diff options
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/patch-x264-aq.patch | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/contrib/patch-x264-aq.patch b/contrib/patch-x264-aq.patch deleted file mode 100644 index 79d8dca54..000000000 --- a/contrib/patch-x264-aq.patch +++ /dev/null @@ -1,299 +0,0 @@ -Index: encoder/ratecontrol.h -=================================================================== ---- encoder/ratecontrol.h (revision 736) -+++ encoder/ratecontrol.h (working copy) -@@ -34,6 +34,7 @@ - int x264_ratecontrol_qp( x264_t * ); - void x264_ratecontrol_end( x264_t *, int bits ); - void x264_ratecontrol_summary( x264_t * ); -+void x264_adaptive_quant ( x264_t * ); - - #endif - -Index: encoder/encoder.c -=================================================================== ---- encoder/encoder.c (revision 736) -+++ encoder/encoder.c (working copy) -@@ -401,6 +401,7 @@ - h->param.analyse.b_fast_pskip = 0; - h->param.analyse.i_noise_reduction = 0; - h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 1, 6 ); -+ h->param.analyse.b_aq = 0; - } - if( h->param.rc.i_rc_method == X264_RC_CQP ) - { -@@ -475,6 +476,10 @@ - if( !h->param.b_cabac ) - h->param.analyse.i_trellis = 0; - h->param.analyse.i_trellis = x264_clip3( h->param.analyse.i_trellis, 0, 2 ); -+ h->param.analyse.b_aq = h->param.analyse.b_aq && h->param.analyse.f_aq_strength > 0; -+ /* VAQ on static sensitivity mode effectively replaces qcomp, so qcomp is raised towards 1 to compensate. */ -+ if(h->param.analyse.b_aq && h->param.analyse.f_aq_sensitivity != 0) -+ h->param.rc.f_qcompress = x264_clip3f(h->param.rc.f_qcompress + h->param.analyse.f_aq_strength * 0.4 / 0.28, 0, 1); - h->param.analyse.i_noise_reduction = x264_clip3( h->param.analyse.i_noise_reduction, 0, 1<<16 ); - - { -Index: encoder/ratecontrol.c -=================================================================== ---- encoder/ratecontrol.c (revision 736) -+++ encoder/ratecontrol.c (working copy) -@@ -127,6 +127,10 @@ - predictor_t *pred_b_from_p; /* predict B-frame size from P-frame satd */ - int bframes; /* # consecutive B-frames before this P-frame */ - int bframe_bits; /* total cost of those frames */ -+ -+ /* AQ stuff */ -+ float aq_threshold; -+ int *ac_energy; - - int i_zones; - x264_zone_t *zones; -@@ -169,7 +173,97 @@ - + rce->misc_bits; - } - -+// Find the total AC energy of the block in all planes. -+static int ac_energy_mb( x264_t *h, int mb_x, int mb_y, int *satd ) -+{ -+ DECLARE_ALIGNED( static uint8_t, flat[16], 16 ) = {128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128}; -+// DECLARE_ALIGNED( static uint8_t, flat[16], 16 ); -+ unsigned int var=0, sad, ssd, i; -+ for( i=0; i<3; i++ ) -+ { -+ int w = i ? 8 : 16; -+ int stride = h->fenc->i_stride[i]; -+ int offset = h->mb.b_interlaced -+ ? w * (mb_x + (mb_y&~1) * stride) + (mb_y&1) * stride -+ : w * (mb_x + mb_y * stride); -+ int pix = i ? PIXEL_8x8 : PIXEL_16x16; -+ stride <<= h->mb.b_interlaced; -+ sad = h->pixf.sad[pix](flat, 0, h->fenc->plane[i]+offset, stride); -+ ssd = h->pixf.ssd[pix](flat, 0, h->fenc->plane[i]+offset, stride); -+ var += ssd - (sad * sad >> (i?6:8)); -+ // SATD to represent the block's overall complexity (bit cost) for intra encoding. -+ // exclude the DC coef, because nothing short of an actual intra prediction will estimate DC cost. -+ if( var && satd ) -+ *satd += h->pixf.satd[pix](flat, 0, h->fenc->plane[i]+offset, stride) - sad/2; -+ } -+ return var; -+} -+ -+void x264_autosense_aq( x264_t *h ) -+{ -+ double total = 0; -+ double n = 0; -+ int mb_x, mb_y; -+ /* FIXME: Some of the SATDs might be already calculated elsewhere (ratecontrol?). Can we reuse them? */ -+ /* FIXME: Is chroma SATD necessary? */ -+ for( mb_y=0; mb_y<h->sps->i_mb_height; mb_y++ ) -+ for( mb_x=0; mb_x<h->sps->i_mb_width; mb_x++ ) -+ { -+ int energy, satd=0; -+ energy = ac_energy_mb( h, mb_x, mb_y, &satd ); -+ h->rc->ac_energy[mb_x + mb_y * h->sps->i_mb_width] = energy; -+ /* Weight the energy value by the SATD value of the MB. This represents the fact that -+ the more complex blocks in a frame should be weighted more when calculating the optimal sensitivity. -+ This also helps diminish the negative effect of large numbers of simple blocks in a frame, such as in the case -+ of a letterboxed film. */ -+ if( energy ) -+ { -+ x264_cpu_restore(h->param.cpu); -+ total += logf(energy) * satd; -+ n += satd; -+ } -+ } -+ x264_cpu_restore(h->param.cpu); -+ /* Calculate and store the threshold. */ -+ h->rc->aq_threshold = n ? total/n : 15; -+} - -+/***************************************************************************** -+* x264_adaptive_quant: -+ * adjust macroblock QP based on variance (AC energy) of the MB. -+ * high variance = higher QP -+ * low variance = lower QP -+ * This generally increases SSIM and lowers PSNR. -+*****************************************************************************/ -+void x264_adaptive_quant( x264_t *h ) -+{ -+ int qp = h->mb.i_qp; -+ int energy; -+ x264_cpu_restore(h->param.cpu); -+ if(h->param.analyse.f_aq_sensitivity != 0) -+ energy = ac_energy_mb( h, h->mb.i_mb_x, h->mb.i_mb_y, NULL ); -+ else -+ energy = h->rc->ac_energy[h->mb.i_mb_xy]; -+ if(energy == 0) -+ { -+ h->mb.i_qp = h->mb.i_last_qp; -+ } -+ else -+ { -+ x264_cpu_restore(h->param.cpu); -+ float result = energy; -+ /* Adjust the QP based on the AC energy of the macroblock. */ -+ float qp_adj = 3 * (logf(result) - h->rc->aq_threshold); -+ if(h->param.analyse.f_aq_sensitivity == 0) qp_adj = x264_clip3f(qp_adj, -5, 5); -+ int new_qp = x264_clip3(qp + qp_adj * h->param.analyse.f_aq_strength + .5, h->param.rc.i_qp_min, h->param.rc.i_qp_max); -+ /* If the QP of this MB is within 1 of the previous MB, code the same QP as the previous MB, -+ * to lower the bit cost of the qp_delta. */ -+ if(abs(new_qp - h->mb.i_last_qp) == 1) new_qp = h->mb.i_last_qp; -+ h->mb.i_qp = new_qp; -+ } -+ h->mb.i_chroma_qp = i_chroma_qp_table[x264_clip3( h->mb.i_qp + h->pps->i_chroma_qp_index_offset, 0, 51 )]; -+} -+ - int x264_ratecontrol_new( x264_t *h ) - { - x264_ratecontrol_t *rc; -@@ -244,7 +338,7 @@ - rc->rate_tolerance = 0.01; - } - -- h->mb.b_variable_qp = rc->b_vbv && !rc->b_2pass; -+ h->mb.b_variable_qp = (rc->b_vbv && !rc->b_2pass) || h->param.analyse.b_aq; - - if( rc->b_abr ) - { -@@ -458,10 +552,13 @@ - x264_free( p ); - } - -- for( i=1; i<h->param.i_threads; i++ ) -+ for( i=0; i<h->param.i_threads; i++ ) - { - h->thread[i]->rc = rc+i; -- rc[i] = rc[0]; -+ if( i ) -+ rc[i] = rc[0]; -+ if( h->param.analyse.b_aq ) -+ rc[i].ac_energy = x264_malloc( h->mb.i_mb_count * sizeof(int) ); - } - - return 0; -@@ -623,6 +720,8 @@ - x264_free( rc->zones[i].param ); - x264_free( rc->zones ); - } -+ for( i=0; i<h->param.i_threads; i++ ) -+ x264_free( rc[i].ac_energy ); - x264_free( rc ); - } - -@@ -729,6 +828,15 @@ - - if( h->sh.i_type != SLICE_TYPE_B ) - rc->last_non_b_pict_type = h->sh.i_type; -+ -+ /* Adaptive AQ sensitivity algorithm. */ -+ if( h->param.analyse.b_aq ) -+ { -+ if( h->param.analyse.f_aq_sensitivity > 0 ) -+ h->rc->aq_threshold = logf(powf(h->param.analyse.f_aq_sensitivity,4)/2); //FIXME simplify -+ else -+ x264_autosense_aq(h); -+ } - } - - double predict_row_size( x264_t *h, int y, int qp ) -Index: encoder/analyse.c -=================================================================== ---- encoder/analyse.c (revision 736) -+++ encoder/analyse.c (working copy) -@@ -2047,8 +2047,13 @@ - int i_cost = COST_MAX; - int i; - -- /* init analysis */ -- x264_mb_analyse_init( h, &analysis, x264_ratecontrol_qp( h ) ); -+ h->mb.i_qp = x264_ratecontrol_qp( h ); -+ -+ if( h->param.analyse.b_aq ) -+ x264_adaptive_quant( h ); -+ -+ /* init analysis */ -+ x264_mb_analyse_init( h, &analysis, h->mb.i_qp ); - - /*--------------------------- Do the analysis ---------------------------*/ - if( h->sh.i_type == SLICE_TYPE_I ) -Index: x264.c -=================================================================== ---- x264.c (revision 736) -+++ x264.c (working copy) -@@ -244,6 +244,14 @@ - " - 2: enabled on all mode decisions\n", defaults->analyse.i_trellis ); - H0( " --no-fast-pskip Disables early SKIP detection on P-frames\n" ); - H0( " --no-dct-decimate Disables coefficient thresholding on P-frames\n" ); -+ H0( " --aq-strength <float> Amount to adjust QP/lambda per MB [%.1f]\n" -+ " 0.0: no AQ\n" -+ " 1.0: medium AQ\n", defaults->analyse.f_aq_strength ); -+ H0( " --aq-sensitivity <float> \"Center\" of AQ curve. [%.1f]\n" -+ " 0: automatic sensitivity (avoids moving bits between frames)\n" -+ " 10: most QPs are raised\n" -+ " 20: good general-use sensitivity\n" -+ " 30: most QPs are lowered\n", defaults->analyse.f_aq_sensitivity ); - H0( " --nr <integer> Noise reduction [%d]\n", defaults->analyse.i_noise_reduction ); - H1( "\n" ); - H1( " --deadzone-inter <int> Set the size of the inter luma quantization deadzone [%d]\n", defaults->analyse.i_luma_deadzone[0] ); -@@ -407,6 +415,8 @@ - { "trellis", required_argument, NULL, 't' }, - { "no-fast-pskip", no_argument, NULL, 0 }, - { "no-dct-decimate", no_argument, NULL, 0 }, -+ { "aq-strength", required_argument, NULL, 0 }, -+ { "aq-sensitivity", required_argument, NULL, 0 }, - { "deadzone-inter", required_argument, NULL, '0' }, - { "deadzone-intra", required_argument, NULL, '0' }, - { "level", required_argument, NULL, 0 }, -Index: common/common.c -=================================================================== ---- common/common.c (revision 736) -+++ common/common.c (working copy) -@@ -123,6 +123,9 @@ - param->analyse.i_chroma_qp_offset = 0; - param->analyse.b_fast_pskip = 1; - param->analyse.b_dct_decimate = 1; -+ param->analyse.b_aq = 1; -+ param->analyse.f_aq_strength = 0.5; -+ param->analyse.f_aq_sensitivity = 13; - param->analyse.i_luma_deadzone[0] = 21; - param->analyse.i_luma_deadzone[1] = 11; - param->analyse.b_psnr = 1; -@@ -455,6 +458,13 @@ - p->analyse.b_fast_pskip = atobool(value); - OPT("dct-decimate") - p->analyse.b_dct_decimate = atobool(value); -+ OPT("aq-strength") -+ { -+ p->analyse.f_aq_strength = atof(value); -+ p->analyse.b_aq = 1; -+ } -+ OPT("aq-sensitivity") -+ p->analyse.f_aq_sensitivity = atof(value); - OPT("deadzone-inter") - p->analyse.i_luma_deadzone[0] = atoi(value); - OPT("deadzone-intra") -@@ -883,6 +893,10 @@ - s += sprintf( s, " ip_ratio=%.2f", p->rc.f_ip_factor ); - if( p->i_bframe ) - s += sprintf( s, " pb_ratio=%.2f", p->rc.f_pb_factor ); -+ if( p->analyse.b_aq ) -+ s += sprintf( s, " aq=1:%.1f:%.1f", p->analyse.f_aq_strength, p->analyse.f_aq_sensitivity ); -+ else -+ s += sprintf( s, " aq=0" ); - if( p->rc.psz_zones ) - s += sprintf( s, " zones=%s", p->rc.psz_zones ); - else if( p->rc.i_zones ) -Index: x264.h -=================================================================== ---- x264.h (revision 736) -+++ x264.h (working copy) -@@ -232,6 +232,9 @@ - int i_trellis; /* trellis RD quantization */ - int b_fast_pskip; /* early SKIP detection on P-frames */ - int b_dct_decimate; /* transform coefficient thresholding on P-frames */ -+ int b_aq; /* psy adaptive QP */ -+ float f_aq_strength; -+ float f_aq_sensitivity; - int i_noise_reduction; /* adaptive pseudo-deadzone */ - - /* the deadzone size that will be used in luma quantization */ |