex_bits, s->mv_bits, s->misc_bits,
s->f_code, s->b_code, s->current_picture.mc_mb_var_sum, s->current_picture.mb_var_sum, s->i_count);
p= strchr(p+1, ';');
}
i+= s->max_b_frames;
+ if(i<=0 || i>=INT_MAX / sizeof(RateControlEntry))
+ return -1;
rcc->entry = (RateControlEntry*)av_mallocz(i*sizeof(RateControlEntry));
rcc->num_entries= i;
- /* init all to skiped p frames (with b frames we might have a not encoded frame at the end FIXME) */
+ /* init all to skipped p frames (with b frames we might have a not encoded frame at the end FIXME) */
for(i=0; i<rcc->num_entries; i++){
RateControlEntry *rce= &rcc->entry[i];
rce->pict_type= rce->new_pict_type=P_TYPE;
bits= rce.i_tex_bits + rce.p_tex_bits;
q= get_qscale(s, &rce, rcc->pass1_wanted_bits/rcc->pass1_rc_eq_output_sum, i);
- rcc->pass1_wanted_bits+= s->bit_rate/(s->avctx->frame_rate / (double)s->avctx->frame_rate_base);
+ rcc->pass1_wanted_bits+= s->bit_rate/(1/av_q2d(s->avctx->time_base)); //FIXME missbehaves a little for variable fps
}
}
int ff_vbv_update(MpegEncContext *s, int frame_size){
RateControlContext *rcc= &s->rc_context;
- const double fps= (double)s->avctx->frame_rate / (double)s->avctx->frame_rate_base;
+ const double fps= 1/av_q2d(s->avctx->time_base);
const int buffer_size= s->avctx->rc_buffer_size;
const double min_rate= s->avctx->rc_min_rate/fps;
const double max_rate= s->avctx->rc_max_rate/fps;
double bits;
const int pict_type= rce->new_pict_type;
const double buffer_size= s->avctx->rc_buffer_size;
- const double fps= (double)s->avctx->frame_rate / (double)s->avctx->frame_rate_base;
+ const double fps= 1/av_q2d(s->avctx->time_base);
const double min_rate= s->avctx->rc_min_rate / fps;
const double max_rate= s->avctx->rc_max_rate / fps;
const float temp_cplx_masking= s->avctx->temporal_cplx_masking;
const float spatial_cplx_masking = s->avctx->spatial_cplx_masking;
const float p_masking = s->avctx->p_masking;
+ const float border_masking = s->avctx->border_masking;
float bits_sum= 0.0;
float cplx_sum= 0.0;
float cplx_tab[s->mb_num];
float bits_tab[s->mb_num];
- const int qmin= s->avctx->lmin;
- const int qmax= s->avctx->lmax;
+ const int qmin= s->avctx->mb_lmin;
+ const int qmax= s->avctx->mb_lmax;
Picture * const pic= &s->current_picture;
+ const int mb_width = s->mb_width;
+ const int mb_height = s->mb_height;
for(i=0; i<s->mb_num; i++){
const int mb_xy= s->mb_index2xy[i];
float spat_cplx= sqrt(pic->mb_var[mb_xy]);
const int lumi= pic->mb_mean[mb_xy];
float bits, cplx, factor;
+ int mb_x = mb_xy % s->mb_stride;
+ int mb_y = mb_xy / s->mb_stride;
+ int mb_distance;
+ float mb_factor = 0.0;
#if 0
if(spat_cplx < q/3) spat_cplx= q/3; //FIXME finetune
if(temp_cplx < q/3) temp_cplx= q/3; //FIXME finetune
factor*= (1.0 - (lumi-128)*(lumi-128)*lumi_masking);
else
factor*= (1.0 - (lumi-128)*(lumi-128)*dark_masking);
+
+ if(mb_x < mb_width/5){
+ mb_distance = mb_width/5 - mb_x;
+ mb_factor = (float)mb_distance / (float)(mb_width/5);
+ }else if(mb_x > 4*mb_width/5){
+ mb_distance = mb_x - 4*mb_width/5;
+ mb_factor = (float)mb_distance / (float)(mb_width/5);
+ }
+ if(mb_y < mb_height/5){
+ mb_distance = mb_height/5 - mb_y;
+ mb_factor = FFMAX(mb_factor, (float)mb_distance / (float)(mb_height/5));
+ }else if(mb_y > 4*mb_height/5){
+ mb_distance = mb_y - 4*mb_height/5;
+ mb_factor = FFMAX(mb_factor, (float)mb_distance / (float)(mb_height/5));
+ }
+
+ factor*= 1.0 - border_masking*mb_factor;
if(factor<0.00001) factor= 0.00001;
/* handle qmin/qmax cliping */
if(s->flags&CODEC_FLAG_NORMALIZE_AQP){
+ float factor= bits_sum/cplx_sum;
for(i=0; i<s->mb_num; i++){
float newq= q*cplx_tab[i]/bits_tab[i];
- newq*= bits_sum/cplx_sum;
+ newq*= factor;
if (newq > qmax){
bits_sum -= bits_tab[i];
cplx_sum -= cplx_tab[i]*q/qmin;
}
}
+ if(bits_sum < 0.001) bits_sum= 0.001;
+ if(cplx_sum < 0.001) cplx_sum= 0.001;
}
for(i=0; i<s->mb_num; i++){
get_qminmax(&qmin, &qmax, s, pict_type);
- fps= (double)s->avctx->frame_rate / (double)s->avctx->frame_rate_base;
+ fps= 1/av_q2d(s->avctx->time_base);
//printf("input_pic_num:%d pic_num:%d frame_rate:%d\n", s->input_picture_number, s->picture_number, s->frame_rate);
/* update predictors */
if(picture_number>2){
RateControlContext *rcc= &s->rc_context;
AVCodecContext *a= s->avctx;
int i;
- double fps= (double)s->avctx->frame_rate / (double)s->avctx->frame_rate_base;
+ double fps= 1/av_q2d(s->avctx->time_base);
double complexity[5]={0,0,0,0,0}; // aproximate bits at quant=1
double avg_quantizer[5];
uint64_t const_bits[5]={0,0,0,0,0}; // quantizer idependant bits