* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <math.h>
-#include "common.h"
+
+/**
+ * @file ratecontrol.c
+ * Rate control for video encoders.
+ */
+
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
#undef NDEBUG // allways check asserts, the speed effect is far too small to disable them
#include <assert.h>
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
#ifndef M_E
#define M_E 2.718281828
#endif
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->frame_rate / (double)FRAME_RATE_BASE);
+ rcc->pass1_wanted_bits+= s->bit_rate/(s->avctx->frame_rate / (double)s->avctx->frame_rate_base);
}
}
static void update_rc_buffer(MpegEncContext *s, int frame_size){
RateControlContext *rcc= &s->rc_context;
- const double fps= (double)s->frame_rate / FRAME_RATE_BASE;
+ const double fps= (double)s->avctx->frame_rate / (double)s->avctx->frame_rate_base;
const double 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;
(rcc->i_cplx_sum[pict_type] + rcc->p_cplx_sum[pict_type]) / (double)rcc->frame_count[pict_type],
0
};
- char *const_names[]={
+ static const char *const_names[]={
"PI",
"E",
"iTex",
(void *)qp2bits,
NULL
};
- char *func1_names[]={
+ static const char *func1_names[]={
"bits2qp",
"qp2bits",
NULL
const int pict_type= rce->new_pict_type;
const double last_p_q = rcc->last_qscale_for[P_TYPE];
const double last_non_b_q= rcc->last_qscale_for[rcc->last_non_b_pict_type];
-
+
if (pict_type==I_TYPE && (a->i_quant_factor>0.0 || rcc->last_non_b_pict_type==P_TYPE))
q= last_p_q *ABS(a->i_quant_factor) + a->i_quant_offset;
else if(pict_type==B_TYPE && a->b_quant_factor>0.0)
/* last qscale / qdiff stuff */
if(rcc->last_non_b_pict_type==pict_type || pict_type!=I_TYPE){
double last_q= rcc->last_qscale_for[pict_type];
+
if (q > last_q + a->max_qdiff) q= last_q + a->max_qdiff;
else if(q < last_q - a->max_qdiff) q= last_q - a->max_qdiff;
}
* gets the qmin & qmax for pict_type
*/
static void get_qminmax(int *qmin_ret, int *qmax_ret, MpegEncContext *s, int pict_type){
- int qmin= s->qmin;
- int qmax= s->qmax;
+ int qmin= s->avctx->qmin;
+ int qmax= s->avctx->qmax;
if(pict_type==B_TYPE){
qmin= (int)(qmin*ABS(s->avctx->b_quant_factor)+s->avctx->b_quant_offset + 0.5);
}
if(qmin<1) qmin=1;
- if(qmin==1 && s->qmin>1) qmin=2; //avoid qmin=1 unless the user wants qmin=1
+ if(qmin==1 && s->avctx->qmin>1) qmin=2; //avoid qmin=1 unless the user wants qmin=1
if(qmin<3 && s->max_qcoeff<=128 && pict_type==I_TYPE) qmin=3; //reduce cliping problems
return p->coeff*var / (q*p->count);
}
+/*
static double predict_qp(Predictor *p, double size, double var)
{
//printf("coeff:%f, count:%f, var:%f, size:%f//\n", p->coeff, p->count, var, size);
return p->coeff*var / (size*p->count);
}
+*/
static void update_predictor(Predictor *p, double q, double var, double size)
{
float cplx_sum= 0.0;
float cplx_tab[s->mb_num];
float bits_tab[s->mb_num];
- const int qmin= 2; //s->avctx->mb_qmin;
- const int qmax= 31; //s->avctx->mb_qmax;
+ const int qmin= s->avctx->mb_qmin;
+ const int qmax= s->avctx->mb_qmax;
Picture * const pic= &s->current_picture;
+ int last_qscale=0;
for(i=0; i<s->mb_num; i++){
- float temp_cplx= sqrt(pic->mc_mb_var[i]);
- float spat_cplx= sqrt(pic->mb_var[i]);
- const int lumi= pic->mb_mean[i];
+ const int mb_xy= s->mb_index2xy[i];
+ float temp_cplx= sqrt(pic->mc_mb_var[mb_xy]);
+ float spat_cplx= sqrt(pic->mb_var[mb_xy]);
+ const int lumi= pic->mb_mean[mb_xy];
float bits, cplx, factor;
if(spat_cplx < q/3) spat_cplx= q/3; //FIXME finetune
if(temp_cplx < q/3) temp_cplx= q/3; //FIXME finetune
- if((s->mb_type[i]&MB_TYPE_INTRA)){//FIXME hq mode
+ if((s->mb_type[mb_xy]&MB_TYPE_INTRA)){//FIXME hq mode
cplx= spat_cplx;
factor= 1.0 + p_masking;
}else{
}
for(i=0; i<s->mb_num; i++){
+ const int mb_xy= s->mb_index2xy[i];
float newq= q*cplx_tab[i]/bits_tab[i];
int intq;
newq*= bits_sum/cplx_sum;
}
- if(i && ABS(pic->qscale_table[i-1] - newq)<0.75)
- intq= pic->qscale_table[i-1];
+ if(i && ABS(last_qscale - newq)<0.75)
+ intq= last_qscale;
else
intq= (int)(newq + 0.5);
else if(intq < qmin) intq= qmin;
//if(i%s->mb_width==0) printf("\n");
//printf("%2d%3d ", intq, ff_sqrt(s->mc_mb_var[i]));
- pic->qscale_table[i]= intq;
+ last_qscale=
+ pic->qscale_table[mb_xy]= intq;
}
}
get_qminmax(&qmin, &qmax, s, pict_type);
- fps= (double)s->frame_rate / FRAME_RATE_BASE;
+ fps= (double)s->avctx->frame_rate / (double)s->avctx->frame_rate_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){
assert(q>0.0);
}
-//printf("qmin:%d, qmax:%d, q:%f\n", qmin, qmax, q);
-
+
+ if(s->avctx->debug&FF_DEBUG_RC){
+ printf("%c qp:%d<%2.1f<%d %d want:%d total:%d comp:%f st_q:%2.2f size:%d var:%d/%d br:%d fps:%d\n",
+ av_get_pict_type_char(pict_type), qmin, q, qmax, picture_number, (int)wanted_bits/1000, (int)s->total_bits/1000,
+ br_compensation, short_term_q, s->frame_bits, pic->mb_var_sum, pic->mc_mb_var_sum, s->bit_rate/1000, (int)fps
+ );
+ }
if (q<qmin) q=qmin;
else if(q>qmax) q=qmax;
-
-// printf("%f %d %d %d\n", q, picture_number, (int)wanted_bits, (int)s->total_bits);
-
-//printf("diff:%d comp:%f st_q:%f last_size:%d type:%d\n", (int)diff, br_compensation,
-// short_term_q, s->frame_bits, pict_type);
-//printf("%d %d\n", s->bit_rate, (int)fps);
if(s->adaptive_quant)
adaptive_quantization(s, q);
{
RateControlContext *rcc= &s->rc_context;
int i;
- double fps= (double)s->frame_rate / FRAME_RATE_BASE;
+ double fps= (double)s->avctx->frame_rate / (double)s->avctx->frame_rate_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
uint64_t all_available_bits= (uint64_t)(s->bit_rate*(double)rcc->num_entries/fps);
double rate_factor=0;
double step;
- int last_i_frame=-10000000;
+ //int last_i_frame=-10000000;
const int filter_size= (int)(s->qblur*4) | 1;
double expected_bits;
double *qscale, *blured_qscale;
}
//printf("%lld %lld %lld %lld\n", available_bits[I_TYPE], available_bits[P_TYPE], available_bits[B_TYPE], all_available_bits);
- qscale= malloc(sizeof(double)*rcc->num_entries);
- blured_qscale= malloc(sizeof(double)*rcc->num_entries);
+ qscale= av_malloc(sizeof(double)*rcc->num_entries);
+ blured_qscale= av_malloc(sizeof(double)*rcc->num_entries);
for(step=256*256; step>0.0000001; step*=0.5){
expected_bits=0;
// printf("%f %d %f\n", expected_bits, (int)all_available_bits, rate_factor);
if(expected_bits > all_available_bits) rate_factor-= step;
}
- free(qscale);
- free(blured_qscale);
+ av_free(qscale);
+ av_free(blured_qscale);
if(abs(expected_bits/all_available_bits - 1.0) > 0.01 ){
fprintf(stderr, "Error: 2pass curve failed to converge\n");
projects / ffmpeg / blobdiff