#ifndef __AVISYNTH_C__
#define __AVISYNTH_C__
-#ifdef __cplusplus
-# define EXTERN_C extern "C"
-#else
-# define EXTERN_C
-#endif
-
-#define AVSC_USE_STDCALL 1
-
-#ifndef AVSC_USE_STDCALL
-# define AVSC_CC __cdecl
-#else
-# define AVSC_CC __stdcall
-#endif
-
-#define AVSC_INLINE static __inline
-
-#ifdef AVISYNTH_C_EXPORTS
-# define AVSC_EXPORT EXTERN_C
-# define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
-#else
-# define AVSC_EXPORT EXTERN_C __declspec(dllexport)
-# ifndef AVSC_NO_DECLSPEC
-# define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
-# else
-# define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
-# endif
-#endif
-
-typedef unsigned char BYTE;
-#ifdef __GNUC__
-typedef long long int INT64;
-#else
-typedef __int64 INT64;
-#endif
-
-
-/////////////////////////////////////////////////////////////////////
-//
-// Constants
-//
-
-#ifndef __AVISYNTH_H__
-enum { AVISYNTH_INTERFACE_VERSION = 4 };
-#endif
-
-enum {AVS_SAMPLE_INT8 = 1<<0,
- AVS_SAMPLE_INT16 = 1<<1,
- AVS_SAMPLE_INT24 = 1<<2,
- AVS_SAMPLE_INT32 = 1<<3,
- AVS_SAMPLE_FLOAT = 1<<4};
-
-enum {AVS_PLANAR_Y=1<<0,
- AVS_PLANAR_U=1<<1,
- AVS_PLANAR_V=1<<2,
- AVS_PLANAR_ALIGNED=1<<3,
- AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
- AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
- AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED,
- AVS_PLANAR_A=1<<4,
- AVS_PLANAR_R=1<<5,
- AVS_PLANAR_G=1<<6,
- AVS_PLANAR_B=1<<7,
- AVS_PLANAR_A_ALIGNED=AVS_PLANAR_A|AVS_PLANAR_ALIGNED,
- AVS_PLANAR_R_ALIGNED=AVS_PLANAR_R|AVS_PLANAR_ALIGNED,
- AVS_PLANAR_G_ALIGNED=AVS_PLANAR_G|AVS_PLANAR_ALIGNED,
- AVS_PLANAR_B_ALIGNED=AVS_PLANAR_B|AVS_PLANAR_ALIGNED};
-
- // Colorspace properties.
-enum {AVS_CS_BGR = 1<<28,
- AVS_CS_YUV = 1<<29,
- AVS_CS_INTERLEAVED = 1<<30,
- AVS_CS_PLANAR = 1<<31,
-
- AVS_CS_SHIFT_SUB_WIDTH = 0,
- AVS_CS_SHIFT_SUB_HEIGHT = 1 << 3,
- AVS_CS_SHIFT_SAMPLE_BITS = 1 << 4,
-
- AVS_CS_SUB_WIDTH_MASK = 7 << AVS_CS_SHIFT_SUB_WIDTH,
- AVS_CS_SUB_WIDTH_1 = 3 << AVS_CS_SHIFT_SUB_WIDTH, // YV24
- AVS_CS_SUB_WIDTH_2 = 0 << AVS_CS_SHIFT_SUB_WIDTH, // YV12, I420, YV16
- AVS_CS_SUB_WIDTH_4 = 1 << AVS_CS_SHIFT_SUB_WIDTH, // YUV9, YV411
-
- AVS_CS_VPLANEFIRST = 1 << 3, // YV12, YV16, YV24, YV411, YUV9
- AVS_CS_UPLANEFIRST = 1 << 4, // I420
-
- AVS_CS_SUB_HEIGHT_MASK = 7 << AVS_CS_SHIFT_SUB_HEIGHT,
- AVS_CS_SUB_HEIGHT_1 = 3 << AVS_CS_SHIFT_SUB_HEIGHT, // YV16, YV24, YV411
- AVS_CS_SUB_HEIGHT_2 = 0 << AVS_CS_SHIFT_SUB_HEIGHT, // YV12, I420
- AVS_CS_SUB_HEIGHT_4 = 1 << AVS_CS_SHIFT_SUB_HEIGHT, // YUV9
-
- AVS_CS_SAMPLE_BITS_MASK = 7 << AVS_CS_SHIFT_SAMPLE_BITS,
- AVS_CS_SAMPLE_BITS_8 = 0 << AVS_CS_SHIFT_SAMPLE_BITS,
- AVS_CS_SAMPLE_BITS_16 = 1 << AVS_CS_SHIFT_SAMPLE_BITS,
- AVS_CS_SAMPLE_BITS_32 = 2 << AVS_CS_SHIFT_SAMPLE_BITS,
-
- 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,
- AVS_CS_PLANAR_FILTER = ~( AVS_CS_VPLANEFIRST | AVS_CS_UPLANEFIRST )};
-
- // Specific colorformats
-enum {
- AVS_CS_UNKNOWN = 0,
- AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
- AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
- AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
- // AVS_CS_YV12 = 1<<3 Reserved
- // AVS_CS_I420 = 1<<4 Reserved
- AVS_CS_RAW32 = 1<<5 | AVS_CS_INTERLEAVED,
-
- 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
- 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
- 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
- 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
- AVS_CS_IYUV = AVS_CS_I420,
- 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
- 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
- AVS_CS_Y8 = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 // Y 4:0:0 planar
-};
-
-enum {
- AVS_IT_BFF = 1<<0,
- AVS_IT_TFF = 1<<1,
- AVS_IT_FIELDBASED = 1<<2};
-
-enum {
- AVS_FILTER_TYPE=1,
- AVS_FILTER_INPUT_COLORSPACE=2,
- AVS_FILTER_OUTPUT_TYPE=9,
- AVS_FILTER_NAME=4,
- AVS_FILTER_AUTHOR=5,
- AVS_FILTER_VERSION=6,
- AVS_FILTER_ARGS=7,
- AVS_FILTER_ARGS_INFO=8,
- AVS_FILTER_ARGS_DESCRIPTION=10,
- AVS_FILTER_DESCRIPTION=11};
-
-enum { //SUBTYPES
- AVS_FILTER_TYPE_AUDIO=1,
- AVS_FILTER_TYPE_VIDEO=2,
- AVS_FILTER_OUTPUT_TYPE_SAME=3,
- AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
-
-enum {
- AVS_CACHE_NOTHING=0,
- AVS_CACHE_RANGE=1,
- AVS_CACHE_ALL=2,
- AVS_CACHE_AUDIO=3,
- AVS_CACHE_AUDIO_NONE=4,
- AVS_CACHE_AUDIO_AUTO=5
- };
-
-#define AVS_FRAME_ALIGN 16
+/* AVS uses a versioned interface to control backwards compatibility */
+#define AVS_INTERFACE_25 2
+/* Types */
typedef struct AVS_Clip AVS_Clip;
typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
-/////////////////////////////////////////////////////////////////////
-//
-// AVS_VideoInfo
-//
-
-// AVS_VideoInfo is layed out identicly to VideoInfo
-typedef struct AVS_VideoInfo {
- int width, height; // width=0 means no video
- unsigned fps_numerator, fps_denominator;
- int num_frames;
-
- int pixel_type;
-
- int audio_samples_per_second; // 0 means no audio
- int sample_type;
- INT64 num_audio_samples;
- int nchannels;
-
- // Imagetype properties
-
- int image_type;
-} AVS_VideoInfo;
-
-// useful functions of the above
-AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
- { return (p->width!=0); }
-
-AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
- { return (p->audio_samples_per_second!=0); }
-
-AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
- { return !!(p->pixel_type&AVS_CS_BGR); }
-
-AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
- { return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
-
-AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
- { return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
-
-AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
- { return !!(p->pixel_type&AVS_CS_YUV ); }
-
-AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
- { return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
-
-AVSC_INLINE int avs_is_yv24(const AVS_VideoInfo * p)
- { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV24 & AVS_CS_PLANAR_FILTER); }
-
-AVSC_INLINE int avs_is_yv16(const AVS_VideoInfo * p)
- { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV16 & AVS_CS_PLANAR_FILTER); }
-
-AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
- { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV12 & AVS_CS_PLANAR_FILTER); }
-
-AVSC_INLINE int avs_is_yv411(const AVS_VideoInfo * p)
- { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV411 & AVS_CS_PLANAR_FILTER); }
-
-AVSC_INLINE int avs_is_y8(const AVS_VideoInfo * p)
- { return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_Y8 & AVS_CS_PLANAR_FILTER); }
-
-AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
- { return ((p->pixel_type & property)==property ); }
-
-AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
- { return !!(p->pixel_type & AVS_CS_PLANAR); }
-
-AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space)
- { 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); }
-
-AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
- { return !!(p->image_type & AVS_IT_FIELDBASED); }
-
-AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
- { return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
-
-AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
- { return !!(p->image_type & AVS_IT_BFF); }
-
-AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
- { return !!(p->image_type & AVS_IT_TFF); }
-
-AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p)
-{
- switch (p->pixel_type) {
- case AVS_CS_BGR24: return 24;
- case AVS_CS_BGR32: return 32;
- case AVS_CS_YUY2: return 16;
- case AVS_CS_YV12:
- case AVS_CS_I420: return 12;
- default: return 0;
- }
-}
-AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels)
- { return pixels * (avs_bits_per_pixel(p)>>3); } // Will work on planar images, but will return only luma planes
-
-AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p)
- { return avs_bytes_from_pixels(p,p->width); } // Also only returns first plane on planar images
-
-AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi)
- { 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); }
-
-AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
- { return p->audio_samples_per_second; }
-
-
-AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
-{
- switch (p->sample_type) {
- case AVS_SAMPLE_INT8: return sizeof(signed char);
- case AVS_SAMPLE_INT16: return sizeof(signed short);
- case AVS_SAMPLE_INT24: return 3;
- case AVS_SAMPLE_INT32: return sizeof(signed int);
- case AVS_SAMPLE_FLOAT: return sizeof(float);
- default: return 0;
- }
-}
-AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
- { return p->nchannels*avs_bytes_per_channel_sample(p);}
-
-AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
- { return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
-
-AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
- { return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
-
-AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
- { return bytes / avs_bytes_per_audio_sample(p); }
-
-AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
- { return samples * avs_bytes_per_audio_sample(p); }
-
-AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
- { return p->nchannels; }
-
-AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
- { return p->sample_type;}
-
-// useful mutator
-AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
- { p->image_type|=property; }
-
-AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
- { p->image_type&=~property; }
-
-AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
- { if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
-
-AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
-{
- unsigned x=numerator, y=denominator;
- while (y) { // find gcd
- unsigned t = x%y; x = y; y = t;
- }
- p->fps_numerator = numerator/x;
- p->fps_denominator = denominator/x;
-}
-
-AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
-{
- return (x->pixel_type == y->pixel_type)
- || (avs_is_yv12(x) && avs_is_yv12(y));
-}
-
-/////////////////////////////////////////////////////////////////////
-//
-// AVS_VideoFrame
-//
-
-// VideoFrameBuffer holds information about a memory block which is used
-// for video data. For efficiency, instances of this class are not deleted
-// when the refcount reaches zero; instead they're stored in a linked list
-// to be reused. The instances are deleted when the corresponding AVS
-// file is closed.
-
-// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
-// DO NOT USE THIS STRUCTURE DIRECTLY
-typedef struct AVS_VideoFrameBuffer {
- BYTE * data;
- int data_size;
- // sequence_number is incremented every time the buffer is changed, so
- // that stale views can tell they're no longer valid.
- volatile long sequence_number;
-
- volatile long refcount;
-} AVS_VideoFrameBuffer;
-
-// VideoFrame holds a "window" into a VideoFrameBuffer.
-
-// AVS_VideoFrame is layed out identicly to IVideoFrame
-// DO NOT USE THIS STRUCTURE DIRECTLY
-typedef struct AVS_VideoFrame {
- volatile long refcount;
- AVS_VideoFrameBuffer * vfb;
- int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
- int row_sizeUV, heightUV;
-} AVS_VideoFrame;
-
-// Access functions for AVS_VideoFrame
-AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
- return p->pitch;}
-
-AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) {
- switch (plane) {
- case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;}
- return p->pitch;}
-
-AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
- return p->row_size; }
-
-AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) {
- int r;
- switch (plane) {
- case AVS_PLANAR_U: case AVS_PLANAR_V:
- if (p->pitchUV) return p->row_sizeUV;
- else return 0;
- case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
- if (p->pitchUV) {
- r = (p->row_sizeUV+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
- if (r < p->pitchUV)
- return r;
- return p->row_sizeUV;
- } else return 0;
- case AVS_PLANAR_Y_ALIGNED:
- r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
- if (r <= p->pitch)
- return r;
- return p->row_size;
- }
- return p->row_size;
-}
-
-AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
- return p->height;}
-
-AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) {
- switch (plane) {
- case AVS_PLANAR_U: case AVS_PLANAR_V:
- if (p->pitchUV) return p->heightUV;
- return 0;
- }
- return p->height;}
-
-AVSC_INLINE const BYTE* avs_get_read_ptr(const AVS_VideoFrame * p) {
- return p->vfb->data + p->offset;}
-
-AVSC_INLINE const BYTE* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane)
-{
- switch (plane) {
- case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
- case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
- default: return p->vfb->data + p->offset;}
-}
-
-AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) {
- return (p->refcount == 1 && p->vfb->refcount == 1);}
-
-AVSC_INLINE BYTE* avs_get_write_ptr(const AVS_VideoFrame * p)
-{
- if (avs_is_writable(p)) {
- ++p->vfb->sequence_number;
- return p->vfb->data + p->offset;
- } else
- return 0;
-}
-
-AVSC_INLINE BYTE* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane)
-{
- if (plane==AVS_PLANAR_Y && avs_is_writable(p)) {
- ++p->vfb->sequence_number;
- return p->vfb->data + p->offset;
- } else if (plane==AVS_PLANAR_Y) {
- return 0;
- } else {
- switch (plane) {
- case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
- case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
- default: return p->vfb->data + p->offset;
- }
- }
-}
-
-
-AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
-// makes a shallow copy of a video frame
-AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
-
-#ifndef AVSC_NO_DECLSPEC
-AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
- {avs_release_video_frame(f);}
-AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
- {return avs_copy_video_frame(f);}
-#endif
-
-/////////////////////////////////////////////////////////////////////
-//
-// AVS_Value
-//
-
-// Treat AVS_Value as a fat pointer. That is use avs_copy_value
-// and avs_release_value appropiaty as you would if AVS_Value was
-// a pointer.
-
-// To maintain source code compatibility with future versions of the
-// avisynth_c API don't use the AVS_Value directly. Use the helper
-// functions below.
-
-// AVS_Value is layed out identicly to AVSValue
+/* AVS_Value is layed out identicly to AVSValue */
typedef struct AVS_Value AVS_Value;
-struct AVS_Value {
- short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
- // for some function e'rror
- short array_size;
- union {
- void * clip; // do not use directly, use avs_take_clip
- char boolean;
- int integer;
- float floating_pt;
- const char * string;
- const AVS_Value * array;
- } d;
-};
-
-// AVS_Value should be initilized with avs_void.
-// Should also set to avs_void after the value is released
-// with avs_copy_value. Consider it the equalvent of setting
-// a pointer to NULL
-static const AVS_Value avs_void = {'v'};
-
-AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
-AVSC_API(void, avs_release_value)(AVS_Value);
-
-AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
-AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
-AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
-AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
-AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
-AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
-AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
-AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
-
-AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
-AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
-
-AVSC_INLINE int avs_as_bool(AVS_Value v)
- { return v.d.boolean; }
-AVSC_INLINE int avs_as_int(AVS_Value v)
- { return v.d.integer; }
-AVSC_INLINE const char * avs_as_string(AVS_Value v)
- { return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
-AVSC_INLINE double avs_as_float(AVS_Value v)
- { return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
-AVSC_INLINE const char * avs_as_error(AVS_Value v)
- { return avs_is_error(v) ? v.d.string : 0; }
-AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
- { return v.d.array; }
-AVSC_INLINE int avs_array_size(AVS_Value v)
- { return avs_is_array(v) ? v.array_size : 1; }
-AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
- { return avs_is_array(v) ? v.d.array[index] : v; }
-
-// only use these functions on an AVS_Value that does not already have
-// an active value. Remember, treat AVS_Value as a fat pointer.
-AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
- { AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
-AVSC_INLINE AVS_Value avs_new_value_int(int v0)
- { AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
-AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
- { AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
-AVSC_INLINE AVS_Value avs_new_value_float(float v0)
- { AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
-AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
- { AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
-#ifndef AVSC_NO_DECLSPEC
-AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
- { AVS_Value v; avs_set_to_clip(&v, v0); return v; }
-#endif
-AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
- { AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
-
-/////////////////////////////////////////////////////////////////////
-//
-// AVS_Clip
-//
-
-AVSC_API(void, avs_release_clip)(AVS_Clip *);
-AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
-
-AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
-
-AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
-
-AVSC_API(int, avs_get_version)(AVS_Clip *);
-
-AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
-// The returned video frame must be released with avs_release_video_frame
-
-AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
-// return field parity if field_based, else parity of first field in frame
-
-AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
- INT64 start, INT64 count);
-// start and count are in samples
-
-AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
- int cachehints, int frame_range);
-
-// This is the callback type used by avs_add_function
-typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
- (AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
-
-typedef struct AVS_FilterInfo AVS_FilterInfo;
-struct AVS_FilterInfo
+struct AVS_Value
{
- // these members should not be modified outside of the AVS_ApplyFunc callback
- AVS_Clip * child;
- AVS_VideoInfo vi;
- AVS_ScriptEnvironment * env;
- AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
- int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
- int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
- INT64 start, INT64 count);
- int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
- int frame_range);
- void (AVSC_CC * free_filter)(AVS_FilterInfo *);
-
- // Should be set when ever there is an error to report.
- // It is cleared before any of the above methods are called
- const char * error;
- // this is to store whatever and may be modified at will
- void * user_data;
-};
-
-// Create a new filter
-// fi is set to point to the AVS_FilterInfo so that you can
-// modify it once it is initilized.
-// store_child should generally be set to true. If it is not
-// set than ALL methods (the function pointers) must be defined
-// If it is set than you do not need to worry about freeing the child
-// clip.
-AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
- AVS_FilterInfo * * fi,
- AVS_Value child, int store_child);
-
-/////////////////////////////////////////////////////////////////////
-//
-// AVS_ScriptEnvironment
-//
-
-// For GetCPUFlags. These are backwards-compatible with those in VirtualDub.
-enum {
- /* slowest CPU to support extension */
- AVS_CPU_FORCE = 0x01, // N/A
- AVS_CPU_FPU = 0x02, // 386/486DX
- AVS_CPU_MMX = 0x04, // P55C, K6, PII
- AVS_CPU_INTEGER_SSE = 0x08, // PIII, Athlon
- AVS_CPU_SSE = 0x10, // PIII, Athlon XP/MP
- AVS_CPU_SSE2 = 0x20, // PIV, Hammer
- AVS_CPU_3DNOW = 0x40, // K6-2
- AVS_CPU_3DNOW_EXT = 0x80, // Athlon
- AVS_CPU_X86_64 = 0xA0, // Hammer (note: equiv. to 3DNow + SSE2,
- // which only Hammer will have anyway)
- AVS_CPUF_SSE3 = 0x100, // PIV+, K8 Venice
- AVS_CPUF_SSSE3 = 0x200, // Core 2
- AVS_CPUF_SSE4 = 0x400, // Penryn, Wolfdale, Yorkfield
- AVS_CPUF_SSE4_1 = 0x400,
- AVS_CPUF_SSE4_2 = 0x800, // Nehalem
+ short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
+ short array_size;
+ union
+ {
+ void * clip; // do not use directly, use avs_take_clip
+ char boolean;
+ int integer;
+ float floating_pt;
+ const char * string;
+ const AVS_Value * array;
+ } d;
};
-AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
-
-AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
-AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
-
-AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
-AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
-
-AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, void* val);
- // note: val is really a va_list; I hope everyone typedefs va_list to a pointer
-
-AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
- const char * name, const char * params,
- AVS_ApplyFunc apply, void * user_data);
-
-AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
-
-AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
- AVS_Value args, const char** arg_names);
-// The returned value must be be released with avs_release_value
-
-AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
-// The returned value must be be released with avs_release_value
-
-AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
-
-AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
-
-//void avs_push_context(AVS_ScriptEnvironment *, int level=0);
-//void avs_pop_context(AVS_ScriptEnvironment *);
-
-AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
- const AVS_VideoInfo * vi, int align);
-// align should be at least 16
-
-#ifndef AVSC_NO_DECLSPEC
-AVSC_INLINE
-AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
- const AVS_VideoInfo * vi)
- {return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
-
-AVSC_INLINE
-AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
- const AVS_VideoInfo * vi)
- {return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
-#endif
-
-
-AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
-
-AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, BYTE* dstp, int dst_pitch, const BYTE* srcp, int src_pitch, int row_size, int height);
-
-typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
-AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
-
-AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
-// The returned video frame must be be released
-
-AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
-
-AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
-
-// avisynth.dll exports this; it's a way to use it as a library, without
-// writing an AVS script or without going through AVIFile.
-AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
-
-// this symbol is the entry point for the plugin and must
-// be defined
-AVSC_EXPORT
-const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
-
-
-AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
-
-
-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);
-// The returned video frame must be be released
-
-#ifdef AVSC_NO_DECLSPEC
-// use LoadLibrary and related functions to dynamically load Avisynth instead of declspec(dllimport)
-/*
- The following functions needs to have been declared, probably from windows.h
-
- void* malloc(size_t)
- void free(void*);
-
- HMODULE LoadLibrary(const char*);
- void* GetProcAddress(HMODULE, const char*);
- FreeLibrary(HMODULE);
-*/
-
-
-typedef struct AVS_Library AVS_Library;
-
-#define AVSC_DECLARE_FUNC(name) name##_func name
-
-struct AVS_Library {
- HMODULE handle;
-
- AVSC_DECLARE_FUNC(avs_add_function);
- AVSC_DECLARE_FUNC(avs_at_exit);
- AVSC_DECLARE_FUNC(avs_bit_blt);
- AVSC_DECLARE_FUNC(avs_check_version);
- AVSC_DECLARE_FUNC(avs_clip_get_error);
- AVSC_DECLARE_FUNC(avs_copy_clip);
- AVSC_DECLARE_FUNC(avs_copy_value);
- AVSC_DECLARE_FUNC(avs_copy_video_frame);
- AVSC_DECLARE_FUNC(avs_create_script_environment);
- AVSC_DECLARE_FUNC(avs_delete_script_environment);
- AVSC_DECLARE_FUNC(avs_function_exists);
- AVSC_DECLARE_FUNC(avs_get_audio);
- AVSC_DECLARE_FUNC(avs_get_cpu_flags);
- AVSC_DECLARE_FUNC(avs_get_error);
- AVSC_DECLARE_FUNC(avs_get_frame);
- AVSC_DECLARE_FUNC(avs_get_parity);
- AVSC_DECLARE_FUNC(avs_get_var);
- AVSC_DECLARE_FUNC(avs_get_version);
- AVSC_DECLARE_FUNC(avs_get_video_info);
- AVSC_DECLARE_FUNC(avs_invoke);
- AVSC_DECLARE_FUNC(avs_make_writable);
- AVSC_DECLARE_FUNC(avs_new_c_filter);
- AVSC_DECLARE_FUNC(avs_new_video_frame_a);
- AVSC_DECLARE_FUNC(avs_release_clip);
- AVSC_DECLARE_FUNC(avs_release_value);
- AVSC_DECLARE_FUNC(avs_release_video_frame);
- AVSC_DECLARE_FUNC(avs_save_string);
- AVSC_DECLARE_FUNC(avs_set_cache_hints);
- AVSC_DECLARE_FUNC(avs_set_global_var);
- AVSC_DECLARE_FUNC(avs_set_memory_max);
- AVSC_DECLARE_FUNC(avs_set_to_clip);
- AVSC_DECLARE_FUNC(avs_set_var);
- AVSC_DECLARE_FUNC(avs_set_working_dir);
- AVSC_DECLARE_FUNC(avs_sprintf);
- AVSC_DECLARE_FUNC(avs_subframe);
- AVSC_DECLARE_FUNC(avs_subframe_planar);
- AVSC_DECLARE_FUNC(avs_take_clip);
- AVSC_DECLARE_FUNC(avs_vsprintf);
-};
-
-#undef AVSC_DECLARE_FUNC
-
-
-AVSC_INLINE AVS_Library * avs_load_library() {
- AVS_Library *library = (AVS_Library *)malloc(sizeof(AVS_Library));
- if (library == NULL)
- return NULL;
- library->handle = LoadLibrary("avisynth");
- if (library->handle == NULL)
- goto fail;
-
-#define __AVSC_STRINGIFY(x) #x
-#define AVSC_STRINGIFY(x) __AVSC_STRINGIFY(x)
-#define AVSC_LOAD_FUNC(name) {\
- library->name = (name##_func) GetProcAddress(library->handle, AVSC_STRINGIFY(name));\
- if (library->name == NULL)\
- goto fail;\
-}
-
- AVSC_LOAD_FUNC(avs_add_function);
- AVSC_LOAD_FUNC(avs_at_exit);
- AVSC_LOAD_FUNC(avs_bit_blt);
- AVSC_LOAD_FUNC(avs_check_version);
- AVSC_LOAD_FUNC(avs_clip_get_error);
- AVSC_LOAD_FUNC(avs_copy_clip);
- AVSC_LOAD_FUNC(avs_copy_value);
- AVSC_LOAD_FUNC(avs_copy_video_frame);
- AVSC_LOAD_FUNC(avs_create_script_environment);
- AVSC_LOAD_FUNC(avs_delete_script_environment);
- AVSC_LOAD_FUNC(avs_function_exists);
- AVSC_LOAD_FUNC(avs_get_audio);
- AVSC_LOAD_FUNC(avs_get_cpu_flags);
- AVSC_LOAD_FUNC(avs_get_error);
- AVSC_LOAD_FUNC(avs_get_frame);
- AVSC_LOAD_FUNC(avs_get_parity);
- AVSC_LOAD_FUNC(avs_get_var);
- AVSC_LOAD_FUNC(avs_get_version);
- AVSC_LOAD_FUNC(avs_get_video_info);
- AVSC_LOAD_FUNC(avs_invoke);
- AVSC_LOAD_FUNC(avs_make_writable);
- AVSC_LOAD_FUNC(avs_new_c_filter);
- AVSC_LOAD_FUNC(avs_new_video_frame_a);
- AVSC_LOAD_FUNC(avs_release_clip);
- AVSC_LOAD_FUNC(avs_release_value);
- AVSC_LOAD_FUNC(avs_release_video_frame);
- AVSC_LOAD_FUNC(avs_save_string);
- AVSC_LOAD_FUNC(avs_set_cache_hints);
- AVSC_LOAD_FUNC(avs_set_global_var);
- AVSC_LOAD_FUNC(avs_set_memory_max);
- AVSC_LOAD_FUNC(avs_set_to_clip);
- AVSC_LOAD_FUNC(avs_set_var);
- AVSC_LOAD_FUNC(avs_set_working_dir);
- AVSC_LOAD_FUNC(avs_sprintf);
- AVSC_LOAD_FUNC(avs_subframe);
- AVSC_LOAD_FUNC(avs_subframe_planar);
- AVSC_LOAD_FUNC(avs_take_clip);
- AVSC_LOAD_FUNC(avs_vsprintf);
-
-#undef __AVSC_STRINGIFY
-#undef AVSC_STRINGIFY
-#undef AVSC_LOAD_FUNC
-
- return library;
-
-fail:
- free(library);
- return NULL;
-}
-
-AVSC_INLINE void avs_free_library(AVS_Library *library) {
- if (library == NULL)
- return;
- FreeLibrary(library->handle);
- free(library);
-}
-#endif
-
-#endif
+/* Function pointers */
+typedef AVS_ScriptEnvironment* (__stdcall *avs_create_script_environment_func)(int version);
+typedef AVS_Value (__stdcall *avs_invoke_func)(AVS_ScriptEnvironment *, const char * name, AVS_Value args, const char** arg_names);
+typedef int (__stdcall *avs_function_exists_func)(AVS_ScriptEnvironment *, const char * name);
+typedef void (__stdcall *avs_delete_script_environment_func)(AVS_ScriptEnvironment *);
+
+/* Inline functions */
+inline static int avs_is_int(AVS_Value v) { return v.type == 'i'; }
+inline static int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
+inline static int avs_is_error(AVS_Value v) { return v.type == 'e'; }
+inline static int avs_as_bool(AVS_Value v) { return v.d.boolean; }
+inline static double avs_as_float(AVS_Value v) { return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
+inline static AVS_Value avs_new_value_array(AVS_Value * v0, int size) { AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
+
+#endif //__AVISYNTH_C__
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