From f61272f0efd80da437570aad2c40e00f9d3f4fe6 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Sat, 12 Jan 2013 06:16:53 +0100 Subject: ratecontrol: K&R cosmetic formatting Signed-off-by: Diego Biurrun --- libavcodec/ratecontrol.c | 1077 +++++++++++++++++++++++++--------------------- 1 file changed, 591 insertions(+), 486 deletions(-) (limited to 'libavcodec/ratecontrol.c') diff --git a/libavcodec/ratecontrol.c b/libavcodec/ratecontrol.c index e0b6e9bf0b..bfa47a9782 100644 --- a/libavcodec/ratecontrol.c +++ b/libavcodec/ratecontrol.c @@ -40,34 +40,51 @@ #endif static int init_pass2(MpegEncContext *s); -static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_factor, int frame_num); +static double get_qscale(MpegEncContext *s, RateControlEntry *rce, + double rate_factor, int frame_num); -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->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); +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->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){ - if(qp<=0.0){ +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; + 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){ +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; + 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; + RateControlContext *rcc = &s->rc_context; int i, res; - static const char * const const_names[]={ + static const char * const const_names[] = { "PI", "E", "iTex", @@ -83,10 +100,12 @@ int ff_rate_control_init(MpegEncContext *s) "isB", "avgQP", "qComp", -/* "lastIQP", +#if 0 + "lastIQP", "lastPQP", "lastBQP", - "nextNonBQP",*/ + "nextNonBQP", +#endif "avgIITex", "avgPITex", "avgPPTex", @@ -94,156 +113,172 @@ int ff_rate_control_init(MpegEncContext *s) "avgTex", NULL }; - static double (* const func1[])(void *, double)={ + static double (* const func1[])(void *, double) = { (void *)bits2qp, (void *)qp2bits, NULL }; - static const char * const func1_names[]={ + static const char * const func1_names[] = { "bits2qp", "qp2bits", NULL }; emms_c(); - 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); + 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++){ - rcc->pred[i].coeff= FF_QP2LAMBDA * 7.0; - rcc->pred[i].count= 1.0; - - rcc->pred[i].decay= 0.4; - rcc->i_cplx_sum [i]= - rcc->p_cplx_sum [i]= - rcc->mv_bits_sum[i]= - rcc->qscale_sum [i]= - rcc->frame_count[i]= 1; // 1 is better because of 1/0 and such - rcc->last_qscale_for[i]=FF_QP2LAMBDA * 5; + for (i = 0; i < 5; i++) { + rcc->pred[i].coeff = FF_QP2LAMBDA * 7.0; + rcc->pred[i].count = 1.0; + rcc->pred[i].decay = 0.4; + + rcc->i_cplx_sum [i] = + rcc->p_cplx_sum [i] = + rcc->mv_bits_sum[i] = + rcc->qscale_sum [i] = + rcc->frame_count[i] = 1; // 1 is better because of 1/0 and such + + rcc->last_qscale_for[i] = FF_QP2LAMBDA * 5; } - rcc->buffer_index= s->avctx->rc_initial_buffer_occupancy; + rcc->buffer_index = s->avctx->rc_initial_buffer_occupancy; - if(s->flags&CODEC_FLAG_PASS2){ + if (s->flags & CODEC_FLAG_PASS2) { int i; char *p; /* find number of pics */ - p= s->avctx->stats_in; - for(i=-1; p; i++){ - p= strchr(p+1, ';'); - } - i+= s->max_b_frames; - if(i<=0 || i>=INT_MAX / sizeof(RateControlEntry)) + p = s->avctx->stats_in; + for (i = -1; p; i++) + p = strchr(p + 1, ';'); + i += s->max_b_frames; + if (i <= 0 || i >= INT_MAX / sizeof(RateControlEntry)) return -1; - rcc->entry = av_mallocz(i*sizeof(RateControlEntry)); - rcc->num_entries= i; - - /* init all to skipped p frames (with b frames we might have a not encoded frame at the end FIXME) */ - for(i=0; inum_entries; i++){ - RateControlEntry *rce= &rcc->entry[i]; - 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; + rcc->entry = av_mallocz(i * sizeof(RateControlEntry)); + rcc->num_entries = 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 = 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; } /* read stats */ - p= s->avctx->stats_in; - for(i=0; inum_entries - s->max_b_frames; i++){ + p = s->avctx->stats_in; + for (i = 0; i < rcc->num_entries - s->max_b_frames; i++) { RateControlEntry *rce; int picture_number; int e; char *next; - next= strchr(p, ';'); - if(next){ - (*next)=0; //sscanf in unbelievably slow on looong strings //FIXME copy / do not write + next = strchr(p, ';'); + if (next) { + (*next) = 0; // sscanf in unbelievably slow on looong strings // FIXME copy / do not write next++; } - e= sscanf(p, " in:%d ", &picture_number); + e = sscanf(p, " in:%d ", &picture_number); assert(picture_number >= 0); assert(picture_number < rcc->num_entries); - rce= &rcc->entry[picture_number]; - - e+=sscanf(p, " in:%*d out:%*d type:%d q:%f itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d skipcount:%d hbits:%d", - &rce->pict_type, &rce->qscale, &rce->i_tex_bits, &rce->p_tex_bits, &rce->mv_bits, &rce->misc_bits, - &rce->f_code, &rce->b_code, &rce->mc_mb_var_sum, &rce->mb_var_sum, &rce->i_count, &rce->skip_count, &rce->header_bits); - if(e!=14){ - av_log(s->avctx, AV_LOG_ERROR, "statistics are damaged at line %d, parser out=%d\n", i, e); + rce = &rcc->entry[picture_number]; + + e += sscanf(p, " in:%*d out:%*d type:%d q:%f itex:%d ptex:%d mv:%d misc:%d fcode:%d bcode:%d mc-var:%d var:%d icount:%d skipcount:%d hbits:%d", + &rce->pict_type, &rce->qscale, &rce->i_tex_bits, &rce->p_tex_bits, + &rce->mv_bits, &rce->misc_bits, + &rce->f_code, &rce->b_code, + &rce->mc_mb_var_sum, &rce->mb_var_sum, + &rce->i_count, &rce->skip_count, &rce->header_bits); + if (e != 14) { + av_log(s->avctx, AV_LOG_ERROR, + "statistics are damaged at line %d, parser out=%d\n", + i, e); return -1; } - p= next; + p = next; } - if(init_pass2(s) < 0) return -1; + if (init_pass2(s) < 0) + return -1; - //FIXME maybe move to end - if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) { + // FIXME maybe move to end + if ((s->flags & CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) { #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"); + av_log(s->avctx, AV_LOG_ERROR, + "Xvid ratecontrol requires libavcodec compiled with Xvid support.\n"); return -1; #endif } } - if(!(s->flags&CODEC_FLAG_PASS2)){ + if (!(s->flags & CODEC_FLAG_PASS2)) { + rcc->short_term_qsum = 0.001; + rcc->short_term_qcount = 0.001; - rcc->short_term_qsum=0.001; - rcc->short_term_qcount=0.001; + rcc->pass1_rc_eq_output_sum = 0.001; + rcc->pass1_wanted_bits = 0.001; - rcc->pass1_rc_eq_output_sum= 0.001; - rcc->pass1_wanted_bits=0.001; - - if(s->avctx->qblur > 1.0){ + if (s->avctx->qblur > 1.0) { av_log(s->avctx, AV_LOG_ERROR, "qblur too large\n"); return -1; } /* init stuff with the user specified complexity */ - if(s->avctx->rc_initial_cplx){ - for(i=0; i<60*30; i++){ - double bits= s->avctx->rc_initial_cplx * (i/10000.0 + 1.0)*s->mb_num; + if (s->avctx->rc_initial_cplx) { + for (i = 0; i < 60 * 30; i++) { + double bits = s->avctx->rc_initial_cplx * (i / 10000.0 + 1.0) * s->mb_num; RateControlEntry rce; - 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.mb_var_sum = s->mb_num; - rce.qscale = FF_QP2LAMBDA * 2; - rce.f_code = 2; - rce.b_code = 1; - rce.misc_bits= 1; - - if(s->pict_type== AV_PICTURE_TYPE_I){ - rce.i_count = s->mb_num; - rce.i_tex_bits= bits; - rce.p_tex_bits= 0; - rce.mv_bits= 0; - }else{ - rce.i_count = 0; //FIXME we do know this approx - rce.i_tex_bits= 0; - rce.p_tex_bits= bits*0.9; - rce.mv_bits= bits*0.1; + 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.mb_var_sum = s->mb_num; + + rce.qscale = FF_QP2LAMBDA * 2; + rce.f_code = 2; + rce.b_code = 1; + rce.misc_bits = 1; + + if (s->pict_type == AV_PICTURE_TYPE_I) { + rce.i_count = s->mb_num; + rce.i_tex_bits = bits; + rce.p_tex_bits = 0; + rce.mv_bits = 0; + } else { + rce.i_count = 0; // FIXME we do know this approx + rce.i_tex_bits = 0; + rce.p_tex_bits = bits * 0.9; + rce.mv_bits = bits * 0.1; } - rcc->i_cplx_sum [rce.pict_type] += rce.i_tex_bits*rce.qscale; - rcc->p_cplx_sum [rce.pict_type] += rce.p_tex_bits*rce.qscale; + rcc->i_cplx_sum[rce.pict_type] += rce.i_tex_bits * rce.qscale; + rcc->p_cplx_sum[rce.pict_type] += rce.p_tex_bits * rce.qscale; rcc->mv_bits_sum[rce.pict_type] += rce.mv_bits; - rcc->frame_count[rce.pict_type] ++; + rcc->frame_count[rce.pict_type]++; + + 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 + // FIXME misbehaves a little for variable fps + rcc->pass1_wanted_bits += s->bit_rate / (1 / av_q2d(s->avctx->time_base)); } } - } return 0; @@ -251,47 +286,49 @@ int ff_rate_control_init(MpegEncContext *s) void ff_rate_control_uninit(MpegEncContext *s) { - RateControlContext *rcc= &s->rc_context; + RateControlContext *rcc = &s->rc_context; emms_c(); av_expr_free(rcc->rc_eq_eval); av_freep(&rcc->entry); #if CONFIG_LIBXVID - if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) + if ((s->flags & CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) ff_xvid_rate_control_uninit(s); #endif } -int ff_vbv_update(MpegEncContext *s, int frame_size){ - RateControlContext *rcc= &s->rc_context; - 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; +int ff_vbv_update(MpegEncContext *s, int frame_size) +{ + RateControlContext *rcc = &s->rc_context; + 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; av_dlog(s, "%d %f %d %f %f\n", buffer_size, rcc->buffer_index, frame_size, min_rate, max_rate); - if(buffer_size){ + + if (buffer_size) { int left; - rcc->buffer_index-= frame_size; - if(rcc->buffer_index < 0){ + rcc->buffer_index -= frame_size; + if (rcc->buffer_index < 0) { av_log(s->avctx, AV_LOG_ERROR, "rc buffer underflow\n"); - rcc->buffer_index= 0; + rcc->buffer_index = 0; } - left= buffer_size - rcc->buffer_index - 1; + left = buffer_size - rcc->buffer_index - 1; rcc->buffer_index += av_clip(left, min_rate, max_rate); - if(rcc->buffer_index > buffer_size){ - int stuffing= ceil((rcc->buffer_index - buffer_size)/8); + if (rcc->buffer_index > buffer_size) { + int stuffing = ceil((rcc->buffer_index - buffer_size) / 8); - if(stuffing < 4 && s->codec_id == AV_CODEC_ID_MPEG4) - stuffing=4; - rcc->buffer_index -= 8*stuffing; + if (stuffing < 4 && s->codec_id == AV_CODEC_ID_MPEG4) + stuffing = 4; + rcc->buffer_index -= 8 * stuffing; - if(s->avctx->debug & FF_DEBUG_RC) + if (s->avctx->debug & FF_DEBUG_RC) av_log(s->avctx, AV_LOG_DEBUG, "stuffing %d bytes\n", stuffing); return stuffing; @@ -303,34 +340,38 @@ int ff_vbv_update(MpegEncContext *s, int frame_size){ /** * 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; - AVCodecContext *a= s->avctx; +static double get_qscale(MpegEncContext *s, RateControlEntry *rce, + double rate_factor, int frame_num) +{ + RateControlContext *rcc = &s->rc_context; + AVCodecContext *a = s->avctx; + const int pict_type = rce->new_pict_type; + const double mb_num = s->mb_num; double q, bits; - const int pict_type= rce->new_pict_type; - const double mb_num= s->mb_num; int i; - double const_values[]={ + double const_values[] = { M_PI, M_E, - rce->i_tex_bits*rce->qscale, - 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 == 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->i_tex_bits * rce->qscale, + 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 == 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 == 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[AV_PICTURE_TYPE_I], +#if 0 + 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->next_non_b_qscale, +#endif 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], @@ -345,61 +386,71 @@ static double get_qscale(MpegEncContext *s, RateControlEntry *rce, double rate_f return -1; } - rcc->pass1_rc_eq_output_sum+= bits; - bits*=rate_factor; - if(bits<0.0) bits=0.0; - bits+= 1.0; //avoid 1/0 issues + rcc->pass1_rc_eq_output_sum += bits; + bits *= rate_factor; + if (bits < 0.0) + bits = 0.0; + bits += 1.0; // avoid 1/0 issues /* user override */ - for(i=0; iavctx->rc_override_count; i++){ - RcOverride *rco= s->avctx->rc_override; - if(rco[i].start_frame > frame_num) continue; - if(rco[i].end_frame < frame_num) continue; - - if(rco[i].qscale) - bits= qp2bits(rce, rco[i].qscale); //FIXME move at end to really force it? + for (i = 0; i < s->avctx->rc_override_count; i++) { + RcOverride *rco = s->avctx->rc_override; + if (rco[i].start_frame > frame_num) + continue; + if (rco[i].end_frame < frame_num) + continue; + + if (rco[i].qscale) + bits = qp2bits(rce, rco[i].qscale); // FIXME move at end to really force it? else - bits*= rco[i].quality_factor; + bits *= rco[i].quality_factor; } - q= bits2qp(rce, bits); + q = bits2qp(rce, bits); /* I/B difference */ - 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==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; + 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 == 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; return q; } -static double get_diff_limited_q(MpegEncContext *s, RateControlEntry *rce, double q){ - 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[AV_PICTURE_TYPE_P]; - const double last_non_b_q= rcc->last_qscale_for[rcc->last_non_b_pict_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==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; +static double get_diff_limited_q(MpegEncContext *s, RateControlEntry *rce, double q) +{ + 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[AV_PICTURE_TYPE_P]; + const double last_non_b_q = rcc->last_qscale_for[rcc->last_non_b_pict_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 == 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!=AV_PICTURE_TYPE_I){ - double last_q= rcc->last_qscale_for[pict_type]; - const int maxdiff= FF_QP2LAMBDA * a->max_qdiff; - - if (q > last_q + maxdiff) q= last_q + maxdiff; - else if(q < last_q - maxdiff) q= last_q - maxdiff; + 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; + + if (q > last_q + maxdiff) + q = last_q + maxdiff; + else if (q < last_q - maxdiff) + q = last_q - maxdiff; } - rcc->last_qscale_for[pict_type]= q; //Note we cannot do that after blurring + rcc->last_qscale_for[pict_type] = q; // Note we cannot do that after blurring - if(pict_type!=AV_PICTURE_TYPE_B) - rcc->last_non_b_pict_type= pict_type; + if (pict_type != AV_PICTURE_TYPE_B) + rcc->last_non_b_pict_type = pict_type; return q; } @@ -407,239 +458,269 @@ static double get_diff_limited_q(MpegEncContext *s, RateControlEntry *rce, doubl /** * 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; - int qmax= s->avctx->lmax; +static void get_qminmax(int *qmin_ret, int *qmax_ret, MpegEncContext *s, int pict_type) +{ + int qmin = s->avctx->lmin; + int qmax = s->avctx->lmax; assert(qmin <= qmax); - 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==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); + switch (pict_type) { + case 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); + break; + case 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); + break; } - qmin= av_clip(qmin, 1, FF_LAMBDA_MAX); - qmax= av_clip(qmax, 1, FF_LAMBDA_MAX); + qmin = av_clip(qmin, 1, FF_LAMBDA_MAX); + qmax = av_clip(qmax, 1, FF_LAMBDA_MAX); - if(qmaxrc_context; +static double modify_qscale(MpegEncContext *s, RateControlEntry *rce, + double q, int frame_num) +{ + RateControlContext *rcc = &s->rc_context; + const double buffer_size = s->avctx->rc_buffer_size; + 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 int pict_type = rce->new_pict_type; int qmin, qmax; - 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); - const double min_rate= s->avctx->rc_min_rate / fps; - const double max_rate= s->avctx->rc_max_rate / fps; get_qminmax(&qmin, &qmax, s, pict_type); /* modulation */ - 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; + 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; /* buffer overflow/underflow protection */ - if(buffer_size){ - double expected_size= rcc->buffer_index; + if (buffer_size) { + double expected_size = rcc->buffer_index; double q_limit; - if(min_rate){ - double d= 2*(buffer_size - expected_size)/buffer_size; - if(d>1.0) d=1.0; - 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) * 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); - } - q= q_limit; + if (min_rate) { + double d = 2 * (buffer_size - expected_size) / buffer_size; + if (d > 1.0) + d = 1.0; + 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) * + 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); + q = q_limit; } } - if(max_rate){ - double d= 2*expected_size/buffer_size; - if(d>1.0) d=1.0; - 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 * 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); - } - q= q_limit; + if (max_rate) { + double d = 2 * expected_size / buffer_size; + if (d > 1.0) + d = 1.0; + 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 * + 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); + q = q_limit; } } } av_dlog(s, "q:%f max:%f min:%f size:%f index:%f agr:%f\n", q, max_rate, min_rate, buffer_size, rcc->buffer_index, s->avctx->rc_buffer_aggressivity); - if(s->avctx->rc_qsquish==0.0 || qmin==qmax){ - if (qqmax) q=qmax; - }else{ - double min2= log(qmin); - double max2= log(qmax); - - q= log(q); - q= (q - min2)/(max2-min2) - 0.5; - q*= -4.0; - q= 1.0/(1.0 + exp(q)); - q= q*(max2-min2) + min2; - - q= exp(q); + if (s->avctx->rc_qsquish == 0.0 || qmin == qmax) { + if (q < qmin) + q = qmin; + else if (q > qmax) + q = qmax; + } else { + double min2 = log(qmin); + double max2 = log(qmax); + + q = log(q); + q = (q - min2) / (max2 - min2) - 0.5; + q *= -4.0; + q = 1.0 / (1.0 + exp(q)); + q = q * (max2 - min2) + min2; + + q = exp(q); } return q; } -//---------------------------------- +// ---------------------------------- // 1 Pass Code static double predict_size(Predictor *p, double q, double var) { - return p->coeff*var / (q*p->count); + return p->coeff * var / (q * p->count); } static void update_predictor(Predictor *p, double q, double var, double size) { - double new_coeff= size*q / (var + 1); - if(var<10) return; + double new_coeff = size * q / (var + 1); + if (var < 10) + return; - p->count*= p->decay; - p->coeff*= p->decay; + p->count *= p->decay; + p->coeff *= p->decay; p->count++; - p->coeff+= new_coeff; + p->coeff += new_coeff; } -static void adaptive_quantization(MpegEncContext *s, double q){ +static void adaptive_quantization(MpegEncContext *s, double q) +{ int i; - const float lumi_masking= s->avctx->lumi_masking / (128.0*128.0); - const float dark_masking= s->avctx->dark_masking / (128.0*128.0); - const float temp_cplx_masking= s->avctx->temporal_cplx_masking; + const float lumi_masking = s->avctx->lumi_masking / (128.0 * 128.0); + const float dark_masking = s->avctx->dark_masking / (128.0 * 128.0); + 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->cplx_tab; - float *bits_tab = s->bits_tab; - 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; imb_num; i++){ - const int mb_xy= s->mb_index2xy[i]; - float temp_cplx= sqrt(pic->mc_mb_var[mb_xy]); //FIXME merge in pow() - float spat_cplx= sqrt(pic->mb_var[mb_xy]); - const int lumi= pic->mb_mean[mb_xy]; + 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->cplx_tab; + float *bits_tab = s->bits_tab; + 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 temp_cplx = sqrt(pic->mc_mb_var[mb_xy]); // FIXME merge in pow() + 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(spat_cplx < 4) spat_cplx= 4; //FIXME finetune - if(temp_cplx < 4) temp_cplx= 4; //FIXME finetune - - if((s->mb_type[mb_xy]&CANDIDATE_MB_TYPE_INTRA)){//FIXME hq mode - cplx= spat_cplx; - factor= 1.0 + p_masking; - }else{ - cplx= temp_cplx; - factor= pow(temp_cplx, - temp_cplx_masking); + if (spat_cplx < 4) + spat_cplx = 4; // FIXME finetune + if (temp_cplx < 4) + temp_cplx = 4; // FIXME finetune + + if ((s->mb_type[mb_xy] & CANDIDATE_MB_TYPE_INTRA)) { // FIXME hq mode + cplx = spat_cplx; + factor = 1.0 + p_masking; + } else { + cplx = temp_cplx; + factor = pow(temp_cplx, -temp_cplx_masking); } - factor*=pow(spat_cplx, - spatial_cplx_masking); + factor *= pow(spat_cplx, -spatial_cplx_masking); - if(lumi>127) - factor*= (1.0 - (lumi-128)*(lumi-128)*lumi_masking); + if (lumi > 127) + 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); + 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)); + 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; + factor *= 1.0 - border_masking * mb_factor; - if(factor<0.00001) factor= 0.00001; + if (factor < 0.00001) + factor = 0.00001; - bits= cplx*factor; - cplx_sum+= cplx; - bits_sum+= bits; - cplx_tab[i]= cplx; - bits_tab[i]= bits; + bits = cplx * factor; + cplx_sum += cplx; + bits_sum += bits; + cplx_tab[i] = cplx; + bits_tab[i] = bits; } /* handle qmin/qmax clipping */ - if(s->flags&CODEC_FLAG_NORMALIZE_AQP){ - float factor= bits_sum/cplx_sum; - for(i=0; imb_num; i++){ - float newq= q*cplx_tab[i]/bits_tab[i]; - newq*= factor; + 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 *= factor; - if (newq > qmax){ + if (newq > qmax) { bits_sum -= bits_tab[i]; - cplx_sum -= cplx_tab[i]*q/qmax; - } - else if(newq < qmin){ + cplx_sum -= cplx_tab[i] * q / qmax; + } else if (newq < qmin) { bits_sum -= bits_tab[i]; - cplx_sum -= cplx_tab[i]*q/qmin; + 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; + if (bits_sum < 0.001) + bits_sum = 0.001; + if (cplx_sum < 0.001) + cplx_sum = 0.001; } - for(i=0; imb_num; i++){ - const int mb_xy= s->mb_index2xy[i]; - float newq= q*cplx_tab[i]/bits_tab[i]; + 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; - if(s->flags&CODEC_FLAG_NORMALIZE_AQP){ - newq*= bits_sum/cplx_sum; + if (s->flags & CODEC_FLAG_NORMALIZE_AQP) { + newq *= bits_sum / cplx_sum; } - intq= (int)(newq + 0.5); + intq = (int)(newq + 0.5); - if (intq > qmax) intq= qmax; - else if(intq < qmin) intq= qmin; - s->lambda_table[mb_xy]= intq; + if (intq > qmax) + intq = qmax; + else if (intq < qmin) + intq = qmin; + s->lambda_table[mb_xy] = intq; } } -void ff_get_2pass_fcode(MpegEncContext *s){ - RateControlContext *rcc= &s->rc_context; - int picture_number= s->picture_number; - RateControlEntry *rce; +void ff_get_2pass_fcode(MpegEncContext *s) +{ + RateControlContext *rcc = &s->rc_context; + RateControlEntry *rce = &rcc->entry[s->picture_number]; - rce= &rcc->entry[picture_number]; - s->f_code= rce->f_code; - s->b_code= rce->b_code; + s->f_code = rce->f_code; + s->b_code = rce->b_code; } -//FIXME rd or at least approx for dquant +// FIXME rd or at least approx for dquant float ff_rate_estimate_qscale(MpegEncContext *s, int dry_run) { @@ -649,249 +730,272 @@ float ff_rate_estimate_qscale(MpegEncContext *s, int dry_run) double diff; double short_term_q; double fps; - int picture_number= s->picture_number; + int picture_number = s->picture_number; int64_t wanted_bits; - RateControlContext *rcc= &s->rc_context; - AVCodecContext *a= s->avctx; + RateControlContext *rcc = &s->rc_context; + AVCodecContext *a = s->avctx; RateControlEntry local_rce, *rce; double bits; double rate_factor; int var; - const int pict_type= s->pict_type; - Picture * const pic= &s->current_picture; + const int pict_type = s->pict_type; + Picture * const pic = &s->current_picture; emms_c(); #if CONFIG_LIBXVID - if((s->flags&CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) + if ((s->flags & CODEC_FLAG_PASS2) && + s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) return ff_xvid_rate_estimate_qscale(s, dry_run); #endif get_qminmax(&qmin, &qmax, s, pict_type); - fps= 1/av_q2d(s->avctx->time_base); - /* update predictors */ - if(picture_number>2 && !dry_run){ - 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); + fps = 1 / av_q2d(s->avctx->time_base); + /* update predictors */ + if (picture_number > 2 && !dry_run) { + 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); } - if(s->flags&CODEC_FLAG_PASS2){ - assert(picture_number>=0); - assert(picture_numbernum_entries); - rce= &rcc->entry[picture_number]; - wanted_bits= rce->expected_bits; - }else{ + if (s->flags & CODEC_FLAG_PASS2) { + assert(picture_number >= 0); + assert(picture_number < rcc->num_entries); + rce = &rcc->entry[picture_number]; + wanted_bits = rce->expected_bits; + } else { Picture *dts_pic; - rce= &local_rce; + rce = &local_rce; - //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 == AV_PICTURE_TYPE_B || s->low_delay) - dts_pic= s->current_picture_ptr; + /* FIXME add a dts field to AVFrame and ensure it is set and use it + * here instead of reordering but the reordering is simpler for now + * until H.264 B-pyramid must be handled. */ + if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) + dts_pic = s->current_picture_ptr; else - dts_pic= s->last_picture_ptr; + dts_pic = s->last_picture_ptr; if (!dts_pic || dts_pic->f.pts == AV_NOPTS_VALUE) - wanted_bits= (uint64_t)(s->bit_rate*(double)picture_number/fps); + wanted_bits = (uint64_t)(s->bit_rate * (double)picture_number / fps); else - wanted_bits = (uint64_t)(s->bit_rate*(double)dts_pic->f.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; + 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 == AV_PICTURE_TYPE_I ? 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!=AV_PICTURE_TYPE_I) + if (s->flags & CODEC_FLAG_PASS2) { + if (pict_type != AV_PICTURE_TYPE_I) assert(pict_type == rce->new_pict_type); - q= rce->new_qscale / br_compensation; + q = rce->new_qscale / br_compensation; av_dlog(s, "%f %f %f last:%d var:%d type:%d//\n", q, rce->new_qscale, br_compensation, s->frame_bits, var, pict_type); - }else{ - rce->pict_type= - rce->new_pict_type= pict_type; - rce->mc_mb_var_sum= pic->mc_mb_var_sum; - rce->mb_var_sum = pic-> mb_var_sum; - rce->qscale = FF_QP2LAMBDA * 2; - rce->f_code = s->f_code; - rce->b_code = s->b_code; - rce->misc_bits= 1; - - bits= predict_size(&rcc->pred[pict_type], rce->qscale, sqrt(var)); - if(pict_type== AV_PICTURE_TYPE_I){ - rce->i_count = s->mb_num; - rce->i_tex_bits= bits; - rce->p_tex_bits= 0; - rce->mv_bits= 0; - }else{ - rce->i_count = 0; //FIXME we do know this approx - rce->i_tex_bits= 0; - rce->p_tex_bits= bits*0.9; - - rce->mv_bits= bits*0.1; + } else { + rce->pict_type = + rce->new_pict_type = pict_type; + rce->mc_mb_var_sum = pic->mc_mb_var_sum; + rce->mb_var_sum = pic->mb_var_sum; + rce->qscale = FF_QP2LAMBDA * 2; + rce->f_code = s->f_code; + rce->b_code = s->b_code; + rce->misc_bits = 1; + + bits = predict_size(&rcc->pred[pict_type], rce->qscale, sqrt(var)); + if (pict_type == AV_PICTURE_TYPE_I) { + rce->i_count = s->mb_num; + rce->i_tex_bits = bits; + rce->p_tex_bits = 0; + rce->mv_bits = 0; + } else { + rce->i_count = 0; // FIXME we do know this approx + rce->i_tex_bits = 0; + rce->p_tex_bits = bits * 0.9; + rce->mv_bits = bits * 0.1; } - rcc->i_cplx_sum [pict_type] += rce->i_tex_bits*rce->qscale; - rcc->p_cplx_sum [pict_type] += rce->p_tex_bits*rce->qscale; + rcc->i_cplx_sum[pict_type] += rce->i_tex_bits * rce->qscale; + rcc->p_cplx_sum[pict_type] += rce->p_tex_bits * rce->qscale; rcc->mv_bits_sum[pict_type] += rce->mv_bits; - rcc->frame_count[pict_type] ++; + rcc->frame_count[pict_type]++; - bits= rce->i_tex_bits + rce->p_tex_bits; - rate_factor= rcc->pass1_wanted_bits/rcc->pass1_rc_eq_output_sum * br_compensation; + bits = rce->i_tex_bits + rce->p_tex_bits; + rate_factor = rcc->pass1_wanted_bits / + rcc->pass1_rc_eq_output_sum * br_compensation; - q= get_qscale(s, rce, rate_factor, picture_number); + q = get_qscale(s, rce, rate_factor, picture_number); if (q < 0) return -1; - assert(q>0.0); - q= get_diff_limited_q(s, rce, q); - assert(q>0.0); + assert(q > 0.0); + q = get_diff_limited_q(s, rce, q); + assert(q > 0.0); - 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; + // FIXME type dependent blur like in 2-pass + if (pict_type == AV_PICTURE_TYPE_P || s->intra_only) { + rcc->short_term_qsum *= a->qblur; + rcc->short_term_qcount *= a->qblur; - rcc->short_term_qsum+= q; + rcc->short_term_qsum += q; rcc->short_term_qcount++; - q= short_term_q= rcc->short_term_qsum/rcc->short_term_qcount; + q = short_term_q = rcc->short_term_qsum / rcc->short_term_qcount; } - assert(q>0.0); + assert(q > 0.0); - q= modify_qscale(s, rce, q, picture_number); + q = modify_qscale(s, rce, q, picture_number); - rcc->pass1_wanted_bits+= s->bit_rate/fps; + rcc->pass1_wanted_bits += s->bit_rate / fps; - assert(q>0.0); + assert(q > 0.0); } - 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_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 - ); + 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_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); } - if (qqmax) q=qmax; + if (q < qmin) + q = qmin; + else if (q > qmax) + q = qmax; - if(s->adaptive_quant) + if (s->adaptive_quant) adaptive_quantization(s, q); else - q= (int)(q + 0.5); + q = (int)(q + 0.5); - if(!dry_run){ - rcc->last_qscale= q; - rcc->last_mc_mb_var_sum= pic->mc_mb_var_sum; - rcc->last_mb_var_sum= pic->mb_var_sum; + if (!dry_run) { + rcc->last_qscale = q; + rcc->last_mc_mb_var_sum = pic->mc_mb_var_sum; + rcc->last_mb_var_sum = pic->mb_var_sum; } return q; } -//---------------------------------------------- +// ---------------------------------------------- // 2-Pass code static int init_pass2(MpegEncContext *s) { - RateControlContext *rcc= &s->rc_context; - AVCodecContext *a= s->avctx; + RateControlContext *rcc = &s->rc_context; + AVCodecContext *a = s->avctx; int i, toobig; - double fps= 1/av_q2d(s->avctx->time_base); - double complexity[5]={0,0,0,0,0}; // approximate bits at quant=1 - uint64_t const_bits[5]={0,0,0,0,0}; // quantizer independent bits + double fps = 1 / av_q2d(s->avctx->time_base); + double complexity[5] = { 0 }; // approximate bits at quant=1 + uint64_t const_bits[5] = { 0 }; // quantizer independent bits uint64_t all_const_bits; - uint64_t all_available_bits= (uint64_t)(s->bit_rate*(double)rcc->num_entries/fps); - double rate_factor=0; + 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; - const int filter_size= (int)(a->qblur*4) | 1; + const int filter_size = (int)(a->qblur * 4) | 1; double expected_bits; double *qscale, *blurred_qscale, qscale_sum; /* find complexity & const_bits & decide the pict_types */ - for(i=0; inum_entries; i++){ - RateControlEntry *rce= &rcc->entry[i]; + for (i = 0; i < rcc->num_entries; i++) { + RateControlEntry *rce = &rcc->entry[i]; - rce->new_pict_type= rce->pict_type; - rcc->i_cplx_sum [rce->pict_type] += rce->i_tex_bits*rce->qscale; - rcc->p_cplx_sum [rce->pict_type] += rce->p_tex_bits*rce->qscale; + rce->new_pict_type = rce->pict_type; + rcc->i_cplx_sum[rce->pict_type] += rce->i_tex_bits * rce->qscale; + rcc->p_cplx_sum[rce->pict_type] += rce->p_tex_bits * rce->qscale; rcc->mv_bits_sum[rce->pict_type] += rce->mv_bits; - rcc->frame_count[rce->pict_type] ++; + rcc->frame_count[rce->pict_type]++; - 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; + 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[AV_PICTURE_TYPE_I] + const_bits[AV_PICTURE_TYPE_P] + const_bits[AV_PICTURE_TYPE_B]; - if(all_available_bits < all_const_bits){ + 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"); return -1; } - qscale= av_malloc(sizeof(double)*rcc->num_entries); - blurred_qscale= av_malloc(sizeof(double)*rcc->num_entries); + qscale = av_malloc(sizeof(double) * rcc->num_entries); + blurred_qscale = av_malloc(sizeof(double) * rcc->num_entries); toobig = 0; - for(step=256*256; step>0.0000001; step*=0.5){ - expected_bits=0; - rate_factor+= step; + for (step = 256 * 256; step > 0.0000001; step *= 0.5) { + expected_bits = 0; + rate_factor += step; - rcc->buffer_index= s->avctx->rc_buffer_size/2; + rcc->buffer_index = s->avctx->rc_buffer_size / 2; /* find qscale */ - for(i=0; inum_entries; i++){ - RateControlEntry *rce= &rcc->entry[i]; - qscale[i]= get_qscale(s, &rcc->entry[i], rate_factor, i); + 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); + assert(filter_size % 2 == 1); /* fixed I/B QP relative to P mode */ - for(i=rcc->num_entries-1; i>=0; i--){ - RateControlEntry *rce= &rcc->entry[i]; + for (i = rcc->num_entries - 1; i >= 0; i--) { + RateControlEntry *rce = &rcc->entry[i]; - qscale[i]= get_diff_limited_q(s, rce, qscale[i]); + qscale[i] = get_diff_limited_q(s, rce, qscale[i]); } /* smooth curve */ - for(i=0; inum_entries; i++){ - RateControlEntry *rce= &rcc->entry[i]; - const int pict_type= rce->new_pict_type; + for (i = 0; i < rcc->num_entries; i++) { + RateControlEntry *rce = &rcc->entry[i]; + const int pict_type = rce->new_pict_type; int j; - double q=0.0, sum=0.0; - - for(j=0; jqblur==0 ? 1.0 : exp(-d*d/(a->qblur * a->qblur)); - - if(index < 0 || index >= rcc->num_entries) continue; - if(pict_type != rcc->entry[index].new_pict_type) continue; - q+= qscale[index] * coeff; - sum+= coeff; + double q = 0.0, sum = 0.0; + + for (j = 0; j < filter_size; j++) { + int index = i + j - filter_size / 2; + double d = index - i; + double coeff = a->qblur == 0 ? 1.0 : exp(-d * d / (a->qblur * a->qblur)); + + if (index < 0 || index >= rcc->num_entries) + continue; + if (pict_type != rcc->entry[index].new_pict_type) + continue; + q += qscale[index] * coeff; + sum += coeff; } - blurred_qscale[i]= q/sum; + blurred_qscale[i] = q / sum; } /* find expected bits */ - for(i=0; inum_entries; i++){ - RateControlEntry *rce= &rcc->entry[i]; + for (i = 0; i < rcc->num_entries; i++) { + RateControlEntry *rce = &rcc->entry[i]; double bits; - rce->new_qscale= modify_qscale(s, rce, blurred_qscale[i], i); - bits= qp2bits(rce, rce->new_qscale) + rce->mv_bits + rce->misc_bits; - bits += 8*ff_vbv_update(s, bits); - rce->expected_bits= expected_bits; - expected_bits += bits; + rce->new_qscale = modify_qscale(s, rce, blurred_qscale[i], i); + + bits = qp2bits(rce, rce->new_qscale) + rce->mv_bits + rce->misc_bits; + bits += 8 * ff_vbv_update(s, bits); + + rce->expected_bits = expected_bits; + expected_bits += bits; } av_dlog(s->avctx, "expected_bits: %f all_available_bits: %d rate_factor: %f\n", expected_bits, (int)all_available_bits, rate_factor); - if(expected_bits > all_available_bits) { - rate_factor-= step; + if (expected_bits > all_available_bits) { + rate_factor -= step; ++toobig; } } @@ -900,33 +1004,34 @@ static int init_pass2(MpegEncContext *s) /* check bitrate calculations and print info */ qscale_sum = 0.0; - for(i=0; inum_entries; i++){ + for (i = 0; i < rcc->num_entries; i++) { av_dlog(s, "[lavc rc] entry[%d].new_qscale = %.3f qp = %.3f\n", i, rcc->entry[i].new_qscale, rcc->entry[i].new_qscale / FF_QP2LAMBDA); - qscale_sum += av_clip(rcc->entry[i].new_qscale / FF_QP2LAMBDA, s->avctx->qmin, s->avctx->qmax); + qscale_sum += av_clip(rcc->entry[i].new_qscale / FF_QP2LAMBDA, + s->avctx->qmin, s->avctx->qmax); } assert(toobig <= 40); av_log(s->avctx, AV_LOG_DEBUG, - "[lavc rc] requested bitrate: %d bps expected bitrate: %d bps\n", - s->bit_rate, - (int)(expected_bits / ((double)all_available_bits/s->bit_rate))); + "[lavc rc] requested bitrate: %d bps expected bitrate: %d bps\n", + s->bit_rate, + (int)(expected_bits / ((double)all_available_bits / s->bit_rate))); av_log(s->avctx, AV_LOG_DEBUG, - "[lavc rc] estimated target average qp: %.3f\n", - (float)qscale_sum / rcc->num_entries); + "[lavc rc] estimated target average qp: %.3f\n", + (float)qscale_sum / rcc->num_entries); if (toobig == 0) { av_log(s->avctx, AV_LOG_INFO, - "[lavc rc] Using all of requested bitrate is not " - "necessary for this video with these parameters.\n"); + "[lavc rc] Using all of requested bitrate is not " + "necessary for this video with these parameters.\n"); } else if (toobig == 40) { av_log(s->avctx, AV_LOG_ERROR, - "[lavc rc] Error: bitrate too low for this video " - "with these parameters.\n"); + "[lavc rc] Error: bitrate too low for this video " + "with these parameters.\n"); return -1; - } else if (fabs(expected_bits/all_available_bits - 1.0) > 0.01) { + } else if (fabs(expected_bits / all_available_bits - 1.0) > 0.01) { av_log(s->avctx, AV_LOG_ERROR, - "[lavc rc] Error: 2pass curve failed to converge\n"); + "[lavc rc] Error: 2pass curve failed to converge\n"); return -1; } -- cgit v1.2.3