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Diffstat (limited to 'thirdparty/libtheora/collect.h')
| -rw-r--r-- | thirdparty/libtheora/collect.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/thirdparty/libtheora/collect.h b/thirdparty/libtheora/collect.h new file mode 100644 index 0000000000..9458b84e3f --- /dev/null +++ b/thirdparty/libtheora/collect.h @@ -0,0 +1,109 @@ +/******************************************************************** + * * + * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. * + * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * + * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * + * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * + * * + * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 * + * by the Xiph.Org Foundation http://www.xiph.org/ * + * * + ******************************************************************** + + function: mode selection code + last mod: $Id$ + + ********************************************************************/ +#if !defined(_collect_H) +# define _collect_H (1) +# include "encint.h" +# if defined(OC_COLLECT_METRICS) +# include <stdio.h> + + + +typedef struct oc_mode_metrics oc_mode_metrics; + + + +/**Sets the file name to load/store mode metrics from/to. + * The file name string is stored by reference, and so must be valid for the + * lifetime of the encoder. + * Mode metric collection uses global tables; do not attempt to perform + * multiple collections at once. + * \param[in] _buf <tt>char[]</tt> The file name. + * \retval TH_EIMPL Not supported by this implementation.*/ +#define TH_ENCCTL_SET_METRICS_FILE (0x8000) + + + +/*Accumulates various weighted sums of the measurements. + w -> weight + s -> SATD + q -> log quantizer + r -> rate (in bits) + d -> RMSE + All of the single letters correspond to direct, weighted sums, e.g., + w=sum(w_i), s=sum(s_i*w_i), etc. + The others correspond to central moments (or co-moments) of the given order, + e.g., sq=sum((s_i-s/w)*(q_i-q/w)*w_i). + Because we need some moments up to fourth order, we use central moments to + minimize the dynamic range and prevent rounding error from dominating the + calculations.*/ +struct oc_mode_metrics{ + double w; + double s; + double q; + double r; + double d; + double s2; + double sq; + double q2; + double sr; + double qr; + double r2; + double sd; + double qd; + double d2; + double s2q; + double sq2; + double sqr; + double sqd; + double s2q2; +}; + + +# define OC_ZWEIGHT (0.25) + +/*TODO: It may be helpful (for block-level quantizers especially) to separate + out the contributions from AC and DC into separate tables.*/ + +extern ogg_int16_t OC_MODE_LOGQ[OC_LOGQ_BINS][3][2]; +extern oc_mode_rd OC_MODE_RD_SATD[OC_LOGQ_BINS][3][2][OC_COMP_BINS]; +extern oc_mode_rd OC_MODE_RD_SAD[OC_LOGQ_BINS][3][2][OC_COMP_BINS]; + +extern int OC_HAS_MODE_METRICS; +extern oc_mode_metrics OC_MODE_METRICS_SATD[OC_LOGQ_BINS-1][3][2][OC_COMP_BINS]; +extern oc_mode_metrics OC_MODE_METRICS_SAD[OC_LOGQ_BINS-1][3][2][OC_COMP_BINS]; +extern const char *OC_MODE_METRICS_FILENAME; + +void oc_mode_metrics_dump(); +void oc_mode_metrics_print(FILE *_fout); + +void oc_mode_metrics_add(oc_mode_metrics *_metrics, + double _w,int _s,int _q,int _r,double _d); +void oc_mode_metrics_merge(oc_mode_metrics *_dst, + const oc_mode_metrics *_src,int _n); +double oc_mode_metrics_solve(double *_r,double *_d, + const oc_mode_metrics *_metrics,const int *_s0,const int *_s1, + const int *_q0,const int *_q1, + const double *_ra,const double *_rb,const double *_rc, + const double *_da,const double *_db,const double *_dc,int _n); +void oc_mode_metrics_update(oc_mode_metrics (*_metrics)[3][2][OC_COMP_BINS], + int _niters_min,int _reweight,oc_mode_rd (*_table)[3][2][OC_COMP_BINS], + int shift,double (*_weight)[3][2][OC_COMP_BINS]); +void oc_enc_mode_metrics_load(oc_enc_ctx *_enc); +void oc_enc_mode_metrics_collect(oc_enc_ctx *_enc); + +# endif +#endif |