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update ratecontrol to new ff_eval API 

Originally committed as revision 6808 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Oded Shimon 2006-10-27 20:16:26 +00:00
parent ce459e12da
commit bb0f1ea72f
2 changed files with 64 additions and 54 deletions
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115
libavcodec/ratecontrol.c
View File

@ -48,12 +48,70 @@ void ff_write_pass1_stats(MpegEncContext *s){
s->f_code, s->b_code, s->current_picture.mc_mb_var_sum, s->current_picture.mb_var_sum, s->i_count, s->skip_count, s->header_bits);
}
static inline double qp2bits(RateControlEntry *rce, double qp){
if(qp<=0.0){
av_log(NULL, AV_LOG_ERROR, "qp<=0.0\n");
}
return rce->qscale * (double)(rce->i_tex_bits + rce->p_tex_bits+1)/ qp;
}
static inline double bits2qp(RateControlEntry *rce, double bits){
if(bits<0.9){
av_log(NULL, AV_LOG_ERROR, "bits<0.9\n");
}
return rce->qscale * (double)(rce->i_tex_bits + rce->p_tex_bits+1)/ bits;
}
int ff_rate_control_init(MpegEncContext *s)
{
RateControlContext *rcc= &s->rc_context;
int i;
char *error = NULL;
static const char *const_names[]={
"PI",
"E",
"iTex",
"pTex",
"tex",
"mv",
"fCode",
"iCount",
"mcVar",
"var",
"isI",
"isP",
"isB",
"avgQP",
"qComp",
/* "lastIQP",
"lastPQP",
"lastBQP",
"nextNonBQP",*/
"avgIITex",
"avgPITex",
"avgPPTex",
"avgBPTex",
"avgTex",
NULL
};
static double (*func1[])(void *, double)={
(void *)bits2qp,
(void *)qp2bits,
NULL
};
static const char *func1_names[]={
"bits2qp",
"qp2bits",
NULL
};
emms_c();
rcc->rc_eq_eval = ff_parse(s->avctx->rc_eq, const_names, func1, func1_names, NULL, NULL, &error);
if (!rcc->rc_eq_eval) {
av_log(s->avctx, AV_LOG_ERROR, "Error parsing rc_eq \"%s\": %s\n", s->avctx->rc_eq, error? error : "");
return -1;
}
for(i=0; i<5; i++){
rcc->pred[i].coeff= FF_QP2LAMBDA * 7.0;
rcc->pred[i].count= 1.0;
@ -195,6 +253,7 @@ void ff_rate_control_uninit(MpegEncContext *s)
RateControlContext *rcc= &s->rc_context;
emms_c();
ff_eval_free(rcc->rc_eq_eval);
av_freep(&rcc->entry);
#ifdef CONFIG_XVID
@ -203,20 +262,6 @@ void ff_rate_control_uninit(MpegEncContext *s)
#endif
}
static inline double qp2bits(RateControlEntry *rce, double qp){
if(qp<=0.0){
av_log(NULL, AV_LOG_ERROR, "qp<=0.0\n");
}
return rce->qscale * (double)(rce->i_tex_bits + rce->p_tex_bits+1)/ qp;
}
static inline double bits2qp(RateControlEntry *rce, double bits){
if(bits<0.9){
av_log(NULL, AV_LOG_ERROR, "bits<0.9\n");
}
return rce->qscale * (double)(rce->i_tex_bits + rce->p_tex_bits+1)/ bits;
}
int ff_vbv_update(MpegEncContext *s, int frame_size){
RateControlContext *rcc= &s->rc_context;
const double fps= 1/av_q2d(s->avctx->time_base);
@ -263,7 +308,6 @@ static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_f
const int pict_type= rce->new_pict_type;
const double mb_num= s->mb_num;
int i;
char *error = NULL;
double const_values[]={
M_PI,
@ -292,47 +336,10 @@ static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_f
(rcc->i_cplx_sum[pict_type] + rcc->p_cplx_sum[pict_type]) / (double)rcc->frame_count[pict_type],
0
};
static const char *const_names[]={
"PI",
"E",
"iTex",
"pTex",
"tex",
"mv",
"fCode",
"iCount",
"mcVar",
"var",
"isI",
"isP",
"isB",
"avgQP",
"qComp",
/* "lastIQP",
"lastPQP",
"lastBQP",
"nextNonBQP",*/
"avgIITex",
"avgPITex",
"avgPPTex",
"avgBPTex",
"avgTex",
NULL
};
static double (*func1[])(void *, double)={
(void *)bits2qp,
(void *)qp2bits,
NULL
};
static const char *func1_names[]={
"bits2qp",
"qp2bits",
NULL
};
bits= ff_eval2(s->avctx->rc_eq, const_values, const_names, func1, func1_names, NULL, NULL, rce, &error);
bits= ff_parse_eval(rcc->rc_eq_eval, const_values, rce);
if (isnan(bits)) {
av_log(s->avctx, AV_LOG_ERROR, "Error evaluating rc_eq \"%s\": %s\n", s->avctx->rc_eq, error? error : "");
av_log(s->avctx, AV_LOG_ERROR, "Error evaluating rc_eq \"%s\"\n", s->avctx->rc_eq);
return -1;
}

3
libavcodec/ratecontrol.h
View File

@ -28,6 +28,8 @@
* ratecontrol header.
*/
#include "eval.h"
typedef struct Predictor{
double coeff;
double count;
@ -80,6 +82,7 @@ typedef struct RateControlContext{
void *non_lavc_opaque; ///< context for non lavc rc code (for example xvid)
float dry_run_qscale; ///< for xvid rc
int last_picture_number; ///< for xvid rc
AVEvalExpr * rc_eq_eval;
}RateControlContext;
struct MpegEncContext;