Commit | Line | Data |
---|---|---|
2ba45a60 DM |
1 | // Avisynth C Interface Version 0.20 |
2 | // Copyright 2003 Kevin Atkinson | |
3 | ||
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. | |
8 | // | |
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. | |
13 | // | |
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 . | |
19 | // | |
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. | |
33 | ||
34 | // NOTE: this is a partial update of the Avisynth C interface to recognize | |
35 | // new color spaces added in Avisynth 2.60. By no means is this document | |
36 | // completely Avisynth 2.60 compliant. | |
37 | ||
38 | #ifndef __AVISYNTH_C__ | |
39 | #define __AVISYNTH_C__ | |
40 | ||
41 | #ifdef __cplusplus | |
42 | # define EXTERN_C extern "C" | |
43 | #else | |
44 | # define EXTERN_C | |
45 | #endif | |
46 | ||
47 | #define AVSC_USE_STDCALL 1 | |
48 | ||
49 | #ifndef AVSC_USE_STDCALL | |
50 | # define AVSC_CC __cdecl | |
51 | #else | |
52 | # define AVSC_CC __stdcall | |
53 | #endif | |
54 | ||
55 | #define AVSC_INLINE static __inline | |
56 | ||
57 | #ifdef AVISYNTH_C_EXPORTS | |
58 | # define AVSC_EXPORT EXTERN_C | |
59 | # define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name | |
60 | #else | |
61 | # define AVSC_EXPORT EXTERN_C __declspec(dllexport) | |
62 | # ifndef AVSC_NO_DECLSPEC | |
63 | # define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name | |
64 | # else | |
65 | # define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func) | |
66 | # endif | |
67 | #endif | |
68 | ||
69 | typedef unsigned char BYTE; | |
70 | #ifdef __GNUC__ | |
71 | typedef long long int INT64; | |
72 | #else | |
73 | typedef __int64 INT64; | |
74 | #endif | |
75 | ||
76 | ||
77 | ///////////////////////////////////////////////////////////////////// | |
78 | // | |
79 | // Constants | |
80 | // | |
81 | ||
82 | #ifndef __AVISYNTH_H__ | |
83 | enum { AVISYNTH_INTERFACE_VERSION = 4 }; | |
84 | #endif | |
85 | ||
86 | enum {AVS_SAMPLE_INT8 = 1<<0, | |
87 | AVS_SAMPLE_INT16 = 1<<1, | |
88 | AVS_SAMPLE_INT24 = 1<<2, | |
89 | AVS_SAMPLE_INT32 = 1<<3, | |
90 | AVS_SAMPLE_FLOAT = 1<<4}; | |
91 | ||
92 | enum {AVS_PLANAR_Y=1<<0, | |
93 | AVS_PLANAR_U=1<<1, | |
94 | AVS_PLANAR_V=1<<2, | |
95 | AVS_PLANAR_ALIGNED=1<<3, | |
96 | AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED, | |
97 | AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED, | |
98 | AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED, | |
99 | AVS_PLANAR_A=1<<4, | |
100 | AVS_PLANAR_R=1<<5, | |
101 | AVS_PLANAR_G=1<<6, | |
102 | AVS_PLANAR_B=1<<7, | |
103 | AVS_PLANAR_A_ALIGNED=AVS_PLANAR_A|AVS_PLANAR_ALIGNED, | |
104 | AVS_PLANAR_R_ALIGNED=AVS_PLANAR_R|AVS_PLANAR_ALIGNED, | |
105 | AVS_PLANAR_G_ALIGNED=AVS_PLANAR_G|AVS_PLANAR_ALIGNED, | |
106 | AVS_PLANAR_B_ALIGNED=AVS_PLANAR_B|AVS_PLANAR_ALIGNED}; | |
107 | ||
108 | // Colorspace properties. | |
109 | enum {AVS_CS_BGR = 1<<28, | |
110 | AVS_CS_YUV = 1<<29, | |
111 | AVS_CS_INTERLEAVED = 1<<30, | |
112 | AVS_CS_PLANAR = 1<<31, | |
113 | ||
114 | AVS_CS_SHIFT_SUB_WIDTH = 0, | |
115 | AVS_CS_SHIFT_SUB_HEIGHT = 1 << 3, | |
116 | AVS_CS_SHIFT_SAMPLE_BITS = 1 << 4, | |
117 | ||
118 | AVS_CS_SUB_WIDTH_MASK = 7 << AVS_CS_SHIFT_SUB_WIDTH, | |
119 | AVS_CS_SUB_WIDTH_1 = 3 << AVS_CS_SHIFT_SUB_WIDTH, // YV24 | |
120 | AVS_CS_SUB_WIDTH_2 = 0 << AVS_CS_SHIFT_SUB_WIDTH, // YV12, I420, YV16 | |
121 | AVS_CS_SUB_WIDTH_4 = 1 << AVS_CS_SHIFT_SUB_WIDTH, // YUV9, YV411 | |
122 | ||
123 | AVS_CS_VPLANEFIRST = 1 << 3, // YV12, YV16, YV24, YV411, YUV9 | |
124 | AVS_CS_UPLANEFIRST = 1 << 4, // I420 | |
125 | ||
126 | AVS_CS_SUB_HEIGHT_MASK = 7 << AVS_CS_SHIFT_SUB_HEIGHT, | |
127 | AVS_CS_SUB_HEIGHT_1 = 3 << AVS_CS_SHIFT_SUB_HEIGHT, // YV16, YV24, YV411 | |
128 | AVS_CS_SUB_HEIGHT_2 = 0 << AVS_CS_SHIFT_SUB_HEIGHT, // YV12, I420 | |
129 | AVS_CS_SUB_HEIGHT_4 = 1 << AVS_CS_SHIFT_SUB_HEIGHT, // YUV9 | |
130 | ||
131 | AVS_CS_SAMPLE_BITS_MASK = 7 << AVS_CS_SHIFT_SAMPLE_BITS, | |
132 | AVS_CS_SAMPLE_BITS_8 = 0 << AVS_CS_SHIFT_SAMPLE_BITS, | |
133 | AVS_CS_SAMPLE_BITS_16 = 1 << AVS_CS_SHIFT_SAMPLE_BITS, | |
134 | AVS_CS_SAMPLE_BITS_32 = 2 << AVS_CS_SHIFT_SAMPLE_BITS, | |
135 | ||
136 | AVS_CS_PLANAR_MASK = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_BGR | AVS_CS_SAMPLE_BITS_MASK | AVS_CS_SUB_HEIGHT_MASK | AVS_CS_SUB_WIDTH_MASK, | |
137 | AVS_CS_PLANAR_FILTER = ~( AVS_CS_VPLANEFIRST | AVS_CS_UPLANEFIRST )}; | |
138 | ||
139 | // Specific colorformats | |
140 | enum { | |
141 | AVS_CS_UNKNOWN = 0, | |
142 | AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED, | |
143 | AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED, | |
144 | AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED, | |
145 | // AVS_CS_YV12 = 1<<3 Reserved | |
146 | // AVS_CS_I420 = 1<<4 Reserved | |
147 | AVS_CS_RAW32 = 1<<5 | AVS_CS_INTERLEAVED, | |
148 | ||
149 | AVS_CS_YV24 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_1, // YVU 4:4:4 planar | |
150 | AVS_CS_YV16 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_2, // YVU 4:2:2 planar | |
151 | AVS_CS_YV12 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2, // YVU 4:2:0 planar | |
152 | AVS_CS_I420 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_UPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2, // YUV 4:2:0 planar | |
153 | AVS_CS_IYUV = AVS_CS_I420, | |
154 | AVS_CS_YV411 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_4, // YVU 4:1:1 planar | |
155 | AVS_CS_YUV9 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_4 | AVS_CS_SUB_WIDTH_4, // YVU 4:1:0 planar | |
156 | AVS_CS_Y8 = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 // Y 4:0:0 planar | |
157 | }; | |
158 | ||
159 | enum { | |
160 | AVS_IT_BFF = 1<<0, | |
161 | AVS_IT_TFF = 1<<1, | |
162 | AVS_IT_FIELDBASED = 1<<2}; | |
163 | ||
164 | enum { | |
165 | AVS_FILTER_TYPE=1, | |
166 | AVS_FILTER_INPUT_COLORSPACE=2, | |
167 | AVS_FILTER_OUTPUT_TYPE=9, | |
168 | AVS_FILTER_NAME=4, | |
169 | AVS_FILTER_AUTHOR=5, | |
170 | AVS_FILTER_VERSION=6, | |
171 | AVS_FILTER_ARGS=7, | |
172 | AVS_FILTER_ARGS_INFO=8, | |
173 | AVS_FILTER_ARGS_DESCRIPTION=10, | |
174 | AVS_FILTER_DESCRIPTION=11}; | |
175 | ||
176 | enum { //SUBTYPES | |
177 | AVS_FILTER_TYPE_AUDIO=1, | |
178 | AVS_FILTER_TYPE_VIDEO=2, | |
179 | AVS_FILTER_OUTPUT_TYPE_SAME=3, | |
180 | AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4}; | |
181 | ||
182 | enum { | |
183 | AVS_CACHE_NOTHING=0, | |
184 | AVS_CACHE_RANGE=1, | |
185 | AVS_CACHE_ALL=2, | |
186 | AVS_CACHE_AUDIO=3, | |
187 | AVS_CACHE_AUDIO_NONE=4, | |
188 | AVS_CACHE_AUDIO_AUTO=5 | |
189 | }; | |
190 | ||
191 | #define AVS_FRAME_ALIGN 16 | |
192 | ||
193 | typedef struct AVS_Clip AVS_Clip; | |
194 | typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment; | |
195 | ||
196 | ///////////////////////////////////////////////////////////////////// | |
197 | // | |
198 | // AVS_VideoInfo | |
199 | // | |
200 | ||
201 | // AVS_VideoInfo is layed out identicly to VideoInfo | |
202 | typedef struct AVS_VideoInfo { | |
203 | int width, height; // width=0 means no video | |
204 | unsigned fps_numerator, fps_denominator; | |
205 | int num_frames; | |
206 | ||
207 | int pixel_type; | |
208 | ||
209 | int audio_samples_per_second; // 0 means no audio | |
210 | int sample_type; | |
211 | INT64 num_audio_samples; | |
212 | int nchannels; | |
213 | ||
214 | // Imagetype properties | |
215 | ||
216 | int image_type; | |
217 | } AVS_VideoInfo; | |
218 | ||
219 | // useful functions of the above | |
220 | AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p) | |
221 | { return (p->width!=0); } | |
222 | ||
223 | AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p) | |
224 | { return (p->audio_samples_per_second!=0); } | |
225 | ||
226 | AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p) | |
227 | { return !!(p->pixel_type&AVS_CS_BGR); } | |
228 | ||
229 | AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p) | |
230 | { return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties | |
231 | ||
232 | AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p) | |
233 | { return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; } | |
234 | ||
235 | AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p) | |
236 | { return !!(p->pixel_type&AVS_CS_YUV ); } | |
237 | ||
238 | AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p) | |
239 | { return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; } | |
240 | ||
241 | AVSC_INLINE int avs_is_yv24(const AVS_VideoInfo * p) | |
242 | { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV24 & AVS_CS_PLANAR_FILTER); } | |
243 | ||
244 | AVSC_INLINE int avs_is_yv16(const AVS_VideoInfo * p) | |
245 | { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV16 & AVS_CS_PLANAR_FILTER); } | |
246 | ||
247 | AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p) | |
248 | { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV12 & AVS_CS_PLANAR_FILTER); } | |
249 | ||
250 | AVSC_INLINE int avs_is_yv411(const AVS_VideoInfo * p) | |
251 | { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV411 & AVS_CS_PLANAR_FILTER); } | |
252 | ||
253 | AVSC_INLINE int avs_is_y8(const AVS_VideoInfo * p) | |
254 | { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_Y8 & AVS_CS_PLANAR_FILTER); } | |
255 | ||
256 | AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property) | |
257 | { return ((p->pixel_type & property)==property ); } | |
258 | ||
259 | AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p) | |
260 | { return !!(p->pixel_type & AVS_CS_PLANAR); } | |
261 | ||
262 | AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space) | |
263 | { return avs_is_planar(p) ? ((p->pixel_type & AVS_CS_PLANAR_MASK) == (c_space & AVS_CS_PLANAR_FILTER)) : ((p->pixel_type & c_space) == c_space); } | |
264 | ||
265 | AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p) | |
266 | { return !!(p->image_type & AVS_IT_FIELDBASED); } | |
267 | ||
268 | AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p) | |
269 | { return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); } | |
270 | ||
271 | AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p) | |
272 | { return !!(p->image_type & AVS_IT_BFF); } | |
273 | ||
274 | AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p) | |
275 | { return !!(p->image_type & AVS_IT_TFF); } | |
276 | ||
277 | AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p) | |
278 | { | |
279 | switch (p->pixel_type) { | |
280 | case AVS_CS_BGR24: return 24; | |
281 | case AVS_CS_BGR32: return 32; | |
282 | case AVS_CS_YUY2: return 16; | |
283 | case AVS_CS_YV12: | |
284 | case AVS_CS_I420: return 12; | |
285 | default: return 0; | |
286 | } | |
287 | } | |
288 | AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels) | |
289 | { return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes | |
290 | ||
291 | AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p) | |
292 | { return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images | |
293 | ||
294 | AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi) | |
295 | { 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); } | |
296 | ||
297 | AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p) | |
298 | { return p->audio_samples_per_second; } | |
299 | ||
300 | ||
301 | AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p) | |
302 | { | |
303 | switch (p->sample_type) { | |
304 | case AVS_SAMPLE_INT8: return sizeof(signed char); | |
305 | case AVS_SAMPLE_INT16: return sizeof(signed short); | |
306 | case AVS_SAMPLE_INT24: return 3; | |
307 | case AVS_SAMPLE_INT32: return sizeof(signed int); | |
308 | case AVS_SAMPLE_FLOAT: return sizeof(float); | |
309 | default: return 0; | |
310 | } | |
311 | } | |
312 | AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p) | |
313 | { return p->nchannels*avs_bytes_per_channel_sample(p);} | |
314 | ||
315 | AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames) | |
316 | { return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); } | |
317 | ||
318 | AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples) | |
319 | { return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); } | |
320 | ||
321 | AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes) | |
322 | { return bytes / avs_bytes_per_audio_sample(p); } | |
323 | ||
324 | AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples) | |
325 | { return samples * avs_bytes_per_audio_sample(p); } | |
326 | ||
327 | AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p) | |
328 | { return p->nchannels; } | |
329 | ||
330 | AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p) | |
331 | { return p->sample_type;} | |
332 | ||
333 | // useful mutator | |
334 | AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property) | |
335 | { p->image_type|=property; } | |
336 | ||
337 | AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property) | |
338 | { p->image_type&=~property; } | |
339 | ||
340 | AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased) | |
341 | { if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; } | |
342 | ||
343 | AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator) | |
344 | { | |
345 | unsigned x=numerator, y=denominator; | |
346 | while (y) { // find gcd | |
347 | unsigned t = x%y; x = y; y = t; | |
348 | } | |
349 | p->fps_numerator = numerator/x; | |
350 | p->fps_denominator = denominator/x; | |
351 | } | |
352 | ||
353 | AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y) | |
354 | { | |
355 | return (x->pixel_type == y->pixel_type) | |
356 | || (avs_is_yv12(x) && avs_is_yv12(y)); | |
357 | } | |
358 | ||
359 | ///////////////////////////////////////////////////////////////////// | |
360 | // | |
361 | // AVS_VideoFrame | |
362 | // | |
363 | ||
364 | // VideoFrameBuffer holds information about a memory block which is used | |
365 | // for video data. For efficiency, instances of this class are not deleted | |
366 | // when the refcount reaches zero; instead they're stored in a linked list | |
367 | // to be reused. The instances are deleted when the corresponding AVS | |
368 | // file is closed. | |
369 | ||
370 | // AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer | |
371 | // DO NOT USE THIS STRUCTURE DIRECTLY | |
372 | typedef struct AVS_VideoFrameBuffer { | |
373 | BYTE * data; | |
374 | int data_size; | |
375 | // sequence_number is incremented every time the buffer is changed, so | |
376 | // that stale views can tell they're no longer valid. | |
377 | volatile long sequence_number; | |
378 | ||
379 | volatile long refcount; | |
380 | } AVS_VideoFrameBuffer; | |
381 | ||
382 | // VideoFrame holds a "window" into a VideoFrameBuffer. | |
383 | ||
384 | // AVS_VideoFrame is layed out identicly to IVideoFrame | |
385 | // DO NOT USE THIS STRUCTURE DIRECTLY | |
386 | typedef struct AVS_VideoFrame { | |
387 | volatile long refcount; | |
388 | AVS_VideoFrameBuffer * vfb; | |
389 | int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture. | |
390 | int row_sizeUV, heightUV; | |
391 | } AVS_VideoFrame; | |
392 | ||
393 | // Access functions for AVS_VideoFrame | |
394 | AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) { | |
395 | return p->pitch;} | |
396 | ||
397 | AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) { | |
398 | switch (plane) { | |
399 | case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;} | |
400 | return p->pitch;} | |
401 | ||
402 | AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) { | |
403 | return p->row_size; } | |
404 | ||
405 | AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) { | |
406 | int r; | |
407 | switch (plane) { | |
408 | case AVS_PLANAR_U: case AVS_PLANAR_V: | |
409 | if (p->pitchUV) return p->row_sizeUV; | |
410 | else return 0; | |
411 | case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED: | |
412 | if (p->pitchUV) { | |
413 | r = (p->row_sizeUV+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize | |
414 | if (r < p->pitchUV) | |
415 | return r; | |
416 | return p->row_sizeUV; | |
417 | } else return 0; | |
418 | case AVS_PLANAR_Y_ALIGNED: | |
419 | r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize | |
420 | if (r <= p->pitch) | |
421 | return r; | |
422 | return p->row_size; | |
423 | } | |
424 | return p->row_size; | |
425 | } | |
426 | ||
427 | AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) { | |
428 | return p->height;} | |
429 | ||
430 | AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) { | |
431 | switch (plane) { | |
432 | case AVS_PLANAR_U: case AVS_PLANAR_V: | |
433 | if (p->pitchUV) return p->heightUV; | |
434 | return 0; | |
435 | } | |
436 | return p->height;} | |
437 | ||
438 | AVSC_INLINE const BYTE* avs_get_read_ptr(const AVS_VideoFrame * p) { | |
439 | return p->vfb->data + p->offset;} | |
440 | ||
441 | AVSC_INLINE const BYTE* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane) | |
442 | { | |
443 | switch (plane) { | |
444 | case AVS_PLANAR_U: return p->vfb->data + p->offsetU; | |
445 | case AVS_PLANAR_V: return p->vfb->data + p->offsetV; | |
446 | default: return p->vfb->data + p->offset;} | |
447 | } | |
448 | ||
449 | AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) { | |
450 | return (p->refcount == 1 && p->vfb->refcount == 1);} | |
451 | ||
452 | AVSC_INLINE BYTE* avs_get_write_ptr(const AVS_VideoFrame * p) | |
453 | { | |
454 | if (avs_is_writable(p)) { | |
455 | ++p->vfb->sequence_number; | |
456 | return p->vfb->data + p->offset; | |
457 | } else | |
458 | return 0; | |
459 | } | |
460 | ||
461 | AVSC_INLINE BYTE* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane) | |
462 | { | |
463 | if (plane==AVS_PLANAR_Y && avs_is_writable(p)) { | |
464 | ++p->vfb->sequence_number; | |
465 | return p->vfb->data + p->offset; | |
466 | } else if (plane==AVS_PLANAR_Y) { | |
467 | return 0; | |
468 | } else { | |
469 | switch (plane) { | |
470 | case AVS_PLANAR_U: return p->vfb->data + p->offsetU; | |
471 | case AVS_PLANAR_V: return p->vfb->data + p->offsetV; | |
472 | default: return p->vfb->data + p->offset; | |
473 | } | |
474 | } | |
475 | } | |
476 | ||
477 | ||
478 | AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *); | |
479 | // makes a shallow copy of a video frame | |
480 | AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *); | |
481 | ||
482 | #ifndef AVSC_NO_DECLSPEC | |
483 | AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f) | |
484 | {avs_release_video_frame(f);} | |
485 | AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f) | |
486 | {return avs_copy_video_frame(f);} | |
487 | #endif | |
488 | ||
489 | ///////////////////////////////////////////////////////////////////// | |
490 | // | |
491 | // AVS_Value | |
492 | // | |
493 | ||
494 | // Treat AVS_Value as a fat pointer. That is use avs_copy_value | |
495 | // and avs_release_value appropiaty as you would if AVS_Value was | |
496 | // a pointer. | |
497 | ||
498 | // To maintain source code compatibility with future versions of the | |
499 | // avisynth_c API don't use the AVS_Value directly. Use the helper | |
500 | // functions below. | |
501 | ||
502 | // AVS_Value is layed out identicly to AVSValue | |
503 | typedef struct AVS_Value AVS_Value; | |
504 | struct AVS_Value { | |
505 | short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong | |
506 | // for some function e'rror | |
507 | short array_size; | |
508 | union { | |
509 | void * clip; // do not use directly, use avs_take_clip | |
510 | char boolean; | |
511 | int integer; | |
512 | float floating_pt; | |
513 | const char * string; | |
514 | const AVS_Value * array; | |
515 | } d; | |
516 | }; | |
517 | ||
518 | // AVS_Value should be initilized with avs_void. | |
519 | // Should also set to avs_void after the value is released | |
520 | // with avs_copy_value. Consider it the equalvent of setting | |
521 | // a pointer to NULL | |
522 | static const AVS_Value avs_void = {'v'}; | |
523 | ||
524 | AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src); | |
525 | AVSC_API(void, avs_release_value)(AVS_Value); | |
526 | ||
527 | AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; } | |
528 | AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; } | |
529 | AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; } | |
530 | AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; } | |
531 | AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; } | |
532 | AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; } | |
533 | AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; } | |
534 | AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; } | |
535 | ||
536 | AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *); | |
537 | AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *); | |
538 | ||
539 | AVSC_INLINE int avs_as_bool(AVS_Value v) | |
540 | { return v.d.boolean; } | |
541 | AVSC_INLINE int avs_as_int(AVS_Value v) | |
542 | { return v.d.integer; } | |
543 | AVSC_INLINE const char * avs_as_string(AVS_Value v) | |
544 | { return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; } | |
545 | AVSC_INLINE double avs_as_float(AVS_Value v) | |
546 | { return avs_is_int(v) ? v.d.integer : v.d.floating_pt; } | |
547 | AVSC_INLINE const char * avs_as_error(AVS_Value v) | |
548 | { return avs_is_error(v) ? v.d.string : 0; } | |
549 | AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v) | |
550 | { return v.d.array; } | |
551 | AVSC_INLINE int avs_array_size(AVS_Value v) | |
552 | { return avs_is_array(v) ? v.array_size : 1; } | |
553 | AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index) | |
554 | { return avs_is_array(v) ? v.d.array[index] : v; } | |
555 | ||
556 | // only use these functions on an AVS_Value that does not already have | |
557 | // an active value. Remember, treat AVS_Value as a fat pointer. | |
558 | AVSC_INLINE AVS_Value avs_new_value_bool(int v0) | |
559 | { AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; } | |
560 | AVSC_INLINE AVS_Value avs_new_value_int(int v0) | |
561 | { AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; } | |
562 | AVSC_INLINE AVS_Value avs_new_value_string(const char * v0) | |
563 | { AVS_Value v; v.type = 's'; v.d.string = v0; return v; } | |
564 | AVSC_INLINE AVS_Value avs_new_value_float(float v0) | |
565 | { AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;} | |
566 | AVSC_INLINE AVS_Value avs_new_value_error(const char * v0) | |
567 | { AVS_Value v; v.type = 'e'; v.d.string = v0; return v; } | |
568 | #ifndef AVSC_NO_DECLSPEC | |
569 | AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0) | |
570 | { AVS_Value v; avs_set_to_clip(&v, v0); return v; } | |
571 | #endif | |
572 | AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size) | |
573 | { AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; } | |
574 | ||
575 | ///////////////////////////////////////////////////////////////////// | |
576 | // | |
577 | // AVS_Clip | |
578 | // | |
579 | ||
580 | AVSC_API(void, avs_release_clip)(AVS_Clip *); | |
581 | AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *); | |
582 | ||
583 | AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error | |
584 | ||
585 | AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *); | |
586 | ||
587 | AVSC_API(int, avs_get_version)(AVS_Clip *); | |
588 | ||
589 | AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n); | |
590 | // The returned video frame must be released with avs_release_video_frame | |
591 | ||
592 | AVSC_API(int, avs_get_parity)(AVS_Clip *, int n); | |
593 | // return field parity if field_based, else parity of first field in frame | |
594 | ||
595 | AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf, | |
596 | INT64 start, INT64 count); | |
597 | // start and count are in samples | |
598 | ||
599 | AVSC_API(int, avs_set_cache_hints)(AVS_Clip *, | |
600 | int cachehints, int frame_range); | |
601 | ||
602 | // This is the callback type used by avs_add_function | |
603 | typedef AVS_Value (AVSC_CC * AVS_ApplyFunc) | |
604 | (AVS_ScriptEnvironment *, AVS_Value args, void * user_data); | |
605 | ||
606 | typedef struct AVS_FilterInfo AVS_FilterInfo; | |
607 | struct AVS_FilterInfo | |
608 | { | |
609 | // these members should not be modified outside of the AVS_ApplyFunc callback | |
610 | AVS_Clip * child; | |
611 | AVS_VideoInfo vi; | |
612 | AVS_ScriptEnvironment * env; | |
613 | AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n); | |
614 | int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n); | |
615 | int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf, | |
616 | INT64 start, INT64 count); | |
617 | int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints, | |
618 | int frame_range); | |
619 | void (AVSC_CC * free_filter)(AVS_FilterInfo *); | |
620 | ||
621 | // Should be set when ever there is an error to report. | |
622 | // It is cleared before any of the above methods are called | |
623 | const char * error; | |
624 | // this is to store whatever and may be modified at will | |
625 | void * user_data; | |
626 | }; | |
627 | ||
628 | // Create a new filter | |
629 | // fi is set to point to the AVS_FilterInfo so that you can | |
630 | // modify it once it is initilized. | |
631 | // store_child should generally be set to true. If it is not | |
632 | // set than ALL methods (the function pointers) must be defined | |
633 | // If it is set than you do not need to worry about freeing the child | |
634 | // clip. | |
635 | AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e, | |
636 | AVS_FilterInfo * * fi, | |
637 | AVS_Value child, int store_child); | |
638 | ||
639 | ///////////////////////////////////////////////////////////////////// | |
640 | // | |
641 | // AVS_ScriptEnvironment | |
642 | // | |
643 | ||
644 | // For GetCPUFlags. These are backwards-compatible with those in VirtualDub. | |
645 | enum { | |
646 | /* slowest CPU to support extension */ | |
647 | AVS_CPU_FORCE = 0x01, // N/A | |
648 | AVS_CPU_FPU = 0x02, // 386/486DX | |
649 | AVS_CPU_MMX = 0x04, // P55C, K6, PII | |
650 | AVS_CPU_INTEGER_SSE = 0x08, // PIII, Athlon | |
651 | AVS_CPU_SSE = 0x10, // PIII, Athlon XP/MP | |
652 | AVS_CPU_SSE2 = 0x20, // PIV, Hammer | |
653 | AVS_CPU_3DNOW = 0x40, // K6-2 | |
654 | AVS_CPU_3DNOW_EXT = 0x80, // Athlon | |
655 | AVS_CPU_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2, | |
656 | // which only Hammer will have anyway) | |
657 | AVS_CPUF_SSE3 = 0x100, // PIV+, K8 Venice | |
658 | AVS_CPUF_SSSE3 = 0x200, // Core 2 | |
659 | AVS_CPUF_SSE4 = 0x400, // Penryn, Wolfdale, Yorkfield | |
660 | AVS_CPUF_SSE4_1 = 0x400, | |
661 | AVS_CPUF_SSE4_2 = 0x800, // Nehalem | |
662 | }; | |
663 | ||
664 | AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error | |
665 | ||
666 | AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *); | |
667 | AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version); | |
668 | ||
669 | AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length); | |
670 | AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...); | |
671 | ||
672 | AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, void* val); | |
673 | // note: val is really a va_list; I hope everyone typedefs va_list to a pointer | |
674 | ||
675 | AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *, | |
676 | const char * name, const char * params, | |
677 | AVS_ApplyFunc apply, void * user_data); | |
678 | ||
679 | AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name); | |
680 | ||
681 | AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name, | |
682 | AVS_Value args, const char** arg_names); | |
683 | // The returned value must be be released with avs_release_value | |
684 | ||
685 | AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name); | |
686 | // The returned value must be be released with avs_release_value | |
687 | ||
688 | AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val); | |
689 | ||
690 | AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val); | |
691 | ||
692 | //void avs_push_context(AVS_ScriptEnvironment *, int level=0); | |
693 | //void avs_pop_context(AVS_ScriptEnvironment *); | |
694 | ||
695 | AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *, | |
696 | const AVS_VideoInfo * vi, int align); | |
697 | // align should be at least 16 | |
698 | ||
699 | #ifndef AVSC_NO_DECLSPEC | |
700 | AVSC_INLINE | |
701 | AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env, | |
702 | const AVS_VideoInfo * vi) | |
703 | {return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);} | |
704 | ||
705 | AVSC_INLINE | |
706 | AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env, | |
707 | const AVS_VideoInfo * vi) | |
708 | {return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);} | |
709 | #endif | |
710 | ||
711 | ||
712 | AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf); | |
713 | ||
714 | AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, BYTE* dstp, int dst_pitch, const BYTE* srcp, int src_pitch, int row_size, int height); | |
715 | ||
716 | typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env); | |
717 | AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data); | |
718 | ||
719 | AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height); | |
720 | // The returned video frame must be be released | |
721 | ||
722 | AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem); | |
723 | ||
724 | AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir); | |
725 | ||
726 | // avisynth.dll exports this; it's a way to use it as a library, without | |
727 | // writing an AVS script or without going through AVIFile. | |
728 | AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version); | |
729 | ||
730 | // this symbol is the entry point for the plugin and must | |
731 | // be defined | |
732 | AVSC_EXPORT | |
733 | const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env); | |
734 | ||
735 | ||
736 | AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *); | |
737 | ||
738 | ||
739 | 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); | |
740 | // The returned video frame must be be released | |
741 | ||
742 | #ifdef AVSC_NO_DECLSPEC | |
743 | // use LoadLibrary and related functions to dynamically load Avisynth instead of declspec(dllimport) | |
744 | /* | |
745 | The following functions needs to have been declared, probably from windows.h | |
746 | ||
747 | void* malloc(size_t) | |
748 | void free(void*); | |
749 | ||
750 | HMODULE LoadLibrary(const char*); | |
751 | void* GetProcAddress(HMODULE, const char*); | |
752 | FreeLibrary(HMODULE); | |
753 | */ | |
754 | ||
755 | ||
756 | typedef struct AVS_Library AVS_Library; | |
757 | ||
758 | #define AVSC_DECLARE_FUNC(name) name##_func name | |
759 | ||
760 | struct AVS_Library { | |
761 | HMODULE handle; | |
762 | ||
763 | AVSC_DECLARE_FUNC(avs_add_function); | |
764 | AVSC_DECLARE_FUNC(avs_at_exit); | |
765 | AVSC_DECLARE_FUNC(avs_bit_blt); | |
766 | AVSC_DECLARE_FUNC(avs_check_version); | |
767 | AVSC_DECLARE_FUNC(avs_clip_get_error); | |
768 | AVSC_DECLARE_FUNC(avs_copy_clip); | |
769 | AVSC_DECLARE_FUNC(avs_copy_value); | |
770 | AVSC_DECLARE_FUNC(avs_copy_video_frame); | |
771 | AVSC_DECLARE_FUNC(avs_create_script_environment); | |
772 | AVSC_DECLARE_FUNC(avs_delete_script_environment); | |
773 | AVSC_DECLARE_FUNC(avs_function_exists); | |
774 | AVSC_DECLARE_FUNC(avs_get_audio); | |
775 | AVSC_DECLARE_FUNC(avs_get_cpu_flags); | |
776 | AVSC_DECLARE_FUNC(avs_get_error); | |
777 | AVSC_DECLARE_FUNC(avs_get_frame); | |
778 | AVSC_DECLARE_FUNC(avs_get_parity); | |
779 | AVSC_DECLARE_FUNC(avs_get_var); | |
780 | AVSC_DECLARE_FUNC(avs_get_version); | |
781 | AVSC_DECLARE_FUNC(avs_get_video_info); | |
782 | AVSC_DECLARE_FUNC(avs_invoke); | |
783 | AVSC_DECLARE_FUNC(avs_make_writable); | |
784 | AVSC_DECLARE_FUNC(avs_new_c_filter); | |
785 | AVSC_DECLARE_FUNC(avs_new_video_frame_a); | |
786 | AVSC_DECLARE_FUNC(avs_release_clip); | |
787 | AVSC_DECLARE_FUNC(avs_release_value); | |
788 | AVSC_DECLARE_FUNC(avs_release_video_frame); | |
789 | AVSC_DECLARE_FUNC(avs_save_string); | |
790 | AVSC_DECLARE_FUNC(avs_set_cache_hints); | |
791 | AVSC_DECLARE_FUNC(avs_set_global_var); | |
792 | AVSC_DECLARE_FUNC(avs_set_memory_max); | |
793 | AVSC_DECLARE_FUNC(avs_set_to_clip); | |
794 | AVSC_DECLARE_FUNC(avs_set_var); | |
795 | AVSC_DECLARE_FUNC(avs_set_working_dir); | |
796 | AVSC_DECLARE_FUNC(avs_sprintf); | |
797 | AVSC_DECLARE_FUNC(avs_subframe); | |
798 | AVSC_DECLARE_FUNC(avs_subframe_planar); | |
799 | AVSC_DECLARE_FUNC(avs_take_clip); | |
800 | AVSC_DECLARE_FUNC(avs_vsprintf); | |
801 | }; | |
802 | ||
803 | #undef AVSC_DECLARE_FUNC | |
804 | ||
805 | ||
806 | AVSC_INLINE AVS_Library * avs_load_library() { | |
807 | AVS_Library *library = (AVS_Library *)malloc(sizeof(AVS_Library)); | |
808 | if (!library) | |
809 | return NULL; | |
810 | library->handle = LoadLibrary("avisynth"); | |
811 | if (library->handle == NULL) | |
812 | goto fail; | |
813 | ||
814 | #define __AVSC_STRINGIFY(x) #x | |
815 | #define AVSC_STRINGIFY(x) __AVSC_STRINGIFY(x) | |
816 | #define AVSC_LOAD_FUNC(name) {\ | |
817 | library->name = (name##_func) GetProcAddress(library->handle, AVSC_STRINGIFY(name));\ | |
818 | if (library->name == NULL)\ | |
819 | goto fail;\ | |
820 | } | |
821 | ||
822 | AVSC_LOAD_FUNC(avs_add_function); | |
823 | AVSC_LOAD_FUNC(avs_at_exit); | |
824 | AVSC_LOAD_FUNC(avs_bit_blt); | |
825 | AVSC_LOAD_FUNC(avs_check_version); | |
826 | AVSC_LOAD_FUNC(avs_clip_get_error); | |
827 | AVSC_LOAD_FUNC(avs_copy_clip); | |
828 | AVSC_LOAD_FUNC(avs_copy_value); | |
829 | AVSC_LOAD_FUNC(avs_copy_video_frame); | |
830 | AVSC_LOAD_FUNC(avs_create_script_environment); | |
831 | AVSC_LOAD_FUNC(avs_delete_script_environment); | |
832 | AVSC_LOAD_FUNC(avs_function_exists); | |
833 | AVSC_LOAD_FUNC(avs_get_audio); | |
834 | AVSC_LOAD_FUNC(avs_get_cpu_flags); | |
835 | AVSC_LOAD_FUNC(avs_get_error); | |
836 | AVSC_LOAD_FUNC(avs_get_frame); | |
837 | AVSC_LOAD_FUNC(avs_get_parity); | |
838 | AVSC_LOAD_FUNC(avs_get_var); | |
839 | AVSC_LOAD_FUNC(avs_get_version); | |
840 | AVSC_LOAD_FUNC(avs_get_video_info); | |
841 | AVSC_LOAD_FUNC(avs_invoke); | |
842 | AVSC_LOAD_FUNC(avs_make_writable); | |
843 | AVSC_LOAD_FUNC(avs_new_c_filter); | |
844 | AVSC_LOAD_FUNC(avs_new_video_frame_a); | |
845 | AVSC_LOAD_FUNC(avs_release_clip); | |
846 | AVSC_LOAD_FUNC(avs_release_value); | |
847 | AVSC_LOAD_FUNC(avs_release_video_frame); | |
848 | AVSC_LOAD_FUNC(avs_save_string); | |
849 | AVSC_LOAD_FUNC(avs_set_cache_hints); | |
850 | AVSC_LOAD_FUNC(avs_set_global_var); | |
851 | AVSC_LOAD_FUNC(avs_set_memory_max); | |
852 | AVSC_LOAD_FUNC(avs_set_to_clip); | |
853 | AVSC_LOAD_FUNC(avs_set_var); | |
854 | AVSC_LOAD_FUNC(avs_set_working_dir); | |
855 | AVSC_LOAD_FUNC(avs_sprintf); | |
856 | AVSC_LOAD_FUNC(avs_subframe); | |
857 | AVSC_LOAD_FUNC(avs_subframe_planar); | |
858 | AVSC_LOAD_FUNC(avs_take_clip); | |
859 | AVSC_LOAD_FUNC(avs_vsprintf); | |
860 | ||
861 | #undef __AVSC_STRINGIFY | |
862 | #undef AVSC_STRINGIFY | |
863 | #undef AVSC_LOAD_FUNC | |
864 | ||
865 | return library; | |
866 | ||
867 | fail: | |
868 | free(library); | |
869 | return NULL; | |
870 | } | |
871 | ||
872 | AVSC_INLINE void avs_free_library(AVS_Library *library) { | |
873 | if (!library) | |
874 | return; | |
875 | FreeLibrary(library->handle); | |
876 | free(library); | |
877 | } | |
878 | #endif | |
879 | ||
880 | #endif |