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revision 1.27.2.11, Tue Mar 25 10:57:02 2003 UTC revision 1.27.2.28, Thu Jul 24 13:09:27 2003 UTC
# Line 3  Line 3 
3   *  XVID MPEG-4 VIDEO CODEC   *  XVID MPEG-4 VIDEO CODEC
4   *  - XviD Main header file -   *  - XviD Main header file -
5   *   *
6   *  This file is part of XviD, a free MPEG-4 video encoder/decoder   *  Copyright(C) 2001-2003 Peter Ross <pross@xvid.org>
7   *   *
8   *  This program is free software; you can redistribute it and/or modify   *  This program is free software; you can redistribute it and/or modify
9   *  it under the terms of the GNU General Public License as published by   *  it under the terms of the GNU General Public License as published by
# Line 67  Line 67 
67   * doesnt hurt but not increasing it could cause difficulty for decoders in the   * doesnt hurt but not increasing it could cause difficulty for decoders in the
68   * future   * future
69   */   */
70  #define XVID_BS_VERSION "0009"  #define XVID_BS_VERSION "0014"
71    
72    
73  /*****************************************************************************  /*****************************************************************************
# Line 99  Line 99 
99  #define XVID_CSP_BGRA           6       /* 32-bit bgra packed */  #define XVID_CSP_BGRA           6       /* 32-bit bgra packed */
100  #define XVID_CSP_ABGR           7       /* 32-bit abgr packed */  #define XVID_CSP_ABGR           7       /* 32-bit abgr packed */
101  #define XVID_CSP_RGBA           8       /* 32-bit rgba packed */  #define XVID_CSP_RGBA           8       /* 32-bit rgba packed */
102  #define XVID_CSP_BGR            9       /* 32-bit bgr packed */  #define XVID_CSP_BGR            9       /* 24-bit bgr packed */
103  #define XVID_CSP_RGB555     10  /* 16-bit rgb555 packed */  #define XVID_CSP_RGB555     10  /* 16-bit rgb555 packed */
104  #define XVID_CSP_RGB565     11  /* 16-bit rgb565 packed */  #define XVID_CSP_RGB565     11  /* 16-bit rgb565 packed */
105  #define XVID_CSP_SLICE          12      /* decoder only: 4:2:0 planar, per slice rendering */  #define XVID_CSP_SLICE          12      /* decoder only: 4:2:0 planar, per slice rendering */
# Line 116  Line 116 
116          int stride[4];                  /* [in] image stride; "bytes per row"*/          int stride[4];                  /* [in] image stride; "bytes per row"*/
117  } xvid_image_t;  } xvid_image_t;
118    
119    /* video-object-sequence profiles */
120    #define XVID_PROFILE_S_L0       0x08    /* simple */
121    #define XVID_PROFILE_S_L1       0x01
122    #define XVID_PROFILE_S_L2       0x02
123    #define XVID_PROFILE_S_L3       0x03
124    #define XVID_PROFILE_ARTS_L1    0x91    /* advanced realtime simple */
125    #define XVID_PROFILE_ARTS_L2    0x92
126    #define XVID_PROFILE_ARTS_L3    0x93
127    #define XVID_PROFILE_ARTS_L4    0x94
128    #define XVID_PROFILE_AS_L0      0xf0    /* advanced simple */
129    #define XVID_PROFILE_AS_L1      0xf1
130    #define XVID_PROFILE_AS_L2      0xf2
131    #define XVID_PROFILE_AS_L3      0xf3
132    #define XVID_PROFILE_AS_L4      0xf4
133    
134  /* aspect ratios */  /* aspect ratios */
135  #define XVID_PAR_11_VGA     1   /* 1:1 vga (square) */  #define XVID_PAR_11_VGA     1   /* 1:1 vga (square) */
# Line 134  Line 148 
148  #define XVID_TYPE_BVOP          3               /* bidirectionally encoded */  #define XVID_TYPE_BVOP          3               /* bidirectionally encoded */
149  #define XVID_TYPE_SVOP          4               /* predicted+sprite frame */  #define XVID_TYPE_SVOP          4               /* predicted+sprite frame */
150    
151    
152  /*****************************************************************************  /*****************************************************************************
153   * xvid_global()   * xvid_global()
154   ****************************************************************************/   ****************************************************************************/
# Line 154  Line 169 
169  #define XVID_CPU_ALTIVEC    0x00000001   /* altivec */  #define XVID_CPU_ALTIVEC    0x00000001   /* altivec */
170    
171    
172    #define XVID_DEBUG_ERROR       0x00000001
173    #define XVID_DEBUG_STARTCODE   0x00000002
174    #define XVID_DEBUG_HEADER      0x00000004
175    #define XVID_DEBUG_TIMECODE    0x00000008
176    #define XVID_DEBUG_MB          0x00000010
177    #define XVID_DEBUG_COEFF       0x00000020
178    #define XVID_DEBUG_MV          0x00000040
179    #define XVID_DEBUG_RC          0x00000080
180    #define XVID_DEBUG_DEBUG       0x80000000
181    
182  /* XVID_GBL_INIT param1 */  /* XVID_GBL_INIT param1 */
183  typedef struct {  typedef struct {
184          int version;          int version;
185          int cpu_flags;                  /* [in:opt]     zero = autodetect cpu          int cpu_flags;                  /* [in:opt]     zero = autodetect cpu
186                                                                          XVID_CPU_FORCE|{cpu features} = force cpu features */                                                                          XVID_CPU_FORCE|{cpu features} = force cpu features */
187        int debug;              /* [in:opt] debug level */
188  } xvid_gbl_init_t;  } xvid_gbl_init_t;
189    
190    
# Line 255  Line 281 
281  } xvid_dec_stats_t;  } xvid_dec_stats_t;
282    
283    
284    
285    #define XVID_ZONE_QUANT     1
286    #define XVID_ZONE_WEIGHT    2
287    typedef struct
288    {
289        int frame;
290        int mode;
291        int increment;
292        int base;
293    } xvid_enc_zone_t;
294    
295    
296    
297  /*****************************************************************************  /*****************************************************************************
298    xvid plugin system -- internals    xvid plugin system -- internals
299    
# Line 264  Line 303 
303    xvidcore will call XVID_PLG_DESTROY during XVID_ENC_DESTROY    xvidcore will call XVID_PLG_DESTROY during XVID_ENC_DESTROY
304   ****************************************************************************/   ****************************************************************************/
305    
306    
307  #define XVID_PLG_CREATE     0  #define XVID_PLG_CREATE     0
308  #define XVID_PLG_DESTROY    1  #define XVID_PLG_DESTROY    1
309  #define XVID_PLG_INFO       2  #define XVID_PLG_INFO       2
# Line 279  Line 319 
319  typedef struct  typedef struct
320  {  {
321      int version;      int version;
322      int flags;              /* plugin flags */      int flags;              /* [in:opt] plugin flags */
323  } xvid_plg_info_t;  } xvid_plg_info_t;
324    
325    
# Line 287  Line 327 
327  {  {
328      int version;      int version;
329    
330      int width;      int num_zones;          /* [out] */
331      int height;      xvid_enc_zone_t * zones;    /* [out] */
     int mb_width;  
     int mb_height;  
         int fincr;  
     int fbase;  
332    
333      void * param;      int width;              /* [out] */
334        int height;             /* [out] */
335        int mb_width;           /* [out] */
336        int mb_height;          /* [out] */
337            int fincr;              /* [out] */
338        int fbase;              /* [out] */
339    
340        void * param;           /* [out] */
341  } xvid_plg_create_t;  } xvid_plg_create_t;
342    
343    
# Line 310  Line 353 
353  {  {
354      int version;      int version;
355    
356        xvid_enc_zone_t * zone;    /* [out] current zone */
357    
358      int width;              /* [out] */      int width;              /* [out] */
359      int height;             /* [out] */      int height;             /* [out] */
360      int mb_width;           /* [out] */      int mb_width;           /* [out] */
# Line 317  Line 362 
362          int fincr;              /* [out] */          int fincr;              /* [out] */
363      int fbase;              /* [out] */      int fbase;              /* [out] */
364    
365        int min_quant[3];       /* [out] */
366        int max_quant[3];       /* [out] */
367    
368      xvid_image_t reference; /* [out] -> [out] */      xvid_image_t reference; /* [out] -> [out] */
369      xvid_image_t current;   /* [out] -> [in,out] */      xvid_image_t current;   /* [out] -> [in,out] */
370      xvid_image_t original;      /* [out] after: points the original (uncompressed) copy of the current frame */      xvid_image_t original;      /* [out] after: points the original (uncompressed) copy of the current frame */
# Line 367  Line 415 
415  } xvid_enc_plugin_t;  } xvid_enc_plugin_t;
416    
417    
418    xvid_plugin_func xvid_plugin_single;   /* single-pass rate control */
419  xvid_plugin_func xvid_plugin_fixed;   /* fixed quantizer control */  xvid_plugin_func xvid_plugin_2pass1;   /* two-pass rate control: first pass */
420  xvid_plugin_func xvid_plugin_cbr;   /* constant bitrate control */  xvid_plugin_func xvid_plugin_2pass2;   /* two-pass rate control: second pass */
 xvid_plugin_func xvid_plugin_2pass1;   /* 2pass rate control: first pass */  
 xvid_plugin_func xvid_plugin_2pass2;   /* 2pass rate control: second pass */  
421    
422  xvid_plugin_func xvid_plugin_lumimasking;  /* lumimasking */  xvid_plugin_func xvid_plugin_lumimasking;  /* lumimasking */
423    
# Line 379  Line 425 
425  xvid_plugin_func xvid_plugin_dump;  /* dump before and after yuvpgms */  xvid_plugin_func xvid_plugin_dump;  /* dump before and after yuvpgms */
426    
427    
 typedef struct  
 {  
     int version;  
     int quant_increment;  
     int quant_base;  
 } xvid_plugin_fixed_t;  
428    
429    typedef struct          /* single pass rate control */
 typedef struct  
430  {  {
431      int version;      int version;
432      int bitrate;      int bitrate;                                /* bits per second */
     int max_quantizer;  
     int min_quantizer;  
433      int reaction_delay_factor;      int reaction_delay_factor;
434      int averaging_period;      int averaging_period;
435      int buffer;      int buffer;
436  } xvid_plugin_cbr_t;  } xvid_plugin_single_t;
437    
438    
439  typedef struct {  typedef struct {
# Line 405  Line 442 
442  } xvid_plugin_2pass1_t;  } xvid_plugin_2pass1_t;
443    
444    
 #define XVID_CURVE_COSINE   0   /* low aggressiveness */  
 #define XVID_CURVE_LINEAR   1   /* medium aggressiveness */  
 #define XVID_CURVE_SINE     2   /* high aggressiveness */  
   
445  #define XVID_PAYBACK_BIAS   0   /* payback with bias */  #define XVID_PAYBACK_BIAS   0   /* payback with bias */
446  #define XVID_PAYBACK_PROP   1   /* payback proportionally */  #define XVID_PAYBACK_PROP   1   /* payback proportionally */
447    
448  typedef struct {  typedef struct {
449      int version;      int version;
450      char * filename1;      int bitrate;                                /* bits per second */
451      char * filename2;      char * filename;
452    
453      int keyframe_boost;             /* keyframe boost percentage: [0..100...]; */      int keyframe_boost;             /* keyframe boost percentage: [0..100...]; */
454      int payback_method;      int payback_method;
# Line 424  Line 457 
457      int curve_compression_low;      int curve_compression_low;
458      int max_overflow_improvement;      int max_overflow_improvement;
459      int max_overflow_degradation;      int max_overflow_degradation;
     int min_quant[3];  
     int max_quant[3];  
   
     int use_alt_curve;  
         int alt_curve_high_dist;  
         int alt_curve_low_dist;  
     int alt_curve_use_auto;  
         int alt_curve_auto_str;  
         int alt_curve_type; /* XVID_CURVE_ */  
         int alt_curve_min_rel_qual;  
         int alt_curve_use_auto_bonus_bias;  
     int alt_curve_bonus_bias;  
460    
461      int kftreshold;      int kftreshold;
462          int kfreduction;          int kfreduction;
463      int min_key_interval;      int min_key_interval;
464    
465            int container_frame_overhead;
466  }xvid_plugin_2pass2_t;  }xvid_plugin_2pass2_t;
467    
468    
# Line 459  Line 482 
482  /* global flags  */  /* global flags  */
483  typedef enum  typedef enum
484  {  {
485      XVID_PACKED                 = 0x00000001,   /* packed bitstream */      XVID_GLOBAL_PACKED                  = 0x00000001,   /* packed bitstream */
486      XVID_CLOSED_GOP             = 0x00000002,   /* closed_gop:  was DX50BVOP dx50 bvop compatibility */      XVID_GLOBAL_CLOSED_GOP              = 0x00000002,   /* closed_gop:  was DX50BVOP dx50 bvop compatibility */
487      XVID_EXTRASTATS_ENABLE  = 0x00000004      XVID_GLOBAL_EXTRASTATS_ENABLE  = 0x00000004
488  /*define XVID_VOL_AT_IVOP       0x00000008       write vol at every ivop: WIN32/divx compatibility */  /*define XVID_GLOBAL_VOL_AT_IVOP        0x00000008       write vol at every ivop: WIN32/divx compatibility */
489  /*define XVID_FORCE_VOL         0x00000008       XXX: when vol-based parameters are changed, insert an ivop NOT recommended */  /*define XVID_GLOBAL_FORCE_VOL          0x00000008       XXX: when vol-based parameters are changed, insert an ivop NOT recommended */
490  } xvid_global_t;  } xvid_global_t;
491    
492    
493  /* XVID_ENC_ENCODE param1 */  /* XVID_ENC_ENCODE param1 */
494  /* vol-based flags */  /* vol-based flags */
495  typedef enum {  typedef enum {
496      XVID_MPEGQUANT          = 0x00000001,      XVID_VOL_MPEGQUANT          = 0x00000001,
497      XVID_EXTRASTATS         = 0x00000002,      XVID_VOL_EXTRASTATS         = 0x00000002,
498      XVID_QUARTERPEL             = 0x00000004,   /* enable quarterpel: frames will encoded as quarterpel */      XVID_VOL_QUARTERPEL         = 0x00000004,   /* enable quarterpel: frames will encoded as quarterpel */
499      XVID_GMC                        = 0x00000008,       /* enable GMC; frames will be checked for gmc suitability */      XVID_VOL_GMC                            = 0x00000008,       /* enable GMC; frames will be checked for gmc suitability */
500      XVID_REDUCED_ENABLE     = 0x00000010,       /* enable reduced resolution vops: frames will be checked for rrv suitability */      XVID_VOL_REDUCED_ENABLE         = 0x00000010,       /* enable reduced resolution vops: frames will be checked for rrv suitability */
501      XVID_INTERLACING        = 0x00000400, /* enable interlaced encoding */      XVID_VOL_INTERLACING        = 0x00000400, /* enable interlaced encoding */
502  } xvid_vol_t;  } xvid_vol_t;
503    
504    
505  /* vop-based flags */  /* vop-based flags */
506  typedef enum {  typedef enum {
507      XVID_DEBUG              = 0x00000001,      XVID_VOP_DEBUG              = 0x00000001,
508    
509        XVID_VOP_HALFPEL            = 0x00000004, /* use halfpel interpolation */
510        XVID_VOP_INTER4V            = 0x00000008,
511    
512      XVID_HALFPEL            = 0x00000004, /* use halfpel interpolation */      XVID_VOP_TRELLISQUANT       = 0x00000010, /* use trellis based R-D "optimal" quantization */
     XVID_INTER4V            = 0x00000008,  
513    
514      XVID_CHROMAOPT          = 0x00000020, /* enable chroma optimization pre-filter */      XVID_VOP_CHROMAOPT          = 0x00000020, /* enable chroma optimization pre-filter */
515      XVID_GREYSCALE          = 0x00000040, /* enable greyscale only mode (even for      XVID_VOP_GREYSCALE          = 0x00000040, /* enable greyscale only mode (even for
516                                                color input material chroma is ignored) */                                                color input material chroma is ignored) */
517      XVID_HQACPRED           = 0x00000080, /* 20030209: high quality ac prediction */      XVID_VOP_HQACPRED           = 0x00000080, /* 20030209: high quality ac prediction */
518      XVID_MODEDECISION_BITS  = 0x00000100, /* enable DCT-ME and use it for mode decision */      XVID_VOP_MODEDECISION_BITS  = 0x00000100, /* enable DCT-ME and use it for mode decision */
519      XVID_DYNAMIC_BFRAMES    = 0x00000200,  
520            /* only valid for vol_flags|=XVID_VOL_INTERLACING */
521          /* only valid for vol_flags|=XVID_INTERLACING */      XVID_VOP_TOPFIELDFIRST      = 0x00000400, /* set top-field-first flag  */
522      XVID_TOPFIELDFIRST      = 0x00000400, /* set top-field-first flag  */      XVID_VOP_ALTERNATESCAN      = 0x00000800, /* set alternate vertical scan flag */
523      XVID_ALTERNATESCAN      = 0x00000800, /* set alternate vertical scan flag */  
524        /* only valid for vol_flags|=XVID_VOL_REDUCED_ENABLED */
525        XVID_VOP_REDUCED            = 0x00001000, /* reduced resolution vop */
526    
527        XVID_VOP_CARTOON                    = 0x00002000, /* use 'cartoon mode' */
528    
     /* only valid for vol_flags|=XVID_REDUCED_ENABLED */  
     XVID_REDUCED            = 0x00001000, /* reduced resolution vop */  
529  } xvid_vop_t;  } xvid_vop_t;
530    
531    
532  typedef enum {  typedef enum {
533      PMV_ADVANCEDDIAMOND16   = 0x00008000, /* use advdiamonds instead of diamonds as search pattern */      XVID_ME_ADVANCEDDIAMOND16   = 0x00008000, /* use advdiamonds instead of diamonds as search pattern */
534      PMV_USESQUARES16        = 0x00800000, /* use squares instead of diamonds as search pattern */      XVID_ME_USESQUARES16        = 0x00800000, /* use squares instead of diamonds as search pattern */
535    
536        XVID_ME_HALFPELREFINE16     = 0x00020000,
537        XVID_ME_HALFPELREFINE8      = 0x02000000,
538    
539        XVID_ME_QUARTERPELREFINE16  = 0x00040000,
540        XVID_ME_QUARTERPELREFINE8   = 0x04000000,
541    
542        XVID_ME_EXTSEARCH16         = 0x00080000, /* extend PMV by more searches */
543    
544        XVID_ME_EXTSEARCH8          = 0x08000000, /* use diamond/square for extended 8x8 search */
545        XVID_ME_ADVANCEDDIAMOND8    = 0x00004000, /* use advdiamond for XVID_ME_EXTSEARCH8 */
546        XVID_ME_USESQUARES8         = 0x80000000, /* use square for XVID_ME_EXTSEARCH8 */
547    
548        XVID_ME_CHROMA16            = 0x00100000, /* also use chroma for P_VOP/S_VOP ME */
549        XVID_ME_CHROMA8             = 0x10000000, /* also use chroma for B_VOP ME */
550    
551        /* Motion search using DCT. use XVID_VOP_MODEDECISION_BITS to enable */
552        XVID_ME_HALFPELREFINE16_BITS    = 0x00000100, /* perform DCT-based halfpel refinement */
553        XVID_ME_HALFPELREFINE8_BITS     = 0x00000200, /* perform DCT-based halfpel refinement for 8x8 mode */
554        XVID_ME_QUARTERPELREFINE16_BITS = 0x00000400, /* perform DCT-based qpel refinement */
555        XVID_ME_QUARTERPELREFINE8_BITS  = 0x00000800, /* perform DCT-based qpel refinement for 8x8 mode */
556    
557      PMV_HALFPELREFINE16     = 0x00020000,      XVID_ME_EXTSEARCH_BITS          = 0x00001000, /* perform DCT-based search using square pattern
558      PMV_HALFPELREFINE8      = 0x02000000,                                                    enable XVID_ME_EXTSEARCH8 to do this in 8x8 search as well */
559        XVID_ME_CHECKPREDICTION_BITS    = 0x00002000, /* always check vector equal to prediction */
560    
561      PMV_QUARTERPELREFINE16  = 0x00040000,      XVID_ME_UNRESTRICTED16      = 0x00200000, /* unrestricted ME, not implemented */
562      PMV_QUARTERPELREFINE8   = 0x04000000,      XVID_ME_OVERLAPPING16       = 0x00400000, /* overlapping ME, not implemented */
563        XVID_ME_UNRESTRICTED8       = 0x20000000, /* unrestricted ME, not implemented */
564        XVID_ME_OVERLAPPING8        = 0x40000000, /* overlapping ME, not implemented */
565    
566        XVID_GME_REFINE  = 0x00010000
567    
     PMV_EXTSEARCH16         = 0x00080000, /* extend PMV by more searches */  
   
     PMV_EXTSEARCH8          = 0x08000000, /* use diamond/square for extended 8x8 search */  
     PMV_ADVANCEDDIAMOND8    = 0x00004000, /* use advdiamond for PMV_EXTSEARCH8 */  
     PMV_USESQUARES8         = 0x80000000, /* use square for PMV_EXTSEARCH8 */  
   
     PMV_CHROMA16            = 0x00100000, /* also use chroma for P_VOP/S_VOP ME */  
     PMV_CHROMA8             = 0x10000000, /* also use chroma for B_VOP ME */  
   
     /* Motion search using DCT. use XVID_MODEDECISION_BITS to enable */  
     HALFPELREFINE16_BITS    = 0x00000100, /* perform DCT-based halfpel refinement */  
     HALFPELREFINE8_BITS     = 0x00000200, /* perform DCT-based halfpel refinement for 8x8 mode */  
     QUARTERPELREFINE16_BITS = 0x00000400, /* perform DCT-based qpel refinement */  
     QUARTERPELREFINE8_BITS  = 0x00000800, /* perform DCT-based qpel refinement for 8x8 mode */  
   
     EXTSEARCH_BITS          = 0x00001000, /* perform DCT-based search using square pattern  
                                                   enable PMV_EXTSEARCH8 to do this in 8x8 search as well */  
     CHECKPREDICTION_BITS    = 0x00002000, /* always check vector equal to prediction */  
   
     PMV_UNRESTRICTED16      = 0x00200000, /* unrestricted ME, not implemented */  
     PMV_OVERLAPPING16       = 0x00400000, /* overlapping ME, not implemented */  
     PMV_UNRESTRICTED8       = 0x20000000, /* unrestricted ME, not implemented */  
     PMV_OVERLAPPING8        = 0x40000000 /* overlapping ME, not implemented */  
568  } xvid_motion_t;  } xvid_motion_t;
569    
570    
571  /* XVID_ENC_CREATE param1 */  /* XVID_ENC_CREATE param1 */
572  typedef struct {  typedef struct {
573          int version;          int version;
574    
575        int profile;            /* [in]     profile@level; refer to XVID_PROFILE_xxx */
576          int width;                              /* [in]         frame dimensions; width, pixel units */          int width;                              /* [in]         frame dimensions; width, pixel units */
577          int height;                             /* [in]         frame dimensions; height, pixel units */          int height;                             /* [in]         frame dimensions; height, pixel units */
578    
579        int num_zones;          /* [in:opt] number of bitrate zones */
580        xvid_enc_zone_t * zones; /*             ^^ zone array */
581    
582      int num_plugins;        /* [in:opt] number of plugins */      int num_plugins;        /* [in:opt] number of plugins */
583      xvid_enc_plugin_t * plugins; /*        ^^ plugin array */      xvid_enc_plugin_t * plugins; /*        ^^ plugin array */
584    
# Line 568  Line 603 
603          int bquant_ratio;               /* [in:opt]     bframe quantizer multipier/offeset; used to decide bframes quant when bquant==-1 */          int bquant_ratio;               /* [in:opt]     bframe quantizer multipier/offeset; used to decide bframes quant when bquant==-1 */
604          int bquant_offset;              /*                      bquant = (avg(past_ref_quant,future_ref_quant)*bquant_ratio + bquant_offset) / 100 */          int bquant_offset;              /*                      bquant = (avg(past_ref_quant,future_ref_quant)*bquant_ratio + bquant_offset) / 100 */
605    
606        int min_quant[3];       /* [in:opt] */
607        int max_quant[3];       /* [in:opt] */
608    
609  /* ^^^ -------------------------------------------------------------------------*/  /* ^^^ -------------------------------------------------------------------------*/
610    
611          void *handle;                   /* [out] encoder instance handle */          void *handle;                   /* [out] encoder instance handle */
# Line 575  Line 613 
613  xvid_enc_create_t;  xvid_enc_create_t;
614    
615    
 typedef struct {  
         int version;  
         int type;                               /* [in] rate control type: XVID_RC_xxx */  
   
         /* common stuff */  
         int min_iquant;         /* [in:opt] ivop quantizer upper/lower limit */  
         int max_iquant;         /* [in:opt] */  
         int min_pquant;         /* [in:opt] psvop quantizer upper/lower limit */  
         int max_pquant;         /* [in:opt]  */  
         int min_bquant;         /* [in:opt] bvop quantizer upper/lower limit */  
         int max_bquant;         /* [in:opt] */  
   
         union {  
                 struct {        /* XVID_RC_FQUANT */  
                         float quant;                            /* [in] quantizer */  
                 } fquant;  
                 struct {        /* XVID_RC_CBR */  
                         int bitrate;                            /* [in] the bitrate of the target encoded stream, in bits/second */  
                         int reaction_delay_factor;      /* [in] how fast the rate control reacts - lower values are faster */  
                         int averaging_period;           /* [in] */  
                         int buffer;                                     /* [in] */  
                 } cbr;  
         } data;  
 } xvid_enc_rc_t;  
   
   
   
616  #define XVID_KEYFRAME   0x00000001  #define XVID_KEYFRAME   0x00000001
617    
618  typedef struct {  typedef struct {
# Line 628  Line 639 
639    
640          int type;                               /* [in:opt] coding type */          int type;                               /* [in:opt] coding type */
641          int quant;                              /* [in] frame quantizer; if <=0, automatatic (ratecontrol) */          int quant;                              /* [in] frame quantizer; if <=0, automatatic (ratecontrol) */
642            int bframe_threshold;
643    
644          void *bitstream;                /* [in:opt] bitstream ptr (written to)*/          void *bitstream;                /* [in:opt] bitstream ptr (written to)*/
645          int length;                             /* [in:opt] bitstream length (bytes) */          int length;                             /* [in:opt] bitstream length (bytes) */

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