1 // Avisynth C Interface Version 0.20
2 // Copyright 2003 Kevin Atkinson
4 // This program is free software; you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation; either version 2 of the License, or
7 // (at your option) any later version.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
17 // http://www.gnu.org/copyleft/gpl.html .
19 // As a special exception, I give you permission to link to the
20 // Avisynth C interface with independent modules that communicate with
21 // the Avisynth C interface solely through the interfaces defined in
22 // avisynth_c.h, regardless of the license terms of these independent
23 // modules, and to copy and distribute the resulting combined work
24 // under terms of your choice, provided that every copy of the
25 // combined work is accompanied by a complete copy of the source code
26 // of the Avisynth C interface and Avisynth itself (with the version
27 // used to produce the combined work), being distributed under the
28 // terms of the GNU General Public License plus this exception. An
29 // independent module is a module which is not derived from or based
30 // on Avisynth C Interface, such as 3rd-party filters, import and
31 // export plugins, or graphical user interfaces.
33 #ifndef __AVXSYNTH_C__
34 #define __AVXSYNTH_C__
36 #include "windowsPorts/windows2linux.h"
40 # define EXTERN_C extern "C"
45 #define AVSC_USE_STDCALL 1
47 #ifndef AVSC_USE_STDCALL
48 # define AVSC_CC __cdecl
50 # define AVSC_CC __stdcall
53 #define AVSC_INLINE static __inline
55 #ifdef AVISYNTH_C_EXPORTS
56 # define AVSC_EXPORT EXTERN_C
57 # define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
59 # define AVSC_EXPORT EXTERN_C __declspec(dllexport)
60 # ifndef AVSC_NO_DECLSPEC
61 # define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
63 # define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
68 typedef long long int INT64;
70 typedef __int64 INT64;
74 /////////////////////////////////////////////////////////////////////
79 #ifndef __AVXSYNTH_H__
80 enum { AVISYNTH_INTERFACE_VERSION = 3 };
83 enum {AVS_SAMPLE_INT8 = 1<<0,
84 AVS_SAMPLE_INT16 = 1<<1,
85 AVS_SAMPLE_INT24 = 1<<2,
86 AVS_SAMPLE_INT32 = 1<<3,
87 AVS_SAMPLE_FLOAT = 1<<4};
89 enum {AVS_PLANAR_Y=1<<0,
92 AVS_PLANAR_ALIGNED=1<<3,
93 AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
94 AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
95 AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED};
97 // Colorspace properties.
98 enum {AVS_CS_BGR = 1<<28,
100 AVS_CS_INTERLEAVED = 1<<30,
101 AVS_CS_PLANAR = 1<<31};
103 // Specific colorformats
106 AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
107 AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
108 AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
109 AVS_CS_YV12 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR, // y-v-u, planar
110 AVS_CS_I420 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR, // y-u-v, planar
111 AVS_CS_IYUV = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR // same as above
117 AVS_IT_FIELDBASED = 1<<2};
121 AVS_FILTER_INPUT_COLORSPACE=2,
122 AVS_FILTER_OUTPUT_TYPE=9,
125 AVS_FILTER_VERSION=6,
127 AVS_FILTER_ARGS_INFO=8,
128 AVS_FILTER_ARGS_DESCRIPTION=10,
129 AVS_FILTER_DESCRIPTION=11};
132 AVS_FILTER_TYPE_AUDIO=1,
133 AVS_FILTER_TYPE_VIDEO=2,
134 AVS_FILTER_OUTPUT_TYPE_SAME=3,
135 AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
142 AVS_CACHE_AUDIO_NONE=4,
143 AVS_CACHE_AUDIO_AUTO=5
146 #define AVS_FRAME_ALIGN 16
148 typedef struct AVS_Clip AVS_Clip;
149 typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
151 /////////////////////////////////////////////////////////////////////
156 // AVS_VideoInfo is layed out identicly to VideoInfo
157 typedef struct AVS_VideoInfo {
158 int width, height; // width=0 means no video
159 unsigned fps_numerator, fps_denominator;
164 int audio_samples_per_second; // 0 means no audio
166 INT64 num_audio_samples;
169 // Imagetype properties
174 // useful functions of the above
175 AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
176 { return (p->width!=0); }
178 AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
179 { return (p->audio_samples_per_second!=0); }
181 AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
182 { return !!(p->pixel_type&AVS_CS_BGR); }
184 AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
185 { return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
187 AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
188 { return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
190 AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
191 { return !!(p->pixel_type&AVS_CS_YUV ); }
193 AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
194 { return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
196 AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
197 { return ((p->pixel_type & AVS_CS_YV12) == AVS_CS_YV12)||((p->pixel_type & AVS_CS_I420) == AVS_CS_I420); }
199 AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space)
200 { return ((p->pixel_type & c_space) == c_space); }
202 AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
203 { return ((p->pixel_type & property)==property ); }
205 AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
206 { return !!(p->pixel_type & AVS_CS_PLANAR); }
208 AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
209 { return !!(p->image_type & AVS_IT_FIELDBASED); }
211 AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
212 { return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
214 AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
215 { return !!(p->image_type & AVS_IT_BFF); }
217 AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
218 { return !!(p->image_type & AVS_IT_TFF); }
220 AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p)
222 switch (p->pixel_type) {
223 case AVS_CS_BGR24: return 24;
224 case AVS_CS_BGR32: return 32;
225 case AVS_CS_YUY2: return 16;
227 case AVS_CS_I420: return 12;
231 AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels)
232 { return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes
234 AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p)
235 { return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images
237 AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi)
238 { if (avs_is_planar(vi)) {int p = vi->height * ((avs_row_size(vi)+3) & ~3); p+=p>>1; return p; } return vi->height * ((avs_row_size(vi)+3) & ~3); }
240 AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
241 { return p->audio_samples_per_second; }
244 AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
246 switch (p->sample_type) {
247 case AVS_SAMPLE_INT8: return sizeof(signed char);
248 case AVS_SAMPLE_INT16: return sizeof(signed short);
249 case AVS_SAMPLE_INT24: return 3;
250 case AVS_SAMPLE_INT32: return sizeof(signed int);
251 case AVS_SAMPLE_FLOAT: return sizeof(float);
255 AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
256 { return p->nchannels*avs_bytes_per_channel_sample(p);}
258 AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
259 { return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
261 AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
262 { return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
264 AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
265 { return bytes / avs_bytes_per_audio_sample(p); }
267 AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
268 { return samples * avs_bytes_per_audio_sample(p); }
270 AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
271 { return p->nchannels; }
273 AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
274 { return p->sample_type;}
277 AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
278 { p->image_type|=property; }
280 AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
281 { p->image_type&=~property; }
283 AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
284 { if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
286 AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
288 unsigned x=numerator, y=denominator;
289 while (y) { // find gcd
290 unsigned t = x%y; x = y; y = t;
292 p->fps_numerator = numerator/x;
293 p->fps_denominator = denominator/x;
296 AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
298 return (x->pixel_type == y->pixel_type)
299 || (avs_is_yv12(x) && avs_is_yv12(y));
302 /////////////////////////////////////////////////////////////////////
307 // VideoFrameBuffer holds information about a memory block which is used
308 // for video data. For efficiency, instances of this class are not deleted
309 // when the refcount reaches zero; instead they're stored in a linked list
310 // to be reused. The instances are deleted when the corresponding AVS
313 // AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
314 // DO NOT USE THIS STRUCTURE DIRECTLY
315 typedef struct AVS_VideoFrameBuffer {
316 unsigned char * data;
318 // sequence_number is incremented every time the buffer is changed, so
319 // that stale views can tell they're no longer valid.
320 long sequence_number;
323 } AVS_VideoFrameBuffer;
325 // VideoFrame holds a "window" into a VideoFrameBuffer.
327 // AVS_VideoFrame is layed out identicly to IVideoFrame
328 // DO NOT USE THIS STRUCTURE DIRECTLY
329 typedef struct AVS_VideoFrame {
331 AVS_VideoFrameBuffer * vfb;
332 int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
335 // Access functions for AVS_VideoFrame
336 AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
339 AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) {
341 case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;}
344 AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
345 return p->row_size; }
347 AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) {
350 case AVS_PLANAR_U: case AVS_PLANAR_V:
351 if (p->pitchUV) return p->row_size>>1;
353 case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
355 r = ((p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)) )>>1; // Aligned rowsize
358 return p->row_size>>1;
360 case AVS_PLANAR_Y_ALIGNED:
361 r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
369 AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
372 AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) {
374 case AVS_PLANAR_U: case AVS_PLANAR_V:
375 if (p->pitchUV) return p->height>>1;
380 AVSC_INLINE const unsigned char* avs_get_read_ptr(const AVS_VideoFrame * p) {
381 return p->vfb->data + p->offset;}
383 AVSC_INLINE const unsigned char* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane)
386 case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
387 case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
388 default: return p->vfb->data + p->offset;}
391 AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) {
392 return (p->refcount == 1 && p->vfb->refcount == 1);}
394 AVSC_INLINE unsigned char* avs_get_write_ptr(const AVS_VideoFrame * p)
396 if (avs_is_writable(p)) {
397 ++p->vfb->sequence_number;
398 return p->vfb->data + p->offset;
403 AVSC_INLINE unsigned char* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane)
405 if (plane==AVS_PLANAR_Y && avs_is_writable(p)) {
406 ++p->vfb->sequence_number;
407 return p->vfb->data + p->offset;
408 } else if (plane==AVS_PLANAR_Y) {
412 case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
413 case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
414 default: return p->vfb->data + p->offset;
419 #if defined __cplusplus
422 #endif // __cplusplus
423 AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
424 // makes a shallow copy of a video frame
425 AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
426 #if defined __cplusplus
428 #endif // __cplusplus
430 #ifndef AVSC_NO_DECLSPEC
431 AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
432 {avs_release_video_frame(f);}
433 AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
434 {return avs_copy_video_frame(f);}
437 /////////////////////////////////////////////////////////////////////
442 // Treat AVS_Value as a fat pointer. That is use avs_copy_value
443 // and avs_release_value appropiaty as you would if AVS_Value was
446 // To maintain source code compatibility with future versions of the
447 // avisynth_c API don't use the AVS_Value directly. Use the helper
450 // AVS_Value is layed out identicly to AVSValue
451 typedef struct AVS_Value AVS_Value;
453 short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
454 // for some function e'rror
457 void * clip; // do not use directly, use avs_take_clip
460 INT64 integer64; // match addition of __int64 to avxplugin.h
463 const AVS_Value * array;
467 // AVS_Value should be initilized with avs_void.
468 // Should also set to avs_void after the value is released
469 // with avs_copy_value. Consider it the equalvent of setting
471 static const AVS_Value avs_void = {'v'};
473 AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
474 AVSC_API(void, avs_release_value)(AVS_Value);
476 AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
477 AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
478 AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
479 AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
480 AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
481 AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
482 AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
483 AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
485 #if defined __cplusplus
488 #endif // __cplusplus
489 AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
490 AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
491 #if defined __cplusplus
493 #endif // __cplusplus
495 AVSC_INLINE int avs_as_bool(AVS_Value v)
496 { return v.d.boolean; }
497 AVSC_INLINE int avs_as_int(AVS_Value v)
498 { return v.d.integer; }
499 AVSC_INLINE const char * avs_as_string(AVS_Value v)
500 { return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
501 AVSC_INLINE double avs_as_float(AVS_Value v)
502 { return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
503 AVSC_INLINE const char * avs_as_error(AVS_Value v)
504 { return avs_is_error(v) ? v.d.string : 0; }
505 AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
506 { return v.d.array; }
507 AVSC_INLINE int avs_array_size(AVS_Value v)
508 { return avs_is_array(v) ? v.array_size : 1; }
509 AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
510 { return avs_is_array(v) ? v.d.array[index] : v; }
512 // only use these functions on am AVS_Value that does not already have
513 // an active value. Remember, treat AVS_Value as a fat pointer.
514 AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
515 { AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
516 AVSC_INLINE AVS_Value avs_new_value_int(int v0)
517 { AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
518 AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
519 { AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
520 AVSC_INLINE AVS_Value avs_new_value_float(float v0)
521 { AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
522 AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
523 { AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
524 #ifndef AVSC_NO_DECLSPEC
525 AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
526 { AVS_Value v; avs_set_to_clip(&v, v0); return v; }
528 AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
529 { AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
531 /////////////////////////////////////////////////////////////////////
535 #if defined __cplusplus
538 #endif // __cplusplus
539 AVSC_API(void, avs_release_clip)(AVS_Clip *);
540 AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
542 AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
544 AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
546 AVSC_API(int, avs_get_version)(AVS_Clip *);
548 AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
549 // The returned video frame must be released with avs_release_video_frame
551 AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
552 // return field parity if field_based, else parity of first field in frame
554 AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
555 INT64 start, INT64 count);
556 // start and count are in samples
558 AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
559 int cachehints, size_t frame_range);
560 #if defined __cplusplus
562 #endif // __cplusplus
564 // This is the callback type used by avs_add_function
565 typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
566 (AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
568 typedef struct AVS_FilterInfo AVS_FilterInfo;
569 struct AVS_FilterInfo
571 // these members should not be modified outside of the AVS_ApplyFunc callback
574 AVS_ScriptEnvironment * env;
575 AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
576 int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
577 int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
578 INT64 start, INT64 count);
579 int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
581 void (AVSC_CC * free_filter)(AVS_FilterInfo *);
583 // Should be set when ever there is an error to report.
584 // It is cleared before any of the above methods are called
586 // this is to store whatever and may be modified at will
590 // Create a new filter
591 // fi is set to point to the AVS_FilterInfo so that you can
592 // modify it once it is initilized.
593 // store_child should generally be set to true. If it is not
594 // set than ALL methods (the function pointers) must be defined
595 // If it is set than you do not need to worry about freeing the child
597 #if defined __cplusplus
600 #endif // __cplusplus
601 AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
602 AVS_FilterInfo * * fi,
603 AVS_Value child, int store_child);
604 #if defined __cplusplus
606 #endif // __cplusplus
609 /////////////////////////////////////////////////////////////////////
611 // AVS_ScriptEnvironment
614 // For GetCPUFlags. These are backwards-compatible with those in VirtualDub.
616 /* slowest CPU to support extension */
617 AVS_CPU_FORCE = 0x01, // N/A
618 AVS_CPU_FPU = 0x02, // 386/486DX
619 AVS_CPU_MMX = 0x04, // P55C, K6, PII
620 AVS_CPU_INTEGER_SSE = 0x08, // PIII, Athlon
621 AVS_CPU_SSE = 0x10, // PIII, Athlon XP/MP
622 AVS_CPU_SSE2 = 0x20, // PIV, Hammer
623 AVS_CPU_3DNOW = 0x40, // K6-2
624 AVS_CPU_3DNOW_EXT = 0x80, // Athlon
625 AVS_CPU_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2,
626 // which only Hammer will have anyway)
629 #if defined __cplusplus
632 #endif // __cplusplus
633 AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
635 AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
636 AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
638 AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
639 AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
641 AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, va_list val);
642 // note: val is really a va_list; I hope everyone typedefs va_list to a pointer
644 AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
645 const char * name, const char * params,
646 AVS_ApplyFunc apply, void * user_data);
648 AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
650 AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
651 AVS_Value args, const char** arg_names);
652 // The returned value must be be released with avs_release_value
654 AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
655 // The returned value must be be released with avs_release_value
657 AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
659 AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
661 //void avs_push_context(AVS_ScriptEnvironment *, int level=0);
662 //void avs_pop_context(AVS_ScriptEnvironment *);
664 AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
665 const AVS_VideoInfo * vi, int align);
666 // align should be at least 16
667 #if defined __cplusplus
669 #endif // __cplusplus
671 #ifndef AVSC_NO_DECLSPEC
673 AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
674 const AVS_VideoInfo * vi)
675 {return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
678 AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
679 const AVS_VideoInfo * vi)
680 {return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
683 #if defined __cplusplus
686 #endif // __cplusplus
687 AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
689 AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, unsigned char* dstp, int dst_pitch, const unsigned char* srcp, int src_pitch, int row_size, int height);
691 typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
692 AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
694 AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
695 // The returned video frame must be be released
697 AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
699 AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
701 // avisynth.dll exports this; it's a way to use it as a library, without
702 // writing an AVS script or without going through AVIFile.
703 AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
704 #if defined __cplusplus
706 #endif // __cplusplus
708 // this symbol is the entry point for the plugin and must
711 const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
714 #if defined __cplusplus
717 #endif // __cplusplus
718 AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
721 AVSC_API(AVS_VideoFrame *, avs_subframe_planar)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV);
722 // The returned video frame must be be released
723 #if defined __cplusplus
725 #endif // __cplusplus
727 #endif //__AVXSYNTH_C__