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Diffstat (limited to 'compat/avisynth/avxsynth_c.h')
| -rw-r--r-- | compat/avisynth/avxsynth_c.h | 728 |
1 files changed, 728 insertions, 0 deletions
diff --git a/compat/avisynth/avxsynth_c.h b/compat/avisynth/avxsynth_c.h new file mode 100644 index 0000000..991f4be --- /dev/null +++ b/compat/avisynth/avxsynth_c.h @@ -0,0 +1,728 @@ +// Avisynth C Interface Version 0.20 +// Copyright 2003 Kevin Atkinson + +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 2 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, +// MA 02110-1301 USA, or visit +// http://www.gnu.org/copyleft/gpl.html . +// +// As a special exception, I give you permission to link to the +// Avisynth C interface with independent modules that communicate with +// the Avisynth C interface solely through the interfaces defined in +// avisynth_c.h, regardless of the license terms of these independent +// modules, and to copy and distribute the resulting combined work +// under terms of your choice, provided that every copy of the +// combined work is accompanied by a complete copy of the source code +// of the Avisynth C interface and Avisynth itself (with the version +// used to produce the combined work), being distributed under the +// terms of the GNU General Public License plus this exception. An +// independent module is a module which is not derived from or based +// on Avisynth C Interface, such as 3rd-party filters, import and +// export plugins, or graphical user interfaces. + +#ifndef __AVXSYNTH_C__ +#define __AVXSYNTH_C__ + +#include "windowsPorts/windows2linux.h" +#include <stdarg.h> + +#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 + +#ifdef __GNUC__ +typedef long long int INT64; +#else +typedef __int64 INT64; +#endif + + +///////////////////////////////////////////////////////////////////// +// +// Constants +// + +#ifndef __AVXSYNTH_H__ +enum { AVISYNTH_INTERFACE_VERSION = 3 }; +#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}; + + // Colorspace properties. +enum {AVS_CS_BGR = 1<<28, + AVS_CS_YUV = 1<<29, + AVS_CS_INTERLEAVED = 1<<30, + AVS_CS_PLANAR = 1<<31}; + + // 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 | AVS_CS_YUV | AVS_CS_PLANAR, // y-v-u, planar + AVS_CS_I420 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR, // y-u-v, planar + AVS_CS_IYUV = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR // same as above +}; + +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 + +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_yv12(const AVS_VideoInfo * p) + { return ((p->pixel_type & AVS_CS_YV12) == AVS_CS_YV12)||((p->pixel_type & AVS_CS_I420) == AVS_CS_I420); } + +AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space) + { return ((p->pixel_type & c_space) == c_space); } + +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_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 { + unsigned char * 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. + long sequence_number; + + 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 { + int refcount; + AVS_VideoFrameBuffer * vfb; + int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture. +} 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_size>>1; + else return 0; + case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED: + if (p->pitchUV) { + r = ((p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)) )>>1; // Aligned rowsize + if (r < p->pitchUV) + return r; + return p->row_size>>1; + } 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->height>>1; + return 0; + } + return p->height;} + +AVSC_INLINE const unsigned char* avs_get_read_ptr(const AVS_VideoFrame * p) { + return p->vfb->data + p->offset;} + +AVSC_INLINE const unsigned char* 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 unsigned char* 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 unsigned char* 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; + } + } +} + +#if defined __cplusplus +extern "C" +{ +#endif // __cplusplus +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 *); +#if defined __cplusplus +} +#endif // __cplusplus + +#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 +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; + INT64 integer64; // match addition of __int64 to avxplugin.h + 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'; } + +#if defined __cplusplus +extern "C" +{ +#endif // __cplusplus +AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *); +AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *); +#if defined __cplusplus +} +#endif // __cplusplus + +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 am 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 = {0}; 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 = {0}; v.type = 'i'; v.d.integer = v0; return v; } +AVSC_INLINE AVS_Value avs_new_value_string(const char * v0) + { AVS_Value v = {0}; v.type = 's'; v.d.string = v0; return v; } +AVSC_INLINE AVS_Value avs_new_value_float(float v0) + { AVS_Value v = {0}; v.type = 'f'; v.d.floating_pt = v0; return v;} +AVSC_INLINE AVS_Value avs_new_value_error(const char * v0) + { AVS_Value v = {0}; 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 = {0}; 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 = {0}; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; } + +///////////////////////////////////////////////////////////////////// +// +// AVS_Clip +// +#if defined __cplusplus +extern "C" +{ +#endif // __cplusplus +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, size_t frame_range); +#if defined __cplusplus +} +#endif // __cplusplus + +// 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 +{ + // 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. +#if defined __cplusplus +extern "C" +{ +#endif // __cplusplus +AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e, + AVS_FilterInfo * * fi, + AVS_Value child, int store_child); +#if defined __cplusplus +} +#endif // __cplusplus + + +///////////////////////////////////////////////////////////////////// +// +// 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) +}; + +#if defined __cplusplus +extern "C" +{ +#endif // __cplusplus +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, va_list 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 +#if defined __cplusplus +} +#endif // __cplusplus + +#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 + +#if defined __cplusplus +extern "C" +{ +#endif // __cplusplus +AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf); + +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); + +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); +#if defined __cplusplus +} +#endif // __cplusplus + +// 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); + + +#if defined __cplusplus +extern "C" +{ +#endif // __cplusplus +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 +#if defined __cplusplus +} +#endif // __cplusplus + +#endif //__AVXSYNTH_C__ |
