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revision 853, Sat Feb 15 18:48:15 2003 UTC revision 1397, Thu Apr 1 11:11:28 2004 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     *  Copyright(C) 2001-2004 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
10  *  the Free Software Foundation ; either version 2 of the License, or  *  the Free Software Foundation ; either version 2 of the License, or
# Line 17  Line 19 
19  *  along with this program ; if not, write to the Free Software  *  along with this program ; if not, write to the Free Software
20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21  *  *
22  *****************************************************************************/   * $Id: xvid.h,v 1.34 2004-04-01 11:11:28 suxen_drol Exp $
 /*****************************************************************************  
 *  
 *  History  
 *  
 *  - 2002/06/13 Added legal header, ANSI C comment style (only for this header  
 *               as it can be included in a ANSI C project).  
 *  
 *               ToDo ? : when BFRAMES is defined, the API_VERSION should not  
 *                        be the same (3.0 ?)  
23  *  *
24  *  $Id: xvid.h,v 1.26 2003-02-15 18:48:15 edgomez Exp $   ****************************************************************************/
 *  
 *****************************************************************************/  
   
25    
26  #ifndef _XVID_H_  #ifndef _XVID_H_
27  #define _XVID_H_  #define _XVID_H_
28    
29    
30  #ifdef __cplusplus  #ifdef __cplusplus
31  extern "C" {  extern "C" {
32  #endif  #endif
33    
34  /*****************************************************************************  /*****************************************************************************
35   * Global constants   * versioning
36   ****************************************************************************/   ****************************************************************************/
37    
38  /* API Version : 2.1 */  /* versioning
39  #define API_VERSION ((2 << 16) | (1))          version takes the form "$major.$minor.$patch"
40  #define XVID_API_UNSTABLE          $patch is incremented when there is no api change
41            $minor is incremented when the api is changed, but remains backwards compatible
42            $major is incremented when the api is changed significantly
43    
44            when initialising an xvid structure, you must always zero it, and set the version field.
45                    memset(&struct,0,sizeof(struct));
46                    struct.version = XVID_VERSION;
47    
48            XVID_UNSTABLE is defined only during development.
49            */
50    
51    #define XVID_MAKE_VERSION(a,b,c) ((((a)&0xff)<<16) | (((b)&0xff)<<8) | ((c)&0xff))
52    #define XVID_VERSION_MAJOR(a)    ((char)(((a)>>16) & 0xff))
53    #define XVID_VERSION_MINOR(a)    ((char)(((a)>> 8) & 0xff))
54    #define XVID_VERSION_PATCH(a)    ((char)(((a)>> 0) & 0xff))
55    
56    #define XVID_MAKE_API(a,b)       ((((a)&0xff)<<16) | (((b)&0xff)<<0))
57    #define XVID_API_MAJOR(a)        (((a)>>16) & 0xff)
58    #define XVID_API_MINOR(a)        (((a)>> 0) & 0xff)
59    
60    #define XVID_VERSION             XVID_MAKE_VERSION(1,0,-123)
61    #define XVID_API                 XVID_MAKE_API(4, 0)
62    
63    #define XVID_UNSTABLE
64    
65  /* Bitstream Version  /* Bitstream Version
66   * this will be writen into the bitstream to allow easy detection of xvid   * this will be writen into the bitstream to allow easy detection of xvid
# Line 59  Line 73 
73   * 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
74   * future   * future
75   */   */
76  #define XVID_BS_VERSION "0009"  #define XVID_BS_VERSION "0029"
77    
78    
79  /* Error codes */  /*****************************************************************************
80  #define XVID_ERR_FAIL           -1   * error codes
81  #define XVID_ERR_OK                     0   ****************************************************************************/
 #define XVID_ERR_MEMORY         1  
 #define XVID_ERR_FORMAT         2  
82    
83            /*      all functions return values <0 indicate error */
84    
85  /* Colorspaces */  #define XVID_ERR_FAIL           -1              /* general fault */
86  #define XVID_CSP_RGB24  0               /* [b|g|r] */  #define XVID_ERR_MEMORY         -2              /* memory allocation error */
87  #define XVID_CSP_YV12   1  #define XVID_ERR_FORMAT         -3              /* file format error */
88  #define XVID_CSP_YUY2   2  #define XVID_ERR_VERSION        -4              /* structure version not supported */
89  #define XVID_CSP_UYVY   3  #define XVID_ERR_END            -5              /* encoder only; end of stream reached */
 #define XVID_CSP_I420   4  
 #define XVID_CSP_RGB555 10  
 #define XVID_CSP_RGB565 11  
 #define XVID_CSP_USER   12  
 #define XVID_CSP_EXTERN      1004  // per slice rendering  
 #define XVID_CSP_YVYU   1002  
 #define XVID_CSP_RGB32  1000    /* [b|g|r|a] */  
 #define XVID_CSP_ABGR   1006    /* [a|b|g|r] */  
 #define XVID_CSP_RGBA   1005    /* [r|g|b|a] */  
90    
91    
92    
93  #define XVID_CSP_NULL   9999  /*****************************************************************************
94     * xvid_image_t
95     ****************************************************************************/
96    
97    /* colorspace values */
98    
99  #define XVID_CSP_VFLIP  0x80000000      // flip mask  #define XVID_CSP_PLANAR   (1<< 0) /* 4:2:0 planar (==I420, except for pointers/strides) */
100    #define XVID_CSP_USER     XVID_CSP_PLANAR
101    #define XVID_CSP_I420     (1<< 1) /* 4:2:0 planar */
102    #define XVID_CSP_YV12     (1<< 2) /* 4:2:0 planar */
103    #define XVID_CSP_YUY2     (1<< 3) /* 4:2:2 packed */
104    #define XVID_CSP_UYVY     (1<< 4) /* 4:2:2 packed */
105    #define XVID_CSP_YVYU     (1<< 5) /* 4:2:2 packed */
106    #define XVID_CSP_BGRA     (1<< 6) /* 32-bit bgra packed */
107    #define XVID_CSP_ABGR     (1<< 7) /* 32-bit abgr packed */
108    #define XVID_CSP_RGBA     (1<< 8) /* 32-bit rgba packed */
109    #define XVID_CSP_ARGB     (1<<15) /* 32-bit argb packed */
110    #define XVID_CSP_BGR      (1<< 9) /* 24-bit bgr packed */
111    #define XVID_CSP_RGB555   (1<<10) /* 16-bit rgb555 packed */
112    #define XVID_CSP_RGB565   (1<<11) /* 16-bit rgb565 packed */
113    #define XVID_CSP_SLICE    (1<<12) /* decoder only: 4:2:0 planar, per slice rendering */
114    #define XVID_CSP_INTERNAL (1<<13) /* decoder only: 4:2:0 planar, returns ptrs to internal buffers */
115    #define XVID_CSP_NULL     (1<<14) /* decoder only: dont output anything */
116    #define XVID_CSP_VFLIP    (1<<31) /* vertical flip mask */
117    
118    /* xvid_image_t
119            for non-planar colorspaces use only plane[0] and stride[0]
120            four plane reserved for alpha*/
121    typedef struct {
122            int csp;                                /* [in] colorspace; or with XVID_CSP_VFLIP to perform vertical flip */
123            void * plane[4];                /* [in] image plane ptrs */
124            int stride[4];                  /* [in] image stride; "bytes per row"*/
125    } xvid_image_t;
126    
127    /* video-object-sequence profiles */
128    #define XVID_PROFILE_S_L0    0x08 /* simple */
129    #define XVID_PROFILE_S_L1    0x01
130    #define XVID_PROFILE_S_L2    0x02
131    #define XVID_PROFILE_S_L3    0x03
132    #define XVID_PROFILE_ARTS_L1 0x91 /* advanced realtime simple */
133    #define XVID_PROFILE_ARTS_L2 0x92
134    #define XVID_PROFILE_ARTS_L3 0x93
135    #define XVID_PROFILE_ARTS_L4 0x94
136    #define XVID_PROFILE_AS_L0   0xf0 /* advanced simple */
137    #define XVID_PROFILE_AS_L1   0xf1
138    #define XVID_PROFILE_AS_L2   0xf2
139    #define XVID_PROFILE_AS_L3   0xf3
140    #define XVID_PROFILE_AS_L4   0xf4
141    
142    /* aspect ratios */
143    #define XVID_PAR_11_VGA    1 /* 1:1 vga (square), default if supplied PAR is not a valid value */
144    #define XVID_PAR_43_PAL    2 /* 4:3 pal (12:11 625-line) */
145    #define XVID_PAR_43_NTSC   3 /* 4:3 ntsc (10:11 525-line) */
146    #define XVID_PAR_169_PAL   4 /* 16:9 pal (16:11 625-line) */
147    #define XVID_PAR_169_NTSC  5 /* 16:9 ntsc (40:33 525-line) */
148    #define XVID_PAR_EXT      15 /* extended par; use par_width, par_height */
149    
150    /* frame type flags */
151    #define XVID_TYPE_VOL     -1 /* decoder only: vol was decoded */
152    #define XVID_TYPE_NOTHING  0 /* decoder only (encoder stats): nothing was decoded/encoded */
153    #define XVID_TYPE_AUTO     0 /* encoder: automatically determine coding type */
154    #define XVID_TYPE_IVOP     1 /* intra frame */
155    #define XVID_TYPE_PVOP     2 /* predicted frame */
156    #define XVID_TYPE_BVOP     3 /* bidirectionally encoded */
157    #define XVID_TYPE_SVOP     4 /* predicted+sprite frame */
158    
159    
160  /*****************************************************************************  /*****************************************************************************
161   *  Initialization constants   * xvid_global()
162   ****************************************************************************/   ****************************************************************************/
163    
164  /* CPU flags for XVID_INIT_PARAM.cpu_flags */  /* cpu_flags definitions (make sure to sync this with cpuid.asm for ia32) */
 #define XVID_CPU_FORCE          0x80000000  
 #define XVID_CPU_CHKONLY        0x40000000              /* check cpu only; dont init globals */  
165    
166  #define XVID_CPU_ASM            0x00000080              /* native assembly */  #define XVID_CPU_FORCE    (1<<31) /* force passed cpu flags */
167    #define XVID_CPU_ASM      (1<< 7) /* native assembly */
168  /* ARCH_IS_IA32 */  /* ARCH_IS_IA32 */
169  #define XVID_CPU_MMX            0x00000001              /* mmx: pentiumMMX,k6 */  #define XVID_CPU_MMX      (1<< 0) /*       mmx : pentiumMMX,k6 */
170  #define XVID_CPU_MMXEXT         0x00000002              /* mmxx-ext: pentium2,athlon */  #define XVID_CPU_MMXEXT   (1<< 1) /*   mmx-ext : pentium2, athlon */
171  #define XVID_CPU_SSE            0x00000004              /* sse: pentium3,athlonXP */  #define XVID_CPU_SSE      (1<< 2) /*       sse : pentium3, athlonXP */
172  #define XVID_CPU_SSE2           0x00000008              /* sse2: pentium4,athlon64 */  #define XVID_CPU_SSE2     (1<< 3) /*      sse2 : pentium4, athlon64 */
173  #define XVID_CPU_3DNOW          0x00000010              /* 3dnow: k6-2 */  #define XVID_CPU_3DNOW    (1<< 4) /*     3dnow : k6-2 */
174  #define XVID_CPU_3DNOWEXT       0x00000020              /* 3dnow-ext: athlon */  #define XVID_CPU_3DNOWEXT (1<< 5) /* 3dnow-ext : athlon */
175  #define XVID_CPU_TSC            0x00000040              /* timestamp counter */  #define XVID_CPU_TSC      (1<< 6) /*       tsc : Pentium */
 /* ARCH_IS_IA64 */  
 #define XVID_CPU_IA64           XVID_CPU_ASM    /* defined for backward compatibility */  
176  /* ARCH_IS_PPC */  /* ARCH_IS_PPC */
177  #define XVID_CPU_ALTIVEC        0x00000001              /* altivec */  #define XVID_CPU_ALTIVEC  (1<< 0) /* altivec */
178    
179    
180          typedef struct  #define XVID_DEBUG_ERROR     (1<< 0)
181          {  #define XVID_DEBUG_STARTCODE (1<< 1)
182                  int colorspace;  #define XVID_DEBUG_HEADER    (1<< 2)
183                  void * y;  #define XVID_DEBUG_TIMECODE  (1<< 3)
184                  void * u;  #define XVID_DEBUG_MB        (1<< 4)
185                  void * v;  #define XVID_DEBUG_COEFF     (1<< 5)
186                  int y_stride;  #define XVID_DEBUG_MV        (1<< 6)
187                  int uv_stride;  #define XVID_DEBUG_RC        (1<< 7)
188          } XVID_IMAGE;           /* from yv12 */  #define XVID_DEBUG_DEBUG     (1<<31)
   
 #define XVID_INIT_INIT          0  
 #define XVID_INIT_CONVERT       1  
 #define XVID_INIT_TEST          2  
189    
190  /*****************************************************************************  /* XVID_GBL_INIT param1 */
191   *  Initialization structures  typedef struct {
192   ****************************************************************************/          int version;
193            unsigned int cpu_flags; /* [in:opt] zero = autodetect cpu; XVID_CPU_FORCE|{cpu features} = force cpu features */
194            int debug;     /* [in:opt] debug level */
195    } xvid_gbl_init_t;
196    
         typedef struct  
         {  
                 int cpu_flags;  
                 int api_version;  
                 int core_build;  
         }  
         XVID_INIT_PARAM;  
197    
198          typedef struct  /* XVID_GBL_INFO param1 */
199          {  typedef struct {
200                  XVID_IMAGE input;          int version;
201                  XVID_IMAGE output;          int actual_version; /* [out] returns the actual xvidcore version */
202                  int width;          const char * build; /* [out] if !null, points to description of this xvid core build */
203                  int height;          unsigned int cpu_flags;      /* [out] detected cpu features */
204                  int interlacing;          int num_threads;    /* [out] detected number of cpus/threads */
205          } XVID_INIT_CONVERTINFO;  } xvid_gbl_info_t;
206    
 /*****************************************************************************  
  *  Initialization entry point  
  ****************************************************************************/  
207    
208          int xvid_init(void *handle,  /* XVID_GBL_CONVERT param1 */
209                                    int opt,  typedef struct {
210                                    void *param1,          int version;
211                                    void *param2);          xvid_image_t input;  /* [in] input image & colorspace */
212            xvid_image_t output; /* [in] output image & colorspace */
213            int width;           /* [in] width */
214            int height;          /* [in] height */
215            int interlacing;     /* [in] interlacing */
216    } xvid_gbl_convert_t;
217    
218    
219  /*****************************************************************************  #define XVID_GBL_INIT    0 /* initialize xvidcore; must be called before using xvid_decore, or xvid_encore) */
220   * Decoder constants  #define XVID_GBL_INFO    1 /* return some info about xvidcore, and the host computer */
221   ****************************************************************************/  #define XVID_GBL_CONVERT 2 /* colorspace conversion utility */
222    
223    extern int xvid_global(void *handle, int opt, void *param1, void *param2);
224    
 /* Flags for XVID_DEC_FRAME.general */  
 #define XVID_DEC_LOWDELAY               0x00000001      /* decode lowdelay mode (ie. video-for-windows) */  
 #define XVID_DEC_DEBLOCKY               0x00000002      /* luma deblocking */  
 #define XVID_DEC_DEBLOCKUV              0x00000008      /* chroma deblocking */  
 #define XVID_DEC_DISCONTINUITY  0x00000004      /* indicates break in stream; instructs  
                                                                                         decoder to ignore any previous reference frames */  
 #define XVID_QUICK_DECODE               0x00000010  
225    
226  /*****************************************************************************  /*****************************************************************************
227   * Decoder structures   * xvid_decore()
228   ****************************************************************************/   ****************************************************************************/
229    
230          typedef struct  #define XVID_DEC_CREATE  0 /* create decore instance; return 0 on success */
231          {  #define XVID_DEC_DESTROY 1 /* destroy decore instance: return 0 on success */
232                  int width;  #define XVID_DEC_DECODE  2 /* decode a frame: returns number of bytes consumed >= 0 */
233                  int height;  
234                  void *handle;  extern int xvid_decore(void *handle, int opt, void *param1, void *param2);
235          }  
236          XVID_DEC_PARAM;  /* XVID_DEC_CREATE param 1
237            image width & height may be specified here when the dimensions are
238            known in advance. */
239  #define XVID_DEC_VOP    0  typedef struct {
240  #define XVID_DEC_VOL    1          int version;
241  #define XVID_DEC_NOTHING        2       /* nothing was decoded */          int width;     /* [in:opt] image width */
242            int height;    /* [in:opt] image width */
243          typedef struct          void * handle; /* [out]    decore context handle */
244          {  } xvid_dec_create_t;
245                  int notify;                     /* [out]        output 'mode' */  
246                  union  
247                  {  /* XVID_DEC_DECODE param1 */
248                          struct  /* XVID_DEC_VOP */  /* general flags */
249                          {  #define XVID_LOWDELAY      (1<<0) /* lowdelay mode  */
250    #define XVID_DISCONTINUITY (1<<1) /* indicates break in stream */
251    #define XVID_DEBLOCKY      (1<<2) /* perform luma deblocking */
252    #define XVID_DEBLOCKUV     (1<<3) /* perform chroma deblocking */
253    #define XVID_FILMEFFECT    (1<<4) /* adds film grain */
254    
255    typedef struct {
256            int version;
257            int general;         /* [in:opt] general flags */
258            void *bitstream;     /* [in]     bitstream (read from)*/
259            int length;          /* [in]     bitstream length */
260            xvid_image_t output; /* [in]     output image (written to) */
261            int brightness;          /* [in]         brightness offset (0=none) */
262    } xvid_dec_frame_t;
263    
264    
265    /* XVID_DEC_DECODE param2 :: optional */
266    typedef struct
267    {
268            int version;
269    
270            int type;                   /* [out] output data type */
271            union {
272                    struct { /* type>0 {XVID_TYPE_IVOP,XVID_TYPE_PVOP,XVID_TYPE_BVOP,XVID_TYPE_SVOP} */
273                            int general;        /* [out] flags */
274                                  int time_base;          /* [out]        time base */                                  int time_base;          /* [out]        time base */
275                                  int time_increment;     /* [out]        time increment */                                  int time_increment;     /* [out]        time increment */
276    
277                            /* XXX: external deblocking stuff */
278                            int * qscale;       /* [out] pointer to quantizer table */
279                            int qscale_stride;  /* [out] quantizer scale stride */
280    
281                          } vop;                          } vop;
282                          struct  /* XVID_DEC_VOL */                  struct {        /* XVID_TYPE_VOL */
283                          {                          int general;        /* [out] flags */
                                 int general;            /* [out]        flags: eg. frames are interlaced */  
284                                  int width;                      /* [out]        width */                                  int width;                      /* [out]        width */
285                                  int height;                     /* [out]        height */                                  int height;                     /* [out]        height */
286                                  int aspect_ratio;       /* [out]        aspect ratio */                          int par;            /* [out] pixel aspect ratio (refer to XVID_PAR_xxx above) */
287                                  int par_width;          /* [out]        aspect ratio width */                          int par_width;      /* [out] aspect ratio width  [1..255] */
288                                  int par_height;         /* [out]        aspect ratio height */                          int par_height;     /* [out] aspect ratio height [1..255] */
289                          } vol;                          } vol;
290                  } data;                  } data;
291          } XVID_DEC_STATS;  } xvid_dec_stats_t;
292    
293    #define XVID_ZONE_QUANT  (1<<0)
294    #define XVID_ZONE_WEIGHT (1<<1)
295    
296          typedef struct          typedef struct
297          {          {
298                  int general;          int frame;
299                  void *bitstream;          int mode;
300                  int length;          int increment;
301            int base;
302                  void *image;  } xvid_enc_zone_t;
303                  int stride;  
304                  int colorspace;  
305          }  /*----------------------------------------------------------------------------
306          XVID_DEC_FRAME;   * xvid_enc_stats_t structure
307     *
308     * Used in:
309     *  - xvid_plg_data_t structure
310     *  - optional parameter in xvid_encore() function
311     *
312     * .coding_type = XVID_TYPE_NOTHING if the stats are not given
313     *--------------------------------------------------------------------------*/
314    
315    typedef struct {
316            int version;
317    
318            /* encoding parameters */
319            int type;      /* [out] coding type */
320            int quant;     /* [out] frame quantizer */
321            int vol_flags; /* [out] vol flags (see above) */
322            int vop_flags; /* [out] vop flags (see above) */
323    
324            /* bitrate */
325            int length;    /* [out] frame length */
326    
327            int hlength;   /* [out] header length (bytes) */
328            int kblks;     /* [out] number of blocks compressed as Intra */
329            int mblks;     /* [out] number of blocks compressed as Inter */
330            int ublks;     /* [out] number of blocks marked as not_coded */
331    
332            int sse_y;     /* [out] Y plane's sse */
333            int sse_u;     /* [out] U plane's sse */
334            int sse_v;     /* [out] V plane's sse */
335    } xvid_enc_stats_t;
336    
337    /*****************************************************************************
338      xvid plugin system -- internals
339    
340      xvidcore will call XVID_PLG_INFO and XVID_PLG_CREATE during XVID_ENC_CREATE
341      before encoding each frame xvidcore will call XVID_PLG_BEFORE
342      after encoding each frame xvidcore will call XVID_PLG_AFTER
343      xvidcore will call XVID_PLG_DESTROY during XVID_ENC_DESTROY
344     ****************************************************************************/
345    
346    
347    #define XVID_PLG_CREATE  (1<<0)
348    #define XVID_PLG_DESTROY (1<<1)
349    #define XVID_PLG_INFO    (1<<2)
350    #define XVID_PLG_BEFORE  (1<<3)
351    #define XVID_PLG_FRAME   (1<<4)
352    #define XVID_PLG_AFTER   (1<<5)
353    
354    /* xvid_plg_info_t.flags */
355    #define XVID_REQORIGINAL (1<<0) /* plugin requires a copy of the original (uncompressed) image */
356    #define XVID_REQPSNR     (1<<1) /* plugin requires psnr between the uncompressed and compressed image*/
357    #define XVID_REQDQUANTS  (1<<2) /* plugin requires access to the dquant table */
358    
359    
         // This struct is used for per slice rendering  
360          typedef struct          typedef struct
361          {          {
362                  void *y,*u,*v;          int version;
363                  int stride_y, stride_u,stride_v;          int flags;   /* [in:opt] plugin flags */
364          } XVID_DEC_PICTURE;  } xvid_plg_info_t;
365    
366    
367  /*****************************************************************************  typedef struct
368   * Decoder entry point  {
369   ****************************************************************************/          int version;
370    
371  /* decoder options */          int num_zones;           /* [out] */
372  #define XVID_DEC_DECODE         0          xvid_enc_zone_t * zones; /* [out] */
 #define XVID_DEC_CREATE         1  
 #define XVID_DEC_DESTROY        2  
   
         int xvid_decore(void *handle,  
                                         int opt,  
                                         void *param1,  
                                         void *param2);  
373    
374            int width;               /* [out] */
375            int height;              /* [out] */
376            int mb_width;            /* [out] */
377            int mb_height;           /* [out] */
378            int fincr;               /* [out] */
379            int fbase;               /* [out] */
380    
381  /*****************************************************************************          void * param;            /* [out] */
382   * Encoder constants  } xvid_plg_create_t;
383   ****************************************************************************/  
384    
385    typedef struct
386    {
387            int version;
388    
389            int num_frames; /* [out] total frame encoded */
390    } xvid_plg_destroy_t;
391    
392    typedef struct
393    {
394            int version;
395    
396            xvid_enc_zone_t * zone; /* [out] current zone */
397    
398            int width;              /* [out] */
399            int height;             /* [out] */
400            int mb_width;           /* [out] */
401            int mb_height;          /* [out] */
402            int fincr;              /* [out] */
403            int fbase;              /* [out] */
404    
405  /* Flags for XVID_ENC_PARAM.global */          int min_quant[3];       /* [out] */
406  #define XVID_GLOBAL_PACKED              0x00000001      /* packed bitstream */          int max_quant[3];       /* [out] */
 #define XVID_GLOBAL_DX50BVOP    0x00000002      /* dx50 bvop compatibility */  
 #define XVID_GLOBAL_DEBUG               0x00000004      /* print debug info on each frame */  
 #define XVID_GLOBAL_REDUCED             0x04000000      /* reduced resolution vop enable */  
407    
408  #define XVID_GLOBAL_EXTRASTATS  0x00000200      /* generate extra statistics */          xvid_image_t reference; /* [out] -> [out] */
409            xvid_image_t current;   /* [out] -> [in,out] */
410            xvid_image_t original;  /* [out] after: points the original (uncompressed) copy of the current frame */
411            int frame_num;          /* [out] frame number */
412    
413            int type;               /* [in,out] */
414            int quant;              /* [in,out] */
415    
416  /* Flags for XVID_ENC_FRAME.general */          int * dquant;           /* [in,out]     pointer to diff quantizer table */
417  #define XVID_VALID_FLAGS                0x80000000          int dquant_stride;      /* [in,out]     diff quantizer stride */
418    
419  #define XVID_CUSTOM_QMATRIX             0x00000004      /* use custom quant matrix */          int vop_flags;          /* [in,out] */
420  #define XVID_H263QUANT                  0x00000010          int vol_flags;          /* [in,out] */
421  #define XVID_MPEGQUANT                  0x00000020          int motion_flags;       /* [in,out] */
 #define XVID_HALFPEL                    0x00000040      /* use halfpel interpolation */  
 #define XVID_QUARTERPEL                 0x02000000  
 #define XVID_ADAPTIVEQUANT              0x00000080  
 #define XVID_LUMIMASKING                0x00000100  
422    
423  #define XVID_INTERLACING                0x00000400      /* enable interlaced encoding */  /* Deprecated, use the stats field instead.
424  #define XVID_TOPFIELDFIRST              0x00000800      /* set top-field-first flag  */   * Will disapear before 1.0 */
425  #define XVID_ALTERNATESCAN              0x00001000      /* set alternate vertical scan flag */          int length;             /* [out] after: length of encoded frame */
426            int kblks;              /* [out] number of blocks compressed as Intra */
427            int mblks;              /* [out] number of blocks compressed as Inter */
428            int ublks;              /* [out] number of blocks marked not_coded */
429            int sse_y;              /* [out] Y plane's sse */
430            int sse_u;              /* [out] U plane's sse */
431            int sse_v;              /* [out] V plane's sse */
432    /* End of duplicated data, kept only for binary compatibility */
433    
434  #define XVID_HINTEDME_GET               0x00002000      /* receive mv hint data from core (1st pass) */          int bquant_ratio;       /* [in] */
435  #define XVID_HINTEDME_SET               0x00004000      /* send mv hint data to core (2nd pass) */          int bquant_offset;      /* [in] */
436    
437  #define XVID_INTER4V                    0x00008000          xvid_enc_stats_t stats; /* [out] frame statistics */
438    } xvid_plg_data_t;
439    
440  #define XVID_ME_ZERO                    0x00010000  /*****************************************************************************
441  #define XVID_ME_LOGARITHMIC             0x00020000    xvid plugin system -- external
 #define XVID_ME_FULLSEARCH              0x00040000  
 #define XVID_ME_PMVFAST                 0x00080000  
 #define XVID_ME_EPZS                    0x00100000  
442    
443  #define XVID_CHROMAOPT                  0x00200000      /* enable chroma optimization pre-filter */    the application passes xvid an array of "xvid_plugin_t" at XVID_ENC_CREATE. the array
444      indicates the plugin function pointer and plugin-specific data.
445      xvidcore handles the rest. example:
446    
447  #define XVID_GREYSCALE                  0x01000000      /* enable greyscale only mode (even for */    xvid_enc_create_t create;
448                                                                                          /* color input material chroma is ignored) */    xvid_enc_plugin_t plugins[2];
449    
450  #define XVID_GMC                                0x10000000    plugins[0].func = xvid_psnr_func;
451  #define XVID_GMC_TRANSLATIONAL  0x20000000    plugins[0].param = NULL;
452      plugins[1].func = xvid_cbr_func;
453      plugins[1].param = &cbr_data;
454    
455  #define XVID_REDUCED                    0x04000000      /* reduced resolution vop */    create.num_plugins = 2;
456  #define XVID_HQACPRED                   0x08000000      /* 20030209: high quality ac prediction */    create.plugins = plugins;
457    
458  #define XVID_EXTRASTATS                 0x00000200  /* generate extra statistics */   ****************************************************************************/
459    
460  #define XVID_MODEDECISION_BITS  0x00400000      /* enable DCT-ME and use it for mode decision */  typedef int (xvid_plugin_func)(void * handle, int opt, void * param1, void * param2);
461    
462    typedef struct
463    {
464            xvid_plugin_func * func;
465            void * param;
466    } xvid_enc_plugin_t;
467    
 /* Flags for XVID_ENC_FRAME.motion */  
468    
469  #define PMV_ADVANCEDDIAMOND16   0x00008000      /* use advdiamonds instead of diamonds as search pattern */  extern xvid_plugin_func xvid_plugin_single;   /* single-pass rate control */
470  #define PMV_USESQUARES16                0x00800000      /* use squares instead of diamonds as search pattern */  extern xvid_plugin_func xvid_plugin_2pass1;   /* two-pass rate control: first pass */
471    extern xvid_plugin_func xvid_plugin_2pass2;   /* two-pass rate control: second pass */
472    
473  #define PMV_HALFPELREFINE16     0x00020000  extern xvid_plugin_func xvid_plugin_lumimasking;  /* lumimasking */
 #define PMV_HALFPELREFINE8              0x02000000  
474    
475  #define PMV_QUARTERPELREFINE16  0x00040000  extern xvid_plugin_func xvid_plugin_psnr;       /* write psnr values to stdout */
476  #define PMV_QUARTERPELREFINE8   0x04000000  extern xvid_plugin_func xvid_plugin_dump;       /* dump before and after yuvpgms */
477    
 #define PMV_EXTSEARCH16                 0x00080000      /* extend PMV by more searches */  
478    
479  #define PMV_EXTSEARCH8                  0x08000000      /* use diamond/square for extended 8x8 search */  /* single pass rate control
480  #define PMV_ADVANCEDDIAMOND8    0x00004000      /* use advdiamond for PMV_EXTSEARCH8 */   * CBR and Constant quantizer modes */
481  #define PMV_USESQUARES8                 0x80000000      /* use square for PMV_EXTSEARCH8 */  typedef struct
482    {
483            int version;
484    
485  #define PMV_CHROMA16                    0x00100000      /* also use chroma for P_VOP/S_VOP ME */          int bitrate;               /* [in] bits per second */
486  #define PMV_CHROMA8                             0x10000000      /* also use chroma for B_VOP ME */          int reaction_delay_factor; /* [in] */
487            int averaging_period;      /* [in] */
488            int buffer;                /* [in] */
489    } xvid_plugin_single_t;
490    
 /* Motion search using DCT. use XVID_MODEDECISION_DCT to enable */  
 #define HALFPELREFINE16_BITS    0x00000100      /* perform DCT-based halfpel refinement */  
 #define HALFPELREFINE8_BITS             0x00000200      /* perform DCT-based halfpel refinement for 8x8 mode */  
 #define QUARTERPELREFINE16_BITS 0x00000400      /* perform DCT-based qpel refinement */  
 #define QUARTERPELREFINE8_BITS  0x00000800      /* perform DCT-based qpel refinement for 8x8 mode */  
491    
492  #define EXTSEARCH_BITS                  0x00001000      /* perform DCT-based search using square pattern */  typedef struct {
493                                                                                          /* enable PMV_EXTSEARCH8 to do this in 8x8 search as well */          int version;
 #define CHECKPREDICTION_BITS    0x00002000      /* always check vector equal to prediction */  
494    
495            char * filename;
496    } xvid_plugin_2pass1_t;
497    
 /* note: old and deprecated - or never implemented */  
498    
499  /* only for compatability with old encoders */  #define XVID_PAYBACK_BIAS 0 /* payback with bias */
500    #define XVID_PAYBACK_PROP 1 /* payback proportionally */
501    
502  #define PMV_EARLYSTOP16                 0x00  typedef struct {
503  #define PMV_EARLYSTOP8                  0x00          int version;
 #define PMV_QUICKSTOP16                 0x00  
 #define PMV_QUICKSTOP8                  0x00  
504    
505  #define PMV_HALFPELDIAMOND16    0x00          int bitrate;                  /* [in] bits per second */
506  #define PMV_HALFPELDIAMOND8     0x00          char * filename;              /* [in] first pass stats filename */
507    
508  #define PMV_UNRESTRICTED16      0x00200000      /* unrestricted ME, not implemented */          int keyframe_boost;           /* [in] keyframe boost percentage: [0..100] */
509  #define PMV_OVERLAPPING16       0x00400000      /* overlapping ME, not implemented */          int curve_compression_high;   /* [in] percentage of compression performed on the high part of the curve (above average) */
510  #define PMV_UNRESTRICTED8       0x20000000      /* unrestricted ME, not implemented */          int curve_compression_low;    /* [in] percentage of compression performed on the low  part of the curve (below average) */
511  #define PMV_OVERLAPPING8                0x40000000      /* overlapping ME, not implemented */          int overflow_control_strength;/* [in] Payback delay expressed in number of frames */
512            int max_overflow_improvement; /* [in] percentage of allowed range for a frame that gets bigger because of overflow bonus */
513            int max_overflow_degradation; /* [in] percentage of allowed range for a frame that gets smaller because of overflow penalty */
514    
515  #define XVID_ME_COLOUR                  0x00    /* this has been converted to PMV_CHROMA[16/8] */          int kfreduction;              /* [in] maximum bitrate reduction applied to an iframe under the kfthreshold distance limit */
516            int kfthreshold;              /* [in] if an iframe is closer to the next iframe than this distance, a quantity of bits
517                                                                       *      is substracted from its bit allocation. The reduction is computed as multiples of
518                                                                       *      kfreduction/kthreshold. It reaches kfreduction when the distance == kfthreshold,
519                                                                       *      0 for 1<distance<kfthreshold */
520    
521            int container_frame_overhead; /* [in] How many bytes the controller has to compensate per frame due to container format overhead */
522    }xvid_plugin_2pass2_t;
523    
524  /*****************************************************************************  /*****************************************************************************
525   * Encoder structures   *                             ENCODER API
526   ****************************************************************************/   ****************************************************************************/
527    
528          typedef struct  /*----------------------------------------------------------------------------
529          {   * Encoder operations
530                  int width, height;   *--------------------------------------------------------------------------*/
531                  int fincr, fbase;               /* frame increment, fbase. each frame = "fincr/fbase" seconds */  
532                  int rc_bitrate;                 /* the bitrate of the target encoded stream, in bits/second */  #define XVID_ENC_CREATE  0 /* create encoder instance; returns 0 on success */
533                  int rc_reaction_delay_factor;   /* how fast the rate control reacts - lower values are faster */  #define XVID_ENC_DESTROY 1 /* destroy encoder instance; returns 0 on success */
534                  int rc_averaging_period;        /* as above */  #define XVID_ENC_ENCODE  2 /* encode a frame: returns number of ouput bytes
535                  int rc_buffer;                  /* as above */                              * 0 means this frame should not be written (ie. encoder lag) */
536                  int max_quantizer;              /* the upper limit of the quantizer */  
537                  int min_quantizer;              /* the lower limit of the quantizer */  
538                  int max_key_interval;   /* the maximum interval between key frames */  /*----------------------------------------------------------------------------
539  #ifdef _SMP   * Encoder entry point
540                  int num_threads;                /* number of threads */   *--------------------------------------------------------------------------*/
541  #endif  
542                  int global;                             /* global/debug options */  extern int xvid_encore(void *handle, int opt, void *param1, void *param2);
543                  int max_bframes;                /* max sequential bframes (0=disable bframes) */  
544                  int bquant_ratio;               /* bframe quantizer multipier (percentage).  /* Quick API reference
545                                                                   * used only when bquant < 1   *
546                                                                   * eg. 200 = x2 multiplier   * XVID_ENC_CREATE operation
547                                                                   * quant = ((past_quant + future_quant) * bquant_ratio)/200   *  - handle: ignored
548     *  - opt: XVID_ENC_CREATE
549     *  - param1: address of a xvid_enc_create_t structure
550     *  - param2: ignored
551     *
552     * XVID_ENC_ENCODE operation
553     *  - handle: an instance returned by a CREATE op
554     *  - opt: XVID_ENC_ENCODE
555     *  - param1: address of a xvid_enc_frame_t structure
556     *  - param2: address of a xvid_enc_stats_t structure (optional)
557     *            its return value is asynchronous to what is written to the buffer
558     *            depending on the delay introduced by bvop use. It's display
559     *            ordered.
560     *
561     * XVID_ENC_DESTROY operation
562     *  - handle: an instance returned by a CREATE op
563     *  - opt: XVID_ENC_DESTROY
564     *  - param1: ignored
565     *  - param2: ignored
566                                                                   */                                                                   */
                 int bquant_offset;              /* bquant += bquant_offset */  
                 int frame_drop_ratio;   /* frame dropping: 0=drop none... 100=drop all */  
                 void *handle;                   /* [out] encoder instance handle */  
         }  
         XVID_ENC_PARAM;  
567    
         typedef struct  
         {  
                 int x;  
                 int y;  
         }  
         VECTOR;  
568    
569          typedef struct  /*----------------------------------------------------------------------------
570          {   * "Global" flags
571                  int mode;                               /* macroblock mode */   *
572                  VECTOR mvs[4];   * These flags are used for xvid_enc_create_t->global field during instance
573          }   * creation (operation XVID_ENC_CREATE)
574          MVBLOCKHINT;   *--------------------------------------------------------------------------*/
575    
576    #define XVID_GLOBAL_PACKED            (1<<0) /* packed bitstream */
577    #define XVID_GLOBAL_CLOSED_GOP        (1<<1) /* closed_gop:     was DX50BVOP dx50 bvop compatibility */
578    #define XVID_GLOBAL_EXTRASTATS_ENABLE (1<<2)
579    #if 0
580    #define XVID_GLOBAL_VOL_AT_IVOP       (1<<3) /* write vol at every ivop: WIN32/divx compatibility */
581    #define XVID_GLOBAL_FORCE_VOL         (1<<4) /* when vol-based parameters are changed, insert an ivop NOT recommended */
582    #endif
583    
         typedef struct  
         {  
                 int intra;                              /* frame intra choice */  
                 int fcode;                              /* frame fcode */  
                 MVBLOCKHINT *block;             /* caller-allocated array of block hints (mb_width * mb_height) */  
         }  
         MVFRAMEHINT;  
584    
585          typedef struct  /*----------------------------------------------------------------------------
586          {   * "VOL" flags
587                  int rawhints;                   /* if set, use MVFRAMEHINT, else use compressed buffer */   *
588     * These flags are used for xvid_enc_frame_t->vol_flags field during frame
589     * encoding (operation XVID_ENC_ENCODE)
590     *--------------------------------------------------------------------------*/
591    
592    #define XVID_VOL_MPEGQUANT      (1<<0) /* enable MPEG type quantization */
593    #define XVID_VOL_EXTRASTATS     (1<<1) /* enable plane sse stats */
594    #define XVID_VOL_QUARTERPEL     (1<<2) /* enable quarterpel: frames will encoded as quarterpel */
595    #define XVID_VOL_GMC            (1<<3) /* enable GMC; frames will be checked for gmc suitability */
596    #define XVID_VOL_REDUCED_ENABLE (1<<4) /* enable reduced resolution vops: frames will be checked for rrv suitability */
597    #define XVID_VOL_INTERLACING    (1<<5) /* enable interlaced encoding */
598    
599    
600    /*----------------------------------------------------------------------------
601     * "VOP" flags
602     *
603     * These flags are used for xvid_enc_frame_t->vop_flags field during frame
604     * encoding (operation XVID_ENC_ENCODE)
605     *--------------------------------------------------------------------------*/
606    
607    /* Always valid */
608    #define XVID_VOP_DEBUG                (1<< 0) /* print debug messages in frames */
609    #define XVID_VOP_HALFPEL              (1<< 1) /* use halfpel interpolation */
610    #define XVID_VOP_INTER4V              (1<< 2) /* use 4 motion vectors per MB */
611    #define XVID_VOP_TRELLISQUANT         (1<< 3) /* use trellis based R-D "optimal" quantization */
612    #define XVID_VOP_CHROMAOPT            (1<< 4) /* enable chroma optimization pre-filter */
613    #define XVID_VOP_CARTOON              (1<< 5) /* use 'cartoon mode' */
614    #define XVID_VOP_GREYSCALE            (1<< 6) /* enable greyscale only mode (even for  color input material chroma is ignored) */
615    #define XVID_VOP_HQACPRED             (1<< 7) /* high quality ac prediction */
616    #define XVID_VOP_MODEDECISION_RD      (1<< 8) /* enable DCT-ME and use it for mode decision */
617    #define XVID_VOP_FAST_MODEDECISION_RD (1<<12) /* use simplified R-D mode decision */
618    
619    /* Only valid for vol_flags|=XVID_VOL_INTERLACING */
620    #define XVID_VOP_TOPFIELDFIRST        (1<< 9) /* set top-field-first flag  */
621    #define XVID_VOP_ALTERNATESCAN        (1<<10) /* set alternate vertical scan flag */
622    
623    /* only valid for vol_flags|=XVID_VOL_REDUCED_ENABLED */
624    #define XVID_VOP_REDUCED              (1<<11) /* reduced resolution vop */
625    
626    
627    /*----------------------------------------------------------------------------
628     * "Motion" flags
629     *
630     * These flags are used for xvid_enc_frame_t->motion field during frame
631     * encoding (operation XVID_ENC_ENCODE)
632     *--------------------------------------------------------------------------*/
633    
634    /* Motion Estimation Search Patterns */
635    #define XVID_ME_ADVANCEDDIAMOND16     (1<< 0) /* use advdiamonds instead of diamonds as search pattern */
636    #define XVID_ME_ADVANCEDDIAMOND8      (1<< 1) /* use advdiamond for XVID_ME_EXTSEARCH8 */
637    #define XVID_ME_USESQUARES16          (1<< 2) /* use squares instead of diamonds as search pattern */
638    #define XVID_ME_USESQUARES8           (1<< 3) /* use square for XVID_ME_EXTSEARCH8 */
639    
640    /* SAD operator based flags */
641    #define XVID_ME_HALFPELREFINE16       (1<< 4)
642    #define XVID_ME_HALFPELREFINE8        (1<< 6)
643    #define XVID_ME_QUARTERPELREFINE16    (1<< 7)
644    #define XVID_ME_QUARTERPELREFINE8     (1<< 8)
645    #define XVID_ME_GME_REFINE            (1<< 9)
646    #define XVID_ME_EXTSEARCH16           (1<<10) /* extend PMV by more searches */
647    #define XVID_ME_EXTSEARCH8            (1<<11) /* use diamond/square for extended 8x8 search */
648    #define XVID_ME_CHROMA_PVOP           (1<<12) /* also use chroma for P_VOP/S_VOP ME */
649    #define XVID_ME_CHROMA_BVOP           (1<<13) /* also use chroma for B_VOP ME */
650    #define XVID_ME_FASTREFINE16          (1<<25) /* use low-complexity refinement functions */
651    #define XVID_ME_FASTREFINE8           (1<<29) /* low-complexity 8x8 sub-block refinement */
652    
653    /* Rate Distortion based flags
654     * Valid when XVID_VOP_MODEDECISION_RD is enabled */
655    #define XVID_ME_HALFPELREFINE16_RD    (1<<14) /* perform RD-based halfpel refinement */
656    #define XVID_ME_HALFPELREFINE8_RD     (1<<15) /* perform RD-based halfpel refinement for 8x8 mode */
657    #define XVID_ME_QUARTERPELREFINE16_RD (1<<16) /* perform RD-based qpel refinement */
658    #define XVID_ME_QUARTERPELREFINE8_RD  (1<<17) /* perform RD-based qpel refinement for 8x8 mode */
659    #define XVID_ME_EXTSEARCH_RD          (1<<18) /* perform RD-based search using square pattern enable XVID_ME_EXTSEARCH8 to do this in 8x8 search as well */
660    #define XVID_ME_CHECKPREDICTION_RD    (1<<19) /* always check vector equal to prediction */
661    
662    /* Other */
663    #define XVID_ME_DETECT_STATIC_MOTION  (1<<24) /* speed-up ME by detecting stationary scenes */
664    #define XVID_ME_SKIP_DELTASEARCH      (1<<26) /* speed-up by skipping b-frame delta search */
665    #define XVID_ME_FAST_MODEINTERPOLATE  (1<<27) /* speed-up by partly skipping interpolate mode */
666    #define XVID_ME_BFRAME_EARLYSTOP      (1<<28) /* speed-up by early exiting b-search */
667    
668    /* Unused */
669    #define XVID_ME_UNRESTRICTED16        (1<<20) /* unrestricted ME, not implemented */
670    #define XVID_ME_OVERLAPPING16         (1<<21) /* overlapping ME, not implemented */
671    #define XVID_ME_UNRESTRICTED8         (1<<22) /* unrestricted ME, not implemented */
672    #define XVID_ME_OVERLAPPING8          (1<<23) /* overlapping ME, not implemented */
673    
674    
675    /*----------------------------------------------------------------------------
676     * xvid_enc_create_t structure definition
677     *
678     * This structure is passed as param1 during an instance creation (operation
679     * XVID_ENC_CREATE)
680     *--------------------------------------------------------------------------*/
681    
682    typedef struct {
683            int version;
684    
685            int profile;                 /* [in] profile@level; refer to XVID_PROFILE_xxx */
686            int width;                   /* [in] frame dimensions; width, pixel units */
687            int height;                  /* [in] frame dimensions; height, pixel units */
688    
689            int num_zones;               /* [in:opt] number of bitrate zones */
690            xvid_enc_zone_t * zones;     /*          ^^ zone array */
691    
692            int num_plugins;             /* [in:opt] number of plugins */
693            xvid_enc_plugin_t * plugins; /*          ^^ plugin array */
694    
695            int num_threads;             /* [in:opt] number of threads */
696            int max_bframes;             /* [in:opt] max sequential bframes (0=disable bframes) */
697    
698            int global;                  /* [in:opt] global flags; controls encoding behavior */
699    
700            /* --- vol-based stuff; included here for convenience */
701            int fincr;                   /* [in:opt] framerate increment; set to zero for variable framerate */
702            int fbase;                   /* [in] framerate base frame_duration = fincr/fbase seconds*/
703        /* ---------------------------------------------- */
704    
705            /* --- vop-based; included here for convenience */
706            int max_key_interval;        /* [in:opt] the maximum interval between key frames */
707    
708            int frame_drop_ratio;        /* [in:opt] frame dropping: 0=drop none... 100=drop all */
709    
710            int bquant_ratio;            /* [in:opt] bframe quantizer multipier/offeset; used to decide bframes quant when bquant==-1 */
711            int bquant_offset;           /* bquant = (avg(past_ref_quant,future_ref_quant)*bquant_ratio + bquant_offset) / 100 */
712    
713            int min_quant[3];            /* [in:opt] */
714            int max_quant[3];            /* [in:opt] */
715            /* ---------------------------------------------- */
716    
717                  MVFRAMEHINT mvhint;          void *handle;                /* [out] encoder instance handle */
718                  void *hintstream;               /* compressed hint buffer */  } xvid_enc_create_t;
                 int hintlength;                 /* length of buffer (bytes) */  
         }  
         HINTINFO;  
719    
         typedef struct  
         {  
                 int general;                    /* [in] general options */  
                 int motion;                             /* [in] ME options */  
                 void *bitstream;                /* [in] bitstream ptr */  
                 int length;                             /* [out] bitstream length (bytes) */  
720    
721                  void *image;                    /* [in] image ptr */  /*----------------------------------------------------------------------------
722                  int stride;   * xvid_enc_frame_t structure definition
723                  int colorspace;                 /* [in] source colorspace */   *
724     * This structure is passed as param1 during a frame encoding (operation
725                  unsigned char *quant_intra_matrix;      // [in] custom intra qmatrix */   * XVID_ENC_ENCODE)
726                  unsigned char *quant_inter_matrix;      // [in] custom inter qmatrix */   *--------------------------------------------------------------------------*/
                 int quant;                              /* [in] frame quantizer (vbr) */  
                 int intra;                              /* [in] force intra frame (vbr only)  
                                                                  * [out] intra state  
                                                                  */  
                 HINTINFO hint;                  /* [in/out] mv hint information */  
727    
728                  int bquant;                             /* [in] bframe quantizer */  /* out value for the frame structure->type field
729     * unlike stats output in param2, this field is not asynchronous and tells
730     * the client app, if the frame written into the stream buffer is an ivop
731     * usually used for indexing purpose in the container */
732    #define XVID_KEYFRAME (1<<1)
733    
734          }  /* The structure */
735          XVID_ENC_FRAME;  typedef struct {
736            int version;
737    
738            /* VOL related stuff
739             * unless XVID_FORCEVOL is set, the encoder will not react to any changes
740             * here until the next VOL (keyframe). */
741    
742          typedef struct          int vol_flags;                     /* [in] vol flags */
743          {          unsigned char *quant_intra_matrix; /* [in:opt] custom intra qmatrix */
744                  int quant;                              /* [out] frame quantizer */          unsigned char *quant_inter_matrix; /* [in:opt] custom inter qmatrix */
                 int hlength;                    /* [out] header length (bytes) */  
                 int kblks, mblks, ublks;        /* [out] */  
                 long sse_y;                             /* [out] SSE of Y */  
                 long sse_u;                             /* [out] SSE of Cb */  
                 long sse_v;                             /* [out] SSE of Cr */  
         }  
         XVID_ENC_STATS;  
745    
746            int par;                           /* [in:opt] pixel aspect ratio (refer to XVID_PAR_xxx above) */
747            int par_width;                     /* [in:opt] aspect ratio width */
748            int par_height;                    /* [in:opt] aspect ratio height */
749    
750  /*****************************************************************************          /* Other fields that can change on a frame base */
751   * Encoder entry point  
752   ****************************************************************************/          int fincr;                         /* [in:opt] framerate increment, for variable framerate only */
753            int vop_flags;                     /* [in] (general)vop-based flags */
754            int motion;                        /* [in] ME options */
755    
756            xvid_image_t input;                /* [in] input image (read from) */
757    
758            int type;                          /* [in:opt] coding type */
759            int quant;                         /* [in] frame quantizer; if <=0, automatic (ratecontrol) */
760            int bframe_threshold;
761    
762  /* Encoder options */          void *bitstream;                   /* [in:opt] bitstream ptr (written to)*/
763  #define XVID_ENC_ENCODE         0          int length;                        /* [in:opt] bitstream length (bytes) */
 #define XVID_ENC_CREATE         1  
 #define XVID_ENC_DESTROY        2  
   
         int xvid_encore(void *handle,  
                                         int opt,  
                                         void *param1,  
                                         void *param2);  
764    
765            int out_flags;                     /* [out] bitstream output flags */
766    } xvid_enc_frame_t;
767    
768  #ifdef __cplusplus  #ifdef __cplusplus
769  }  }

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