*
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file ratecontrol.c
+ * @file
* Rate control for video encoders.
*/
+#include "libavutil/intmath.h"
#include "avcodec.h"
#include "dsputil.h"
#include "ratecontrol.h"
#include "mpegvideo.h"
-#include "eval.h"
+#include "libavutil/eval.h"
#undef NDEBUG // Always check asserts, the speed effect is far too small to disable them.
#include <assert.h>
void ff_write_pass1_stats(MpegEncContext *s){
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 skipcount:%d hbits:%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, s->skip_count, s->header_bits);
+ s->current_picture_ptr->f.display_picture_number, s->current_picture_ptr->f.coded_picture_number, s->pict_type,
+ s->current_picture.f.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, s->skip_count, s->header_bits);
}
static inline double qp2bits(RateControlEntry *rce, double qp){
int ff_rate_control_init(MpegEncContext *s)
{
RateControlContext *rcc= &s->rc_context;
- int i;
- const char *error = NULL;
- static const char *const_names[]={
+ int i, res;
+ static const char * const const_names[]={
"PI",
"E",
"iTex",
"avgTex",
NULL
};
- static double (*func1[])(void *, double)={
+ static double (* const func1[])(void *, double)={
(void *)bits2qp,
(void *)qp2bits,
NULL
};
- static const char *func1_names[]={
+ static const char * const 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;
+ res = av_expr_parse(&rcc->rc_eq_eval, s->avctx->rc_eq ? s->avctx->rc_eq : "tex^qComp", const_names, func1_names, func1, NULL, NULL, 0, s->avctx);
+ if (res < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "Error parsing rc_eq \"%s\"\n", s->avctx->rc_eq);
+ return res;
}
for(i=0; i<5; i++){
/* 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=FF_P_TYPE;
+ rce->pict_type= rce->new_pict_type=AV_PICTURE_TYPE_P;
rce->qscale= rce->new_qscale=FF_QP2LAMBDA * 2;
rce->misc_bits= s->mb_num + 10;
rce->mb_var_sum= s->mb_num*100;
//FIXME maybe move to end
if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) {
-#ifdef CONFIG_LIBXVID
+#if CONFIG_LIBXVID
return ff_xvid_rate_control_init(s);
#else
av_log(s->avctx, AV_LOG_ERROR, "Xvid ratecontrol requires libavcodec compiled with Xvid support.\n");
for(i=0; i<60*30; i++){
double bits= s->avctx->rc_initial_cplx * (i/10000.0 + 1.0)*s->mb_num;
RateControlEntry rce;
- double q;
- if (i%((s->gop_size+3)/4)==0) rce.pict_type= FF_I_TYPE;
- else if(i%(s->max_b_frames+1)) rce.pict_type= FF_B_TYPE;
- else rce.pict_type= FF_P_TYPE;
+ if (i%((s->gop_size+3)/4)==0) rce.pict_type= AV_PICTURE_TYPE_I;
+ else if(i%(s->max_b_frames+1)) rce.pict_type= AV_PICTURE_TYPE_B;
+ else rce.pict_type= AV_PICTURE_TYPE_P;
rce.new_pict_type= rce.pict_type;
rce.mc_mb_var_sum= bits*s->mb_num/100000;
rce.b_code = 1;
rce.misc_bits= 1;
- if(s->pict_type== FF_I_TYPE){
+ if(s->pict_type== AV_PICTURE_TYPE_I){
rce.i_count = s->mb_num;
rce.i_tex_bits= bits;
rce.p_tex_bits= 0;
rcc->mv_bits_sum[rce.pict_type] += rce.mv_bits;
rcc->frame_count[rce.pict_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);
+ get_qscale(s, &rce, rcc->pass1_wanted_bits/rcc->pass1_rc_eq_output_sum, i);
rcc->pass1_wanted_bits+= s->bit_rate/(1/av_q2d(s->avctx->time_base)); //FIXME misbehaves a little for variable fps
}
}
RateControlContext *rcc= &s->rc_context;
emms_c();
- ff_eval_free(rcc->rc_eq_eval);
+ av_expr_free(rcc->rc_eq_eval);
av_freep(&rcc->entry);
-#ifdef CONFIG_LIBXVID
+#if CONFIG_LIBXVID
if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID)
ff_xvid_rate_control_uninit(s);
#endif
}
/**
- * modifies the bitrate curve from pass1 for one frame
+ * Modify the bitrate curve from pass1 for one frame.
*/
static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_factor, int frame_num){
RateControlContext *rcc= &s->rc_context;
rce->p_tex_bits*rce->qscale,
(rce->i_tex_bits + rce->p_tex_bits)*(double)rce->qscale,
rce->mv_bits/mb_num,
- rce->pict_type == FF_B_TYPE ? (rce->f_code + rce->b_code)*0.5 : rce->f_code,
+ rce->pict_type == AV_PICTURE_TYPE_B ? (rce->f_code + rce->b_code)*0.5 : rce->f_code,
rce->i_count/mb_num,
rce->mc_mb_var_sum/mb_num,
rce->mb_var_sum/mb_num,
- rce->pict_type == FF_I_TYPE,
- rce->pict_type == FF_P_TYPE,
- rce->pict_type == FF_B_TYPE,
+ rce->pict_type == AV_PICTURE_TYPE_I,
+ rce->pict_type == AV_PICTURE_TYPE_P,
+ rce->pict_type == AV_PICTURE_TYPE_B,
rcc->qscale_sum[pict_type] / (double)rcc->frame_count[pict_type],
a->qcompress,
-/* rcc->last_qscale_for[FF_I_TYPE],
- rcc->last_qscale_for[FF_P_TYPE],
- rcc->last_qscale_for[FF_B_TYPE],
+/* rcc->last_qscale_for[AV_PICTURE_TYPE_I],
+ rcc->last_qscale_for[AV_PICTURE_TYPE_P],
+ rcc->last_qscale_for[AV_PICTURE_TYPE_B],
rcc->next_non_b_qscale,*/
- rcc->i_cplx_sum[FF_I_TYPE] / (double)rcc->frame_count[FF_I_TYPE],
- rcc->i_cplx_sum[FF_P_TYPE] / (double)rcc->frame_count[FF_P_TYPE],
- rcc->p_cplx_sum[FF_P_TYPE] / (double)rcc->frame_count[FF_P_TYPE],
- rcc->p_cplx_sum[FF_B_TYPE] / (double)rcc->frame_count[FF_B_TYPE],
+ rcc->i_cplx_sum[AV_PICTURE_TYPE_I] / (double)rcc->frame_count[AV_PICTURE_TYPE_I],
+ rcc->i_cplx_sum[AV_PICTURE_TYPE_P] / (double)rcc->frame_count[AV_PICTURE_TYPE_P],
+ rcc->p_cplx_sum[AV_PICTURE_TYPE_P] / (double)rcc->frame_count[AV_PICTURE_TYPE_P],
+ rcc->p_cplx_sum[AV_PICTURE_TYPE_B] / (double)rcc->frame_count[AV_PICTURE_TYPE_B],
(rcc->i_cplx_sum[pict_type] + rcc->p_cplx_sum[pict_type]) / (double)rcc->frame_count[pict_type],
0
};
- bits= ff_parse_eval(rcc->rc_eq_eval, const_values, rce);
+ bits = av_expr_eval(rcc->rc_eq_eval, const_values, rce);
if (isnan(bits)) {
av_log(s->avctx, AV_LOG_ERROR, "Error evaluating rc_eq \"%s\"\n", s->avctx->rc_eq);
return -1;
q= bits2qp(rce, bits);
/* I/B difference */
- if (pict_type==FF_I_TYPE && s->avctx->i_quant_factor<0.0)
+ if (pict_type==AV_PICTURE_TYPE_I && s->avctx->i_quant_factor<0.0)
q= -q*s->avctx->i_quant_factor + s->avctx->i_quant_offset;
- else if(pict_type==FF_B_TYPE && s->avctx->b_quant_factor<0.0)
+ else if(pict_type==AV_PICTURE_TYPE_B && s->avctx->b_quant_factor<0.0)
q= -q*s->avctx->b_quant_factor + s->avctx->b_quant_offset;
if(q<1) q=1;
RateControlContext *rcc= &s->rc_context;
AVCodecContext *a= s->avctx;
const int pict_type= rce->new_pict_type;
- const double last_p_q = rcc->last_qscale_for[FF_P_TYPE];
+ const double last_p_q = rcc->last_qscale_for[AV_PICTURE_TYPE_P];
const double last_non_b_q= rcc->last_qscale_for[rcc->last_non_b_pict_type];
- if (pict_type==FF_I_TYPE && (a->i_quant_factor>0.0 || rcc->last_non_b_pict_type==FF_P_TYPE))
+ if (pict_type==AV_PICTURE_TYPE_I && (a->i_quant_factor>0.0 || rcc->last_non_b_pict_type==AV_PICTURE_TYPE_P))
q= last_p_q *FFABS(a->i_quant_factor) + a->i_quant_offset;
- else if(pict_type==FF_B_TYPE && a->b_quant_factor>0.0)
+ else if(pict_type==AV_PICTURE_TYPE_B && a->b_quant_factor>0.0)
q= last_non_b_q* a->b_quant_factor + a->b_quant_offset;
if(q<1) q=1;
/* last qscale / qdiff stuff */
- if(rcc->last_non_b_pict_type==pict_type || pict_type!=FF_I_TYPE){
+ if(rcc->last_non_b_pict_type==pict_type || pict_type!=AV_PICTURE_TYPE_I){
double last_q= rcc->last_qscale_for[pict_type];
const int maxdiff= FF_QP2LAMBDA * a->max_qdiff;
rcc->last_qscale_for[pict_type]= q; //Note we cannot do that after blurring
- if(pict_type!=FF_B_TYPE)
+ if(pict_type!=AV_PICTURE_TYPE_B)
rcc->last_non_b_pict_type= pict_type;
return q;
}
/**
- * gets the qmin & qmax for pict_type
+ * Get the qmin & qmax for pict_type.
*/
static void get_qminmax(int *qmin_ret, int *qmax_ret, MpegEncContext *s, int pict_type){
int qmin= s->avctx->lmin;
assert(qmin <= qmax);
- if(pict_type==FF_B_TYPE){
+ if(pict_type==AV_PICTURE_TYPE_B){
qmin= (int)(qmin*FFABS(s->avctx->b_quant_factor)+s->avctx->b_quant_offset + 0.5);
qmax= (int)(qmax*FFABS(s->avctx->b_quant_factor)+s->avctx->b_quant_offset + 0.5);
- }else if(pict_type==FF_I_TYPE){
+ }else if(pict_type==AV_PICTURE_TYPE_I){
qmin= (int)(qmin*FFABS(s->avctx->i_quant_factor)+s->avctx->i_quant_offset + 0.5);
qmax= (int)(qmax*FFABS(s->avctx->i_quant_factor)+s->avctx->i_quant_offset + 0.5);
}
static double modify_qscale(MpegEncContext *s, RateControlEntry *rce, double q, int frame_num){
RateControlContext *rcc= &s->rc_context;
int qmin, qmax;
- double bits;
const int pict_type= rce->new_pict_type;
const double buffer_size= s->avctx->rc_buffer_size;
const double fps= 1/av_q2d(s->avctx->time_base);
get_qminmax(&qmin, &qmax, s, pict_type);
/* modulation */
- if(s->avctx->rc_qmod_freq && frame_num%s->avctx->rc_qmod_freq==0 && pict_type==FF_P_TYPE)
+ if(s->avctx->rc_qmod_freq && frame_num%s->avctx->rc_qmod_freq==0 && pict_type==AV_PICTURE_TYPE_P)
q*= s->avctx->rc_qmod_amp;
- bits= qp2bits(rce, q);
//printf("q:%f\n", q);
/* buffer overflow/underflow protection */
if(buffer_size){
else if(d<0.0001) d=0.0001;
q*= pow(d, 1.0/s->avctx->rc_buffer_aggressivity);
- q_limit= bits2qp(rce, FFMAX((min_rate - buffer_size + rcc->buffer_index)*3, 1));
+ q_limit= bits2qp(rce, FFMAX((min_rate - buffer_size + rcc->buffer_index) * s->avctx->rc_min_vbv_overflow_use, 1));
if(q > q_limit){
if(s->avctx->debug&FF_DEBUG_RC){
av_log(s->avctx, AV_LOG_DEBUG, "limiting QP %f -> %f\n", q, q_limit);
else if(d<0.0001) d=0.0001;
q/= pow(d, 1.0/s->avctx->rc_buffer_aggressivity);
- q_limit= bits2qp(rce, FFMAX(rcc->buffer_index/3, 1));
+ q_limit= bits2qp(rce, FFMAX(rcc->buffer_index * s->avctx->rc_max_available_vbv_use, 1));
if(q < q_limit){
if(s->avctx->debug&FF_DEBUG_RC){
av_log(s->avctx, AV_LOG_DEBUG, "limiting QP %f -> %f\n", q, q_limit);
Picture * const pic= &s->current_picture;
emms_c();
-#ifdef CONFIG_LIBXVID
+#if CONFIG_LIBXVID
if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID)
return ff_xvid_rate_estimate_qscale(s, dry_run);
#endif
//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 && !dry_run){
- const int last_var= s->last_pict_type == FF_I_TYPE ? rcc->last_mb_var_sum : rcc->last_mc_mb_var_sum;
+ const int last_var= s->last_pict_type == AV_PICTURE_TYPE_I ? rcc->last_mb_var_sum : rcc->last_mc_mb_var_sum;
update_predictor(&rcc->pred[s->last_pict_type], rcc->last_qscale, sqrt(last_var), s->frame_bits);
}
//FIXME add a dts field to AVFrame and ensure its set and use it here instead of reordering
//but the reordering is simpler for now until h.264 b pyramid must be handeld
- if(s->pict_type == FF_B_TYPE || s->low_delay)
+ if(s->pict_type == AV_PICTURE_TYPE_B || s->low_delay)
dts_pic= s->current_picture_ptr;
else
dts_pic= s->last_picture_ptr;
//if(dts_pic)
// av_log(NULL, AV_LOG_ERROR, "%Ld %Ld %Ld %d\n", s->current_picture_ptr->pts, s->user_specified_pts, dts_pic->pts, picture_number);
- if(!dts_pic || dts_pic->pts == AV_NOPTS_VALUE)
+ if (!dts_pic || dts_pic->f.pts == AV_NOPTS_VALUE)
wanted_bits= (uint64_t)(s->bit_rate*(double)picture_number/fps);
else
- wanted_bits= (uint64_t)(s->bit_rate*(double)dts_pic->pts/fps);
+ wanted_bits = (uint64_t)(s->bit_rate*(double)dts_pic->f.pts / fps);
}
diff= s->total_bits - wanted_bits;
br_compensation= (a->bit_rate_tolerance - diff)/a->bit_rate_tolerance;
if(br_compensation<=0.0) br_compensation=0.001;
- var= pict_type == FF_I_TYPE ? pic->mb_var_sum : pic->mc_mb_var_sum;
+ var= pict_type == AV_PICTURE_TYPE_I ? pic->mb_var_sum : pic->mc_mb_var_sum;
short_term_q = 0; /* avoid warning */
if(s->flags&CODEC_FLAG_PASS2){
- if(pict_type!=FF_I_TYPE)
+ if(pict_type!=AV_PICTURE_TYPE_I)
assert(pict_type == rce->new_pict_type);
q= rce->new_qscale / br_compensation;
rce->misc_bits= 1;
bits= predict_size(&rcc->pred[pict_type], rce->qscale, sqrt(var));
- if(pict_type== FF_I_TYPE){
+ if(pict_type== AV_PICTURE_TYPE_I){
rce->i_count = s->mb_num;
rce->i_tex_bits= bits;
rce->p_tex_bits= 0;
//printf("%f ", q);
assert(q>0.0);
- if(pict_type==FF_P_TYPE || s->intra_only){ //FIXME type dependent blur like in 2-pass
+ if(pict_type==AV_PICTURE_TYPE_P || s->intra_only){ //FIXME type dependent blur like in 2-pass
rcc->short_term_qsum*=a->qblur;
rcc->short_term_qcount*=a->qblur;
if(s->avctx->debug&FF_DEBUG_RC){
av_log(s->avctx, AV_LOG_DEBUG, "%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,
+ av_get_picture_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
);
}
rcc->last_mc_mb_var_sum= pic->mc_mb_var_sum;
rcc->last_mb_var_sum= pic->mb_var_sum;
}
-#if 0
-{
- static int mvsum=0, texsum=0;
- mvsum += s->mv_bits;
- texsum += s->i_tex_bits + s->p_tex_bits;
- printf("%d %d//\n\n", mvsum, texsum);
-}
-#endif
return q;
}
complexity[rce->new_pict_type]+= (rce->i_tex_bits+ rce->p_tex_bits)*(double)rce->qscale;
const_bits[rce->new_pict_type]+= rce->mv_bits + rce->misc_bits;
}
- all_const_bits= const_bits[FF_I_TYPE] + const_bits[FF_P_TYPE] + const_bits[FF_B_TYPE];
+ all_const_bits= const_bits[AV_PICTURE_TYPE_I] + const_bits[AV_PICTURE_TYPE_P] + const_bits[AV_PICTURE_TYPE_B];
if(all_available_bits < all_const_bits){
av_log(s->avctx, AV_LOG_ERROR, "requested bitrate is too low\n");
/* find qscale */
for(i=0; i<rcc->num_entries; i++){
+ RateControlEntry *rce= &rcc->entry[i];
qscale[i]= get_qscale(s, &rcc->entry[i], rate_factor, i);
+ rcc->last_qscale_for[rce->pict_type] = qscale[i];
}
assert(filter_size%2==1);
projects / ffmpeg / blobdiff