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., 51 Franklin Street, Fifth Floor, Boston,
17 // MA 02110-1301 USA, or visit
18 // http://www.gnu.org/copyleft/gpl.html .
20 // As a special exception, I give you permission to link to the
21 // Avisynth C interface with independent modules that communicate with
22 // the Avisynth C interface solely through the interfaces defined in
23 // avisynth_c.h, regardless of the license terms of these independent
24 // modules, and to copy and distribute the resulting combined work
25 // under terms of your choice, provided that every copy of the
26 // combined work is accompanied by a complete copy of the source code
27 // of the Avisynth C interface and Avisynth itself (with the version
28 // used to produce the combined work), being distributed under the
29 // terms of the GNU General Public License plus this exception. An
30 // independent module is a module which is not derived from or based
31 // on Avisynth C Interface, such as 3rd-party filters, import and
32 // export plugins, or graphical user interfaces.
34 #ifndef __AVXSYNTH_C__
35 #define __AVXSYNTH_C__
37 #include "windowsPorts/windows2linux.h"
41 # define EXTERN_C extern "C"
46 #define AVSC_USE_STDCALL 1
48 #ifndef AVSC_USE_STDCALL
49 # define AVSC_CC __cdecl
51 # define AVSC_CC __stdcall
54 #define AVSC_INLINE static __inline
56 #ifdef AVISYNTH_C_EXPORTS
57 # define AVSC_EXPORT EXTERN_C
58 # define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
60 # define AVSC_EXPORT EXTERN_C __declspec(dllexport)
61 # ifndef AVSC_NO_DECLSPEC
62 # define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
64 # define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
69 typedef long long int INT64
;
71 typedef __int64 INT64
;
75 /////////////////////////////////////////////////////////////////////
80 #ifndef __AVXSYNTH_H__
81 enum { AVISYNTH_INTERFACE_VERSION
= 3 };
84 enum {AVS_SAMPLE_INT8
= 1<<0,
85 AVS_SAMPLE_INT16
= 1<<1,
86 AVS_SAMPLE_INT24
= 1<<2,
87 AVS_SAMPLE_INT32
= 1<<3,
88 AVS_SAMPLE_FLOAT
= 1<<4};
90 enum {AVS_PLANAR_Y
=1<<0,
93 AVS_PLANAR_ALIGNED
=1<<3,
94 AVS_PLANAR_Y_ALIGNED
=AVS_PLANAR_Y
|AVS_PLANAR_ALIGNED
,
95 AVS_PLANAR_U_ALIGNED
=AVS_PLANAR_U
|AVS_PLANAR_ALIGNED
,
96 AVS_PLANAR_V_ALIGNED
=AVS_PLANAR_V
|AVS_PLANAR_ALIGNED
};
98 // Colorspace properties.
99 enum {AVS_CS_BGR
= 1<<28,
101 AVS_CS_INTERLEAVED
= 1<<30,
102 AVS_CS_PLANAR
= 1<<31};
104 // Specific colorformats
107 AVS_CS_BGR24
= 1<<0 | AVS_CS_BGR
| AVS_CS_INTERLEAVED
,
108 AVS_CS_BGR32
= 1<<1 | AVS_CS_BGR
| AVS_CS_INTERLEAVED
,
109 AVS_CS_YUY2
= 1<<2 | AVS_CS_YUV
| AVS_CS_INTERLEAVED
,
110 AVS_CS_YV12
= 1<<3 | AVS_CS_YUV
| AVS_CS_PLANAR
, // y-v-u, planar
111 AVS_CS_I420
= 1<<4 | AVS_CS_YUV
| AVS_CS_PLANAR
, // y-u-v, planar
112 AVS_CS_IYUV
= 1<<4 | AVS_CS_YUV
| AVS_CS_PLANAR
// same as above
118 AVS_IT_FIELDBASED
= 1<<2};
122 AVS_FILTER_INPUT_COLORSPACE
=2,
123 AVS_FILTER_OUTPUT_TYPE
=9,
126 AVS_FILTER_VERSION
=6,
128 AVS_FILTER_ARGS_INFO
=8,
129 AVS_FILTER_ARGS_DESCRIPTION
=10,
130 AVS_FILTER_DESCRIPTION
=11};
133 AVS_FILTER_TYPE_AUDIO
=1,
134 AVS_FILTER_TYPE_VIDEO
=2,
135 AVS_FILTER_OUTPUT_TYPE_SAME
=3,
136 AVS_FILTER_OUTPUT_TYPE_DIFFERENT
=4};
143 AVS_CACHE_AUDIO_NONE
=4,
144 AVS_CACHE_AUDIO_AUTO
=5
147 #define AVS_FRAME_ALIGN 16
149 typedef struct AVS_Clip AVS_Clip
;
150 typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment
;
152 /////////////////////////////////////////////////////////////////////
157 // AVS_VideoInfo is layed out identicly to VideoInfo
158 typedef struct AVS_VideoInfo
{
159 int width
, height
; // width=0 means no video
160 unsigned fps_numerator
, fps_denominator
;
165 int audio_samples_per_second
; // 0 means no audio
167 INT64 num_audio_samples
;
170 // Imagetype properties
175 // useful functions of the above
176 AVSC_INLINE
int avs_has_video(const AVS_VideoInfo
* p
)
177 { return (p
->width
!=0); }
179 AVSC_INLINE
int avs_has_audio(const AVS_VideoInfo
* p
)
180 { return (p
->audio_samples_per_second
!=0); }
182 AVSC_INLINE
int avs_is_rgb(const AVS_VideoInfo
* p
)
183 { return !!(p
->pixel_type
&AVS_CS_BGR
); }
185 AVSC_INLINE
int avs_is_rgb24(const AVS_VideoInfo
* p
)
186 { return (p
->pixel_type
&AVS_CS_BGR24
)==AVS_CS_BGR24
; } // Clear out additional properties
188 AVSC_INLINE
int avs_is_rgb32(const AVS_VideoInfo
* p
)
189 { return (p
->pixel_type
& AVS_CS_BGR32
) == AVS_CS_BGR32
; }
191 AVSC_INLINE
int avs_is_yuv(const AVS_VideoInfo
* p
)
192 { return !!(p
->pixel_type
&AVS_CS_YUV
); }
194 AVSC_INLINE
int avs_is_yuy2(const AVS_VideoInfo
* p
)
195 { return (p
->pixel_type
& AVS_CS_YUY2
) == AVS_CS_YUY2
; }
197 AVSC_INLINE
int avs_is_yv12(const AVS_VideoInfo
* p
)
198 { return ((p
->pixel_type
& AVS_CS_YV12
) == AVS_CS_YV12
)||((p
->pixel_type
& AVS_CS_I420
) == AVS_CS_I420
); }
200 AVSC_INLINE
int avs_is_color_space(const AVS_VideoInfo
* p
, int c_space
)
201 { return ((p
->pixel_type
& c_space
) == c_space
); }
203 AVSC_INLINE
int avs_is_property(const AVS_VideoInfo
* p
, int property
)
204 { return ((p
->pixel_type
& property
)==property
); }
206 AVSC_INLINE
int avs_is_planar(const AVS_VideoInfo
* p
)
207 { return !!(p
->pixel_type
& AVS_CS_PLANAR
); }
209 AVSC_INLINE
int avs_is_field_based(const AVS_VideoInfo
* p
)
210 { return !!(p
->image_type
& AVS_IT_FIELDBASED
); }
212 AVSC_INLINE
int avs_is_parity_known(const AVS_VideoInfo
* p
)
213 { return ((p
->image_type
& AVS_IT_FIELDBASED
)&&(p
->image_type
& (AVS_IT_BFF
| AVS_IT_TFF
))); }
215 AVSC_INLINE
int avs_is_bff(const AVS_VideoInfo
* p
)
216 { return !!(p
->image_type
& AVS_IT_BFF
); }
218 AVSC_INLINE
int avs_is_tff(const AVS_VideoInfo
* p
)
219 { return !!(p
->image_type
& AVS_IT_TFF
); }
221 AVSC_INLINE
int avs_bits_per_pixel(const AVS_VideoInfo
* p
)
223 switch (p
->pixel_type
) {
224 case AVS_CS_BGR24
: return 24;
225 case AVS_CS_BGR32
: return 32;
226 case AVS_CS_YUY2
: return 16;
228 case AVS_CS_I420
: return 12;
232 AVSC_INLINE
int avs_bytes_from_pixels(const AVS_VideoInfo
* p
, int pixels
)
233 { return pixels
* (avs_bits_per_pixel(p
)>>3); } // Will work on planar images, but will return only luma planes
235 AVSC_INLINE
int avs_row_size(const AVS_VideoInfo
* p
)
236 { return avs_bytes_from_pixels(p
,p
->width
); } // Also only returns first plane on planar images
238 AVSC_INLINE
int avs_bmp_size(const AVS_VideoInfo
* vi
)
239 { 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); }
241 AVSC_INLINE
int avs_samples_per_second(const AVS_VideoInfo
* p
)
242 { return p
->audio_samples_per_second
; }
245 AVSC_INLINE
int avs_bytes_per_channel_sample(const AVS_VideoInfo
* p
)
247 switch (p
->sample_type
) {
248 case AVS_SAMPLE_INT8
: return sizeof(signed char);
249 case AVS_SAMPLE_INT16
: return sizeof(signed short);
250 case AVS_SAMPLE_INT24
: return 3;
251 case AVS_SAMPLE_INT32
: return sizeof(signed int);
252 case AVS_SAMPLE_FLOAT
: return sizeof(float);
256 AVSC_INLINE
int avs_bytes_per_audio_sample(const AVS_VideoInfo
* p
)
257 { return p
->nchannels
*avs_bytes_per_channel_sample(p
);}
259 AVSC_INLINE INT64
avs_audio_samples_from_frames(const AVS_VideoInfo
* p
, INT64 frames
)
260 { return ((INT64
)(frames
) * p
->audio_samples_per_second
* p
->fps_denominator
/ p
->fps_numerator
); }
262 AVSC_INLINE
int avs_frames_from_audio_samples(const AVS_VideoInfo
* p
, INT64 samples
)
263 { return (int)(samples
* (INT64
)p
->fps_numerator
/ (INT64
)p
->fps_denominator
/ (INT64
)p
->audio_samples_per_second
); }
265 AVSC_INLINE INT64
avs_audio_samples_from_bytes(const AVS_VideoInfo
* p
, INT64 bytes
)
266 { return bytes
/ avs_bytes_per_audio_sample(p
); }
268 AVSC_INLINE INT64
avs_bytes_from_audio_samples(const AVS_VideoInfo
* p
, INT64 samples
)
269 { return samples
* avs_bytes_per_audio_sample(p
); }
271 AVSC_INLINE
int avs_audio_channels(const AVS_VideoInfo
* p
)
272 { return p
->nchannels
; }
274 AVSC_INLINE
int avs_sample_type(const AVS_VideoInfo
* p
)
275 { return p
->sample_type
;}
278 AVSC_INLINE
void avs_set_property(AVS_VideoInfo
* p
, int property
)
279 { p
->image_type
|=property
; }
281 AVSC_INLINE
void avs_clear_property(AVS_VideoInfo
* p
, int property
)
282 { p
->image_type
&=~property
; }
284 AVSC_INLINE
void avs_set_field_based(AVS_VideoInfo
* p
, int isfieldbased
)
285 { if (isfieldbased
) p
->image_type
|=AVS_IT_FIELDBASED
; else p
->image_type
&=~AVS_IT_FIELDBASED
; }
287 AVSC_INLINE
void avs_set_fps(AVS_VideoInfo
* p
, unsigned numerator
, unsigned denominator
)
289 unsigned x
=numerator
, y
=denominator
;
290 while (y
) { // find gcd
291 unsigned t
= x
%y
; x
= y
; y
= t
;
293 p
->fps_numerator
= numerator
/x
;
294 p
->fps_denominator
= denominator
/x
;
297 AVSC_INLINE
int avs_is_same_colorspace(AVS_VideoInfo
* x
, AVS_VideoInfo
* y
)
299 return (x
->pixel_type
== y
->pixel_type
)
300 || (avs_is_yv12(x
) && avs_is_yv12(y
));
303 /////////////////////////////////////////////////////////////////////
308 // VideoFrameBuffer holds information about a memory block which is used
309 // for video data. For efficiency, instances of this class are not deleted
310 // when the refcount reaches zero; instead they're stored in a linked list
311 // to be reused. The instances are deleted when the corresponding AVS
314 // AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
315 // DO NOT USE THIS STRUCTURE DIRECTLY
316 typedef struct AVS_VideoFrameBuffer
{
317 unsigned char * data
;
319 // sequence_number is incremented every time the buffer is changed, so
320 // that stale views can tell they're no longer valid.
321 long sequence_number
;
324 } AVS_VideoFrameBuffer
;
326 // VideoFrame holds a "window" into a VideoFrameBuffer.
328 // AVS_VideoFrame is layed out identicly to IVideoFrame
329 // DO NOT USE THIS STRUCTURE DIRECTLY
330 typedef struct AVS_VideoFrame
{
332 AVS_VideoFrameBuffer
* vfb
;
333 int offset
, pitch
, row_size
, height
, offsetU
, offsetV
, pitchUV
; // U&V offsets are from top of picture.
336 // Access functions for AVS_VideoFrame
337 AVSC_INLINE
int avs_get_pitch(const AVS_VideoFrame
* p
) {
340 AVSC_INLINE
int avs_get_pitch_p(const AVS_VideoFrame
* p
, int plane
) {
342 case AVS_PLANAR_U
: case AVS_PLANAR_V
: return p
->pitchUV
;}
345 AVSC_INLINE
int avs_get_row_size(const AVS_VideoFrame
* p
) {
346 return p
->row_size
; }
348 AVSC_INLINE
int avs_get_row_size_p(const AVS_VideoFrame
* p
, int plane
) {
351 case AVS_PLANAR_U
: case AVS_PLANAR_V
:
352 if (p
->pitchUV
) return p
->row_size
>>1;
354 case AVS_PLANAR_U_ALIGNED
: case AVS_PLANAR_V_ALIGNED
:
356 r
= ((p
->row_size
+AVS_FRAME_ALIGN
-1)&(~(AVS_FRAME_ALIGN
-1)) )>>1; // Aligned rowsize
359 return p
->row_size
>>1;
361 case AVS_PLANAR_Y_ALIGNED
:
362 r
= (p
->row_size
+AVS_FRAME_ALIGN
-1)&(~(AVS_FRAME_ALIGN
-1)); // Aligned rowsize
370 AVSC_INLINE
int avs_get_height(const AVS_VideoFrame
* p
) {
373 AVSC_INLINE
int avs_get_height_p(const AVS_VideoFrame
* p
, int plane
) {
375 case AVS_PLANAR_U
: case AVS_PLANAR_V
:
376 if (p
->pitchUV
) return p
->height
>>1;
381 AVSC_INLINE
const unsigned char* avs_get_read_ptr(const AVS_VideoFrame
* p
) {
382 return p
->vfb
->data
+ p
->offset
;}
384 AVSC_INLINE
const unsigned char* avs_get_read_ptr_p(const AVS_VideoFrame
* p
, int plane
)
387 case AVS_PLANAR_U
: return p
->vfb
->data
+ p
->offsetU
;
388 case AVS_PLANAR_V
: return p
->vfb
->data
+ p
->offsetV
;
389 default: return p
->vfb
->data
+ p
->offset
;}
392 AVSC_INLINE
int avs_is_writable(const AVS_VideoFrame
* p
) {
393 return (p
->refcount
== 1 && p
->vfb
->refcount
== 1);}
395 AVSC_INLINE
unsigned char* avs_get_write_ptr(const AVS_VideoFrame
* p
)
397 if (avs_is_writable(p
)) {
398 ++p
->vfb
->sequence_number
;
399 return p
->vfb
->data
+ p
->offset
;
404 AVSC_INLINE
unsigned char* avs_get_write_ptr_p(const AVS_VideoFrame
* p
, int plane
)
406 if (plane
==AVS_PLANAR_Y
&& avs_is_writable(p
)) {
407 ++p
->vfb
->sequence_number
;
408 return p
->vfb
->data
+ p
->offset
;
409 } else if (plane
==AVS_PLANAR_Y
) {
413 case AVS_PLANAR_U
: return p
->vfb
->data
+ p
->offsetU
;
414 case AVS_PLANAR_V
: return p
->vfb
->data
+ p
->offsetV
;
415 default: return p
->vfb
->data
+ p
->offset
;
420 #if defined __cplusplus
423 #endif // __cplusplus
424 AVSC_API(void, avs_release_video_frame
)(AVS_VideoFrame
*);
425 // makes a shallow copy of a video frame
426 AVSC_API(AVS_VideoFrame
*, avs_copy_video_frame
)(AVS_VideoFrame
*);
427 #if defined __cplusplus
429 #endif // __cplusplus
431 #ifndef AVSC_NO_DECLSPEC
432 AVSC_INLINE
void avs_release_frame(AVS_VideoFrame
* f
)
433 {avs_release_video_frame(f
);}
434 AVSC_INLINE AVS_VideoFrame
* avs_copy_frame(AVS_VideoFrame
* f
)
435 {return avs_copy_video_frame(f
);}
438 /////////////////////////////////////////////////////////////////////
443 // Treat AVS_Value as a fat pointer. That is use avs_copy_value
444 // and avs_release_value appropiaty as you would if AVS_Value was
447 // To maintain source code compatibility with future versions of the
448 // avisynth_c API don't use the AVS_Value directly. Use the helper
451 // AVS_Value is layed out identicly to AVSValue
452 typedef struct AVS_Value AVS_Value
;
454 short type
; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
455 // for some function e'rror
458 void * clip
; // do not use directly, use avs_take_clip
461 INT64 integer64
; // match addition of __int64 to avxplugin.h
464 const AVS_Value
* array
;
468 // AVS_Value should be initilized with avs_void.
469 // Should also set to avs_void after the value is released
470 // with avs_copy_value. Consider it the equalvent of setting
472 static const AVS_Value avs_void
= {'v'};
474 AVSC_API(void, avs_copy_value
)(AVS_Value
* dest
, AVS_Value src
);
475 AVSC_API(void, avs_release_value
)(AVS_Value
);
477 AVSC_INLINE
int avs_defined(AVS_Value v
) { return v
.type
!= 'v'; }
478 AVSC_INLINE
int avs_is_clip(AVS_Value v
) { return v
.type
== 'c'; }
479 AVSC_INLINE
int avs_is_bool(AVS_Value v
) { return v
.type
== 'b'; }
480 AVSC_INLINE
int avs_is_int(AVS_Value v
) { return v
.type
== 'i'; }
481 AVSC_INLINE
int avs_is_float(AVS_Value v
) { return v
.type
== 'f' || v
.type
== 'i'; }
482 AVSC_INLINE
int avs_is_string(AVS_Value v
) { return v
.type
== 's'; }
483 AVSC_INLINE
int avs_is_array(AVS_Value v
) { return v
.type
== 'a'; }
484 AVSC_INLINE
int avs_is_error(AVS_Value v
) { return v
.type
== 'e'; }
486 #if defined __cplusplus
489 #endif // __cplusplus
490 AVSC_API(AVS_Clip
*, avs_take_clip
)(AVS_Value
, AVS_ScriptEnvironment
*);
491 AVSC_API(void, avs_set_to_clip
)(AVS_Value
*, AVS_Clip
*);
492 #if defined __cplusplus
494 #endif // __cplusplus
496 AVSC_INLINE
int avs_as_bool(AVS_Value v
)
497 { return v
.d
.boolean
; }
498 AVSC_INLINE
int avs_as_int(AVS_Value v
)
499 { return v
.d
.integer
; }
500 AVSC_INLINE
const char * avs_as_string(AVS_Value v
)
501 { return avs_is_error(v
) || avs_is_string(v
) ? v
.d
.string
: 0; }
502 AVSC_INLINE
double avs_as_float(AVS_Value v
)
503 { return avs_is_int(v
) ? v
.d
.integer
: v
.d
.floating_pt
; }
504 AVSC_INLINE
const char * avs_as_error(AVS_Value v
)
505 { return avs_is_error(v
) ? v
.d
.string
: 0; }
506 AVSC_INLINE
const AVS_Value
* avs_as_array(AVS_Value v
)
507 { return v
.d
.array
; }
508 AVSC_INLINE
int avs_array_size(AVS_Value v
)
509 { return avs_is_array(v
) ? v
.array_size
: 1; }
510 AVSC_INLINE AVS_Value
avs_array_elt(AVS_Value v
, int index
)
511 { return avs_is_array(v
) ? v
.d
.array
[index
] : v
; }
513 // only use these functions on am AVS_Value that does not already have
514 // an active value. Remember, treat AVS_Value as a fat pointer.
515 AVSC_INLINE AVS_Value
avs_new_value_bool(int v0
)
516 { AVS_Value v
; v
.type
= 'b'; v
.d
.boolean
= v0
== 0 ? 0 : 1; return v
; }
517 AVSC_INLINE AVS_Value
avs_new_value_int(int v0
)
518 { AVS_Value v
; v
.type
= 'i'; v
.d
.integer
= v0
; return v
; }
519 AVSC_INLINE AVS_Value
avs_new_value_string(const char * v0
)
520 { AVS_Value v
; v
.type
= 's'; v
.d
.string
= v0
; return v
; }
521 AVSC_INLINE AVS_Value
avs_new_value_float(float v0
)
522 { AVS_Value v
; v
.type
= 'f'; v
.d
.floating_pt
= v0
; return v
;}
523 AVSC_INLINE AVS_Value
avs_new_value_error(const char * v0
)
524 { AVS_Value v
; v
.type
= 'e'; v
.d
.string
= v0
; return v
; }
525 #ifndef AVSC_NO_DECLSPEC
526 AVSC_INLINE AVS_Value
avs_new_value_clip(AVS_Clip
* v0
)
527 { AVS_Value v
; avs_set_to_clip(&v
, v0
); return v
; }
529 AVSC_INLINE AVS_Value
avs_new_value_array(AVS_Value
* v0
, int size
)
530 { AVS_Value v
; v
.type
= 'a'; v
.d
.array
= v0
; v
.array_size
= size
; return v
; }
532 /////////////////////////////////////////////////////////////////////
536 #if defined __cplusplus
539 #endif // __cplusplus
540 AVSC_API(void, avs_release_clip
)(AVS_Clip
*);
541 AVSC_API(AVS_Clip
*, avs_copy_clip
)(AVS_Clip
*);
543 AVSC_API(const char *, avs_clip_get_error
)(AVS_Clip
*); // return 0 if no error
545 AVSC_API(const AVS_VideoInfo
*, avs_get_video_info
)(AVS_Clip
*);
547 AVSC_API(int, avs_get_version
)(AVS_Clip
*);
549 AVSC_API(AVS_VideoFrame
*, avs_get_frame
)(AVS_Clip
*, int n
);
550 // The returned video frame must be released with avs_release_video_frame
552 AVSC_API(int, avs_get_parity
)(AVS_Clip
*, int n
);
553 // return field parity if field_based, else parity of first field in frame
555 AVSC_API(int, avs_get_audio
)(AVS_Clip
*, void * buf
,
556 INT64 start
, INT64 count
);
557 // start and count are in samples
559 AVSC_API(int, avs_set_cache_hints
)(AVS_Clip
*,
560 int cachehints
, size_t frame_range
);
561 #if defined __cplusplus
563 #endif // __cplusplus
565 // This is the callback type used by avs_add_function
566 typedef AVS_Value (AVSC_CC
* AVS_ApplyFunc
)
567 (AVS_ScriptEnvironment
*, AVS_Value args
, void * user_data
);
569 typedef struct AVS_FilterInfo AVS_FilterInfo
;
570 struct AVS_FilterInfo
572 // these members should not be modified outside of the AVS_ApplyFunc callback
575 AVS_ScriptEnvironment
* env
;
576 AVS_VideoFrame
* (AVSC_CC
* get_frame
)(AVS_FilterInfo
*, int n
);
577 int (AVSC_CC
* get_parity
)(AVS_FilterInfo
*, int n
);
578 int (AVSC_CC
* get_audio
)(AVS_FilterInfo
*, void * buf
,
579 INT64 start
, INT64 count
);
580 int (AVSC_CC
* set_cache_hints
)(AVS_FilterInfo
*, int cachehints
,
582 void (AVSC_CC
* free_filter
)(AVS_FilterInfo
*);
584 // Should be set when ever there is an error to report.
585 // It is cleared before any of the above methods are called
587 // this is to store whatever and may be modified at will
591 // Create a new filter
592 // fi is set to point to the AVS_FilterInfo so that you can
593 // modify it once it is initilized.
594 // store_child should generally be set to true. If it is not
595 // set than ALL methods (the function pointers) must be defined
596 // If it is set than you do not need to worry about freeing the child
598 #if defined __cplusplus
601 #endif // __cplusplus
602 AVSC_API(AVS_Clip
*, avs_new_c_filter
)(AVS_ScriptEnvironment
* e
,
603 AVS_FilterInfo
* * fi
,
604 AVS_Value child
, int store_child
);
605 #if defined __cplusplus
607 #endif // __cplusplus
610 /////////////////////////////////////////////////////////////////////
612 // AVS_ScriptEnvironment
615 // For GetCPUFlags. These are backwards-compatible with those in VirtualDub.
617 /* slowest CPU to support extension */
618 AVS_CPU_FORCE
= 0x01, // N/A
619 AVS_CPU_FPU
= 0x02, // 386/486DX
620 AVS_CPU_MMX
= 0x04, // P55C, K6, PII
621 AVS_CPU_INTEGER_SSE
= 0x08, // PIII, Athlon
622 AVS_CPU_SSE
= 0x10, // PIII, Athlon XP/MP
623 AVS_CPU_SSE2
= 0x20, // PIV, Hammer
624 AVS_CPU_3DNOW
= 0x40, // K6-2
625 AVS_CPU_3DNOW_EXT
= 0x80, // Athlon
626 AVS_CPU_X86_64
= 0xA0, // Hammer (note: equiv. to 3DNow + SSE2,
627 // which only Hammer will have anyway)
630 #if defined __cplusplus
633 #endif // __cplusplus
634 AVSC_API(const char *, avs_get_error
)(AVS_ScriptEnvironment
*); // return 0 if no error
636 AVSC_API(long, avs_get_cpu_flags
)(AVS_ScriptEnvironment
*);
637 AVSC_API(int, avs_check_version
)(AVS_ScriptEnvironment
*, int version
);
639 AVSC_API(char *, avs_save_string
)(AVS_ScriptEnvironment
*, const char* s
, int length
);
640 AVSC_API(char *, avs_sprintf
)(AVS_ScriptEnvironment
*, const char * fmt
, ...);
642 AVSC_API(char *, avs_vsprintf
)(AVS_ScriptEnvironment
*, const char * fmt
, va_list val
);
643 // note: val is really a va_list; I hope everyone typedefs va_list to a pointer
645 AVSC_API(int, avs_add_function
)(AVS_ScriptEnvironment
*,
646 const char * name
, const char * params
,
647 AVS_ApplyFunc apply
, void * user_data
);
649 AVSC_API(int, avs_function_exists
)(AVS_ScriptEnvironment
*, const char * name
);
651 AVSC_API(AVS_Value
, avs_invoke
)(AVS_ScriptEnvironment
*, const char * name
,
652 AVS_Value args
, const char** arg_names
);
653 // The returned value must be be released with avs_release_value
655 AVSC_API(AVS_Value
, avs_get_var
)(AVS_ScriptEnvironment
*, const char* name
);
656 // The returned value must be be released with avs_release_value
658 AVSC_API(int, avs_set_var
)(AVS_ScriptEnvironment
*, const char* name
, AVS_Value val
);
660 AVSC_API(int, avs_set_global_var
)(AVS_ScriptEnvironment
*, const char* name
, const AVS_Value val
);
662 //void avs_push_context(AVS_ScriptEnvironment *, int level=0);
663 //void avs_pop_context(AVS_ScriptEnvironment *);
665 AVSC_API(AVS_VideoFrame
*, avs_new_video_frame_a
)(AVS_ScriptEnvironment
*,
666 const AVS_VideoInfo
* vi
, int align
);
667 // align should be at least 16
668 #if defined __cplusplus
670 #endif // __cplusplus
672 #ifndef AVSC_NO_DECLSPEC
674 AVS_VideoFrame
* avs_new_video_frame(AVS_ScriptEnvironment
* env
,
675 const AVS_VideoInfo
* vi
)
676 {return avs_new_video_frame_a(env
,vi
,AVS_FRAME_ALIGN
);}
679 AVS_VideoFrame
* avs_new_frame(AVS_ScriptEnvironment
* env
,
680 const AVS_VideoInfo
* vi
)
681 {return avs_new_video_frame_a(env
,vi
,AVS_FRAME_ALIGN
);}
684 #if defined __cplusplus
687 #endif // __cplusplus
688 AVSC_API(int, avs_make_writable
)(AVS_ScriptEnvironment
*, AVS_VideoFrame
* * pvf
);
690 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
);
692 typedef void (AVSC_CC
*AVS_ShutdownFunc
)(void* user_data
, AVS_ScriptEnvironment
* env
);
693 AVSC_API(void, avs_at_exit
)(AVS_ScriptEnvironment
*, AVS_ShutdownFunc function
, void * user_data
);
695 AVSC_API(AVS_VideoFrame
*, avs_subframe
)(AVS_ScriptEnvironment
*, AVS_VideoFrame
* src
, int rel_offset
, int new_pitch
, int new_row_size
, int new_height
);
696 // The returned video frame must be be released
698 AVSC_API(int, avs_set_memory_max
)(AVS_ScriptEnvironment
*, int mem
);
700 AVSC_API(int, avs_set_working_dir
)(AVS_ScriptEnvironment
*, const char * newdir
);
702 // avisynth.dll exports this; it's a way to use it as a library, without
703 // writing an AVS script or without going through AVIFile.
704 AVSC_API(AVS_ScriptEnvironment
*, avs_create_script_environment
)(int version
);
705 #if defined __cplusplus
707 #endif // __cplusplus
709 // this symbol is the entry point for the plugin and must
712 const char * AVSC_CC
avisynth_c_plugin_init(AVS_ScriptEnvironment
* env
);
715 #if defined __cplusplus
718 #endif // __cplusplus
719 AVSC_API(void, avs_delete_script_environment
)(AVS_ScriptEnvironment
*);
722 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
);
723 // The returned video frame must be be released
724 #if defined __cplusplus
726 #endif // __cplusplus
728 #endif //__AVXSYNTH_C__