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* Copyright (c) 2005 Gianluigi Tiesi <sherpya@netfarm.it>
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* Avisynth C Interface Version 0.20
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* Copyright 2003 Kevin Atkinson
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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enum { AVISYNTH_INTERFACE_VERSION = 2 };
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AVS_SAMPLE_INT8 = 1<<0,
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AVS_SAMPLE_INT16 = 1<<1,
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AVS_SAMPLE_INT24 = 1<<2,
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AVS_SAMPLE_INT32 = 1<<3,
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AVS_SAMPLE_FLOAT = 1<<4
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AVS_PLANAR_ALIGNED=1<<3,
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AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
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AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
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AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED
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// Colorspace properties.
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AVS_CS_INTERLEAVED = 1<<30,
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// Specific colorformats
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AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
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AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
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AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
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AVS_CS_YV12 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR, // y-v-u, planar
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AVS_CS_I420 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR, // y-u-v, planar
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AVS_CS_IYUV = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR // same as above
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typedef struct AVS_Clip AVS_Clip;
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typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
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typedef struct AVS_Value AVS_Value;
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short type; // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
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// for some function e'rror
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void * clip; // do not use directly, use avs_take_clip
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const AVS_Value * array;
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// AVS_VideoInfo is layed out identicly to VideoInfo
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typedef struct AVS_VideoInfo {
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int width, height; // width=0 means no video
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unsigned fps_numerator, fps_denominator;
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int audio_samples_per_second; // 0 means no audio
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uint64_t num_audio_samples;
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// Imagetype properties
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typedef struct AVS_VideoFrameBuffer {
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// sequence_number is incremented every time the buffer is changed, so
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// that stale views can tell they're no longer valid.
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long sequence_number;
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} AVS_VideoFrameBuffer;
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typedef struct AVS_VideoFrame {
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AVS_VideoFrameBuffer * vfb;
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int offset, pitch, row_size, height, offsetU, offsetV, pitchUV; // U&V offsets are from top of picture.
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static __inline AVS_Value avs_new_value_string(const char * v0)
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{ AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
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static __inline AVS_Value avs_new_value_array(AVS_Value * v0, int size)
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{ AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
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static __inline int avs_is_error(AVS_Value v) { return v.type == 'e'; }
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static __inline int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
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static __inline int avs_is_string(AVS_Value v) { return v.type == 's'; }
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static __inline int avs_has_video(const AVS_VideoInfo * p) { return (p->width!=0); }
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static __inline int avs_has_audio(const AVS_VideoInfo * p) { return (p->audio_samples_per_second!=0); }
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static __inline const char * avs_as_string(AVS_Value v)
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{ return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
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static __inline int avs_is_rgb(const AVS_VideoInfo * p)
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{ return (p->pixel_type&AVS_CS_BGR); }
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static __inline int avs_is_rgb24(const AVS_VideoInfo * p)
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{ return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
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static __inline int avs_is_rgb32(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
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static __inline int avs_is_yuy(const AVS_VideoInfo * p)
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{ return (p->pixel_type&AVS_CS_YUV ); }
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static __inline int avs_is_yuy2(const AVS_VideoInfo * p)
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{ return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
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static __inline int avs_is_yv12(const AVS_VideoInfo * p)
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{ return ((p->pixel_type & AVS_CS_YV12) == AVS_CS_YV12)||((p->pixel_type & AVS_CS_I420) == AVS_CS_I420); }
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static __inline int avs_bits_per_pixel(const AVS_VideoInfo * p)
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switch (p->pixel_type) {
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case AVS_CS_BGR24: return 24;
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case AVS_CS_BGR32: return 32;
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case AVS_CS_YUY2: return 16;
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case AVS_CS_I420: return 12;